29
Push and turn with slotted
screwdriver. Damper
automatically locks when
pressure is released.
When connecting ductwork
to the collar, take note where
screws are located. Screws
should be located no further
than 1/2” from outside edge
of collar, so as not to impede
operation of the damper.
1/2”
Hard/Rigid
ducting
Insulated flexible
ducting
Balancing Collar Instructions
Installations where the HRV/ERV is ducted
directly to the return of a furnace may require
additional dampening on the fresh air to
building duct. This is due to the high return
static pressures found in some furnace
installations.
NOTE
*Balancing Collar is not available on all models.
Summary of Contents for Heat Recovery Ventilator HRV 120SRD
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