30
Pushand turnwith slotted
screwdriver.Damper
automaticallylocks when
pressureis released.
Observethe location of the screws
whenconnecting ductwork to the
collar.Screws should be located no
furtherthan 1/2” from the outside
edgeof thecollar and they should
beno longer than 3/4”.
1/2”
Balancing Dampers
Installations where the HRV is ducted directly to
the return of the furnace/Air Handler 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.
TheFC155HRV and FC200HRV models have factory installed
BalancingDampers located in the “Fresh Air to Building” and
“StaleAir fromBuilding” collars.
Allother unitsrequire theinstallation of balancingdampers (not
included)in the “Fresh Air to Building” and “Stale Air from
Building”ductwork. Refer to the installation diagrams in this
manualfor theSimplified, Partially Dedicated, and Fully
Dedicatedsystems.
NOTE
Illustration of Adjusting the Factory Installed
Balancing Damper
Illustration of Connecting ductwork to the
Balancing Damper Collars