Haier AB422ACERA Air Conditioner User Manual
Contents
1. FROM BUILDING 29 7 8 41 1 2 41 1 2 759 mm SUPPLY AIR 1055 mm 1055 mm FRONT VIEW CBU DING DISCHARGE SIDE INLET SIDE OPTIONS WARRANTY Units carry a 5 year warranty on the energy recovery cores 99 101 Sixty Minute Remote Timer and 2 year replacement parts warranty All units conform to CSA and UL standards DATE PROJECT MECHANICAL CONTRACTOR ERVs are not recommended for regions where the design temperature is below 25 F 4 C 511 McCormick Blvd London Ontario N5W 4C8 Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com ENERGY SYSTEMS INC Website www lifebreath com 12 TI 132 0105 Location for Mounting The HRV ERV must be located in a conditioned space where the surrounding air temperature does not fall below 60 F 16 C The unit must be mounted level horizontal The warranty will be void if these conditions are not met Typically the HRV ERV is positioned close to an outside wall or the roof to simplify the connections and keep the length of insulated ducting required for the fresh air intake to a minimum A minimum clearance of 36 inches 90 cm in front of the HRV ERV is recommended to service the ventilator The HRV ERV may be mounted on an equipment platform providing the drain hoses are clear and there is sufficient space to open the doors for servicing Install the drain pans in the bottom of the2. 18 Self Test of Defrost Systems 700 850 1200 18 Speed Selection and Controls 700 850 1200 19 Optional Remote Controls 700 850 1200 19 ControlAir 15 500 Only coe iet aede 20 Function And Control 500 Only 21 Mode of Operation for ControlAir 15 500 Only 22 Pitot Tube Air Flow Balancing 23 Service Maintenance 24 MOTOT eege ee 24 EC pU up ER TAS 24 ERV COE Lois efc 24 I 25 Ree EE TEE 25 Dut Work estt get ep tet 25 Damper Motor eio ie pe die aie eed 25 Troubleshooting your HRV ERV System 26 Wiring Diagrams 27 29 nuce ono eod enc teret 30 INTRODUCTION HRV Aluminum Core A Heat Recovery Ventilator HRV is designed to provide fresh air into a building while exhausting an equal amount of stale air During the winter months the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors During summer months when the indoor space is air conditioned the Heat Recovery Ventilator will help in cooling the incoming fresh air with the stale air that is being exhausted ERV Enthalpic Paper Core An Energy Recovery Ventilator ERV is designed to provide fresh air i
3. SPECIFICATIONS PERFORMANCE CORES AIRFLOWS Each Air Stream Modular 4 section patented aluminum heat recovery cores arranged 9 for high efficiency crossflow ventilation amp 282 600 MOTORS I f Two PSC 5 speed double shafted 120 3 15 Amps each 6 3 total SPEED nee on high speed HP 1 10 1625 RPM Watts total on High Speed 610 gt 190 400 4 b Re FILTERS f 5 Washable air filters in exhaust and supply air streams D 94 200 0 BLOWERS 5 Centrifugal type rated at 530 cfm 250 L s free air delivery Each z air stream has two centrifugal blowers driven by two PSC motors 25 1 50 2 75 3 100 4 125 5 C NN E CTION DUCT SIZE S EXTERNAL STATIC PRESSURE IN PASCALS in W C Four 14 x 8 356 mm x 200 mm TEMPERATURE EFFECTIVENESS MOUNTING Unit to be set on support brackets hung by threaded rod type 3 apparatus brackets and rods not included o CASE 5 20 gauge prepainted galvanized steel G60 for superior corrosion NM resistance Insulated with foil faced insulation duct liner where required to it prevent exterior condensation Drain connection One 1 2 12 mm O D u CONTROLS ControlAir 15 NOTE Exhaust Relative Humidity RH at 40 DEFROST Supply bypass damper routes indoor air to defrost cores Ge Ke E Ger WEIGHT 178 lbs 81 kg SHIPPING WEIGHT 203 lbs 92 kg AIRFEOWIN L S CEM DI M EN SI ONS 50 0 DCS inches mm FROM BUILDING
4. 235 282 329 378 425 500 600 700 800 900 AIRFLOW IN L s CFM DI M ENSI ONS 850 mm inches EXHAUST AIR EXHAUST AIR TO OUTSIDE FROM BUILDING CONTROLS NOTE d Service clearance is 760 mm 30 in SUPPLY AIR MOUNTING POINTS _ FROM OUTSIDE en wm 1188 mm 1055 mm DEFROST AIR 46 3 4 DRAIN CONNECTION DEVON 41 1 2 DD MODELS ONLY FRONT VIEW INTERIOR DUCT EXTERIOR DUCT CONNECTION SIDE CONNECTION SIDE OPTIONS 99 101 Sixty Minute Timer 99 130 Remote Wall Mount Dehumidistat Control 24 VAC only DATE PROJECT MECHANICAL CONTRACTOR All units conform to CSA and UL standards WARRANTY All units carr y a 15 year warranty on the heat recovery cores and a 2 year replacement parts warranty 511 McCormick Blvd London Ontario N5W 4C8 Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com ENERGY SYSTEMS INC Website www lifebreath com 1 111 0011 HEAT RECOVERY VENTILATORS HRVs SPECIFICATIONS CORES Modular 2 section patented aluminum heat recovery cores arranged for efficient cross flow ventilation MOTORS Two 3 speed single shafted 120 2 75 Amps each 5 5 total on high speed HP 1 10 1625 RPM Watts total on high Speed 648 FILTERS Washable air filters in exhaust and supply air streams BLOWERS Centrifugal type rated at 329 L s 700 CFM free air delive
5. FROM OUTSIDE EXHAUST AIR TO OUTSIDE j ck TU e NI Le NOTE 24 5 8 8 1 4 625 mm L ae 200 mm EXHAUST AIR SUPPLY AIR 1 FROM BUILDING 29 5 8 TO BUILDING 28 3 4 ir m 28 3 4 753 mm 730 mm 730 mm FRONT VIEW DISCHARGE SIDE INLET SIDE OPTIONS WARRANTY Units carry a 5 year warranty on the energy recovery cores 99 101 Sixty Minute Remote Timer and 2 year replacement parts warranty ERVs are not recommended for regions where the design units conform to CSA and UL standards temperature is below 25 F 4 C DATE 11 Ewe EN Blvd ondon Ontario N5W 4C8 PROJECT Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com MECHANICAL CONTRACTOR ENERGY SYSTEMS INC Website www lifebreath com TI 131 n 0105 wm CLEAN FRESH AIR SPECIFICATIONS LATENT RECOVERY MOISTURE TRANSFER CORES Modular 3 section latent recovery moisture transfer cores arranged for efficient cross flow ventilation MOTORS Two PSC 3 speed double shafted 120 VAC 4 Amps each 8 1 total on high speed HP 1 4 1625 RPM Watts total on high speed 972 FILTERS Washable air filters in exhaust and supply air streams BLOWERS Centrifugal type rated at 1200 cfm 566 L s free air delivery Each air stream has one double shafted motor driving a cent
6. LIF wem CLEAN FRESH AIR OPERATION AND INSTALLATION MANUAL For M S NOTE ALTHOUGH SOME MODELS ENAN C DIFFER IN OPERATION THE BASIC 500 DCS ControlAir 15 STEPS ARE SIMILAR 8 5 0 F D D D Analog Controls CAUTION Before installation careful consideration must be given to 70 0 F D D D how the system will operate if connected to any other piece Analog Controls of mechanical equipment i e a forced air furnace or air 120 F D DD handler operating at a higher static After installation the Analog Controls compatibility of the two pieces of equipment must be confirmed by measuring the airflow s of the Heat Energy Recovery Ventilator HRV ERV by using the balancing procedure in this manual 5 0 0 E RV ControlAir 15 It is always important to assess how the operation of any HRV ERV may interact with vented combustion equipment 70 F RV Analog Controls ie Gas Furnaces Oil Furnaces Wood Stoves etc 120 RV NEVER install an HRV ERV in a situation where its normal Analog Controls operation lack of operation or partial failure may result in the backdrafting or improper functioning of vented combustion equipment TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION Installing Contractor Telephone Contact Serial Number Installation Date ISO et LEAVE FOR HOMEOWNER 9001 S p KI N NOTE Due to ongoing research and product development specifications REGIST
7. MOUNTING POINTS NOTE Service clearance is 760 mm 30 in SUPPLY AIR 1 1 1 FROMOUTSIDE T nm 717 mm i i 717 mm DRAIN CONNECTION 49 SUPPLY AIR 28 1 4 28 1 4 DEFROST FRONT VIEW IDEE INTERIOR DUCT EXTERIOR DUCT CONNECTION SIDE CONNECTION SIDE OPTIONS 99 104 Digital Electronic Timer 20 40 60 min 3 wire 99 105 Programmable Ventilation Control All units conform to CSA and UL standards includes Programmable Time Clock Dehumidistat and Air Sentry WAR RANTY 99 109 Air Sentry Air Quality Monitor designed to accept Units carry a 15 year warranty on the heat recovery core and remotely mounted Control Pad 2 year replacement parts warranty 99 250 Ventilation Dehumidistat Dehumidistat designed to accept remotely mounted Control Pad DATE 511 McCormick Blvd PROJECT Fx 519 457 1676 MECHANICAL CONTRACTOR ENERGY SYSTEMS INC Website www liebreathconr 6 TI 110 NE 0011 HEAT RECOVERY VENTILATORS HRVs SPECIFICATIONS CORES Modular 6 section patented aluminum heat recovery cores arranged for high efficiency crossflow ventilation MOTORS Two PSC 3 speed double shafted 120 VAC 3 95 Amps each 7 9 total on high speed HP 1 4 1625 RPM Watts total on High Speed 848 FILTERS Washable air filters in exhaust and supply air streams BLOWERS Centrifugal type rated at 950 cfm 448 L s free air delivery Each
8. WV GC Lane LU sora d 2 Y Y J3IIHM W Vu V X jONVHO VU Y LJ d Y S3LIHM V W Y Y UW 3IIHM WU puojaq AV Ave quvog nn pud HONN AJ H NOWINOO db YU Sm 09 id li Y a lt uU VW GIE WW 2m HOSN3S 3un1vH3dWa3l di YV 30HM W 31HM YYYY Y 44O NO m JLIHM 1808488 Y Xovi8 BEI m m LAN FONVHO OVA OLL SS YSWHOS 5 1 AlddNS z HOLVOIQNI 35NVHO SCH HOLIMS ue X20 1831NI 18 uood 2000 801 1 ane ae 1 SLINN S SE TALS 002 22 lt SLINN 38 a8 27415 002 moo A 2 EE CH R S Es ee OE Xov NO j1snvexa ama 3IIHM V 0021 098 002 ALIHM Uu S vg jJepoW 104 xovig ege
9. MOTORS 329 700 55 E Two PSC 3 speed single shafted 120 VAC 2 75 Amps each 3 282 600 HIGH SPEED Vno MED gt 5 5 total on high speed HP 1 10 1625 RPM Watts total 235 500 MED SPEED amp on high speed 648 190 400 LOW SPEED a FILTERS unm Washable air filters in exhaust and supply air streams SE 5 42 100 BLOWERS Centrifugal type rated at 700 329 L s free air delivery 25 1 50 2 75 3 100 4 125 5 150 6 175 7 Each air stream has one single shafted motor driving EXTERNAL STATIC PRESSURE IN PASCALS IN W C centrifugal blower CONNECTION DUCT SIZES Four 14 x 8 356 mm x 200 mm MOUNTING Unit to be set on support brackets hung by threaded rod type apparatus brackets and rods not provided CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation where required to prevent exterior condensation CONTROLS Illuminated power switch 3 speed blower control low voltage 190 235 25 Be 24 VAC terminals for connection of remote controls 300 00 500 600 700 AIRFLOW IN L s WEIGHT 142 lbs 64 4 kg SHIPPING WEIGHT 167 lbs 75 8 kg TEMPERATURE EFFECTIVENESS E 60 EFFECTIVENESS Ed NOTE Exhaust Relative Humidity RH at 40 DIMENSIONS 700ERV inches mm ENTHALPIC CORE CONTROLS MOUNTING POINTS SUPPLY AIR
10. 5 on 300 wire max Touch pad operation 20 40 60 minute status lights Compact wall mount unit E Mounts in 2x4 box e Shown with decora cover plate 99 107W PART NO 99 104 mE Connects to RED GREEN YELLOW terminals See individual control instructions for more details 20 0011 FUNCTION amp CONTROL model 500 only Operating the ControlAir 15 Plugging in the HRV ERV energizes the unit self test function will be performed every time the HRV ERV is energized refer to Self Test for more details After the self test has completed successfully the HRV ERV will default to Speed 1 This is the factory default setting Follow the instructions found on the HRV ERV door to select desired mode and speed or refer to the instructions found on the following page Control Module EB Control Pad RED ORG 1010 ControlAir 15 Exploded view Removing and relocating the Control Pad The Control Pad can be removed and installed in a remote location 100 wire length max The Control Pad can be installed in a 2x4 box with a Decora type cover plate or can be installed in the optional Ventilation Dehumidistat or Air Sentry When the Control Pad is installed in a remote location all optional controls will still be wired to the Control Module on the HRV ERV When remotel
11. CONNECTOR wz TO DRAIN Forming the P Trap Outside Weatherhoods The weatherhoods must have built in bird screen with 1 4 in 63 5 mm minimum mesh to prevent birds and rodents from entering into the ductwork Do not use smaller mesh as it will be very susceptible to plugging up Gravity dampers at the vents must not be used as they will restrict air flow and often seize up The preferred location of the outside weatherhoods is no less than 10 ft 3 m apart from each other atleast 18 in 46 cm above snow line or ground level away from sources of contaminants such as automobile exhaust fumes gas meters garbage cans containers etc not exposed to prevailing winds whenever reasonable possible The outside perimeter of the weatherhood must be caulked to prevent leakage into the building The design and size of the weatherhoods or louvres chosen by the installer must allow for adequate free area Water and debris penetration of the system is minimized when the airflow does not exceed 1000 FPM 5 08 m s free area velocity Ducting from the Weatherhoods Galvanized sheet metal ducting with sufficient cross section with an integral single piece vapour barrier should be used to connect the HRV ERV to the weatherhoods ducting must meet UL Class 1 requirements A minimum R value of insulation should be equal to 4 RSI 0 75 A good bead of high quality caulking preferably acousti cal sealant and
12. H channel support then place the left side the right side and finally the top flange into place in the same fashion Once all four corners are in place push the core evenly into the cabinet until it reaches the back Be sure the drip edges are overlapping the drip trays Note the core will protrude slightly out from the front of the cabinet this is so the access door when closed ensures a tight fit FRONT VIEW Models 700 1200 G DRIP EDGE Ci DRAIN PANS not on all models Model 850 LE DOU RE DRIP EDGE DRAIN PANS not on all models Model 500 SINGLE DRIP EDGE CORE N E DRAIN LEFT DRIP PAN RIGHT DRIP EDGE EDGE Note location and arrangement of cores and filters when removing 24 FILTERS Open front service door to access the filters located in both supply and exhaust air streams Note to remove and install filters it may be easier to first remove the core s See CORE The filters are designed to stop large particles from entering in the core The filters are fastened in place by a metal spring rod To remove filters from core s simply pull the rod from one end outward until free from core lip and remove Only use warm water with a mild detergent to wash the filters Do not use harsh chemicals The time between filter service will depend on the application the HRV ERV has been installed in It can be as often as one two months or at the very least cleaned every s
13. PVC Support Straps and slope of drain lines Vibration Isolators Supplied by others p Supplied by others Unit Suspended using Polyester reinforced PVC support straps 17 Electrical Connections It is recommended that a licensed electrician make all electrical connections It is very important that the unit be properly grounded It is recommended that a separate 15 amp 120 volt circuit be used WARNING In order to prevent electric shock when cleaning or servicing the HRV ERV it is extremely important to confirm the polarity of the power line that is switched by the safety disconnect switch whose control arm is located on the outside of the electrical control box area The hot line black is the proper line to be switched To confirm the proper polarity use a voltmeter or test lamp to make sure there is no power after the switch when the door is open Check between that point and ground on the cabinet This must be done as occasionally some buildings are improperly wired Always make sure the HRV ERY is properly grounded Power Supply Neut Power Terminal Block Electrical Connection FAN DEFROST Models 700FD 850FD 1200FD Fan defrost HRV s are equipped with an electronically controlled fan defrost system to remove frost that collects on the warm air side of the aluminum heat transfer surfaces of the heat exchanger core When the outside air temperature d
14. floor of the crawl space ducts from the washroom should be sized to remove moist air as effectively as possible use of a bathroom fan for short periods will remove additional moisture on humid days as the seasons change some condensation may appear but the homes air quality will remain high with some HRV ERV use increase speed of the HRV ERV Humidity Levels are too Low dehumidistat control set too low blower speed of HRV ERV is too high lifestyle of occupants HRV ERV air flows may be improperly balanced set dehumidistat higher decrease HRV ERV blower speed humidity may have to be added through the use of humidifiers have a contractor balance HRV ERV airflows HRV ERV and or Ducts Frosting up HRV ERV air flows are improperly balanced malfunction of the HRV ERV defrost system Note minimal frost build up is expected on cores before unit initiates defrost cycle functions have HVAC contractor balance the HRV ERV using the self test feature at the Base Module press the fan control symbol the damper defrost unit should cycle its full travel when working properly Condensation or Ice Build Up in Insulated Duct to the Outside incomplete vapour barrier around insulated duct hole or tear in outer duct covering tape and seal all joints tape any holes or tears made in the outer duct covering ensure that the vapour barrier is completely sealed Water in the bottom
15. into the home means less work for the air conditioner and energy savings for you During the winter an ERV recovers some humidity from the exhaust air reducing the need for humidification if the required ventilation rate would make the home too dry What s the difference between this type of core and a rotary type Here s a list of characteristics of the fixed plate core 1 No rotating parts so maintenance is easy and the unit lasts a long time 2 Itis very flexible in terms of installation 3 The core can easily be changed 4 Because the supply and exhaust air streams are completely separate there is very little cross leakage of any dust or germs Can the core become clogged with dust Because the surface of the core is a turbulent flow area dust sticks to it easily however because the inside of the element is a laminar flow area virtually no dust sticks to it What is the maintenance About once a year you should use a vacuum cleaner to remove the dust from the core s surface DO NOT WASH WITH WATER Is an air filter needed To prevent clogging of the core an air filter should always be installed on the supply and exhaust sides of the core How much ventilation do need During seasons when your windows and doors are closed the ERV should operate continuously when the dwelling is occupied and either continuously or intermittently when not occupied For most installations the ERV will normally be set
16. mounted PART NO 99 109 PART NO 99 105 Connects to RED GREEN and YELLOW terminals Connects to RED ORANGE GREEN and YELLOW terminals NOTE This device is NOT compatible with the PVC NOTE This device is NOT compatible with the Air Sentry d NEW VENTILATION DEHUMIDISTAT LOCATION Central location in house ControlAir 15 E gc ee Dehumidistat activates high speed d men WEIER Control Module All controls wire to exceeds setting S matching colour on e Knockout designed to accept Control E the Control Module Pad when remotely mounted giving full d E IP HRV ERV functionality amp control from Control Pad SE removed SE eg remote location 4 et in a remote location 98 ex Control Pad mounts ES in a 2 x 4 box or can PART NO 99 250 2 Si be mounted in the Connects to BLACK RED GREEN and YELLOW terminals optional Ventilation Dehumidistat or Air Sentry Replaces 99 116 DVC amp 99 230 VRD A 2 Only compatible with ControlAir 15 electronics 2 P e Full fan speed control Three Modes of Operation Standby ON 20 40 OFF 3 Recirculation DIGITAL ELECTRONIC TIMER DET on compatible HRV ERVs LOCATION Bathrooms amp kitchen e Connect up to 8 on 300 91 m wire max If a PVC or Air Sentry is used connect up to
17. of the HRV ERV drain pans plugged improper connection of HRV ERVs drain lines HRV ERV is not level drain lines are obstructed HRV ERV heat exchange core is not properly installed 26 ensure O Ring on drain nozzle sits properly look for kinks in line check water drain connections make sure water drains properly from pan WIRING DIAGRAM 500 DAMPER DEFROST MICRO PROCESSOR BOARD TO DISABLE RECIRCULATION Note All control connections are labeled by colour REMOVE SEL1 Connect to corresponding FOR R 2000 colour with low voltage wire 20 gauge minimum A dry contact closure between red amp black will initiate high speed override DRY CONTACT CONTROLAIR 15 WARNING SEE 120V 750 ma HEH POWER SUPPLY MAX FUSE CORD FAN MOTOR DETAILS CAPACITOR NEUTRAL GROUND FAN MOTOR SEE MOTOR DETAIL CAPACITOR HIGH VOLTAGE Note 12V LOW VOLTAGE If any of the original wire as supplied with FIELD INSTALLED the unit must be replaced 12V LOW VOLTAGE use only TEW certified wire IMPORTANT Control Low Voltage is 12VAC DO NOT CONNECT EXTERNAL POWER SOURCES TO UNIT FAN MOTOR DEFROST DETAILS AUTO TRANSFORMER DETAIL PLUG IN CONNECTOR m transformer WIRE CONNECTOR AUTO ITE TRANSFORMER Sf YELLOW nU BE Sy ISO DELT WHITE DAMPER MOTOR 43 SPARE BLACK WHITE 24VAC WIRING SPARE PIN1 BLUE PIN4 R
18. should be used to put oil inside the tubes A couple of drops of oil once a year will do DO NOT OVER OIL CORE qRvonly The heat exchange core is accessible through the front service door Special care and attention should be given to this component as the edges may be sharp and the core itself susceptible to damage if dropped When removing the core the location it is removed from should be noted The core is removed by carefully pulling the core outward from the unit sliding it evenly along its H channel supports found in each corner of the core Note the core may have some resistance when sliding out Avoid tilting the core as this will result in its edges catching the H channel and temporarily preventing its removal In most cases washing the core in a mild detergent and warm water will be all that is needed to completely clean them Do not use harsh chemicals as this may cause corrosion in the HRV The time between core service will depend on the application the HRV has been installed in It can be as often as one two months or at the very least cleaned every six months When reinstalling the core you must note foam location and drip edge location for proper core placement See diagram below ERV CORE ERV only Remove core and vacuum or use low pressurized air to clean core Do not wash or submerse in water With the core in its proper position place the bottom flange approximately 1 4 into its
19. the stale air Balancing dampers would be located in both the HRV ERV supply and exhaust ducts between the return air plenum and the HRV ERV NOTE At no time should the air handler T E S P on the return duct exceed that of the HRV ERV The Integrated HVAC System FRESH AIR SUPPLY STALE AIR EXHAUST Figure A ECONOMIZER ROOFTOP UNIT SUPPLY DUCT RETURN AIR DUCT or pe BREATHER T HRV ERV UNIT HRV ERV FRESH A R AIR SUPPLY STALE AIR A R EXHAUST TO HRV ERV Example only Duct connections not typical ECONOMIZER ROOFTOP UNIT ROOF DECK FRESH AIR SUPPLY j STALE AIR EXHAUST Figure B 412 BREATHER CEILING RETURN AIR PLENUM SUPPLY DUCTWORK HRV ERV UNIT HRV ERV FRESH AIR SURELY STALE AIR EXHAUST Example only Duct connections not typical 16 Various Installation Types NOTE Wheninstalling your HRV ERV flexible duct connectors should Saddle Installation be installed between the HRV ERV and the galvanized duct work Vibration Isolators dr hi Threaded Supplied by others rod and U channel Supplied by others Hang unit with suspended rods and U channel members Curb Mounted Curb is wood or metal Supplied by others May be anchored to floor leaving space for drain connections Mount unit on wooden or metal curb assembly Unit must be raised Suspended an adequate height for installation
20. to operate continuously on low speed with the option of going to high speed as the need arises For example if you are entertaining and there is a large number of people present some may be smoking the unit should be switched to high speed Your ERV may be equipped with automatic or manual switches but all ERVs will have a manual speed control override n e LIF wea CLEAN FRESH AIR Select the correct HRV ERV to match your climate Severe Conditions Moderate Conditions Pacific Conditions Extreme Area Arid Zone High Humidity Dry Climate Moderate Conditions Severe Conditions HRV recommended HRV required Arid Zone Dry Climate Pacific Conditions HRV recommended HRV recommended ERV optional Extreme Area High Humidity ERV recommended ERV not recommended where temperatures fall below 25 F 4 C for more than five days ERV s are recommended in regions where high outdoor humidity is cause for operating air conditioning dehumidification more frequently than heating system Selecting the Correct Size HRV ERV Commercial and Institutional Requirements For outdoor air requirements ASHRAE has produced the Ventilation Standard 62 1989 that is used to determine acceptable ventilation rates This standard is referenced directly or used as Good Engineering Practice in most Code documents or design criteria Small restaurants Donut Shops and Fast food stores Seats 40
21. 2 400 500 600 AIRFLOW IN L s CFM 329 700 EXHAUST AIR VOR ou DIMENSIONS 700 mm inches CONTROLS MOUNTING POINTS TO OUTSIDE i g 165mm 356 mm 612 ___14 _____ FD MODEL ONLY 625 mm NOTE mm Service clearance 24 5 8 1614 is 760 mm 30 in from front access doors D 2 ah e 8 EXHAUST AIR SUPPLY AIR FROM BUILDING zy i TO BUILDING 730 mm m 730 mm DRAIN CONNECTION 753 mm 29 5 8 28 3 4 28 3 4 FRONT VIEW DISCHARGE SIDE INLET SIDE OPTIONS All units conform to CSA and UL standards 99 101 Sixty Minute Timer 99 130 Remote Wall Mount Dehumidistat Control 24 VAC only DATE PROJECT MECHANICAL CONTRACTOR WARRANTY All units carry 15 year warranty on the heat recovery cores and a 2 year replacement parts warranty 511 McCormick Blvd London Ontario N5W 4C8 Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com ENERGY SYSTEMS INC Website www lifebreath com TI 103 0011 LIFEZREATH Model 200FD DD HEAT RECOVERY VENTILATORS HRVs SPECIFICATIONS PERFORMANCE CORES AIRFLOWS Each Air Stream Modular 3 section patented aluminum heat recovery cores arranged for efficient cross flow ventilation 613 1300 MOTORS E 566 1200 a gen Two PSC speed d
22. ED PIN1 GREEN DAMPER DEFROST PIN 2 YELLOW PIN 5 WHITE PIN 2 GREEN PIN3 BROWN PIN 6 BLACK TI 126 NE 0102 27 2000 28 101 11 AND LU v A a CONS Nr cl A INO SLINN gt gt AINO SLINN gt gt 37415 002 55 55 37415 007 9 o vx o 1snvuxa 3n18 JLIHM c c yovga MAU Movi 0021 098 002 43848 5 104 1 xovg xovg er nl x aum ded 4 BEL MOTI3A 5101009 AU ama ie i ajAig enBojeuy amg o Y E G3 ama ocu 5 s ewe BHulyoUMs 1 TIWNIINH3LL 5 5 0 mi ri lem e D 0018 C L Hamm NMOHS x LEE 50 i 1SOUd3d NVA HOLIMS R eb domno amp NMOHS amp
23. ERED WA 000 7 ARAN ratings and dimensions are subject to change without notice TI 72C NE 0105 Table of Contents INtrod ction t 2 ERV Questions and Answers 3 Select Correct HRV ERV to Match Climate 4 Select the Correct Size HRV ERV 5 Technical Data Model 500DCS 6 Technical Data Model 850FD DD 7 Technical Data Model 700FD DD 8 Technical Data Model 1200FD DD 9 Technical Data Model 500ERV 10 Technical Data Model 700ERV 11 Technical Data Model 1200ERV 12 Location for Mounting 13 The Ductwork System 13 Outside Weatherhoods see 14 Ducting from Weatherhoods 14 Warmside Ducting General 14 Stale Air Return System 14 Fresh Air OUP IY coa ot notus tuus didi t 15 The Integrated HVAC System 15 Various Installation Types 17 Electrical Connections 18 Fan Defrost 700 850 1200 tete 18 Damper Defrost 700 850 1200
24. Employees Total 45 ASHRAE requirement Ventilation required Bar or Tavern Seats 50 Employees Total 57 ASHRAE requirement Ventilation required 20 cfm 10L s per person 45 x 20 900 cfm 450 L s 30 cfm 15L s per person 57 x 30 2 1710 cfm 855 L s Classroom and School Portables Seats 29 Teacher 1 Total 30 ASHRAE requirement Ventilation required Beauty Salon Customers 12 Employees 6 Total 18 ASHRAE requirement Ventilation required Outdoor Temp C F 15 cfm 7 5L s per person 30 x 15 450 cfm 255 L s 25 cfm 12 5L s per person 18x25 z 450 cfm 255 L s Bank Customers Staff 9 Total 34 ASHRAE requirement Ventilation required Bingo Hall Customers Staff 20 Total 200 ASHRAE requirement Ventilation required Print Shop Duplicating Square footage of shop ASHRAE requirement Ventilation required Swimming Pools 20 cfm 10L s per person 34 x 20 680 cfm 320 L s 30 cfm 15L s per person 200 x 30 6000 cfm 3000 L s 2000 square ft m 0 5 cfm ft2 2 5L s m2 per person 2000 x 0 5 1000 cfm 500 L s Refer to Pool Models Installation Manuals MAKE UP HEAT REQUIREMENT at 1200 CFM 566L s Nominal kW Req for 20 C 68 F Air Delivery Nominal kW Req for 25 C 77 F Air Delivery Nominal kW for 30 C 86 F Air Delivery LIFEBREATIT Model 500DCS HEAT RECOVERY VENTILATORS HRVs
25. HRV ERV so the drain not on all models connections protrude through the holes provided Use drain hoses with hose clamps to connect the drain pan outlets to a floor drain or standpipe Make sure the drain line slopes down to the outlet If this is not possible a condensate pump will be required for positive removal of the water Protect the drain line from freezing The Ductwork System A properly designed ducting system will allow the HRV ERV to operate at its maximum efficiency Air flow will be restricted by undersized ducting use of too many elbows tees bends etc Always try to keep duct runs as short and straight as possible NOTE Fully insulated ducting with an integral vapour barrier must be used on all runs passing through unheated areas in order to avoid condensation problems and energy losses from the air steams All joints must be airtight sealed and impervious to moisture See specification sheets for each unit for exact duct sizes and location To minimize pressure drop and noise galvanized metal ducts properly sized are recommended Keep ducting as short as possible and use a minimum of elbows and tees Connecting sections and shorter runs may be flexible ducting one size larger than the metal equivalent Use flexible duct connectors at the HRV ERV to avoid noise transmission All duct joints must be secured with screws rivets or duct sealant and sealed with aluminum duct tape to prevent leakage TEE
26. IFEBREATH COVERED BY THIS WARRANTY NUTECH S COMPLETE LIABILITY AND THE OWNER S EXCLUSIVE REMEDY BEING LIMITED TO REPAIR OR REPLACEMENT ON THE TERMS STATED HEREIN ANY IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTY OF MERCHANTABILITY AND OF FITNESS FOR ANY PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED NO PERSON IS AUTHORIZED TO CHANGE THE WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGES ARE MADE IN WRITING AND SIGNED BY AN OFFICER OF NUTECHS MODEL NO UNIT SERIAL INSTALLED BY DATE pir rd rr rrr f fed fed et 30 TI 38HRV ERV 511 McCormick Blvd London Ontario N5W 4C8 Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com ENERGY SYSTEMS INC Website www lifebreath com
27. YY 6 6 Com eger d DULIAN dau ama 51011002 ama p e A1s gue 0018 Sls lo 6 Q Sm UA 91OUJ9H lt Or _ NMOUG s NINH HOLIMS I1SOudad 33O NO m U UU HOLOW WV M d UU JLAM Y y ums puojeg 4 ATI Ave SLIHM V ATION WN omo yy IWHAL OO 1dexste VNIINH3 L RD woo NOWAOO dau V e MD Woo E Y MOTIJA Av 3H Uova YY VJ 31IHM ovia 4 iis 34 dau Deen OVA OLL E Mow En AM A ddfiS H3MOd EI a HOLIMS Se HOLVOION 39NVHO X90 H3INI NS Ba DOO0 1SOH33Qq 29 ear Limited Warranty 15 Year Aluminum Core Warra 5 Year Paper Core Warranty NUTECH ENERGY SYSTEMS INC NUTECH warrants to the purchaser of the Commercial LIFEBREATH model and accessories referred to below to be free from manufacturing defects This Warranty is personal to NUTECH and is in effect from the date of the original purchase for a period of two years save and except that a 15 YEAR WARRANTY is given to the LIFEBREATH Aluminum core amp a 5 YEAR WARRANTY is given to the LIFEBREATH Paper core should they develop a condensation leak or become damaged during normal use Damage resulting from all other causes including but not l
28. ailable in 4 5 6 and 8 100 125 150 and 200 mm models AIR FLOW _ SUPPLY AIR FLOW EXHAUST TECHGRILLE optional schematic 15 The Integrated HVAC System Figure A and B The HRV ERV has become an integral component of the HVAC system Figure A shows an HRV ERV unit providing fresh air directly to the return air plenum of a rooftop heat cool unit In the balanced airflow system the HRV ERV exhaust removes stale room air eg from lunch room storage copy area and returns to the space an equal amount of fresh outdoor air making the use of an economizer obsolete in conjunction with an HRV ERV Many buildings have ceiling return air plenum as in Figure B Fresh air from the HRV ERV can be introduced directly into the ceiling space but this should occur near the air handler s intake By operating the HRV ERV on a 24 hour 7 day battery backed timer the unit can be set to operate only when occupancy or indoor conditions require the air exchange In installations where it is satisfactory to provide general exhaust from the space the air to be exhausted may be taken directly from the return air plenum to the HRV ERV as it is drawn back to the air handler Fresh air supplied by the HRV ERV is then introduced directly into the return air plenum but at a location closer to the air handler The air handler would have a constant running blower to effectively distribute the fresh air and remove
29. air stream has one double shafted motor driving two centrifugal blowers CONNECTION DUCT SIZES Three 20 x 8 508 mm x 200 mm Stale air intake 26 x 8 660 mm x 200 mm Model 850DD additional 20 X 8 defrost port MOUNTING Unit to be set on support brackets hung by threaded rod type apparatus brackets and rods not provided CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation where required to prevent exterior condensation Drain connections Two 1 2 12 mm O D CONTROLS Illuminated power switch 3 speed blower control low voltage 24 VAC terminals for connection of remote controls and defrost light indicating automatic operation DEFROST CONTROLS Model 850FD Interrupts supply air while exhaust air defrosts core Model 850DD Supply bypass routes indoor air to defrost core WEIGHT 255 lbs 116kg SHIPPING WEIGHT 280 lbs 127 kg Model 850FD DD 475 1000 425 900 378 800 329 700 282 600 235 500 190 400 143 300 94 200 42 AIRFLOW L s CFM 100 EFFECTIVENESS PERFORMANCE AIRFLOWS Each Air Stream 7 9 HIGH 7 0 MED 6 6 LOW TOTAL CURRENT DRAW AMPS 120 25 1 50 2 75 3 100 4 125 5 150 6 175 7 EXTERNAL STATIC PRESSURE IN PASCALS in W C TEMPERATURE EFFECTIVENESS a el NOTE Exhaust Relative Humidity
30. ay not defrost properly Failure to balance HRV ERV properly may void warranty Excessive positive pressure may drive moist indoor air into the external walls of the building where it may condense in cold weather and degrade structural components May also cause key holes to freeze up Excessive negative pressure may have several undesirable effects In some geographic locations soil gases such as methane and radon gas may be drawn into the home through basement ground contact areas Excessive negative pressure may also cause the backdrafting of vented combustion equipment Read the Application Warning on the front of this manual Prior to balancing ensure that 1 All sealing of the ductwork system has been completed 2 All of HRV ERV s components in place and functioning properly 3 Balancing dampers are fully open 4 Unit is on HIGH speed 5 Air flows in branch lines to specific areas of the house should be adjusted first prior to balancing the unit A smoke pencil used at the grilles is a good indicator of each branch line s relative air flow 6 After taking readings of both the stale air to the HRV ERV duct and fresh air to the house duct the duct with the lower CFM L s velocity reading should be left alone while the duct with the higher reading should be dampered back to match the lower reading 7 Return unit to appropriate fan speed for normal operation BALANCING PROCEDURE The following is a
31. ch for 2 seconds Release the button when the desired mode of operation is reached Modes of Operation LED Indication OFF No LED s illuminated HRV ERV is off no controls will initiate operation Standby On Steady Green LED and Yellow LED to indicate speed HRV ERV will run at speed selected in ventilation mode Standby mode is indicated by no speed indicator illuminated Optional remote controls will override standby or selected speed into high speed 20 On 40 Off Flashing Green LED and Yellow LED to indicate speed HRV ERV will operate in ventilation mode at speed selected for 20 minutes and OFF for 40 minutes To select speed Momentarily press fan selection button and release HRV ERV will move into next speed OFF is indicated by no yellow LED illuminated Speed 1 is the first yellow LED Speed five is indicated by a flashing speed 4 LED Automatic Defrost During cold outdoor conditions the HRV ERV will occasionally go into an automatic defrost function which will prevent ice from forming on the core Defrost is indicated by a flashing Red LED indicator 22 PITOT TUBE AIR FLOW BALANCING It is necessary to have balanced air flows in an HRV ERV The volume of air brought in from the outside must equal the volume of air exhausted by the unit If the air flows are not properly balanced then The HRV ERV may not operate at its maximum efficiency negative or positive air pressure may occur in the house The unit m
32. defrosted when the supply air port is automatically blocked off and the warm air surrounding the HRV ERV is drawn in through the defrost port The mode indicator will flash RED during the defrost cycle This dramatic advance makes more energy available for recovery as the unit spends less time in defrost mode By optimizing the defrost cycle the HRV ERV combines money saving performance with a well designed and reliable control system Glossary DEFROST MODE to ensure reliable operation during cold weather the HRV ERV will automatically cycle through its defrost mode as needed not on all models DEHUMIDISTAT a control device that senses the amount of moisture in the air and will activate high speed fan operation when the air moisture level exceeds the control setting The optimum air moisture level or relative humidity Rh in the typical home is in the range of 30 to 4096 Rh RESET whenever resetting of the HRV ERV is required simply disconnect power for 30 seconds STANDBY MODE the HRV ERV is energized and waiting for fan operation to be initiated by a remote device or manual override THERMISTOR the HRV ERV s temperature sensor which measures electrical resistance in a known manner as outdoor temperatures fluctuate To select mode of operation for ControlAir 5 Model 500 Only Press and hold the fan selection button on the Control Pad After 5 seconds the control will begin to cycle each mode holding ea
33. e Controls OQ QOO RED BLACK ORANGE Sos CIR s DEHUMIDISTAT VENTILATION CONTROL COMMANDE DE VENTILATION D SHUMIDISTAT 86 r 30 c 70 g 080 60 60 MINUTE CRANK TIMER DEHUMIDISTAT DEHUMIDISTAT VENTILATION CONTROL DVC PART NO 99 116 Turns ERV ON OFF Dehumidistat increases ventilation when required PART NO 99 101 Provides high speed ventilation for 60 minutes PART NO 99 130W Provides high speed ventilation when humidity level exceeds setting This style of remote switching began approximately July 1997 19 ControlAir 15 OPTIONAL REM OTE CONTROLS Model 500 Only PROGRAMMABLE VENTILATION CONTROLLER PVC NEW AIR SENTRY AIR QUALITY SENSOR LOCATION Hallway kitchen office amp work place connect 1 unit only Advanced digital remote Digital dehumidistat Full fan speed control AIR SENTRY Air Quality Sensor built in Recirculation mode on compatible HRV ERVs 7 day 24 hour programmable timer Digital display and status lights 100 30 m maximum wire length LOCATION Kitchen basement work place connect 1 unit only Digital Air Quality Monitor e Status light indicates fan speed Increases ventilation to remove odours and contaminants Among gases detected are cigarette smoke and formaldehyde 100 30 m maximum wire length Knockout designed to accept Control Pad when remotely
34. e clearance is 30 in 760 mm EXHAUST AIR ENTHALPIC ALUMINUMCORE FROM BUILDING 5 7 8 150 13 8 35 min MX m E E SUPPLY AIR FROM OUTSIDE T m za DEFROST DRAIN CONNECTION SO BUTHDING mm 717 mm FRONT VIEW INTERIOR DUCT EXTERIOR DUCT CONNECTION SIDE CONNECTION SIDE OPTIONS All units conform to CSA and UL standards 99 104 Digital Electronic Timer 20 40 60 min 3 wire 99 105 Programmable Ventilation Control includes Programmable Time Clock Dehumidistat and Air Sentry 99 109 Air Sentry Air Quality Monitor designed to accept remotely mounted Control Pad DATE PROJECT MECHANICAL CONTRACTOR WARRANTY Units carry a 5 year warranty on the energy recovery cores a 15 year warranty on aluminum cores and a 2 year replacement parts warranty ERVs not recommended for regions where the design temperature is below 25 F 4 C Ph 519 457 1904 Fx 519 457 1676 10 511 McCormick Blvd London Ontario N5W 4C8 Email nutech lifebreath com ENERGY SYSTEMS INC Website www lifebreath com TI 130 0105 LIFEBREATH Model 700ERV CLEAN FRESH AIR SPECIFICATIONS PERFORMANCE AIRFLOWS Each Air Stream LATENT RECOVERY MOISTURE TRANSFER CORES Modular 2 section enthalpic moisture transfer cores _ 428 900 8 arranged for efficient cross flow ventilation 2 378 800
35. emperature extremely cold install ceiling mounted diffuser or grilles so as not to directly spill the supply air on the occupant eg over a sofa turn down the HRV ERV supply speed A small duct heater 1kw could be used to temper the supply air placement of furniture or closed doors is restricting the movement of air in the home if supply air is ducted into furnace return the furnace fan may need to run continuously to distribute ventilation air comfortably Dehumidistat is not Operating improper low voltage connection external low voltage is shortened out by a staple or nail check dehumidistat setting it may be on OFF check that the correct terminals have been used check external wiring for a short set the dehumidistat at the desired setting Humidity Levels are too High Condensation is appearing on the windows dehumidistat is set too high HRV ERV is undersized to handle a hot tub indoor pool etc lifestyle of the occupants moisture coming into the home from an unvented or unheated crawl space moisture is remaining in the washroom and kitchen areas condensation seems to form in the spring and fall HRV ERV is set at too low a speed set dehumidistat lower cover pools hot tubs when they are not in use avoid hanging clothes to dry storing wood and venting clothes dryer inside Heating wood may have to be moved outside vent crawl space and place a vapour barrier on the
36. handler will exceed 110 15 W C A damper located just prior to the HRV ERV is required to balance the stale air exhausted with the fresh air supply entering the building Return air suction points should be located on the opposite side of the room from the fresh air inlet The inlets may be located in the ceiling or high on the walls and fitted with inlet grilles Many commercial activities produce air contaminants in the form of dusts fumes mists vapours and gases Contaminants should be controlled at the source so that they are not dispersed through the building nor allowed to increase to toxic concentration levels The ventilator allows for economical operation of the HVAC system while effectively removing contaminants from the space In designing the exhaust portion of the system the exhaust grilles are placed so as to remove the contaminants while not allowing them to enter the breathing zone of the occupants For contaminants that are lighter than air grilles should be located high on the wall If contaminants are heavier than air a lower placement of the grilles will be required Information on a contaminants specific gravity and toxicity should be available from chemical data sheets Fresh Air Supply System The fresh air supply ductwork from the HRV ERV may be directly connected to the return air duct of the forced air system Check the air flow balance of the HRV ERV with the air handler blower both and OFF
37. igh est airflow highest reading on the gauge Then damper that airflow back to match the lower reading from the other duct The flows should now be balanced Actual airflow can be determined from the gauge reading The value read on the gauge is called the velocity pressure The Pitot tube comes with a chart that will give the air flow velocity based on the velocity pressure indicated by the gauge This velocity will be in either feet per minute or metres per second To determine the actual airflow the velocity is multiplied by the cross sectional area of the duct being measured This is an example for determining the airflow in a 6 duct The Pitot tube reading was 0 025 inches of water From the chart this is 640 feet per minute The 6 duct has a cross sectional area 3 14 x 6 12 4 0 2 square feet The airflow is then 640 ft min X 0 2 square feet 128 cfm For your convenience the cross sectional area of some common round duct is listed below DUCT DIAM inches CROSS SECTION AREA sq ft 5 0 14 6 0 20 7 0 27 The accuracy of the air flow reading will be affected by how close to any elbows or bends the readings are taken Accuracy can be increased by taking an average of multiple readings as outlined in the literature supplied with the Pitot tube Pitot tube and gauge Pitot Tube Air Flow Balancing Kit c w magnehelic gauge Pitot tube hose and carry case PART NO 99 167 Place pitot tube a mini
38. imited to lighting hurricane tornado earthquake or any other acts of God improper installation modification alteration or misuse of the LIFEBREATH or its operation in a manner contrary to the instructions accompanying the unit at the time of sale accidental or intentional damage neglect improper care or other failure by the owner to provide reasonable and necessary maintenance of the product any attempt at repair by an unauthorized service representative or not in accordance with this warranty or any other causes beyond the control of NUTECH are excluded from this warranty If you feel that the LIFEBREATH you purchased is not free from manufacturing defects please contact NUTECH ENERGY SYSTEMS INC 511 McCormick Blvd London Ontario N5W 4C8 519 457 1904 or fax 519 457 1676 to find the name of your nearest dealer in order to repair the product The labour required to install any replacement part s shall be dealt with at the option of the customer in either of the following ways a the customer may supply labour at their own expense or b if the product was purchased from a dealer then the dealer will supply labour at cost to the customer NUTECH reserves the right to replace the entire unit or to refund the original purchase price in lieu of repair NUTECH MAKES NO EXPRESS WARRANTIES EXCEPT FOR THOSE THAT ARE SET FORTH HEREIN AND SHALL NOT BE LIABLE FOR ANY INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES WITH RESPECT TO L
39. ix months CONDENSATE DRAINS The condensate drains consist of two drain pans which may collect water after the HRV ERV initiates a defrost cycle and a drain line to remove the condensate Maintenance on this portion of the system should be done as often as possible and should not exceed six months Note bacterial growth in standing water is a major concern to healthy indoor air quality and should be avoided whenever possible To clean these components open the front service door and flush the pans with water Ensure that the pans drain completely and in a reasonable amount of time Note if the water does not drain right away check for blockage in the drain line also check that the drain line has a good slope to it 1 8 1 4 per foot The drain line itself should have a trap in it below the HRV ERV which is to be filled with water to prevent odours or gases from entering back into the unit When flushing out the drain pans this too will be flushed out and the water that was there will be replaced with clean water 25 DUCT WORK It is a good idea to inspect ducting outside weather hoods wall caps and grilles for blockage and dirt buildup at least every six months Outside weather hoods should be protected by a rodent screen which can plug up with debris Also it is a good idea to visually confirm that the fresh air supply is free from any sources of contamination such as other vented combustion equipmen
40. method of field balancing an HRV ERV using a Pitot tube advantageous in situations when flow stations are not installed in the duct work Procedure should be performed with the HRV ERV on high speed The first step is to operate all mechanical systems on high speed which have an influence on the ventilation system i e the HRV ERV itself and the forced air furnace or air handler if applicable This will provide the maximum pressure that the HRV ERV will need to overcome and allow for a more accurate balance of the unit Drill a small hole in the duct about 3 16 three feet downstream of any elbows or bends and one foot upstream of any elbows or bends These are recommended distances but the actual installation may limit the amount of straight duct The Pitot tube should be connected to a magnehelic gauge or other manometer capable of reading from 0 to 0 25 in 0 62 Pa of water preferably to 3 digits of resolution The tube coming out of the top of the pitot is connected to the high pressure side of the gauge The tube coming out of the side of the pitot is con nected to the low pressure or reference side of the gauge Magnehelic gauge Insert the Pitot tube into the duct point ing the tip into the airflow For general balancing it is sufficient to move the pitot tube around in the duct and take an average or typical reading Repeat this procedure in the other supply or return duct Determine which duct has the h
41. mum of 18 from blower or elbows Outdoors SX Pitot Magnehelic tube gauge Note Duct connections may vary depending on model TI 74 2C 0105 SERVICE M AINTENANCE Servicing your HRV ERV on a regular schedule will result in optimum operating efficiencies and prolonged life of the equipment Due to numerous applications in which this equipment can be installed it is difficult to predict servicing intervals In certain situations where there is heavy smoke servicing the equipment every one two months may be needed whereas ventilating a meeting room for example for carbon dioxide may only need service every six months to a year MOTOR Access to the motor is through the front service doors Note heat exchanger core can be removed to provide more room See CORE in this section The motor is a permanent split capacitor type PSC which uses a sleeve mechanism to steady the shaft There is an oil wick beside the sleeve which supplies oil to it on a continuous basis If the motor does not have oil tubes no maintenance is required Access to the wick is through oil tubes two per motor located in the motor case itself These oil tubes are either capped with yellow plugs which need to be removed for oiling or have clear tubes protruding from them In either case an oiling device such as an Oil Telespout filled with 20 S A E non detergent electric motor oil
42. ntenance doors 2 Locate the snap disc type temperature sensor mounted in the upper left hand corner cold air stream of the HRV 3 Disconnect the two wires from the HRV to the sensor at the sensor Using a jump wire with alligator clips join two wires from the HRV together 5 Close access doors and power the unit 4 This procedure will simulate a defrost that would occur automatically in the field when the outside temperature drops below 3 C 27 F Speed Selection and Controls Model 700 850 and 12200 HRV ERV only These models are equipped with a 3 speed control low medium and high as well as a lighted on off switch and a 4 screw terminal strip The terminal strip can be used to connect any low voltage device which will then jump the unit to high speed from whatever setting the speed control was on The terminal strip can also be remote location as well as from high to low from a remote location To wire the unit in this configuration you would need two electrical on off switches to be installed at the remote location into a double gang electrical enclosure or side by side One should be labeled on off and the other should be labeled high low wired to allow the unit to be turned off from a ON OFF SWITCH C 3 SPEED CONTROL i S HIGH COMMON ON OFF OFF ON OFF ONLY LOW HIGH ONLY ON OFF LOW HIGH SWITCHING FROM REMOTE LOCATION Supplied and Installed by Contractor Optional Remot
43. nto a building while exhausting an equal amount of stale air An ERV is designed for use in warm humid areas with heavy air conditioning use The ERV will transfer both sensible and latent heat from the incoming fresh air to the outgoing stale air thereby reducing the load due to ventilation on the air conditioning system ERVs are not suitable for climates where the temperature drops below 4 C 25 F ERV Questions amp Answers What 15 the difference between and an ERV The core in an HRV Heat Recovery Ventilator transfers heat from one air stream to the other This is called sensible heat The term ERV Energy Recovery Ventilator is usually used to describe a unit with an enthalpic core that transfers moisture as well as heat from one air stream to the other This moisture transfer is called latent heat Enthalpic what does it mean Enthalpy is the term used to describe the energy content of air This energy is a combination of the sensible and latent heat Therefore a core which transfers energy is called an enthalpic core Is an ERV better than an HRV NOT NECESSARILY In cold climates such as most of North America an HRV works better than an ERV This is because the air inside the home during the winter months will be more humid than the outside air An ERV would transfer the latent heat humidity from the exhaust air back into the incoming airstream This will aggravate moisture problems in the h
44. ome and encourage the growth of mold and mildew If the air in the home is too dry for comfort an ERV will not help A humidifier should be used to increase the humidity to a comfortable level Where do you use an ERV instead of an HRV An ERV is recommended for warm humid areas with heavy air conditioning use As there is no defrost in an ERV it is not recommended for areas where the temperature drops below 4 25 F Why transfer moisture in the summer cooling season The enthalpic core will allow moisture to be transferred from a humid air flow to a dry air flow This property is useful in the cooling season if an air conditioning System is used to lower the indoor humidity You will then have dry cool air in the exhaust of the ERV and warm humid air in the supply stream With these conditions the ERV will be able to transfer the moisture and heat of the supply air to the exhaust air In this way the ERV will supply to the home air which is cooler and drier than outside Remember that an ERV is not a dehumidifier and on its own will not take moisture out of the air So why use an ERV A properly operating air conditioner will not only lower the temperature in your house but will also lower the humidity level This prevents an uncomfortable cold and damp situation In fact about 2 3 of the energy used by the air conditioner system is to remove moisture Therefore when ventilating in the summer less moisture brought
45. ouble shafted 120 VAC 4 Amps each 8 1 total on 518 1100 HIGH SPEED 7 8 MED LOW SPEED high speed HP 1 4 1625 RPM Watts total on high speed 972 5 472 1000 FILTERS z 423 900 Washable air filters in exhaust and supply air streams SR geen mes BLOWERS a 329 700 lt Centrifugal type rated at 1200 cfm 566 L s free air delivery Each air stream has one double shafted motor driving a centrifugal blower TOTAL CURRENT DRAW AMPS 120 VAC CONNECTION DUCT SIZES 25 4 50 2 75 3 100 4 125 5 150 6 175 7 Four 20 x 8 508 mm x 200 mm EXTERNAL STATIC PRESSURE IN PASCALS in W C MOUNTING TEMPERATURE EFFECTIVENESS Unit to be set on support brackets hung by threaded rod type apparatus brackets and rod not provided CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation where required to prevent exterior condensation Drain connections two 1 2 12 mm O D CONTROLS Illuminated power switch speed blower control low voltage 24 VAC terminals for connection of remote controls and defrost light NOTED Fere E EN indicating automatic operation DE FROST CONTROLS 235 282 329 378 423 472 518 566 MODEL 1200FD Interrupts supply air while exhaust air defrosts core 500 BEC IN ote 11007 1200 MODEL 1200DD Supply bypass routes indoor air to defrost core WEIGHT 191 lb
46. rifugal blower CONNECTION DUCT SIZES Four 20 x 8 508 mm x 200 mm MOUNTING Unit to be set on support brackets hung by threaded rod type apparatus brackets and rod not provided CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation where required to prevent exterior condensation CONTROLS Illuminated power switch 3 speed blower control low voltage 24 VAC terminals for connection of remote controls WEIGHT 191 Ibs 87 kg SHIPPING WEIGHT 215 lbs 98 kg Model 2200ERV PERFORMANCE AIRFLOWS Each Air Stream 8 1 HIGH HIGH SPEED 7 8 MED MED SPEED 7 4 LOW AIRFLOW E S LOW SPEED TOTAL CURRENT DRAW AMPS 120 VAC 25 4 50 2 75 3 100 4 125 5 150 6 175 7 EXTERNAL STATIC PRESSURE IN PASCALS in W C TEMPERATURE EFFECTIVENESS E EFFECTIVENESS e e Ei NOTE Exhaust Relative Humidity RH at 4096 295 282 320 378 43 472 58 566 500 600 700 800 900 1000 1100 1200 AIRFLOW IN L s CFM ENTHALPIC CORE SUPPLY AIR FROM OUTSIDE NOTE Service clearance EXHAUST AIR CONTROLS TO OUTSIDE 30 760 from front access 7 EXHAUST AIR DIMENSIONS 200ERV inches mm
47. rops below 27 F 3 C defrost is activated which provides for an automatic defrost cycle During the automatic defrost cycle the fresh air supply is shut off while the exhaust fan contin ues to operate This allows warm inside air to flow through the heat exchanger core melting frost 18 accumulation After the defrost period the fresh air supply fan automatically returns to the normal speed and fresh outside air continues to be drawn into the building Water from the melted frost collects in the bottom drip pans and drains out through the bottom drain connections The defrost cycle repeats automatically until the air temperature rises above 27 F 3 C DAMPER DEFROST Models 700DD 850DD 1200DD These damper defrost HRV s have an electronically controlled damper defrost mechanism If the outside temperature drops below 27 F 3 C the defrost timer is activated A motor driven damper door mechanism opens the defrost port and at the same time closes off the supply air from outside After approximately 3 minutes the damper operates in the opposite direction to close off the defrost port and reopen the fresh air at the supply port The 27 5 minute wait time and 3 minute defrost cycle repeat until the temperature again rises above 27 F 3 C Self Test of Defrost Systems Models 700 850 1200 If confirmation of the defrost system is needed complete the following steps k Disconnect power to the unit and open access mai
48. ry Each air stream has one single shafted motor driving a centrifugal blower CONNECTION DUCT SIZES Four 356 mm x 200 mm 14 x 8 MOUNTING Unit to be set on support brackets hung by threaded rod type apparatus brackets and rods not provided CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation where required to prevent exterior condensation Drain connections two 12 mm 1 2 O D CONTROLS Illuminated power switch speed blower control low voltage 24 VAC terminals for connection of remote controls and defrost light indicating automatic operation DEFROST CONTROLS MODEL 700 FD Interrupts supply air while exhaust air defrosts core MODEL 700DD Supply bypass routes indoor air to defrost core WEIGHT 64 4 kg 142 Ibs SHIPPING WEIGHT 75 8 kg 167 lbs Model 700FD DD PERFORMANCE AIRFLOWS Each Air Stream 423 900 378 800 329 700 282 600 235 500 190 400 143 300 94 200 42 100 5 120 e ROO N o m AIRFLOW L s TOTAL CURRENT DRAW 25 1 50 2 75 3 100 4 125 5 150 6 175 7 EXTERNAL STATIC PRESSURE IN PASCALS IN W C TEMPERATURE EFFECTIVENESS 70 sS 60 EFFECTIVENESS 50 58 NOTE Exhaust Relative Humidity RH at 40 143 300 190 235 28
49. s 87 kg SHIPPING WEIGHT 215 Ibs 98 kg E E EFFECTIVENESS e kj E DIMENSIONS 1200 mm inches SUPPLY AIR FROM OUTSIDE DD MODEL ONLY EXHAUST AIR DESEN TOOUTSIDE FD MODEL ONLY NOTE Service clearance is 760 mm 30 in from front access doors D EXHAUST AIR 1055mm _______ M 1055mm FROM BUILDING EE LB 2 DRAIN CONNECTION 759 mm 29 7 8 SUPPLY AIR 41 1 2 41 1 2 FRONT VIEW ISS EENG DISCHARGE SIDE INLET SIDE OPTIONS All units conform to CSA and UL standards 99 101 Sixty Minute Remote Timer WARRANTY 99 130 Remote Wall Mount Dehumidistat Control All units carry a 15 year warranty on the heat recovery cores 24 VAC only and a 2 year replacement parts warranty DATE 511 McCormick Blvd e London Ontario N5W 4C8 PROJECT Ph 519 457 1904 Fx 519 457 1676 Email nutech lifebreath com MECHANICAL CONTRACTOR ENERGY SYSTEMS INC Website www lifebreath com TI 120 9 0011 wm CLEAN FRESH AIR SPECIFICATIONS LATENT RECOVERY MOISTURE TRANSFER CORES Modular 4 section 2 Enthalpic 2 Aluminum arranged for high efficiency crossflow ventilation MOTORS Two PSC 5 speed double shafted 120 VAC 3 15 Amps each 6 3 to
50. t added after the fact DAMPER MOTOR The damper motor if applicable is a self contained motor and does not require service The damper door attached to the motor could use a little lithium grease on the shaft opposite the motor where it enters its holder once every two three years General Maintenance As a final step in a routine maintenance schedule it is a good idea to confirm operation of the system checking speed control functions and remote control operation if applicable Wipe the inside of the cabinet to remove dust and cob webs as needed It is a good idea to keep a service maintenance log of the unit TROUBLESHOOTING YOUR SYSTEM SYMPTOM CAUSE SOLUTION Poor Air Flows 1 4 6 mm mesh on the outside hoods is plugged Clean exterior hoods or vents filters plugged remove and clean filter core obstructed remove and clean core house grilles closed or blocked check and open grilles dampers are closed if installed open and adjust dampers poor power supply at site have electrician check supply voltage at house ductwork is restricting HRV ERV check duct installation improper speed control setting increase the speed of the HRV ERV HRV ERV airflow improperly balanced have contractor balance HRV ERV Supply air feels cold poor location of supply grilles the airflow may irritate locate the grilles high on the walls or under the baseboards the occupant outdoor t
51. tal on high speed HP 1 10 1625 RPM Watts total on High Speed 610 FILTERS Washable air filters in exhaust and supply air streams BLOWERS Centrifugal type rated at 530 cfm 250 L s free air delivery Each air stream has two centrifugal blowers driven by two PSC motors CONNECTION DUCT SIZES Four 14 x 8 356 mm x 200 mm MOUNTING Unit to be set on support brackets hung by threaded rod type apparatus brackets and rods not included DEFROST Damper defrost system CASE 20 gauge prepainted galvanized steel G60 for superior corrosion resistance Insulated with foil faced insulation duct liner where required to prevent exterior condensation Drain connection One 1 2 12 mm O D CONTROLS ControlAir 15 WEIGHT 178 lbs 81 SHIPPING WEIGHT 203 lbs 92 kg Model 500ERV AIRFLOWS Each Air Stream 2 gt S 282 600 8 I e H 235 500 63 HIGHS H E 190 400 3 8 MED amp 3 1 LOW 143 300 5 H E oam a 42 100 3 5 25 1 50 2 75 3 100 4 125 5 E EXTERNAL STATIC PRESSURE IN PASCALS in W C TEMPERATURE EFFECTIVENESS D 0 100 Ww z gt 90 H oe NOTE Exhaust Relative Humidity RH at 40 94 143 190 235 282 200 300 400 500 600 AIRFLOW IN L s EXHAUST AIR TO OUTSIDE DI M ENSIONS 500 ERV inches mm MOUNTING POINTS NOTE Servic
52. taping with a high quality aluminum foil tape is recommended to seal the duct to both the HRV ERV and the weatherhood Warmside Ducting General Ducting from the HRV ERV to the different areas in the building should be galvanized metal whenever possible To minimize airflow losses in the ductwork system all ducts should be as short as possible and with as few bends or elbows as possible 45 elbows are preferred to 90 elbows Use Wye Y fittings instead of Tees T whenever possible 14 All duct joints must be fastened with screws rivets or duct sealant and wrapped with a quality duct tape to prevent leakage We recommend aluminum foil tape Stale Air Return System The stale air return system is used to draw air from the points in the building where the worst air quality problems occur Balancing dampers and or adjustable grilles are recommended on all return air lines which are used during installation to help balance the draw from different areas of the building Alternately the stale air may be drawn directly from the return air duct When this system is used the air handler s blower must constantly operate The exhaust takeoff connection must be at least a 3 ft 1 m from a directly connected HRV ERV supply duct if both are connected to the same duct run Static pressure of the air handlers return system should be noted and compensated for if it is apparent that the static pressure of the return in the air
53. to determine that it does not imbalance the HRV ERV more than 1096 Also it is advisable to include a short length of flex duct or other non metallic connector in this hard ducted line in order to keep the HRV ERV acoustically isolated and separately grounded electrically from the air handler This will avoid a possible shock hazard to service people if a short to ground develops in one of the devices It may be necessary to install a separate fresh air supply ductwork system if the heating is other than forced air When installing an HRV ERV the designer and installer should be aware of local codes that may require smoke detectors and or firestats in the HVAC or HRV ERV ductwork Because an HRV ERV is designed to bring fresh air into the building structures may require supply voltage interrupt when smoke or flame sensors are triggered or when a central fire alarm system is activated Supply air grilles may be ceiling or high wall mounted Avoid locating incoming fresh air grilles that could cause a direct draft on the occupants as the incoming air may be below room temperature A reheat duct heater can be installed to improve occupant comfort The use of balancing dampers or adjustable grilles to balance the flow rates into various rooms is recommended The use of balancing dampers or adjustable grilles as supply air diffusers and air exhaust covers are recommended TECHGRILLES are round efficient sound absorbing devices av
54. y mounted on its own the Control Pad is wired to the Control Module by 3 wire min 20 gauge Connect the colour coded terminals to the corresponding terminals on the Control Module When the Control Pad is remotely mounted in the Ventilation Dehumidistat or Air Sentry refer to optional controls page for wiring requirements 21 Self Test Each time the HRV ERV is powered energized the self test function will automatically initiate During the self test the HRV ERV will cycle through all the speeds available 1 5 test the damper motor operation and will default back to the previous mode speed selection factory default is Speed 1 Total self test duration is approximately 1 min 30 sec Automatic Defrost Operation Not on all models The advanced technology of the digital microprocessor automatically activates the defrost system only as it is needed To be an efficient heat recovery device the HRV ERV must effectively provide for core defrost as well as providing efficient heat exchange As outdoor conditions cool the temperature sensor thermistor tracks the supply air temperature The thermistor then sends its signal to the microprocessor circuit board which initiates only the defrost cycle time required to clear the core On recirculating defrost models the core is defrosted when the supply air port is automatically blocked off and exhaust air is redirected back through the HRV ERV On damper defrost models the core is
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