Utica Boilers CuB Series Operation and Installation Manual
Contents
1. 106 44 33 12 RATINGS AND CAPACITIES Table 8 Sea Level Ratings AnD CERTIFIED SEA LEVEL RATINGS C www ahridirectory org NATURAL AND PROPANE GASES Boiler Input Rate Heatin Net AHRI MBH 19 Rating Water Capacity MBH 002 MBH CHB 100 1000 Btu hr British Thermal Units Per Hour 2 Heating Capacity and AFUE Annual Fuel Utilization Efficiency are based on DOE Department of Energy test procedures 9 Net Ratings based on piping and pickup allowance of 1 15 Contact Technical Support before selecting boiler for installations having unusual piping and pickup requirements such as intermittent system operation extensive piping systems etc 12 1 Ratings and Capacities e Constructed and hydrostatically tested for maximum allowable working pressure of 43 5 psig pounds per square inch gauge 43 5 psig 30MPa in accordance with ASME Boiler and Pressure Vessel Code Section IV Rules for Construction of Heating Boilers USA Input rates are derated 4 for each 1000 ft 300m above sea level beyond 2000 ft 600m CANADA Ratings in table 13 used for elevations up to 2000 ft 600m above sea level For elevations between 2000 ft 600m and 4500 ft 1350m derate 10 using high altitude kit Contact Provincial authority having jurisdiction for installations above 4500 feet 1350 m above sea level 34 12 RATINGS AND CAPACITIES Diagrams we Manifold Gas Pres2. 210 Hot Water Tank Return oS 185 Kg mitweight 6t j 5 201 100 29 5 3 GENERAL VIEW AND MAIN COMPONENTS Fire explosion asphyxiation and electrical shock hazard Disconnect electrical power supply and turn off gas at shutoff valve before attemting to remove boiler jacket Failure to follow these instructions could result in death or serious injury Remove Boiler Jacket 1 Unscrew screws A 2 Pivot jacket upwards See figure 3 3 Raise Jacket up and off boiler See figure 4 Figure 3 Jacket Removal Screw Figure 4 Pivot Jacket and Raise to Remove Locations 4 LOCATING BOILER 4 1 Boiler Location Considerations e Ambient room temperature always above 32 F 0 C to prevent freezing Approved for installation in closets e Protect gas ignition system components from water dripping spraying rain etc during operation and service circulator replacement control replacement etc e Wall mount only Boiler e Access to outdoors to meet minimum and maximum Front View pipe lengths for combustion air and vent piping See section 6 e Drainage of water or water antifreeze solution during boiler service or from safety relief valve discharge See section 5 e Access to system water piping gas supply and electrical service See sections 5 7 and 8 e Clearances to combustible materials and service clearances See Table 1
3. e Ethylene glycol can attack gaskets and seals used in hydronic systems e Use only inhibited propylene glycol solutions certified by fluid manufacturer as acceptable for use with closed water heating system Thoroughly clean and flush any system that used glycol before installing new Boiler e Provide user with Material Safety Data Sheet MSDS on fluid used NOTICE Do not expose boiler to freezing temperatures 5 3 Special Conditions e System piping exposed to freezing conditions Use inhibited propylene glycol solutions certified by fluid manufacturer for use with closed water heating system Do not use automotive or ethylene glycol e Boiler installed above radiation level or as required by authority having jurisdiction shall have low water cutoff protection e Boiler used in connection with refrigeration system Install piping in parallel with boiler with appropriate valves to prevent chilled medium from entering boiler 5 HYDRONIC PIPING e System piping connected to heating coils located in air UPPER handling unit exposed to refrigerated air circulation Install Figure 7 Indirect Tank Performance Chart flow control valves or other automatic means to prevent AVAILABLE PUMP HEAD vs FLOW for DHW INDIRECT TANK gravity circulation of boiler water during cooling cycle 20 4 5 4 Storage Tank Connection For Domestic Hot i Pn Ko Water Production e e Units electronic board is arranged
4. Turn gas shutoff valve CY to closed position Handle should be perpendicular to gas pipe Wait 5 minutes for any gas to clear Smell for gas including near floor If you smell gas STOP Follow instructions on this page What To Do If You Smell Gas If you do not smell gas go to next step Turn gas shutoff valve D to open position Handle 1277 should be parallel to gas pipe Turn ON electrical power to appliance Set thermostat to desired setting If the appliance will not operate follow instructions TO TURN OFF GAS TO APPLIANCE and call your service technician or gas supplier Figure 21 Gas Shutoff Valve Closed Position 26 10 OPERATING INSTRUCTIONS 10 3 Checks During Operation 10 5 Indicator During Operation e Boiler is arranged for connection to an external storage tank for hot water production optional All functions Heating relevant to domestic hot water production are only Call for heat generated by Room Thermostat is indicated active with the optional water tank connected by hot air flashing above radiator symbol on the control e Check for leaks in piping systems Correct immediately if found e Check the efficiency of the flue gases and combustion air ducts while the boiler is working e Check water is circulating between boiler and systems e Verify the gas valve modulates correctly in both heating and hot water production phases e Check proper ignition of the boiler by turning it on and
5. alan ECA RR EAM 22 A EBIECNICAECONNECHON OT TOTEM 23 O Start Up PO 24 10 lt ODELGUNJ INSEFUCHONE eT T UU T T TU 26 11 General Maintenance Ana CleaHhlfiblssssaunu sata au Riu IRR AGGA o AV 32 12 Ratings And Capacities ac EPC da OE Yarn S FUR EPIC AEO AEP 53 Lo 101 81 NOON 36 WINO T II I 37 Parts LISt CHB 100 nn nA 38 Repair Parts LISE 1 O onda Rari nire ud utl QI AA Mal RR RR ER 44 1 INTRODUCTION 1 1 Designated Use e Hot water heating boiler e ndoor installation e Closet or alcove installation e Catagory I or III Venting e For use with natural gas or liquefied petroleum gases LP propane LP kit available e Indirect heating is acceptable e Boiler is arranged for connection to an external storage tank for hot water production optional All functions relevant to domestic hot water production are only active with the optional water tank sensor connected 1 2 The unit MUST NOT e Directly heat potable water e Heat water with non hydronic heating system chemicals present example swimming pool water e Exceed 185 F 85 C system design temperature e Exceed 43 5 PSIG 1 3 Operational Features e Modulating 3
6. CHB 130 8 0 2 46 REPAIR PARTS LIST 130 esses TT KIT 3 4 SAFETY VALVE es jare 47 REPAIR PARTS LIST CHB 130 Veo LJ lt a gt D 012 ia C LS 48 REPAIR PARTS LIST 130 emere oo 49 NOTES LA NOTES T LA ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com
7. cfm per Mbh for all appliances located within space Additional requirements where exhaust fans installed Interlock each appliance to mechanical air supply system to prevent main burner operation when mechanical air supply system not operating All Indoor Air Calculate minimum volume for all appliances in space Use a different method if minimum volume not available o Standard Method Cannot be used if known air infiltration rate is less than 0 40 air changes per hour See Table 5 for space with boiler only Use equation for multiple appliances Volume gt 50 ft3 x Total Input Mbh o Known Air Infiltration Rate See Table 3 for space with boiler only Use equation for multiple appliances Do not use an air infiltration rate ACH greater than 0 60 Volume 2 15 ft3 ACH x Total Input Mbh o Refer to National Fuel Gas Code for opening requirements between connection indoor spaces e All Outdoor Air Provide permanent opening s communicating directly or by ducts with outdoors o Two Permanent Opening Method Provide opening commencing within 12 inches of top and second opening commencing within 12 inches of bottom enclosure Direct communication with outdoors or communicating through vertical ducts Provide minimum free area of 1 in2 per 4 Mbh of total input rating of all appliances in enclosure Communicating through horizontal ducts Provide minimum free area of 1 in2 per 2 Mbh of total input rating of all appli
8. 120 seconds display will show FH which identifies the air venting cycle for the heating system During the first 5 seconds the display will show the software release of the card also Open the gas valve before the boiler When FH vanishes boiler is ready to automatically work whenever indirect tank sensor or room thermostat requests heating Turning the boiler off Press the button below see item 7 on the control panel display for 5 seconds foe When the boiler is turned off the electronic board is still powered Domestic hot water and heating operation are disabled The antifreeze system remains activated To re light the boiler press the button see item 7 on the control panel display again for 5 seconds Boiler will be immediately ready to operate whenever indirect tank sensor or room thermostat demand Summer Winter Switch over NOTICE Activating this button will keep your boiler from operating Verify that boiler is not required to run Domestic Hot Water DHW needs Press the button for 2 seconds Display will activate Summer symbol see item 10 on the control panel display If optional tank sensor is installed boiler will activate DHW circuit only Antifreeze system stays on To turn off Summer mode press button again for 2 seconds Heating temperature setting Use heating buttons see items 3 and 4 on the control panel display to change the temperature from minimum of 86 F 30
9. ANSI Z223 1 NFPA 54 e National Electrical Code NFPA 70 e Canada e Natural Gas and Propane Installation Code CAN CSA B149 1 e Canadian Electrical Code Part I Safety Standard for Electrical Installations CSA C22 1 2 4 Requirements for Commonwealth of Massachusetts Boiler installation must conform to Commonwealth of Massachusetts code 248 CMR which includes but is not limited to e nstallation by licensed plumber or gas fitter 2 5 Where required by the authority having jurisdiction the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers ANSI ASME 501 3 GENERAL VIEW AND MAIN COMPONENTS Figure 2 Component Listing 278 22 95 28 E Th 5 28 364 16 27 2 8 NE M 81 22 8 lr gum 8 2 AT rom na Baz hp 95 114 29 28 36 114 3 GENERAL VIEW AND MAIN COMPONENTS MER T 5 SealdChambr 10 SuplySytem 11 SystemRetum o 16 ModwatngFan o 19 Combustion Chamber __22 Burner 20 28 Exhaust Manifold __29 Exhaust Outlet Manifold 32 Heating circulating pump __36 Automatic Air Vet __81_ Ignition and Detection Electrode __95 Diverter Valve S 209 Hot Water Tank Delivery
10. Pnp VO x Minimum clearance C Input Btu hr Clearance in m Over 50 000 12 Forced air WN inlet lt gt Lo For SI units 1 ft 0 305 m 1 in 25 4 mm R 1 Btu hr 0 293 W 2 w 12 in No 3 ft minimum Direct vent terminal clearance 72 PA RS gt o Figure 13 Two Venting Maintain 12 30cm US 18 46cm Canada clearance above highest anticipated snow level or grade S z 1 gt Combustion Air m Venting 20 6 COMBUSTION AIR AND VENT PIPING Figure 14 Chimney Venting with Room Air NOTICE Refer to section 6 1 numbers 3 through 12 page 15 of this manual for proper installation 4 gt Combustion Air mp Venting Figure 15 Chimney Venting with Outside Air Single Wall gt Combustion Air mi Venting DIRECT VENT Boiler constructed and installed so all combustion air is derived directly from outdoors and all vent gases are discharged to outdoors See Figure 15 21 7 GAS SUPPLY PIPING WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow gas supplier s instructions e If you cannot reach your gas supplier call the fire department 7 1 General e Use pipi
11. Set boiler on high fire e Use Ya 1 or 2 cu ft dial on gas meter Measure time required for one or more complete revolutions Measure time for 1 2 minutes e Calculate input 3600x Input MBH WE Combustion Air Test Example Gas flow from Port Meter 2 cuft Measured time 2 seconds 3600 2cuft Rate MBH E 55 100 seconds Table 7 Combustion Table Combustion Minimum Maximum Natural Gas High Fire CO at 100 96 349 7 8 Low Fire CO at 33 3 0 5 0 Figure 19 Gas Valve Two sampling points are available at top of the boiler one for venting and the other for combustion air To sample Open the air vent outlet plug Insert probes all the way in Turn on TEST mode wait 10 minutes for boiler to stabilize Take measurement ENT e 1 AL al D 2 0 A Pressure point upstream B Pressure point downstream C Modureg electrical connection D Protection cap E Minimum pressure adjustment F Modureg G Maximum pressure adjustment I Gas valve electrical connection N Compensation tube gt 25 If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life e This appliance is equipped with an ignition device e Before operating smell all around appliance area 10 OPERATING INSTRUCTIONS WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance e Do
12. for managing an 14 EE external storage tank for domestic hot water production 42 e See figure 10 for hydronic plumbing e Make electrical connections as shown on wiring diagram EEN on 36 Boiler s control system recognizes presence of hot water tank probe and automatically configures DHW function activating display and controls Match Indirect tank heat exchanger and boiler capacity Indirect tank requires dedicated pump See figure 7 and indirect tank specification to determine pump e e Available Pump Head feet I Incorrect tank size or insufficient flow may result in 5 Available pump head Flow F Unsatisfactory indirect tank performance eg mpm G Boiler short cycling i H Extended DHW calls resulting in delayed response to CH calls j m m C23 h Burn and Scald Hazard Safety relief vlave could discharge steam or hot water during operation Install discharge piping per these Figure 8 Safety Relief Valve amp Air Vent _ instructions Failure to do so could result in Viewed from front of boiler death or serious injury 5 5 Safety Relief Valve NOTICE Boiler rated at 43 5 psig 30MPa maximum allowable working pressure Boiler provided with 30 psig 21MPa safety relief valve e Install safety relief valve using pipe fittings
13. not touch any electrical switch do not use any phone in your building which automatically lights burner Do NOT try to e Immediately call your gas supplier from a light this burner by hand neighbor s phone Follow the gas supplier s instructions for gas Be sure to smell next to floor because some gas is heavier than air and will settle to the floor e If you cannot reach your gas supplier call the fire department e Use only your hand to turn the gas shutoff valve Never use tools If valve will not turn 10 2 TO TURN OFF GAS TO APPLIANCE by hand do not try to repair it call a qualified e Set thermostat to lowest setting service technician Force or attempted repair may e Turn OFF all electric power to appliance if service is result in fire or explosion to be performed e Do not use this appliance if any part has e Turn gas shutoff valve handle CY to closed position 10 1 OPERATING INSTRUCTIONS Stop Read Safety information above been under water Immediately call a qualified Handle should be perpendicular to gas pipe service technician to inspect appliance and to replace any part of control system and any gas control which has been under water Figure 20 Gas Shutoff Valve Open Position Set thermostat to lowest setting Turn OFF all electrical power to appliance This appliance is equipped with an ignition device which automatically lights the burner Do not try to light burner by hand
14. provided with boiler See figure 8 e Install safety relief valve with spindle in vertical position e Do not install shutoff valve between boiler and safety relief valve e Install discharge piping from safety relief valve See lt Coupling 1 NPT ee Safety Relief e Use 34 or ine afety Relie 2 se or anger pipe fees Nipple 1 x 5 e Use pipe suitable for temperatures of 375 F 191 C or greater e Individual boiler discharge piping shall be independent of other discharge piping 1 4 1 Cx Street Elbow 3 4 12 5 HYDRONIC PIPING Size and arrange discharge piping to avoid reducing safety relief valve relieving capacity below minimum relief valve capacity stated on rating plate Run pipe as short and straight as possible to location protecting user from scalding and properly drain piping Install union if used close to safety relief valve outlet Install elbow s if used close to safety relief valve outlet and downstream of union if used Terminate pipe with plain end not threaded 13 Figure 9 Safety Relief Valve Discharge Safety Relief Valve Piping Check Local Codes for Maximum Distance to Floor Gas Shutoff Valve in Open position Figure 10 Hydronic Piping 10 11 95 209 210 Domestic Hot Water Outlet Domestic Cold Water Inlet Heating System Supply Heating System Return Diverter Valve Hot Water Tank Delivery Hot Water Tank Retu
15. s instructions for specific guidelines 11 At beginning of each heating season and monthly during the heating season check all vent pipes and vent terminal to make sure there are no obstructions Periodically clean the screen in the vent terminal Table 4 Combustion Air and Vent Pipe Fittings Diameter MinLenght MaxLenght Material Standards AL294C Stainless UL1738 ANSI ASTM Stainelss Steel D2564 ANSI Air intake 3 5 ft 65 ft in nc ASTM F493 UL 1738 ULC636 08 AL294C Stainless UL1738 Equivalent Length of Venting Components 5 ft equivalent for a 3 90 elbow 2 1 2 ft equivalent for a 3 45 elbow 18 6 COMBUSTION AIR AND VENTILATION Provide combustion air and ventilation air in accordance with the section Air for Combustion and Ventilation of the National Fuel Gas Code ANSI Z223 1 NFPA 54 or Sections 8 2 8 3 or 8 4 of Natural Gas and Propane Installation Code CAN CSA B149 1 or applicable provisions of local building codes Provide make up air where exhaust fans clothes dryers and kitchen ventilation equipment interfere with proper operation National Fuel Gas Code recognizes several methods of obtaining adequate ventilation and combustion air Requirements of the authority having jurisdiction may override these methods e Engineered Installations Must be approved by authority having jurisdictions Mechanical Air Supply Provide minimum of 0 35
16. 1 turn down e ntegral Dual Limit Information and specifications outlined in this manual in effect at the time of printing of this manual ECR International Inc reserves the right to discontinue change specifications or system design at any time without notice and without incurring any obligation whatsoever 2 IMPORTANT SAFETY INFORMATION 2 1 General Boiler installation shall be completed by qualified agency See glossary for additional information Fire explosion asphyxiation and electrical shock hazard Improper installation could result in death or serious injury Read this manual and understand all requirements before beginning installation 2 2 Become familiar with symbols identifying potential hazards A This is the safety alert symbol Symbol alerts you to potential personal injury hazards Obey all safety messages following this symbol to avoid possible injury or death A DANGER Indicates a hazardous situation which if not avoided WILL result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE Used to address practices not related to personal injury 2 3 Installation shall conform to requirements of authority having jurisdiction or in absence of such requirements e United States e National Fuel Gas Code
17. Boiler control does not provide 24 VAC power to central heating thermostat Do not use to power 24VAC 2 138 Optional External Outdoor Reset Sensor thermostat Connections on 5 amp 6 terminals 155 Optional Indirect Tank Sensor Connections on 7 amp 8 terminals B Locate and install thermostat per manufacturer s instructions Maximum wire length is 330 ft 100m 370 Low Water Cutoff LWCO field source for 22 ga wire Connections on 1 amp 2 terminals are 120 Volts A C C Connect wires to terminals 1 and 2 as shown in Connections on 3 amp 4 are dry contact only figure 17 Wires are interchangeable 23 9 START UP PROCEDURE 9 1 Fill Boiler With Water And Purge Air To maintain boiler efficiency and prevent boiling inside the heat exchanger flush entire heating system until clean Flush heating system including all heating zones Fill boiler with potable water Fill boiler and system piping with water or antifreeze water solution if used See antifreeze information Section 5 3 page 11 Purge air from boiler using air vent Purge air from system piping Inspect system piping and boiler connections Repair any leaks immediately Activate all heating zones and calls for heat including CH calls and DHW calls if available Do not open gas shutoff valve until all air is purged from system Asphyxiation hazard Carbon monoxide is odorless tasteless clear colorless gas which is hig
18. C to a maximum of 185 F 85C it is advisable to not operate boiler below 113 45C Domestic hot water temperature adjustment Operate DHW buttons see items 1 and 2 on the control panel display to vary the temperature from a minimum of 50 F 40C to a maximum of 149 F 55C 28 10 OPERATING INSTRUCTIONS Hot water tank exclusion economy Hot water tank temperature maintaining heating can be excluded by the user excluded domestic hot water will not be delivered The hot water tank can be deactivated by the user ECO mode by pressing the ECO COMFORT button detail 7 control panel display In ECO mode the display activates the ECO symbol detail 12 on control panel display To activate COMFORT mode press the ECO COMFORT button detail 7 on control panel display again Sliding temperature When the optional external probe is installed the boiler control system operates with Sliding Temperature In this mode the temperature of the heating system is controlled according to the outside weather conditions in order to ensure high comfort and energy saving throughout the year As the outside temperature increases the system delivery temperature decreases according to a specific compensation curve With Sliding Temperature adjustment the temperature set with the heating buttons details 3 and 4 on control panel display become the maximum system delivery temperature Manufacture recommends se
19. SET 68 OFFSET 104 Maximum boiler flow temperature Maximum boiler flow temperature 68 68 50 32 14 4 68 50 32 14 4 Outside Air Temperature Outside Air Temperature Heating Temperature Adjustment Adjustment can be made from the boiler control panel Domestic Hot Water Temperature Adjustment can be made from the boiler control panel Summer Winter Switchover Summer mode has priority over a possible heating demand On disabling DHW from the menu the boiler selects the Economy mode In this condition the button 7 from control panel display is disabled Eco Comfort Selection On enabling DHW from menu the boiler selects the Comfort mode In this condition it is possible to select on of the two modes with the button 7 from control panel display Boiler card manages Sliding Temperature adjustment the boiler card Sliding Sliding Temperature mE Temperature has priority 30 10 OPERATING INSTRUCTIONS Water system pressure adjustment The filling pressure with system cold read on the boiler water gauge must be approximately 11 psi If the system pressure falls to values below minimum the boiler control will activate fault F37 Low system pressure fault aa Once the system pressure is restored the boiler will activate the 120 second air venting cycle indicated on the display by FH TEST mode heating power 100 Press the heating buttons simultaneously for 5 seconds to turn on TEST mode The
20. TM D2564 ANSI ASTM F493 UL 1738 ULC636 08 Stainelss Steel PVC CPVC PP Aluminum Combustion Air 6 COMBUSTION AIR AND VENT PIPING OF DIRECT VENT AND CATEGORY III Induced Draft Boilers Horizontal Category III venting systems installation shall conform to the requirements of the authority having jurisdiction or in the absence of such requirements to the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or Natural Gas and Propane Installation Code CAN CSA 149 1 1 Boilers may be vented horizontally Vent pipe is pitched down from boiler to vent termination Do not connect other appliances to this vent 2 Vent Pipe Material UL Listed AL294C Stainless Steel vent pipe and fittings 3 Clearance to Combustible Materials For stainless steel vent pipe maintain 6 minimum air space clearance to combustible materials 4 Vent Pipe Size 3 vent pipe connected directly to the outlet of the induced draft blower 5 Vent Pipe Length A For stainless steel vent pipe the maximum horizontal vent length is 65 equivalent feet B Minimum horizontal vent length is 5 equivalent feet C For 3 90 elbows 5 equivalent feet of vent length 6 Vent Termination Fitting For all vent pipe materials you may use either A 90 elbow pointing down fitted with a minimum 1 4 mesh screen to keep out rodents and birds The elbow shall be of the same material and size as vent pipe The elbow exit should be at least 6 a
21. ances in enclosure 9 One Permanent Opening Method Provide opening commencing within 12 inches of top of enclosure Provide minimum clearance of 1 inch on sides and back and 6 inches on front of boiler does not supersede clearance to combustible materials 9 Combination Indoor and Outdoor Air Refer to National Fuel Gas Code for additional requirements for louvers grilles screens and air ducts Combination Indoor and Outdoor Air Refer toNational Fuel Gas Code for application information National Gas and Propane Installation Code Requires providing air supply in accordance with Section 8 2 and 8 3 when combination of appliances has a total input of up to and including 400 Mbh 120kW Does not have draft control device Section 8 4 when combination of appliances has total input exceeding 400 Mbh 120 kW Refer to Natural Gas and Propane Installation Code for specific air supply requirements for enclosure or structure where boiler is installed including air supply openings and ducts Table 5 Air Infiltration Known Air Infiltration Rate Method Air Changes Per Hour Standard Method 01 02 03 04 05 06 5000 15 000 7 500 5 000 3 750 3 000 2 500 6500 19 500 9 750 6 500 4 875 3 900 3 250 6 COMBUSTION AIR AND VENT PIPING Figure 12 Horizontal Venting Clearances Mechanical draft vent terminal C x Mechanical draft vent terminal RY Less 2 4 ft minimum than n LZY
22. and figure 5 e he boiler must not be installed on carpeting Figure 5 Boiler Clearances Boiler Side View TABLE 1 BOILER CLEARANCES Combustible 1 3 cm 1 3 1 3 cm 0 0 cm 12 30 cm 3 8 1 cm Vent piping 6 15 cm 6 15 cm Required distances measured from boiler jacket 2 Service proper operation clearance recommendation 4 LOCATING BOILER 4 2 Pre pipe supply and return water connections Figure 6 Wall Mounting Bracket with factory fittings before wall mounting 4 3 Wall Mounting 23 238 Mount boiler on wall using wall mounting bracket included 2 4cm 2 4cm with unit e Structure must be capable of supporting boiler weight plus 60 155 28 kg See page 7 e Wall mount bracket has 2 slots spaced at 91 4 23 5cm on center e Attach wall mount bracket level on wall e Boiler must engage with wall mount bracket See figure 6 914 23 5cm Boiler weight exceeds 75 pounds 34 kg Do not lift boiler onto wall without assistance NOTICE Lift boiler using chassis Using front jacket vent piping water or gas fittings to lift boiler may cause damage to the boiler 10 5 HYDRONIC PIPING 5 1 General e nstall piping in accordance with authority having jurisdiction NOTICE Use two 2 wrenches when tightening and fitting pipe to boiler s threaded fittings Boiler s internal piping can be damaged if subjected to excessiv
23. boiler will ignite at the maximum heating power set as described in the following paragraph On the display the heating and tap water symbols will blink alongside it will show the heating power and the ignition power respectively To turn off TEST mode repeat the sequence for turning it on 31 11 GENERAL MAINTENANCE AND CLEANING 11 1 Beginning of Each Heating Season 11 2 Annual Shut Down Procedure e Check boiler area is free from combustible materials e Follow instructions To Turn Off Gas To Appliance unless gasoline and other flammable vapors and liquids boiler is also used to supply domestic hot water See e Visually inspect combustion air and vent piping for section 10 page 26 proper operation Check for and remove any obstruction e Drain system completely if system does not have to flow of combustion air or vent gases Immediately antifreeze when heating system is to remain out of repair or replace pipe showing deterioration or leakage service during freezing weather Reassemble per instructions in section 6 Ensure proper reassembly and resealing of system e Test safety relief valve for proper operation Refer to Following service procedures must be performed valve manufacturer s instructions packaged with relief by qualified service agent Boiler owner shall not valve attempt these steps Failure to do so could result in e Examine flue passages in heat exchanger burner and death or serious injury cleaning i
24. cod 3541 240 Model CHB 100 CHB 130 WALL MOUNTED GAS BOILER INSTALLATION OPERATION amp MAINTENANCE MANUAL CERTIFIED www ahridirectory org PE PT 2 we Us tre Manufactured for ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Web site www ecrinternational com P N 240010633 Rev B 07 17 2014 DIMENSIONS Figure 1 Overall Dimensions CHB 100 CHB 130 TOP VIEW TOP VIEW 7 11 16 in 7 11 16 in 266 mm p e jj 22 d rom in 311 32in 417 32in 417 32in 3 11 32 in N LEFT SIDE VIEW zl FRONT VIEW AD 5 15 3 4 in 7 Gas Inlet 3 4 10 System Delivery 1 MPT 11 System Return 1 MPT 209 Hot Water Tank Delivery 3 4 Capped 210 Hot Water Tank Return 3 4 Capped BSPT To NPT Adapters Included E e I e 6 13 16 in BOTTOM VIEW TABLE OF CONTENTS ON 4 2 Important Safety 5 3 General View and main s Pausa Xu ada A RR RC 6 4 Locating Boiler ETT ETE 9 SeA OMG PIDIN errana aAA TTE 11 6 Combustion Air And Vent Piping Category I Chimney 15 6 Combustion Air And Vent Piping of direct vent and Category 17 7 Gas Supply PIPING
25. diction or in absence of such requirements to the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or Natural Gas and Propane Installation Code CAN CSA B149 1 2 Increaser fitting is required on this boiler for Category I venting and 4 is minimum permissible vent diameter This does not imply vent connector is intended to be 4 diameter pipe Vent connector shall be sized according to appropriate venting tables in the National Fuel 3 Gas Code and may be required to be larger than 4 diameter Figure 11 Combustion Air Fitting NOTICE Boiler installation for chimney venting is not complete unless increaser fitting is located and secured 3 These are Category I and Category III high efficiency boilers with lower stack or exhaust temperature 4 Venting into masonry chimney without liner line chimney from top to bottom with either A Listed Type B vent pipe B Listed flexible vent liner C Poured ceramic liner 5 Outside chimneys should not be used unless they are choose one of the following A Enclosed in a chase B Lined with Type B vent pipe Horizontal Venting requires field supplied appliance adapter for the boiler flue outlet C Use listed flexible vent liner Boiler is provided with a 3 vent connection 3 x 4 D Use certified chimney lining system increaser must be field sourced for chimney application 6 Vent connector from boiler to chimney should run as This does not mean that the connection to t
26. e torque e Support system piping and safety relief valve discharge piping Boiler s internal piping and wall mount bracket can be damaged if subjected to excessive weight e Size central heating pump and domestic hot water pump if used for system requirements only Internal heat exchanger pump compensates for pressure drop through boiler internal piping and heat exchanger e Thoroughly clean and flush system before connecting to boiler e f oil is present in system water use approved detergent to wash system e Flush system to remove any solid objects such as metal chips fibers or Teflon tape etc 5 2 Water System Characteristics e Water in the heating system must have protection of metallic materials against corrosion e Filling water and subsequent replenishing must be clear with hardness under 150 ppm CaCO3 A treated with approved conditioning chemicals to ensure prevention of corrosion and attack on metals and plastics that gases do not form B and bacterial or microbial masses do not proliferate in low temperature systems e Hardness exceeding 150 ppm CaCO3 appropriate water softening treatment and or use of suitable anti fouling agents must be provided Water contained in the system must be checked at least yearly and have A pH above 7 and under 8 5 under 8 with presence of components in aluminum or light alloys B iron content Fe less than 0 5 mg l C copper content Cu less than 0 1 mg l D tota
27. et 2 13m above adjacent public walkway The vent terminal shall not be installed closer than 3 feet 0 9m from the inside corner of an L shaped structure Termination of the vent should be kept at least 3 feet 0 9m away from vegetation The venting system shall terminate at least 4 feet horizontally from and in no case above or below unless a 4 foot horizontal distance is maintained from electric meters gas meters regulators and relief equipment e The venting system shall terminate at least 4 feet below any eave soffit or roof overhang e he venting system shall not terminate underneath any deck patio or similar structure e Put vent on a wall away from the prevailing winter wind Locate or guard the vent to prevent accidental contact with people or pets e Terminate the vent above normal snow line Avoid locations where snow may drift and block the vent Ice or snow may cause the boiler to shut down if the vent becomes obstructed e Under certain conditions flue gas will condense forming moisture In such cases steps should be taken to prevent building materials at the vent terminal from being damaged by exhaust of flue gas United States Terminate vent system at least 4 feet 1 22m horizontally from and in no case above or below unless a 4 feet 1 22m horizontal distance is maintained from electric meters gas meters regulators and relief equipment Canada Terminate vent system at least 6 feet 1 83
28. f necessary by following instructions in Annual Inspection and Cleaning of Boiler Components in this section 11 3 Annual Inspection and Cleaning of Boiler e Circulator pump and combustion air blower motor Components furnished with boiler are permanently lubricated from e Burner and heat exchanger inspection and cleaning factory and require no further lubrication Lubricate field e Remove any remaining loosened sediment using shop sourced pumps and or motors according to pump and or vacuum with snorkel attachment motor manufacturer s instruction Check following components are operating properly and are free of blockages or obstructions e air vent e check air inlet for blockage and clean as required e check boiler for any sign of leaks e Check heating system expansion tank e Check the Air pressure tubing 32 12 RATINGS AND CAPACITIES Data it CHB100 CHB130 Boiler category Category Ill Category I III Type of Gas NaturalGas NatwalGas 100000 130000 Maximum Input 0 2000 Ft Maximum Input 2000 4500 Ft y Minimum Input 2000 4500 WC 3 5 3 5 Min Inlet Gas Pressure Manifold Max input a gas pressure Min Btu hr 85000 110000 Electrical input 120V 60Hz 12A 120V 60Hz 12A Orifice Sizeo 550 13mm X 13mm Btu hr 100000 130000 Btu hr 36000 49000 Input LP 0 2000 Ft
29. he chimney will directly as possible with as few elbows as possible always be 4 15 6 COMBUSTION AIR AND VENT PIPING CATEGORY I CHIMNEY VENT 6 2 Minimum Vent Pipe Clearance Use Type B vent pipe through crawl space Where vent pipe passes through combustible wall or partition use ventilated metal thimble Thimble should be 4 inches larger in diameter than vent pipe e Boiler installed with single wall vent must have 6 clearance between its surface and any combustible material New Type B gas vent or flexible liner must be installed in accordance with instructions furnished with vent Maintain clearances as specified for vent pipe e Verify vent pipe is fire stopped where it goes through floor or ceiling It should have approved vent cap with clearances from roof If clearances are less than shown have vent checked by local authorities Figure 13 Page 20 e Vent connectors serving appliances vented by natural draft shall not be connected into any portion of mechanical draft systems operating under positive pressure 6 3 Removing Existing Boiler From Common Venting System When an existing boiler is removed from a common venting system common venting system is likely to be too large for proper venting of the appliances remaining connected to it 1 Atthe time of removal of an existing boiler the following steps shall be followed with each appliance remaining connected to the common venting system placed in ope
30. hly toxic Carbon monoxide production shall not exceed 400ppm Failure to follow these instructions could result in death or serious injury Asphyxiation hazard Verify cap is firmly placed on combustion analyzer port to prevent CO emission Failure to do so could result in death or serious injury 9 3 Burner Pressure Adjustment Unit has flame modulation with two fixed pressure values minimum and maximum See sec 12 page 33 Connect pressure gauge to pressure point B downstream of the gas valve 9 2 Boiler Start up and Operational Test 1 Remove protection cap D 1 Verify air is purged from hydronic piping 2 Operate boiler in TEST mode 2 System test pumps verify each pump is 3 Adjust maximum pressure by turning screw G operational clockwise to increase pressure and counter clockwise 3 Verify gas piping to decrease e Confirm pressure test See section 7 3 page 22 4 Disconnect one of two connectors C from modulation e Visually inspect piping to determine there are no regulator on the gas valve open fittings or ends and all valves at unused 5 PS pressure by turning screw E O outlets are closed and plugged capped to increase the pressure and counter clockwise to e Purge air from pipin 9 m PIPI 6 Turn burner on and off verify minimum pressure e Check piping and connections for leaks immediately remains stable after gas is turned on Shut off gas supply and 7 Reconnect connector C de
31. id or other leak detection method acceptable to authority having jurisdiction Do not use matches candles open flames or other methods that can provide ignition source e Correct leaks immediately and retest 22 Figure 16 Manual Main Gas Shutoff Valve Outside Boiler Jacket With Manufacturer Suggested Piping With Drip Leg Gas Connection Nipple 3A x 3 NPT Tee 34 NPT gt i 34 Gas Nipple Shutoff Nipple 34 X e 3A x 3 Valve in ON 3 NPT NPT Postion 34 Pipe D om G Manufacturer suggested gas piping with drip leg Table 6 Gas Supply Pressure Gas Supply Pressure Min Max 3 5 14 w c 3 3 0 7 kPa kPa 8 ELECTRICAL CONNECTIONS Figure 17 Terminal Block Electrical shock hazard Turn OFF electrical power supply at service panel before making electrical connections Failure to do so could result in death or serious injury 8 1 General Electrically bond boiler to ground in accordance with requirements of authority having jurisdiction Refer to e USA National Electrical Code ANSI NFPA 70 e Canada Canadian Electrical Code Part I CSA C22 1 Safety Standard for Electrical Installations 8 2 Line Voltage Connections Boiler Provide individual 120V 15 amp circuit recommended with fused disconnect or service switch as required by authority having jurisdiction 8 3 Central Heating Thermostat 1 10 dry contacts rated 0 5 amps 120 VAC
32. improper operation of the common venting system should be corrected so the installation conforms with the National Fuel gas Code ANSI Z223 1 NFPA 54 and or the Natural Gas and Propane Installation Code CAN CSA B149 1 When re sizing any portion of the common venting system the common venting system should be re sized to approach the minimum size determined using the appropriate tables in Chapter 13 of the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or the Natural Gas and Propane Installation Code CAN CSA B149 1 9 Itis recommended that existing gas vents be checked to be sure they meet local codes 6 4 Modulating Fan e Unit is equipped with an advanced combustion air vent flow control system with modulating fan and pressure sensor e Unit automatically adapts its operation to flue type and length without requiring adjustments during installation or use of baffles in combustion circuit e Unit consistantly and automatically regulates combustion air and vent flow according to change in thermal load Combustion and heat exchange occur in optimum conditions Unit s thermal efficiency remains high throughout its power range 6 5 Venting Materials e See Table 3 Table 3 Combustion Air and Vent Pipe Fittings Category I Chimney Vent Standards Type B Vent UL 441 ULC S605 Masonry Chimney must conform to proper sizing and materials National Fuel Gas Code ANSI Z223 1 NFPA 54 Vent Pipe 8 Fittings ANSI AS
33. just the ignition power Check the ionisation electrode wiring Check the card No gas A01 No burner ignition Ignition detection electrode fault gnition power too low Flame present signal with burner Electrode fault A02 off Heating sensor damaged Check correct heating sensor positioning and operation Overtemperature protection A03 activation Check the circulating pump Vent the system No water circulation in the system The air pressure transducer does not receive a sufficient minimum FI i en value within 25 seconds ue not correctly sized or obstructe V Low pressure in the gas system 06 flame after the ignition stage a Burner minimum pressure setting Delivery sensor 1 fault Wiring shorted Wiring disconnected ncorrect air pressure transducer wiring Check the wiring Check the length of flue and that it is clean Check the gas pressure Check the pressures N gt 2 o 2 2 o D o 3 lt Q n Q D A 3 Sensor damaged DHW sensor fault Wiring shorted Wiring disconnected Sensor damaged Delivery sensor 2 fault Wiring shorted A15 Air signal protection activation ea See fault 5 Supply voltage under 170V Electric mains trouble Check the electrical system Faulty mains frequency Electric mains trouble Check the electrical system Pressure too low Fill the system Q 5 5 l
34. l content of chlorides nitrates and sulfates less than 50mg I must contain conditioning chemicals in concentration sufficient to protect system for a year There must be no microbial or bacterial loads in low temperature systems Conditioners additives inhibitors and anti freeze fluids can be used only if manufacturer guarantees they are suitable for use in heating systems and they do not cause damage to heat exchanger or other components and or materials of boiler and system Use of generic chemicals not specifically suitable for use in heating systems and or incompatible with boiler materials and system is forbidden E 11 Conditioning chemicals must ensure complete deoxygenation of water and contain specific protective agents for yellow metals copper and its alloys anti fouling agents for limescale at least up to 150 ppm CaCO3 pH neutral stabilizers and in low temperature systems specific biocides for use in heating systems In systems with continuous intake of oxygen e g floor systems without anti diffusion pipes open expansion vessels or intermittent e g in case of frequent replenishing a separator must be provided Regarding domestic hot water DHW no type of treatment which could prevent its possible food use can be provided for e Poison hazard Ethylene glycol is toxic Do not use ethylene glycol e Never use automotive or standard glycol antifreeze even ethylene glycol made for hydronic systems
35. lating pump 278 Double sensor Safety Heating 42 DHW temperature sensor see kit 297 Air pressure transducer 44 Gas valve 370 Low Water Cutoff LWCO field sourced 47 Modulation Regulator 24V 72 Room thermostat field sourced 81 Ignition detection electrode 114 Water pressure switch 138 External probe not fitted 37 REPAIR PARTS LIST CHB 100 KEY Number Description Qt A01 FE3980B830 CASING CTR 1 8 REPAIR PARTS LIST CHB 100 Part Number FE3980C200 KIT CONTROL BOX FE3980B850 CONTROL BOARD DBM34 FE3980C210 KIT FRONT COVER CTR FE3980B840 KIT PRESS TEMP GAUGE FE3980C860 KIT WIRING FE3980C220 MONO CABLE EL 39 REPAIR PARTS LIST CHB 100 So J 40 REPAIR PARTS LIST CHB 100 KIT 3 4 SAFETY VALVE 41 REPAIR PARTS LIST CHB 100 WCC 007 509 gt 0 QI Ur E 8 4 2 8c 4 ou m 1 42 REPAIR PARTS LIST CHB 100 O os reme KIT COMBUSTION CHAMBER INSULATION FE3980C310 SR AEO4 FE3980B960 GAS VALVE VGU 54S ER FE3980C170 PRESSURE TRANSDUCER wuwoereworr anwewamemsm 43 REPAIR PARTS LIST 130 KEY Number Description Qt A01 FE3980B830 CASING CTR 8 REPAIR PARTS LIST 130 45 REPAIR PARTS LIST
36. m horizontally from and in no case above or below unless a 6 feet 1 83m horizontal distance is maintained from electric meters gas meters regulators and relief equipment Joining and Sealing the Vent Pipe The vent pipe needs to be both watertight and gas tight Seal all joints and seams following vent pipe manufacture s installation instructions Support Spacing Do not restrict thermal expansion movement of the vent The vent pipe must expand and contract freely with temperature change Each run of vent piping shall be supported following vent pipe manufacture s instructions 6 COMBUSTION AIR AND VENT PIPING OF DIRECT VENT AND CATEGORY III 10 If the horizontal vent must go through a crawl space or other unheated space the cool temperatures will likely i cause the flue gases to continuously condense inside Vent extending through exterior wall shall not the vent pipe Do not insulate the vent pipe It must terminate adjacent to wall or below building visible for monthly inspection Insure that the vent pipe extensions such as eaves balconies parapets is properly pitched away from the boiler with no low decks Failure to comply could result in death or spots so that condensate in the vent will drain away serious injury from the boiler An insulated enclosure or chase with access for inspection and servicing of the vent may be required to prevent freezing of liquid condensate Consult the vent pipe manufacturer
37. ng materials and joining methods acceptable to authority having jurisdiction In absence of such requirements e USA National Fuel Gas Code ANSI Z223 1 NFPA 54 e Canada Natural Gas and Propane Installation Code CAN CSA B149 1 e Size and install gas piping system to provide sufficient gas supply to meet maximum input at not less than minimum supply pressure See Table 6 e Support piping with hooks straps bands brackets hangers or building structure components to prevent or dampen excessive vibrations and prevent strain on gas connection Boiler will not support piping weight e Use thread joint compound pipe dope suitable for liquefied petroleum gas e Provide sediment trap up stream of gas valve e nstall manual main shutoff valve outside of jacket See figure 16 7 2 Conversion To LP Refer to Gas Conversion Kit Instructions 7 DANGER Fire Hazard Do not use matches candles open flames or other methods providing ignition source Failure to comply will result in death or serious injury 7 3 Leak Check Gas Piping Pressure test boiler and gas connection before placing boiler in operation e Pressure test over 1 2 psig 3 5 kPa Disconnect boiler and its individual gas shutoff valve from gas supply system e Pressure test at 1 2 psig 3 5 kPa or less Isolate boiler from gas supply system by closing manual gas shutoff valve See figure 16 e Locate leakage using gas detector noncorrosive detection flu
38. off with the room thermostat e Check parameters are programmed correctly and perform any required customization compensation curve power temperatures etc Hot water If optional tank sensor is installed call for hot water is 10 4 Control Panel indicated by hot water flashing under the tap on the control N LE 10 6 Turning on and off NO electrical power to the boiler 1 7 2 9 Seu 4 Key 1 DHW Temperature Setting Decrease Button 2 DHW Temperature Setting Increase Button 3 Heating System Temperature Setting Decrease Button CH 4 Heating System Temperature Setting Increase Button CH 5 Display The antifreeze system does not work when power and or 6 Summer Winter Mode Selection Reset Button gas to the unit are turned off To avoid damage caused by 22 Economy Comfort Mode Selection Button freezing during long idle periods in winter it is advisable to 9 DHW Mode drain all water from the boiler DHW circuit and system or 10 Summer Mode drain just the DHW circuit and add a suitable antifreeze to 11 Multifunction Temperature the heating system See Section 5 3 page 11 12 Eco Economy Mode 13 Heating 14 Heating Symbol 15 Burner On And Actual Power 64 C H Temperature Pressure Gauges 27 10 OPERATING INSTRUCTIONS Boiler Ignition Supply unit with electricity A CN Boiler ignition For
39. ration while the other appliance remaining connected to the common venting system are not in operation 2 Seal any unused openings in the common venting system 3 Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition 4 Insofar as is practical close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building Turn on clothes dryers and any appliance not connected to the common venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers 5 Place in operation the appliance being inspected Follow the lighting instructions Adjust thermostat so appliance will operate continuously 6 Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use flame of a match or candle or smoke from a cigarette cigar or pipe 7 After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous conditions of use 8 Any
40. rn 5 HYDRONIC PIPING 14 6 COMBUSTION AIR AND VENT PIPING CATEGORY I CHIMNEY VENT 7 Common venting shall not be allowed Boiler and other certified appliances appliances can share same Boiler and venting installations shall be performed chimney vent Consult appropriate Vent Sizing Tables by a qualified service agent and in accordance with in National Fuel Gas Code for specific requirements of the appropriate manual Installing or venting boiler multiple appliance venting or other gas appliance with improper methods or 8 Boiler is only appliance connected to vent Type B vent materials may result in serious injury or death due pipe is recommended for vent connector to fire or to asphyxiation from poisonous gases such 9 Slope pipe up from boiler to chimney not less than 1 4 as carbon monoxide with is odorless and invisible per foot 21mm m 10 End of vent pipe must be flush with inside face of chimney flue Use sealed in thimble for chimney Do not connect boiler to any portion of mechanical AMA 1 draft system operating under positive pressure make piping rigid Use stovepipe wires to support pipe 6 1 Check Your Chimney from above Chimney must be clean right size properly constructed 12 Do not connect to fireplace flue and in GOOD CONDITION 13 Do not install damper on this boiler 1 Installation must conform to requirements of the authority having juris
41. sure W C 6 5 4 3 2 4 11 12 13 14 15 17 18 2 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 kW ALPG B NATURAL GAS Losses of load head of circulators 20 00 18 00 16 00 5 14 00 z 9 12 00 10 00 T 8 00 3 E 6 00 2 4 00 8 2 00 0 00 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 Water Flow A Boiler losses of head 1 2 3 Circulator speed 35 13 TROUBLE SHOOTING Diagnostics The boiler is equipped with an advanced self diagnosis system In case of a boiler fault the display will flash indicating the fault code There are faults that cause permanent shutdown marked with the letter A to restore operation just press the RESET button for 1 second or RESET if the boiler fails to start it is necessary to first eliminate the fault Other faults marked with the letter F cause temporary shutdowns that are automatically reset as soon as the value returns within the boiler s normal working range Table of faults List of faults Fault Cure code 9 Q o o h lt 0 5 mum 0 o W v c lt o Check the regular gas flow to the boiler and that the has been eliminated from the pipes Check the wiring of the electrode and that it is correctly positioned and free of any deposits Check the gas valve and replace it is necessary Ad
42. t gt c o F37 Incorrect system water pressure Check the sensor Check the wiring or replace the sensor Reconnect the external probe or disable the sliding temperature Probe damaged or wiring short circuit Probe disconnected after activating the External probe fault Sensor positioning Delivery sensor detached from the pipe Heating sensor fault Sensor damaged No system circulation Exchanger protection activation o 2 EX 5 5 o O ee pe j El m c Check correct heating sensor positioning and operation Replace the sensor Check the circulating pump Vent the system Check the correct positioning and operation of the DHW sensor See Fault F05 Check the wiring Fill the system Check the contact DHW sensor disconnected Sensor disconnected A48 Air signal protection activation Fault F05 for 150 seconds A41 A44 4 gt 5 D lt D 3 Modulation regulator fault Pressure too low Low water cutoff warning Low water cutoff damaaed z 5 Q Q 5 WIRING DIAGRAM 155 10 Z kOhm 18 138 Optional Outdoor Sensor kOhm 155 Optional Indirect Tank Sensor 370 Field Source LWCO 1 NIU Important Before connecting the room thermostat remove the jumper on terminal block Key 16 Modulating fan 155 Hot water tank temperature probe field sourced 32 Heating circu
43. tached from modulation make necessary repairs if leaks found regulator F on the gas valve 4 Follow OPERATING INSTRUCTIONS to initiate boiler 8 Verify maximum pressure has not changed operation See section 10 m 9 Replace protection cap D 5 Inspect combustion air and vent piping Verify pipe 10 To end TEST mode repeat activation sequence or wait is not leaking and terminations are unobstructed and 15 minutes vent gas discharge is not a nuisance or hazard 6 Verify operates 9 4 To Enter Test Mode Adjust Heating Power 7 Check control module operation Press CH buttons at the same time for 5 seconds e 3 way valve is in CH position and burner is forced at 100 Boiler automatically exits test mode after 15 minutes or to exit test mode manually press CH buttons together for 5 seconds e With Ch buttons you can adjust Max power from 0 to 100 8 Check field sourced limits low water cutoffs etc per manufacturer s instructions 9 5 Ignition Adjustment To adjust ignition switch boiler to TEST mode See Start up Procedure Press DHW buttons to increase or decrease power min 00 max 60 Press RESET button within 5 seconds and ignition remains set Exit TEST mode 24 9 START UP PROCEDURE 9 6 Check Combustion Figure 18 Test Ports Natural Gas 1 Measure input English unitsTurn off gas to all other Vent PT appliances Port e Activate some heating zones to dissipate heat e
44. tting the maximum value to allow system adjustment throughout its useful working range Boiler must be adjusted at time of installation by qualified service agent Adjustments can be made by user to improve comfort 29 Compensation curve and curve offset Press the button see item 6 on the control panel display for 5 seconds once to display the actual compensation curve which can be modified with the DHW buttons see items 1 and 2 on the control panel display Adjust the required curve from 1 to 10 according to the characteristic By setting the curve to 0 sliding temperature adjustment is disabled Compensation curve a Press the heating buttons see items 3 and 4 the control panel display to access parallel curve offset modifiable with the DHW buttons see items 1 and 2 on the control panel display Parallel curve shift ZN 10 OPERATING INSTRUCTIONS Press the button see item 6 on the control panel display for 5 seconds again to exit parallel curve adjustment mode If the room temperature is lower lower than the required value it is advisable to set a higher order curve and vice versa Proceed by increasing or decreasing in steps of one and check the result in the room Compensation curves OTC CURVES 10 BOILER FLOW TEMPERATURE F co C 4 1 1 1 7 1 68 62 56 50 44 38 32 26 20 OUTSIDE AIR TEMPERATURE Compensation curves OFF
45. way from exterior wall B Concentric side wall vent hood 7 Vent Pipe Termination Location A When venting through combustible walls combustible clearances must be considered ECR vent termination 5612601 is a certified direct vent termination for Catagory III venting providing both the outside vent termination and a double wall pipe for passing through a combustible wall up to 10 thick Vent terminations by other manufacturers may also be used as long as they are certified for catagory III venting B Ifthe 90 elbow is the termination fitting of choice 8 then the single wall pipe will be passing through the side wall For combustible walls a UL listed thimble shall be used where the single wall pipe passes through the wall 9 C For single wall pipe through non combustible walls the hole through the wall need only be large enough to maintain the pitch of the vent pipe and provide proper sealing A thimble is not required for single wall pipe passing through non combustible walls 17 D The venting system shall terminate at least 3 feet 0 9m above any forced air inlet located within 10 feet 3m The venting system shall terminate at least 4 feet 1 2m below 4 feet 1 2m horizontally from or 1 foot 300 mm above any door window or gravity air inlet into any building The bottom of the vent shall be located at least 12 inches 300mm above grade Termination of the vent shall be not less than 7 fe
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