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2 SIMPLIFIED INSTALLATION (RETURN/RETURN METHOD)
Installation Notes:
• The HRV must be balanced.
• Unit should be balanced on high speed with the furnace
blower on.
• It is mandatory that the furnace blower run continuously
or HRV operation be interlocked with the furnace blower.
• The duct configuration may change depending on the
HRV 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.
•
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 during the operation of the furnace/air handler while the HRV is in
standby, off, or recirculating.
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