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North Dakota Weatherization Field Standards

1. cccccceeeeeceeceeceeeeeeeseceneaeeeeeeeeeeeesenneaeeeeeess 70 6210 Interior Storm WINKOWS cece ccccsseessecssesssesscesecesscesecssecnsecssccssecsssesssesesesessesssenscesecnaees 70 6220 Movable Window Insulation Systems 0 0 0 cece esccsseesceseesceseeseseecseeeeceeeecsaeeseesecseeeeeneees 71 6230 Non Allowable Window Materrials ccccccsccsscesscesscesecssecssecssecssccseseseseeseessessseseceseceaees 71 S761010 RIER B1010 1 EPES E A E E E E SEE EEE EA 71 6310 DOOrASSESSMENT 3 22 c2h cist nn a a r A ee ees 71 6320 Doof Repais an ene ro A N E A E 71 6330 Door Air Leakage zs aan s N Se ee 71 6340 Dof Repa Sae enra E EE E E EE E A E E E 72 6350 Door Replacements onnies nenon re i E O A A E EE ON 72 7000 Mobile Home Requirements 2 ccccceceesseeeeeceeeeeeeeeeeeeeeeceeeeeseeseeaneeseseeeseeeeesseeneeeeeeens 73 7100 Inspections and Repairs eccccccccceceeeeeeee cee ce tent eee eaaenaeeeeeeeeesesaeaececeeeeeseesincueaeeeerens 73 LITO Moisture Problem S iaeiae cde kode Redes osc cn a eet AE KEA Hetwa eek ees babe lank vite e 73 120 Electrical INSPSCUONS ssrin REAR EEN disuse tea E AER evigestacuces 73 7200 Air Leakage Reduction Requirements ssesesesssrirsseerrsteerrstttrrssttrrssttrnssttenrsstennsstennnntt 74 T300 INSUIATION Generalsin e i a a a E dni teded 75 7400 gt Ceiling Mmsulation raroa o aE AR AA O A A O A OEE 75 TO00 DUCTWORK cinin A ATAA Ba AE A TAT aN
2. 1 Set the blower door up in an exterior door with the least number of obstacles within 3 feet of the blower door fan If the doorway leads to an enclosed area make sure the space is open to the outdoors Do not set up in a door facing the wind if an acceptable alternative exists Install the frame and panel securely into the doorframe making sure that there are no gaps between any of the components or between the components and the doorframe Set the fan into the panel frame assembly making sure that the panel opening fits snugly around the fan Install the fan so that the flow ring assembly or low flow plate is facing toward the inside of the house Set up the fan in a level or nearly level position Set up the gauges in a vertical position if using the magnehelic or digital gauges Make sure the variable speed control is in the off position Plug the fan electric cord into a safe and fully functional electrical outlet Insert the tube from the house pressure gauge into the hole in the door panel Make sure that the end of the hose is not in front of the North Dakota Weatherization Field Standards January 2003 Page 102 a b 11000 Diagnostic Testing Procedures fan outlet or positioned so that it is exposed to windy conditions Leave the fan pressure gauge tube end inside the house not connected to the fan Ensure that the fabric cover or all the rings and the center plug are on the fan If you are using the magnehe
3. D D North Dakota Weatherization Field Standards January 2003 Page 46 4000 General Heat Waste Measures 4300 Piped Distribution Requirements 4240 New Ductwork Installations 1 NRT O 4300 Ducts supply registers and return grilles should be sized and selected according to the latest editions of Residential Duct Systems Manual D by ACCA Residential Comfort System Installation Standards Manual by SMACNA or a comparable industry accepted method Attempt to install all new ductwork within conditioned spaces Do not install ductwork within exterior walls All distribution air enclosures must be hard ducted that is building frame cavities closets crawl spaces and chases must not be used as distribution air enclosures However ductwork may be housed by or pass through these spaces Ductwork must be installed at least 4 inches from any bare earth Panned floor joists may not be used for air distribution A crawl space may not serve as a distribution plenum Existing crawl space plenums should be abandoned and replaced with a sealed duct system Do not use a dropped ceiling cavity as a plenum The installation of new ductwork into areas of a structure not currently served by the central space heating system may be cost effective when the area of the home is currently being heated with a more expensive energy source Piped Distribution Requirements Treatment of distribution pipes for hot water
4. The correct use of the State approved computerized energy audit and associated priority list is required Each Subgrantee is required to update all applicable information use by the computerized audit at North Dakota Weatherization Field Standards January 2003 Page 5 1000 Administrative Scope and General Requirements 1600 General Auditing and Weatherization Requirements least annually i e costs for measures cost of materials labor costs and fuel types Additional information detailing the subgrantee method for insuring accuracy of the input data must be documented as well 2 The health and safety of the clients subgrantee staff subgrantee subcontractors and the integrity of the building structure must not be compromised by any work completed with WAP funds 3 The subgrantee WAP coordinator has overall responsibility for proper implementation of the procedures detailed in the Field Standards 4 All WAP installations both repairs and conservation measures must comply with applicable building codes and regulations 5 Subgrantees are responsible for the quality control of all repair and energy conservation work 6 Ifan eligible client moves during the course of the WAP weatherization work the subgrantee should complete the repair and or conservation work in progress and any other measures necessary to secure the well being of future occupants the structure and the installed conservation materials However additional c
5. gt 2 3 4 5 6 7 0 020 8 09 12 13 16 17 20 22 24 26 28 30 0 025 10 11 15 16 20 22 25 27 30 32 35 38 0 030 12 13 18 19 24 26 30 32 36 39 42 45 0 035 14 15 21 23 28 30 35 38 4245 49 53 0 040 16 17 24 26 32 34 40 43 4852 56 60 0 045 18 19 27 29 36 39 4548 5458 63 68 0 050 20 22 30 32 40 43 50 54 60 65 70 75 0 055 22 24 33 36 4447 55 59 66 71 77 83 0 060 24 26 36 39 48 52 60 65 72 78 84 90 0 065 26 28 39 42 52 56 65 70 78 84 91 98 0 070 28 30 42 45 56 60 70 75 84 90 99 06 0 075 30 32 45 48 60 65 75 81 90 97 106 13 0 080 32 34 48 52 64 69 80 86 97 03 113 21 0 085 34 37 51 55 68 73 85 92 103 10 120 28 0 090 36 39 54 58 72 78 90 97 109 16 127 36 0 095 38 41 57 61 76 82 96 02 115 23 134 43 0 100 40 43 60 65 80 86 101 08 121 29 141 51 0 105 42 45 63 68 84 90 106 13 127 36 148 58 0 110 44 47 66 71 88 95 111 18 133 42 155 66 0 115 46 50 69 74 92 99 116 24 139 49 162 73 0 120 48 52 72 78 97 03 121 29 145 55 169 81 0 125 50 54 75 81 101 08 126 35 151 61 176 88 0 130 52 56 78 84 105 12 131 40 157 68 183 96 0 135 54 58 81 87 109 16 136 45 163 74 191 03 0 140 56 60 84 90 113 21 141 51 169 81 198 11 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 170 12000 Glossary 12000 Glossary oy ee Abatement A measure or set of measures designed to p
6. 2 At the beginning of each job measure the density of the insulation for a selected test area before beginning the major installation This should be done for insulation blowing jobs using any nozzle type or tubing method The density of blow insulation must be within the range of the values listed below 3 Insulate enclosed areas under floors slopes under kneewall cavities etc to high density level as follows a Blown cellulose 3 25 to 3 75 Ib ft b Blown fiberglass 1 6 lb ft 4 Insulate kneewall areas as follows a Blown cellulose 3 25 to 3 75 Ib ft b Blown fiberglass 1 6 lb ft c Fiberglass batts R 19 5 Densely packing cellulose insulation is preferred as a method for sealing air leakage paths and bypass leakage in attics where feasible 6 Calculating the number of bags is the preferred method for determining the proper amount of material to be installed into an attic area at a given R value 7 Where the combined material and labor costs can be reduced it is preferred that dropped soffits and similar construction details be filled with cellulose insulation 8 When a vapor barrier is installed with the insulation the barrier should be installed on the warm side of the insulation and never more than 1 3 of the R value away from the warm side surface 9 Add necessary insulation to eliminate voids and areas of incomplete coverage Cut or pull back existing fiberglass batts two feet from the soffit and blow and
7. Accurate records or documentation of all installed measures and their costs Costs must include labor used to install the measure An explanation for reasons that any weatherization measures with a SIR greater than 1 25 were not installed State WAP approved waivers North Dakota Weatherization Field Standards January 2003 Page 7 10 11 12 13 14 15 16 Ife 18 19 1000 Administrative Scope and General Requirements 1600 General Auditing and Weatherization Requirements Brief documentation to clarify situations where a technical waiver was implemented Brief documentation indicating that owners and clients were notified of any potential or real health or safety problems that necessitated weatherization work to be terminated Air leakage measures that are done to address client comfort e g storm window near reading chair jamb up kit on door near reading chair etc A complete record of the pressure diagnostics tests performed A signed client application which contains the needed client information Each unit inspected by crew personal will be assumed to have the final inspection completed on the date the work is completed leave final inspection date field in Weather Tite open Units for which the final inspection is conducted by an estimator inspector must state the actual date the inspection took place All inspection forms must include client and inspector signatures certifying satisfacto
8. out of sight of the heat exchanger this ensures that the reading will not be affected by radiant thermal energy from the heat exchanger ii Return side Drill a hole and insert the thermometer into the return plenum approximately two feet before the filter c Down flow furnaces mobile home The furnace compartment door should be closed while taking the temperature readings i Supply side Test the supply side air temperature at the supply register closest to the furnace Insert the thermometer probe into the register for the most accurate reading ii Return side Test the return side air temperature by placing the thermometer probe at or through the slots in the blower compartment cover near the top of the furnace 4 High limit furnace control supply side measurement only In some cases this should not be tested on newer furnaces Refer to the manufacturer s equipment manual a Up flow and horizontal flow furnaces Same location as for supply side heat rise measurement North Dakota Weatherization Field Standards January 2003 Page 93 8000 Combustion Appliances and Air Conditioners 8200 Air Conditioner Requirements b Down flow furnaces mobile home Place the thermometer through the slots in the top center of the blower compartment cover with the cover in place 5 Heat exchanger integrity a When performing a steady state efficiency test on a furnace the CO COz or O2 values change when the furnace distrib
9. preferred approaches are not required nor are they mandatory Subgrantees will be in compliance with WAP Standards if they choose not to implement items listed as preferred However the preferred approaches are provided as allowable options that will help to maximize the effectiveness of WAP services protect the health and safety of clients and crews and contribute to increased energy savings 6 These Standards are not intended to abridge safety health environmental or local codes or other ordinances Such requirements if more stringent than these shall apply if these Standards are more stringent the Standards shall apply North Dakota Weatherization Field Standards January 2003 Page 2 1000 Administrative Scope and General Requirements 1500 Monitoring by State 7 All questions concerning the content or implementation of the WAP Standards should be directed to the DCS WAP Program Administrator 1300 Enforcement 1 Continued subgrantee inability or refusal to comply with applicable standards are grounds for the North Dakota DCS to suspend terminate or otherwise apply special condition s to the subgrantee s agreement to provide weatherization services 1400 Amendments to Program Field Standards 1 From time to time the North Dakota Program Field Standards may be amended and or revised by the DCS to reflect changes in State and Federal regulations state of the art technology and general experience of the we
10. 42 57 6 7 30 9 12 10 95 12 77 14 59 16 42 18 24 20 07 21 89 23 72 25 54 27 36 29 19 31 01 32 84 34 66 36 49 38 31 40 13 41 96 43 78 45 61 47 43 49 26 51 08 7 8 51 10 64 12 77 14 90 17 03 19 16 21 28 23 41 25 54 27 67 29 80 31 93 34 05 36 18 38 31 40 44 42 57 44 70 46 82 48 95 51 08 53 21 55 34 57 47 59 59 Page 149 Hours On Per 0 020 2 17 0 025 2 71 0 030 3 25 0 035 3 80 0 040 4 34 0 045 4 88 0 050 5 42 0 055 5 97 0 060 6 51 0 065 7 05 0 070 7 59 0 075 8 14 0 080 8 68 0 085 9 22 0 090 9 76 0 095 10 30 0 100 10 85 0 105 11 39 0 110 11 93 0 115 12 47 0 120 13 02 0 125 13 56 0 130 14 10 0 135 14 64 0 140 15 19 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 60 27 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 60 Watt Incandescent CFL Watts 27 3 25 4 07 4 88 5 69 6 51 7 32 8 14 8 95 9 76 10 58 11 39 12 20 13 02 13 83 14 64 15 46 16 27 17 08 17 90 18 71 19 53 20 34 21 15 21 97 22 78 4 34 5 42 6 51 7 59 8 68 9 76 10 85 11 93 13 02 14 10 15 19 16 27 17 36 18 44 19 53 20 61 21 69 22 78 23 86 24 95 26 03 27 12 28 20 29 29 30 37 5 42 6 78 8 14 9 49 10 85
11. 47 33 49 31 51 28 53 25 55 22 7 9 20 11 50 13 81 16 11 18 41 20 71 23 01 25 31 27 61 29 91 32 21 34 51 36 81 39 12 41 42 43 72 46 02 48 32 50 62 52 92 55 22 57 52 59 82 62 13 64 43 Page 148 Hours On Per 0 020 2 43 0 025 3 04 0 030 3 65 0 035 4 26 0 040 4 86 0 045 5 47 0 050 6 08 0 055 6 69 0 060 7 30 0 065 7 91 0 070 8 51 0 075 9 12 0 080 9 73 0 085 10 34 0 090 10 95 0 095 11 55 0 100 12 16 0 105 12 77 0 110 13 38 0 115 13 99 0 120 14 59 0 125 15 20 0 130 15 81 0 135 16 42 0 140 17 03 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 60 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 60 Watt Incandescent CFL Watts 23 3 65 4 56 5 47 6 39 7 30 8 21 9 12 10 03 10 95 11 86 12 77 13 68 14 59 15 51 16 42 17 33 18 24 19 16 20 07 20 98 21 89 22 80 23 72 24 63 25 54 4 86 6 08 7 30 8 51 9 73 10 95 12 16 13 38 14 59 15 81 17 03 18 24 19 46 20 68 21 89 23 11 24 32 25 54 26 76 27 97 29 19 30 41 31 62 32 84 34 05 6 08 7 60 9 12 10 64 12 16 13 68 15 20 16 72 18 24 19 76 21 28 22 80 24 32 25 84 27 36 28 88 30 41 31 93 33 45 34 97 36 49 38 01 39 53 41 05
12. 48 32 50 74 53 15 55 57 57 98 60 40 62 82 65 23 67 65 Page 147 Hours On Per 0 020 2 63 0 025 3 29 0 030 3 94 0 035 4 60 0 040 5 26 0 045 5 92 0 050 6 57 0 055 7 23 0 060 7 89 0 065 8 55 0 070 9 20 0 075 9 86 0 080 10 52 0 085 11 18 0 090 11 83 0 095 12 49 0 100 13 15 0 105 13 81 0 110 14 46 0 115 15 12 0 120 15 78 0 125 16 44 0 130 17 09 0 135 17 75 0 140 18 41 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 60 20 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 60 Watt Incandescent CFL Watts 20 3 94 4 93 5 92 6 90 7 89 8 88 9 86 10 85 11 83 12 82 13 81 14 79 15 78 16 76 17 75 18 74 19 72 20 71 21 69 22 68 23 67 24 65 25 64 26 63 27 61 5 26 6 57 7 89 9 20 10 52 11 83 13 15 14 46 15 78 17 09 18 41 19 72 21 04 22 35 23 67 24 98 26 30 27 61 28 93 30 24 31 56 32 87 34 19 35 50 36 81 6 57 8 22 9 86 11 50 13 15 14 79 16 44 18 08 19 72 21 37 23 01 24 65 26 30 27 94 29 58 31 23 32 87 34 51 36 16 37 80 39 44 41 09 42 73 44 38 46 02 6 7 89 9 86 11 83 13 81 15 78 17 75 19 72 21 69 23 67 25 64 27 61 29 58 31 56 33 53 35 50 37 47 39 44 41 42 43 39 45 36
13. Sensible heat The heat required to change the temperature of a material without changing its form Sequencer A bimetal switch that turns on the elements of an electric furnace in sequence Service wires The wires coming from the utility transformer to the service equipment of the building Sheathing structural sheeting attached on top of the framing underneath siding and roofing of a building Any building material used for covering a building surface Sheetrock See drywall North Dakota Weatherization Field Standards January 2003 Page 191 12000 Glossary Shell The building s exterior envelope walls floor and roof of a building Shingle A modular roofing component installed in overlapping rows Short circuit A dangerous malfunction in an electrical circuit where electricity is flowing through conductors and into the ground without going through an electric load such as a light or motor Sill The bottom of a window or doorframe Sill box The area bounded by the rim joist floor joists sill plate and floor Site built home Includes a house built on the site from building supplies or manufactured homes assembled on the site from pieces shipped to the site on flatbed trucks Does not include mobile homes and double wides Sling psychrometer A device holding two thermometers one wet bulb and one dry bulb which is slung through the air to determine relative humidity Slope The roof section o
14. While the primary purpose of the North Dakota Weatherization Assistance Program is to reduce the energy use in low income dwellings it is necessary on occasion to make related repairs and to mitigate health and safety concerns which may not result in a decrease in energy use or result in a monetary savings Therefore as part of the North Dakota Weatherization Assistance Program the following Health and Safety Standards have been developed with the objective of providing general guidance to subgrantees and subcontractors doing work within the program All persons providing services under this program shall be governed by these standards Allowable measures under North Dakota Weatherization Health and Safety Standards will be limited to the following activities 1 Those measures which pose a direct and immediate threat to the health and or safety of clients and crews 2 Health and safety measures which result from weatherization assistance and Each home weatherized must be individually assessed to determine the existence of potential hazards to workers or clients When conditions within the home are such that the health and safety of the client crew or contractor will be jeopardized prior to providing assistance weatherization must not proceed until such problems are remedied In some cases mitigation of problems may be beyond the scope of the Weatherization Program In these instances the client must be notified in writing and referred
15. ce ceccccccsccsseesessesseeseessesecseusesnsesecusessesnecsessecnsesesussssseaecaesassaesenents 135 111213 Replacement Guidelines ccccccccccccccescessesssnsessescesecseesensecseesesuaeecsseeeeeaeeseeseeseeaeenes 138 111220 Compact Fluorescent Bulb Replacement ccc ccccceseessesecsseeeenseesceecseeeeseeneeneees 139 111221 Intr d ction sess cees cok haces ca a hole A Gan Ga ttc pelea ae 139 111222 Replacement Procedure cccccccccccsscesscesscessessecssecssecsssessecssesscesscesscesscesecssecseesseeaes 139 12000 GIOSS AMY ai ieai a AAEE EAA decee cev debates sted ees seubedeestadaeev eesteneetustanevevesncers 171 North Dakota Weatherization Field Standards January 2003 vii Introduction The North Dakota Weatherization Field Standards provide guidelines to the local administering subgrantees regarding the proper delivery of weatherization and heating system services for residential buildings The purpose of the standards is to ensure that high quality service is given at a reasonable cost and delivered uniformly throughout the state The success of this program depends upon subgrantees and contractors having a full understanding of the State s weatherization standards The Weatherization Program has changed substantially both technically and administratively since its inception almost three decades ago The Weatherization process continues to evolve in response to changes in funding weatherization technology program rules
16. 0 06 inches W G Acceptable draft values for oil fired systems are listed in Table 8 3 North Dakota Weatherization Field Standards January 2003 Page 92 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements Table 8 3 Power Oil Burners Acceptable Draft Readings Overfire and at Breech Draft Reading Location Acceptable Draft Overfire Draft 0 02 inches or 5 Pascals Vent Connector or Breech 0 04 to 0 06 or 10 to 15 Pascals 3 Measurement of heat rise across heat exchanger a Up flow furnaces i Supply side Drill a hole and insert the thermometer in the supply plenum as close as possible to the heat exchanger but out of sight of the heat exchanger this ensures that the reading will not be affected by radiant thermal energy from the heat exchanger In the furnace plenum houses a central air conditioning coil be very careful to avoid damaging this coil Drill the hole beyond the cooling coil ii Return side Drill a hole and insert the thermometer into the return plenum approximately two feet before the filter Where an integral humidifier with a cross over duct is present drill the hole before the cross over duct from the supply plenum so that the temperature is not affected by the warmer air in the cross over duct b Horizontal flow furnaces i Drill a hole and insert the thermometer in the supply plenum as close as possible to the heat exchanger but
17. 0 080 20 25 30 37 40 50 50 62 60 74 70 87 0 085 21 51 32 27 43 03 53 78 64 54 75 30 0 090 22 78 34 17 45 56 56 95 68 34 79 73 0 095 24 04 36 07 48 09 60 11 72 13 84 16 0 100 25 31 37 97 50 62 63 28 75 93 88 59 0 105 26 58 39 86 53 15 66 44 79 73 93 02 0 110 27 84 41 76 55 68 69 60 83 52 97 44 0 115 29 11 43 66 58 21 72 77 87 32 101 87 0 120 30 37 45 56 60 74 75 93 91 12 106 30 0 125 31 64 47 46 63 28 79 09 94 91 110 73 0 130 32 90 49 35 65 81 82 26 98 71 115 16 0 135 34 17 51 25 68 34 85 42 102 51 119 59 0 140 35 43 53 15 70 87 88 59 106 30 124 02 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 164 11000 Diagnostic Testing Procedures 100 27 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 100 Watt Incandescent CFL Watts 27 Hours On Per Day gt 2 3 4 5 6 7 0 020 4 80 7 20 9 60 12 00 14 40 16 80 0 025 6 00 9 00 12 00 15 00 18 00 21 00 0 030 7 20 10 80 14 40 18 00 21 60 25 20 0 035 8 40 12 60 16 80 21 00 25 20 29 39 0 040 9 60 1440 19 20 24 00 28 79 33 59 0 045 10 80 16 20 21 60 26 99 32 39 37 79 0 050 12 00 18 00 24 00 29 99 35 99 41 99 0 055 13 20 19 80 26 39 32 99 39 59 46 19 0 060 14 40 21 60 28 79 35 99 43 19 50 39 0 065 15 60 23 40 31 19 38 99 46 79 54 59 0 070 16 80 25 20 33
18. 10 52 13 15 15 78 18 41 0 055 5 79 8 68 11 57 14 46 17 36 20 25 0 060 6 31 9 47 12 62 15 78 18 93 22 09 0 065 6 84 10 26 13 67 17 09 20 51 23 93 0 070 7 36 11 04 14 73 18 41 22 09 25 77 0 075 7 89 11 83 15 78 19 72 23 67 27 61 0 080 8 41 12 62 16 83 21 04 25 24 29 45 0 085 8 94 13 41 17 88 22 35 26 82 31 29 0 090 9 47 14 20 18 93 23 67 28 40 33 13 0 095 9 99 14 99 19 99 24 98 29 98 34 97 0 100 10 52 15 78 21 04 26 30 31 56 36 81 0 105 11 04 16 57 22 09 27 61 33 13 38 66 0 110 11 57 17 36 23 14 28 93 34 71 40 50 0 115 12 10 18 14 24 19 30 24 36 29 42 34 0 120 12 62 18 93 25 24 31 56 37 87 44 18 0 125 13 15 19 72 26 30 32 87 39 44 46 02 0 130 13 67 20 51 27 35 34 19 41 02 47 86 0 135 14 20 21 30 2840 35 50 42 60 49 70 0 140 14 73 22 09 29 45 36 81 44 18 51 54 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 142 Replacement of 50 Watt Incandescent Hours On Per 0 020 1 97 0 025 2 47 0 030 2 96 0 035 3 45 0 040 3 94 0 045 4 44 0 050 4 93 0 055 5 42 0 060 5 92 0 065 6 41 0 070 6 90 0 075 7 40 0 080 7 89 0 085 8 38 0 090 8 88 0 095 9 37 0 100 9 86 0 105 10 35 0 110 10 85 0 115 11 34 0 120 11 83 0 125 12 33 0 130 12 82 0 135 13 31 0 140 13 81 Fuel Cost per KWh North Dakota Weatherization Field Standards January
19. 12 20 13 56 14 91 16 27 17 63 18 98 20 34 21 69 23 05 24 41 25 76 27 12 28 47 29 83 31 19 32 54 33 90 35 25 36 61 37 97 6 51 8 14 9 76 11 39 13 02 14 64 16 27 17 90 19 53 21 15 22 78 24 41 26 03 27 66 29 29 30 91 32 54 34 17 35 80 37 42 39 05 40 68 42 30 43 93 45 56 7 59 9 49 11 39 13 29 15 19 17 08 18 98 20 88 22 78 24 68 26 58 28 47 30 37 32 27 34 17 36 07 37 97 39 86 41 76 43 66 45 56 47 46 49 35 51 25 53 15 Page 150 Hours On Per 0 020 3 94 0 025 4 93 0 030 5 92 0 035 6 90 0 040 7 89 0 045 8 88 0 050 9 86 0 055 10 85 0 060 11 83 0 065 12 82 0 070 13 81 0 075 14 79 0 080 15 78 0 085 16 76 0 090 17 75 0 095 18 74 0 100 19 72 0 105 20 71 0 110 21 69 0 115 22 68 0 120 23 67 0 125 24 65 0 130 25 64 0 135 26 63 0 140 27 61 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 75 15 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 75 Watt Incandescent CFL Watts 15 5 92 7 40 8 88 10 35 11 83 13 31 14 79 16 27 17 75 19 23 20 71 22 19 23 67 25 15 26 63 28 10 29 58 31 06 32 54 34 02 35 50 36 98 38 46 39 94 41 42 4 7 89 9 86 11 83 13 81 15 78 17 75 19 72 21 69 23
20. 2230 Client Health and Safety 000 cceccccssessesecssesecssesecsseeseeseesessecsessecseesesaeeeseaeeseseeesesereneees 21 2240 Moisture Assessment and Repairs ccccccesccssccssecssccsecessccsseeesesscesscesecssecssecssecsseesseeses 21 2241 Assessment Of Moisture CONMAIIONS 0 ececcccecsestsceseeeeseseseesesseseesesceseceeeesececeeseeseneeaees 21 2242 Repair or Elimination of Moisture Problems ccccccccccccccescesscesscesecssecsecsseesseesseesseessens 22 2243 BI EI VENUS 6 fei ies ofa Sek eh EN sae eS re tS E ET 23 2250 Building Tightness Limits BTL cece ccesccsseeeceseeseeseeecesecseesecseesessaeeeeeaeesessecseeseeneees 23 2260 Ventilation Systems for Acceptable Indoor Air Quality ececcceeeeeeeeeeeeseneeseeseneesees 23 2261 New Systems Intermittent Operation oo ee ceeeceeseeeecseneesececeeseceeseeseeeceeeseeeeneeaees 23 2262 New Systems Continuous Operation cccccccccccecccseesseeeseeseeseetecseeeecseesessecsesaeeseeeensees 24 2263 Existing Exhaust FaNs o eeeecccccccccsssseessessenseseeceeseesecssesesseeseesseesessecaecsessseeessecsesaecaeeeeneens 25 2300 GarboniMonoxide Alarm Saisi scertisadeeitaad scemetadaenttbiaddautciad caetialacdidind Me 25 2400 Combustion Appliance Safety Testing and Repairs ccccceceeeseeeeceeeeeeeeteteeestnaeees 25 North Dakota Weatherization Field Standards January 2003 i 2410 Response to Combustion Appliance Problems 2 0 0 ccc cccccseeecsseesceseesceseeseeeeee
21. 4160 Fireplace Plugs and Equipment Covers cccccccccseseesceseescesecssesecsseeeceseesesseeseesesseesees 44 4200 Ducted Distribution Requirement 0 cccccccesecseceeeeeeeeececeaeeeeeeeeeseesecaeeeeeeeeeseeseaees 44 4210 Ductwork Inspection Cleaning ANd Sealing ec ccc ceseescesecseeeeceseeseeseeseeeeeseeeeseesees 44 4220 Ductwork Sealing Materials ccc ccccccscescesecseesecsscescsseescesecsessecsecsecsseeecsaeesesaeesesesseenees 45 4230 Ductwork INSULATION ssena a a a aa aee aaa a a E 46 4240 New Ductwork Installations c cc cccccessescesecseeeecseseceseesesseesessecsecsecsseecsaeeeesaeeseeseeseenees 47 4300 Piped Distribution Requirement cccccceceeeeeeeeeceeeeeeeeeceeeaeceeeeeeeeeesennaeeeeeeeeeseeensaees 47 4310 Steam and Hot Water Heating Distribution Pipes cece ceeeseeteeeeeeecseeteeeeees 47 4320 Domestic Hot Water PIPES ireren tes cecsces deka E RAR EE ERR 48 4330 Water Heater Blankets ccccescssescessesseecseeescsseescesesseeseesesnecsessecnseesseseessenscsesereneeeess 48 4331 Water Heater Blanket Materials ccccccccccccccesessesseeseeseeseesecssesecseeecsseessesecsessecseeeeneens 48 4332 InstallaliOnics 2220 58 Ais fs alain i Bk cena Aa Tn indonesian 48 4340 Domestic Hot Water Temperature ccc ccccccccsccssecssecssccssseseccsscescesssesecessceseessecssecseeenes 49 North Dakota Weatherization Field Standards January 2003 il 4350 Energy Saving Showerhead cc ceccc
22. 86 calculator In order to perform this calculation the following values are needed a KWh yr for existing refrigerator kWhyrOld This is estimated from 1 a 1 b or 1 c above b Annual Average Ambient Temperature AAAT This is your estimate of the annual average air temperature surrounding the refrigerator This only needs to be estimated if the refrigerator is being metered with the Brultech ECM 1200 c Present Ambient Temperature PAT This is the measured temperature around the refrigerator during the metering process Again this only needs to be estimated if the refrigerator is being metered with the Brultech ECM 1200 d KWh yr consumption of the replacement new refrigerator kWhyrNew e The electricity cost per KWh CostkWh in units of dollars For example 6 cents would be entered as 06 f The cost of the replacement refrigerator CostNew This amount must include refrigerator cost any delivery charge installation costs and disposal of the old unit American Home Appliance Manufacturers 12 The terms in parenthesis in this section are the variable names in the AREFR Equation Nugget that is part of the ZipTest Pro software package loaded into the TI 86 calculator North Dakota Weatherization Field Standards January 2003 Page 134 11000 Diagnostic Testing Procedures 111212 Testing Procedure 1 Estimate the kWh yr for the existing refrigerator Use one of the three methods below for this es
23. Building square feet Lawrence Berkeley number Occupants min of 5 Building stories Building exposure Ceiling height Based on ZipTest Pro software 11430 Calculation Procedures 1 Enter the input data into the BTL program of the ZipTest Pro software package The required input data are listed in Table 11 1 The ZipTest Pro software program BTL will guide you when you are entering the data Under no circumstance should combustion appliances be included in the BTL procedure for any reason Refer to the ZipTest Pro software instructions for examples a Climate zone Most of North Dakota is climate zone 1 The southwestern corner of the state is climate zone 2 Refer to the ZipTest Pro software instruction manual for the climate zone map b Building square feet This is the occupied square feet of the dwelling If the basement is finished and or used as living space include it in your whole house blower door test door to basement open and include the basement in the BTL square feet calculation c Occupants The minimum number of occupants you are allowed to enter is five As a guide count the number of bedrooms and add one If this is less than five enter five d Stories The exposed number of stories of the dwelling Basements below grade should not be counted The choices are 1 1 5 2 and 3 stories e Exposure The choices here are shielded normal and exposed T
24. North Dakota Weatherization Field Standards January 2003 Page 136 11000 Diagnostic Testing Procedures ahead and test the restart protection assuming that if the switch is ready to fail the unit is a candidate for replacement v Complete the installation of the Brultech ECM 1200 Follow the separate instructions for the use of the Brultech ECM 1200 meter vi Make sure to reset the ECM 1200 before you start reading the electrical consumption vii Check the initial Watt reading on your meter just after you connect it Here are some Watt consumption ranges that will give you a hint of where the refrigerator is in its cooling defrost cycle 6 10 40 Watts if door is open light bulb and or anti sweat heaters are on 7 250 400 Watts steady state if compressor is running 8 400 1000 Watts if defrost cycle is operating There is the possibility that you will meter during defrost time of an automatic defrost unit Defrosters typically draw 400 Watts or more and can dramatically increase the temperature in the freezer during operation These defrost times typically occur at the end of 16 40 hours of compressor run time and last for 10 14 minutes During the defrost time freezer temperatures can be well above freezing for more than 30 minutes If you find that you have encountered defrost run time during your metering reset the meter to eliminate the defrost time effect It is estimated that defrost ru
25. a If active knob and tube wiring is found in a dwelling attic walls or basement the walls of the dwelling must not be insulated b If knob and tube wiring has been deactivated and the dwelling has been rewired with BX Romex or other approved electrical cable the attic walls may be insulated without special precaution 5314 Treatment of Other Hazards 1 Use appropriate personal protective equipment and work practices in the presence of animal or insect hazards Ensure personal safety during work and refer to the walk away policy in Section 2212 on page 18 2 Repair any rotted broken or damaged structural components 5315 Defining the Thermal Boundary 1 If the basement or crawlspace houses a heating system and other appliance it should be treated as a conditioned area In this case the most common the basement or crawlspace walls are part of the boundary of the conditioned envelope Therefore it is preferred to air seal and insulate the basement or crawlspace walls because this strategy encloses the furnace ducts pipes water heater and other appliances within the conditioned envelope North Dakota Weatherization Field Standards January 2003 Page 62 5000 Insulation Requirements 5300 Foundation Insulation 2 Basements and crawlspaces should be tested using zonal pressure diagnostics when the housing construction type or the air leakage rate indicates that there may be hidden air leakage or bypass pathways int
26. dangerous over firing of the burners results Although this is not a common occurrence each range should be checked Natural gas piped to a range setup for propane is not as hazardous because it results in under firing a Ifa range is setup for natural gas but has propane piped to it it will be over firing probably creating unacceptable levels of CO A gas range in this condition must not be used until the problem is corrected Symptoms of this problem include noisy flames yellow flames large flames rising above the cooking vessel support grates on the range top burners carbon smoke emissions or unacceptable carbon monoxide emissions b If a range is setup for propane but has natural gas piped to it it will be under firing In this case the client might complain of the long period required to boil water or the amount of time required for baking This condition is usually not hazardous but it should be corrected c Methods for verifying supply gas type and range setup i Client interview 1 Ask client about the history of the gas range Is it new ls it a recently acquired used range If so do they know where it was obtained The client s answers might indicate the gas for which the range was setup at its last location 2 Ask client if they have noticed any flame irregularities Flames too big yellow or noisy Flames very small cooking or baking taking too long ii Flame inspection 1 Range top burner flames should
27. or has combustion appliances that are all sealed combustion direct vent a worst case draft test does not have to be performed In apartments with no combustion appliances other than unvented or direct vent combustion appliances a worst case draft test does not have to be performed 11730 Test Procedure Worst case is defined as the configuration of the house that results in the greatest negative pressure in the combustion appliance zone 1 Boao 2 a b Consideration must be given to the following The types and locations of the heating systems The location and strength of all exhausting equipment bath fans dryers kitchen exhaust devices etc The location of wood stoves fireplaces and water heaters The volume of the area where the combustion devices are located e The location of the forced air system returns Place the building in the wintertime condition with all windows and exterior doors closed If it is not practical to close or install existing storm windows latch or lock primary window units If the blower door is setup make sure the fan is closed off Record the outdoor temperature on the Worst Case Draft Test form for this test refer to page 111 Other information should also be recorded on this form during the test procedure Deactivate all combustion appliances by turning them off or setting the control to pilot Close all operable vents for example a fireplace damper If there is a fur
28. starting CFMs measurement is below the calculated building tightness limit except for the following Ductwork sealing Insulation preparation work Major repairs Air sealing work that is necessary to block moisture migration into ceilings and walls Air leakage installations that are done to address client comfort for example storm window near reading chair jamb weatherstrip kit on door near reading chair etc must have a brief explanation documented in the client file Snap fasteners and or weatherstripping shall be used whenever possible to reduce air leakage and or to stop water from entering primary windows Major air leakage problems around single pane windows that cannot be eliminated with sidewall insulation or snap fasteners shall have an interior storm window installed or the window replaced whichever is most cost effective It is recommended that caulking be done around all interior casing when there is an interior storm window When accessible the joint between the two sections of a double wide must be filled and sealed from underneath the structure Large holes in water heater closets with an exterior wall must be sealed with care taken not to seal off combustion air from the outside North Dakota Weatherization Field Standards January 2003 Page 74 7300 7400 11 12 13 7000 Mobile Home Requirements 7400 Ceiling Insulation Insulation General Insulation shall be installed only in ar
29. the draft problem must be corrected even it the CAZ pressure is within normal range North Dakota Weatherization Field Standards January 2003 Page 113 20 21 22 11000 Diagnostic Testing Procedures If more than one appliance is located in the zone fire the combustion appliance with the lowest Btu output first Measure the draft at the appliance The draft for atmospheric gas appliances or power oil burners should comply with the appropriate Table 11 6 or Table 11 7 Shut down the appliance Fire all remaining appliances one at a time in order of output smaller to larger testing each one for draft If the appliances vent into the same chimney or vent connector test each one individually If the appliances vent into different chimneys or vents test with each successive unit running All appliances must achieve acceptable draft within two minutes of firing If draft is unacceptable correct the problem with one of the following listed in order of preference Check for vent system blockage and correct if found b Increase CAZ air volume by connecting CAZ to other conditioned areas see NFPA 54 Duct outdoor air directly to the combustion supply air port of burner s or Increase CAZ air volume by connecting CAZ to outdoors see NFPA 23 If the dwelling has other combustion appliance zones repeat the sequence of activating exhaust equipment door closure furnace blower activation and recording pressure
30. 045 6 21 0 050 6 90 0 055 7 59 0 060 8 28 0 065 8 97 0 070 9 66 0 075 10 35 0 080 11 04 0 085 11 73 0 090 12 43 0 095 13 12 0 100 13 81 0 105 14 50 0 110 15 19 0 115 15 88 0 120 16 57 0 125 17 26 0 130 17 95 0 135 18 64 0 140 19 33 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 60 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 60 Watt Incandescent CFL Watts 18 4 14 5 18 6 21 7 25 8 28 9 32 10 35 11 39 12 43 13 46 14 50 15 53 16 57 17 60 18 64 19 67 20 71 21 74 22 78 23 81 24 85 25 89 26 92 27 96 28 99 5 52 6 90 8 28 9 66 11 04 12 43 13 81 15 19 16 57 17 95 19 33 20 71 22 09 23 47 24 85 26 23 27 61 28 99 30 37 31 75 33 13 34 51 35 89 37 28 38 66 5 6 90 8 63 10 35 12 08 13 81 15 53 17 26 18 98 20 71 22 43 24 16 25 89 27 61 29 34 31 06 32 79 34 51 36 24 37 97 39 69 41 42 43 14 44 87 46 59 48 32 6 8 28 10 35 12 43 14 50 16 57 18 64 20 71 22 78 24 85 26 92 28 99 31 06 33 13 35 20 37 28 39 35 41 42 43 49 45 56 47 63 49 70 51 77 53 84 55 91 57 98 7 9 66 12 08 14 50 16 91 19 33 21 74 24 16 26 58 28 99 31 41 33 82 36 24 38 66 41 07 43 49 45 90
31. 080 12 62 0 085 13 41 0 090 14 20 0 095 14 99 0 100 15 78 0 105 16 57 0 110 17 36 0 115 18 14 0 120 18 93 0 125 19 72 0 130 20 51 0 135 21 30 0 140 22 09 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 75 27 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 75 Watt Incandescent CFL Watts 27 4 73 5 92 7 10 8 28 9 47 10 65 11 83 13 02 14 20 15 38 16 57 17 75 18 93 20 12 21 30 22 48 23 67 24 85 26 03 27 22 28 40 29 58 30 77 31 95 33 13 6 31 7 89 9 47 11 04 12 62 14 20 15 78 17 36 18 93 20 51 22 09 23 67 25 24 26 82 28 40 29 98 31 56 33 13 34 71 36 29 37 87 39 44 41 02 42 60 44 18 5 7 89 9 86 11 83 13 81 15 78 17 75 19 72 21 69 23 67 25 64 27 61 29 58 31 56 33 53 35 50 37 47 39 44 41 42 43 39 45 36 47 33 49 31 51 28 53 25 55 22 6 9 47 11 83 14 20 16 57 18 93 21 30 23 67 26 03 28 40 30 77 33 13 35 50 37 87 40 23 42 60 44 97 47 33 49 70 52 07 54 43 56 80 59 17 61 53 63 90 66 27 7 11 04 13 81 16 57 19 33 22 09 24 85 27 61 30 37 33 13 35 89 38 66 41 42 44 18 46 94 49 70 52 46 55 22 57 98 60 74 63 51 66 27 69 03 71 79 74 55 77 31 Page 155 11000 Diagno
32. 09 25 64 3419 42 73 51 28 59 82 0 045 19 23 28 84 38 46 48 07 57 69 67 30 0 050 21 37 32 05 42 73 53 41 64 10 74 78 0 055 23 50 35 25 47 00 58 76 70 51 82 26 0 060 25 64 38 46 51 28 64 10 76 92 89 74 0 065 27 78 41 66 55 55 69 44 83 33 97 21 0 070 29 91 44 87 59 82 74 78 89 74 104 69 0 075 32 05 48 07 6410 80 12 96 15 112 17 0 080 34 19 51 28 68 37 85 46 102 56 119 65 0 085 36 32 54 48 72 64 90 80 108 97 127 13 0 090 38 46 57 69 76 92 96 15 115 38 134 60 0 095 40 59 60 89 81 19 101 49 121 78 142 08 0 100 42 73 64 10 85 46 106 83 128 19 149 56 0 105 44 87 67 30 89 74 112 17 134 60 157 04 0 110 47 00 70 51 94 01 117 51 141 01 164 52 0 115 49 14 73 71 98 28 122 85 147 42 171 99 0 120 51 28 76 92 102 56 128 19 153 83 179 47 0 125 53 41 80 12 106 83 133 54 160 24 186 95 0 130 55 55 83 33 111 10 138 88 166 65 194 43 0 135 57 69 86 53 115 38 144 22 173 06 201 91 0 140 59 82 89 74 119 65 149 56 179 47 209 38 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 168 11000 Diagnostic Testing Procedures 150 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 150 Watt Incandescent CFL Watts 23 Hours On Per Day gt 2 3 4 5 6 7 0 020 8 35 12 52 16 70 20 87 25 05 29 22 0 025 10 44 15 65 20 87 26 09 31 31 3
33. 140 23 93 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 75 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 75 Watt Incandescent CFL Watts 23 5 13 6 41 7 69 8 97 10 26 11 54 12 82 14 10 15 38 16 67 17 95 19 23 20 51 21 79 23 08 24 36 25 64 26 92 28 20 29 48 30 77 32 05 33 33 34 61 35 89 4 6 84 8 55 10 26 11 96 13 67 15 38 17 09 18 80 20 51 22 22 23 93 25 64 27 35 29 06 30 77 32 48 34 19 35 89 37 60 39 31 41 02 42 73 44 44 46 15 47 86 5 8 55 10 68 12 82 14 96 17 09 19 23 21 37 23 50 25 64 27 78 29 91 32 05 34 19 36 32 38 46 40 59 42 73 44 87 47 00 49 14 51 28 53 41 55 55 57 69 59 82 6 10 26 12 82 15 38 17 95 20 51 23 08 25 64 28 20 30 77 33 33 35 89 38 46 41 02 43 59 46 15 48 71 51 28 53 84 56 41 58 97 61 53 64 10 66 66 69 23 71 79 7 11 96 14 96 17 95 20 94 23 93 26 92 29 91 32 90 35 89 38 89 41 88 44 87 47 86 50 85 53 84 56 83 59 82 62 82 65 81 68 80 71 79 74 78 77 77 80 76 83 75 Page 154 Hours On Per 0 020 3 16 0 025 3 94 0 030 4 73 0 035 5 52 0 040 6 31 0 045 7 10 0 050 7 89 0 055 8 68 0 060 9 47 0 065 10 26 0 070 11 04 0 075 11 83 0
34. 21 08 22 48 23 89 25 29 26 70 28 10 29 51 30 91 32 32 33 73 35 13 36 54 37 94 39 35 4 7 49 9 37 11 24 13 12 14 99 16 86 18 74 20 61 22 48 24 36 26 23 28 10 29 98 31 85 33 73 35 60 37 47 39 35 41 22 43 09 44 97 46 84 48 71 50 59 52 46 5 9 37 11 71 14 05 16 39 18 74 21 08 23 42 25 76 28 10 30 45 32 79 35 13 37 47 39 81 42 16 44 50 46 84 49 18 51 52 53 87 56 21 58 55 60 89 63 23 65 58 6 11 24 14 05 16 86 19 67 22 48 25 29 28 10 30 91 33 73 36 54 39 35 42 16 44 97 47 78 50 59 53 40 56 21 59 02 61 83 64 64 67 45 70 26 73 07 75 88 78 69 7 13 12 16 39 19 67 22 95 26 23 29 51 32 79 36 07 39 35 42 62 45 90 49 18 52 46 55 74 59 02 62 30 65 58 68 86 72 13 75 41 78 69 81 97 85 25 88 53 91 81 Page 152 Hours On Per 0 020 3 62 0 025 4 52 0 030 5 42 0 035 6 33 0 040 7 23 0 045 8 14 0 050 9 04 0 055 9 94 0 060 10 85 0 065 11 75 0 070 12 66 0 075 13 56 0 080 14 46 0 085 15 37 0 090 16 27 0 095 17 17 0 100 18 08 0 105 18 98 0 110 19 89 0 115 20 79 0 120 21 69 0 125 22 60 0 130 23 50 0 135 24 41 0 140 25 31 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 75 20 Threshold Cost of a Replacement CFL Yield
35. 50 14 38 17 26 20 13 0 055 6 33 9 49 12 66 15 82 18 98 22 15 0 060 6 90 10 35 13 81 17 26 20 71 24 16 0 065 7 48 11 22 14 96 18 70 22 43 26 17 0 070 8 05 12 08 16 11 20 13 24 16 28 19 0 075 8 63 12 94 17 26 21 57 25 89 30 20 0 080 9 20 13 81 18 41 23 01 27 61 32 21 0 085 9 78 14 67 19 56 24 45 29 34 34 23 0 090 10 35 15 53 20 71 25 89 31 06 36 24 0 095 10 93 16 39 21 86 27 32 32 79 38 25 0 100 11 50 17 26 23 01 28 76 34 51 40 27 0 105 12 08 18 12 24 16 30 20 36 24 42 28 0 110 12 66 18 98 25 31 31 64 37 97 44 29 0 115 13 23 19 85 26 46 33 08 39 69 46 31 0 120 13 81 20 71 27 61 34 51 41 42 48 32 0 125 14 38 21 57 28 76 35 95 43 14 50 33 0 130 14 96 22 43 29 91 37 39 44 87 52 35 0 135 15 53 23 30 31 06 38 83 46 59 54 36 0 140 16 11 24 16 32 21 40 27 48 32 56 37 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 141 11000 Diagnostic Testing Procedures 50 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 50 Watt Incandescent CFL Watts 18 Hours On Per 0 020 2 10 3 16 4 21 5 26 6 31 7 36 0 025 2 63 3 94 5 26 6 57 7 89 9 20 0 030 3 16 4 73 6 31 7 89 9 47 11 04 0 035 3 68 5 52 7 36 9 20 11 04 12 89 0 040 4 21 6 31 8 41 10 52 12 62 14 73 0 045 4 73 7 10 9 47 11 83 14 20 16 57 0 050 5 26 7 89
36. 54 24 65 08 75 93 0 055 23 86 35 80 47 73 59 66 71 59 83 52 0 060 26 03 39 05 52 07 65 08 78 10 91 12 0 065 28 20 42 30 56 41 70 51 84 61 98 71 0 070 30 37 45 56 60 74 75 93 91 12 106 30 0 075 32 54 48 81 65 08 81 35 97 63 113 90 0 080 34 71 52 07 69 42 86 78 104 13 121 49 0 085 36 88 55 32 73 76 92 20 110 64 129 08 0 090 39 05 58 58 78 10 97 63 117 15 136 68 0 095 41 22 61 83 82 44 103 05 123 66 144 27 0 100 43 39 65 08 86 78 108 47 130 17 151 86 0 105 45 56 68 34 91 12 113 90 136 68 159 45 0 110 47 73 71 59 95 46 119 32 143 18 167 05 0 115 49 90 74 85 99 79 124 74 149 69 174 64 0 120 52 07 78 10 104 13 130 17 156 20 182 23 0 125 54 24 81 35 108 47 135 59 162 71 189 83 0 130 56 41 84 61 112 81 141 01 169 22 197 42 0 135 58 58 87 86 117 15 146 44 175 73 205 01 0 140 60 74 91 12 121 49 151 86 182 23 212 61 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 167 11000 Diagnostic Testing Procedures 150 20 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 150 Watt Incandescent CFL Watts 20 Hours On Per Day gt 2 3 4 5 6 7 0 020 8 55 12 82 17 09 21 37 25 64 29 91 0 025 10 68 16 02 21 37 26 71 32 05 37 39 0 030 12 82 19 23 25 64 32 05 38 46 44 87 0 035 14 96 22 43 29 91 37 39 44 87 52 35 0 040 17
37. 55 88 67 06 78 23 0 090 23 67 35 50 47 33 59 17 71 00 82 83 0 095 24 98 37 47 49 96 62 45 74 94 87 44 0 100 26 30 39 44 52 59 65 74 78 89 92 04 0 105 27 61 41 42 55 22 69 03 82 83 96 64 0 110 28 93 43 39 57 85 72 31 86 78 101 24 0 115 30 24 45 36 60 48 75 60 90 72 105 84 0 120 31 56 47 33 63 11 78 89 9467 110 44 0 125 32 87 49 31 65 74 82 18 98 61 115 05 0 130 34 19 51 28 68 37 85 46 102 56 119 65 0 135 35 50 53 25 71 00 88 75 106 50 124 25 0 140 36 81 55 22 73 63 92 04 110 44 128 85 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 163 11000 Diagnostic Testing Procedures 100 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 100 Watt Incandescent CFL Watts 23 Hours On Per Day gt 2 3 4 5 6 7 0 020 5 06 7 59 10 12 12 66 15 19 17 72 0 025 6 33 9 49 12 66 15 82 18 98 22 15 0 030 7 59 11 39 15 19 18 98 22 78 26 58 0 035 8 86 13 29 17 72 22 15 26 58 31 01 0 040 10 12 15 19 20 25 25 31 30 37 35 43 0 045 11 39 17 08 22 78 28 47 34 17 39 86 0 050 12 66 18 98 25 31 31 64 37 97 44 29 0 055 13 92 20 88 27 84 34 80 41 76 48 72 0 060 15 19 22 78 30 37 37 97 45 56 53 15 0 065 16 45 24 68 32 90 41 13 49 35 57 58 0 070 17 72 26 58 35 43 44 29 53 15 62 01 0 075 18 98 28 47 37 97 47 46 56 95 66 44
38. 59 41 99 50 39 58 79 0 075 18 00 26 99 35 99 44 99 53 99 62 99 0 080 19 20 28 79 38 39 47 99 57 59 67 19 0 085 20 40 30 59 40 79 50 99 61 19 71 39 0 090 21 60 32 39 43 19 53 99 64 79 75 59 0 095 22 80 34 19 45 59 56 99 68 39 79 78 0 100 24 00 35 99 47 99 59 99 71 99 83 98 0 105 25 20 37 79 50 39 62 99 75 59 88 18 0 110 26 39 39 59 52 79 65 99 79 18 92 38 0 115 27 59 41 39 55 19 68 99 82 78 96 58 0 120 28 79 43 19 57 59 71 99 86 38 100 78 0 125 29 99 4499 59 99 74 99 89 98 104 98 0 130 31 19 46 79 62 39 77 99 93 58 109 18 0 135 32 39 48 59 64 79 80 98 97 18 113 38 0 140 33 59 50 39 67 19 83 98 100 78 117 58 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 165 11000 Diagnostic Testing Procedures 150 15 Threshold Cost of a Replacement CFL Yielding a Savings to lnvestment Ratio of 1 Replacement of 150 Watt Incandescent CFL Watts 15 Hours On Per Day gt 2 3 4 5 6 7 0 020 8 88 13 31 17 75 22 19 26 63 31 06 0 025 11 09 16 64 2219 27 73 33 28 38 83 0 030 13 31 19 97 26 63 33 28 39 94 46 59 0 035 15 53 23 30 31 06 38 83 4659 54 36 0 040 17 75 26 63 35 50 44 38 53 25 62 13 0 045 19 97 29 95 39 94 49 92 59 91 69 89 0 050 22 19 33 28 4438 55 47 66 56 77 66 0 055 24 41 36 61 48 81 61 02 73 22 85 42 0 060 26 63 39 94 53 25 66 56 79 88 93 1
39. 67 25 64 27 61 29 58 31 56 33 53 35 50 37 47 39 44 41 42 43 39 45 36 47 33 49 31 51 28 53 25 55 22 5 9 86 12 33 14 79 17 26 19 72 22 19 24 65 27 12 29 58 32 05 34 51 36 98 39 44 41 91 44 38 46 84 49 31 51 77 54 24 56 70 59 17 61 63 64 10 66 56 69 03 6 11 83 14 79 17 75 20 71 23 67 26 63 29 58 32 54 35 50 38 46 41 42 44 38 47 33 50 29 53 25 56 21 59 17 62 13 65 08 68 04 71 00 73 96 76 92 79 88 82 83 7 13 81 17 26 20 71 24 16 27 61 31 06 34 51 37 97 41 42 44 87 48 32 51 77 55 22 58 67 62 13 65 58 69 03 72 48 75 93 79 38 82 83 86 28 89 74 93 19 96 64 Page 151 Hours On Per 0 020 3 75 0 025 4 68 0 030 5 62 0 035 6 56 0 040 7 49 0 045 8 43 0 050 9 37 0 055 10 30 0 060 11 24 0 065 12 18 0 070 13 12 0 075 14 05 0 080 14 99 0 085 15 93 0 090 16 86 0 095 17 80 0 100 18 74 0 105 19 67 0 110 20 61 0 115 21 55 0 120 22 48 0 125 23 42 0 130 24 36 0 135 25 29 0 140 26 23 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 75 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 75 Watt Incandescent CFL Watts 18 5 62 7 03 8 43 9 84 11 24 12 65 14 05 15 46 16 86 18 27 19 67
40. 7 Repeat the pressure measurement from the main body of the house with reference to the outdoors a If this pressure is different than it was when all the interior doors were open the interior doors are acting as dampers to the air distribution system This can cause thermal discomfort and stuffiness in the room and it can increase the air leakage of the dwelling when the air handler is running 8 Take the pressure gauge being careful to level and zero on 15 Pa when using a magnehelic gauge and measure the pressure difference across all interior doors Pressure test and record measurements for all rooms with reference to the main body of the house Make sure that registers and grilles are not blocked even though they appear open Provide pressure relief to any room with readings greater than 3 Pascals by b Opening the door slightly while measuring the pressure difference across the door Open the door until the pressure difference is less than 3 Pascals and measure the square inches of opening This is the number of square inches i The door must be undercut this usually works well in mobile homes ii A direct grille offset grilles or jump duct must be to properly relief the pressure imbalance caused by the distribution system when the door is closed 9 Turn off air handler and return house to the condition it was in before testing began 11900 Duct Leakage Testing 11910 Introduction Duct leakage can lead to many probl
41. 76 1000 Fl rBelly Insulator anirno are Be ee 77 7610 Floor Insulation REquireMent cccccccccssesscesscesscesecssecssccssecssecseecseseseeeesessessseseesecnaees 77 North Dakota Weatherization Field Standards January 2003 iv 7620 Floor Insulation Methods cc ccc ceccccccccescccssecesssccssecesssccssecessscessecesssecssecesssecssecesseeseeeens 78 7700 Mobile Home Belly Return Conversion 0 cece eeeeeeee sence ee enneeeeeteeeeeeeieeeeeeneeeereaa 79 FINO MPODU CON wscecccsscetsetecrtissicnctacseeetecetasctacectectususeactatacdeedaadaciceascetesees duceatetdewliesdivestetatenisesdsebsets 79 T20 Konversion PrOCESS ariran iier n e desea cute cUeceeddatacaudeaveteddacnstetecdetgeidsiacetedtentietdsenieds 79 7800 Sidewall INSUlatON sra nena oh lila viele wat alae ered ie 80 7810 Sidewall Insulation Requirements ccc ccccesceseceecesecseessecssecsescseseeseessessesssesscesecnaees 80 7820 Sidewall Insulation Methods eee eeseescseeseescseeseeecseeseecneeseecneeseeeeneeseeecneeseeecneeaeeeeneeaees 81 7900 Water Pipe Insulation 0 cceceeeccsccce cece ee eeee ee aece cece ee seceaeaeceeeeeeesgaaeaaeeeeeeeeeseeseciaeeeeeess 81 71000 Water Heater Closets ac 0 35 sae es cessed ish eee iar ed eared 82 71100 Combustion System sssr ensinda ii annei ari eens nn eine 82 8000 Combustion Appliances and Air Conditioners 2 cccccceesseeeeeeceeeeeseeseeseeeeeeeeeees 83 8100 Combustion Appl
42. 97 79 0 105 29 34 44 01 58 67 73 34 88 01 102 68 0 110 30 73 46 10 61 47 76 83 92 20 107 57 0 115 32 13 48 20 64 26 80 33 96 39 112 46 0 120 33 53 50 29 67 06 83 82 100 58 117 35 0 125 34 92 52 39 69 85 87 31 104 77 122 24 0 130 36 32 54 48 72 64 90 80 108 97 127 13 0 135 37 72 56 58 75 44 94 30 113 16 132 02 0 140 39 12 58 67 78 23 97 79 117 35 136 91 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 161 11000 Diagnostic Testing Procedures 100 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 100 Watt Incandescent CFL Watts 18 Hours On Per Day gt 2 3 4 5 6 7 0 020 5 39 8 09 10 78 13 48 16 17 18 87 0 025 6 74 10 11 13 48 16 85 20 22 23 58 0 030 8 09 12 13 16 17 20 22 24 26 28 30 0 035 9 43 14 15 18 87 23 58 28 30 33 02 0 040 10 78 16 17 21 56 26 95 32 34 37 74 0 045 12 13 18 19 24 26 30 32 36 39 42 45 0 050 13 48 20 22 26 95 33 69 40 43 47 17 0 055 14 82 22 24 29 65 37 06 44 47 51 89 0 060 16 17 24 26 32 34 40 43 48 52 56 60 0 065 17 52 26 28 35 04 43 80 52 56 61 32 0 070 18 87 28 30 37 74 47 17 56 60 66 04 0 075 20 22 30 32 40 43 50 54 60 65 70 75 0 080 21 56 32 34 43 13 53 91 64 69 75 47 0 085 22 91 34 37 45 82 57 28 68 73 80 19 0 090 24 26 36 39 48 52 60 65 72 78 84 90 0 095
43. DOE for WAP Used to audit mobile homes Masonry Construction of stone brick or concrete block Mastic A thick creamy substance used to seal seams and cracks in building materials and especially useful on ductwork North Dakota Weatherization Field Standards January 2003 Page 186 12000 Glossary MSDS Materials Safety Data Sheet Metabolic process Chemical and physiological activities in the human body Mitigate To make less severe Mortar A mixture of sand water and cement used to bond bricks stones or blocks together _N NBS The National Bureau of Standards Department of Commerce renamed the National Institute of Standards and Technology NIST NEMA National Electrical Manufacturers Association NEAT National Energy AudiT developed by DOE for WAP Used to audit single family and low rise multi family buildings NFPA National Fire Protection Association NWMA National Woodwork Manufacturers Association Net Free Vent Area NFVA The area of a vent after that area has been adjusted for the restrictions caused by insect screen louvers and weather coverings The free area is always less than the actual area Natural ventilation Ventilation using only natural air movement without fans or other mechanical devices Non conditioned space An area within the building envelope that is not heated or cooled and tends to be the same temperature as outside Nozzle An orifice designed to
44. Standards January 2003 Page 3 1000 Administrative Scope and General Requirements 1500 Monitoring by State 4 Inspection visits may focus on problem areas identified in previous inspection reports to ensure that problems have been corrected 5 Recommended actions may be issued to subgrantee based on observations during these visits and such guidance will be noted on a report provided to the subgrantee 6 Ifa measure or repair installed under WAP is not in compliance with the WAP Standards and a Field Standards waiver has not been issued the expenditures for that measure might not be allowed 7 Deficiencies noted during State monitoring that result in Major Findings or repeated Minor Findings may be considered as justification for requiring that the subgrantee re inspect dwellings Please refer to Section 1540 on page 4 for the details of Major and Minor Findings 1520 Appeals Process for Inspection Reports 1 Asubgrantee representative may appeal the findings of the monitoring inspection report to the WAP Program Administrator This appeal should be sent in writing within ten working days of receipt of the inspection report 2 Asubgrantee that does not agree with the initial outcome of the inspection report appeal may submit a subsequent appeal to the Director of the Division of Community Services 1530 High Risk Status 1 The occurrence of a substantial number of or repeated Major Findings may result in a decision by the
45. These Standards were reviewed and discussed over a three day period with the participation of Howard Sage weatherization program coordinators estimators foremen and crew members All contributed to the quality of these Standards Table of Contents 1000 Administrative Scope and General Requirements ccccceseeeeeeeeeceeeeeeeeeeeseanee 2 T100 Effective Date cc cis saccsavas 28 etacdenaiasthhdadaavactoen a aa a aaaea 2 1200 SCOPES otal deece reat tae A dere a tele ela eat tas od A teas alah ade Sata al Hal 2 13002 ENfOrceMments ic2 tec eer eee eth el eae hace onthe eel aeae ae aoe ee Re ce A 3 1400 Amendments to Program Field Standards 0 cccceecceeceeeeseeeeeeeneeeeseenneeeeeeesaeeeeseseeeeseaas 3 1500 Monitoring by State i steed needa i adie ae eee 3 1510 General Procedure asenin irri R AE TE RT EEEE ERRi 3 1520 Appeals Process for Inspection Reports c cc ecccccesscssecssecssecssecsseeseseseeesseessesscessceseeeaees 4 1580 Hig RisSkStatUS nen nii E E OA E bate ieee 4 1540 DCS WAP Evaluation System ccc cccccccseessssscseesecseeeeceeescsseesessecseesecssesecsaseseaecsessesseeaeenes 4 t941 Major Finding S e a e n a a a ee a ae aiara Ten a aaa E E aia iann 4 1542 Minor F AgS e e e n a Ga odes da ooh E ages Ue 5 1600 General Auditing and Weatherization Requirements sssseseseissesrrsssrerreserresrrresrrrreseee 5 1610 Required Unit File Documentation s ssnsessensesensse
46. WAP Administrator that a subgrantee be placed on high risk status Please see Section 1541 below for an explanation of Major Findings 2 If asubgrantee is placed on high risk status it is likely that special conditions will be placed upon the subgrantee financial assistance award until compliance with WAP Standards is met 1540 DCS WAP Evaluation System 1541 Major Findings 1 Any of the following criteria generally constitutes a Major Finding a The health and safety of clients subgrantee staff and subgrantee subcontractors or the integrity of the building structure is threatened by work completed with WAP funds b A health or safety problem is created by exacerbated by or not corrected by the delivery of WAP services c The omission of a required measure or technique with major energy savings potential as determined by WXEOR or a required procedure that addresses health and safety concerns North Dakota Weatherization Field Standards January 2003 Page 4 Se 1000 Administrative Scope and General Requirements 1600 General Auditing and Weatherization Requirements Poor quality of work that significantly affects the performance of measures or repairs Expenditure of WAP funds on measures that are not approved under WAP or required for health or safety reasons Major expenditure of funds on measures that do not yield an acceptable savings to investment ratio as defined in these standards Any action or
47. Weatherization Field Standards January 2003 Page 156 11000 Diagnostic Testing Procedures 90 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 90 Watt Incandescent CFL Watts 18 Hours On Per Day gt 2 3 4 5 6 7 0 020 4 73 7 10 9 47 11 83 14 20 16 57 0 025 5 92 8 88 11 83 14 79 17 75 20 71 0 030 7 10 10 65 14 20 17 75 21 30 24 85 0 035 8 28 12 43 16 57 20 71 24 85 28 99 0 040 9 47 14 20 18 93 23 67 28 40 33 13 0 045 10 65 15 98 21 30 26 63 31 95 37 28 0 050 11 83 17 75 23 67 29 58 35 50 41 42 0 055 13 02 19 53 26 03 32 54 39 05 45 56 0 060 14 20 21 30 28 40 35 50 42 60 49 70 0 065 15 38 23 08 30 77 38 46 46 15 53 84 0 070 16 57 24 85 33 13 41 42 49 70 57 98 0 075 17 75 26 63 35 50 44 38 53 25 62 13 0 080 18 93 28 40 37 87 47 33 56 80 66 27 0 085 20 12 30 18 40 23 50 29 60 35 70 41 0 090 21 30 31 95 4260 53 25 63 90 74 55 0 095 22 48 33 73 44 97 56 21 67 45 78 69 0 100 23 67 35 50 47 33 59 17 71 00 82 83 0 105 24 85 37 28 49 70 62 13 74 55 86 98 0 110 26 03 39 05 52 07 65 08 78 10 91 12 0 115 27 22 40 83 54 43 68 04 81 65 95 26 0 120 28 40 42 60 56 80 71 00 85 20 99 40 0 125 29 58 44 38 59 17 73 96 88 75 103 54 0 130 30 77 46 15 61 53 76 92 92 30 107 68 0 135 31 95 47 93 63 90 79 88 95 85 111 83 0 140 33 13 49 7
48. a living area and adequate clearance exists 6 A fire rated material such as at least 26 gauge galvanized tin must be used to seal gaps around heat sources such as masonry or metal chimneys This fire rated material must be sealed with high temperature caulking to the chimney and to surrounding framing and finish materials a Unfaced fiberglass insulation of at least 3 inches in thickness must be used to wrap the chimney above this fire rated material This fiberglass serves as a fire shield for cellulose installed against the fiberglass b If an existing chimney or flue is treated incorrectly correct it to comply with these standards If it is not reasonable to bring a chimney up to these standards document this fact in the client file and include photographs 7 Requirements for furnaces installed in attics a Attic furnace blocking must be installed to ensure a minimum free air clearance of 18 inches but not more than 24 inches b If a working platform is present for an attic furnace or if one is installed by the subgrantee 30 inches of clearance adjacent to the furnace controls must be provided c Attic furnaces must be checked after adding attic insulation to ensure they are free of insulation and operate properly 5120 Installation Methods for Attic Insulation 1 Locate and seal attic thermal bypasses chases and open topped partition walls Properly treat ceiling height changes and stairwells as necessary to
49. across the exchangers and into the living space Air infiltration barrier A spun polymer sheet for example house wrap that stops almost all the air traveling through a building cavity while allowing moisture to pass through it Altitude Adjustment When a gas appliance is installed more than 2000 feet above sea level its input rating must be reduced by approximately four percent per 1000 feet above sea level North Dakota Weatherization Field Standards January 2003 Page 171 12000 Glossary AFUE Annual Fuel Utilization Efficiency A laboratory derived efficiency for heating appliances which accounts for chimney losses jacket losses and cycling losses but not distribution losses or fan pump energy AAMA Architectural Aluminum Manufacturers Association Asbestos A fibrous mineral with fireproof and insulation characteristics which may be shaped into a variety of building materials Small sharp asbestos fibers may cause damage to lungs if they are inhaled Ambient air Air in the living space ANSI American National Standards Institute Inc ASHRAE American Society of Heating Refrigerating and Air Conditioning Engineers Inc ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials Ampere A unit of measurement that tells how much electricity flows through a conductor It is like cubic feet per second to measure the flow of water For exampl
50. any rotted broken or damaged structural components Ensure that the finished wall material will safely withstand the North Dakota Weatherization Field Standards January 2003 Page 57 5000 Insulation Requirements 5200 Sidewall Insulation pressure of the insulation Repair or replace any weakened damaged or missing interior wall surface 4 Setup ladders in a safe manner using ladder levelers or other safety devices to compensate for yard inclines or other physical obstructions to safe ladder use 5214 Interior Inspection and Repairs 1 Repair or replace weak or damaged drywall or lath and plaster sections Locate any interior areas of paneling with no sub wall surface or that are not securely fastened Determine an insulation strategy which will not damage the paneling Repair or replace damaged or missing baseboard casing jambs etc that may allow insulation to escape from the wall cavity Holes drilled for insulation must be finished and returned to a condition as close to the original as possible 2 Locate the positions of all wall mounted switches and outlets before beginning insulation work Locate all chases utility runs duct runs wall heaters vent fan penetrations etc prior to insulating Block around these areas if possible If it is not possible to block around an area avoid that area when insulating 3 Find any interior soffit areas pocket doors or other structural details which may need preparation pri
51. appear normal on the high setting in size color and sound If the flames appear over fired or under fired it is likely that there is a setup gas supply mismatch iii Determine gas type piped to gas range North Dakota Weatherization Field Standards January 2003 Page 129 11000 Diagnostic Testing Procedures 1 Ask client Verify by checking for natural gas meter or propane tank and corresponding piping to the appliance d If it is determined that the range setup gas does not match the supply gas the client must not use the range until the mismatch is corrected Check for flexible connector If the flexible gas connector can be inspected without moving the range or if the range is moved out for replacement make sure the flexible connector is 1 not brass 2 is not a two piece connector and 3 has no pre 1973 rings in some cases the date can be found on the flare nuts rather than the date rings Do not move the range for the sole purpose of inspecting the flexible connector this movement might crack or otherwise damage it Check for gas leaks at the range top burner area oven area and any accessible gas lines with an appropriate combustible gas detector Check for propane leaks below connections propane settles and for natural gas leaks above connections natural gas rises If any gas leaks are found specify repair Shut off the gas to the appliance and do not proceed with testing until the leak is repaired If the ga
52. as a confined space by the National Fire Protection Association NFPA In this case steps must be taken to correct the situation Please refer to the latest edition of NFPA 31 Standard for the Installation of Oil Burning Equipment NFPA 54 National Fuel Gas Code or NFPA 211 Standard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances for corrective measures If the CAZ contains or is properly connected with a volume of 50 cubic feet or more of indoor space for every 1000 Btuh of appliance input rating it is defined as an unconfined space by the National Fire Protection Association NFPA In this case no corrective action is required unless an appliance in the CAZ fails the worst case draft test The dedicated combustion air intake of sealed combustion direct vent appliances must be inspected The air intake must be physically connected to the appliance body and it must pull air from outside the building structure 1 Combustion appliances that are located in the space but do not take combustion supply air from the space such as direct vent appliances should not be included in the confined unconfined space calculation North Dakota Weatherization Field Standards January 2003 Page 34 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs 2427 Gas Range Inspection and Testing 1 Gas ranges should meet the following specifications found in Section 111100 on page
53. be installed The dam must be strong enough to hold the weight of a person entering or exiting the attic 3 If there are no interior accesses at least one exterior access to each attic space shall be left for inspection purposes 4 When it is necessary to install an interior access in a kneewall it must be at least the kneewall stud cavity width x 24 and shall be weatherstripped and insulated to the same R value as the kneewall A latch shall also be installed to ensure air tightness 5115 Insulation Shielding and Blocking 1 All electrical fixtures excluding IC insulation contact rated recessed lights and covered junction boxes shall be blocked with rigid material to ensure a minimum insulation clearance of 3 inches and a maximum clearance of 6 inches 2 No insulation including fire rated insulation shall be installed above recessed light fixtures except IC insulation contact type so as to entrap heat or prevent free air circulation 3 Blocking must be installed so that it is effective in shielding the heat source from the insulation and no insulation shall be left within the blocked area 4 Metal blocking must be notched so that it does not contact electrical wiring North Dakota Weatherization Field Standards January 2003 Page 52 5000 Insulation Requirements 5100 Attic Insulation 5 If insulation is added to the attic rigid permanent blocking is required around the attic access openings if they open into
54. ceeecesecssecssecsecsseesseesseeeseeseesscessceseenaees 67 D421 E E UE EEA EE beset se he Rah seek chs AA eh Sebel Ee ee Nae heh 67 5422 Insulation COVELAGE 0 eceecececsseseesseseesseseessessesseesensecseesecseesscsseeseeaecsecsecseesesssecsesaecseeeeneens 67 5423 Storage SPCC eecccccsccsssescssesscsseescesecseesccnseecsesesseesecsessecnseesesseeseenecsesseenseeeseseeseenscnesersnaees 68 5424 DUCES ANA PIPES oserei deieren oee eara doie adairean aoina a IE 68 5430 Crawlspace Ventilation cece ccccssccssesssesscescesscesecaecssecssecssccsescsesesssessessesssenseeseenaees 68 6000 Window and Door Replacements cccccccccccccccceceseeeeeeeeessesesesesesesesesesesesesesesnanansesans 69 6100 Primary WINdOWS asimi nantan a aa aa epee aa aaia aieea ede ne 69 6110 Window ASSESSMENL ccccccccsccssccssecssecsseessesssesscesscsscesecssecnsecssecssecseseseseeseessessesscessseseceaees 69 6120 Window Replacements cccccccsccsscessecssecssesscesecesscesecsaecnsecssecssecssseseseesseeseeesesscenseessenaees 69 6130 Window Air Leakage 0 cee ecccceseessesecssesecceeseeseesessecsecsecssesecsaecsensecsessecaeeseesaeesenaesseeaeenaeas 69 6140 WINdOW REPAlirs 0 ec cccesccesccssccssecseeesseessesssesscesscessceseceaecnsecssecssecssecsesesssesessesssenssesecnaees 69 6150 Window Replacement ccccccccccssccssccssesssesscesscesscesecnaecsscessecssecssccseseseseesesssesscenscessenaees 70 6200 Storm Windows and Insulation Systems
55. dense pack the perimeter Prepare floored areas or other restricted zones with existing insulation for high density application North Dakota Weatherization Field Standards January 2003 Page 54 5000 Insulation Requirements 5100 Attic Insulation 5122 Enclosed Ceiling Cavities 1 When insulating enclosed ceiling cavities it is preferred that insulation be installed from a location other than the through roofing material Such locations may include rafter cavities that open into an attic area through the eve or from the interior of the home 5123 Storage Space 1 Where attic space is being used for storage subgrantees should request the client remove storage items from the area 2 In cases where the client is physically unable to perform this task subgrantees should include the removal of items in the cost effective analysis of installing insulation and proceed with the measure if it is cost effective savings to investment ratio of 1 00 or greater 5124 Attic Access Insulation 4 If attic insulation is added access doors over living areas must be insulated as close as possible to the same R value as the attic or at least R 19 5125 Ductwork Insulation 1 Install a minimum of R 8 preferably R 11 or greater when possible on ducts and plenums It is preferred that attic ducts be draped with an unfaced blanket insulation and blown over with loose fill insulation to at least the depth of the surrounding insulation If
56. every attempt should be made to explain the program and the benefits of the work If this fails work should be suspended and the State Weatherization Office consulted j Obvious discrepancies are found between the information supplied by the client on the application and observed conditions at the time of weatherization The subgrantee must resolve these discrepancies before weatherization work can continue k If at any time prior to the beginning or work materials installed in a unit the subgrantee determines that the client is no longer eligible or subgrantee personal believe that circumstances may have changed the unit shall not be weatherized until updated information can be obtained from the client There are rats bats roaches reptiles insects animals or other vermin that are inappropriately or not properly contained on the premises m There are health or safety hazards that must be corrected before weatherization services may begin including but not limited to i The presence of animal feces and or other excrement ii Disconnected waste water pipes iii Hazardous electrical wiring or North Dakota Weatherization Field Standards January 2003 Page 19 2000 Health and Safety Requirements 2200 Health and Safety Procedures iv Unvented combustion appliances There are illegal drugs or illegal activities occurring on the premises The client or owner is physically or verbally abusive to subgrantee per
57. feet c Interior rigid insulation may be glued and fastened to the basement wall 2 Exterior basement wall insulation a Foundation panels factory pre finished on exterior may be used if they are glued and fastened has drip caps installed and is sealed around windows They must extend at least 6 inches below the finished grade b Extruded polystyrene may be used that is not pre finished if glued and fastened has drip caps installed and is sealed around North Dakota Weatherization Field Standards January 2003 Page 63 5000 Insulation Requirements 5300 Foundation Insulation windows The insulation must extend at least 6 inches below the finished grade The exterior surface of these panels must be covered with a material that will protect it from ultra violet light 5323 Insulation Coverage 1 Insulation must be installed in a manner that provides as continuous a thermal boundary as possible 2 Perimeter insulation must not be installed in a manner that excessively compresses the insulation material 5324 Rim Joist Insulation Rim joist insulation must be a minimum of R 10 2 Fiberglass rigid or foam insulation may be used for this application Whichever is used must result in a savings to investment ratio of at least 1 00 3 If there is significant air leakage the band or rim joist area must be properly sealed before the insulation is installed 4 The insulation must be secured in a permanent manner 53
58. following the completion of the insulation work with a receptacle tester If any one of the above two steps cannot be completed the sidewalls shall not be insulated and documentation stating the reason for omission must be placed in the client file Installing insulation above windows and doors is usually not feasible or cost effective and is not required in mobile homes Mobile home sidewalls shall not be dense packed or over filled so as to create siding or interior wall structural problems 7820 Sidewall Insulation Methods 1 7900 Vinyl faced fiberglass batt insulation and loose fill fiberglass are the preferred insulation materials for mobile home sidewalls The batt stuff method is the favored technique for insulating wall cavities For cavities that cannot or should not be insulated with the batt stuff technique the fill tube method with loose fill fiberglass is recommended If there is reason to believe before or after installing wall insulation that a mobile home has aluminum wiring it is recommended that an electrical inspection be performed by a licensed electrician following the completion of the insulation work Water Pipe Insulation Water pipes that have not been covered by under floor insulation should be insulated to a minimum of R 3 by the owner The piping shall be free from water leaks and properly secured to support the weight of the piping and insulation The insulation product may be either fl
59. for equipment manufactured by The Energy Conservatory go to http Awww energyconservatory com manuals html and download Maintenance Tips North Dakota Weatherization Field Standards January 2003 Page 101 8 11000 Diagnostic Testing Procedures Deactivate all vented combustion type appliances before depressurizing the structure by turning the thermostat down or the appliance off Prevent the ashes of wood coal burning units from entering the living space by closing sealing doors and dampers or by cleaning out or covering the ashes Inspect the house for loose or missing hatchways paneling ceiling tiles or glazing panes Secure any items that may become dislocated during the test and seal any missing hatchways Close all prime windows self storing storm windows if possible sky lights and exterior doors and latch them as they normally would be found during the winter Open all livable areas to the interior of the structure even if the occupants close them off during the winter Close basement doors during test unless one or more of the following conditions is present a The basement is used as a living area b The client leaves the basement door open during the winter or there is no basement door c The air returns do not connect directly to the furnace Set up the blower door unit in a favorable location in an area free from obstructions and wind interference 11130 Blower Door Test Depressurization normal
60. for worst case draft testing measures the difference in pressure between outside and inside the house at the combustion device in the combustion appliance zone CAZ and verifies adequate vent system draft at all conventionally vented combustion appliances If more than one vented combustion appliances are located in different areas of the house a test must be performed for each area In addition before weatherization work begins the Depressurization Tightness Limit DTL should be calculated when conditions warrant The DTL is a CFMso estimate that is used as an air sealing guideline that is if the dwelling is tightened to a CFMso value that is less than the DTL backdrafting is likely to occur The DTL must never be used as a substitute for worst case draft testing 11720 Dwellings Requiring Testing Worst case draft testing must be done North Dakota Weatherization Field Standards January 2003 Page 111 1 11000 Diagnostic Testing Procedures After all other work has been fully completed in all units weatherized this is a health and safety requirement Before weatherization work begins in site built houses with ductwork located in a combustion appliance zone this is a diagnostics test to determine if leaky ductwork in the CAZ is affecting CAZ pressures The following are exceptions to the first requirement above 1 If the house or mobile home is all electric with no combustion appliances woodstoves or fireplaces
61. heating unit that separates the combustion process from the distribution fluid with the sole purpose of transferring heat from the combustion process to the distribution fluid Heat loss The amount of heat escaping through the building shell during a specified period Heat pump A type of heating cooling unit usually electric that uses a refrigerant fluid to heat and cool a space Heat rise In a furnace the number of degrees of temperature increase that air is heated as it is blown over the heat exchanger Heat rise equals air supply temperature minus air return temperature Heating degree day HDD Each degree that the average daily temperature is below the base temperature usually 65 F constitutes one heating degree day Heating load The maximum amount of heat needed by a building during the very coldest weather to maintain the designed inside temperature Heating seasonal performance factor HSPF Rating for heat pumps describing how many Btus they transfer per kilowatt hour of electricity consumed North Dakota Weatherization Field Standards January 2003 Page 183 12000 Glossary HVAC Heating Ventilating Air Conditioning High limit A bimetal thermostat that turns the heating element of a furnace off if it senses a dangerously high temperature Hip Roof A roof that slants in four directions from a central peak Home energy index The number of Btus of energy used by a home divided by its area of condi
62. house pressure gauge and run the other end of the tube through the hole in the upper part of the door panel making sure it is away from the fan outlet See the digital manometer instructions for the proper hose connection for house pressurization Leave the fan pressure tube Tee attached to the gauges and fan as it normally would be for a depressurization test Attach an extra Tee to the upper taps of the fan pressure gauge and run the other end of the tube to the outside of the house somewhere away from any fan turbulence Install the fan with the flow rings low flow plate attaches should be facing the outdoors The fan tube and the extra tube will run outside between the fan housing and the elastic collar The fan speed control must remain on the inside of the door panel North Dakota Weatherization Field Standards January 2003 Page 103 11000 Diagnostic Testing Procedures 7 Level and stabilize the fan as necessary 8 Do not change the fan directional switch from its normal forward position 9 Zero the gauges according to the blower door manual 10 Perform a one point test by pressurizing to 50 Pascals house pressure or the highest house pressure if unable to reach 50 Pascals Use the flow rings or low flow plate if the fan pressure is less than 20 Pascals If wind seems to be affecting test results take several one point tests and average the results 11 Calculate the CFMso of the dwelling by using the markings
63. metal chimneys This fire rated material must be sealed with high temperature caulking to the chimney and to surrounding framing and finish materials a Unfaced fiberglass insulation of at least 3 inches in thickness must be used to wrap the chimney above this fire rated material This fiberglass serves as a fire shield for cellulose installed against the fiberglass b If an existing chimney or flue is treated incorrectly correct it to comply with these standards If it is not reasonable to bring a chimney up to these standards document this fact in the client file and include photographs sa7o a9 0 4150 Zonal Pressure Diagnostics 1 The completion of Zonal Pressure Diagnostics ZPD testing to assist in the determination of the location thermal boundaries of the unit and North Dakota Weatherization Field Standards January 2003 Page 43 4000 General Heat Waste Measures 4200 Ducted Distribution Requirements the effectiveness of air sealing measures is highly recommended in some dwellings Please refer to Section 111000 on page 123 for the details of ZPD procedures 4160 Fireplace Plugs and Equipment Covers 1 Removable fireplace plugs should be installed in a manner that prohibits the use of the fireplace unless the plug is removed 2 Covers for evaporative coolers whole house fans and window air conditioners should be easy to remove and reinstall 4200 Ducted Distribution Requirements Ductwork treatment is a
64. no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All boilers with the exception of direct vent units must North Dakota Weatherization Field Standards January 2003 Page 90 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements be tested with worst case draft test procedures see Section 11700 on page 111 8 Carbon Monoxide CO All non sealed combustion heating systems must be tested with a CO testing device Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 9 Circulator s on hot water boilers The motor must be checked for proper operation and oiled where applicable 10 Hot water or steam distribution The distribution system should be checked for leaks proper balancing and adjustment Dirty or clogged convectors radiators must be cleaned 11 Other cleaning Other necessary cleaning should be done where applicable including air intakes burners furnace controls and heat exchangers 8135 Related Heating System Measurement Techniques 1 Steady state efficiency a Gas systems Follow these procedures for conducting a steady state efficiency test of a gas heating system Vi Vil Inspect unit for hazardous conditions Locate an existing hole or drill and appropriate sized hole for measuring the draft Allow unit to reach steady state after firing the burner Measure the temperature before dilutio
65. on channel B The other end of this hose is connected to the duct blower flow ring 17 Pressurize the house with the blower door to the test pressure 25 Pascals Leave the blower door fan running 18 Make sure the digital pressure gauge is set on channel A 19 Set up the digital gauge properly a Turn the mode selection knob to time select and select 1 second North Dakota Weatherization Field Standards January 2003 Page 122 11000 Diagnostic Testing Procedures b Turn the mode selection knob to fan select and select 8 Choose 8 0 for no duct blower rings 8 1 for one ring and so on c Turn the mode selection to pressure 20 Turn on the duct blower and pressurize the ducts until the gauge reads zero that is the pressure between the duct system and the dwelling is zero Leave the duct blower running 21 Re check the building pressure at the blower door and adjust if necessary 22 Re check the duct blower system and adjust if necessary 23 On the DG 3 digital manometer connected to the duct blower fan turn the channel knob to B and turn the mode switch to Flow The gauge will now display the air flow through the duct blower fan in cubic feet per minute at 25 Pascals CFMgs This fan flow is the measured duct leakage to the outdoors at the test pressure of 25 Pascals This CFMzs5 flow can also be determined by reading fan pressure from Channel B and converting that pressu
66. opening for each burner the test must be done in each flue opening individually North Dakota Weatherization Field Standards January 2003 Page 25 Table 2 1 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs Carbon Monoxide CO Action Levels and Allowable Levels Appliance Action CO Level Allowable CO Level Comments Gas Furnace Boiler 100 ppm 200 ppm 200 ppm 400 ppm as measured air free Gas Water Heater 100 ppm 200 ppm 200 ppm 400 ppm as measured air free Gas Range Bake 800 ppm 800 ppm air free see Section Burner 111100 page 126 Oil Furnace Boiler 100 ppm 200 ppm as measured Oil Water Heater 100 ppm 200 ppm as measured Action CO Level indicates level above which repair or adjustment to appliance is recommended to lower CO emissions Allowable CO Level indicates maximum CO emission levels allowed by the North Dakota Weatherization Program 4 In cases where an atmospheric combustion heating system is present in a mobile home a new sealed combustion heating system may be installed 5 When there is an atmospheric combustion appliance in a bedroom a The appliance must be isolated from the bedroom air by drawing combustion air from another appropriate source b Ifthe appliance is replaced a sealed combustion system must be installed or c The appliance should be moved to a more appropri
67. or minus 20 percent of the required heat output of the heated space in its post weatherized condition If the existing appliance output rating falls outside of this range replacement for reasons of health and safety should be considered North Dakota Weatherization Field Standards January 2003 Page 87 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements 8133 Mobile Home Sealed Combustion Furnace All sealed combustion mobile home furnaces should conform to the following 1 Gas fired unit requirements a Gas Leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appro
68. or steam heat or for domestic hot water treatment is a general heat waste item This means that no savings to investment ratio SIR must be calculated for such treatment 4310 Steam and Hot Water Heating Distribution Pipes 1 Make certain there are no leaks in hot water or steam distribution pipes Supply and return lines in unconditioned spaces must be insulated ensuring that the pipes are completely covered Pipes may be insulated within the living space if it is determined that the space does not require heating or is overheated Pipe insulation must be sized to the pipe being insulated Secure the pipe insulation with mechanical fasteners or appropriate tape Pipe insulation must have mitered cuts at corner joints Tape joints appropriately North Dakota Weatherization Field Standards January 2003 Page 47 4000 General Heat Waste Measures 4300 Piped Distribution Requirements 7 Pumps valves pressure relief devices or vents should not be insulated Do not insulate over heat tape 8 Closed cell foam high temperature rated insulation or elastomeric pipe insulation should be used that has a flame spread rating no greater than 25 9 Maintain a minimum of 6 inches between pipe insulation and all heat sources 4320 Domestic Hot Water Pipes 1 Make certain there are no leaks in domestic hot water pipes 2 Insulate the first 9 feet of hot water pipe and the first 3 feet of cold water pipe with inch pipe insulati
69. oven bottom are blocked with foil catch pans or anything else ask the client to remove the blockage f Ignite the burner with the temperature setting at 350 F The oven burner may not ignite immediately this is normal for some electronic ignition systems Bake burners with standing pilots usually ignite faster g Start timing device h Insert the probe of the emission measurement instrument into the oven vent sleeve at the back of the range top Make sure the open e229 5 8 Broil burners are not to be tested because 1 they are not used as often as bake burners 2 when they are used they are not on as long as bake burners and 3 not all ovens have separate broil burners North Dakota Weatherization Field Standards January 2003 Page 131 11000 Diagnostic Testing Procedures end of the instrument probe is fully inserted into the oven vent opening at its center Do not allow dilution air to mix with the sampled combustion by products Ensure that grease or other buildup does not inadvertently block the probe tip i After beginning the oven test do not open the oven door If the oven door is opened after the testing period begins wait at least five minutes or to the end of the fifteen minute warm up time whichever is longer before taking emissions readings j Itis not necessary to turn on the emissions measurement instrument at the beginning of the warm up it may be turned on at a later time but must be ready to take r
70. pressure sensitive metal tape a Gaps of 1 8 inch or less may be sealed with i Duct mastic North Dakota Weatherization Field Standards January 2003 Page 44 4000 General Heat Waste Measures 4200 Ducted Distribution Requirements ii Pressure sensitive metal tape b Gaps between 1 8 inch and 1 inch shall be sealed with i Duct mastic embedded with fiberglass mesh c Gaps larger than 1 inch shall be covered with sheet metal or valley flashing fastened with screws and sealed with mastic 12 New ductwork installations may not include panned joists or stud cavities for ducts All passageways for distribution air must be hard ducted 13 If the boot is loose to the floor it shall be reattached to the sub floor with roofing nails or staples Wood screws may also be used Ensure that the heads of the screws do not prevent the register or grille from fitting into the boot a If gaps exist between the boot and the floor and the space below the floor is unconditioned fill the gaps with mastic or other appropriate materials 4220 Ductwork Sealing Materials 1 Cloth duct tape shall never be used for duct sealing 2 Existing duct tape must be removed before installing duct mastic or other approved sealing materials 3 Mastic shall meet the following requirements a Non toxic and water resistant b UL listed and labeled per UL 181A or 181B standards c Shall be compatible with the duct material to which it is applied 4 Me
71. proposed replacement CFL Watts For those readings that fall between the listed wattages select the next highest reading from the table Select the row corresponding to the daily usage Hours on per day for the lamp Follow that row across to the column closest to the electric rate energy cost in cents per kWh of the utility serving the house The dollars listed in the table represent the threshold cost of a replacement unit with a savings to investment ratio SIR of 1 All replacements that cost less than the cost listed in the table have an SIR greater than 1 and may be replaced All replacements that cost more than the cost listed in the table have an SIR less than 1 and may not be replaced 3 Leave all replaced incandescent bulbs with the client and explain that they should only be used in fixtures or lamps that are used for short periods each day North Dakota Weatherization Field Standards January 2003 Page 140 11000 Diagnostic Testing Procedures 50 15 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 50 Watt Incandescent CFL Watts 15 Hours On Per Day gt 2 3 4 5 6 7 0 020 2 30 3 45 460 5 75 6 90 8 05 0 025 2 88 4 31 5 75 7 19 8 63 10 07 0 030 3 45 5 18 6 90 863 10 35 12 08 0 035 4 03 6 04 8 05 10 07 12 08 14 09 0 040 4 60 6 90 9 20 11 50 13 81 16 11 0 045 5 18 7 77 10 35 12 94 15 53 18 12 0 050 5 75 8 63 11
72. readings 24 When all worst case draft testing has been completed turn off all exhaust equipment and return doors and combustion appliances to their normal settings Table 11 6 Atmospheric Gas Appliances Only Acceptable Draft Test Readings for Various Outdoor Temperature Ranges F lt 20 21 40 41 60 61 80 gt 80 Pascals 5 4 3 2 1 Water Column inches 02 016 012 008 004 Table 11 7 Power Oil Burners Acceptable Draft Readings Overfire and at Breech Draft Reading Location Acceptable Draft Overfire Draft 0 02 inches or 5 Pascals Vent Connector or Breech 0 04 to 0 06 or 10 to 15 Pascals North Dakota Weatherization Field Standards January 2003 Page 114 11000 Diagnostic Testing Procedures 11800 Room to Room Pressure Testing 11810 Air Handler Pressure Balance Testing for Site Built Homes 11811 Introduction This test procedure is performed only in dwellings with air handlers Room to room pressure s should be measured in all rooms with forced air heating return or supply ducts and operable doors after all weatherization installations have been completed The procedure indicates the magnitude of t 2 Duct leakage to the outdoors either through supply or return ducts Imbalances of air distribution resulting from closed interior doors These closed doors can act as dampers to the free flow of air within the conditioned space of the dwell
73. situation in which the following specification cannot be met All forced air systems should conform to the following standards 1 Gas fired unit requirements a Gas leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above North Dakota Weatherization Field Standards January 2003 Page 29 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Limit switch This switch should shut the gas valve off at
74. the flames dust particles Make sure there is no significant yellow at the upper tips of the flames ii You should be able to hear the gas flame flow in a quiet kitchen The sound should not be load or irregular 2 Oven area inspection a Inspect the oven for cleanliness If the burners or oven area are dirty enough to adversely impact the combustion process inform the client that the range should be cleaned to reduce the possibility of unacceptable emissions Do not test for CO emissions until the problem is corrected b Check the oven for blockage of the oven bottom vents These vent holes must not be blocked by anything in the oven such as aluminum foil The vent openings must never be obstructed because they are an important part of the oven combustion venting system c Check for air blockage at the bottom of the range and drawer and or broiler compartment under the oven Dust lint pet hair rugs or any other obstruction blocking free airflow to the oven bake burner must be removed by the owner d Check the oven bake burner spreader plate burner baffle Most bake burners the one at the bottom of the oven compartment have a flame spreader plate just under the oven compartment bottom and above the bake burner flame typically this plate is attached to the oven bottom Warped or detached spreader plates can result in flame impingement and quenching cooling of the gas flame causing increased production of carbon mono
75. to alternative resources for solution of the problem In those instances where the existing conditions pose a threat to the crew or contractor s health and safety the North Dakota Weatherization Assistance Program allows technical waivers for any audit or inspection process installation or any portion of the weatherization activity Under the North Dakota Health and Safety Standards the following health and safety assessments must be performed North Dakota Weatherization Field Standards January 2003 Page 13 2000 Health and Safety Requirements 2200 Health and Safety Procedures Hazardous Conditions Assessment Air Quality Assessment building tightness limit determination Combustion Systems Assessment worst case draft testing Assessment of Crew amp Client Safety Concerns Hazardous Materials Assessment OV ee O 2100 Technician Health and Safety 1 Itis the responsibility of the subgrantee to initiate and maintain programs that provide compliance with applicable Occupational Health and Safety Act Regulations 29 CFR 1910 amp 1926 and any other applicable Federal and State laws enacted to protect worker safety 2 The subgrantee must assess structural conditions and demonstrate caution when working in potentially dangerous areas 3 Weatherization services must be provided in a manner that minimizes risk to workers 4 Subgrantee employees shall take precautions to avoid contact with raw sewage or other unsanitary condi
76. volume 5 Natural CFM occupant f Building height 6 ELA minimum g Story height 7 CFM minimum h Occupant count bedrooms 1 8 Exhaust ventilation CFM 9 CFMso limit Based on ZipTest Pro software v House volume This is the occupied and conditioned volume of the dwelling If the basement is finished and or used as living space include it in your whole house blower door test door to basement open and include the basement as part of this square feet calculation vi Building height This is the building height above grade in units of feet For buildings with uneven above grade heights walk out basements etc use the average height of the building vii Story height This is the height in feet of one story of the building viii Occupant count For a particular dwelling use the same number of occupants for the BTLa procedure that were used for the BTL procedure The minimum should be five ix After all the input values are entered the output values as listed in Table 11 2 will be displayed The required exhaust ventilation CFM is displayed as number 8 Please note that the value for number 9 CFMsgp limit is likely to be slightly different from the CFMso limit calculated by the BTL procedure x Once the CFM requirement for the exhaust ventilation is determined refer to page 23 for fan selection and control 11500 Depressurization Tightness Limit DTL 11510 Introduction If the dwelling has conve
77. wall cavity or between round and square ducts Branch circuit An electrical circuit used to power outlets and lights within a home Brightness The luminous intensity of any surface in a given direction per unit of projected area of the surface as viewed in that direction British Thermal Unit Btu The quantity of heat required at sea level to raise the temperature of one pound of water one degree Fahrenheit BTL Building Tightness Limit calculation procedure expressed in units of CFMsgo based on the American Society of Heating Refrigerating and Air Conditioning Engineers Standard 62 1999 Ventilation for Acceptable Indoor Air Quality This method was clearly explained in an article in Home Energy magazine Tsongas 1993 The method closely follows the parameters set in ASHRAE 62 1999 For acceptable indoor air quality 15 CFM per person set minimum of five people or 0 35 air changes per hour ACH whichever is greater must be supplied by natural air leakage and or continuously operating ventilation BTLa Building Tightness Limit calculation procedure expressed in units of CFM that is more complex than the BTL method and is based on ASHRAE Standard 62 Standard 119 Air Leakage Performance for Detached Single Family Residential Buildings and Standard136 A Method of Determining Air Change Rates in Detached Dwellings This method closely follows the parameters set in ASHRAE 62 1999 For acceptable indoor air
78. with a 1 F temperature difference between the inside and the outside the thermal conductance of a material Ultraviolet radiation Light radiation having wavelengths beyond the violet end of the visible spectrum high frequency light waves Underlayment Sheeting installed to provide a smooth sound base for a finish material UL Underwriter s Laboratory om Van Vapor barrier A material that retards the passage of water vapor Vapor diffusion The flow of water vapor through a solid material Vapor retarder A vapor barrier Vaporize Change from a liquid to a gas Vent damper An automatic damper powered by heat or electricity that closes the chimney while a heating device is off Ventilation The movement of air through an area for removing moisture air pollution or unwanted heat Venting The removal of combustion gases by a chimney Vermiculite A heat expanded mineral used for insulation Volt A unit of electromotive force It is the amount of force required to drive a steady current of one ampere through a resistance of one ohm Electrical systems of most homes in the United States have 120 volt systems _W Watt W A unit measure of electric power at a point in time as capacity or demand One Watt of power maintained over time is equal to one joule per second North Dakota Weatherization Field Standards January 2003 Page 194 12000 Glossary Watt hour One Watt of power extended for one ho
79. with rigid material to ensure a minimum insulation clearance of 3 inches and a maximum clearance of 6 inches Knob and tube wiring a If knob and tube wiring is active in an attic any insulation must be keep at least three inches from the wiring Blown insulation must be appropriately dammed to keep the insulation from advancing closer than three inches from the knob and tube wiring North Dakota Weatherization Field Standards January 2003 Page 51 5000 Insulation Requirements 5100 Attic Insulation b If Knob and tube wiring has been deactivated and the dwelling has been rewired with BX Romex or other approved electrical cable the attic may be insulated without special precaution 5113 Treatment of Other Hazards 1 Use appropriate personal protective equipment and work practices in the presence of animal or insect hazards Ensure personal safety during work 2 Repair any rotted broken or damaged attic structural components Ensure that the ceiling will safely hold the weight of the insulation Repair or replace any weakened damaged or missing interior ceiling surface 5114 Attic Access 1 When it is necessary to install an interior access in the ceiling it must be at least 20 inches by 30 inches and shall be weatherstripped and insulated to the same level as the attic floor or to at least R 19 2 A ceiling access shall have an insulation dam made of rigid materials that exceeds the height of the insulation to
80. 0 Attic Insulation 5110 Inspection and Repairs 1 Prior to installing insulation a thorough inspection of the attic area should be performed The inspection should include the determination of the R value and integrity of existing insulation location of air leakage passage from the conditioned spaces to the attic and the suitability of the structure for receiving insulation The inspection should determine any repair work associated with the installation of the attic insulation Repairs should be completed before installing insulation 5111 Moisture Inspection and Repair Roof leaks and all other attic moisture problems shall be repaired prior to the installation of attic insulation All mechanical vents from exhausting and combustion appliances must be vented through the roof or sidewall Repair any moisture problems that will degrade or diminish the effectiveness of weatherization measures 5112 Electrical Safeguards Correct electrical problems such as unsafe wiring uncovered junction boxes or electrical situations which must be corrected prior to performing any other work in the attic s If insulation exists ensure that wiring is safe and meets applicable codes All visible electrical junctions must be flagged and be installed in covered junction boxes if additional insulation is installed All electrical fixtures excluding IC insulation contact rated recessed lights and covered junction boxes shall be blocked
81. 0 66 27 82 83 99 40 115 97 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 157 11000 Diagnostic Testing Procedures 90 20 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 90 Watt Incandescent CFL Watts 20 Hours On Per Day gt 2 3 4 5 6 7 0 020 460 6 90 9 20 11 50 13 81 16 11 0 025 5 75 863 11 50 14 38 17 26 20 13 0 030 6 90 10 35 13 81 17 26 20 71 24 16 0 035 8 05 12 08 16 11 20 13 24 16 28 19 0 040 9 20 13 81 18 41 23 01 27 61 32 21 0 045 10 35 15 53 20 71 25 89 31 06 36 24 0 050 11 50 17 26 23 01 28 76 34 51 40 27 0 055 12 66 18 98 25 31 31 64 37 97 44 29 0 060 13 81 20 71 27 61 34 51 41 42 48 32 0 065 14 96 22 43 29 91 37 39 44 87 52 35 0 070 16 11 24 16 32 21 40 27 48 32 56 37 0 075 17 26 25 89 34 51 43 14 51 77 60 40 0 080 18 41 27 61 36 81 46 02 55 22 64 43 0 085 19 56 29 34 39 12 48 89 58 67 68 45 0 090 20 71 31 06 41 42 51 77 62 13 72 48 0 095 21 86 32 79 43 72 54 65 65 58 76 51 0 100 23 01 34 51 46 02 57 52 69 03 80 53 0 105 24 16 36 24 48 32 60 40 72 48 84 56 0 110 25 31 37 97 50 62 63 28 75 93 88 59 0 115 26 46 39 69 52 92 66 15 79 38 92 61 0 120 27 61 41 42 55 22 69 03 82 83 96 64 0 125 28 76 43 14 57 52 71 90 86 28 100 67 0 130 29 91 44 87 59 82 74 78 89 74 104 69 0 1
82. 0 025 1 89 2 84 3 78 4 73 5 67 6 62 0 030 2 27 3 40 4 54 5 67 6 80 7 94 0 035 2 65 3 97 5 29 6 62 7 94 9 26 0 040 3 02 4 54 6 05 7 56 9 07 10 58 0 045 3 40 5 10 6 80 8 51 10 21 11 91 0 050 3 78 5 67 7 56 9 45 11 34 13 23 0 055 4 16 6 24 8 32 10 40 12 47 14 55 0 060 4 54 6 80 9 07 11 34 13 61 15 88 0 065 4 91 7 37 9 83 12 29 14 74 17 20 0 070 5 29 7 94 10 58 13 23 15 88 18 52 0 075 5 67 8 51 11 34 14 18 17 01 19 85 0 080 6 05 9 07 12 10 15 12 18 14 21 17 0 085 6 43 9 64 12 85 16 07 19 28 22 49 0 090 6 80 10 21 13 61 17 01 20 41 23 81 0 095 7 18 10 77 14 36 17 96 21 55 25 14 0 100 7 56 11 34 15 12 18 90 22 68 26 46 0 105 7 94 11 91 15 88 19 85 23 81 27 78 0 110 8 32 12 47 16 63 20 79 24 95 29 11 0 115 8 69 13 04 17 39 21 74 26 08 30 43 0 120 9 07 13 61 18 14 22 68 27 22 31 75 0 125 9 45 14 18 18 90 23 63 28 35 33 08 0 130 9 83 14 74 19 66 24 57 29 48 34 40 0 135 10 21 15 31 20 41 25 52 30 62 35 72 0 140 10 58 15 88 21 17 26 46 31 75 37 04 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 145 Hours On Per 0 020 2 96 0 025 3 70 0 030 4 44 0 035 5 18 0 040 5 92 0 045 6 66 0 050 7 40 0 055 8 14 0 060 8 88 0 065 9 61 0 070 10 35 0 075 11 09 0 080 11 83 0 085 12 57 0 090 13 31 0 095 14 05 0 100 14 79 0 1
83. 00 on page 25 for details These details are repeated with additional requirements in this section 8131 Forced Air Systems An efficiency safety check should be conducted by a qualified technician on all operable natural gas or propane fired heating systems Tests should be performed on all oil fired systems that have a smoke reading of two or less Modifications and repairs when possible should meet the following specifications applicable to type and or comply with the follow up procedures The subgrantee must document each situation in which the following specification cannot be met All forced air systems should conform to the following standards 1 Gas fired unit requirements a Gas Leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units should be cleaned and tuned once every two to three years Suggest the client have this service performed r
84. 05 15 53 0 110 16 27 0 115 17 01 0 120 17 75 0 125 18 49 0 130 19 23 0 135 19 97 0 140 20 71 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 60 15 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 60 Watt Incandescent CFL Watts 15 4 44 5 55 6 66 7 77 8 88 9 98 11 09 12 20 13 31 14 42 15 53 16 64 17 75 18 86 19 97 21 08 22 19 23 30 24 41 25 52 26 63 27 73 28 84 29 95 31 06 5 92 7 40 8 88 10 35 11 83 13 31 14 79 16 27 17 75 19 23 20 71 22 19 23 67 25 15 26 63 28 10 29 58 31 06 32 54 34 02 35 50 36 98 38 46 39 94 41 42 5 7 40 9 24 11 09 12 94 14 79 16 64 18 49 20 34 22 19 24 04 25 89 27 73 29 58 31 43 33 28 35 13 36 98 38 83 40 68 42 53 44 38 46 22 48 07 49 92 51 77 6 8 88 11 09 13 31 15 53 17 75 19 97 22 19 24 41 26 63 28 84 31 06 33 28 35 50 37 72 39 94 42 16 44 38 46 59 48 81 51 03 53 25 55 47 57 69 59 91 62 13 7 10 35 12 94 15 53 18 12 20 71 23 30 25 89 28 47 31 06 33 65 36 24 38 83 41 42 44 01 46 59 49 18 51 77 54 36 56 95 59 54 62 13 64 71 67 30 69 89 72 48 Page 146 Hours On Per 0 020 2 76 0 025 3 45 0 030 4 14 0 035 4 83 0 040 5 52 0
85. 111000 Zone Pressure Diagnostics ZPD Testing cc ceeeeeeeeeeeneeeeeeeneeeeeeneeeeeenaeeeeeeaaes 123 TITOTO INOC oone T E EN A A 123 111020 T st Procedures s iciccasiaeiendineiensiadindetiinadasweiinaineeatiiliban tren sais 124 177100 Gas Range Testing errutera A AT ate ce nated Antaee a ateee Ain Qe aan eevee 126 TETTIO lt MtrOMUGUON 055255255 EE ETE A onaes Sete eo eas sag elects ee he Ss ssa 126 111120 Inspection and Client Education 0 ccc cccccescesecssecssecssecssecseeeseeesseesseessesscesscesecnaees 127 111121 A Gas Range Inspection eecececccccecscetsesseseessessesseescesecsessecseesecsacsecsaeeseeaecsseseeseeseenes 127 111122 _ GUONCEDUCATION ksenia aae a aa aea 130 111130 Measurement of Emissions 2 0 0 0 ccc eccesseseesseeecseesceseescesecseesecssesecsseescsaecseesecseeeeneees 131 111131 Safety During the Test Period oo ecccceccccecsesesseesessceseescesecseesecseeecsseesesaeesesecseeeenes 131 111132 Oven Bake Burner Testing ccccccccccccesccssessesseeseseescsecsessecseesecseeseesseesesaecsesaeeaeeaeenes 131 111200 Electricity Efficiency MeasureS ssesssesririrrerrierrrrneiinnnsriianniannndannnanniennnanaaanneannaa 134 111210 Refrigerator Replacement and TeSting ccc cccescescesecseesecsseseceseescesecseeecseeneeneees 134 North Dakota Weatherization Field Standards January 2003 vi ATIZSTH ANTFODUCTION ERE AE Bea AAE eset ad a Se Pasa at eae a aoa 134 111212 Testing Procedure 0 0
86. 126 2428 Flexible Gas Connectors 1 Flexible gas lines must be replaced under the following conditions a The line is badly kinked corroded or shows signs of the physical wear b The line connection is the soldered two piece type connection c The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above 2429 Fuel Leaks 1 All identified fuel leaks on all lines and controls within the structure must be repaired 24210 Heat Exchangers 2 All space heating systems with an identified crack in the heat exchanger must be replaced Exceptions are those cases where a very small hole such as a pinhole or any other inconsequential defect resulting from the manufacturing process may exist and carbon monoxide CO readings are within the acceptable range when CO emission tests are performed both with the air handler running and off 24211 Draft Backdrafting and Spillage All fossil fuel combustion appliances with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 to ensure proper draft during worst case conditions 24212 Venting Combustion Appliances 1 The combustion venting system of all combustion appliances must be inspected 2 All venting systems shall comply with the latest edition of NFPA 31 Standard for the Instal
87. 134 Boilers A boiler efficiency safety check should be conducted on all operable natural gas or propane fired heating systems Tests should be performed on all oil fired systems that have a smoke reading of two or less Modifications and repairs when possible should meet the following specifications applicable to type and or comply with the follow up procedures The subgrantee must document each situation in which the following specification cannot be met All boiler systems should conform to the following standards 1 Gas fired unit requirements a Gas Leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak North Dakota Weatherization Field Standards January 2003 Page 89 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units should be cleaned and tuned once every two to three years Suggest the client
88. 2003 11000 Diagnostic Testing Procedures 50 20 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 CFL Watts 20 2 96 3 70 4 44 5 18 5 92 6 66 7 40 8 14 8 88 9 61 10 35 11 09 11 83 12 57 13 31 14 05 14 79 15 53 16 27 17 01 17 75 18 49 19 23 19 97 20 71 3 94 4 93 5 92 6 90 7 89 8 88 9 86 10 85 11 83 12 82 13 81 14 79 15 78 16 76 17 75 18 74 19 72 20 71 21 69 22 68 23 67 24 65 25 64 26 63 27 61 4 93 6 16 7 40 8 63 9 86 11 09 12 33 13 56 14 79 16 02 17 26 18 49 19 72 20 95 22 19 23 42 24 65 25 89 27 12 28 35 29 58 30 82 32 05 33 28 34 51 6 7 5 92 6 90 7 40 8 63 8 88 10 35 10 35 12 08 11 83 13 81 13 31 15 53 14 79 17 26 16 27 18 98 17 75 20 71 19 23 22 43 20 71 24 16 22 19 25 89 23 67 27 61 25 15 29 34 26 63 31 06 28 10 32 79 29 58 34 51 31 06 36 24 32 54 37 97 34 02 39 69 35 50 41 42 36 98 43 14 38 46 44 87 39 94 46 59 41 42 48 32 Page 143 Hours On Per 0 020 1 78 0 025 2 22 0 030 2 66 0 035 3 11 0 040 3 55 0 045 3 99 0 050 4 44 0 055 4 88 0 060 5 33 0 065 5 77 0 070 6 21 0 075 6 66 0 080 7 10 0 085 7 54 0 090 7 99 0 095 8 43 0 100 8 88 0 105 9 32 0 110 9 76 0 115 10 21 0 120 10 65 0 125 11 09 0 130 11 54 0 135 11 98 0 1
89. 213 Wood Coal Stoves and Fireplaces ccccccccccccsscesscesecssecssccssecssecsescsseeesecscesscesscesseaees 36 25000 Blower Door Saloy shri aR SA A O Aa TA a RA EOR A eds 36 2600 Electrical Safety aeieea e a ei ee eee 36 2610 Knob and Tube Wir ig nicieni iii A EE RE a EA 36 2620 Ground Fault Interrupt Circuits cece ccccesccesecssecssecsseesescssecseeecesscesscesecsaecssecssecssecsaeenes 37 3000 Energy Audit Requirement 2 cccccescesseeneeceeeeeeeeeeeeneeseeeeesenseeaceeseseeeseneeesseeneeseeeens 39 3100 Field AUGIts i 2 c tales increta Meee hee athe hel eee ho Pett alee tet 39 3200 Gomputenized Energy Adit assier irie eeina rran AEAT cete sit EAEE EEE ERNS 39 4000 General Heat Waste Measures ccccccccccsesesssssssssssesesssessesseseseseeneesesasananacacasanenanees 41 4100 Air Sealing Requirements eesseesrinserirnnerrisirrresirnnnsnennnnininnasanuuaninnnaanenaddaaaadaanu nanena 41 4110 Blower Door USS ick ceeds ee ees a e i A eR aes 41 4120 Cost Effective Air Sealing Guidelines ccc cceeceeeseeseeseetecseeeecseeeeeseesesaeeseeesseesees 42 4130 Room to Room PIeSSUFES cccccesssseesceseescesecseesecsscsecsseeecsaecsessecsecsecseeeessasesesaeesessesseeaess 42 4140 Penetrations and Holes cccccscsssessceeeseesecseeseceeseceseesesaecsessecsecsessaeeesaeceesaeesesaesseeaees 43 4150 Zonal Pressure Diagnostics 0 0 cc eccccceseescesecseeeecseesceeeeesaeeseesecsecsecsseeeseseesesaeeseeaesseeeees 43
90. 25 61 38 41 51 21 64 02 76 82 89 62 0 100 26 95 40 43 53 91 67 38 80 86 94 34 0 105 28 30 42 45 56 60 70 75 84 90 99 06 0 110 29 65 44 47 59 30 74 12 88 95 103 77 0 115 31 00 46 50 61 99 77 49 92 99 108 49 0 120 32 34 4852 64 69 80 86 97 03 113 21 0 125 33 69 50 54 67 38 84 23 101 08 117 92 0 130 35 04 52 56 70 08 87 60 105 12 122 64 0 135 36 39 54 58 72 78 90 97 109 16 127 36 0 140 37 74 56 60 75 47 94 34 113 21 132 07 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 162 11000 Diagnostic Testing Procedures 100 20 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 100 Watt Incandescent CFL Watts 20 Hours On Per Day gt 2 3 4 5 6 7 0 020 5 26 7 89 10 52 13 15 15 78 18 41 0 025 6 57 9 86 13 15 16 44 19 72 23 01 0 030 7 89 11 83 15 78 19 72 23 67 27 61 0 035 9 20 13 81 18 41 23 01 27 61 32 21 0 040 10 52 15 78 21 04 26 30 31 56 36 81 0 045 11 83 17 75 23 67 29 58 35 50 41 42 0 050 13 15 19 72 26 30 32 87 39 44 46 02 0 055 14 46 21 69 28 93 36 16 43 39 50 62 0 060 15 78 23 67 31 56 39 44 47 33 55 22 0 065 17 09 25 64 34 19 42 73 51 28 59 82 0 070 18 41 27 61 36 81 46 02 55 22 64 43 0 075 19 72 29 58 39 44 49 31 59 17 69 03 0 080 21 04 31 56 42 07 52 59 63 11 73 63 0 085 22 35 33 53 44 70
91. 25 Foundation Insulation 1 Route any exhaust fans to the outside using dampered vents smooth bore rigid pipe and an appropriate termination fixture 2 If necessary repair or replace exterior doors or door components to reduce air leakage If necessary replace all missing glass and repair or replace window components to reduce air leakage 3 Foundation walls should be insulated so that no portion above grade is left uninsulated 4 Fiberglass insulation must not be left exposed in living areas 5 Mechanical fasteners must be used to secure perimeter insulation in a permanent manner 6 Basement wall insulation must be a minimum of R 7 5 7 Interior wall installation a Stud out wall and insulate with fiberglass or use rigid insulation glued and fastened b An alternative method for installing perimeter insulation is to attach metal building insulation at the floor above the rim so that the blanket extends from the floor above four feet down the foundation wall It should be run horizontally in a continuous manner to eliminate as many seams as possible The blanket may be slit at each floor joist to allow installation in a manner that minimizes gaps around the joist The bottom of the bottom of this fiberglass batt North Dakota Weatherization Field Standards January 2003 Page 64 5000 Insulation Requirements 5300 Foundation Insulation insulation should be air sealed to the wall with a strip of wood nailed to the foundatio
92. 35 31 06 46 59 62 13 77 66 93 19 108 72 0 140 32 21 48 32 64 43 80 53 96 64 112 75 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 158 11000 Diagnostic Testing Procedures 90 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 90 Watt Incandescent CFL Watts 23 Hours On Per Day gt 2 3 4 5 6 7 0 020 440 661 881 11 01 13 21 15 42 0 025 5 51 8 26 11 01 13 76 16 52 19 27 0 030 6 61 9 91 13 21 16 52 19 82 23 12 0 035 7 71 11 56 15 42 19 27 23 12 26 98 0 040 8 81 13 21 17 62 22 02 26 43 30 83 0 045 9 91 14 87 19 82 24 78 29 73 34 69 0 050 11 01 16 52 22 02 27 53 33 03 38 54 0 055 12 11 18 17 24 23 30 28 36 34 42 39 0 060 13 21 19 82 26 43 33 03 39 64 46 25 0 065 14 32 21 47 28 63 35 79 42 95 50 10 0 070 15 42 23 12 30 83 38 54 46 25 53 96 0 075 16 52 24 78 33 03 41 29 49 55 57 81 0 080 17 62 26 43 35 24 44 05 52 86 61 66 0 085 18 72 28 08 37 44 46 80 56 16 65 52 0 090 19 82 29 73 39 64 49 55 59 46 69 37 0 095 20 92 31 38 41 84 52 31 62 77 73 23 0 100 22 02 33 03 44 05 55 06 66 07 77 08 0 105 23 12 34 69 46 25 57 81 69 37 80 94 0 110 24 23 36 34 48 45 60 56 72 68 84 79 0 115 25 33 37 99 50 65 63 32 75 98 88 64 0 120 26 43 39 64 52 86 66 07 79 28 92 50 0 125 27 53 41 29 55 06 68 82 82 59
93. 386 kWh yr of projected energy use xi After you have completed your metering remove you meter and all attachments Plug the refrigerator back into the original outlet If necessary move the refrigerator freezer back to its original location xii Use the AREFR equation in the ZipTest Pro software package loaded in the TI 86 calculator Enter the required input values to get the resulting Savings to Investment Ratio SIR If the SIR is one or greater replace the refrigerator If the SIR is less than one do not replace 111213 Replacement Guidelines 1 Fill out the work order and have the customer sign it The work order includes customer information space measurements specifications for removing the existing unit and instructions for installing the new refrigerator 2 The size of the replacement refrigerator should be determined by the estimator Talk with the client s regarding the need for a smaller or larger size Their needs might have changed over time because of additional children or children leaving home Try to specify a replacement of the same or a smaller size 3 In most cases replacing a side by side unit with another side by side unit shall not be done because of the higher cost and greater energy consumption of side by side units However replacement units may be side by side if 13 Each one degree difference between AAAT and PAT contributes to approximately a 2 5 percent difference in energy consumptio
94. 40 12 43 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 50 23 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 50 Watt Incandescent CFL Watts 23 3 4 2 66 3 55 3 33 4 44 3 99 5 33 4 66 6 21 5 33 7 10 5 99 7 99 6 66 8 88 7 32 9 76 7 99 10 65 8 65 11 54 9 32 12 43 9 98 13 31 10 65 14 20 11 32 15 09 11 98 15 98 12 65 16 86 13 31 17 75 13 98 18 64 14 64 19 53 15 31 20 41 15 98 21 30 16 64 22 19 17 31 23 08 17 97 23 96 18 64 24 85 4 44 5 55 6 66 7 77 8 88 9 98 11 09 12 20 13 31 14 42 15 53 16 64 17 75 18 86 19 97 21 08 22 19 23 30 24 41 25 52 26 63 27 73 28 84 29 95 31 06 5 33 6 66 7 99 9 32 10 65 11 98 13 31 14 64 15 98 17 31 18 64 19 97 21 30 22 63 23 96 25 29 26 63 27 96 29 29 30 62 31 95 33 28 34 61 35 94 37 28 6 21 7 77 9 32 10 87 12 43 13 98 15 53 17 08 18 64 20 19 21 74 23 30 24 85 26 40 27 96 29 51 31 06 32 62 34 17 35 72 37 28 38 83 40 38 41 93 43 49 Page 144 11000 Diagnostic Testing Procedures 50 27 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 50 Watt Incandescent CFL Watts 27 Hours On Per 0 020 1 51 2 27 3 02 3 78 4 54 5 29
95. 5 22 6 12 43 11 83 14 20 16 57 18 93 21 30 23 67 26 03 37 28 30 77 33 13 35 50 37 87 40 23 42 60 44 97 47 33 49 70 52 07 54 43 56 80 59 17 61 53 63 90 66 27 7 14 50 13 81 16 57 19 33 22 09 24 85 27 61 30 37 43 49 35 89 38 66 41 42 44 18 46 94 49 70 52 46 55 22 57 98 60 74 63 51 66 27 69 03 71 79 74 55 77 31 Page 160 11000 Diagnostic Testing Procedures 100 15 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 100 Watt Incandescent CFL Watts 15 Hours On Per Day gt 2 3 4 5 6 7 0 020 5 59 8 38 11 18 13 97 16 76 19 56 0 025 6 98 10 48 13 97 17 46 20 95 24 45 0 030 8 38 12 57 16 76 20 95 25 15 29 34 0 035 9 78 14 67 19 56 24 45 29 34 34 23 0 040 11 18 16 76 22 35 27 94 33 53 39 12 0 045 12 57 18 86 25 15 31 43 37 72 44 01 0 050 13 97 20 95 27 94 34 92 41 91 48 89 0 055 15 37 23 05 30 73 38 42 46 10 53 78 0 060 16 76 25 15 33 53 41 91 50 29 58 67 0 065 18 16 27 24 36 32 45 40 54 48 63 56 0 070 19 56 29 34 39 12 48 89 58 67 68 45 0 075 20 95 31 43 41 91 52 39 62 86 73 34 0 080 22 35 33 53 44 70 55 88 67 06 78 23 0 085 23 75 35 62 47 50 59 37 71 25 83 12 0 090 25 15 37 72 50 29 62 86 75 44 88 01 0 095 26 54 39 81 53 09 66 36 79 63 92 90 0 100 27 94 41 91 55 88 69 85 83 82
96. 6 53 0 030 12 52 18 79 25 05 31 31 37 57 43 83 0 035 14 61 21 92 29 22 36 53 43 83 51 14 0 040 16 70 25 05 33 40 41 75 50 09 58 44 0 045 18 79 28 18 37 57 46 96 56 36 65 75 0 050 20 87 31 31 41 75 52 18 62 62 73 05 0 055 22 96 34 44 45 92 57 40 68 88 80 36 0 060 25 05 37 57 50 09 62 62 75 14 87 67 0 065 27 13 40 70 54 27 67 84 81 40 94 97 0 070 29 22 43 83 58 44 73 05 87 67 102 28 0 075 31 31 46 96 62 62 78 27 93 93 109 58 0 080 33 40 50 09 66 79 83 49 100 19 116 89 0 085 35 48 53 23 70 97 88 71 106 45 124 19 0 090 37 57 56 36 75 14 93 93 112 71 131 50 0 095 39 66 59 49 79 32 99 15 118 97 138 80 0 100 41 75 62 62 83 49 104 36 125 24 146 11 0 105 43 83 65 75 87 67 109 58 131 50 153 41 0 110 45 92 68 88 91 84 114 80 137 76 160 72 0 115 48 01 72 01 96 01 120 02 144 02 168 03 0 120 50 09 75 14 100 19 125 24 150 28 175 33 0 125 52 18 78 27 104 36 130 45 156 55 182 64 0 130 54 27 81 40 108 54 135 67 162 81 189 94 0 135 56 36 84 53 112 71 140 89 169 07 197 25 0 140 58 44 87 67 116 89 146 11 175 33 204 55 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 169 11000 Diagnostic Testing Procedures 150 27 Threshold Cost of a Replacement CFL Yielding a Savings to lnvestment Ratio of 1 Replacement of 150 Watt Incandescent CFL Watts 27 Hours On Per Day
97. 9 0 065 28 84 43 27 57 69 72 11 86 53 100 95 0 070 31 06 46 59 62 13 77 66 93 19 108 72 0 075 33 28 49 92 66 56 83 20 99 84 116 48 0 080 35 50 53 25 71 00 88 75 106 50 124 25 0 085 37 72 56 58 75 44 9430 113 16 132 02 0 090 39 94 59 91 79 88 99 84 119 81 139 78 0 095 42 16 63 23 84 31 105 39 126 47 147 55 0 100 44 38 66 56 88 75 110 94 133 13 155 31 0 105 46 59 69 89 93 19 116 48 139 78 163 08 0 110 48 81 73 22 97 63 122 03 146 44 170 84 0 115 51 03 76 55 102 06 127 58 153 09 178 61 0 120 53 25 79 88 106 50 133 13 159 75 186 38 0 125 55 47 83 20 110 94 138 67 166 41 194 14 0 130 57 69 86 53 115 38 144 22 173 06 201 91 0 135 59 91 89 86 119 81 149 77 179 72 209 67 0 140 62 13 93 19 124 25 155 31 186 38 217 44 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 166 11000 Diagnostic Testing Procedures 150 18 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 150 Watt Incandescent CFL Watts 18 Hours On Per Day gt 2 3 4 5 6 7 0 020 8 68 13 02 17 36 21 69 26 03 30 37 0 025 10 85 16 27 21 69 27 12 32 54 37 97 0 030 13 02 19 53 26 03 32 54 39 05 45 56 0 035 15 19 22 78 30 37 37 97 45 56 53 15 0 040 17 36 26 03 34 71 43 39 52 07 60 74 0 045 19 53 29 29 39 05 48 81 58 58 68 34 0 050 21 69 32 54 43 39
98. 96 35 0 130 28 63 42 95 57 26 71 58 85 89 100 21 0 135 29 73 44 60 59 46 74 33 89 19 104 06 0 140 30 83 46 25 61 66 77 08 92 50 107 91 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 Page 159 Hours On Per 0 020 4 14 0 025 3 94 0 030 4 73 0 035 5 52 0 040 6 31 0 045 7 10 0 050 7 89 0 055 8 68 0 060 12 43 0 065 10 26 0 070 11 04 0 075 11 83 0 080 12 62 0 085 13 41 0 090 14 20 0 095 14 99 0 100 15 78 0 105 16 57 0 110 17 36 0 115 18 14 0 120 18 93 0 125 19 72 0 130 20 51 0 135 21 30 0 140 22 09 Fuel Cost per KWh North Dakota Weatherization Field Standards January 2003 11000 Diagnostic Testing Procedures 90 27 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 90 Watt Incandescent CFL Watts 27 6 21 5 92 7 10 8 28 9 47 10 65 11 83 13 02 18 64 15 38 16 57 17 75 18 93 20 12 21 30 22 48 23 67 24 85 26 03 27 22 28 40 29 58 30 77 31 95 33 13 8 28 7 89 9 47 11 04 12 62 14 20 15 78 17 36 24 85 20 51 22 09 23 67 25 24 26 82 28 40 29 98 31 56 33 13 34 71 36 29 37 87 39 44 41 02 42 60 44 18 5 10 35 9 86 11 83 13 81 15 78 17 75 19 72 21 69 31 06 25 64 27 61 29 58 31 56 33 53 35 50 37 47 39 44 41 42 43 39 45 36 47 33 49 31 51 28 53 25 5
99. AEN EEN E AE E 111 11720 Dwellings Requiring TeSting 0 00 0 ccccccccceseessssecssesecssesecsseeecesecseesecseeeeesseeeesaeeseeesseenees 111 11730 WEStPrOCCAUE EEEN PN E EETA TIN sco O A sca ANA EEA R 112 11800 Room to Room Pressure Testing eeassseeessiecrerreeeernnerrnnesrenradrinnectttnaastennedtnnuaattnnnt 115 11810 Air Handler Pressure Balance Testing for Site Built HOMES cece ecereeeees 115 11811 IT OOUCHION oreore agn e E A E E a E E A ENES 115 11812 TOST FOCIE airi A E E E TEA EES 115 11900 Duct Leakage Testing eroze iniien n a a AA 116 11910 igizo elile i e p ESELA AT EE A AA EE E T NA EAE T EAT ETE 116 11920 Duct Leakage Standards 20 00 cccccccccssessceseeseesecseesecseeeeceseeseesecsessecseeeeesseesesaeesesesseesees 117 11921 Mobla FOMOS So his i 2s soci EEE E E shai tee oe ees igs ube becahag dane vers een 117 11922 Site Built Homes Including Manufactured HOUSING cccccceceseeteeceeteeteeteeneeeees 117 11930 Pressure Pan Testing Procedures cccccescssesscssessceseescesecseesecseeeeeseeessaeesesseeneenees 119 11931 VRE OQUCTION erea to cnc ches ides bo ve ayes bags bo vb eae AE tong aes Lge Babe EEO 119 11932 TOSEPIOCOQUIC sre E AEE AA Eddsebbensostind tg hs Sone E OS 119 11940 Duct Blower Testing for Leakage to OULAKOOSS ee ec ceesccseeteeeseeeeeseeeeeeeseeeeeseesees 121 11941 IINTODUCTION onic E nese iar boss bo Soe A otter hd Heaton Aa a eee 121 11942 Tost PIOCCQUIC arenie EEE EAR e e ES 121
100. CFMs measurements must be completed on each unit and documented in each client file A one point CFMso blower door measurement is preferred over the multi point computer derived method See Section 11100 page 101 for proper blower door setup and use a Pre and post weatherization blower door tests may be waived due to the following circumstances i Problems may be created in the unit due to a lack of structural integrity ii Suspected friable asbestos containing material may be significantly disturbed iii Other documented extenuating circumstances 2 Blower door testing should continue during air leakage reduction work as part of blower door guided air sealing Please refer to North Dakota Weatherization Field Standards January 2003 Page 41 4000 General Heat Waste Measures 4100 Air Sealing Requirements Section 11300 on page 104 for cost effective guideline procedure instructions 3 Before air leakage and convective bypass measures are installed the building envelope must be defined and existing health and safety problems must be corrected 4120 Cost Effective Air Sealing Guidelines 1 Before blown insulation is installed all obvious leaks should be sealed These leaks might include but are not limited to Open top plates usually in balloon frame dwellings Chases around masonry and metal chimneys Chases around plumbing stacks Missing window sashes or lights Installation of sash locks on double and sin
101. L must be selected for the calculation of the DTL The DTL sets a low limit for air sealing that may or may not be lower than the building tightness limit for the same house Refer to Appendix C for a flow chart of this procedure Design temperature A high or low temperature used for designing heating and cooling systems when calculating the building load North Dakota Weatherization Field Standards January 2003 Page 178 12000 Glossary Dilution air Air that enters through the dilution device an opening where the chimney joins to an atmospheric draft combustion appliance Dilution device A draft diverter draft hood or barometric draft control on an atmospheric draft combustion appliance Direct vent appliance Appliances that are constructed and installed so that all combustion air is taken directly from and the flue gases are vented directly to the outside Distribution system A system of pipes or ducts used to distribute energy DHW Domestic Hot Water Dormer A framed structure projecting above a sloping roof surface and normally containing a vertical window Draft diverter A device built into an appliance or made a part of the vent connector for an appliance that is designed to 1 provide for the ready escape of the flue gasses from the appliance in the event of no draft backdraft or stoppage beyond the draft hood 2 prevent a backdraft from entering the appliance and 3 neutralize the effect of stack action o
102. North Dakota Weatherization Field Standards Home Weatherization Assistance Program January 2003 Edition State of North Dakota Department of Commerce Division of Community Services DCS Paul Govig Director Energy Division Howard Sage Weatherization Program Administrator 400 East Broadway Bismarck ND 58502 701 328 4140 Acknowledgements The revision of this document was part of the project called Best Practices for North Dakota Weatherization This project was managed by Howard Sage North Dakota Weatherization Program Administrator and the primary contractor was Rick Karg of R J Karg Associates Topsham Maine The details of the North Dakota Weatherization Field Standards were selected as best practices for the northern United States and adapted for the North Dakota weatherization program This document was written by Rick Karg with the wise assistance of Cal Steiner Coordinator of the Dickinson North Dakota Community Action Program Howard Sage and members of the North Dakota weatherization technical committee Members of this committee include Larry Aberle coordinator Fargo ND Mark Boespflug coordinator Minot ND Dan Faleide foreman Fargo ND Bruce Hagen estimator Devils Lake ND Rory Hoffman senior housing supervisor Jamestown ND Monty Long foreman Williston Chris Loveless estimator Grand Forks ND Cal Steiner coordinator Dickinson and Williston ND Lynn Vetter estimator Bismarck ND
103. Services DCS as complete only after the subgrantee has performed a final inspection The purpose of the final inspection is to ensure that the work has been completed in a workmanlike manner and in accordance with the approved computerized audit currently the WXEOR Program 2 Qualifying inspection personnel a Atleast one third of the dwelling units completed under any one grant must be inspected by a qualified subgrantee staff person other than a person who performed on site work on the dwelling unit This qualified inspector will usually be the estimator inspector or the weatherization coordinator for the subgrantee North Dakota Weatherization Field Standards January 2003 Page 9 1000 Administrative Scope and General Requirements 1700 Subgrantee Final Inspections i The required dwelling units inspected must be a representative sample of each county served by the subgrantee b The remaining two thirds of the dwelling units may be inspected by the crew foreman or other on site authorized subgrantee representative In such a case the inspector may be one of the personnel who performed on site work on the dwelling unit 3 The final inspection must document the materials installed and confirm that they were installed in a professional manner in accordance with the North Dakota Weatherization Field Standards The final inspection form must be signed and dated by both the client and the person inspecting the job on behalf of the s
104. Standards January 2003 Page 48 4000 General Heat Waste Measures 4300 Piped Distribution Requirements 2 If there are signs that the water heater is leaking this problem must be solved before insulation is added 3 Electric water heaters outside the living space including mobile home water heaters in exterior closets must be insulated if the total existing tank insulation is less than R 11 4 Awater heater blanket must not be installed when a temperature and pressure relief valve does not exist or when the existing temperature and pressure relief does not operate properly 5 A water heater blanket must not cover the following a The temperature and pressure relief valve on an electric unit b The drain valve on an electric unit c The electrical line attaches to an electric unit Insulation must be keep at least two inches away from where this electrical line attaches to the water heater 4340 Domestic Hot Water Temperature 1 Whenever feasible the domestic hot water temperature must be measured and reduced to 120 F or less with the approval of the client owner 2 The client owner must be informed that lowering the temperature of the water will result in less thermal energy stored in the hot water therefore they will run out of hot water sooner 3 The original water temperature setting must be marked on the thermostatic control 4350 Energy Saving Showerheads 1 An energy saving low flow showerhead may be in
105. Standards January 2003 Page 69 6000 Window and Door Replacements 6200 Storm Windows and Insulation Systems 2 Window glazing compound shall only be replaced if the existing glazing is deteriorated to the degree that the window glass is in jeopardy of falling out if the sash 3 It is not required to make windows sashes operable unless stipulated by building codes 6150 Window Replacements 1 Replacement of windows must be justified by the WXEOR audit 6200 Storm Windows and Insulation Systems 6210 Interior Storm Windows 1 Interior storm windows shall be installed whenever feasible in mobile homes 2 Exterior storm windows shall be installed whenever feasible in site built homes 3 Aone half inch to two inch air space between the prime window and the installed storm window is preferred 4 Storm windows shall be installed over single pane windows and according to cost effectiveness as determined by the approved North Dakota energy audit program WXEOR 5 Allowable storm windows include a Rigid framed single and double strength glass b Rigid and flexible framed Plexiglas c Framed and unframed plastic kits with a minimum thickness of six mils 6 Repairs to prime windows must be done to keep moisture out before an interior storm window may be installed over the prime window 7 Storm windows must be securely fastened in place installed straight plumb and level and without distortion 8 Storm windows may
106. Subgrantee Weatherization Coordinator or Director for the purpose of determining if 1 The client can safely remain in the home if an alternative source of heat portable electric space heaters or must to be relocated for a short time If the technician believes the client cannot safely remain in the home they will be advised to make arrangements to stay with family or friends until the unit can be occupied again If the client cannot make arrangements to stay in another location until the problem is solved the subgrantee may use furnace repair and replacement funds to provide temporary shelter until other arrangements can be made Documentation supporting the needed repairs must be kept in the client file Repairs done under the Weatherization Program must be included as part of the North Dakota Weatherization Field Standards January 2003 Page 27 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs SIR calculation computed by the WXEOR computerized audit unless done to protect the client s health and or safety Clients without heat during the heating season shall be provided with temporary heating appliances to ensure thermal comfort stabilize the situation and prevent damage to the dwelling 2411 Emergency Situations Immediate Follow up Required Some safety problems may warrant a discontinuing of the combustion appliance testing or shutting off the appliance until the repairs can be m
107. acesscsaeesessecsecsesssesesaeceesaeeaeeesneens 57 5213 Treatment Of Other HAZAr ds ccccccccccecccesessseseesceeessesesscesesaeesessecseesecsseeessseesesaeeaeeeensens 57 5214 Interior INSPECTION ANA REPAITS cccccccccsccssccsscessessseesseescesscesscssecssecssecssecsseeseseatseateseens 58 5215 Exterior Inspection ANA REPAUS ccccccccccccesccsscesseessesscescesscesscssecsaecssecssecssecseseateeseessens 58 5220 Installation Methods for Wall Insulation 000 eee ccceeseeseeeceseeseesecseesecsseeecsaeesenseeseeseeneens 59 D221 BIOGCKING 2 58 2 Seesetst EE E E eel fal Mate Shasta tet ssi Wan Race Set 59 D222 Materials a womens Mitt anderen Renae hina bhai ean EAN 59 5223 Insulation Coverage Density and VOIdS 00 0 eee ceceeeeseeeeteceeeeceeeeeesecsessecaeeseeneens 60 5224 PIUGS ANG PatChinG e ei vleseesisss hans Aine ead baka A EA 60 D225 gt BACE SAN ase a D cule ds fase vees Sesetehs Ares asec faeces a D dele ds fh coh nes Sees is 60 D226 Quality CONUOl c hccit Sct ectlace cxleas a hacen lee oa cee O haut 60 5300 Foundation INSUlation naa a a a a a ai e 61 53107 INSPECtiOncand Repa Siennine rie E RE A A E e ERE 61 5311 Moisture Inspection and Repait cccccccccccssccsscessessseescescesscesecsecssecssecssecsscesseesseesseeseens 61 5312 Wall Moisture Barrier rerin iginn o E E E A E 62 5313 Electrical Safeguard S meisneri i a E R E E 62 5314 Treatment of Other HAZasrds ccccceccccccccesessseseesce
108. ade When this situation occurs for a space heating appliance the client must be left with an alternative source of heat Whenever a technician questions the safety of a situation they should consult a supervisor Examples of this type of situation are 1 Major Natural Gas Leak Gas can be smelled more than two feet from the gas line 2 Major Propane or Natural Gas Leak Propane can be smelled more than three feet from the leaking fitting 3 Clogged or Disconnected Flue A clogged or disconnected flue that cannot be fixed causing significant spillage of combustion products into a heated space or working area of the technician 4 Backdrafting or Significant Spillage Any backdrafting of combustion products in combination with carbon monoxide indications which cannot be fixed 5 Cracked Furnace Heat Exchanger Any visually identified cracked heat exchanger leaking combustion products in combination with positive carbon monoxide or others 6 Other Hazards Any other situation or combination of situations which the technician or supervisor judges hazardous to the health of the client or others 2412 Non Emergency One day Follow up Required Some situations may not warrant discontinuing testing or shutting down the heating system but are serious enough to require attention within twenty four hours Examples of this type of situation are 1 Cracked Heat Exchanger Visually identified cracked heat exchanger that is leaking c
109. age 120 for instructions North Dakota Weatherization Field Standards January 2003 Page 117 11000 Diagnostic Testing Procedures a If possible convert the unconditioned space where the ducts are located to a conditioned space making sure the air and thermal barriers are installed effectively i Demonstrate the effectiveness of this weatherization work by performing a house to zone pressure and flow test if possible before and after converting the unconditioned space to a conditioned space ii Always repair disconnected ducts in the space iii It is preferred to seal the shell of the space rather than sealing the duct joints b If the unconditioned space is impossible to convert to a conditioned space or it is determined impractical to convert to a conditioned space i Use a duct blower to determine the duct leakage to the outdoors Examples of these types of unconditioned spaces include crawlspaces unconditioned basements attics attached or tuck under garages and exterior walls ii Repair seal with mastic and thermally insulate ducts in unconditioned spaces to at least an R 8 iii Goal Reduce duct leakage to the outdoors as measured with a duct blower and blower door to 10 percent of conditioned floor area 2 For ducts located in conditioned spaces such as a basement or crawlspace a Perform a house to zone pressure and flow test if conditions warrant to determine if the space in question is conditione
110. ake to repay its cost in energy savings Perimeter Pull A technique used in attics previously insulated with batt insulation The batts are cut back 2 feet from the eaves and the area is insulated with blown insulation to ensure coverage over the outer wall top plate and to prevent wind washing of the insulation under the existing batts Perlite A heat expanded mineral used for insulation Perm A measurement of how much water vapor a material will let pass through it per unit of time under a specified pressure difference Pilot Tube A device for measuring fluid velocity An instrument placed in a moving fluid and used along with a manometer to measure fluid velocity Plaster A plastic mixture of sand lime and Portland cement spread over wood or metal lathe to form the interior surfaces of walls and ceilings Plate A piece framing member installed horizontally to which the vertical studs in a wall frame are attached North Dakota Weatherization Field Standards January 2003 Page 188 12000 Glossary Plenum The section of ductwork that connects the air handler to the main supply duct Plywood Laminated wood sheeting with layers cross grained to each other Polyethylene A plastic made by the polymerization of ethylene used in making translucent lightweight and tough plastics films insulations vapor retarders air barriers etc Polyisocyanurate Plastic foam insulation sold in sheets similar in composition t
111. al Safety Data Sheets MSDS for all hazardous material should be made available to all employees kept on file at the subgrantee offices and on all jobs sites The MSDS catalog should contain the following i Specific identity of chemical and common name ii Physical and chemical characteristics iii Known acute and chronic health effects and related heath effects iv Precautionary measures v Exposure limits vi Identification of carcinogens vii First aid procedures d Hazardous Material Communication Policy implementation Such implementation should include the following i Information on where hazardous materials are located and where they are used ii Employee Information and Training on Hazardous Materials North Dakota Weatherization Field Standards January 2003 Page 17 2000 Health and Safety Requirements 2200 Health and Safety Procedures iii Training conducted at the time of initial assignment or whenever a new hazard is introduced to the work environment iv How to read and interpret labels and MSDS v How to obtain and use hazard information such as 4 The hazards of the chemical 5 Protective measures e A Hazardous Chemicals List should be made available to employees f Subgrantees should have written hazard evaluation procedures g Subgrantees should have written materials on workplace Hazards 2212 Required Subgrantee Walk Away Policy There are some situations in which a subgran
112. aling The crew only needs to enter the correct information into the Weatherization Cost Effective Guidelines WCEG program of the ZipTest Pro software package for the TI 86 calculator North Dakota Weatherization Field Standards January 2003 Page 104 11000 Diagnostic Testing Procedures 11320 Procedure 1 2 a b a Prior to any blower door guided air sealing using the Cost Effective Guidelines CEG program Complete all required Pre guideline air sealing as defined in Section 11200 just above Complete all key juncture air sealing and insulation installation Use of the CEG program After completing the above if dwelling CFMso is more than 200 percent of the calculated Building Tightness Limit BTL do more air sealing before using Cost Effective Guideline CEG program If dwelling CFMso is from 125 percent to 199 percent of BTL use CEG program for air sealing guidance If dwelling CFMso is from 125 percent to 199 percent of BTL do not quit air sealing until performing zone pressure diagnostics testing in appropriate areas even if CEG program indicates to stop air sealing If CFMso is more than 150 percent of BTL the CEG limit has not been reached and it is the end of the day the air sealing work shall not be considered complete In such a case the dwelling must be considered in progress and the crew must return for more air sealing However if the dwelling CFMso is less than 150 perce
113. alls and ceilings made of gypsum rock powder packaged between two sheets of heavy building paper Also called sheetrock gyprock or gypboard Ground Fault Circuit Interrupter GFI or GFCI An electrical connection device that breaks a circuit if a short occurs These are required for all exterior use of electrical equipment or when an electrical outlet is located near a water source North Dakota Weatherization Field Standards January 2003 Page 182 12000 Glossary _H Hazardous condition A situation that is causing a danger to the client crew contractor that exists before is created by or is exacerbated by weatherization For example a dwelling could have a moisture problem that is allowing biological hazards molds viruses bacteria etc to flourish Another example would be allowing fiberglass to enter the living space due to improperly fastened or sealed ductwork Hazardous material A particular substance that is considered a danger to the client crew contractor HHS United States Department of Health and Human Services Heat anticipator A very small electric heater in a thermostat that causes the thermostat to turn off before room temperature reaches the thermostat setting so that the house does not overheat from heat remaining in the furnace and distribution system after the burner shuts off Heat capacity The quantity of heat required to produce a unit of temperature change Heat exchanger The area in a
114. am in the ZipTest Pro software package This procedure will calculate the required CFM of a continuously operating exhaust fan The input and output data for this procedure are listed in Table 11 2 Please refer to the ZipTest Pro software instruction manual for detailed instructions and examples Note The following sizing procedure is not appropriate for balanced ventilation systems that is mechanically driven exhaust and supply air i House CFMso The house CFMbso after all weatherization work has been completed ii Flow exponent Enter the default value 0 65 iii Weather factor For Bismarck and surrounding area enter 0 99 For Fargo and surrounding area enter 1 10 There are no other weather factor values available for North Dakota iv House square footage This is the occupied square feet of the dwelling If the basement is finished and or used as living space include it in your whole house blower door test door to basement open and include the basement as part of this square feet calculation North Dakota Weatherization Field Standards January 2003 Page 107 11000 Diagnostic Testing Procedures Table 11 2 BTLa Procedure Inputs Outputs Input Data Output Values a House CFMso 1 Effective leakage area ELA in b Flow exponent 0 65 default 2 Equivalent leakage area in c Weather factor 3 Estimated natural CFM d House square footage 4 Estimated natural ACH e House
115. and administrative personnel The North Dakota Weatherization Field Standards will be used to implement and document these changes as they occur From time to time these standards may be amended and or revised by the North Dakota Department of Commerce Division of Community Services DCS to reflect changes in State or Federal regulations new technology and or innovative approaches to weatherization The Division of Community Services encourages subgrantees to submit suggested changes to these standards that will result in the delivery of services in a more cost effective manner while maintaining a high quality of work Amendments to the standards will not be effective until thirty days after they have been approved by the DCS except under the following conditions 1 State or Federal law or regulation changes mandate immediate implementation or 2 State office personnel determine that an emergency situation exists and the proposed amendment and or revision is necessary for protecting the health and safety of clients or crew members The Field Standards are organized to easily accommodate changes In this sense the Weatherization Field Standards will never be complete In preparing this addition some topics were almost certainly overlooked The manual will become more complete and comprehensive with use as omissions are identified and new topics are addressed with new policy or guidance North Dakota Weatherization Field Standards Janua
116. antee may withhold weatherization services under the following conditions a A dwelling unit is vacant North Dakota Weatherization Field Standards January 2003 Page 18 2000 Health and Safety Requirements 2200 Health and Safety Procedures b A dwelling unit is for sale c A dwelling unit is scheduled for demolition d A dwelling unit is found to have serious structural problems that would make weatherization impossible or impractical e A dwelling unit is deemed by the auditor to pose a threat to the health or safety of the crew or subcontractor f A mobile home is improperly installed for example inadequate supports g A dwelling unit is uninhabitable for example such as a burned out apartment h When there are minor children in the dwelling but no adult client or adult agent of the client at the time of the estimate or at any other time subgrantee personnel must enter the dwelling i An adult client or adult agent of the client need not be present if the estimator or crew foreman feel satisfied with a signed note from an adult client or adult agent of the client stating their permission to enter the dwelling occupied by the minor children i The client is uncooperative with the weatherization subgrantee either in demanding that certain work be done and refusing higher priority work which is needed or by being abusive to the work crew or subcontractor or by being unreasonable in allowing access to the unit
117. approximately 200 F where appropriate Some units should not be tested in this manner 4 Heat rise Heat rise should fall within the manufacturer s recommended temperature range If this information is not available the heat rise should fall within a 40 to 80 F range The furnace must not cycle on the high limit switch 5 Draft spillage All furnaces must be properly vented All non sealed combustion furnaces must be tested with a draft testing device and meet the acceptable draft requirements There must be no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All furnaces with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 6 Carbon monoxide CO All non sealed combustion heating systems must be tested with a CO testing meter Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 7 Ductwork Return ductwork located in the combustion appliance zone CAZ shall be sealed if necessary so that it does not create hazardous negative pressure in the CAZ during air handler operation Please refer to worst case draft testing procedures in Section 11700 on page 111 Please refer to Section 11922 on page 117 for details of duct testing and repair 8 Filter A clean filter should be installed in a location where the client can locate it for the purpose of replacing or cleaning it 9 Sizin
118. ased on Using a Pressure Pan to Diagnose Duct Leakage by The Energy Conservatory March 2002 This document is available on the Internet at www energyconservatory com manuals html When you get to this page find Pressure Pan User Manual Before fully opening or changing the position of balancing dampers mark their position so that they can be returned to that position after the pressure pan testing North Dakota Weatherization Field Standards January 2003 Page 119 11000 Diagnostic Testing Procedures 8 Make sure the pressure pan is properly connected to the manometer The proper connection should be reading the space under the pressure pan with reference to the main dwelling pressure 9 Place the pressure pan completely over each register and grille in conditioned areas a Ifa register or grille is larger than the pressure pan cover the oversized portion of the register or grille with tape while the reading is recorded b If access to a register or grille is difficult for example at a kitchen counter kick space cover the entire opening with tape and insert the pressure probe through the tape near the center of the taped opening while the reading is recorded c When two registers or grilles are closely connected to the same duct run for example two registers on opposite sides of the same partition wall seal one and use the pressure pan on the other unsealed register or grille Onc
119. asurement of air movement in cubic feet past a certain point or through a certain structure per minute CFMso0 The number of cubic feet per minute of air flowing through the fan housing of a blower door when the house pressure is 50 Pa 0 2 inches of water column This figure is the most common and accurate way of comparing the tightness of buildings that are tested using a blower door CFMnat The number of cubic feet of air flowing through a house from indoors to outdoors during typical natural conditions This figure can be roughly estimated using a blower door using the LBL Lawrence Berkeley Labs infiltration model _D Degree days DD A measure of the temperature element of climate produced by summing the temperature differences between the inside 65 F and the daily average outside temperature for a one year period Demand The peak need for electrical energy Some utilities levy a monthly charge for demand Density The weight of a material divided by its volume usually measured in pounds per cubic foot DOE The United States Department of Energy Depressurize To lower the pressure in an enclosed area with respect to a reference pressure Depressurization Tightness Limit DTL A calculation procedure expressed in units of CFMso performed to estimate the building tightness level at which combustion appliances might backdraft when the house is under conditions of worst case depressurization A BD
120. at and capable of being molded to the outside surface of common pipe size or preformed to fit standard pipe diameters If the product is preformed dimensions shall be appropriate for the pipe size North Dakota Weatherization Field Standards January 2003 Page 81 7000 Mobile Home Requirements 71100 Combustion Systems 4 Ifthe insulation is exposed to the weather it shall be resistant to degradation from moisture ultra violet light and extremes in temperature or a jacket or facing shall be installed that protects the insulation from these conditions 71000 Water Heater Closets 1 Ata minimum water heater closets with an exterior wall must be treated as follows a The exterior access door and associated exterior walls of closets containing electric or gas water heaters shall be insulated if possible If the door and associated wall can be insulated the water heater shall not be wrapped with insulation i Cover air vents if they are present in the door or associated exterior wall ii Bring combustion air from underneath the belly or through the skirting by installing an appropriately sized metal chute with a rodent barrier b If it is not possible to insulate the closet door and associated wall area i The tank should be wrapped with an insulation blanket Please refer to Section 4330 on page 48 for instructions ii Large holes in the closet walls that allow air leakage into the interior must be sealed iii All pl
121. ate location 6 A heat shield must be installed when it is determined that a venting system is too close to combustible materials or the venting system must be moved to ensure proper clearance 7 All fuel lines must be tested for fuel leaks both outdoors and indoors starting at the meter or LP tank 8 Mobile home furnaces on which a new limit switch has been installed should have the new limit switch wired in series with the existing limit switch 9 In cases where an unvented combustion appliance is used the appliance should be removed or vented prior to weatherization completion 10 Remove all non functioning humidifiers from forced air furnace systems with prior client approval 11 All gas valves should have at least a single safety If a gas valve has no safety then the subgrantee should replace the gas valve with the most cost effective replacement a A 100 safety millivolt gas valve b A100 safety 24 volt gas valve c Aremote bulb gas valve North Dakota Weatherization Field Standards January 2003 Page 26 12 13 14 15 16 17 18 19 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs When there is a suspicion that the pilot safety system is not functioning properly subgrantees should perform a simple test of the pilot safety device to ensure that it is functioning properly It is recommended subgrantees use a non contact voltage sen
122. atherization community 2 Amendments to the Field Standards will not become effective until thirty 30 calendar days from the date of DCS approval and subgrantee notification except under the following conditions where amendments or revisions will become effective immediately a State or Federal law or regulation changes mandate immediate implementation or b The WAP State Office determines that an emergency situation exists such as a potential threat to life limb or personal property and the proposed amendment and or revision is necessary for the protection of the health and welfare of North Dakota citizens 3 Any subgrantee personnel may submit comments and suggested changes or revisions to these Standards to the Division of Community Services at any time Suggested changes to the Standards must be accompanied by supporting documentation 1500 Monitoring by State 1510 General Procedure 1 Periodically the DCS WAP Administrator or a representative will conduct monitoring visits to subgrantees for the purpose of determining that all materials and services reported on the Building Work Order BWO have been installed or completed 2 The effectiveness safety workmanship overall appearance and compliance with the WAP Field Standards will be evaluated during the monitoring visit 3 Dwelling units inspected will be selected from a list of clients that will allow a comprehensive of a sample North Dakota Weatherization Field
123. att A blanket of preformed insulation generally 14 5 or 22 5 wide and varying in thickness from 3 5 to 9 BDL See Building Depressurization Limit Belly return A configuration found in some mobile homes that uses the belly cavity as the return side of the distribution system Belt Tension proper adjustment of Minimum of one inch play per side The belt should not slip on the pulleys Benefit to Cost Ratio BCR See Savings to Investment Ratio SIR Bimetal element A metal spring lever or disc made of two dissimilar metals that expand and contract at different rates as the temperature around them changes This movement operates a switch in the control circuit of a heating or cooling device Blocking A building element or material used to prevent movement into or through building cavities Blow down Removing water from a boiler to remove sediment and suspended particulates Blower The squirrel cage fan in a furnace or air handler Blower door A calibrated device to measure the air tightness of a building by pressurizing or depressurizing the building and measuring the flow through the fan Blown insulation A loose fill insulation that is blown into attics and building cavities using an insulation blowing machine North Dakota Weatherization Field Standards January 2003 Page 173 12000 Glossary Boot A duct section that connects between a duct and a register floor or
124. ave a CFM rating of at least 90 3 Exhaust system ductwork shall consist of galvanized metal rigid aluminum PVC or aluminum flex duct under six 6 feet in length North Dakota Weatherization Field Standards January 2003 Page 23 2000 Health and Safety Requirements 2200 Health and Safety Procedures 4 Exhaust system ductwork shall be extended through the roof sidewall or soffit to the outdoors and be insulated 5 For intermittently operated exhaust fans controls may be by a push button switch timer a separate on off wall switch an occupancy sensor switch or hard wiring with a primary light switch such as in a bathroom Controls should be installed in the same room as the fan 2262 New Systems Continuous Operation 1 Ventilation systems are recommended in dwellings that are tighter than the calculated Building Tightness Limit see page 105 or have a pre existing moisture problem or other indoor air quality problem that cannot be corrected by any other means 2 Ventilation systems are allowed in units that will receive substantial reductions in air leakage and as a result may encounter moisture problems Exhaust fans installed for these reasons shall be operated continuously when the dwelling is closed up to the outdoor air during winter mechanical heating or summer mechanical cooling 3 For proper sizing of fans for dwelling that are tighter than the calculated Building Tightness Limit refer to page 105 Building Tight
125. ave no access such as porch roofs This lack of access prevents you from creating a temporary hole between the zone and the dwelling or the zone and the outdoors Because of this you cannot determine the flow between secondary zone and the dwelling or outdoors If you are able to insert a pressure hose into the zone you can measure the pressure difference between the zone and the dwelling or outdoors 111020 Test Procedures 1 Use the ZipTest Pro software package loaded in the TI 86 calculator for these tests unless instructed otherwise 2 Perform the whole house blower door test before doing any zone pressure diagnostics ZPD testing a If you cannot reach a house pressure difference of 50 Pascals and or there are obvious large leaks repair large leaks before any ZPD testing You must be able to reach a house pressure difference of 50 Pascals in order to do ZPD testing both before and after you create a temporary hole for the add a hole test North Dakota Weatherization Field Standards January 2003 Page 124 11000 Diagnostic Testing Procedures b If the whole house CFMso is less than the Building Tightness Limit CFMs and the attic is well vented do not perform any ZPD testing 3 Identify zone types ZPD can be done on all primary zones including attics crawlspaces basements and attached or tuck under garages ZPD can also be done on some secondary zones such as porch roofs and cantilevers where sealing off from the ho
126. be installed as a replacement for non repairable existing storm windows when determined to be cost effective by the approved North Dakota energy audit program 9 Metal storm windows should not come in contact with frames or fasteners constructed of dissimilar metals 10 Subgrantee installed storm windows in kitchens baths and other high moisture areas must be operable if they provide the only source of ventilation into the space 11 Operable storm windows shall move freely North Dakota Weatherization Field Standards January 2003 Page 70 6000 Window and Door Replacements 6300 Doors 6220 Movable Window Insulation Systems 1 Movable window insulation systems are only allowed based on the following a The systems are determined to be cost effective by an approved the energy audit b For technical reasons no interior or exterior storm windows are able be installed c All other weatherization measures with a higher SIR values exist or have been installed and d The client has been trained in the operation of the movable insulation system 6230 Non Allowable Window Materials 1 Tinted window films all sun shields and heat reflective materials are not allowable WAP expenses 6300 Doors 6310 Door Assessment 1 Doors must be assessed to determine the need for repair for air leakage reduction and comfort related problems 2 All existing egress doors must remain operable 3 Non operable doors may receive air leakage w
127. bon monoxide emissions from a burner can only be determined with an instrument that measures CO and Oz it cannot be determined by visual inspection of the flames 5 The oven should be kept clean at all times There is evidence that dirty ovens emit more CO than clean ovens 6 The flames from gas burners both natural gas and propane should burn steadily with a clear blue flame The flame normally makes a slight hissing sound but it should not sound like a blowtorch If the flames burn yellow and or burn loudly or irregularly the gas range should be serviced as soon as possible Avoid using a bad burner until it is properly adjusted or repaired 111130 Measurement of Emissions 111131 Safety During the Test Period 1 While performing the emissions testing monitor CO concentrations in the kitchen Shut down the burner s discontinue testing and open windows and or doors if indoor air concentrations rise above 35 ppm 111132 Oven Bake Burner Testing 1 Read and fully understand all instrument manufacture s instructions before using the instrument 2 Test the oven bake burner only If the oven has a separate broil burner do not test it a The natural flow of combustion gases upward from the oven and out of the oven vent must not be disrupted during the emissions testing process Clear the oven of all pots pans or other objects Clear area below oven of all objects Leave oven shelves in place If the vent holes on the
128. ccessesessecseesecsesecseeesceseeeessecsecsecsseeesaeesesaeesesaeeneenees 49 4360 Water Heater Fuel Conversions 0 c cc cccccscesecssesscsseesceseeseeseeseesecseeseceeeesesecsesaeesesesseeaees 49 4400 Combustion Appliance Requirement eccccceccececeeeeeeeeaeceeeeeeeseeeneaeeeeeeeeeeseesnnaeess 50 4410 Combustion Appliance Work Documentation 0 ccc cssccseesseesceescesscesecesecsecsseesseenes 50 5000 Insulation Requirements ccccceceeeeseeeeeeeeeeeeeeeeeeeanee cesses sens eeaneeseeeeeeseseesenaneeseeeens 51 5100 AAttio INSULATION ee oz a aa a a a dgeatecantdeus macs aa a aaa Eiaa aa aaia aaia 51 5110 Inspection and Repairs s ssssnssssesssesessssssssissssessssesssssessisseseessestensssesrossestisnestessesrsressenres 51 5111 Moisture Inspection and Repait cccccccccccssccsscesseesseesceescesscesscssecssecssecssecsseessseseseseeessens 51 5112 Electrical Safeguards ooo cece cecceccccseseessesss senses seeseesecseesecueessesseesesaecsecsecseeessecsesaeeaeeaesaaens 51 5113 Treatment Of Other HAZArds cccccecccccccscesesseeseeseeecseeseesceesesaeesessecsecsecseenesseesesaeeaeeeeneens 52 DATE SAUICSACCOSS A ceva Cera ee RT aoe tae SE Baa Sat a eda aa en le eS td 52 5115 Insulation Shielding and BIOCKING cccccccccessessesecsseeseeseeseseesessecaeesecsseesaeesesaeeaseeeneens 52 5120 Installation Methods for Attic Insulation 00 eee ecceesceeesceseeseesecseesecnseeeeaeesenseeseese
129. ce closet door or ii Another restriction in the ductwork North Dakota Weatherization Field Standards January 2003 Page 79 g 7000 Mobile Home Requirements 7800 Sidewall Insulation If the temperature rise is less than the recommended range there might be i Significant leakage at the furnace plenum joint or ii Significant leakage in the duct between the furnace and your supply air temperature measurement If the temperature rise is out of range repair the cause by removing any restriction to airflow or repairing leaks Check the temperature rise again Once the temperature rise is within the recommended range move on to the next step 5 Measure room to room pressure differences and relieve pressure 6 7800 7810 1 differences that are greater than 3 Pascals a Close all interior doors Measure the pressure difference across all interior doors Pressure test and record measurements for all rooms with reference to the main body of the house b Take action if room pressure difference exceeds 3 Pascals Provide pressure relief by i Opening the door slightly while measuring the pressure difference across the door Open the door until the pressure difference is 3 Pascals or less and measure the square inches of opening This is the number of square inches 1 The door must be undercut 2 A direct grille offset grilles or jump duct must be installed properly relieve the pressure imbalance caused by t
130. ce is a powerful tool for finding air leaks when used in conjunction with a blower door Subgrantees are advised to use infrared scanning whenever the equipment is available and the use is practical Foundation Insulation This section addresses rim joist insulation basement wall insulation and crawlspace wall insulation 5310 Inspection and Repairs f a e 5 a Electrical and plumbing utilities b C An inspection from the interior and exterior of the home should be performed prior to installing insulation This inspection should identify all potential hazards and needed repairs An inspection from the exterior of the home should include an examination of the following Building construction details Foundation type and condition The location of electrical gas oil and phone lines Plumbing pipes Existing moisture and drainage problems Existing structural problems An inspection from the interior of the home should include an examination of the following Interior foundation wall type and condition Moisture problems Make any necessary repairs before installing insulation 5311 Moisture Inspection and Repair All units must be inspected for problems associated with excess moisture Identification of potential moisture problems shall be documented in the client file Repair any moisture problems that will degrade or diminish the effectiveness of weatherization measures For crawlspaces whenev
131. change a liquid like oil into a mist to improve the combustion process 0 O Oxygen Ohm A unit of measure of electrical resistance One volt can produce a current of one ampere through a resistance on one ohm North Dakota Weatherization Field Standards January 2003 Page 187 12000 Glossary Orifice A hole in a gas pipe where gas exits the pipe to be mixed with air in a burner before combustion in a heating device The size of the orifice will help determine the flow rate OTL See Overall Tightness Limit Output capacity The conversion rate of useful heat or work that a device produces after waste involved in the energy transfer is accounted for Overall Tightness Limit OTL The OTL is expressed in units of CFMso The OTL considers both the building tightness limit and the DTL For example if the building tightness limit is 1300 CFMso and the DTL is 1400 CFMso the OTL for the house is 1400 CFMsgo satisfying both the building tightness limit and the DTL Oxygen Depletion Sensor ODS A safety device for unvented vent free combustion heaters that shuts off gas when oxygen is depleted _p Parts per million ppm The unit commonly used to represent the degree of pollutant concentration where the concentrations are small Pascal Pa A metric unit of measurement of air pressure 2 5Pa 0 01 inches of water column Payback period The number of years that an investment in energy conservation will t
132. combustion analyzer measure the oxygen O2 percentage in the flue gas Measure the net stack temperature at the same spot s the oxygen percentage was measured Determine the steady state efficiency from these values Proceed to measuring the draft 2 Draft measurement a Gas systems Proper draft hole test location is two feet down steam from draft hood or draft diverter in straight section of the flue pipe or if the two feet measurement falls on an elbow in the first straight section of flue pipe beyond two feet Acceptable draft values for atmospheric gas systems are listed in Table 8 2 Table 8 2 Acceptable Draft Test Readings for Various Outdoor Atmospheric Gas Appliances Only Temperature Ranges F lt 20 21 40 41 60 61 80 gt 80 Pascals 5 4 3 2 1 Water Column inches 02 016 012 008 004 b Oil systems i iti Overtire draft This draft reading is taken just above the oil burner through an opening into the firing chamber if present The overfire draft reading should be 5 Pascals or 0 02 inches of water gauge W G It should not be less Flue pipe or breech draft This draft reading should be taken through an appropriately sized hole usually 1 4 inch or slightly larger drilled about 12 inches from the heating unit and at least 6 inches before the barometric damper draft regulator This draft reading should be from 10 to 15 Pascals 0 04 to
133. d Standards January 2003 Page 42 4000 General Heat Waste Measures 4100 Air Sealing Requirements weatherization installations have been completed Please refer to Section 11800 on page 115 for detailed instructions 4140 Penetrations and Holes 1 All penetrations through the exterior sidewalls of a unit that are sealed must be sealed from the interior with the exception of a Foundations which may be sealed from either interior or exterior b Any hole or penetration requiring sealing to keep out rain or snow 2 Before blown insulation is installed all obvious leaks should be sealed These leaks might include but are not limited to Open top plates usually in balloon frame dwellings Chases around masonry and metal chimneys Chases around plumbing stacks Missing window sashes or lights Doors that are misaligned in their frames Missing drywall or other interior finish materials Missing or misaligned attic doors or hatches Missing or misaligned bulkhead doors in basements Other obvious holes or leaks in the dwelling envelope that i Will be unquestionable cost effective to seal ii Will prevent the structure from damage or iii Are necessary for the proper installation of insulation 3 Openings in recessed light fixtures must not be sealed unless the fixture is rated as an IC fixture 4 A fire rated material such as at least 26 gauge galvanized tin must be used to seal gaps around heat sources such as masonry or
134. d analyst believes for reasons beyond the scope of this protocol that a range burner s or the oven bake burner are emitting unacceptable levels of carbon monoxide inform client of the dangers and suggest that they have the range repaired or replaced 10 The following equations may be used for natural gas and propane if the analyst has collected carbon monoxide and carbon dioxide readings 12 2 For natural gas CO gir free X CO ppm i CO F CO gt CO or propane fee x m prop air fi CO PP Where CO carbon dioxide in combustion gas percentage North Dakota Weatherization Field Standards January 2003 Page 133 11000 Diagnostic Testing Procedures 111200 Electricity Efficiency Measures 111210 Refrigerator Replacement and Testing 111211 Introduction 1 Refrigerators will be judged by their estimated annual kWhr usage The kWhr usage will be estimated by a KWh yr usage data from the AHAM data base based on brand and model b KWh yr usage estimate based on refrigerator age or characteristics c KWh yr estimates from actual metering of the refrigerator with the Brultech ECM 1200 device 2 The basis for replacing a refrigerator or not is its Savings to Investment Ratio SIR value If the SIR value for replacement for a refrigerator is 1 00 or greater the refrigerator should be replaced Calculation of the SIR is done with the AREFR Equation Nugget in the Solver section of the Tl
135. d be installed as high in the gable as possible and positioned to provide cross ventilation Steps shall be taken to prevent wind washing of insulation around the attic vents 5134 Knee Wall Ventilation Kneewall attics or attic spaces that are sealed from other attic spaces may need to be ventilated as if they are a separate attic 5135 Attic Vent Area Guideline a When attic ventilation is installed the following guideline is allowed If air sealing work has been completed at the attic floor then one square foot of net free ventilation may be installed for every 300 square feet of attic floor area Sidewall Insulation 5210 Inspection and Repairs 1 ooo 7 An inspection from the interior and exterior of the home should be performed prior to installing insulation This inspection should identify all potential hazards and needed repairs An inspection from the exterior of the home should include an examination of the following Building construction details Siding type and condition The location of electrical gas oil and phone lines Plumbing pipes Existing moisture and drainage problems North Dakota Weatherization Field Standards January 2003 Page 56 5000 Insulation Requirements 5200 Sidewall Insulation f Existing structural problems 3 An inspection from the interior of the home should include an examination of the following Interior wall siding type and condition Electrical and plumbing utili
136. d in terms of its shell air barrier The house to zone pressure should be 20 Pascals or less b Visually inspect the conditioned space to ensure that the shell is properly insulated c If it is determined that weatherization work should be done to the shell of the conditioned space housing the ducts perform a house to zone pressure and flow test if possible before and after the work to quantify the effectiveness of the work i Always repair disconnected ducts in the space ii Sealing the shell of the space rather than sealing the duct joints is preferred iii Goal The house to zone pressure should be 20 Pascals or less North Dakota Weatherization Field Standards January 2003 Page 118 11000 Diagnostic Testing Procedures 11930 Pressure Pan Testing Procedures 11931 Introduction Pressure pan testing helps find ductwork leaks or disconnections that are connected to outdoor air Testing before and after duct sealing gives an indication of the effectiveness of sealing efforts Pressure pans do not read duct leakage directly they infer leakage to the outdoors by reading the pressure at individual registers 11932 Test Procedure 1 Install the blower door for a depressurization test Make sure the dwelling is set up for winter conditions 2 Open all interior doors including the door to the basement if the basement is considered conditioned space heating system water heater washer or dryer located there and it is d
137. d in a dwelling attic walls or basement the walls of the dwelling must not be insulated 3 If knob and tube wiring has been deactivated and the dwelling has been rewired with BX Romex or other approved electrical cable the attic and walls may be insulated without special precaution 2620 Ground Fault Interrupt Circuits 1 Ground fault circuit interrupter GFCI devices should be tested to ensure that they are working properly in dwelling bathrooms and kitchens 2 Ifa GFCI is not installed in a dwelling bathroom a subgrantee may have one installed if appropriate North Dakota Weatherization Field Standards January 2003 Page 37 2000 Health and Safety Requirements 2600 Electrical Safety North Dakota Weatherization Field Standards January 2003 Page 38 3000 Energy Audit Requirements 3200 Computerized Energy Audit 3000 Energy Audit Requirements 3100 3200 noaoo Field Audit A field audit of each unit must be conducted and documented in the unit file 2 The field audit must include a A health safety and hazards assessment of the unit as well as the combustion appliances A cost effective analysis using the approved energy audit system An air leakage ventilation assessment A ductwork assessment An insulation assessment and A general heat waste assessment The prescriptive installation of weatherization materials or repairs without appropriate justification from an approved energy audit is not al
138. de when you begin your metering or whether it enters defrost mode during metering Recording the temperature near the refrigerator in the kitchen with the main thermometer will help you determine the PAT see below 2 Determine and record the control setting in the fresh food compartment of refrigerators 3 Determine and record the control setting in the freezer compartment 4 Determine if the unit has an anti sweat feature if so turn it off for your metering and 5 Make sure the contents in the unit are secure so that if you must move the unit you will not upset any of the contents iii If itis necessary to move the refrigerator freezer to attach your meter or to check or clean the coils be careful of the floor material Carry a sturdy rug with you to help slide the unit in and out without damage to the floor a piece of 2 x 4 four feet long will often be useful as a lever for lifting and moving If the unit cannot be moved or moving it would potentially cause damage to the floor document the reason why no measurement was taken and move on to other audit procedures iv Listen for the refrigerator freezer compressor before you unplug the electrical cord to attach your meter a typical refrigerator compressor runs 25 50 of the time If you must unplug it during compressor operation to connect your meter wait about five minutes before plugging it back in to avoid experiencing compressor safety switch failure or go
139. determine whether a gas range oven bake burner is emitting unacceptable levels of carbon monoxide 2 The burner limit for this protocol for carbon monoxide emissions is ppm CO air free for oven bake burners Oven broil burners are not required to be tested 3 This method covers residential grade floor mounted gas ranges drop in range top burners and built in ovens only If drop in range top burners or built in ovens are encountered follow the appropriate sections of this protocol for these appliances This protocol is not intended for use with 1 outdoor gas grilles 2 ovens in catalytic cleaning mode or 3 ovens vented into flues or chimneys 4 This protocol is not intended to determine whether gas ranges operate acceptably during misuse such as using a range for space heating 5 Accurately measuring CO emissions in the field is difficult due to the complex nature of combustion and dilution airflow patterns Use of this protocol can increase the accuracy of measurements to perhaps 30 percent This means that the protocol will sometimes result in false failures and false passes 6 Because there is a broad variety of gas ranges in the field there is the possibility that range characteristics not addressed in this protocol will be encountered When problems are discovered that are beyond the scope of this protocol it is important that the field analyst use his or her good judgment when deciding whether to pass or fail a burner
140. diation Heat energy that is transferred by electromagnetic or infrared light from one object to another Radiant heat flow can travel through a vacuum and other transparent materials Radon A radioactive gas that decomposes into radioactive particles Rafter A beam that gives form and support to a roof Rated ventilation A ventilation system that has been designed and installed under the guidelines established by the American Society of Heating Refrigeration and Air Conditioning Engineers ASHRAE Standard for Acceptable Indoor Air Quality Standard 62 Reflectance The ratio of lamination or radiant heat reflected from a given surface to the total light falling on it Also called reflectivity Refrigerant Any of various liquids that vaporize at a low temperature used in mechanical refrigeration Register A grille covering a duct supply outlet used to diffuse the airflow and sometimes control the flow Relative humidity The percent of moisture present in the air compared to the maximum amount possible at that given temperature Air that is saturated has 100 relative humidity Relay An automatic electrically operated switch Reset controller Adjusts fluid temperature or pressure in a central heating system according to outdoor air temperature RCS Residential Conservation Service Program Resistance The property of a material resisting the flow of electrical energy or heat energy North Dakota Weatherizat
141. ducts and plenums in conditioned spaces do not require thermal insulation a Exception There might be cases where duct insulation is appropriate in a conditioned area such as a basement For example if there is not adequate heat getting to a room the branch duct may be insulated for reasons of thermal comfort as long as the following items have been checked and or implemented first i There are no branch duct obstructions to airflow ii The branch duct balancing damper is fully open iii The branch duct air leakage has been checked and sealed if necessary Combustion or exhaust vents should not be insulated Install a minimum of R 8 preferably R 11 when possible on ducts and plenums a If ductwork is already insulated to a level of R 4 or greater no additional insulation is required however make appropriate repairs to the existing insulation 5 Insulation must have a flame spread rating no greater than 25 Only vinyl backed or reinforced foil duct wrap is to be used on ducts 7 The duct insulation should be installed with the vapor barrier on the outside which will serve to cover the insulation 8 Do not wrap duct insulation so tightly that it is excessively compressed It should not be compressed more than 50 percent of normal thickness 9 Maintain a minimum of 6 inches between duct pipe insulation and all heat sources 10 Install protective covering around the insulation where required by local regulations
142. during air handler operation Please refer to worst case draft testing procedures in Section 11700 on page 111 Please refer to Section 11922 on page 117 for details of duct testing and repair Filter A clean filter should be installed in a location where the client can locate it for the purpose of replacing or cleaning it Blower or air handler The air handler blower should be visually inspected to determine if it requires cleaning If necessary it should be cleaned The motor and blower must be oiled where applicable Central air conditioning coils should be accessed and cleaned whenever airflow is excessively restricted by dirt on the coil Unused or non functional central air conditioning coils should be removed to increase airflow Other cleaning Other necessary cleaning should be done where applicable including air intakes burners furnace controls heat exchangers blower compartment and return air plenum registers and grilles 8132 Gravity Space Wall and Floor Furnaces All gravity space wall and floor furnaces should confirm to the following standards 1 2 Gas fired unit requirements a Gas Leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or sh
143. e a 1 200 watt 120 volt hair dryer pulls 10 amperes of electric current watts divided by volts Aquastat A heating control that switches the burner or the circulator pump in a hydronic heating system Atmospheric appliances A heating device that takes its combustion air from the surrounding room air Also know as open combustion heater _B Backdrafting Continuous spillage of combustion gases from a vented combustion appliance into the living space Backdraft damper A damper installed near a fan that allows air to flow in only one direction and prevents reverse flow when the fan is off Backer rod Polyethylene foam rope used as a backer for caulking Baffle A plate or strip designed to retard or redirect the flow of flue gases North Dakota Weatherization Field Standards January 2003 Page 172 12000 Glossary Balance point The outdoor temperature at which no heating is needed to maintain inside temperatures Ballast A coil of wire or electronic device that provides a high starting voltage for a lamp and limits the current from flowing through it Balloon framing A method of construction in which the vertical framing members studs are continuous pieces running the entire height of the wall Band joist See Rim joist Barometric vent damper a device installed in the heating unit vent system to control draft Usually used on oil fueled units or gas units with power burners B
144. e DCS WAP Administrator must be consulted before beginning work on heating systems other than those specifically addressed in these standards 8200 Air Conditioner Requirements 8210 Air Conditioner Work Documentation 1 Each client file must include documentation of all work and adjustments made to air conditioning equipment North Dakota Weatherization Field Standards January 2003 Page 94 8000 Combustion Appliances and Air Conditioners 8200 Air Conditioner Requirements 8220 Central Cooling Systems 1 Central cooling systems installed or replaced by subgrantees must be properly sized using the Manual J method by the Air Conditioning Contractors of America ACCA 2 Setup of new central air conditioners should include a Measurement and verification of proper airflow across the indoor coil b Ensuring proper refrigerant charge c Proper insulation and protection of refrigerant lines 8230 Window Air Conditioners 1 Window air conditioners installed or replaced by subgrantees must be properly sized according to the manufacturer s sizing chart usually located on the air conditioner box North Dakota Weatherization Field Standards January 2003 Page 95 8000 Combustion Appliances and Air Conditioners 8200 Air Conditioner Requirements North Dakota Weatherization Field Standards January 2003 Page 96 9000 9100 1 2 9000 Client Education 9100 Client Owner Education Recommendations Client Educatio
145. e of one degree Fahrenheit between its surfaces Confined space A space with a volume of less than 50 cubic feet per 1 000 Btu per hour of the total input rating of all combustion appliances installed in that space Contractor Any for profit not for profit or government entity that provides services to the program under contract not as a result of a grant of funds Control circuit A circuit whose work is switching a power circuit or opening an automatic valve Convection The transmission of heat by the actual movement of a fluid because of differences in temperature density etc Conventionally vented combustion appliance Combustion appliances that are characterized by atmospheric burners or natural draft Sealed or direct vent appliances are not conventionally vented Cooling load The maximum rate of heat removal required of an air conditioner when the outdoor temperature and humidity are at the highest expected level Cost effective Having an acceptable payback return on investment or savings to investment ratio Critical framing juncture An intersection of framing members and envelope components that require special attention during prep and installation of insulation North Dakota Weatherization Field Standards January 2003 Page 177 12000 Glossary Cross section A view of a building component drawn or imagined by cutting through the component CFM Cubic Feet per Minute A me
146. e optional Measures for which SIR values are greater than 1 24 are mandatory 3 Ifthe estimator is aware of more than one method of installing an energy conserving measure he must be able to justify in writing in the client file the selection of a method that does not have the highest SIR of the possible methods 4 lf repairs must be done in order to protect the integrity of an eligible measure the repair costs must be included with that measure s cost when the associated SIR calculated 5 Values and methods used for the State approved computerized audit will be periodically updated by either the subgrantee or statewide WAP committees as follows a Labor and material cost estimations used for the approved audit must be updated at least once each year and procedures used to derive these estimated costs must be documented by the subgrantee i Labor costs shall include fringe benefits as defined by the subgrantees accounting system ii Insulation cost estimates must be based on at least the manufacturers recommended minimum installation density b A technical committee made up of representatives from all the State subgrantees will determine and update each year i The typical service life of each energy saving measure The service life values must be discounted for use in the calculation of SIR in accordance with Department of Energy guidelines ii A consistent method determining the cost of fuels to be used in the WXEOR aud
147. e section of duct containing the leak A fabricated sheet metal sleeve can be inserted between the remaining pieces of crossover duct The metal sleeve must be attached to the flex duct crossover using ratcheting plastic straps North Dakota Weatherization Field Standards January 2003 Page 76 7000 Mobile Home Requirements 7600 Floor Belly Insulation e Crossover ductwork must be appropriately secured above the ground It may be supported by strapping or blocking f Flexible duct shall not be allowed to sag more than 12 inches for a span of eight feet 5 Fiberglass with the exception of duct board shall not be left exposed in ductwork 6 Any portion of the ductwork that extends beyond the last register or grille may be sealed 7 Trunk end sweeps are only allowed if it is determined that duct air leakage reduction will result from installation a End sweeps shall be made from sheet metal or aluminum valley flashing Two part foam may not be used unless it is adequately protected with a fifteen minute fired rated material Any metal sweeps must be mechanically attached to the duct system Gaps between the sweep and the duct must be sealed with mastic 7600 Floor Belly Insulation 7610 Floor Insulation Requirements 1 Belly rodent barriers must be inspected for general condition structural strength and major air leakage prior to installing insulation 2 Necessary belly rodent barrier repairs must be made if additio
148. e subgrantee should have the suspected material tested for asbestos content All subgrantee workers must wear high quality respirators any time asbestos is worked with When materials containing asbestos are worked with the asbestos materials should be dampened with water whenever possible to reduce the risk of airborne asbestos fibers Materials containing asbestos may not be cut drilled or disturbed in any manner that may cause asbestos fibers to become airborne North Dakota Weatherization Field Standards January 2003 Page 20 7 2000 Health and Safety Requirements 2200 Health and Safety Procedures Subgrantees may not use abatement contractors to remove or dispose of asbestos containing materials without prior authorization from the North Dakota Weatherization Program Administrator 2230 Client Health and Safety 1 Weatherization services must be provided in a manner that minimizes risk to clients Dwellings with unvented or vent free combustion appliances with the exception of gas ranges may not be weatherized until such appliances are properly vented according to the appropriate code to the outdoors Building owners and clients must be notified of any health or safety problems that require weatherization work to be terminated Documentation of this notification must be included in the job file It is preferred that subgrantees minimize or restrict the use of materials that may be hazardous to the client howeve
149. e you have taken the pressure pan reading remove the seal before proceeding to the next register Table 11 8 Pressure Pan Multipliers 10 Record the pressure pan readings House Zone Pressure Pan before and after duct sealing Pressure Multiplier activities to get an idea of sealing 50 1 0 effectiveness It will sometimes be i a useful to record readings during duct 35 142 sealing Always start your 30 166 measurements using the blower 25 2 0 door as a reference point and work 20 2 5 clockwise around the dwelling i 38 a If an unconditioned space is not 5 10 0 well connected to the outdoors e g unvented crawlspaces or unvented attics or has very large connections to the house then the unconditioned space will be at a pressure between the outside and inside house pressure during the blower door test In this case the pressure pan reading will show an artificially low number To correct this misleading number i With the dwelling at 50 Pascals measure the pressure difference between the main dwelling and the unconditioned space in question For example the house to zone pressure is 10 Pascals and the pressure pan reading is 2 0 Pascals ii Multiply the pressure pan reading by the multiplier in Table 11 8 to get the corrected and true reading For example multiply the pressure pan reading of 2 0 Pascals by the North Dakota Weatherization Field Standards January 2003 Page 120 11000 Diagnostic Testing Procedures mul
150. eadings after fifteen minutes of oven warm up time k Zero the instrument Bacharach Fyrite Pro according to the manufacturer s recommendations and prepare it for the test After fifteen minutes of burner warm up watch the emission measurement instrument for the minimum and then maximum CO ppm values The corresponding CO air free must be calculated and averaged for these minimum and maximum CO ppm readings The step by step details i After fifteen minutes of warm up watch for the minimum CO ppm value not the minimum CO air free value ii Record this minimum CO ppm value and the corresponding Oz percentage if your instrument automatically calculates CO air free record this value at the minimum CO ppm value iii Continue to watch the instrument until you detect the next maximum CO ppm value iv Record this maximum value and the corresponding O2 percentage if your instrument automatically calculates CO air free record this value at the maximum CO ppm value v Use the printing function on the emissions analyzer if available m Calculate the CO air free emission rates for the minimum and maximum CO ppm readings from the following equation Some emissions measurement instruments calculate CO air free automatically If this is the case this equation need not be used Instruments that calculate COsir free automatically do so with an integral computer chip The instrument reads CO and O2 and then calculate
151. eas of the mobile home envelope that separate conditioned from unconditioned space Ceiling Insulation Recessed lighting fixtures and fan light combinations that are Type IC rated by UL may be covered with insulation Ventilation fans may be covered with insulation if all holes and penetrations are sealed with a nonflammable sealant Thermal insulation shall not be installed within 3 inches of fans lights and heaters that are not Type IC All combustible insulation materials shall be kept at least 2 inches from metal flues and chimneys The ceiling and roof condition must be inspected and assessed before installing insulation If cost effective ceilings that appear weak shall be repaired or reinforced especially in heavy snow load areas before installing insulation Combustion appliance vent blocking is required when insulation is installed except where combustion air is pulled through a combustion air pipe that surrounds the combustion appliance vent pipe concentric pipe system Follow manufacture s recommendation for clearances between vent and combustible insulation Ceiling insulation must be installed in such a manner that ensures complete coverage over heated areas except those areas requiring and receiving a technical waiver Average insulation densities for loose fill insulation installed in mobile home ceiling cavities shall be a Fiberglass 1 25 to 1 75 pounds per cubic foot 10 Mobile home ceili
152. ections or any portion of these functions if such action will expose workers to conditions regarded as unsafe or unhealthy as determined by OSHA Construction Industry Standards Expenditure of weatherization funds for materials protective clothing respirators medical exams proper tools and equipment and other items or activities related to the health and safety of clients and workers are allowable health and safety costs under the North Dakota WAP f When in doubt subgrantees should seek consultation services from an OSHA subsidized professional safety consultant See OSHA Publication 3047 Consultation Service for the Employer for identifying hazards and developing a worker health and safety program Subgrantees must have a Subgrantee Health and Safety Policy in place to protect worker health and safety This program should contain the following a MSDS on the job site and available to medical personnel b Employees should know where to go for treatment c A written procedure for reporting medical emergencies North Dakota Weatherization Field Standards January 2003 Page 15 2000 Health and Safety Requirements 2200 Health and Safety Procedures d A written procedure for reporting non emergency accidents e Provision for prompt medical attention for serious injuries f Prompt transportation or a system for contacting an ambulance in the case of a serious emergency g Telephone numbers of physicians hospitals o
153. ed The benefits of periodically draining a small amount of water from a newer water heater should be explained to the client This procedure is not recommended on older tanks that have never been drained and or have drain valves that are difficult to operate Client education should be provided with the installation of a forced air furnace filter including a demonstration to the client of how to remove clean and reinstall the furnace filter The benefits of a lower thermostat setting and night set backs must be explained to the client North Dakota Weatherization Field Standards January 2003 Page 97 9000 Client Education 9100 Client Owner Education Recommendations North Dakota Weatherization Field Standards January 2003 Page 98 10000 Electric Efficiency Measures 10200 Compact Fluorescent Lamp CFL Replacement 10000 Electric Efficiency Measures 10100 Refrigerator Analysis and Replacement 1 10200 When refrigerators are replaced with Federal funds documentation must be in the client file This documentation must include the details used for the cost effectiveness analysis SIR for the replacement Replacing a refrigerator must yield a savings to investment ratio SIR of at least 1 00 to qualify for replacement Refer to Section 111210 on page 134 for instructions on refrigerator analysis and replacement Refrigerators taken out of service must be discarded in an environmentally sensitive way Old units contai
154. eeseeecseeseeecseeeeseceeeeeeeceenaeeeceeeeeeeeeeeaeeesees 103 North Dakota Weatherization Field Standards January 2003 v 11200 Blower Door Guided Air Sealing cccceeecceeeeeeeenreeeeeineeeeetneeeeetieeeeeetieeeeeteeeeetaa 104 11210 Pre Guideline and Guideline Air S aling 2 0 ccc cccccessescesecseeseceseeeceseeseeeeseeeeeneesees 104 11300 Weatherization Cost Effective Guidelines nnnnnnnnnnnnrrrnrntrnrrrrrrrrrrrrrrrrrerrrrrere 104 11310 IIMTODUCTION saninin anni eA AENEA EEE ENA AAN EEEN EE EE 104 11320 PEOCC dE a i E Er OAA E G EA OE aak 105 11400 Building Tightness Limit Procedures and Calculation c ccccceeeeeeneeeeeesneeeeeeaes 105 11410 MNO GUCTIOMN 5 sxs ssesssvescevze st seehawe dees castsnsyhesesedidesa suaviovestexdoacshvnstesscxdaesveyeavedherdaaesheurevessdveetens 105 11420 General Procedure ee eeeseesessessescseeseeecseeaesecsesaesecasaesecaeaeeecaeaeeecaeeaeeecaseaeercaeeaeereateas 105 11430 Calculation Procedures sserrep inrukken inen aanu Knina DAAE EKE NNa A E KNEE EA 106 11500 Depressurization Tightness Limit DTL sseeseeeeeseeeseerreseerrssserrsseerrssrirrssrerrssrennns 108 11510 ITO DUCTION rani eiea a EA R AAA E RE AR T a 108 11520 Calculation Procedure io eienn e E E AREE le ese 109 11600 Overall Tightness Limit OTL ee I RER 110 11700 Worst Case Draft Testing tegaririieii tinii eiiieaenii ee ianiai eee Eaa 111 11710 troduction ee nai nier iiini Eri A EENE Ee A EENE
155. egularly 2 Oil fired unit requirements North Dakota Weatherization Field Standards January 2003 Page 84 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Thermostat gas valve The furnace must have a thermostat in working condition and must be compatible with the control circuit type 24 volt vs millivolt For 24 volt system type the anticipator on the thermostat should be set equal to the measured control circuit amperage Non electric setback thermostats with an adjustable anticipator may be installed under the following conditions a Client lifestyle indicates potential for energy savings b Client is receptive to the installation and c Appropriate client education is provided on the operation of the thermostat 4 Fan on fan off deally the fan off temperature is between 95 and 100 F but never below 80 F The fan on target range is between fan off and 130 F but never to exceed 140 F 5 Limit switch This switch should shut the gas valve off at approximately 200 F where appropriate Some units should not be tested in this manner 6 Heat rise Heat rise should fall within the manufacturer s recommended tempe
156. eld Standards January 2003 Page 110 11000 Diagnostic Testing Procedures Table 11 5 Use of Tightness Limit Procedures BTL DTL and OTL for North Dakota Weatherization Determination of Overall Tightness Limit Pre Weatherization Activit Notes 1 Blower door test expressed as CFMso 2 Building tightness limit BTL The higher of values 2 3 Depressurization tightness limit DTL and 3 is used as the 4 Determine OTL 1300 CFMso house overall tightness limit OTL Post Weatherization Activity 5 Blower door test 1050 CFMzs expressed as CFM 6 If whole house CFMsgp is below building Install 40 CFM exhaust fan tightness limit install continuously operating exhaust ventilation 7 If whole house CFMsgo is below Worst case draft test depressurization tightness limit mitigate will validate possible draft problem 8 Perform worst case draft test Correct This must always be any draft problems Check for venting done if non sealed not code violations direct vent combustion appliances operate in the dwelling 11700 Worst Case Draft Testing 11710 Introduction The purpose of worst case draft testing is to ensure the proper venting of all vented combustion devices in a dwelling This testing must always be done after all other weatherization work has been completed In site built houses with ductwork in a combustion appliance zone it should also be done before weatherization work begins The procedure
157. ems in a dwelling the most common one being wasted energy Other problems can include thermal discomfort substandard indoor air quality and combustion venting failure Ductwork leakage can take place 1 within the confines of the conditioned envelope of the building or 2 to and from the outdoors Leakage to or from the outdoors wastes more energy than leakage within the confines of the thermal envelope Mobile home ducts and site built homes with ductwork in crawl spaces or attics are susceptible to leakage to and from the outdoors On the other hand although duct leakage within the conditioned envelope usually does not have a significant energy impact it might impose a hazard to occupant health by causing poor indoor air quality or backdrafting of combustion North Dakota Weatherization Field Standards January 2003 Page 116 appliances 11000 Diagnostic Testing Procedures These potential problems are addressed on site by an IAQ appraisal and by performing the worst case draft test refer to page 111 Pressure pan and duct blower testing must be done in some dwellings to determine if ducts are leaking to a significant degree to or from the outdoors 11920 Duct Leakage Standards The following standards shall be followed for mobile homes including double wide mobile homes and site built homes including manufactured housing 11921 Mobile Homes 1 2 a b 3 a 4 a b If there is a belly retu
158. eneees 53 5121 Insulation Coverage ANd DeNSity cccccccccessessesecsseececeeseseesessecseesecseeeeessecsesaeeaseesneens 54 5122 Enclosed Ceiling Cavities oo cccccccccccssscseeseeseescesecssescenseesssseesessecaessesseeessaecaesascneseeneens 55 5123 Storage SPACO reenen Wana ah nese Rh Ane Aa BRAS 55 5124 Attic ACCESS INSULATION 00 cccecccccescenseescnseeseuseeseesecssesccnsesseusessesecsessecnseecsaecsesnscseeaeenaeas 55 5125 DUCTWOTK INSUIATION siesena E a E e E E AS 55 5126 Drill and Blow Patching ccecccccccssesscssessseseeseeseeseusecssesecssesesseesessecseesecseeeesseceesaeeaeeeeneens 55 5130 Attic Ventilatii Msn onennn n nnen ane e e EE E RE EE 55 51317 Ge neralinstalati M srcnoreeenenen na e R a E E ENa 55 51327 High LOW VGNISE sese n A a E a a e E a e a ee AS 56 5133 Gable VENUS rre na e a E a a bh teach eel aad gawk a es eee 56 5134 Knee Wall VentilatioN inneas en a a a a a E E a h E 56 5135 Attic Vent Area Guideline cecccccesccsseescsssesceseessesecssesecseeseeseescenscsessecnseceeesesaeeascnesassnteas 56 5200 Sidewall INSUlAtLION 0 0 a a aaa a a a a a i aa na a 56 5210 Inspection and Repairs s ssssesssssesesesesesssssisosressssrsrsssesrissereessssrensesesossesresreseessssreressesees 56 5211 Moisture Inspection and Repait uu ccccccccccccssccsseesseesceessesscesscesscssecaecssecssecsseesssesssesseseens 57 5212 Electrical Safeguards 0 eee cecccccccsseteessesses cesses secscesecaeesec
159. ential repair for air leakage reduction and comfort related problems 2 All existing egress windows must remain operable 3 Non operable windows may receive air leakage work based on the guidelines in Section 4100 6120 Window Replacements 1 The following window air leakage measures may be installed based on the guidelines in Section 4100 a Missing broken and severely cracked windows b Glazing replacement prime and storm windows c Minor cracked windows caulked or taped prime and storm windows d Window frame repair or replacement e Window hardware adjustment or replacement f Window replacement 2 Double glazed replacement window units are preferred if their cost is justified by the WXEOR audit 3 Subgrantee installed storm windows in kitchens baths and other high moisture areas should be operable if they provide the only source of fresh air ventilation into the space 4 Window replacements must be based primarily on an energy conservation decision process rather than client requests or aesthetics 6130 Window Air Leakage 1 Window air leakage measures such as caulking and weather stripping must be determined to be cost effective based on the guidelines in Section 4100 6140 Window Repairs 1 When feasible window repairs must be done instead of replacement whenever the total cost of the repair is less than seventy five percent of the cost of a replacement window North Dakota Weatherization Field
160. er conditions warrant install a 6 mil polyethylene moisture barrier on the dirt floor This barrier should overlap at least 6 inches at joints and the polyethylene should extend 6 inches up the crawlspace wall Note If the entire dirt floor is not accessible cover as much as possible North Dakota Weatherization Field Standards January 2003 Page 61 5000 Insulation Requirements 5300 Foundation Insulation 5 For basements with dirt floors wnenever feasible install a 6 mil polyethylene moisture barrier on the floor This barrier should overlap at least 6 inches at joints and the polyethylene should extend 6 inches up the crawlspace wall Lay rolled roofing on top of this polyethylene to provide a safe walkway for clients Talk with clients about where this rolled roofing should be placed and try to minimize the amount used 5312 Wall Moisture Barrier 1 If there is evidence of water leakage or moisture coming through the foundation wall from the exterior a moisture barrier must be attached to the sill plate in a manner that drains the moisture behind the insulation and covers the insulated section of the foundation or crawlspace wall 5313 Electrical Safeguards 1 Correct electrical problems such as unsafe wiring uncovered junction boxes or electrical situations which must be corrected prior to performing any other work If insulation exists ensure that wiring is in a safe and meets applicable codes 2 Knob and tube wiring
161. ermanently eliminate a hazard i e lead based paint Abatement strategies include removal of the hazardous materials replacement of building components containing the hazardous material enclosure or encapsulation All of these strategies require proper preparation cleanup waste disposal post abatement clearance testing and if applicable record keeping and monitoring Absorption Absorption is the process by which a substance can be readily taken into the body through the skin or membranes The best defense is to have a protective barrier between the substance and the skin Air Changes per Hour at 50 Pascals ACHs0 The number of times that the complete volume of a home is exchanged for outside air in one hour when a blower door depressurizes or pressurizes the home to 50 Pa Air Changes per Hour natural ACHnat The number of times the indoor air is exchanged with the outdoor air in one hour under natural driving forces It can be estimated with blower door use Air exchange The process where indoor air is replaced with the outdoor air through air leakage and ventilation One CFM out equals one CFM in Air Free Carbon Monoxide A method used to be able to compare CO readings with varying amounts of dilution air oxygen mixed in The air free method adjusts air content oxygen to zero Air handler A steel cabinet containing a blower with cooling and or heating coils connected to ducts which circulates indoor air
162. es electrical wiring and the electrical circuit breaker fuse box must be assessed for adequacy as follows a 12 Aluminum or 14 copper wiring must be protected with 15 amp fusing or breakers 2 Care must be taken to ensure that electrical wiring was not damaged during insulation work This can be done by testing electrical outlets and switches following completion of work 3 If there is reason to believe before or after installing wall insulation that a mobile home has aluminum wiring it is recommended that an electrical inspection be performed by a licensed electrician following the completion of the insulation work North Dakota Weatherization Field Standards January 2003 Page 73 7200 7000 Mobile Home Requirements 7200 Air Leakage Reduction Requirements The client should be asked about any known existing electrical problems Air Leakage Reduction Requirements 295 10 Except for the sealing of ductwork and large holes to prevent insulation from entering the living space all insulation measures should be completed before additional air sealing work is done whenever possible Air sealing activities should comply with the cost effective air sealing guidelines in Section 11300 on page 104 of these standards Air sealing activities should comply with the building tightness limit procedure and calculation Section 11400 on page 105 of these standards Air leakage reduction measures shall not be installed when the
163. es and absorbs heat Exacerbate To aggravate or make worse Exfiltration Air flowing out of a building from its conditioned space through the holes in the shell _F Fahrenheit A temperature scale for which water boils at 212 and freezes at 32 Fan control A bimetal thermostat that turns the furnace blower on and off as it senses the presence of heat Fan off temperature In a furnace the supply air temperature at which the fan control shuts down the distribution blower Fan on temperature In a furnace the supply air temperature at which the fan control activates the distribution blower Feeder wires The wires connecting the electric meter and main switch with the main panel box indoors Fenestration Window and door openings in a building s wall Fiberglass A fibrous material made by spinning molten glass Fill tube A plastic or metal tube used for its stiffness to blow insulation inside a building cavity and allows the insulation to be delivered at the extreme end of the Cavity Fire stop Framing member usually installed horizontally between studs designed to stop the spread of fire within a wall cavity Furring Thin wood strips fastened to a wall or ceiling surface as a nailing base for finish materials Flame safety control A control for avoiding fuel delivery in the event of no ignition Flammable Inflammable Combustible readily set on fire North Dakota Weatherization Field S
164. ess this is not possible If it is not possible documentation for the reason must be included in the client file b Insulate open cavity walls with fiberglass faced or unfaced using a density and thickness appropriate for the cavity Cover any flammable insulation facing or vapor barrier installed in a living space with a fifteen minute fire rated material such as 1 2 inch drywall taped once or inch plywood i A fifteen minute fired rated covering is not required in an unconditioned or conditioned space that is also a living space North Dakota Weatherization Field Standards January 2003 Page 59 N te 5000 Insulation Requirements 5200 Sidewall Insulation c Rigid plastic insulation may be used when appropriate Cover any rigid insulation or vapor barrier installed in a living space with a fifteen minute fire rated material such as inch drywall taped once or inch plywood i A fifteen minute fired rated covering is not required in an unconditioned or conditioned space that is also a living space For mobile home wall insulation materials refer to Section 7800 on page 80 5223 Insulation Coverage Density and Voids Sidewall insulation must be installed according to manufacturers recommended density and in such a manner that does not allow settling of the material to occur Determine the appropriate sidewall insulation technique s to be used Insulate all sidewalls to 3 25 3 75 Ibs ft with cell
165. etermined that the basement is part of the conditioned envelope 3 Make sure the furnace burner and air handler is off and will not start during the testing Remove the furnace filter and ensure that all registers grilles and balancing dampers are fully open a Exception When performing pressure pan testing in a mobile home block the filter opening by covering the filter with a plastic bag and reinserting the filter with the bag over it This blocks the filter opening and results in more accurate pressure pan testing When the testing is completed make sure to remove the plastic bag from around the filter 4 Temporarily seal outside combustion air inlets or ventilation system connections that are directly connected to the duct system These connections will show up as large leaks if not sealed prior to testing If supply ducts are located in a garage or other unconditioned space seal these registers so that the register opening does not show up as a duct leak 5 Open attics crawl spaces garages and other unconditioned spaces to the outdoor air as much as possible If the basement is being treated as an unconditioned space open it to the outdoor air 6 Only one person at a time should be taking pressure pan readings Having 2 registers in different parts of the duct covered by a pressure pan at the same time can affect readings 7 Depressurize the dwelling to 50 Pascals with the blower door 3 This section is primarily b
166. exhaust system ductwork shall consist of galvanized metal rigid aluminum PVC or aluminum flex duct under six 6 feet in length and insulated Carbon Monoxide Alarms When appropriate a carbon monoxide CO alarm should be installed in the client dwelling Follow the manufacturer s recommendation for location and installation of the alarm The CO alarm manufactured by G E Kerr Companies model CO Experts UL 1B is recommended G E Kerr Companies 19299 Katrina Lane Eldridge Missouri 65463 800 643 5377 gekerr tds net Combustion Appliance Safety Testing and Repairs All conventionally vented this excludes direct vent appliances combustion appliances must be tested for proper draft using the worst case draft procedures in Section 11700 on page 111 a Worst case draft testing MUST always be done after all weatherization measures are installed b Worst case draft testing is suggested before weatherization work begins in dwellings where i There is ductwork installed in a Combustion Appliance Zone CAZ or ii The auditor estimator has reason to believe that worst case draft testing would reveal useful information Subgrantees must seek to eliminate conditions where carbon monoxide levels are at or over the levels stated herein Carbon monoxide testing of space and water heating appliances must be done with a digital carbon monoxide meter before dilution air enters the vent system If there is a flue
167. expressed in units of CFMso used for ensuring adequate indoor air quality for the house occupants Two building tightness limit procedures used in the North Dakota Weatherization Program are BTL and BTLa Burner A device that facilitates the burning of a fossil fuel like gas or oil Bypass An air leakage site that allows air to leak out of a building passing around the air barrier and insulation ee Carbon dioxide CO A heavy colorless nonflammable gas formed by the oxidation of carbon by combustion and in respiration of plants and animals Carbon monoxide CO An odorless colorless tasteless and poisonous gas produced by incomplete combustion Caulking A mastic compound for filling joints and cracks CAZ See Combustion Appliance Zone Cellulose insulation Insulation packaged in bags for blowing made from newspaper or wood waste and treated with a fire retardant Chimney A building component designed for the sole purpose of assuring combustion by products are exhausted to the exterior of the building Circuit breaker A device that automatically disconnects an electrical circuit from electricity under a specified or abnormal condition of current flow Coefficient of Performance COP A heat pump or air conditioner s output in Watt hours of heat removed divided by Watt hours of electrical input Coil A snakelike piece of copper tubing surrounded by rows of aluminum fins that c
168. f a knee wall attic with the roof and ceiling surfaces attached to the rafters Soffit The underside of a roof overhang or a small lowered ceiling as above cabinets or a bathtub Solar gain Heat from the sun that is absorbed by a building Solenoid A magnetic device that moves a switch or valve stem Space heating Heating the living spaces of the home with a room heater or central heating system Spillage Temporary flow of combustion gases from a dilution device Stack effect The tendency for warm buoyant air to rise and leak out of the top of the house and be replaced by colder outside air entering from the bottom of the house Steady state efficiency SSE The efficiency of a heating appliance after an initial start up period and while the burner is operating that measures how much heat crosses the heat exchanger The steady state efficiency is measured by a combustion analyzer Steam trap An automatic valve that closes to trap steam in a radiator until it condenses North Dakota Weatherization Field Standards January 2003 Page 192 12000 Glossary Steam vent A bimetal operated air vent that allows air to leave steam piping and radiators but closes when exposed to steam Stud A vertical framing member used to build a wall Sub floor The sheathing over the floor joists and under the flooring Supply air Air that has been heated or cooled and is then moved through the ducts and out the supply register
169. f the chimney or gas vent upon the operation of the appliance Drywall Gypsum interior wallboard used to produce a smooth and level interior wall surface and to resist fire Also called gypsum wallboard and sheetrock Dry bulb temperature Normal ambient air temperature measured by a thermometer DTL See Depressurization Tightness Limit Duct blower A blower door like device used for testing duct leakiness and air flow Duct zone A building space or cavity that contains heating or cooling ducts EK Eave The part of a roof that projects beyond its supporting walls See also soffit Efficiency The ratio of output divided by input Efficacy The number of lumens produced by a watt used for lighting a lamp Used to describe lighting efficiency North Dakota Weatherization Field Standards January 2003 Page 179 12000 Glossary Electric service The electric meter and main switch usually located outside the building Emittance The rate that a material emits radiant energy from its surface Also called emissivity Encapsulation Any covering or coating that acts as a barrier between the hazard i e lead based paint and the environment the durability of which relies on adhesion and the integrity of existing bonds between any existing layers i e paint and the substrate Enclosure The use of rigid durable construction materials that are mechanically fastened to the substrate to act as a barrier between t
170. faced duct insulation is installed it is preferred that the facing be to the outside 2 Ductwork must be sealed appropriately with the proper materials duct mastic before insulation is installed Refer to Section 4220 on page 45 for instructions 3 Aminimum of 6 inches clearance between duct insulation and heat sources must be maintained unless the material is rated for closer proximity 5126 Drill and Blow Patching 1 Ifa drill and blow method is used for installing ceiling insulation holes must be properly plugged secured with adhesives and sealed 5130 Attic Ventilation 5131 General Installation 1 Ensure that existing vents are not blocked crushed or otherwise obstructed Correct problems as necessary or replace North Dakota Weatherization Field Standards January 2003 Page 55 2 5200 5000 Insulation Requirements 5200 Sidewall Insulation When attic insulation is installed a reasonable amount of attic ventilation should be in place unless local codes supersede When roof vents are installed they should be nailed and well sealed to the roof to prevent water leakage All ventilation openings should have suitable louvers and screens to prevent snow rain and insects from entering the attic 5132 High Low Vents Roof vents should be installed close to the peak Install high gable vents at least 3 feet above the soffit or gable vent used for low venting 5133 Gable Vents Gable end vents shoul
171. g Replacement Systems Actual appliance output must be determined and fall within a range of 100 to 130 percent of the required heat output of the heated space in its post weatherized condition 2422 Gravity Space Wall and Floor Furnaces All gravity space wall and floor furnaces should confirm to the following standards 1 Gas fired unit requirements North Dakota Weatherization Field Standards January 2003 Page 30 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs a Gas leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Clean
172. gas water heating If the client declines the conversion they must sign a statement in the client file waiving the water heater conversion With the use of the approved audit water heater fuel switching costs should be analyzed for cost effectiveness Water heater conversions must be completed by qualified personnel in compliance with applicable building codes Combustion Appliance Requirements The efficient operation of heating systems is a critical aspect of general heat waste Detailed combustion system safety and efficiency standards are found in Section 2300 beginning on page 25 and Section 8000 beginning on page 83 4410 Combustion Appliance Work Documentation 1 Each client file must include documentation of all efficiency work and adjustments made to the water heating and space heating combustion appliances when applicable Client file documentation must include information on the applicable combustion appliance efficiency tests see Section 8120 on page 83 and components see Section 8130 on page 84 Before the work on a combustion appliance may be considered complete a representative of the subgrantee must have completed a review of all combustion appliance forms and determined that the combustion appliance s meet the specifications in Sections 2000 and 8100 North Dakota Weatherization Field Standards January 2003 Page 50 5000 Insulation Requirements 5100 Attic Insulation 5000 Insulation Requirements 510
173. general heat waste item This means that no savings to investment ratio SIR must be calculated for ductwork treatment 4210 Ductwork Inspection Cleaning and Sealing 1 Ductwork must be tested and sealed according to Section 11900 on page 116 Duct Leakage Testing 2 Delivery and return ductwork must be cleaned as necessary to remove large objects and debris which may impede airflow through the heating system 3 Uncover any blocked registers or grilles Explain to the client the importance of maintaining the unrestricted airflow 4 As necessary delivery and return air grilles and registers must be removed and cleaned to remove excessive dirt and debris which may impede airflow 5 When appropriate remove ducts registers and grilles located in unconditioned spaces 6 Ductwork outside the thermal envelope of the dwelling must be connected and sealed 7 All accessible return air ductwork within a combustion appliance zone CAZ except gravity systems must be sealed enough to eliminate the potential for backdrafting Please refer to Section 11700 on page 111 for Worst Case Draft Testing procedures 8 Ducts and registers into non living areas of the structure may be sealed off with owner permission 9 Existing crawl space plenums should be abandoned and replaced with a sealed duct system 10 Cloth duct tape shall never be used for duct sealing 11 Ductwork sealing shall be done with mastic mesh tape sheet metal or
174. gle hung windows Two cam type locks per window sash are preferred Doors that are misaligned in their frames Missing drywall or other interior finish materials Missing or misaligned attic doors or hatches Missing or misaligned outside access doors in basements j Other obvious holes or leaks in the dwelling envelope that i Are cost effective to seal ii Prevent the structure from damage or iii Are necessary for the proper installation of insulation 2 All major tasks and measures should be completed before additional air leakage reduction measures are implemented 3 Whenever feasible and more cost effective the installation of tube filled high density cellulose insulation in sidewalls cathedral ceilings convective bypass areas open top plates drop ceilings and other air leakage locations is preferred over the use of air sealing techniques using air barrier materials for achieving reductions in air leakage 4 Cost effective guideline procedures should be used if appropriate during air sealing activities 5 Please refer to Section 11300 on page 104 for cost effective guideline procedure instructions 6 Documentation of materials labor and CFMso reductions must be retained in the client file Dango gt a gt 4130 Room to Room Pressures 1 Room to room pressure s should be measured in all rooms with forced air heating return or supply ducts and operable doors after all North Dakota Weatherization Fiel
175. guards 1 Correct electrical problems such as unsafe wiring uncovered junction boxes or electrical situations which must be corrected prior to performing any other work in floor If insulation exists ensure that wiring is in a safe and meets applicable codes 2 Do not use any metal mesh material such as chicken wire to support floor insulation This can cause an electrical hazard to the installers 3 Floor cavities containing active knob and tube wiring may not be insulated 5413 Treatment of Other Hazards 1 Use appropriate personal protective equipment and work practices in the presence of animal or insect hazards Ensure personal safety during work 2 Repair any rotted broken or damaged structural components 5414 Defining the Thermal Boundary 1 Ifthe basement or crawlspace houses a heating system and other appliance it should be treated as a conditioned area In this case the most common the basement or crawlspace walls are part of the boundary of the conditioned envelope Therefore it is preferred to air seal and insulate the basement or crawlspace walls because this North Dakota Weatherization Field Standards January 2003 Page 66 5000 Insulation Requirements 5400 Floor Insulation strategy encloses the furnace ducts pipes water heater and other appliances within the conditioned envelope 2 Basements and crawlspaces should be tested using zonal pressure diagnostics when the housing construction ty
176. h and Safety Procedures The employer shall provide training in the area of health and safety which will allow weatherization personnel to identify existing and potential threats to either the client s or crew s health and or safety Upon the identification of a threat to the client s health and or safety the client will be informed in writing as to the available options for dealing with this threat The employer shall provide for frequent and regular inspections of the job sites materials and equipment to be made by competent persons designated by the employers The employer shall tag all machines tools materials or equipment identified as being unsafe make them inoperable by locking the controls or physically remove them The employer shall permit only those employees qualified by training or experience to operate equipment and machinery The employer shall require its employees and its representatives to take all reasonable precautions against performing work on homes that will subject clients to health and safety risks At the time of initial client contact the weatherization worker will make a cursory evaluation of the individual health of the home s occupants In cases where a person s health is fragile and or the crew work activities constitute a health or safety hazard the occupants will be asked to leave during the work activities The DCS will allow technical waivers for non performance of audits installations and or insp
177. has this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Constant temperature boilers in single family residences must be converted to cold start type boilers whenever feasible 4 Thermostat gas valve The furnace must have a thermostat in working condition and must be compatible with the control circuit type 24 volt vs millivolt For 24 volt system type the anticipator on the thermostat should be set equal to the measured control circuit amperage Non electric setback thermostats with an adjustable anticipator may be installed under the following conditions a Client lifestyle indicates potential for energy savings b Client is receptive to the installation and c Appropriate client education is provided on the operation of the thermostat 5 Zone values Malfunctioning zone valves in intentionally heated areas must be made operable when feasible 6 Aquastat operation The aquastat control settings should be within the range of the manufacturer s recommendations 7 Draft Spillage All boilers must be properly vented All non sealed combustion boilers must be tested with a draft testing device and meet the acceptable draft requirements There must be
178. hat come equipped with such devices e Ladders and scaffolding are adequate for use have the proper weight rating and are constructed of non conductive material f That hearing ear protection is provided to individuals working around high decibel equipment or in high dust environments North Dakota Weatherization Field Standards January 2003 Page 16 2000 Health and Safety Requirements 2200 Health and Safety Procedures 12 It is preferred that the agencies have a Fire Protection Program This program should include the following a Fire extinguishers are provided and are i Located in the subgrantee offices and warehouse ii Located in each vehicle iii Inspected regularly b Training on fire extinguisher use c Fire emergency procedures 13 It is preferred that the agencies have a Job Hazards Identification Program This program should include the following a Investigation for job specific safety hazards b Hazard Communication Procedures that include the following i Written policies for dealing with job hazards ii All hazardous materials containers labeled with 1 Hazardous chemical contents 2 Hazard warning appropriate for employee protection 3 Legible and prominent labels on all containers iii Means of Communication for non Routine Tasks and unlabeled chemicals iv Ameans for the exchange of information between subgrantees and sub contractors regarding hazardous materials c Acatalog of Materi
179. he distribution system when the door is closed Return dwelling to the pre test condition Sidewall Insulation Sidewall Insulation Requirements Mobile home sidewalls should be insulated when the WXEOR audit shows it is cost effective The exterior siding and the interior wall materials must be inspected prior to the installation of insulation Weak or damaged wall materials must be repaired or reinforced prior to installing insulation Electrical precautions a Electrical wiring and the electrical circuit breaker fuse box must be assessed for adequacy please refer to Section 7120 on page 73 The client should be asked about any existing electrical problems especially in the wall outlets or switches North Dakota Weatherization Field Standards January 2003 Page 80 7000 Mobile Home Requirements 7900 Water Pipe Insulation If aluminum wiring is present extra care must be taken to insure the electrical system is not damaged during insulation work The following steps must be taken i Each cavity that contains an outlet switch or light fixture should be clearly identified and marked on the outside siding prior to the installation of the insulation and these cavities should be carefully tubed rather than stuffed with a batt or if excessive movement of the wires will still occur then the cavity should not be insulated and ii Each outlet switch or light fixture must be checked for proper operation immediately
180. he door replacement 4 Replacement doors may include one light pane of glass if the replaced door had one or more lights The cost any other extra features must be borne by the client North Dakota Weatherization Field Standards January 2003 Page 72 7000 Mobile Home Requirements 7100 Inspections and Repairs 7000 Mobile Home Requirements The same general procedures described in all other sections of these WAP Standards shall apply to mobile homes unless otherwise stated or stated more specifically in this section 7100 Inspections and Repairs 1 The structure shall be properly supported leveled and restrained if required at the homeowner s expense before weatherization measures are installed 2 Structural problems affecting insulation measures must be completed prior to installing insulation 3 Belly rodent barrier repairs must be repaired if insulation will be installed or if significant air leakage is occurring 7110 Moisture Problems 1 If moisture problems are present in the ceiling or sidewalls insulation should not be added until the moisture source and or site of penetration including leaks is identified and eliminated 2 Exhaust fan ducts terminating in ceiling cavities crawl spaces or other spaces shall be extended through to the outdoors and sealed to prevent exhaust air from returning back into the conditioned space 7120 Electrical Inspections 1 In units that are receiving insulation measur
181. he hazardous material i e lead based paint and the environment Energy A quantity of heat or work Energy audit The process of identifying energy conservation opportunities in buildings Energy consumption The conversion or transformation of potential energy into kinetic energy for heat light electricity etc Energy efficiency Term describing how efficiently a building component uses energy EEM Energy efficiency measure Energy efficiency ratio EER A measurement of energy efficiency for room air conditioners The EER is computed by dividing cooling capacity measured in British Thermal Units per hour Btuh by the watts of power See also Seasonal Energy Efficiency Rating SEER Envelope The building shell The exterior walls floor and roof assembly of a building Environmentally sensitive A person who is highly sensitive to pollutants often because of overexposure is said to be environmentally sensitive Evaporation The process of being changed into a vapor or gas at a temperature usually below the boiling point Evaporation is a cooling process Evaporative cooler A device for cooling homes in dry climates that cools the incoming air through the evaporation of water North Dakota Weatherization Field Standards January 2003 Page 180 12000 Glossary Evaporator The heat transfer coil of an air conditioner or heat pump that cools the surrounding air as the refrigerant inside the coil evaporat
182. his entry has to do with the degree to which the dwelling is exposed to wind Shielded is for buildings with significant blockage from the wind trees or other buildings normal is for buildings in a typical suburban setting obstructions to the wind around the building but not dense and exposed is for buildings with very little wind blockage meadow setting lake side etc f Ceiling height Sometimes the program will ask you to enter the average ceiling height If the program prompts you for this enter a North Dakota Weatherization Field Standards January 2003 Page 106 11000 Diagnostic Testing Procedures value that will give a good approximation of the volume of the dwelling when the program multiplies the ceiling height by the building square feet that you already entered 2 Try not to tighten the dwelling to a level below the BTL CFMso If the dwelling is tighter than the BTL CFMso before weatherization or if weatherization makes the dwelling tighter than the BTL CFMso use the BTLa procedure that is part of the BTL1 program in the ZipTest Pro software Exception In some cases dwellings need continuously operating ventilation even though they are looser than the BTL Examples include houses with difficult moisture problems In such cases install ventilation if it will help mitigate the moisture or other air quality problems a To properly size the exhaust ventilation use the BTLa procedure that is part of the BTL1 progr
183. iance Requirement cccccccceceeeeeeceeceeeeeeesececeaeceeeeeeeeeeescniaeeeeees 83 8110 Combustion Appliance Work Documentation c ccc cetcceseessecssecseeeseeeeceeseessceseceseenaees 83 8120 Combustion Efficiency and AnalySis ccc cceccccesecssesscsseesceseeseesecseesecseeeecsaeesenseeseeesneees 83 8130 Space Heating System RequireMents ccccccccccseescseescstscseesecseeeeceseeecsseesesecseeeesneees 84 8131 Forced Air Systems ecececccccccceseesseseessesceuseecscecsensecseesecseesessseesessecsessecseesecsaecsesaeeaeeaeeneens 84 8132 Gravity Space Wall and Floor Furnaces 0 0 cceccccccecesesseeteessesecseeecscesecaeeseeseeaseeeneens 86 8133 Mobile Home Sealed Combustion Furnace ccceccscessessseeseeseseescnseseeseeeseceeneeseeseeeaees 88 E34 BOS ria e e TE TE E TS 89 8135 Related Heating System Measurement Techniques cccccccceeceseeseeteeeeeteenseteeneens 91 8136 Storage Water Heater Inspection 0 0 0 cccccccccccssetecsseesseseeseeseesessecseesecseeseaeesesaeesseeensens 94 8137 Minimum Combustion Air Requirements ccccccccccccccccscesscesscesecssecssecsecssecsesesesesseseens 94 8138 All Other Heating Systems cccccccccccecscesesseeeeseeecseesesuseesesseesessecseesecseeesseaeeaesaeeaeeeeneens 94 8200 Air Conditioner Requirements ccccccececeeceeceeeeeeeeeccneaeeceeeeeeesecanaeceeeeeeesessicaeeeeeeeeess 94 8210 Air Conditioner Work Documentation sseseseeene
184. ier on the ground by the first person to go underneath is preferred in order to reduce health risks to the installers from animal feces The preferred methods of securing belly patches are through the use of adhesives clinch staples screws and lath strips whenever possible to provide a lasting patch Preferred patching materials for large holes in belly rodent barriers include insulated sheathing board fiberboard and nylon reinforced belly bottom material specifically manufactured for mobile homes Ductwork shall be inspected for insulation that might have accidentally entered during insulation work and the furnace is cycled to assess proper operation North Dakota Weatherization Field Standards January 2003 Page 78 7000 Mobile Home Requirements 7700 Mobile Home Belly Return Conversion 10 Upon completion of insulation work rim joists that have been drilled shall be plugged with a wood plug The plug shall be sealed in the hole with an adhesive compound 7700 Mobile Home Belly Return Conversion 7710 Introduction Belly return systems in mobile homes are notoriously leaky These leaky return systems can significantly increase the space heating costs and lead to thermal discomfort and indoor air quality problems All belly return systems shall be converted to a living space return system Follow the procedures below 7720 Conversion Process When converting a belly return system in a mobile home to a living space return fo
185. ing Imbalances of air distribution resulting from airflow differences between the supply side and return side of the ductwork for example a restricted return truck 11812 Test Procedure a 5 a 6 Set house up in winter operating mode Run a pressure hose from the main body of the house to the outdoors Set up a magnehelic gauge zeroed at 15 Pa or a digital pressure gauge in the main body of the house Record any pressure difference between the main body of the dwelling and the outdoors This is the reference background pressure A reference background pressure might be due to stack effect air leakage especially if it is cold outdoors or wind Turn on the air handler and measure the pressure of the main body of the house with reference to the outdoors If the pressure difference between the main body and the outdoors is different with the air handler on than with the air handler off there is probably some duct leakage to the outdoors i Either from the return side of the system the pressure difference of the dwelling with reference to outdoors will move toward positive when the air handler is activated or ii From the supply side of the system the pressure difference of the dwelling with reference to outdoors will move toward negative when the air handler is activated Close all interior doors North Dakota Weatherization Field Standards January 2003 Page 115 11000 Diagnostic Testing Procedures
186. ing a Savings to Investment Ratio of 1 Replacement of 75 Watt Incandescent CFL Watts 20 5 42 6 78 8 14 9 49 10 85 12 20 13 56 14 91 16 27 17 63 18 98 20 34 21 69 23 05 24 41 25 76 27 12 28 47 29 83 31 19 32 54 33 90 35 25 36 61 37 97 4 7 23 9 04 10 85 12 66 14 46 16 27 18 08 19 89 21 69 23 50 25 31 27 12 28 93 30 73 32 54 34 35 36 16 37 97 39 77 41 58 43 39 45 20 47 00 48 81 50 62 5 9 04 11 30 13 56 15 82 18 08 20 34 22 60 24 86 27 12 29 38 31 64 33 90 36 16 38 42 40 68 42 94 45 20 47 46 49 72 51 98 54 24 56 50 58 76 61 02 63 28 6 10 85 13 56 16 27 18 98 21 69 24 41 27 12 29 83 32 54 35 25 37 97 40 68 43 39 46 10 48 81 51 52 54 24 56 95 59 66 62 37 65 08 67 80 70 51 73 22 75 93 7 12 66 15 82 18 98 22 15 25 31 28 47 31 64 34 80 37 97 41 13 44 29 47 46 50 62 53 78 56 95 60 11 63 28 66 44 69 60 72 77 75 93 79 09 82 26 85 42 88 59 Page 153 Hours On Per 0 020 3 42 0 025 4 27 0 030 5 13 0 035 5 98 0 040 6 84 0 045 7 69 0 050 8 55 0 055 9 40 0 060 10 26 0 065 11 11 0 070 11 96 0 075 12 82 0 080 13 67 0 085 14 53 0 090 15 38 0 095 16 24 0 100 17 09 0 105 17 95 0 110 18 80 0 115 19 66 0 120 20 51 0 125 21 37 0 130 22 22 0 135 23 08 0
187. ing and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly c Limit switch Gravity furnaces must be equipped with a working high limit switch that shuts the fuel supply off at approximately 250 F 3 Draft spillage All furnaces must be properly vented All non sealed combustion furnaces must be tested with a draft testing device and meet the acceptable draft requirements There must be no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All furnaces with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 4 Carbon monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 5 Filter lf the manufacturer intended that the appliance have a filter it should be checked for cleanliness If a filter was not intended by the manufacturer one shall not be installed 6 Btu hour Input for gas freestanding wall and floor units Actual appliance output must be determined and fall within a range of 100 to 130 percent of the required heat output of the heated space in its post weatherized condition If the existing appliance output rating North Dakota Weatherization Field Standards January 2003 Page 31 2000 Health and Safety Re
188. ing repairs allocate one half the cost to wall insulation and one half to air leakage 3 If repair costs when factored together with the cost of eligible measures results in a SIR less than 1 00 neither the measures nor the repairs may be done entirely with WAP funds A subgrantee may use another source of funds to buy down the cost of repairs or request the client contribute funds to make the measure and the associated repairs eligible 4 Costs for repair or replacement of existing mechanical ventilation or installation of new exhaust fans or systems shall be included under health and safety therefore it will not be factored into the calculation of an SIR North Dakota Weatherization Field Standards January 2003 Page 12 2000 Health and Safety Requirements 1700 Subgrantee Final Inspections 2000 Health and Safety Requirements The health and safety of clients local subgrantee staff and subcontractors is a primary concern of the North Dakota Department of Commerce Division of Community Services DCS and its Weatherization Assistance subgrantees The weatherization assistance provided by local agencies has the potential to affect the operation of and the interaction among the various systems within clients homes It is therefore important that subgrantee staff remain aware of the potential hazards associated with the weatherization process and not compromise the integrity of the building when installing weatherization measures
189. ing the appliance will be depressurized during the duct blower test 11 Remove all filters from the duct system and air handler cabinet If the duct blower will be installed at a central return grille remove the filter from that grille 12 If ducts run through unconditioned spaces such as attics garages or crawlspaces open vents access panels or doors between these spaces and the outdoors to eliminate pressure changes during the test procedure This should also be done if the duct blower fan will be installed in an unconditioned space for example connected to an air handler in a garage or crawlspace 13 On the blower door connect the outdoor building pressure tube to the bottom tap on the 60 Pascal magnehelic gauge The other end of this tubing should either be run to the outdoors or to the unconditioned zone which contains the majority of the ductwork 14 Install the duct blower at the furnace or at a large return grille 15 Decide on the ring configuration for the duct blower 16 Connect the digital manometer correctly a Connect a pressure hose between a register and the input tap on side A of the digital pressure gauge Connect another pressure hose from the reference tap on side A to the interior of the dwelling This means that if you are in the garage the crawl space or in the attic you will need a pressure hose running under a door back to the interior of the house b Connect a red hose to the top tap
190. ion Field Standards January 2003 Page 190 12000 Glossary Retrofit An energy conservation measure that is applied to an existing building Also means the action of improving the thermal performance or maintenance of a building Return air Air circulating back to the furnace or central air conditioning unit from the house to be heated or cooled and supplied back to the living area Rim joist The outermost joist around the perimeter of the floor framing Rocking on the High Limit Refers to the gas burner being shut down by the high limit switch on a furnace instead of being properly activated by the fan on fan off control Room air conditioner A unitary air conditioner installed through a wall or window which cools the room by removing heat from the room and releasing it outdoors Sash A movable or stationary part of a window that frames a piece of glass Savings to Investment Ratio SIR For an energy saving measure the ratio of the savings over the investment cost including the discounting the investment value and escalation of fuel costs Sealed combustion appliance An appliance that draws combustion air from outdoors and has a sealed exhaust system Also called a direct vent appliance Seasonal energy efficiency ratio SEER A measurement of energy efficiency for central air conditioners The SEER is computed by dividing cooling capacity measured in Btuh by the Watts See also Energy Efficiency Rating
191. irect contact with the rim joints If the dwelling is balloon framed air seal the bottom of the stud cavities prior to installing insulation 7 Fiberglass insulation must not be left exposed in living areas 5421 Materials 1 Fiberglass faced or unfaced insulation is preferred for perimeter and floor insulation material 2 Itis preferred that vinyl faced insulation not be used for floor insulation 5422 Insulation Coverage 1 Floor insulation must be installed in a manner that provides as continuous a thermal boundary as possible North Dakota Weatherization Field Standards January 2003 Page 67 5000 Insulation Requirements 5400 Floor Insulation 2 Floor insulation must not be installed in a manner that excessively compresses the material 5423 Storage Space 1 Where the basement or crawlspace is being used for storage subgrantees should request the client remove storage items from the area 2 In cases where the client is physically unable to perform this task subgrantees should include the removal of items in the cost effective analysis of installing insulation and proceed with the measure if it is cost effective savings to investment ratio of 1 00 or greater 5424 Ducts and Pipes 1 When floor Insulation is installed ductwork below the floor insulation must be sealed and insulated Please refer to Section 4230 on page 46 for instructions 2 When floor Insulation is installed any water pipe that is susce
192. is complete a representative of the subgrantee must have finished a review of all combustion appliance forms and determined that the combustion appliance s meet the specifications in Sections 2000 and 8100 8120 Combustion Efficiency and Analysis Acceptable combustion test analysis values are found in Table 8 1 1 The steady state efficiency of a central heating system should be checked to determine a If itis in need of cleaning and tuning b If it functioning as efficiently as it was intended Refer to Section 8135 on page 91 for steady state efficiency testing instructions 2 Replace the heating system if it is determined with the WXEOR audit that it is cost effective to do so North Dakota Weatherization Field Standards January 2003 Page 83 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements Table 8 1 Acceptable Combustion Test Analysis Values Heating Unit Type Oxygen O2 Net Stack Temp Smoke Test Gas Atmospheric 4 9 percent 300 600 F NA Fan assisted 4 9 percent 300 480 F NA Condensing See man Info See man Info NA Standard Power Burner 4 9 percent 300 650 F NA Oil No 1 amp 2 Oil gun burner 4 9 percent 325 600 F 1 or less Flame Retention burner 4 7 percent 325 600 F 1 or less 8130 Space Heating System Requirements 1 Health and safety requirements for space heating systems are required Please refer to Section 23
193. it iii Maximum insulation levels North Dakota Weatherization Field Standards January 2003 Page 40 4000 General Heat Waste Measures 4100 Air Sealing Requirements 4000 General Heat Waste Measures Although no prescriptive list of treatments is applicable to every dwelling type there are treatments that are typically cost effective when applied to most dwellings For most all dwellings the order of work and applied measures is the same Perform pre installation energy audit Determine and seal major leakage areas in the building envelope Perform heating system efficiency measures Pressure balance seal and insulate ducts Insulate pipes and water heater Install energy saving shower heads OO ee A E These are the general heat waste measures 4100 Air Sealing Requirements Air sealing is a general heat waste item This means that no savings to investment ratio SIR must be calculated for air sealing work Before air leakage reduction measures are installed the building envelope must be defined and existing health and safety problems must be corrected Infrared scanning should be used as a tool to identify areas of excessive air leakage The infrared scanning device is a powerful tool for finding air leaks when used in conjunction with a blower door Subgrantees are advised to use infrared scanning whenever the equipment is available and the use is practical 4110 Blower Door Use 1 Pre and post weatherization
194. itch reversed to blow air into the dwelling Refer to your blower door manual for complete instructions For residential duct systems generally is recommend as the test pressure This pressure has been adopted by the majority of residential duct testing programs in the U S because 25 Pascals represents a typical operating pressure seen in many residential systems The instructions below assume the use of The Energy Conservatory Digital Manometer Model DG 3 and the Minneapolis Duct Blaster 11942 Test Procedure 1 Close all exterior doors and windows 2 Open all interior doors 3 Open doors to heated or conditioned spaces Close doors to all unconditioned spaces 4 Install blower door properly North Dakota Weatherization Field Standards January 2003 Page 121 11000 Diagnostic Testing Procedures 5 Shut down solid fuel appliances before activating blower door or duct blower 6 Adjust the HVAC system controls so that the air handler fan will not turn on during the duct blower test 7 Temporarily seal off all supply and return registers except any central return grille being used to connect the duct blower system to the duct system 8 Temporarily seal off all combustion air and ventilation air inlets that are directly connected to the duct system 9 Turn off all exhaust fans vented dryers and room air conditioners 10 Turn off all vented combustion appliances if there is a possibility that the space contain
195. lack of action that may result in a liability that threatens DCS financial assistance award funds An Inspection Visit Report that contains Major Findings a Requires an immediate response from the subgrantee receiving the finding Requires corrective action be taken May result in disallowed costs May result in an increased inspection monitoring rate May result in the requirement of additional training for the subgrantee personnel May result in the recommendation for High Risk Status for the subgrantee receiving the major finding s Please refer to Section 1530 Continued findings of this type may result in termination of DCS Weatherization Financial Assistance Award to the subgrantee 1542 Minor Findings 1 2 a b All other areas of noncompliance with these Standards not considered a Major Finding shall be considered as a Minor Finding Minor Findings Do not require a response unless specifically stated on an inspection visit report May require corrective action be taken if similar findings relating to major energy savings measures documentation requirements or health and safety measures are found to be repeated May be reclassified as a Major Finding if repeated that is if similar findings are found on more than two consecutive inspection visits May result in the requirement of additional training for the subgrantee personnel 1600 General Auditing and Weatherization Requirements 1
196. lamp tightly to the tubing to aid in heat transfer Cold Air Return Return side Ductwork through which house air is drawn for reheating during furnace cycle North Dakota Weatherization Field Standards January 2003 Page 175 12000 Glossary Color rendering index CRI A measurement of a light source s ability to render colors the same as sunlight CRI has a scale of 0 to 100 Color temperature A measurement of the warmness or coolness of a light source in the Kelvin temperature scale Combustible Susceptible to combustion inflammable any substance that will burn Combustible Gas Leak Detector A device for determining the presence and general location of combustible gases in the air Combustion The act or process of burning Oxygen fuel and a spark must be present for combustion to occur Combustion air Air required to chemically combine with a fuel during combustion to produce heat and flue gases mainly carbon dioxide and water vapor Combustion analyzer A device used to measure steady state efficiency of combustion heating units Combustion appliance Any appliance in which combustion occurs Combustion Appliance Zone CAZ The closed space or area which holds one or more combustion appliances Combustion chamber The area inside a heating unit where combustion takes place Compact fluorescent light CFL A small fluorescent light engineered to fit conventional incandesce
197. lation of Oil Burning Equipment NFPA 54 National Fuel Gas Code or NFPA 211 Standard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances 3 Combustion venting systems that are clogged disconnected improperly terminated or corroded to the point that they leak combustion products into the building must be repaired so that all combustion gases vent outside the building structure North Dakota Weatherization Field Standards January 2003 Page 35 2500 2600 2000 Health and Safety Requirements 2600 Electrical Safety 24213 Wood Coal Stoves and Fireplaces Whenever possible ask the client to start the wood or coal stove after the use of any blower door testing has been completed With the stove operating check around the solid fuel appliances for carbon monoxide CO emissions If there are any indications of CO leaking from the stove into the ambient air repair it or replace the stove if it is the primary means of space heating All venting systems and installations shall comply with the latest edition of NFPA 211 Standard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances The client shall be notified of any unsafe conditions Blower Door Safety If a dwelling is tightened to a CFMsp level less than the calculated Building Tightness Limit for that dwelling properly sized continuously operating mechanical ventilation is recommended Please refer to Section 11400 on page 105 for instructions abou
198. lic gauges zero all three of them If you are using a digital manometer record the background pressure reading This reading is usually a result of stack pressure When you depressurize the house with the blower door make sure to bring the house to a pressure that is 50 Pascals less than this background pressure For example if the background pressure is 3 Pascals depressurize the house to 53 Pascals If the background pressure is 5 Pascals depressurize the house to 55 Pascals Install the open end of the fan pressure gauge tube onto the blower door fan pressure tap Perform a one point test by depressurizing to 50 Pascals house pressure or the highest house pressure if unable to reach 50 Pascals Use the flow rings or low flow plate if the fan pressure is less than 20 Pascals If wind seems to be affecting test results take several one point tests and average the results Calculate the CFMso of the dwelling by using the markings on the magnehelic gauges digital gauges ZipTest Pro software in the TI 86 calculator or the blower door tables 11140 Blower Door Test Pressurization 1 Use the pressurization blower door test method only if a solid fuel heating unit or a drip pot oil burning space heater is in operation or for some other reason approved by the North Dakota weatherization program Install the door panel and hang the gauge assembly as it normally would be installed Attach a tube to the lower tap of the
199. llow the following procedures 1 Add a grill with at least 200 in of net free area to the furnace closet door 2 Block all floor return registers with a durable and tight air barrier being careful to find hidden registers under built ins behind furniture and in kitchen kick spaces 3 Completely block all floor openings in the furnace closet using a fire retardant air barrier being careful to not seal the combustion air inlet 4 Check the temperature rise of the furnace to ensure that the airflow is not restricted The temperature rise should be within the range specified on the manufacturer s label or between 40 and 80 F a Inspect the plenum furnace joint before measuring the temperature rise Repair this joint if needed before measuring temperature rise b Make sure all interior doors are open except the furnace closet door c Close the furnace closet door completely d Turn on the furnace and allow the temperature of the supply air to stabilize Measure the temperature at the register closest to the furnace making sure that the airflow to this register is not blocked and that there is no significant duct leakage between the furnace and your thermometer e Subtract the house air temperature the return air from the supply air temperature The difference is the temperature rise f If the temperature rise is greater than the recommended range the airflow is restricted by an i Undersized opening in the furna
200. lowed The thermal boundary of each dwelling must be determined during the field audit This includes the identification of each part of the thermal shell or envelope All building cavities that define the thermal boundary between the conditioned space and unconditioned must be inspected and measured for existing insulation R values structural integrity and the need for repairs The field audit must identify the most appropriate methods for a Reducing air leakage and convective bypasses and b Increasing the insulating value of thermal boundary surfaces when appropriate Computerized Energy Audit Each client file must have an accurate work order generated by the State approved computerized audit a Exception In the case of multi family units those for which the State approved audit does not address such as high rise units three stories or greater units with large central heating systems or units with large common areas agencies must work in consultation with the DCS WAP Administrator in the development of appropriate priority lists An acceptable work order means one for which all WAP installed measures have a Savings to Investment Ratio SIR of 1 00 or greater North Dakota Weatherization Field Standards January 2003 Page 39 3000 Energy Audit Requirements 3200 Computerized Energy Audit a Measures for which SIR values are less than 1 00 are ineligible b Measures for which SIR values are 1 00 to 1 24 ar
201. m must be created by 1 either removing the furnace closet door or installing an adequately sized return air grille s in the furnace closet door 2 allowing for return airflow under closed bedroom and bathroom doors and 3 sealing the return air grill in the furnace closet Please refer to Section 7700 on page 79 for more details about this conversion For duct leakage follow the instructions in Section 11900 on page 116 For ductwork sealing and insulation follow the instructions in Section 4200 on page 44 Crossover duct repair and treatment a Crossover ducts shall be installed in a manner that prevents compressions or sharp bends minimize stress at connections avoid standing water and avoid excessive length When skirting is not present the crossover duct shall be protected against rodents pets etc Flexible crossover ducts shall have a minimum R 8 insulation They shall be secured with mechanical fasteners for example stainless steel worm drive clamps plastic nylon straps applied with a tightening tool etc and sealed with mastic or aluminum foil backed butyl or equivalent pressure sensitive tape Existing flexible crossover duct with an insulation of R 4 or less which has been damaged may be replaced with new flexible duct with R 8 insulation The crossover must be replaced if the inner lining is brittle or made of mesh If in doubt replace it In many cases a leaky crossover can be repaired by cutting out th
202. mination of Moisture Problems Repair of moisture problems that might 1 result in health problems for the client 2 damage the structure over the short or long term or 3 diminish the effectiveness of the weatherization measures must be done before the weatherization job is completed 1 9295 Moisture problems can be reduced or eliminated by controlling the source of the moisture This can involve Installing a plastic ground cover on a crawispace floor Venting dryers to the outside of the building Sealing the foundation Providing positive drainage away from foundation Repairing the roof flashing gutter and downspout Educating the client about the sources of moisture that they are able to control North Dakota Weatherization Field Standards January 2003 Page 22 2000 Health and Safety Requirements 2200 Health and Safety Procedures 2 Moisture problems can be reduced or eliminated by ventilating areas where excessive moisture is produced such as bathrooms and kitchens This should include installation of a high quality exhaust fan in the subject area and informing the client of the related moisture issues and the proper operation and use of the fan See Section 2260 on page 23 for exhaust fan installation guidelines 2243 Dryer Vents 1 Electric dryers must be vented to the outdoors of the building whenever feasible gas dryer vents must always be vented to the outdoors 2 Mobile home dryer vents must be ex
203. n Client Owner Education Recommendations Client education should be provided during all phases of the weatherization process This includes but is not limited to a During client intake and scheduling b During the initial field audit c During the installation and repair of conservation measures d During the final job inspection Whenever possible demonstrate to educate Get the client involved in the educational process if possible The use of up to date written materials and videotapes are encouraged as client education materials Client education should include an explanation of what measures were installed In addition the client should be informed of any course of action required by the client or owner to maintain the measure and to gain the greatest benefit from it Client education should include a An explanation of installed energy saving measures b The advantages of repairing plumbing fixture leaks If the domestic water temperature is lowered for a storage water heater the client must be informed that lowering the temperature of the water will result in less thermal energy stored in the hot water therefore they will run out of hot water sooner d The use of an infrared camera with the client The benefits and drawbacks of the potential energy conservation measures should be provided to the client or owner Client or owner authorization for installation of all energy conservation measures is preferr
204. n air enters the vent system When the temperature has stabilized steady state conditions have been reached With combustion analyzer measure the oxygen O2 percentage in the flue gas Measure the net stack temperature at the same spot s the oxygen percentage was measured Determine the steady state efficiency from these values Proceed to measuring the draft b Oil systems Follow these procedures for conducting a steady state efficiency test of an oil heating system If a visual inspection indicates a cleaning and tuning is necessary do so before an efficiency test is taken Note Before the efficiency of an oil fired system is measured the smoke reading must be taken If the smoke reading is two or less proceed with the efficiency test If the smoke reading is more than one do not perform an efficiency test on the heating unit Instead order a cleaning and tuning for the burner and heating unit Inspect unit for hazardous conditions North Dakota Weatherization Field Standards January 2003 Page 91 Vi Vil 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements Locate an existing hole or drill and appropriate sized hole for measuring the breech draft This hole is also used for measuring the smoke the oxygen percentage and the temperature Allow unit to reach steady state after firing the burner When the temperature has stabilized steady state conditions have been reached With
205. n belly rodent barriers for the installation of insulation must be patched and sealed Rim joists may not be drilled if they are determined to be a structural component of the foundation support system Average insulation densities for loose fill insulation installed in mobile home bellies shall be a Fiberglass 1 25 to 1 75 pounds per cubic foot 10 Bellies shall not be dense packed or over filled so as to create undue stress on the belly rodent barrier 7620 Floor Insulation Methods 1 Fiberglass is the preferred insulation material for mobile home bellies Bellies that are 8 inches height and less in the center area shall be filled entirely with insulation blown at the required densities Bellies that are greater than 8 inches in height at the center area shall be insulated using the perimeter method only after attempts have been made to bring the rodent barrier closer to the floor above This must be done with care to avoid damaging the duct trunk line or water lines in the belly Access through the rim joist and the use of a metal fill tube is preferred for installing mobile home belly insulation whenever possible If bellies cannot be insulated through the rim joist and must be insulated from underneath the use of the insulation hose or a large diameter fill tube is preferred a 90 degree nozzle may not be used When insulation has to be installed from underneath the belly the installation of a 6 mil vapor barr
206. n during your metering period Studies have shown that the automatic defrost cycle increases annual steady state kWh by 8 10 percent Increasing the electric rate from 0 12 to 0 13 is an increase of 8 3 percent North Dakota Weatherization Field Standards January 2003 Page 138 11000 Diagnostic Testing Procedures a A member of the household is confined to a wheelchair b A member of the household has a handicap that makes it difficult to use a top freezer model or c Space limitations dictate the use of a side by side less door swing space required All replacement refrigerators shall be white in color Make sure the doors walls stairways etc will accommodate the moving of the existing and the new refrigerator Leave 1 2 inch for clearance The door to the refrigerator can be taken off if needed to gain 1 inches Engage in client education whether or not refrigerator s and or freezer s are being replaced Control settings in new refrigerators should be set to 2 by the vendor or according to the manufacturer s recommendation The client should be advised during client education that the settings of new refrigerators should be kept at 2 or at the manufacturer s recommended setting Any refrigerator supplier must properly dispose of existing appliance s and provide documentation of delivery and of proper disposal to the subgrantee 111220 Compact Fluorescent Bulb Replacement 111221 Introduction Many new com
207. n or by sealing the vinyl facing to the wall with adhesive caulk c Other insulation types and methods may be used with the approval of the DCS 8 Exterior wall installation a Foundation insulation may be installed on the exterior but this requires digging a one foot deep trench around the foundation If this method is used the rigid insulation must be extruded polystyrene at least one inch thick with an R 5 and it must be protected from sunlight and exterior mechanical damage by an appropriate rigid material 5326 Crawlspace Insulation 1 Separate an unconditioned crawl space from an adjoining conditioned basement with suitable materials 2 Seal all direct air leakage sites into the crawl space 3 Seal all bypasses and chases into and through the conditioned areas of the house 4 Route any exhaust fans to the outside using dampered vents and smooth bore rigid pipe and an appropriate termination fixture 5 Install perimeter insulation from the band joist to the crawl space floor The crawl space wall insulation shall extend downward 1 to a distance that is two feet below the exterior grade or 2 to the crawlspace floor and then horizontally across the floor for two feet which ever is appropriate Mechanically fasten the insulation and seal all joints with tape 5 An alternative method for installing interior perimeter insulation is to attach metal building insulation at the floor above the rim so that the blanket ex
208. n refrigerant gases that must be reclaimed at licensed stations No appliance taken out of service through this program may be returned to service by sale barter or for free Disposal and recycling fees must be added to the replacement cost and included in the cost effectiveness analysis for the determination of SIR Compact Fluorescent Lamp CFL Replacement When compact fluorescent lights are installed documentation must be in the client file This documentation must include the number and wattage replaced Refer to Section 111220 on page 139 for instructions on replacing incandescent bulbs with compact fluorescent lamps Installation of CFLs must be justified by the WXEOR audit North Dakota Weatherization Field Standards January 2003 Page 99 10000 Electric Efficiency Measures 10200 Compact Fluorescent Lamp CFL Replacement North Dakota Weatherization Field Standards January 2003 Page 100 11000 Diagnostic Testing Procedures 11000 Diagnostic Testing Procedures 11100 Blower Door Testing 11110 Introduction The use of a blower door as a weatherization tool is very important It can be used to determine the pre and post weatherization dwelling leakage rates giving the crew an accurate idea of the effectiveness of their air sealing efforts In addition the blower door is used for zone pressure testing and duct leakage testing Because the blower door is such an important weatherization tool it is very important tha
209. n time increases the annual consumption by 8 10 percent viii Record the temperature around the outside of the unit the present ambient temperature PAT If the unit is in a nook or air flow is obstructed around it try to get a reading on all sides ix Survey the area for sources of heat that are likely to influence refrigerator freezer energy use during the year Influencing items include adjacent ranges wood stoves solar gain from adjacent windows and heat distribution terminal devices Ask the occupants about the room temperature during the year The purpose of this quick survey is to guide your client education comments and to North Dakota Weatherization Field Standards January 2003 Page 137 11000 Diagnostic Testing Procedures help you determine the average annual ambient temperature AAAT x For the use of the Brultech EMC 1200 meter follow these guidelines 9 Brultech ECM 1200 settings To determine the kWh per year with the Brultech ECM 1200 set the electric rate to 0 12 for manual defrost or to 0 13 for automatic defrost page 24 in ECM 1200 manual and set the projection period to 30 days page 25 in ECM 1200 manual Rate 1 10 Reading the projected kWh yr With these settings when you read the cost of projected energy page 33 in ECM 1200 manual Cost of Projection of Energy just read the number without the decimal point this is the projected kWh yr consumption For example read 13 86 as 1
210. nace replace or clean the filter if it is dirty Check and clean the lint filter in the dryer Adjust the pressure gauge to 15 Pascals if using a magnehelic gauge when no hoses are connected to the pressure taps If using a digital manometer no adjustment is needed North Dakota Weatherization Field Standards January 2003 Page 112 10 11 12 13 14 15 16 17 18 19 11000 Diagnostic Testing Procedures Set up pressure hoses so that the pressure differential from CAZ with reference to the outdoors can be easily measured With the interior doors open and all combustion appliances and exhaust devices off record the Baseline Pressure in the CAZ This is the pressure in the CAZ resulting from stack effect air leakage Generally the colder the outdoor temperature the greater the magnitude of this value Turn on all exhaust devices except whole house exhaust fan and record the pressure in the CAZ The pressure created in the CAZ from the operation of these exhaust fans is the difference between this value and the Baseline Pressure measured in step 10 above Note If there is a whole house exhaust fan it is important to inform the client that operating this fan with the house closed up while combustion appliances are operating could be very hazardous If the house contains a furnace activate the blower Record the pressure reading in the CAZ with reference to the outdoors Caution If the only way to acti
211. nal insulation will be added or if holes in the belly allow significant air movement between the belly cavity and the outside atmosphere 3 Belly cavities must be inspected to determine the location of the plumbing any existing plumbing leaks and the R value of existing insulation Leaks should be fixed prior to weatherization 4 If water pipes are located at the bottom of the belly rodent barrier and it is not possible to get at least two inches of insulation between the pipes and the rodent barrier then the following must be attempted if cost effective and feasible a The pipes must either be insulated with additional insulation either inside the belly or on the exterior of the rodent barrier or b The pipes shall be moved closer to the floor above or the insulation above the pipes should be removed Note If these items cannot be completed then the belly shall be insulated using the perimeter method 5 Belly insulation shall be installed only after all repairs have been made major holes in the rodent barrier and floor have been sealed and all ductwork has been sealed according to Section 11900 on page 116 North Dakota Weatherization Field Standards January 2003 Page 77 7000 Mobile Home Requirements 7600 Floor Belly Insulation Belly insulation must be installed in such a manner that ensures complete coverage under heated areas except those areas requiring and receiving a technical waiver Holes that have been made i
212. ness Limits BTL 4 High quality exhaust fans shall be used that are rated for continuous use have a sone level of 1 5 or less are energy efficient and have a CFM of at least 90 5 Exhaust system ductwork shall consist of galvanized metal rigid aluminum PVC or aluminum flex duct under six 6 feet in length 6 Exhaust system ductwork shall be extended through the roof sidewall or soffit to the outdoors and be insulated 7 For continuously operated exhaust fans controls may be by a push button switch a separate on off wall switch or hard wiring with a remotely located switch Controls may be installed in the same room as the fan 8 Fans should be located in a central hallway or bathroom 9 When installing a continuously operating exhaust fan educating the client about its use is extremely important The client should be informed about a The purpose s of the exhaust fan installation b The importance of operating the fan whenever the house is closed up such as during the heating season c The disadvantages of not operating the exhaust fan North Dakota Weatherization Field Standards January 2003 Page 24 2300 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs 2263 Existing Exhaust Fans Existing mechanical exhaust ventilation systems should be made to terminate outside the building shell by extending the ventilation duct through the roof or sidewall Replacement
213. ngs shall not be dense packed or over filled so as to create ceiling structural problems If an interior drill and blow method is used for installing insulation holes must be plugged and sealed properly In addition the whole pattern must be adequate to ensure complete coverage If an exterior installation method or side opening method is used all roof penetrations and areas of potential leakage must be sealed with elastomeric sealant when compatible with roof materials or with other equivalent sealant as necessary Areas that are to be patched must be cleaned to the metal roof surface It is preferred that fiberglass insulation material be used for mobile home ceilings North Dakota Weatherization Field Standards January 2003 Page 75 7000 Mobile Home Requirements 7500 Ductwork 7500 14 15 It is preferred that cutting of large holes and the use of screws on top of metal roofs not be done especially in heavy snow load areas In heavy snow load areas client education should be given whenever ceiling insulation is added explaining the possibility of increased snow depths on the roof because of reduced heat loss To reduce the possibility of creating leaks clients should be advised to refrain from shoveling snow off the roof Instead they should use a push broom if absolutely necessary Ductwork Mobile home belly return air systems must be permanently sealed from the living space A living space return air syste
214. no other measures may be installed with the exception of general heat waste and health and safety measures Subgrantees should explain the potential energy savings to the client to ensure that they understand the ramifications of their decision Subgrantees must document the reason the work was not performed 3 Conversion of water heaters or furnaces to a different fuel type which will result in a different vendor providing the fuel to the replaced appliance requires a waiver from the DCS office 1640 Heating System Replacement Waivers 1 Prior approval is required for the replacement of a secondary heating system 2 Waiver of client health and safety contribution RESERVED 1650 Technical Waivers 1 Conservation measures and associated repairs may be omitted if the work cannot be completed because of health safety local codes or other technical reasons The following are examples of acceptable grounds for a technical waiver a Risk to client or subgrantee staff to health or safety risks such as fire explosion bodily harm unruly pets harmful combustion by products electric shock friable asbestos unsanitary conditions or height clearance Please see Section 2212 on page 18 for walk away policy requirements 2 Technical waivers do not require State approval but a brief explanation must be documented in the unit file 1700 Subgrantee Final Inspections 1 Weatherized units may be reported to the Division of Community
215. nt fixtures Compressor A motorized pump that compresses the gaseous refrigerant and sends it to the condenser where heat is released Condense To change from a gaseous or vaporous state to a liquid or solid state by cooling or compression Condenser The coil in an air conditioning system where the refrigerant condenses and releases heat which is carried away by air moving across the coil Condensate The liquid formed when a vapor is condensed North Dakota Weatherization Field Standards January 2003 Page 176 12000 Glossary Condensate receiver A tank for catching returning condensate water from a steam heating system Conditioned Space A heated or cooled area of a building Conditioned space includes any area of a dwelling that is determined to be within the insulated envelope or shell Conductance The quantity of heat in Btu that will flow through one square foot of material in one hour when there is a one degree Fahrenheit temperature difference between both surfaces Conductance values are given for a specific thickness of material not per inch thickness Conduction The transfer of heat energy through a material solid liquid or gas by the motion of adjacent atoms and molecules without gross displacement of the particles Conductivity The quantity of heat that will flow through one square foot of homogeneous material one inch thick in one hour when there is a temperature differenc
216. nt of BTL at the end of the work day air sealing may be considered completed If all leakage tests have been performed and the CEG program indicates that air sealing should stop stop air sealing 11400 Building Tightness Limit Procedures and Calculation 11410 Introduction The purpose of the Building Tightness Limit BTL calculation is to ensure that the dwelling complies with the ASHRAE Standard 62 1999 Standard for Acceptable Indoor Air Quality This Standard requires at least 15 CFM of fresh outdoor air per person and 0 35 air changes per hour per dwelling unit The BTL is expressed as a CFMso value making is easy to determine whether the dwelling is tighter or looser than the BTL with a blower door test 11420 General Procedure T Use the ZipTest Pro software loaded in the TI 86 calculator or the WXEOR audit to determine the BTL for each dwelling Each dwelling requires a separate calculation Calculate the BTL before weatherization work begins The BTL is a CFMsp estimate that is used as an air sealing guideline that is if the North Dakota Weatherization Field Standards January 2003 Page 105 11000 Diagnostic Testing Procedures dwelling is tightened to a CFMso value that is less than the BTL the building will not comply with ASHRAE 62 1999 unless continuously operating mechanical ventilation is installed Table 11 1 BTL Procedure Inputs Outputs Input Data Output Values Climate zone BTL CFMso
217. ntionally vented combustion appliances the Depressurization Tightness Limit DTL must be calculated before weatherization work begins North Dakota Weatherization Field Standards January 2003 Page 108 11000 Diagnostic Testing Procedures The DTL calculation establishes a CFMs 9 minimum below which the backdrafting of conventionally vented combustion appliances is likely to occur This limit provides a guideline for air sealing activities The use of the DTL should never be used as a substitute for performing the worst case draft test procedure The DTL is independent of the BTL each must be calculated independently and the greater of the two for a particular dwelling must be used as the Overall Tightness Limit OTL 11520 Calculation Procedure 1 Use the DTL program in the ZipTest Pro software package loaded in the TI 86 calculator to calculate the dwelling DTL a In the ZipTest Pro software package select the program DTL b Select a solution for CFMs c Enter the total and actual CFM exhaust rate for all the exhausting appliances in the dwelling You should include any appliances that are not yet installed but will be during your weatherization work For example include the CFM exhaust rate of an electric or gas dryer that is not vented to the outdoors now but will be vented as part of your weatherization work Refer Table 11 3 to for guidance Table 11 3 Exhaust Ap
218. nuary 2003 Page 195
219. o polyurethane Polystyrene insulation rigid plastic foam insulation usually white blue pink or green in color Polyurethane versatile plastic foam insulation usually yellow in color Potential energy Energy in a stored or packaged form Pressure A force that encourages movement by virtue of a difference in some condition between two areas High pressure moves to low pressure Pressure diagnostics The practice of measuring pressures and flows in buildings to control air leakage and to ensure adequate heating and cooling airflows and ventilation Pressure pan A device used to block a duct register while measuring the pressure behind it Pressure Relief Valve A safety component required on a boiler and water heater designed to relieve excess pressure buildup in the tank Pressuretrol A control that turns a steam boiler s burner on and off as steam pressure changes Primary window The main window installed on the outside wall Not to be confused with a storm window Provider Either a grantee or contractor North Dakota Weatherization Field Standards January 2003 Page 189 12000 Glossary R value A measurement of thermal resistance Radiant barrier A foil sheet or coating designed to reflect radiant heat flow Radiant barriers are not mass insulating materials Radiant temperature The average temperature of objects in a home including walls ceiling floor furniture and other objects Ra
220. o the basement or crawlspace This test should be used to determine quality and completeness of air leakage and bypass sealing prior to and then after installing insulation In addition this test can help determine the appropriate location of the thermal boundary Please refer to Section 111000 on page 123 for instructions 3 If the appropriate thermal boundary is determined to be the basement or crawlspace wall rather than the floor above the basement crawlspace then the basement or crawlspace wall should be sealed as necessary before any insulation is installed on these surfaces 5320 Installation Methods 5321 Storage Space 1 Where the basement or crawlspace is being used for storage subgrantees should request the client remove storage items from the area 2 In cases where the client is physically unable to perform this task subgrantees should include the removal of items in the cost effective analysis of installing insulation and proceed with the measure if it is cost effective savings to investment ratio of 1 00 or greater 5322 Materials 1 Interior basement wall insulation a If the wall is studded out on the interior it may be filled with unfaced fiberglass batt of an appropriate thickness or with vinyl faced fiberglass metal building insulation A polyethylene vapor barrier should be installed b Vinyl faced fiberglass metal building insulation may be fastened at the band joist area and hung down four
221. om small children and guarding against splashing of hazardous materials into your mouth Inhalation Inhalation is the process by which a substance is breathed into the body in the form of a gas vapor fume mist or dust The best defense is to use a proper filter to remove these contaminants before they enter the body or to not create dust if possible Input rating The designed capacity of an appliance usually specified in Btus or units of energy Insulating glass Two or more glass panes spaced apart and sealed in a factory giving a higher R value Insulation A material used to retard heat transfer Intermittent ignition device IID A device that lights the pilot light on a gas appliance when the control system calls for heat thus saving the energy wasted by a standing pilot Internal gains The heat generated by bathing cooking and operating appliances that must be removed during the summer to promote comfort or will reduce the heating demand in the winter Interstitial Space between framing and other building components zaj Joist A horizontal wood framing member that supports a floor or ceiling Joule A unit of energy One thousand joules equals 1 Btu K Kilowatt One thousand watts A unit of measurement of the amount of electricity needed to operate given equipment Kilowatt hour The most commonly used unit for measuring the amount of electricity consumed over time It means one kilowatt of elect
222. ombustion products with no carbon monoxide indications 2 Spillage Spillage but no carbon monoxide indications in a heated space 3 Propane or Natural Gas Leak Propane can be smelled but not more than three feet from the leaking fitting North Dakota Weatherization Field Standards January 2003 Page 28 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs 4 Carbon Monoxide Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 and there must be an adequate draft and no spillage 5 No Limit Switch A furnace with no limit switch or a limit switch that is disconnected 2413 Non Emergency Five day Follow up Required All other safety related follow up must begin within five days Examples of this type of situation are 1 Draft Unacceptable draft with spillage in an unheated area 2 Propane or Natural Gas Leak Gas can be smelled but not more than two feet from the gas line 3 Limit A furnace limit switch that does not shut the gas off by 225 F 4 Suspicion of a Cracked Furnace Heat Exchanger A cracked heat exchanger is suspected but there are no other apparent problems with the furnace 2420 Required Safety Tests amp Standards for Combustion Appliances Test all active combustion heating systems and appliances whether they are primary secondary off peak or dual fuel systems 2421 Forced Air Systems The subgrantee must document each
223. on 3 Closed cell foam high temperature rated insulation or elastomeric pipe insulation should be used that has a flame spread rating no greater than 25 4 Maintain a minimum of 6 inches between pipe insulation and all heat sources 5 Domestic hot water pipes running through unconditioned spaces must be insulated if accessible 4330 Water Heater Blankets The installation of water heater blankets on electric water heaters in conditioned spaces is recommended unless this will void the warranty Gas water heaters should not be insulated Water heaters located in unconditioned areas should be moved to a conditioned area if possible If the water heater cannot be moved the heater and distribution pipes both hot and cold must be insulated 4331 Water Heater Blanket Materials 1 The water heater blanket must be fiberglass batt insulation with a protective covering 2 AnR 11 water heater blanket is preferred on all tanks not labeled with a prohibition to installing additional insulation to that already installed by the manufacturer 3 A water heater blanket must be secured to the water heater with at least two 2 straps with buckles The installed straps must not excessively compress the water heater blanket 4332 Installation 1 The water heater tank must be inspected to determine the type of water heater gas electric other and whenever possible the amount of existing insulation North Dakota Weatherization Field
224. on the magnehelic gauges digital gauges ZipTest Pro software in the TI 86 calculator or the blower door tables 11200 Blower Door Guided Air Sealing 11210 Pre Guideline and Guideline Air Sealing Air sealing work on dwellings is of three categories 1 Pre guideline air sealing Examples include replacing window glass where glass is missing and sealing gross holes in the building envelope There is little question that sealing or repairing these gross holes in the dwelling envelope will be cost effective a Prior to any work done on the dwelling an as is blower door test should be performed as a means of finding these gross holes This test will indicate whether pre guideline air sealing is required in order to perform a more representative blower door test 2 Guideline air sealing This is air sealing completed with the guidance of the Weatherization Cost Effective Guidelines WCEG WCEG must be used on all blower door guided air sealing The WCEG program of the ZipTest Pro software package for the TI 86 calculator This type of air sealing work is usually cost effective only up to a point Once that point is reached air sealing work on a dwelling should cease 11300 Weatherization Cost Effective Guidelines 11310 Introduction This procedure must be used for guideline air sealing as defined in Section 11200 just above If the procedure is used correctly it indicates whether the crew should continue or stop air se
225. onservation or repair work should not be started 7 Weatherization is not to proceed until problems beyond the scope of the program affecting either the integrity of installed WAP measures or the health and safety of the client or crew are remedied with non WAP funds 8 Health and safety related repairs within the scope of WAP include the following Furnace replacements Materials to mitigate excessive carbon monoxide Heat exchangers replacements or repairs Burner replacements or repairs Combustion air venting system repairs or replacements Materials to repair gas leaks Repair of gas leaks Chimney cleaning and lining Water heater tank replacements not WAP conversion units 9 The costs for health and safety repairs are not to be factored into cost effectiveness analysis savings to investment ratio SIR 10 For reporting purposes the costs for health and safety repairs listed above are to be allocated to the Health and Safety category on the Building Work Order BWO sa 7o a0 0 North Dakota Weatherization Field Standards January 2003 Page 6 1000 Administrative Scope and General Requirements 1600 General Auditing and Weatherization Requirements 11 Allowable repairs which can be completed with WAP funds must be aopo e f g associated with an eligible weatherization measure and are limited to the following Mechanical ventilation system materials Electrical repair materials Plumbing
226. or range 111120 Inspection and Client Education 111121 A Gas Range Inspection 1 Range top inspection a Inspect the range top burner area for cleanliness If the burners or burner area are dirty enough to adversely impact the combustion process inform the client that the range should be cleaned to reduce the possibility of unacceptable emissions b Inspect the burners for proper alignment and seating c All cooking vessel support grates should 1 be in place 2 fit properly in the burner well and 3 be in one piece with no broken parts d If any of the grates are missing or in unsatisfactory condition the client should not use the affected range burner s until the substandard or missing grate is replaced 7 CO air free is a CO as measured reading that has been adjusted normalized with corresponding O2 percentage readings from the same combustion gas sample CO air free is usually expressed as a parts per million ppm value but it is actually an emission rate not a percentage North Dakota Weatherization Field Standards January 2003 Page 127 11000 Diagnostic Testing Procedures e If the range top burners are ignited with a standing pilot light verify that the pilot flame is present is about 5 16 in length and is soft blue in color not yellow f Ignite each burner for at least 30 seconds to inspect its flame for color and noise i The flames should have sharp blue edges with orange specks rising through
227. or to insulating and prepare as necessary Locate critical framing junctures and ensure adequate insulation density 5215 Exterior Inspection and Repairs 1 Note all types of siding material Note siding material which may contain asbestos Wherever possible determine the presence and condition of previous layers of siding or sub siding Determine the best drilling strategy the tubing method or the nozzle method As the primary acceptable method the siding must be lifted or temporarily removed to gain access for drilling Permission is needed from the client to drill through any type of exterior siding 2 Repair or replace severely deteriorated window or door components as directed by the work order Replace all missing glass 3 Patch holes in exterior walls 4 Determine the source and correct any problem which has led to moisture in wall cavities prior to installing insulation Repair or replace damaged rotted or deteriorated siding to ensure the integrity of the insulation If any missing siding flashing etc would allow disintegration of installed insulation replace it with a compatible material North Dakota Weatherization Field Standards January 2003 Page 58 5000 Insulation Requirements 5200 Sidewall Insulation 5 Access structural additions and critical junctures to determine the ability of these areas to contain high density insulation Correct any openings or gaps prior to installing insulation 5220 Installa
228. ork based on the guidelines in Section 4100 6320 Door Repairs 1 The following door air leakage measures may be installed based on the cost effectiveness guidelines in Section 4100 Door hardware adjustment or replacement Door jamb kit installation Door sweep installation Door threshold installation or repair 6330 Door Air Leakage 1 With the exception of isolated installations to address client comfort door air leakage measures such as jamb up kits sweeps and thresholds must be determined to be cost effective based on the guidelines in Section 4100 on page 41 a9 0 w North Dakota Weatherization Field Standards January 2003 Page 71 6000 Window and Door Replacements 6300 Doors 6340 Door Repairs 1 When feasible a door must be repaired rather than replaced whenever the total cost of the repair is seventy five percent or less than the cost of the replacement door 2 It is not required to make existing stuck doors operable 6350 Door Replacements 1 Individual replacement doors may only be installed if the cost of the repair justified the WXEOR audit 2 Pre hung replacement doors may be installed if determined to be more cost effective than the repair of the existing door and frame or the installation of a door that is not pre hung 3 The cost of the purchase and installation of all hardware and the material associated with the replacement of a door must be included in the calculation of the SIR used to justify t
229. ows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly Oil fired unit requirements North Dakota Weatherization Field Standards January 2003 Page 86 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Thermostat gas valve The furnace must have a thermostat in working condition and must be compatible with gas valve circuit type 24 volt vs millivolt For 24 volt system type the anticipator on the thermostat should be set equal to the measured gas valve circuit amperage Those appliances not equipped with thermostatic control should not have a thermostatic control added Non electric setback thermostats with an adjustable anticipator may be installed under the following conditions a Client lifestyle indicates potential for energy sa
230. pact fluorescent light bulbs CFLs meet the stringent criteria of ENERGY STAR for long life start time energy savings color and brightness These new CFLs provide high quality warm light without the flickering or humming of older fluorescent bulbs Advanced technology enables CFLs to use 75 percent less energy than a standard incandescent bulb and last up to 10 times longer This means that over the life of one CFL a client can avoid replacing up to 13 incandescent bulbs Table 11 10 ENERGY STAR CFLs emit the same STOEL TWAS a h Watts amount of light as standard bulbs but 14 40 have lower Wattage ratings because 20 60 they use less energy Use this 25 75 equivalency chart when replacing 32 100 standard incandescent bulbs Notice that 50 150 in Table 11 10 the Wattage of an efficient CFL is about 1 3 that of a typical incandescent for a given level of light output 111222 Replacement Procedure Collect the following information North Dakota Weatherization Field Standards January 2003 Page 139 9 5 d 11000 Diagnostic Testing Procedures Cost of electricity in dollars and cents per kWh Hours of use for each existing lamp Proposed wattage of each new lamp Cost of each new lamp 2 Select the appropriate table for the wattage of the old lamp For those lamps with wattage between the listed wattages select the table of the next lowest usage a Select the wattage that matches the
231. pe or the air leakage rate indicates that there may be hidden air leakage or bypass pathways into the basement or crawlspace This test should be used to determine quality and completeness of air leakage and bypass sealing prior to and then after installing insulation In addition this test can help determine the appropriate location of the thermal boundary Please refer to Section 111000 on page 123 for instructions 3 If the appropriate thermal boundary is determined to be the floor above the basement or crawlspace rather than the walls of the basement or crawlspace then this floor should be sealed as necessary before any insulation is installed under it 5420 Installation Methods for Floor Insulation 1 Install a minimum of R 19 insulation between the floor joists 2 The insulation should be installed without voids or gaps Fit insulation tightly around cross bracing and any obstructions 3 Floor insulation must be fastened securely in place with wire fasteners nylon mesh or other appropriate methods Friction fitting or stapling of floor insulation is not considered an appropriate method for securing the material Do not support insulation with Tyvek or Typar sheeting stapled to the bottom edges of the joists 4 Install insulation so that it is in contact with the underside of the sub floor above 5 Faced fiberglass insulation must have the facing upward toward the heated area 6 Ensure that floor insulation is in d
232. pliance Nominal CFM Appliance CFM Nominal Bathroom exhaust fan 50 Kitchen range hood 100 Kitchen wall fan 250 Kitchen down vent fan Jenn Air 300 600 Dryer 180 Central vacuum 150 Fireplace 200 400 Note Actual CFM might be significantly less than nominal or rated CFM d Select and enter the appropriate building depressurization limit based on Table 11 4 If more than one appliance is located in a CAZ use the lowest magnitude building depressurization limit for the existing CAZ appliances for example 2 Pascals is a lower magnitude than 5 Pascals North Dakota Weatherization Field Standards January 2003 Page 109 11000 Diagnostic Testing Procedures Table 11 4 Building Depressurization Limits for Various Appliance Types Used to calculate the Depressurization Tightness Limit Appliance Type Building Depressurization Limit Pascals Water heater only atmospheric gas 2 Water heater and atmospheric furnace 5 Furnace or boiler gas atmospheric or fan assist Category 5 Oil or gas unit with power burner 5 Induced draft appliance fan at point of exit at wall 5 Direct vent appliances 10 e Enter the appropriate flow exponent for the house If you do not know the actual flow exponent enter the default value 0 65 f The ZipTest Pro software calculates the CFMso tightening limit for combustion safety the Depressurization Tightness Limit Use this as a low limit
233. priate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Thermostat gas valve The furnace must have a thermostat in working condition and must be compatible with gas valve circuit type 24 volt vs millivolt For 24 volt system type the anticipator on the thermostat should be set equal to the measured gas valve circuit amperage Those appliances not equipped with thermostatic control should not have a thermostatic control added Non electric setback thermostats with an adjustable anticipator may be installed under the following conditions a Client lifestyle indicates potential for energy savings b Client is receptive to the installation and c Appropriate client education is provided on the operation of the thermostat 4 Itis preferred that mobile home thermostats be located on an interior wall 5 Fan on fan off deally the fan off temperature is between 95 and 100 F but never below 80 F The fan on target range is between North Dakota Weatherization Field Standards January 2003 Page 88 10 11 12 13 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements fan off and 130 F but never to exceed 140 F In addition all appliances that are not direct vent combustion and have inaccessible flue pipes must have a spillage check done to verify that no significant spillage i
234. ptible to freezing and all furnace supply and return ducts below the insulation must be insulated as part of the floor insulation measure Please refer to Section 4310 and 4320 starting on page 47 3 Do not insulate over pumps valves pressure relief devices or vents do not insulate over heat tape unless manufacturers specification indicate that such insulation is safe 5430 Crawlspace Ventilation 1 Conditioned crawl spaces a If crawlspace walls are insulated the crawlspace shall not be vented to the outdoors 2 Unconditioned crawl spaces a Crawl space ventilation is not necessary if the crawl space is well drained and dry 3 Crawlspace vents shall be louvered and screened or otherwise designed to prevent the entry of snow rain and critters into the building 4 If operable crawlspace vents are installed the client must be informed of the benefits of closing the vents in winter and opening the vents in summer 5 If excess ventilation is present it is preferred that it be closed off with removable rigid insulation Where possible close off vents on the windward side of the crawlspace Do not close off combustion air vents North Dakota Weatherization Field Standards January 2003 Page 68 6000 Window and Door Replacements 6100 Primary windows 6000 Window and Door Replacements 6100 Primary windows 6110 Window Assessment 1 Windows must be assessed with the WXEOR audit to determine the need for pot
235. quality 15 CFM per person or 0 35 air changes per hour ACH whichever is greater must be supplied by natural air leakage and or continuously operating ventilation However the BTLa method uses different calculation methods based on ASHRAE 119 and 136 than the BTL method to arrive at the final tightness limits Btuh British thermal units per hour Building cavities The spaces inside walls floors and ceilings or between the interior and exterior sheeting Building Depressurization Limit BDL BDL is a selected indoor negative pressure expressed in Pascals immediately around vented combustion appliances that use indoor air for combustion supply air If a combustion appliance experiences a negative pressure of a greater magnitude than the BDL it has the potential to backdraft causing a hazardous condition for the occupants The BDL for furnaces and boilers is often 5 Pascals and for stand alone natural North Dakota Weatherization Field Standards January 2003 Page 174 12000 Glossary draft water heaters 2 Pascals Field studies have been done to determine the negative pressure at which these appliances will begin to backdraft Building science An involved perspective on buildings using contemporary technology to analyze and solve problems dealing with design construction maintenance safety and energy efficiency of the buildings Building Tightness Limit A general term for a house tightening limit
236. quirements 2400 Combustion Appliance Safety Testing and Repairs falls outside of this range replacement for reasons of health and safety should be considered 2423 Mobile Home Sealed Combustion Furnaces All sealed combustion mobile home furnaces should conform to the following 1 Gas fired unit requirements a Gas leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following conditions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Limit switch This switch should shut the gas valve off at app
237. r ambulances should be conspicuously posted h A First Aid program should be in place It should include the following i First aid training provided to at least one member of each crew ii CPR training provided to at least one member of each crew iii One complete First aid kit per vehicle iv One eye wash station with at least one refill per vehicle 9 Subgrantees must establish a Personal Protective Equipment Program This program should include the following a Respiratory Protection Procedures that provide employees with the following i The proper personal respiratory protection equipment ii Respirator fit testing by a trained person iii Training to employees on respirator use iv Medical examination of pulmonary capacity with a frequency recommended by appropriate OSHA standards b Eye protection should be made available when appropriate c Gloves and protective coveralls should be made available when needed to protect worker health or safety 10 Uniforms or washing machines and dryers at the weatherization shop 11 Agencies should have in place a Tool Safety Program designed to protect employees from work place hazards This program should ensure the following a Tools are safe and adequate for the job b Ground fault protection is provided for power tools Employees are trained in the safe and proper operation of tools and equipment used in their work d Safety guards are in place on all tools t
238. r barrier B Z or in the zone to outdoor barrier Z O 5 On the other hand if the attic is not vented to the outdoors the roof might be serving as the primary air barrier In this case when the attic is vented the whole house CFMso might increase to a value significantly greater than the Building Tightness Limit CFMso Therefore in situations like this ZPD testing should be done in the attic The terms inside the parenthesis in this section are actual names used in the ZipTest Pro software program North Dakota Weatherization Field Standards January 2003 Page 125 11000 Diagnostic Testing Procedures k Measure record and enter the size of the added temporary hole in square inches It is best to lower the barrier AP1 in which the hole is added by 15 or more Pascals Make certain that the house to outdoor pressure is brought back up to 50 Pascals when the temporary hole is open m On the digital manometer move the pressure hose green from the top tap on channel A to the bottom tap on channel B n With the temporary hole open and the building to outdoor pressure difference at 50 Pascals measure record and enter the pressure from the building to the zone BLD ZONE AP2 o On the digital manometer move the pressure hose green from the lower tap on channel B to the upper tap on channel A Make sure the gauge channel switch is set to channel A p With the temporary hole open and the building to outdoor pres
239. r if the subgrantee must utilize hazardous chemicals it must be discussed with the client prior their use Special precautions must be taken if the occupant of the home has respiratory ailments allergies is pregnant or has unique health concerns Subgrantees should try and protect all clients from respirable particles such as paint or insulation dust during the weatherization process The installation of hazardous materials must be done in well ventilated areas If strong smelling chemicals such as formaldehyde are detected in the client s home subgrantees should not perform any weatherization measures that would reduce the natural air leakage of the dwelling At minimum auditors and crewmembers should inform property owners of safety problems code problems and other health and safety issues For problems that are life threatening or otherwise serious the subgrantee supervisor should contact the jurisdiction having responsibility for the observed problem 2240 Moisture Assessment and Repairs 2241 Assessment of Moisture Conditions All homes should be checked for previous or existing moisture problems 1 The moisture assessment section of the Estimator Field Form must be filled out along with special attention to the following signs a Evidence of condensation on windows and walls indicated by stains or mold North Dakota Weatherization Field Standards January 2003 Page 21 2000 Health and Safety Requiremen
240. rature range If this information is not available the heat rise should fall within a 40 to 80 F range The furnace must not cycle on the high limit switch 7 Blower belts and pulleys a Cracked or broken blower belts shall be replaced b Ifa larger pulley is installed on a belt drive furnace blower the motor amperage must be measured If the amperage draw is more than the motor s rated amperage a smaller pulley must be installed and the motor amperage measured again 8 Draft Spillage All furnaces must be properly vented All non sealed combustion furnaces must be tested with a draft testing device and meet the acceptable draft requirements There must be no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All furnaces with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 9 Carbon Monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 North Dakota Weatherization Field Standards January 2003 Page 85 10 11 12 13 14 15 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements Ductwork Return ductwork located in the combustion appliance zone CAZ shall be sealed is such sealing prevents hazardous negative pressure in the CAZ
241. re reading to flow by using the Duct Blaster Flow Conversion Table in the Duct Blaster instruction manual 24 Check to make sure you have set the DG 3 correctly 25 It is a good idea to move the register pressure hose to other registers If the dwelling to duct pressure does not remain close to zero there are probably significant duct leaks Inspect and repair any obvious duct disconnects before continuing 26 When the duct sealing and duct blower testing are completed shut down and remove the blower door and duct blower The final worst case draft test should be performed after the duct testing and duct sealing is completed 111000 Zone Pressure Diagnostics ZPD Testing 111010 Introduction Zone pressure diagnostics testing is performed to answer some fundamental questions where is the functioning air barrier and where should it be located These test procedures can also be used to measure the size of the leakage paths to various house zones Leaking air often takes a path that moves through two surfaces with a cavity or zone between These zones can include attics basements garages knee wall areas or attached porch roofs ZPD procedures require the measurement of pressure differences across air barriers like the pressure difference between the house and the zone attic for example while the house is depressurized by a blower door to 50 Pascals The procedures also require the determination of flows across air bar
242. repair materials Structural repairs include roofing siding ceiling floor foundation and mobile home belly repairs that are necessary for the installation of energy conservation measures Vapor barrier installation Drainage repairs or modifications Clothes dryer venting 12 When repairs are necessary and are not associated with a WAP 13 measure or cannot be justified with a SIR over 1 00 the client and homeowner must be notified and referred to alternative resources home rehabilitation programs landlords etc This occurrence must be documented in the client file Subgrantees must guarantee work done under the Weatherization Assistance Program for a period of one year after completion final inspection A subgrantee may extend this work guarantee at its discretion and expense 1610 Required Unit File Documentation Documentation for each completed job file must contain 1 A copy of an accurate WXEOR audit priority list that was used for the job All required combustion appliance documentation Documentation of the initial audit including the auditor s name and the date of the initial audit Pre and post weatherization blower door test information and the building tightness limit value in units of CFMso An explanation of reasons that any dwelling unit did not have a blower door test performed A final inspection form signed by a qualified subgrantee staff person Please refer to Section 1700 on page 9
243. ricity supplied for one hour Kinetic energy Consisting of or depending on motion distinguished from potential energy North Dakota Weatherization Field Standards January 2003 Page 185 12000 Glossary ae ee Lamp A light bulb Latent heat The amount of heat energy required to change the state of a substance from a solid to a liquid or from a liquid to a gas without changing the temperature of the substance Lath A thin strip of wood or base of metal or gypsum board serving as a support for plaster Light quality Good light quality is characterized by absence of glare and low brightness contrast Living space A space in a dwelling that is lived in or regularly occupied This space may be conditioned or unconditioned Low water cutoff A float operated control for turning the burner off if a steam boiler is low on water Lumen A unit of light output from a lamp Low E Short for low emissivity which refers to the characteristic of a metallic glass coating to resist the flow of radiant heat _M Main panel box The service box containing a main switch and the fuses or circuit breakers located inside the home Make up air Air supplied to a space to replace exhausted air Manifold A tube with one inlet and multiple outlets or multiple inlets and one outlet Manometer A pressure differential gauge used for measuring gas and air pressures MHEA Manufactured Housing Energy Audit developed by
244. riers These flows can be calculated with the steps of the ZPD procedures and a computer or North Dakota Weatherization Field Standards January 2003 Page 123 11000 Diagnostic Testing Procedures a programmed calculator Once these flows are calculated an estimate of the square inches of leakage through an air barrier can be easily determined These procedures can be used with primary and secondary zones Primary zones are zones to which you have access such as basements or attics This access allows you to open a temporary hole or door between the zone and the dwelling or the zone and the outdoors For primary zones ZPD can be conducted for reasons of 1 Air leakage energy loss concerns If after initial tightening of large leaks the house still has significant but not obvious air leakage performing ZPD can help identify whether leaks are in the attic floor the house walls or through the basement or crawlspace walls 2 Indoor Air Quality concerns Examples include air movement from attached or tuck under garages into a living area and moisture or soil gas movement from a crawlspace into the dwelling 3 Attic with potential or actual moisture related problems This might be the case if a The attic has obvious moisture problems b The dwelling has evidence of high winter relative humidity or significant sources of uncontrollable moisture are evident or c Ice dams are a concern Secondary zones are zones to which you h
245. rn system in the mobile home convert it to a living space return system refer to Section 7700 on page 79 For a living space return system if the sum of the pressure pan readings is 3 Pascal or less Visually check furnace plenum joint and repair and seal with mastic if necessary and Visually check all boots and repair and seal with mastic if necessary For a living space return system if the sum of the pressure pan readings is between 3 and 5 Pascals Visually check all boots and repair and seal with mastic if necessary Visually check any crossover ducts and repair and seal with mastic if necessary Make sure these ducts are supported properly Visually check furnace plenum joint and repair and seal with mastic if necessary and Goal Reduce the sum of pressure pan readings to 3 Pascals or less For a living space return system if the sum of the pressure pan readings is greater than 5 Pascals Repair and seal as in 3 above and Perform duct blower test and implement duct blower guided duct repair and sealing Refer to page 121 Duct Blower Testing Goal Reduce duct leakage to the outdoors as measured with a duct blower and blower door to10 percent of conditioned floor area 11922 Site Built Homes Including Manufactured Housing 1 For ducts located in unconditioned spaces The pressure pan readings must be adjusted for house zone pressure differences See Pressure Pan Multipliers chart and test on p
246. roximately 200 F where appropriate Some units should not be tested in this manner 4 Heat rise Heat rise should fall within the manufacturer s recommended temperature range If this information is not available the heat rise should fall within a 40 to 80 F range The furnace must not cycle on the high limit switch 5 Carbon monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 6 Non sealed combustion furnaces These units should be replaced with sealed combustion furnaces 7 Sizing Replacement Systems Actual appliance output must be determined and fall within a range of 100 to 130 percent of the North Dakota Weatherization Field Standards January 2003 Page 32 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs required heat output of the heated space in its post weatherized condition 2424 Boilers The subgrantee must document each situation in which the following specification cannot be met All boiler systems should conform to the following standards 1 Gas fired unit requirements a Gas leaks All identified gas leaks should be referred to appropriate persons for repair or replacement Hold the leak detector probe just below a propane gas line and just above a natural gas line b Flexible gas lines must be replaced under the following condi
247. ry completion of work and presentation of client education A list of any conditions which are judged out of the ordinary ex non operable egress doors and windows The signature of the dwelling unit owner must be contained in the file when the owner agrees to permanently sealing an unused fireplace Documentation of all safety tests and work done on combustion appliances Copy of an executed rental agreement is the weatherized dwelling is rental property 1620 Subgrantee Inspection Methods 1 9T The subgrantee is responsible for inspecting all measures under the following conditions until a consistent pattern of high quality workmanship is demonstrated At the start of each program year When new field staff are involved When new subcontractors are used When several findings are discovered during a monitoring visit 1630 WAP Field Standards Waivers 1 Deviations from the WAP Field Standards require a waiver from the DCS WAP Administrator prior to the expenditure of funds unless waived for technical reasons see Technical Waivers below in Section 1650 Work may proceed after verbal authorization by the DCS WAP Administrator North Dakota Weatherization Field Standards January 2003 Page 8 1000 Administrative Scope and General Requirements 1700 Subgrantee Final Inspections 2 If aclient occupant refuses to allow a certain measure to be completed and this measure has a higher SIR than the remaining measures
248. ry 2003 Page 1 1000 Administrative Scope and General Requirements 1200 Scope 1000 Administrative Scope and General Requirements 1100 Effective Date 1 All weatherization measures performed or completed by the grantees on or after the date specified in the cover letter to these standards shall comply with these standards 2 All dwelling units completed after the effective date shall comply with these standards 1200 Scope 1 The Goal for the North Dakota Department of Commerce Division of Community Service s DCS Home Weatherization Assistance Program WAP is To provide weatherization assistance which increases the energy efficiency of dwellings owned or occupied by low income persons reduce their total residential energy expenditures and improve their health and safety especially low income persons who are particularly vulnerable such as the elderly the handicapped and children 2 The North Dakota Program Field Standards shall be known as the Field Standards and may be referred to throughout this document as The Standards WAP Standards or Field Standards 3 The Standards shall apply to all local administering agencies subgrantees providing Weatherization Assistance Program WAP services 4 The Standards provide guidelines for the installations of energy conservation measures and repairs Materials and measures that are allowed or not allowed will be specifically designated 5 Items designated as
249. s COs i free with the use of Equation 1 above These instruments will not calculate COair tee automatically if the O2 percentage is high for example Bacharach equipment will not calculate COair tree if the O2 percentage is above 16 Testo equipment will not calculate COsir tree if the O2 percentage is above 20 North Dakota Weatherization Field Standards January 2003 Page 132 11000 Diagnostic Testing Procedures i For natural gas and propane CO air free z x CO ppm 20 9 0 Where COair free Carbon monoxide air free COppm aS measured carbon monoxide ppm O2 oxygen in combustion gas percentage n Average the CO air free emission rates for the minimum and maximum CO ppm readings o Averaged CO air free must be 800 ppm or less averaged from the CO air free values corresponding to the CO ppm minimum and maximum occurring after fifteen minutes of warm up with oven set to 350 F p Determine whether the burner passes or fails the limit i If a failed burner can be adjusted in a way that reduces the CO emissions to below those set by the levels of this standard then the range passes the protocol after the field analyst retests the range to ensure that the burner s now passes limits of the protocol ii If the failed burner s cannot be tuned or replaced to pass the protocol levels or the gas range construction does not allow for adjustment or parts replacement the gas range should be replaced 1 Ifthe fiel
250. s manufactured from 1973 to 1980 including pre 1980 side by side harvest gold or avocado green with auto defrost 1300 kWh yr 4 Units manufactured from 1981 to 1984 1050 kWh yr 5 Units manufactured from 1985 to 1988 1000 kWh yr 6 Units manufactured from 1989 to 1990 900 kWh yr 7 Units that run continuously 2000 kWh yr c KWh yr estimates from actual metering of the refrigerator with the Brultech ECM 1200 device i Plan the energy analysis entry interview and overall visit to facilitate connecting metering equipment promptly Leave North Dakota Weatherization Field Standards January 2003 Page 135 11000 Diagnostic Testing Procedures the Brultech ECM 1200 meter in place for at least two hours The longer the metering time the more accurate the projected annual kWh estimate will be ii Open the refrigerator freezer door s in order to 1 Place the indoor outdoor recording thermometer near the back wall of the freezer compartment make sure it is not in contact with any frozen food and place the main body of your thermometer on a counter near the refrigerator or freezer Make sure that you reset the thermometer before placing the remote bulb After three to five minutes record the remote bulb temperature of the freezer and the ambient temperature of the main thermometer Now reset the thermometer again The remote bulb in the freezer during your metering will indicate whether the refrigerator is in defrost mo
251. s of a home Suspended ceiling Modular ceiling panels supported by a hanging frame aro hee Technical Waiver Therm A unit of energy equivalent to 100 000 Btus or 29 3 kilowatt hours Thermal break A piece of relatively low conducting material between two high conducting materials installed to reduce heat flow through the assembly Thermal bridging Rapid heat conduction resulting from direct contact between thermally conductive materials like metal and glass Thermal bypass An indirect penetration that tends to reduce the effectiveness of insulation by allowing conditioned air to move out of a structure or allowing unconditioned air to move in depending on the exerted pressures Thermal conductance A material s ability to transmit heat the inverse of the R value Thermal resistance Same as R value expressing ability to retard heat flow Thermocouple A bimetal junction electric generator used to control the safety valve of an automatic gas valve Thermostat A device used to control a heating or cooling system to maintain a set temperature Transformer A double coil of wire that reduces or increases voltage from a primary circuit to a secondary circuit Truss A braced framework usually in the shape of a triangle to form and support a roof North Dakota Weatherization Field Standards January 2003 Page 193 12000 Glossary ve U factor The total heat transmission in Btus per square feet per hour
252. s present Limit switch This switch should shut the gas valve off at approximately 200 F where appropriate Some units should not be tested in this manner Heat Rise Heat rise should fall within the manufacturer s recommended temperature range If this information is not available the heat rise should fall within a 40 to 80 F range The furnace must not cycle on the high limit switch Carbon Monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 Ductwork Please refer to Section 11921 on page 117 for details of testing and repair Filter A clean filter should be installed in a location where the client can locate it for the purpose of replacing or cleaning it No filters shall be installed on furnaces that do not have separate heat exchanger blower compartments International and Intertherm Blower or air handler The air handler blower should be visually inspected to determine if it requires cleaning If necessary it should be cleaned The motor and blower must be oiled where applicable Other cleaning Other necessary cleaning should be done where applicable including air intakes burners furnace controls heat exchangers blower compartment and return air plenum registers and grilles Non sealed combustion furnaces These units should be replaced with sealed combustion furnaces 8
253. s range fails any of these items above or if the field analyst believes for any reason beyond the scope of this protocol that the range burners or the oven bake burner are emitting unacceptable levels of carbon monoxide inform client of the dangers and suggest that they have the range repaired or replaced 111122 Client Education Educating the client is a very important Always take the time to explain the following to the client 1 The holes in the oven bottom must never be blocked with aluminum foil or anything else Blockage of the vent holes can also occur from storing too much in the broiler or drawer area under the bake oven Blockage of the oven bottom vent holes can result in unacceptable carbon monoxide emissions Do not use the range top burners or the oven burner s as a space heater Use of a gas range for space heating is against the manufacturer s recommendations gas ranges are not designed for such use Client should consider installing a CO alarm in the house according to the alarm manufacture s instructions Have the range checked and tuned once every two years by a technician with an instrument capable of measuring carbon monoxide This checkup and tuning should include a Testing of range gas pressure North Dakota Weatherization Field Standards January 2003 Page 130 11000 Diagnostic Testing Procedures b Making all necessary adjustments for the acceptable operation of all burners The level of car
254. seeneees 27 2411 Emergency Situations Immediate Follow up Required ccccceceeeecceseteesenseteeeeneesees 28 2412 Non Emergency One day Follow Up Required l 28 2413 Non Emergency Five day Follow Up Required l 29 2420 Required Safety Tests amp Standards for Combustion Appliances 0 cccceceeeeeees 29 2427 Forced Air System S oae Ae och Re taal ees dena a ds ech ee ne es 29 2422 Gravity Space Wall and Floor Furnaces ccccceseseesseseseesceceseecenceseceeneeseceeneeseeseneeaees 30 2423 Mobile Home Sealed Combustion Furnaces cccccccceceesseseesseteceeseceseeseeseesesseeaeeseeneens 32 2424 BONCIS ooc2 sed a Ba OO nc ES CU cles Sie hE SN Gd ech ah on el he es a tarda es ca 33 2425 Storage Water Heater Inspection oc ececccceccesseteesseeseeseeseeseesessecaeesecsseeeesaecsesaeeaseeenaens 34 24262 GOMbDUSTION AIF SUPPL Ve 2 2 50 coe aes a he Hasek eg a cee eR es eos 34 2427 Gas Range Inspection and TeSting ccccccccccccesscsssssesseeseeseseesecseesecsensesseesesseesseneeneens 35 2428 FLEXIDIE GAS CONMMECTOSS nennen e i A RO A E EE R 35 2429 EUG LOOKS site E e E A EE Sessa ook E R E O See E EE 35 24210 Heat Exchangers sani n e E E E E E E K E a A E TA EE EE 35 24211 Draft Backdrafting and Spillage ccccccccccccccsesesseessesceecseeseceeeecseeseesecsesseeseesseeees 35 24212 Venting Combustion Appliances sssseeeeseeeeseeeeenseesesesneresesresesesreresesresesrseersessese 35 24
255. seeseescescenseeseesessecaecsecseeeesseceesaeeaeeeensens 62 5315 Defining the Thermal Boundary cccccceccccsessesseseesessesceeseaeesessecseesecseenessaeceesaeeaeeaeeneeas 62 5320 Installati n Methods scerna ei Haas R T EA EEE 63 5321 Storage Spate creierii a araara a e aandar o e ania e aiaia 63 g2 l Materials a a aea a chee oon het Als 63 5323 Insulation COVELAGE ececccececscessesceseesseseesseeecssecsensecsecsecusesessseesessecsecsecssesesscecsesecseeaeeaaens 64 North Dakota Weatherization Field Standards January 2003 jii 5324 RM JOISt INSUIATION a cece ceesceescecesssesssecesssscssecesssecssecesssecssecessseesseceesssenseesstes 64 5325 FOUN A ATION INSUIATION seresa nennen a E a a i E ENSS 64 5326 CrawlSpace INSUIATION sseni aeann E E E E E E E 65 5400 Floor lns lation rinine a a e abba a a T 66 5410 Inspection and Repair so neen N REE EE N E E EE 66 5411 Moisture Inspection and Repaifs ssessessenessnonnssesensesssnsnesnesssseonsssessessessesseseenossesresss 66 5412 Electrical Safeguards 0 0 cece ccceccccseteessesecs senses seeseesecseesesacessesaeeseaecseesecsseseeaecaesaeeseeaesneens 66 5413 Treatment Of Other HAZArds ccccccccccsccesccsscesseessecsceescesscesscesscsaecssecssecssecseseseseeesesseseens 66 5414 Defining the Thermal Boundary cccccccccccceseesseseesesecsceeseseesessecaeesecseeeesaecsesecseeaeensens 66 5420 Installation Methods for Floor Insulation 00 00 eee ec
256. seeseseseeessseesesesreresesrssesesteresesresesesresesessese 94 8220 Central Cooling Systems s eeeeeeseseeeesessesesesreresessesesterenesessesesesresesesseseseeressseesesesrenesensese 95 8230 Window Air Conditioners 0 0 ee eeceecsseseesceeseescneesesecsesesecneeseecneeseecneeseeecneeseeeceeaeeeeneeaees 95 9000 Client EAU Cations oiciicicicecscecticeeiedesesistecteceiesenneseectieredsvescasseneennsinndeaenedsteresieedatacesneterintse 97 9100 Client Owner Education Recommendations ccecccececceeeeeeeeecenaeceeeeeeeseceennueaeeeeees 97 10000 Electric Efficiency M aSures cccccssecceccesseeeeeseeeeeeeseenseeeseenseseseeaeeeeeseanseeeseenseeeneaes 99 10100 Refrigerator Analysis and Replacement cccececceeeeeieeeeeeeneeeeeenieeeeesaueeeeeseneeeeneaaes 99 10200 Compact Fluorescent Lamp CFL Replacement cccccceeceeceeeeeeeeeeseceeeeeeneees 99 11000 Diagnostic Testing Procedures cccesccceeeeneeeeeeneeeeeeeneeeeseeneeeeseeeneesaseeneeenseeneeenees 101 11100 Blower Doon Testing nerean aa a N tenets bebacavndted shail theiteasethenvnt dstteact 101 11110 Introduction seiere e NENE ENA ENEA EAE E h 101 11120 Preparation for Blower Door TeSt cccccccscesscesscssscesecssecssecssecseseseseseeesesseesscessensees 101 11130 Blower Door Test Depressurization normal ccc ececceeeesseteeeseeeeeseeeeeeeseeteeeenees 102 11140 Blower Door Test PreSSuriZation cccceseescs
257. seorsssessesseseesresrensssesessessrsrenersresrenessesresss 7 1620 Subgrantee Inspection Methods ec ccccesecssesscsseesceseeseeseeseesecseceeceseeeseaeesesseeseeesneesees 8 1630 WAP Field Standards Waivers cc eceeesseseeecseeseeeseesesecseecesecaenaeseceeeaesecaeeaeeeceeeaeeeeaeeaeeesaee 8 1640 Heating System Replacement WIVES cece cecceeesceteesceteeseeecseeeecseeeeeaeeseeecsseesseesees 9 TESO TeGMMICalll WIV ELS ieena coceeses caved Tos ies ces covgides hie tees eve ded ek E E AEREE E EROE 9 1700 Subgrantee Final Inspections 0 0 0 eect eeeeee ee eeeeeeeeeeeeeeeeeseeeeeeseeeaeeeseeeaeeeseeaeeeeeeeaeees 9 1710 Allowable repairs eee eccccsccescessceecesecesecssecssecssecssccsesessecesesssesesesscessceascssecsaecssecsacesaeenes 11 2000 Health and Safety Requirement ccccsseeccee cece ee eeeeeeeeeeeeeeeeseeseaeeeeeeeeseseesseaneeeeeeees 13 2100 Technician Health and Safety ccccccccecceeeeeeeceneeceeeeeeeseceaeeeeeeeseseceaeaeeeeeeeseeeeesnsaeees 14 2200 Health and Safety Procedures cceceecceeeeeeeceeeeeeeeeeeeseeeeeeeeeeeeeeeseeeaeeeseeeaeeeseenaeeeeseeaeees 14 2211 Employer and Subgrantee Responsibilities cc ceccecccceseeeeceseeeesenseseeeeneeseeeeeeseeseneeaees 14 2212 Required Subgrantee Walk Away POLICY cccccccccccesesesseeseeseesecssesecssessessecsesseeseeeeneens 18 2220 Asbestos Inspection ProCe CUre cccccccscssscssecssecssecssecseccssecssessesscesscesscsecaecssecsecsaeeaes 20
258. sh fabric used to reinforce duct mastic shall meet the following requirements a Comply with the mastic manufacturer s specifications b Made of fiberglass c Have at least a 9 x 9 weave per inch d Be at least 0 006 inches in thickness 5 Pressure sensitive metal tape shall meet the following requirements a UL listed and labeled per UL 181A or 181B standards b Tape width must be at least 2 inches c Butyl adhesive must be at least 15 mils thick 6 Draw bands used to support or seal ductwork shall meet the following requirements a Comply with the manufacturer s installation instructions b Weather and UV resistant duct ties or stainless steel worm drive clamps North Dakota Weatherization Field Standards January 2003 Page 45 4000 General Heat Waste Measures 4200 Ducted Distribution Requirements c Loop tensile strength must be at least 150 pounds d Service temperature rating must be at least 165 F 7 Duct supports shall conform to the duct manufacturer s installation instructions and must be corrosion resistant 4230 Ductwork Insulation 1 Ductwork outside the thermal envelope must be insulated or repaired if damaged a Prior to installing insulation ductwork must be sealed according to these standards b Exception Inaccessible parts of the distribution system do not require thermal insulation Inaccessible means nearly impossible to insulate because of location or obstructions 2 Supply and return
259. sonnel The dwelling unit or parts thereof are being remodeled and weatherization work is not coordinated with a housing rehabilitation program The eligible household moves from the dwelling unit where weatherization activities and services are in progress In sucha case the subgrantee must determine whether to complete the work and the circumstances must be documented in the client file There are unusual situations which in the judgment of the subgrantee staff must be corrected before proceeding with weatherization i No utility hookups It is apparent that utilities have been shut off ii Lack of cooperation from client iii Dwelling units undergoing remodeling or which have untreated areas that directly affect the weatherization process shall not be weatherized If for any reason a worst case draft test cannot be done ina dwelling requiring a worst case draft 2220 Asbestos Inspection Procedures 1 Prior to performing work or conducting tests the energy auditor must conduct an inspection for materials suspected of containing asbestos if there is the possibility that they may be disturbed during the weatherization testing or work Decisions on approaches to weatherization work where asbestos is present shall be based on the judgment of the most qualified individual available to the subgrantee When major energy saving measures might be sacrificed as a result of suspected asbestos containing materials th
260. sor to ensure that the main switch has properly turned off the electricity to a space heating unit All 110 volt wiring connections should be secured with wire nuts and electrical tape and enclosed in an electrical junction box or other appropriate enclosure The proper size and type of wire should be used The wire should have the correct rating for voltage amperage and heat exposure Draft hoods draft diverters and barometric dampers should be well secured to the appliance level and should not reduce or restrict the size of the vent All gas ranges should be tested for carbon monoxide according to Section 111100 on page 126 Flexible gas connectors installed by subgrantees should be installed so that they do not pass through the appliance body All direct vent sealed combustion water heating and space heating appliances with visual indicators of a potential carbon monoxide problem such as carbon build up must be tested for carbon monoxide 2410 Response to Combustion Appliance Problems It is often best to contact the local gas company or oil dealer to correct these problems Gas utilities always have their own emergency response protocols these should be respected The items listed below are not intended to interfere with gas utilities emergency protocols often called tagging procedures In each of the situations in Section 2410 the appliance technician will evaluate the client s situation in consultation with the
261. stalled with client permission if the existing showerhead flow is measured at greater than 3 gallons per minute gpm and the installation does not require the use of a plumber 2 The energy saving showerhead must have a flow rating of 2 5 gpm or less 3 If an energy saving showerhead is installed in conjunction with lowering the domestic hot water temperature the chances are high that the client will not notice less hot water for showering as they might if the temperature is reduced without installing the new showerhead 4360 Water Heater Fuel Conversions 1 Homes that have both electric and gas supplied by the same provider are eligible for water heater conversions or fuel switching from electric to gas Fuel switching refers to replacing the existing electric water heater with a new gas water heater Gas water heaters may be North Dakota Weatherization Field Standards January 2003 Page 49 4400 4000 General Heat Waste Measures 4400 Combustion Appliance Requirements replaced with electric water heaters if it is necessary to seal off an orphaned flue Clients have the option of declining or waiving a water heater conversion for personal reasons For example if a conversion requires that a new venting system be run through finished space and the client does not like the appearance the client may decline the conversion Agencies must first provide client education regarding the advantages and disadvantages of switching to
262. stic Testing Procedures 90 15 Threshold Cost of a Replacement CFL Yielding a Savings to Investment Ratio of 1 Replacement of 90 Watt Incandescent CFL Watts 15 Hours On Per Day gt 2 3 4 5 6 7 0 020 4 93 7 40 9 86 12 33 14 79 17 26 0 025 6 16 9 24 12 33 15 41 18 49 21 57 0 030 7 40 11 09 14 79 18 49 22 19 25 89 0 035 8 63 12 94 17 26 21 57 25 89 30 20 0 040 9 86 14 79 19 72 24 65 29 58 34 51 0 045 11 09 16 64 22 19 27 73 33 28 38 83 0 050 12 33 18 49 24 65 30 82 36 98 43 14 0 055 13 56 20 34 27 12 33 90 40 68 47 46 0 060 14 79 22 19 29 58 36 98 44 38 51 77 0 065 16 02 24 04 32 05 40 06 48 07 56 09 0 070 17 26 25 89 34 51 43 14 51 77 60 40 0 075 18 49 27 73 36 98 46 22 55 47 64 71 0 080 19 72 29 58 39 44 49 31 59 17 69 03 0 085 20 95 31 43 41 91 52 39 62 86 73 34 0 090 22 19 33 28 44 38 55 47 66 56 77 66 0 095 23 42 35 13 46 84 58 55 70 26 81 97 0 100 24 65 36 98 49 31 61 63 73 96 86 28 0 105 25 89 38 83 51 77 64 71 77 66 90 60 0 110 27 12 40 68 54 24 67 80 81 35 94 91 0 115 28 35 42 53 56 70 70 88 85 05 99 23 0 120 29 58 44 38 59 17 73 96 88 75 103 54 0 125 30 82 46 22 61 63 77 04 92 45 107 86 0 130 32 05 48 07 64 10 80 12 96 15 112 17 0 135 33 28 49 92 66 56 83 20 99 84 116 48 0 140 34 51 51 77 69 03 86 28 103 54 120 80 Fuel Cost per KWh North Dakota
263. stop leakage Seal kneewall floor cavities Check for completion of bypass sealing before installing any insulation 2 Attic insulation must be installed in such a manner that ensures complete coverage over heated areas and is installed at an even depth except where physical constraints may exist 3 Insulation must be installed according to the manufacturer s specifications for coverage and R Value Calculating the number of bags to be installed per the manufacturer s specifications is the best method for meeting manufacturer s specifications for loose fill insulation 4 Attics should be tested using zonal pressure diagnostics when the housing construction type or the air leakage rate indicates that there may be hidden air leakage or bypass pathways into the attic This test should be used to determine quality and completeness of air leakage and bypass sealing prior to and then after installing North Dakota Weatherization Field Standards January 2003 Page 53 5000 Insulation Requirements 5100 Attic Insulation insulation Please refer to Section 111000 on page 123 for instructions 5 Itis preferred that cellulose insulation be installed in site built homes 5121 Insulation Coverage and Density 1 Insulate uninsulated open joist attics to R 50 in all dwelling heated with any fuel by electric resistance and to R 60 for electric resistance heat Add insulation to other areas as necessary or as directed by the WXEOR audit program
264. sure difference at 50 Pascals measure record and enter the pressure from the zone to the outdoors ZONE OUT AP2 q With all the input data entered in the calculator press enter for the calculation of the answers r Record the three answers the building to zone BLD ZONE CFMbso the zone to outdoor ZONE OUT CFMso and the total path TOTAL PATH CFMso Dividing the first two numbers by ten gives an approximation of the square inches of leakage in the respective air barriers s Based on the ZPD results air seal as necessary t During or after air sealing perform add a hole ZPD to determine the effectiveness of the weatherization work For secondary zone testing a It is not necessary or possible to perform an add a hole test only pressure testing is required Therefore use of the ZipTest Pro software is not necessary b If the house zone pressure is equal to or greater than 35 Pascals it is not necessary to also take a pressure reading during or after air sealing work c If the house zone pressure is less than 35 Pascals continue to track progress by pressure testing during and then after air sealing work a 111100 Gas Range Testing 111110 Introduction 1 The purpose of this protocol is to guide the field analyst through a systematic procedure of gas range testing This protocol is intended to North Dakota Weatherization Field Standards January 2003 Page 126 11000 Diagnostic Testing Procedures
265. t determining the Building Tightness Limit CFM so value Do not conduct a depressurization blower door test while a wood stove fireplace or a vented space heater is operating a If one of these appliances is operating it will not be considered sufficient reason for never conducting a blower door test It is expected that weatherization personnel will shut down the appliance to conduct the test or that they will revisit the dwelling at a time when the appliance is not operating Do not conduct a depressurization blower door test when any combustion appliance is operating a It will be considered standard practice to positively shut off conventionally vented combustion appliances before the blower door test is conducted A procedure should be in place to ensure that the appliance is returned to the pretest condition Exceptions to appliance shut down include i Direct vent sealed combustion appliances ii Unvented gas appliances such as most gas ranges Electrical Safety 2610 Knob and Tube Wiring 1 If knob and tube wiring is active in an attic any insulation must be keep at least three inches from the wiring Blown insulation must be appropriately dammed to keep the insulation from advancing closer than three inches from the knob and tube wiring North Dakota Weatherization Field Standards January 2003 Page 36 2000 Health and Safety Requirements 2600 Electrical Safety 2 If active knob and tube wiring is foun
266. t it be setup and used properly at each weatherization job The depressurization blower door test is preferred for North Dakota Weatherization because it takes less time to perform than a pressurization test and it is the standard test used in the low income weatherization program across the U S The blower door testing procedures below assume the use of The Energy Conservatory TEC Minneapolis Blower Door Model 3 with the companion TEC analog magnehelic gauges or the TEC digital manometer Model DG 3 11120 Preparation for Blower Door Test 1 Subgrantees should maintain accurate calibration of blower doors and related equipment This includes a Blower door fan i There should be no physical damage to the fan ii The flow sensor on the Minneapolis Blower Door Model 3 is the white ring which is permanently attached to the end of the motor opposite the fan blade It is perhaps the most critical part of your Blower Door fan Make sure the sensor is in its proper position not damaged that the connected hose is in good condition and that the four holes in the sensor are not obstructed or blocked b If there is a problem with the fan or the flow sensor contact the manufacturer before further use c Magnehelic gauges round with needle indicators should be calibrated once every five years by the manufacturer d Digital pressure gauges should be calibrated annually by the manufacturer e For detailed maintenance recommendations
267. tandards January 2003 Page 181 12000 Glossary Flashing Waterproof material used to prevent leakage at intersections between the roof surface at walls or penetrations Floor joists The framing members that support the floor Flue A vent for combustion gases Foam board Plastic foam insulation manufactured most commonly in 4 x 8 sheets in thicknesses of 72 to 3 Foot candle A measure of light striking a surface Footing The part of a foundation system that transfers the weight of the building to the ground Frost line The maximum depth of the soil where water will freeze during the coldest weather ay ee Gable The triangular section of an end wall formed by the pitch of the roof Gable roof A roof shape that has a ridge at the center and slopes in two directions GAMA Gas Appliance Manufacturers Association Gasket Elastic strip that seals a joint between two materials General heat waste Weatherization measures for which savings or savings to investment ratios SIR are difficult or impossible to calculate Examples include all air sealing work ductwork sealing and insulation pipe insulation and dryer vent kit installation No SIR values are required for these measures Glazing Glass installation Pertaining to glass assemblies or windows Glazing compound A flexible putty like material used to seal glass in its sash or frame Gypsum board A common interior sheeting material for w
268. tee should not or may choose not to weatherize an otherwise eligible unit In order to deal with these situations each subgrantee must develop an approved a policy which when implemented allows weatherization staff to walk away from conditions and or circumstances that may be hazardous to their health or safety or that of the client s The following is a model walk away policy intended to list the more common conditions and situations a subgrantee may encounter while delivering weatherization services This list is not intended to be all inclusive of those instances in which a subgrantee may choose not to weatherize a unit In some instances corrective measures by the client owner may allow program services to proceed At a minimum the subgrantee walk away policy should contain the following 1 Procedure If an subgrantee can not or chooses not to weatherize a dwelling unit it must notify the client and owner authorized agent in writing and include the following items a The nature and extent of the problem s and how the problem s relate to the determination to not weatherize the unit b Any corrective action required before weatherization services can be initiated c A time limit for correcting problems so that weatherization services may be rescheduled d The right of appeal and e All correspondence justifying the decision to walk away must be kept in the client file 2 Withholding of Weatherization Services A subgr
269. tems Actual appliance output must be determined and fall within a range of 100 to 130 percent of the North Dakota Weatherization Field Standards January 2003 Page 33 2000 Health and Safety Requirements 2400 Combustion Appliance Safety Testing and Repairs required heat output of the heated space in its post weatherized condition 2425 Storage Water Heater Inspection All gas fired water heaters must meet the following specifications 1 All identified gas leaks should be referred to the appropriate person for repair All gas leaks should be documented in client file All water heaters must be properly vented All fossil fuel water heaters with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 All non sealed and sealed combustion water heaters must be tested with a CO testing device Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 2426 Combustion Air Supply a Atmospheric combustion appliances shall be provided with additional combustion air if there are indicators of inadequate combustion air These appliances must be provided with at least 50 cubic feet of indoor space for every 1000 Btuh of appliance input rating in the combustion appliance zone CAZ If the CAZ contains or is properly connected with less than a volume of 50 cubic feet of indoor space for every 1000 Btuh of appliance input rating it is defined
270. tended through the skirting to the outdoors 3 Dryer vent ductwork should be smooth surfaced and whenever possible not exceed fourteen feet No more than two 90 elbows may be used in the vent system Relocation of dryers may need to be considered to meet this vent pipe length limitation 4 Flexible metal vent pipe may be used if it does not exceed six feet in length 5 Gas dryer vent pipe should not be installed with sheet metal screws or other intrusive fasteners that will collect lint according to NFPA 54 2250 Building Tightness Limits BTL The building BTL value shall be recorded on the Diagnostic Field Form and placed in the client file The calculated Building Tightness Limit value for the dwelling must be based on the ASHRAE 62 requirements of 15 CFM per person and 0 35 air changes per hour Refer to page 105 for Building Tightness Limit calculation guidelines and use 2260 Ventilation Systems for Acceptable Indoor Air Quality 2261 New Systems Intermittent Operation 1 Exhaust fans that are intended for intermittent operation include kitchen and bathroom exhaust fans in dwellings that may or may not be tighter than the calculated Building Tightness Limit These fans are intended for occasional use during cooking baking showering and other times when moisture and odors are created by household activities 2 High quality exhaust fans shall be used that have a sone level of 1 5 or less are energy efficient and h
271. tends from the floor above to four feet down the wall It should be run horizontally in a manner that minimizes the number of seams The blanket may be slit at each floor joist to allow installation in a manner that minimizes gaps around the joist This insulation should extend downward 1 to a distance that is two feet below the exterior grade or 2 to the crawlspace floor and then horizontally across the floor for two feet which ever is appropriate Mechanically fasten the insulation and seal all joints with tape North Dakota Weatherization Field Standards January 2003 Page 65 5000 Insulation Requirements 5400 Floor Insulation 5400 Floor Insulation 5410 Inspection and Repairs 1 Precautions must be taken to insure adequate combustion air is being supplied through non operable vents for combustion appliances in crawl spaces 5411 Moisture Inspection and Repairs 1 All units must be inspected for problems associated with excess moisture 2 If floor insulation is installed over a crawlspace area the crawlspace floor should be covered with a 6 mil polyethylene moisture barrier when conditions warrant This polyethylene must be lapped at least 6 inches and joints and extended up the crawlspace wall by 6 inches 3 Identification of potential moisture problems shall be documented in the client file 4 Repair of moisture problems that will degrade or diminish the effectiveness of weatherization measures 5412 Electrical Safe
272. ties Duct work in wall cavities Dropped or suspended ceilings Moisture problems 4 An inspection from the attic should include an examination of the following a Open top plates and balloon framing b Type of electrical wiring in the walls anono c Knee wall areas 5211 Moisture Inspection and Repair 1 Any leaks or other moisture problems must be repaired prior to the installation of wall insulation 2 Repair any moisture problems that will degrade or diminish the effectiveness of weatherization measures 5212 Electrical Safeguards 1 Correct electrical problems such as unsafe wiring uncovered junction boxes or electrical situations which must be corrected prior to performing any other work in the attic s If insulation exists ensure that wiring is in a safe and meets applicable codes 2 Knob and tube wiring a If active knob and tube wiring is found in a dwelling attic walls or basement the walls of the dwelling must not be insulated b If knob and tube wiring has been deactivated and the dwelling has been rewired with BX Romex or other approved electrical cable the walls may be insulated without special precaution 5213 Treatment of Other Hazards 1 Use appropriate personal protective equipment and work practices in the presence of animal or insect hazards Ensure personal safety during work 2 Remove any items that need to be moved in order to install wall insulation effectively 3 Repair
273. timation a KWh yr usage data from the Table 11 9 AHAM data base f Refrigerator Degradation Factors i Identify the make and Refrigerator Age Factor model number of the Less than 5 years 10 refrigerator Find the 5 to 10 years ptt brand model and 10 to 15 years rang More than 15 years annual electrical consumption in a reliable AHAM listing of refrigerators If appropriate multiply the annual kWh yr consumption estimate listed by the degradation multiplier listed in Table 11 9 b KWh yr usage estimate based on refrigerator age or characteristics i Some refrigerators will not be considered for replacement They will not require AHAM data estimates metering or calculation of the replacement SIR These include 1 Refrigerators that where manufactured after 1993 However if you have good reason to believe the unit is not operating as it should metering is a good idea ii Some refrigerators will be replaced without metering If the kWh yr estimates can be found in the AHAM data use these values for adjusted for age efficiency degradation with above table for the calculation of the replacement SIR If these refrigerators cannot be found in the AHAM data do not meter them use the estimated kWh yr consumption listed in parenthesis after each type below for the calculation of the replacement SIR The refrigerators that fall into this category are 2 Units manufactured before 1973 1 700 kWh yr 3 Unit
274. tion Methods for Wall Insulation ils Wall areas above windows and doors except in mobile homes and the area below windows must be insulated whenever possible Uninsulated exterior walls without drywall paneling or other interior finishing material must be insulated if adding interior finishing material and insulation is deemed cost effective Fiberglass insulation must not be left exposed in living areas It is recommended that the tubing method be used rather than the nozzle method Removal of siding is required before drilling the sheathing unless conditions make this impossible The tubing method may be used to install insulation into sidewall by drilling one hole per story A flexible tube is inserted in the hole the end being pushed to the area to be insulated As the insulation fills the area the tube is slowing pulled out of the drilled hole filling the entire cavity as the tube is retracted When blowing brick walls from the exterior a minimum of a 5 8 inch hole is recommended when installing insulation through a mortar joint 5221 Blocking Construction details that allow insulation to escape from sidewall cavities such as balloon framed walls must be blocked or packed with insulation or other material in a manner that effectively retains the insulation material 5222 Materials In site built dwellings a Insulate all closed cavity sidewalls to 3 25 3 75 Ibs ft with cellulose insulation unl
275. tion a second memorandum signed by the estimator inspector and weatherization coordinator and placed in the client file should indicate that the client failed to return the final inspection form 7 The final inspection of a unit at a minimum shall include North Dakota Weatherization Field Standards January 2003 Page 10 1000 Administrative Scope and General Requirements 1700 Subgrantee Final Inspections a Verification that all materials reported on the final inspection sheet are present or can be physically accounted for on the materials returned sheet during the on site inspection by the state inspector b Materials were installed in such a way as to be safe effective and neat in appearance c All materials used on the home meet required North Dakota WAP standards d Verification that all combustion systems are in safe operating condition 8 The appropriate documentation must be in the client file Please refer to Section 1610 on page 7 for the file document requirements 1710 Allowable repairs 1 The cost of incidental or necessary repairs are allowable if they are necessary to protect the integrity of the installed weatherization materials 2 The costs for necessary repairs materials and labor must be factored into the SIR calculation in the approved energy audit system WXEOR of the measure s they affect Use the suggested allocation formulas listed below for distribution of costs among WAP installed meas
276. tioned square feet and by the number of heating degree days during one year HVI Home Ventilating Institute WAP Home Weatherization Assistance Program House pressure The difference in pressure between the inside and outside of the house HUD United States Department of Housing and Urban Development Humidistat An automatic control that switches a fan humidifier or dehumidifier on and off based on the relative humidity at the control Humidity ratio The absolute amount of air s humidity measured in pounds of water vapor per pound of dry air Hydronic A heating system using hot water or steam as the heat transfer fluid A hot water heating system common usage 4 Illumination The light level measured on a horizontal plane in foot candles Incandescent light The common light bulb found in residential lamps and light fixtures and sold in stores everywhere that is known for its inefficiency IAQ Indoor Air Quality Infiltration The uncontrolled movement of non conditioned air into a conditioned air space Infrared Pertaining to heat rays emitted by the sun or warm objects on earth Ingestion Ingestion is the process by which a substance enters the body by swallowing through the mouth The best defense is to wash your hands before eating or putting your fingers in your mouth keeping hazardous materials out of North Dakota Weatherization Field Standards January 2003 Page 184 12000 Glossary reach fr
277. tions 2200 Health and Safety Procedures The following section establishes areas of concern that may affect the health and safety of the workers and the clients In most cases the best approach to limiting the health and safety risk is to minimize their exposure to the hazard The inability to minimize exposure may result in some or all of the work being stopped on any particular dwelling The DCS expects the crews contractors and auditors to be able to work under conditions that do not jeopardize their own health and safety It is also expected that these field personnel will use caution and care while working on the client s home The office warehouse and other workspace owned or rented by each subgrantee should be a safe and healthy environment For detailed information on worker health and safety refer to Construction Industry OSHA Safety and Health Standards 29 CFR 1926 1910 The following are general guidelines for accident prevention and should be followed by agencies crews auditors and general contractors involved in weatherization work In addition this section outlines some of the employer responsibilities to the weatherization crews 2211 Employer and Subgrantee Responsibilities 1 It shall be the responsibility of the employer to initiate and maintain such programs as may be necessary to comply with this part North Dakota Weatherization Field Standards January 2003 Page 14 2000 Health and Safety Requirements 2200 Healt
278. tions i The line is badly kinked corroded or shows signs of the physical wear ii The line connection is the soldered two piece type connection iii The line was manufactured before 1973 Sometimes there is a metal ring on the flexible line that is dated If there is no dated metal ring use one of the first two criteria listed just above c Cleaning and tuning All gas fired units must be cleaned and tuned once every two to three years Make sure the client is having this service performed regularly 2 Oil fired unit requirements a Oil storage and piping Check the oil tank and piping for leaks and compliance with all appropriate codes b Cleaning and tuning All oil fired units should be cleaned and tuned annually Make sure the client is having this service performed regularly 3 Draft Spillage All boilers must be properly vented All non sealed combustion boilers must be tested with a draft testing device and meet the acceptable draft requirements There must be no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All boilers with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 4 Carbon monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 5 Sizing Replacement Sys
279. tiplier of 5 resulting in a pressure pan reading of 10 Pascals 11 If you are testing a house with a very leaky building shell and are not able to create a 50 Pa pressure difference with the blower door perform your pressure pan tests with the house at the highest achievable pressure In this case you will need to interpret your pressure pan readings carefully Compare the measured pressure pan reading with the maximum possible reading 12 Record the pre and post weatherization readings on the Diagnostic Field Form 11940 Duct Blower Testing for Leakage to Outdoors 11941 Introduction This required duct blower test requires measurement of duct air leakage to the outdoors not total duct leakage to outdoors and indoors During this test procedure a blower door fan will be used to pressurize the building to the test pressure while the duct blower system is used to pressurize the duct system to the same pressure as the building Because the duct system and the inside of the dwelling will be at the same pressure there will be no leakage between the ducts and the dwelling during the test The blower door fan should be set up to blow air into the building for pressurization Airflow through the blower door does not need to be measured during this test Because of this the blower door fan can either be set up in the pressurization test mode or it can be set up in the standard depressurization test mode with the fan direction sw
280. to house tightening For example if the DTL is 1600 CFMbso instruct the crew not to tighten to below 1600 CMF50 Remember the DTL is a pre weatherization guideline only it must never be used to replace the worst case draft test procedure 11600 Overall Tightness Limit OTL The Overall Tightness Limit OTL is simply the larger of the Building Tightness Limit BTL and the Depressurization Tightness Limit DTL Crews should do their best not to tighten below the OTL However there are circumstances when a crew will tighten below the OTL either knowingly or unknowingly This might happen when 1 Adding insulation especially to walls lowers the whole house CFMso by a large increment making the house tighter than either the BTL or the DTL Walls must always be fully insulated even if the crew knows that the building will become too tight 2 Indoor air quality problems warrant the tightening of the building to below one of these limits for example air sealing a wall between a house and an attached garage lowers the CFMsgp to a value less than the BTL or DTL Table 11 5 gives an example of the function these tightening limits play in the pre and post weatherization process If air sealing makes the house tighter than the BTL or the DTL make sure that the procedures are followed under the Building Tightness Limit and the Depressurization Tightness Limit procedures included in these standards North Dakota Weatherization Fi
281. ts 2200 Health and Safety Procedures b Standing water open sumps open wells dirt floors water stains etc C d in basements Also check to see if firewood is stored in the basement and whether laundry is hung to dry during the winter months Leaking supply or waste pipes Attic roof sheathing shows signs of mold or mildew Identification of existing or potential moisture problems shall be documented in the client file If existing moisture problems are found no air sealing should be done unless the source of the moisture can be substantially reduced or effective mechanical ventilation can be added to cost effectively remove the moisture In some cases air sealing must be done in order to reduce the source of the moisture i e sealing off crawlspaces from the house or sealing attic leakage to eliminate condensation on the roof deck Because air tightening may cause an increase in relative humidity client education should include information about moisture problems and possible solutions In the course of weatherization any low cost measures that help reduce the humidity levels in the house should be installed Examples of these activities are venting dryers venting existing bath or kitchen exhaust fans or installing moisture barriers on dirt floors A dwelling that has a CFMso greater than the Building Tightness Limit BTL is no guarantee that moisture will not be a problem in that home 2242 Repair or Eli
282. ubgrantee 4 The State WAP Office may require a subgrantee to inspect one hundred percent of installed measures if the quality of completed work is perceived to be deficient 5 Deficiencies noted during State monitoring that result in Major Findings or repeated Minor Findings may be considered as justification for requiring that the subgrantee re inspect dwellings Please refer to Section 1540 on page 4 for the details of Major and Minor Findings 6 Client or scheduling obstructions to final inspection a DCS recognizes that in some cases it may be impossible to complete a complete final inspection of the dwelling unit even after repeated efforts to schedule the final inspection In these cases the subgrantee must document that an inspector made a significant effort to inspect the dwelling after completion of the weatherization work At a minimum a visual inspection of any exterior weatherization measures must be completed b A memorandum must be put in the client file signed by the estimator inspector and the weatherization coordinator indicating the dates when the subgrantee attempted to inspect the residence i The subgrantee will also be required to mail an inspection form to the client for their signature along with a letter explaining that the subgrantee was unable to complete a full on site inspection ii If the client does not respond within two weeks the subgrantee may report the unit as a completion In this situa
283. ulose insulation unless a technical barrier prevents this technique When using blown fiberglass install at a density of 1 6 Ib ft Subgrantees should obtain a warranty of at least one year against voids of more than 5 percent from subcontractors installing wall insulation 5224 Plugs and Patching Where possible exterior lap siding must be removed and sheathing be drilled for the installation of insulation If the exterior siding is properly shedding water than patching of holes in the sub siding is not required Small pieces of fiberglass insulation can be inserted into the hole to prevent wicking of moisture from outside Plugs that are compatible with the siding or wall type must be used to cover the exposed surface that has been drilled Plugs must be sealed tightly and glued They must be primed when exposed to weather Subgrantees should paint and may texture to match plugs to the surrounding wall but may not paint or texture the entire wall 5225 Brick Siding Interior drill and blow techniques are preferred for homes with brick veneer siding that are going to receive sidewall insulation 5226 Quality Control When possible infrared scanning should be used as a quality control tool to check wall insulation work and identify areas of excessive air North Dakota Weatherization Field Standards January 2003 Page 60 5300 5000 Insulation Requirements 5300 Foundation Insulation leakage The infrared scanning devi
284. umbing within the closet that is susceptible to freezing must be insulated iv An adequate amount of combustion air must be provided to gas water heaters 71100 Combustion Systems 1 If interior combustion air is used for the furnace replacement with a sealed combustion direct vent furnace is mandatory North Dakota Weatherization Field Standards January 2003 Page 82 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements 8000 Combustion Appliances and Air Conditioners 8100 Combustion Appliance Requirements The efficient operation of heating systems is a critical aspect of general heat waste Detailed combustion system safety and efficiency standards are found in Section 2300 on page 25 The replacement of heating systems or major components of heating systems is allowable as a resolution of health and safety concerns if the appliance is operable at the time of initial assessment Minor repairs that will result in an operable appliance are allowable 8110 Combustion Appliance Work Documentation 1 Each client file must include documentation of all efficiency work and adjustments made to the water heating and space heating combustion appliances when applicable 2 Client file documentation must include information on the applicable combustion appliance efficiency tests see Section 8120 on page 83 and components see Section 8130 on page 84 3 Before the work on a combustion appliance
285. ur One thousandth of a kilowatt hour Weatherization The process of reducing energy consumption and increasing comfort in buildings by improving energy efficiency of the building and maintaining health and safety Weatherstripping Flexible gaskets often mounted in rigid metal strips for limiting air leakage Weep holes Holes drilled for allowing water to drain out of an area in a building component where it may accumulate Wet bulb temperature The temperature of a dampened thermometer of a sling psychrometer used to determine relative humidity Window films Plastic films coated with a metalized reflective surface that are adhered to window glass to reflect infrared rays from the sun Window frame The sides top and sill of the window which form a box around window sashes and other components Worst Case Depressurization A condition created when 1 all exhaust appliances bathroom exhaust kitchen exhaust vented dryers etc are operating 2 the interior doors of a house are in a position that causes the greatest negative pressure in the CAZ and 3 the furnace air handler is operating if such operation causes increased negative pressure in the CAZ Worst Case Draft Test A test which creates Worst Case Depressurization in a Combustion Appliance Zone CAZ This test is used to determine if combustion appliances will vent properly under these worst case conditions North Dakota Weatherization Field Standards Ja
286. ures a For site built homes and manufactured houses i For electrical inspections and repairs allocate one half of the cost to the attic insulation and one half the cost to the sidewall insulation ii For plumbing repairs allocate one half the cost to the floor perimeter measures and one half to the sidewall insulation iii For roofing repairs allocate one third the cost to the attic insulation one third to wall insulation and one third to the air leakage iv For ceiling repairs allocate one half the cost to the attic insulation and one half to air leakage v For siding repairs allocate one half the cost to wall insulation and one half to air leakage b For mobile homes i For belly repairs allocate one half to belly insulation and one half to air leakage ii For electrical inspections and repairs allocate one half the cost to the attic insulation and one half the cost to the sidewall insulation North Dakota Weatherization Field Standards January 2003 Page 11 1000 Administrative Scope and General Requirements 1700 Subgrantee Final Inspections iii For plumbing repairs allocate one half the cost to belly insulation and one half the cost to air leakage iv For roofing repairs allocate one third the cost to attic insulation one third to wall insulation and one third to air leakage v For ceiling repairs allocate one half the cost to attic insulation and one half to air leakage vi For sid
287. use is anticipated 4 For primary zone ZPD testing perform the add a hole test using the ZipTest Pro software loaded into the TI 86 calculator Follow these steps a Setup the blower door for building depressurization b With the digital manometer run a pressure hose from the lower tap on channel A to the zone you are testing try to use a blue hose Run another pressure hose from the lower tap on channel B to the outdoors try to use a green hose c Depressurize the building to 50 Pascals using the digital manometer set on channel B d Adjust the top 60 Pascal gauge on the magnehelic gauge set to 50 Pascals so that it corresponds with the pressure reading on the digital manometer By doing this you are ensuring that one gauge will agree with the other during the testing e On the digital manometer switch to channel A f Measure record and enter the pressure from the building to the zone BLD ZONE AP 1 g On the digital manometer move the pressure hose green from the lower tap on channel B to the upper tap on channel A Make sure the channel switch is set to channel A h Measure record and enter the pressure from the zone to the outdoors ZONE OUT AP1 i Determine where a temporary hole will be created either between the building and the zone B Z or between the zone and the outdoors Z O j Enter the location of the created hole in the ZipTest Pro software either in the building to zone ai
288. ution blower fan starts it might indicate a cracked or defective heat exchanger 8136 Storage Water Heater Inspection All gas fired water heaters must meet the following specifications 1 All identified gas leaks should be referred to the appropriate person for repair All gas leaks should be documented in client file All water heaters must be properly vented All fossil fuel water heaters with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 All non sealed and sealed combustion direct vent water heaters must be tested with a CO testing device Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 All gas and oil fired and electric water heaters must have a water temperature test If water temperature was found above 120 F at a faucet near the water heater the client should be informed about the advantages and disadvantages of lowering the water temperature If the client agrees to adjustment lower the water temperature to 120 F Mark the old setting on the control as a reference point Visually inspect the combustion chamber for rust dirt and proper burner alignment Visually inspect venting plumbing and gas piping Check the tank for water leaks and note any code violations 8137 Minimum Combustion Air Requirements Please refer to Section 2426 on page 34 for requirements 8138 All Other Heating Systems Th
289. vate the blower is to fire the furnace extreme caution must be used due to the potential of combustion backdrafting or flame rollout Close interior doors and measure the pressure difference between the main body of the house and the room you are closing off when standing on the main body side of the door with your pressure gauge If this pressure is negative leave this door open If this pressure is positive close this door Close the door to the CAZ this is often the basement door If closing this door results in a negative pressure in the CAZ with reference to the outdoors of a greater magnitude for example from a 2 to a 4 leave this door closed If closing this door decreases the magnitude of the pressure for example from a 4 to a 3 leave this door open Determine whether the furnace air handler fan contributes to depressurization This is done by turning the air handler fan off and then on again while watching the CAZ pressure with reference to outdoors Record the worst case depressurization that is the most negative pressure in the CAZ with reference to outdoors Under these worst case conditions fire the combustion appliance and determine if the appliance is drafting properly after two minutes Under these worst case conditions fire the combustion appliance and measure its draft After two minutes the draft should comply with the draft values in Table 11 6 or Table 11 7 If an acceptable draft is not obtained
290. vings b Client is receptive to the installation and c Appropriate client education is provided on the operation of the thermostat 4 Limit switch Gravity furnaces must be equipped with a working high limit switch that shuts the fuel supply off at approximately 250 F 5 Draft Spillage All furnaces must be properly vented All non sealed combustion furnaces must be tested with a draft testing device and meet the acceptable draft requirements There must be no spillage The flue must not be clogged disconnected or rusted to the point that it leaks All furnaces with the exception of direct vent units must be tested with worst case draft test procedures see Section 11700 on page 111 6 Carbon Monoxide CO Carbon Monoxide CO All non sealed combustion heating systems must be tested with a CO testing instrument Measured carbon monoxide levels must comply with Table 2 1 in Section 2300 on page 25 7 Filter lf the manufacturer intended that the appliance have a filter it should be checked for cleanliness If a filter was not intended by the manufacturer one shall not be installed 8 Other cleaning Other necessary cleaning should be done where applicable including air intakes burners furnace controls heat exchangers blower compartment and return air plenum registers and grilles 9 Btu hour Input for gas freestanding wall and floor units Actual appliance output must be determined and fall within a range of plus
291. xide Many spreader plates are intentionally bent into curved or angular shapes or dimpled to add strength Inspect carefully with a flashlight and inspection mirror to determine if the spreader plate has distorted from its original shape or has detached from the oven bottom Ignite the bake burner to inspect the flame The flame should not extend beyond the edge of the spreader plate Also inspect for carbon buildup on the spreader plate and the oven bottom Any carbon buildup can be an indication of incomplete combustion caused by flame quenching or a fuel rich gas mixture e If the range also has a broil burner at the top of the oven compartment check its flame for proper size and color North Dakota Weatherization Field Standards January 2003 Page 128 11000 Diagnostic Testing Procedures f Inspect the oven compartment and under the oven compartment for any other defects that could lead to unacceptable CO emissions g If the oven burner s is ignited with a standing pilot light verify that the pilot flame is present is about 5 16 in length and is soft blue in color not yellow When properly adjusted a standing pilot uses about 75 Btuh 3 Inspect gas range installation for code compliance Refer to the latest edition of the National Fuel Gas Code NFPA 54 section 6 15 Household Cooking Appliances 4 Verify that the range is set up for the supply gas When a gas range is setup for natural gas but has propane piped to it

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