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6
3
P
ARTIALLY
D
EDICATED
S
YSTEM
I
NSTALLATION
Installation Notes:
•
The HRV 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 operation be interlocked with the
furnace blower. Refer to building code.
•
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.
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 during the operation of the furnace/air handler while the HRV is
in standby, off, or recirculating.
