Remove all packing material, unplug
1 1
and remove blower from fan housing.
Some models only:
1 4
A pair of flanges
may be attached to
housing if desired
or required.
Snap both flange pieces
under rolled-over edge of
housing (all four sides).
Attach damper/duct connector to
1 5
fan housing.
Push connector
through opening
from inside of
housing.
Engage tabs
and secure with
TABS
screw from
parts bag.
Connect 4-in.
1 7
round duct.
ALL INSTALLATIONS
1 2
NEW INSTALLATION
Mount housing to ceiling structure.
1 6
Make sure bottom of housing
will be flush with finished
ceiling.
For proper location using ½"
ceiling material: Bend out
housing tabs (on outside of
housing) to fit against bottom
of joist.
Secure housing through
mounting ears with appropriate
fasteners. If mounting housing
to I-joist, use wood blocking as
shown.
A 4 to 6-inch
duct expander
is provided with
select models.
2
Remove wiring panel
from fan housing (if
already installed).
For Retrofit Installation -
Skip to Page 3.
Some models only:
1 3
Select 50, 80 or 110
CFM based on your room
size and desired
air flow.
50 80 110
WOOD
BLOCKING
HOUSING TABS
I-JOIST