installation guide vänee hrv 60h and erv 60h
Contents
1. VLO019 ITEM DESCRIPTION Part NumBeR 41600 HRV 41602 HRV 41604 ERV 41606 ERV PORTS ON SIDES PORTS PORTS ON SIDES PORTS ON PORT FITS 5 DIAMETER DUCTS 16040 DOOR LATCH WITH SCREWS 16035 OVAL PORT WITH INTEGRATED BALANCING DAMPER 16041 amp WHEEL ASS Y MOTOR CAPACITOR INCLUDED 16024 16042 16027 ELECTRONIC BOARD 16038 ERV FOAM FILTER 16031 ERV CORE WITH 2 FILTERS 16033 DRAIN CONNECTOR KIT 03203 Door 55 16095 HRV CORE WITH 2 FILTERS 16034 HRV FOAM FILTER 16032 MOTORIZED DAMPER PORT ASS Y 16029 TRANSFORMER 16039 gt gt N 212 gt gt 212 lt k PLEASE CHECK CAPACITOR VALUE SHOWN ON CAPACITOR LABEL BEFORE ORDERING PART NOT SHOWN 17 9 TROUBLESHOOTING If the integrated control LED of the unit is flashing this means the unit sensors detected a problem See the table below to know where on the unit the problem occurs LED flashes GREEN LED flashes AMBER LED flashes RED Problems Thermistor error Damper error Replace the entire port assembly fresh air from outside port Go to Point 6 door is open and the unit is not unplugged Close the door and press on2. snw y aq snw se 3y payloads 21901 OSN WSO P2IS 10 W asf 10471 6 BALANCING THE UNIT To avoid balancing the difference between stale air ducts total lenght and fresh air ducts total lenght must not exceed 50 ft However even if the stale air ducts and fresh air ducts lenghts are almost equal your local building codes may require balancing the unit If the unit does not need to be balanced shut all the pressure taps located on the unit door with the small plastic plugs included in the hardware kit 6 1 What You NEED TO BALANCE THE UNIT e magnehelic gauge capable of measuring O to 0 5 inch of water 0 to 125 and 2 plastic tubes The balancing chart located on the unit door 6 2 PRELIMINARY STAGES TO BALANCE THE UNIT e Seal all the unit ductwork with tape Close all windows doors e off all exhaust devices such as range hood dryer and bathroom fans sure the integrated balancing dampers are fully open Turn the thumb screw A clockwise to manually open the dampers Both are located on the Exhaust air to outside port and on Fresh air to building port e s
3. bee ede ae Bade eee a E 4 5 FULLY DUCTED SYSTEM ohare Po ae DA 4 CENTRAL DRAW POINT ae eee 24 Sees ee eae ae Roe SO eee ee Cee ee a A 4 SIMPLIFIED INSTALLATION O a t raad 4 bid ah anal 4 ATTIC INSTALLATION FOR ERV UNITS ONLY 5 INS as Bd win wd ee ee ous ested a ate 5 10 INSPECT THE CONTENT OF THE bane eee oR ERED ROO ES ER 5 LOCATING AE UNIT ated eee arate 5 WNIT PREPARATION 24 68 fe Set eid dierent Sie ede eles es bbe Re we hee ae Gu Ba ee ek 5 6 ane aca ts ive eae abe ode 6 PLANNING OF THE DUCTWORK 7 INSTALLING THE DUCTWORK AND REGISTERS 7 8 CONNECTING THE DUCTS TO THE 9 INSTALLING THE TANDEM TRANSITION 9 INSTALLING 2 EXTERIOR HOODS dota SES 10 CONTROLS 26052209575 __________ 11 13
4. 0 9 22 oS gt A 5 NOT LESS VJ0038 ra THAN 10 3 1 m VJ0037 Stale air intake Cut an opening into the furnace air handler return duct not less than 10 feet 3 1 from the furnace air handler A B Connect this opening to the Exhaust air from building port of the HRV ERV Fresh air distribution Same instructions as for Method 1 or Method 2 Section 2 6 2 For Method 2 Return return make sure there is a distance of at least 3 feet 0 9 m between the 2 connections to the furnace air handler NOTE For Method 1 it is not essential to synchronize the furnace blower operation with the unit operation but we recommend it CAUTION If using Method 2 make sure the furnace air handler blower operation is synchronized with the unit operation See Section 4 2 INSTALLATION CONT D 2 7 CONNECTING THE DUCTS TO THE UNIT Insulated flexible ducts Use the following procedure for connecting the insulated flexible ducts to the port of the unit Exhaust air to outside and Fresh air from outside ports CAUTION Make sure the balancing dampers are set to their appropriate position before connecting the ducts to the ports See Section 2 3 0039 VJ0040 Pull back the insulation to Attach the flexible expose the flexible duct duct to the port using tie wrap Rigid ducts VJ0043 0041 Pull the insulation over the joint an
5. If there is not enough space on top of the unit slightly bend the hooks and install them lower on the unit See figure beside VD0187 2 2 5 2 6 INSTALLATION CONT D PLANNING OF THE DUCTWORK Keep it simple Plan for a minimum of bends and joints Keep the length of insulated ducts to a minimum Do not ventilate crawl spaces or cold rooms Do not attempt to recover the exhaust air from a dryer or a range hood This would cause clogging of the filters and recovery module If the house has two floors or more be sure to plan for at least one exhaust register on the highest lived in level INSTALLING THE DUCTWORK AND REGISTERS A WARNING Never install a stale air exhaust register in a closed room where a combustion device operates such as a gas furnace a gas water heater or a fireplace 2 6 1 DUCTED SYSTEM AS ILLUSTRATED IN SECTION 1 1 Stale air exhaust ductwork Install the stale air exhaust registers where the contaminants are produced kitchen living room etc Position the registers as far from the stairway as possible and in such a way that the air circulates in all the lived in spaces in the house If a register is installed in the kitchen it must be located at least 4 feet 1 2 from the range Install the registers 6 to 12 inches 152 to 305 mm from the ceiling on an interior wall OR install them in the ceiling Fresh air distribution ductwork Install the fresh air distribution registers in bedr
6. 0108 lt 13 WIRING DIAGRAM 5 9 lt lt 4 5 4 5 2 5 gt 5 gt 2 gt 2 2 a T 5 a CAUTION Never change both Ref 1 and Ref 2 configurations only one configuration can be changed at the same time If Ref 1 and Ref 2 configurations are changed Medium and Low speed will be reversed OU MOTTA 3LIHM amd sajou c 995 8802 40109 2 sajou 995 feuondo yms G sajou Aog gas feuondo OTe 6 sajou as eoeuin4 WOO ON YMS 100q AG6 __ Av Buum VLOLOAA 1 1 peddiys 2 tar tar 18 504445 1198 O
7. __ INSTALLATION GUIDE VANEE HRV 60H AND ERV 60H Model no 41602 Model no 41600 HRV with ports on top HRV with ports on sides 75 VB0072 VB0076 Model no 41606 Model no 41604 ERV with ports on top ERV with ports on sides C VB0073 0075 RESIDENTIAL USE ONLY READ AND SAVE THESE INSTRUCTIONS 2371 06010 0 2 8635 ABOUT THIS MANUAL Because of the large amount of models covered by this publication the illustrations are typical ones Some details of your unit may be slightly different than the ones shown Please take note that this manual uses the following symbols to emphasize particular information A WARNING Identifies an instruction which if not followed might cause serious personal injuries including possibility of death CAUTION Denotes an instruction which if not followed may severely damage the unit and or its components NOTE Indicates supplementary information needed to fully complete an instruction We welcome any suggestions you may have concerning this manual and or the unit and we would appreciate hearing your comments on ways to better serve you Please contact us by phone at 1 800 567 3855 ABOUT THESE UNITS LIMITATION For residential domestic installation only This unit must be installed in accordance with all national and local regulations building codes and safety codes Z WARNING T
8. control may be defective wires may be in reverse position that the color coded wires have been connected to their appropriate places eInspect every wire and replace any that are damaged the wall control and test it right beside the unit using another shorter wire If the wall control works there change the wire If it does not change the wall control eEnsure that the color coded wires have been connected to their fogoy faje el work OR the 20 minute push button timer does not work OR its indicator light does not stay on Humidity Control or push button may be defective appropriate places eJump the OL and OC terminals If the unit switch to high speed remove the Humidity Control or push button and test it right beside the unit using another shorter wire If it works here 0098 change the wire If it doesn t change the Humidity Control or the push button 5 The supply and or exhaust motor do not work circuit board may be defective motor s may be defective 6 The defrost cycle does not work elce deposits be hindering the fresh air duct is frozen OR the fresh air distributed is very cold 7 The integrated control push button does not work the damper operation damper rod or the port damper itself may be broken damper actuator or circuit board may be de
9. INTEGRATEDJGONTROL ecco at eee Bieta ce ey aero tare ete 11 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS 12 13 ELECTRICAL CONNECTION TO THE FURNACE 13 WIRING DIAGRAM 14 BALANCING THE UNIT 15 CONNECTING THE DRAIN HRV UNITS ONLY 16 SERVICE PARIS 17 TROUBLESHOOTING 18 1 TYPICAL INSTALLATIONS Installations may vary according to the type of unit and the ports configuration top or sides Use the following illustrations as guidelines to help you decide on how the unit will be installed All the units should be hung from the joists In every case bathroom fans and a range hood should be used to exhaust stale air Also for homes with more than one level we recommend one exhaust register at the highest level There are 3 installation methods Fully ducted Central Draw Point and Simplified Installation NOTE An electrical outlet has to be available within 3 feet of the unit 1 1 DUCTED SYSTEM PRIMARILY FOR HOMES WITH RADIANT HOT WATER OR ELECTRIC BASEBOARD HEATING Stale air coming from the registers located at the highest level of the
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11. O REDUCE THE RISK OF FIRE ELECTRIC SHOCK OR INJURY TO PERSON S OBSERVE THE FOLLOWING 1 Use this unit only in the manner intended by the manufacturer If you have questions contact the manufacturer at the address or telephone number listed in the warranty Before servicing or cleaning the unit disconnect power cord from electrical outlet This unit is not designed to provide combustion and or dilution air for fuel burning appliances When cutting or drilling into wall or ceiling do not damage electrical wiring and other hidden utilities Do not use this unit with any solid state speed control device other than following main wall controls Lite Touch Bronze Simple Touch Bronze or Bronze and no other optional wall controls than 60 minute crank timer and or 20 minute lighted push button and or Humidity Control 6 This unit must be grounded The power supply cord has a 3 prong grounding plug for your personal safety It must be plugged into a mating 3 prong grounding receptacle grounded in accordance with the national electrical code and local codes and ordinances Do not remove the ground prong Do not use an extension cord 7 Do not install in a cooking area or connect directly to any appliances 8 Do not use to exhaust hazardous or explosive materials and vapors 9 When performing installation servicing or cleaning these units it is recommended to wear safety glasses and gloves 10 Due to the weight of the unit two installers are r
12. The example shown below is a Simplified installation connection to a forced air system CAUTION Due to the potential temperature difference between the attic and the rest of the house all unit ducts must be insulated CAUTION The attic temperature must always be above 0 C 32 F Stale air is exhausted to the outside Fresh air from outside is filtered and supplied to the return plenum of the forced air unit See figure at right To avoid cross contamination and achieve the highest efficiencies the forced air system blower must always be ON NOTE Home with multiple forced air systems should have 1 unit on each system 2 INSTALLATION 2 1 INSPECT THE CONTENTS OF THE Box Inspect the exterior of the unit for shipping damage Ensure that there is no damage to the door door latches power cord etc Remove and discard the 2 transport brackets A and open the door Discard the styrofoam fillers ERV units only and remove the hardware kit from the unit Inspect the interior of the unit for damage Ensure that heat or energy recovery core core filters insulation dampers etc are all intact VD0183 2 2 LOCATING THE UNIT Choose an appropriate location for the unit e Within an area of the house where the ambient temperature is between 10 C 50 F and 65 149 F basement furnace room closet etc So as to provide easy access to the interior of the unit for maintenance Close to a
13. and adjust the exhaust balancing damper to equal the fresh air flow 5 Secure both dampers thumb screw in place with tape 6 Write the required air flow information on a label and stick it near the unit for future reference date maximum speed air flows your name phone number and business address NOTE The unit is considered balanced even if there is a difference of 10 cfm or 5 1 6 17 m h between the two air flows 215 5 7 CONNECTING THE DRAIN HRV UNITS ONLY From the inner side of the unit door using the provided drain tube punch out both drain holes A 00092 Cut 2 sections of plastic tubing about 12 305 mm long and attach them to each drain fitting Join the 2 short sections to the junction and main tube as shown 16 00091 In order to keep the drain intact hand tighten the 2 plastic drain fittings to the unit door using the gaskets and nuts as shown Tie wrap vo0093 To drain Make a water trap loop in the tube to prevent the unit from drawing unpleasant odors from the drain source Make sure this loop is situated BELOW the T as shown This will prevent water from being drawn back up into the unit in case of negative pressure Run the tube to the floor drain or to an alternative drain pipe or pail Be sure there is a slight slope for the run off 8 SERVICE PARTS
14. ce on the integrated control Exhaust motor error Possible causes push button to reset the unit Go to Point 5 You should try this 1 Unit does not work circuit board may be defective damper actuator or the integrated e Unplug the unit Disconnect the main control and the optional s control s if need be Jump G and B terminals Plug the unit back and wait about 10 seconds If the motors run on high speed and the damper opens the circuit board is not defective No CNC fogody rfe fB 0097 Unplug the unit Disconnect the main control and the optional controls s 2 The damper actuator does not work damper port mechanism may be defective circuit board may be defective if need be Wait 10 seconds and plug the unit back Check if the damper opens If not use a mulltimeter and check for 24 V AC 12 1 and J12 2 electrical compartment If there is 24 V AC replace the entire port assembly NOTE It is normal to experience a small delay 7 8 seconds before detecting the 24 V AC signal at starting up This signal will stay during 17 18 seconds before disappearing elf there is no 24 V AC replace the circuit board 3 The wall control does not work OR its indicator flashes 4 The Humidity Control does not wires may be in reverse position wires may be broken wire in the wall OR the wall
15. d tuck in between the inner and outer rings of the double collar CAUTION Pull the vapor barrier over the insulation and over the outer ring of the double collar CAUTION Make sure the vapor barrier on insulated does not tear during installation to avoid condensation within the ducts VJ0042 Apply duct tape to the joint making an airtight seal Avoid compressing the insulation when pulling the tape tightly around the joint Compressed insulation loses its R value and causes water dripping due to condensation on the exterior surface of the duct Do not use screws to connect the rigid ducts to the ports Use a small length of flexible duct to connect the rigid duct to the ports in order to avoid vibration transmissions Use tie wraps to perform connections 2 8 INSTALLING THE TRANSITION KIT The joist opening needed to install the Tandem transition must be 9 minimum The maximum height of the Tandem transition is 894 To connect the insulated flexible ducts to the Tandem transition Exhaust air to outside and Fresh air from outside follow the instructions included with the Tandem transition kit part 14690 Patent Pending NOTE Tandem transition kit 2 exterior hoods instead of one See next Section 2 9 INSTALLING 2 EXTERIOR Hoops If the joist are perpendicular to the ducts or if the connection to the exterior hood is in a limited area the
16. ecommended to perform installation 9 POD CAUTION 1 To avoid prematurate clogged filters turn OFF the unit during construction or renovation 2 Please read specification label on product for further information and requirements 3 Be sure to duct air outside Do not intake exhaust air into spaces within walls or ceiling or into attics crawl spaces or garage 4 Intended for residential installation only in accordance with the requirements of NFPA 90B for a unit installed in USA or Part 9 of the National Building Code of Canada for a unit installed in Canada 5 Do run any air ducts directly above or closer than 2 ft 0 61 to any furnace or its supply plenum boiler or other heat producing appliance If a duct has to be connected to the furnace return plenum it must be connected not closer than 9110 3 from this plenum connection to the furnace 6 The ductwork is intended to be installed in compliance with all local and national codes that are applicable 7 When leaving the house for a long period of time more than two weeks a responsible person should regularly check if the unit operates adequately 8 If the ductwork passes through an unconditioned space e g attic the unit must operate continuously except when performing maintenance and or repair Also the ambient temperature of the house should never drop below 18 C 65 F TABLE OF CONTENTS TYPICAL INSTALLATIONS 63450005848 fea
17. ever install more than one optional main wall control per unit Make sure that the wires do not short circuit between themselves or by touching any other components on the wall control Avoid poor wiring connections To reduce electrical interference noise potential do not run wall control wiring next to control contactors or near light dimming circuits electrical motors dwelling building power or lighting wiring or power distribution panel Use the terminal connector included in the installation kit to perform the electrical connection for main and optional wall controls Check if all wires are correctly inserted in their corresponding holes in the terminal block A wire is correctly inserted when its orange receptacle is lower than another one without wire On picture beside wire A is correctly inserted but not wire B 3 2 1 ELECTRICAL CONNECTION TO LITE TOUCH BRONZE OR SIMPLE TOUCH BRONZE MAIN WALL CONTROLS MAIN WALL CONTROL LITE TOUCH BRONZE and SIMPLE TOUCH BRONZE Nofe 6 VEO101A 3 2 2 ELECTRICAL CONNECTION TO BRONZE MAIN WALL CONTROL PAS Pe dO FT 18 VE0103 12 3 CONTROLS CONT D 3 2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS CONT D 3 2 3 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS HUMIDITY CONTROL 60 MINUTE 20 MINUTED LIGHTED PUSH BUTTON CRANK TIMER 5 MAXIMUM NOTE If another optional auxiliary wall control is ac
18. fective 30 second boot sequence is not completed on the integrated control push button until the unit turn low speed the LED will light AMBER Using a multimeter check the voltage on J4 1 and J4 2 for supply motor and on J5 1 and J5 2 for exhaust motor The reading must be 68 V AC Then set the unit on high speed by pressing on the integrated control 1 more time the LED will light GREEN Using a multimeter check the voltage on J4 1 and J4 2 for supply motor and on J5 1 and J5 2 for exhaust motor The reading must be 120 V AC If all the readings correspond to the right voltage values the circuit board is not defective If one or both readings are different change the circuit board eUsing a multimeter check the ohms value on each motor connectors Black motors values For BLUE and BLACK motor wires the right value is 55 ohms For BLUE and BROWN motor wires the right value is 35 ohms For BROWN and BLACK motor wires the right value is 89 ohms Aluminum motors values For BLUE and BLACK motor wires the right value is 51 ohms For BLUE and BROWN motor wires the right value is 47 ohms For BROWN and BLACK motor wires the right value is 98 ohms If he ohms values are the same the motor is not defective Replace the motor capacitor eRemove the eInspect these parts and replace if necessary point 2 Section 3 1 1 Boot Sequence
19. house is exhausted to the outside Fresh air from outside is filtered and supplied by the register located in the lowest liveable level Homes with more than one level require at least one exhaust register at the highest level See figure at right 1 2 CENTRAL DRAW POINT CONNECTION TO A FORCED AIR SYSTEM Stale air coming from the registers located at the highest level of the house is exhausted to the outside Fresh air from outside is filtered and supplied to the return plenum or the supply duct of the forced air unit See figure at right For this type of installation it is not essential that the forced air system blower runs when the unit is in operation but we recommend it NOTE Home with multiple forced air systems should have one unit on each system 1 3 SIMPLIFIED INSTALLATION CONNECTION A FORCED AIR SYSTEM Stale air is exhausted to the outside Fresh air from outside is filtered and supplied to the return plenum or the supply duct of the forced air unit See figure at right To avoid cross contamination and achieve the highest efficiencies the forced air system blower must always be ON NOTE Home with multiple forced air systems should have one unit on each system VH0057 1 TYPICAL INSTALLATIONS CONT D 1 4 ATTIC INSTALLATION FOR ERV UNITS All 3 types of installations can be used in the attic Fully ducted system Central Draw Point or Simplified
20. installation will need 2 INSTALLATION CONT D 2 9 INSTALLING 2 EXTERIOR HOODS Choose an appropriate location to install the exterior hoods There must be a minimum distance of 6 feet 1 8 between the hoods to avoid cross contamination There must be a minimum distance of 18 inches 457 mm from the ground Make sure the intake hood is at least 6 feet 1 8 m away from the following Dryer exhaust high efficiency furnace vent central vacuum vent Gas meter exhaust gas barbecue grill Any exhaust from a combustion source Garbage bin and any other sources of contamination Refer to figure below for connecting insulated ducts to the exterior hoods Anti gust intake hood should be installed in regions where a lot of snow is expected to fall EXHAUST HOOD f OPTIONAL DUCT LOCATION VD0028 10 3 CONTROLS 3 1 INTEGRATED CONTROL All units are equipped with an integrated control located under the unit in front of the electrical compartment Use the push button 1 to control the unit The LED 2 will then shows which mode the unit is in 182 Refer to table below to see how to operate the unit using its integrated control PRESS ON PUSH BUTTON LED RESULTS UNIT 15 Low SPEED Unit 15 ON HiGH SPEED Uniris OFF If a problem occurs during the unit operation its integrated control LED 2 will blin
21. k The color of the blinking light depends on the type of error detected Refer to Section 9 Troubleshooting on last page for further details 3 1 4 BOOT SEQUENCE The unit boot sequence is similar to a personnal computer boot sequence Each times the unit is plugged after being unplugged or after a power failure the unit will perform a 30 second booting sequence before starting to operate During the booting sequence the integrated control LED will light GREEN or AMBER for 5 seconds and then will shut off for 2 seconds After that the LED will light RED for the rest of the booting sequence During this RED light phase the unit is checking and resetting the motorized damper position Once the motorized damper position completely set the RED light turns off and the booting sequence is done NOTE No command will be taken until the unit is fully booted 3 CONTROLS CONT D 3 2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS For more convenience this unit can also be controlled using an optional main wall control NOTES 1 The integrated control must be turned OFF to use an optional main control 2 lf an optional auxiliary control is used if activated this auxiliary control will override the optional main control A WARNING Always disconnect the unit before making any connections Failure in disconnecting power could result in electrical shock or damage of the wall control or electronic module inside the unit CAUTION N
22. n exterior wall so as to limit the length of the insulated flexible duct to and from the unit Away from hot chimneys and other fire hazards e Allow for a power source standard 3 prong grounding outlet For HRV units ONLY Close to a drain If no drain is close by use a pail to collect run off 2 3 UNIT PREPARATION Both HRV and ERV units are equipped with 2 ports having integrated balancing damper Turn the thumb screw A clockwise to manually open and adjust the damper B HRV units Set the Fresh air to building port to wide open position and adjust the Exhaust air to outside port to 3rd notch NOTE Ifthe unit need be balanced adjust the damper of the Exhaust air to outside port to wide open position See Section 6 ERV units Set both Fresh air to building port and Exhaust air to outside port to wide open position VJ0032 Port with integrated balancing damper Top view 2 INSTALLATION CONT D 2 3 UNIT PREPARATION The door latches location can be changed from sides to front of the unit according to the installation needs VD0176 Latches on sides of the unit Latches in front of the unit To do so turn the unit upside down Open the latches an unscrew them from the unit Install the latches on their new locations 00094 00090 2 4 How TO HANG THE UNIT Hang the unit with the 4 chains hooks and springs provided VD0185 CAUTION Make sure the unit is level
23. nchronize the furnace air handler blower operation see Section 4 Method 2 Return side connection Cut an opening into the furnace return duct not less than 10 feet 3 1 m from the furnace air handler A B Connect this opening to the Fresh air to building port of the HRV ERV see figure beside NOTE For Method 2 it is not essential that the furnace air handler runs when the lt 25 1 furnace air handler blower operation see Section 4 wos Q NOT LESS unit is operation but we recommend it If desired interlock synchronize the 27 THAN 10 3 1 2 INSTALLATION CONT D 2 6 INSTALLING THE DUCTWORK AND REGISTERS CONT D 2 6 3 SIMPLIFIED INSTALLATION AS ILLUSTRATED IN SECTION 1 3 PAS WARNING When performing duct connections always use approved tools and materials Respect all corresponding laws and or safety regulations Please refer to your local building code CAUTION When performing duct connections to the furnace supply duct this duct must be sized to support the additional airflow produced by the HRV ERV Also use a steel duct For a Return Return installation the furnace blower must be in operation when the HRV ERV is in operation There are 2 methods for connecting the unit to the furnace air handler Method 1 Supply return connection Method 2 Return return without NOT LESS MINIMUM 18 THAN 10 31 0 5 m STEEL DUCT a MINIMUM 3
24. ooms dining rooms living room and basement Keep in mind that the fresh air registers must be located as far as possible from the stale air registers Install the registers in the ceiling OR 6 to 12 inches 152 to 305 mm from the ceiling on an interior wall The duct lenght should be at least 15 4 6 m The fresh air will then flow through the room and mix with room air ensuring a continuous renewed airflow If a register must be floor installed direct the airflow up the wall 2 6 2 CENTRAL DRAW POINT SYSTEM AS ILLUSTRATED IN SECTION 1 2 Stale air exhaust ductwork Same as for Fully Ducted System described on point 2 6 1 Fresh air distribution ductwork A WARNING When performing duct connections always use approved tools and materials Respect all corresponding laws and safety regulations Please refer to your local building code CAUTION When performing duct connections to the furnace supply duct this duct must be sized to support the additional airflow produced by the HRV ERV Also use a steel duct There are 2 methods for connecting the unit to the furnace air handler Method 1 Supply side connection Cut an opening into the furnace supply duct at least 18 inches 0 5 m from the furnace air handler Connect this opening to the Fresh air to building port of the HRV ERV use steel duct see figure beside Make sure the HRV ERV duct form an elbow inside the furnace air handler ductwork If desired interlock sy
25. tivated when the Humidity Control is installed this control will override the Humidity Control commands 0105 Once the wall control s connections been made insert the terminal connector in the bottom of the unit on the electrical compartment front face TERMINAL CONNECTOR NOTE For information about the operation of the wall controls refer to the user guide 4 ELECTRICAL CONNECTION TO THE FURNACE A WARNING Never connect 120 volt AC circuit to the terminals of the furnace interlock standard wiring Only use the low voltage class 2 circuit of the furnace blower control For a furnace connected to a cooling system On some older thermostats energizing the R terminals at the furnace has the effect of energizing Y at the thermostat and thereby turning on the cooling system If you identify this type of thermostat you must use the ALTERNATE FURNACE INTERLOCK WIRING STANDARD FURNACE INTERLOCK WIRING ALTERNATE FURNACE INTERLOCK WIRING THERMOSTAT THERMOSTAT TERMINALS 2 4 WIRES TERMINAL 2 FOUR 2 WIRES heating only 1 o _____ 8 5 24 VOLT TERMINAL BLOCK 2 WIRES COOLING SYSTEM COOLING SYSTEM FURNACE 24 VOLT TERMINAL BLOCK TWO WIRES
26. ure all filters are clean if it is not the first time you balance the unit 0032 Port with integrated balancing damper Top view 6 3 BALANCING PROCEDURE 1 Set the unit to high speed Make sure that the furnace air handler blower is ON if the installation is in any way connected to the ductwork of the cold air return If not leave furnace air handler blower OFF If the outside temperature is below 0 C 32 F make sure the unit is not running in defrost while balancing By waiting 10 minutes after plugging the unit in you are assured that the unit is not in a defrost cycle 2 Place the magnehelic gauge on a level surface and adjust it to zero 3 Connect tubing from gauge to EXHAUST air flow pressure taps see diagram beside Be sure to connect the tubes to their appropriate high low fittings If the gauge drops below zero reverse the tubing connections NOTE It is suggested to start with the exhaust air flow reading because the exhaust has typically more restriction than the fresh air especially in cases of fully ducted installations or source point ventilation Place the magnehelic gauge upright and level Record equivalent AIR FLOW of the reading according to the balancing chart 4 Move tubing to FRESH air flow pressure taps see diagram Adjust the fresh air balancing damper until the fresh air flow is approximately the same as the EXHAUST air flow If fresh air flow is less than exhaust air flow then go back
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