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3

 

P

ARTIALLY 

D

EDICATED 

S

YSTEM 

I

NSTALLATION

 

Installation Notes: 

 

The HRV/ERV must be balanced. 

 

Unit should be balanced on high speed with the furnace 

blower on. 

 

It is recommended that the furnace blower run 

continuously or HRV/ERV operation be interlocked with 

the furnace blower. Refer to building code. 

 

The duct configuration may change depending on the 

HRV/ERV model. 

 

A backdraft damper is recommended in the exhaust air 

duct to prevent outdoor air from entering the unit. 

 

The airflow must be confirmed on site using the 

balancing procedures found in this guide. 

 

Spring-Loaded Backdraft Damper (recommended): 

Install the Backdraft Damper with the leaf hinge 

vertical.  The damper is installed on the “Stale Air to Outside” 

Collar. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Warning

 

 

Check local codes/authority having jurisdiction for acceptance. 

 

Applications such as greenhouses, atriums, swimming pools, saunas, etc. have unique ventilation 

requirements which should be addressed with an isolated ventilation system. 

 

Weatherhood arrangement is for drawing purposes only.  Check local codes/authority having 

jurisdiction for acceptance. 

 

Backdraft dampers are recommended for the stale air to outside air duct. This damper prevents 

outdoor air from entering the HRV/ERV during the operation of the furnace/air handler while the 

HRV/ERV

 

is in standby, off, or recirculating.

 

Содержание METRO 120 ERV

Страница 1: ...5 A 120 V circuit Caution Before installation careful consideration must be given to how this system will operate if connected to any other piece of mechanical equipment i e a forced air furnace or air handler operating at a higher static After installation the compatibility of the two pieces of equipment must be confirmed by measuring the airflows of the HRV by using the balancing procedure found...

Страница 2: ...ing the balancing procedure found in this manual Never install a ventilator in a situation where its normal operation lack of operation or partial failure may result in the back drafting or improper functioning of vented combustion equipment Unit must be installed level to ensure proper condensate drainage Due to the broad range of installation and operational conditions consider the possibility o...

Страница 3: ...12 10 Lifebreath Dual Hood 13 11 Main Control Installation 99 DXPL02 14 12 Main Control Installation 99 BC02 3 4 15 13 Interlocking the HRV ERV 16 14 Additional Controls 17 15 Timers 18 15 Repeaters 20 16 Installer Selectable High Speed Settings 21 17 Dimensional Drawings 22 18 Balancing the Airflows 24 19 Balancing the Airflows Pitot Tube 26 20 Troubleshooting 27 Homeowners Warranty Information A...

Страница 4: ...ity room or laundry room Leave enough clearance at the front of the access door for servicing the air filters and core The recommended clearance is a minimum of 25 in 635 mm for opening and closing the door Four straps are provided with the unit for hanging it from the basement floor joists Attic installations are not recommended due to The complexity of work to install Difficulty of access for se...

Страница 5: ... guide Spring Loaded Backdraft Damper recommended Install the Backdraft Damper with the leaf hinge vertical The damper is installed on the Stale Air to Outside Collar Warning Check local codes authority having jurisdiction for acceptance Applications such as greenhouses atriums swimming pools saunas etc have unique ventilation requirements which should be addressed with an isolated ventilation sys...

Страница 6: ...nd in this guide Spring Loaded Backdraft Damper recommended Install the Backdraft Damper with the leaf hinge vertical The damper is installed on the Stale Air to Outside Collar Warning Check local codes authority having jurisdiction for acceptance Applications such as greenhouses atriums swimming pools saunas etc have unique ventilation requirements which should be addressed with an isolated venti...

Страница 7: ...here is a location for an optional Backdraft Damper with the leaf hinge vertical The damper is installed on the Stale Air to Outside Collar Warning Check local codes authority having jurisdiction for acceptance Applications such as greenhouses atriums swimming pools saunas etc have unique ventilation requirements which should be addressed with an isolated ventilation system Weatherhood arrangement...

Страница 8: ...rackets 1 Using the hardware provided install the mounting brackets to the unit It is important to isolate the mounting bracket from the attached surface to minimize vibration 2 Install the unit to the mounting surface Attention Do not drill additional holes in the HRV ERV ...

Страница 9: ...ards desired drainage direction and fasten to HRV cabinet with 4 sheet metal screws provided 2 Seal drain spout to bottom of HRV cabinet with silicone 3 Cut one length of 1 2 in drain hose not included and connect to the drain spout Caution The HRV and all condensate lines must be installed in a space where the temperature is maintained above the freezing point or freeze protection must be provide...

Страница 10: ...stove Field supplied balancing dampers should be installed external to the unit to balance the amount of stale air being exhausted with the amount of fresh air being brought into the house Refer to airflow balancing section The Kitchen Grille The Kitchen Grille includes a removable grease filter Most building codes require that kitchen grilles are equipped with washable filters Part 99 10 002 6 in...

Страница 11: ...nd 6 in Adapts to ridged and flex ducting Strong attachment for grilles either vertically or horizontally Stack Head Elbow Part 99 WF 4 6 Use this rough in fitting before the drywall is installed This fitting is ideal for running ducting through 2 x 4 min studded walls Nail to stud Available sizes are 4 in and 6 in Suspended Ceiling Fitting Part 99 CF6 Use this fitting for ceiling tiles or finishe...

Страница 12: ...uct will severely restrict airflow Hard rigid ducting which has been sealed and insulated should be used for runs over 10 ft 3 3 m Refer to your local building code Installation Steps 1 Thermal collar slides over galvanized sleeve to ensure vapor barrier is 100 sealed to wall plate 2 Fasten thermal collar to belt 3 Slide the insulated flexible ducting over galvanized sleeve and fasten it to the th...

Страница 13: ...t must be applied as per instructions or leakage and condensation may occur Insulate the Fresh Air Supply and Stale Air Exhaust duct work back to the unit Attention Contact your local building authority before installation of the Dual Hood to verify compliance with local building codes Note Tested by National Research Council Canada Program Building Regulations for Market Access Report Number A1 0...

Страница 14: ...e wires in between the two screw holes figure B 5 Drill two holes for the screws and wall anchors and drill one hole for the wires in between the two screw holes figure B 6 Pull the 3 wire 20 gauge min 100 ft length max through the opening in the wall 7 Connect the wires to the R G and Y terminals on the back plate figure B 8 Using the two supplied screws and anchors install the back plate on the ...

Страница 15: ...k plate in the desired location on the wall and mark the wall for the desired screw holes figure C 4 Remove the back plate from the wall and mark the hole for the wires centered between the two screw holes figure B or C 5 Drill two 1 8 in holes for the screws and wall anchors and drill one 1 in x 0 75 in hole for the wires 6 Pull the 3 wire 20 gauge min 100 ft length max through the opening in the...

Страница 16: ... operating whenever the HRV ERV is venting The HRV ERV must be interlocked to the furnace air handler with a Simplified Installation Return Return Method The HRV ERV should be interlocked to the furnace air handler with a Partially Dedicated System Installation Caution Consideration should be given to competing airflows when connecting the HRV ERV in conjunction with an air handler furnace blower ...

Страница 17: ...when activated Adding Dry Contact Controls A jumper must be placed between 2 ON and 3 RED terminals on the HRV ERV terminal block to activate the HRV ERV for timers and or dry contact controls or if installing the unit without a main control Jumpers can be added between terminals on the HRV ERV terminal block for additional controls per the table below Setting Terminals Low Speed Ventilation 2 ON ...

Страница 18: ...allation 99 101 The Mechanical Timer is a 2 wire dry contact timer Connect a jumper wire between the 2 ON and 3 RED terminals on the HRV ERV terminal block and connect the two timer wires to the 2 ON and 6 HI terminals on the HRV ERV terminal block as shown Attention Timers mount in standard electrical boxes Use 3 wire 20 gauge min 100 ft length max low voltage wire and multiple timers individuall...

Страница 19: ... was successful figure A If the HRV initiates HIGH fan speed ventilation pairing was successful If the HRV does not initiate HIGH fan speed ventilation pairing was not successful Un pair the timer and return to step 1 of the pairing procedure and restart the pairing process 9 Pair additional timers as necessary by repeating steps 1 through 8 Un pairing 1 Remove the battery from the back of the tim...

Страница 20: ... OFF button 2 DXPL02 control Press the left and right buttons simultaneously on the main control and RESET The screen will go blank and the wireless symbol will appear flashing on the bottom right of the display This indicates that the main control is now in pairing mode 3 BC02 BC03 or BC04 control Press the left and right buttons simultaneously on the main control and or The bottom row LED s will...

Страница 21: ...circulation disabled Note Recirculation is not available on all units Adjusting the EC Motor METRO ECM The airflow on the METRO ECM units can be adjusted up or down The unit must be running for speed alterations to be made 1 Set the unit to the speed which is to be adjusted 2 Locate the ECM circuit board which is under the metal cover on the side of the unit 3 Hold both buttons S1 and S2 at the sa...

Страница 22: ...www lifebreath com 22 17 DIMENSIONAL DRAWINGS Metro 120D and Metro 120D ECM Dimensions Metro 120F and Metro 120F ECM Dimensions ...

Страница 23: ...www lifebreath com 23 17 DIMENSIONAL DRAWINGS Metro 120ERV and Metro 120ERV ECM Dimensions Metro 120ERVD and Metro 120ERVD ECM Dimensions ...

Страница 24: ...ither round or rectangular Balancing Preparation Prior to performing the air balancing procedure perform the following steps 1 Seal the ductwork 2 Confirm the installation and proper operation of all the components of the HRV 3 Fully open the balancing dampers 4 Turn off all household exhaust devices range hood clothes dryer bathroom fans 5 Set the HRV ERV at high speed 6 Prior to balancing the un...

Страница 25: ...irflow All other units require dampers for balancing airflows installed into the Fresh Air to Building and Stale Air from Building ductwork Hard Rigid Ducting Push and turn with slotted screwdriver Damper automatically locks when pressure released Insulated flexible ducting When connecting ductwork to the collar take note where screws are located Screws should be located no further than 1 2 in fro...

Страница 26: ...reams 2 Insert the pitot tube with the tip facing towards the air stream in the Stale Air from Inside stream Move the pitot tube around in the duct facing toward the airflow and take an average reading Record the reading 3 Repeat Step 2 to measure the Fresh Air to Inside stream 4 Review the readings and damper down the duct with the highest duct velocity pressure Repeat Steps 2 and 3 until both du...

Страница 27: ...ay need to run continuously to distribute ventilation air comfortably Dehumidistat is not operating Outdoor temperature is above 15 C 59 F Improper low voltage connection External low voltage is shortened out by a staple or nail Check dehumidistat setting it may be on OFF Dehumidistat is functioning normally see Auto Dehumidistat Disable in this manual Check that the correct terminals have been us...

Страница 28: ...stem Note Minimal frost build up is expected on cores before unit initiates defrost cycle functions Have HVAC contractor balance the HRV ERV Ensure damper defrost is operating during self test Condensation or ice buildup in insulated duct to the outside Incomplete vapor barrier around insulated duct A hole or tear in outer duct covering Tape and seal all joints Tape any holes or tears made in the ...

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