PLAN THE INSTALLATION
1. Do not use in a cooking area.
ASSEMBLY INSTRUCTIONS
1. Before installation, you need to know:
Screw A
Screw B
Hanger bar
When installing contractor packs, make sure to install any optional modules such as
speed controls or humidity sensors with the fan housing to ensure wiring is completed
properly. Module and grille plugs come packaged with the optional accessory and must
be installed with the fan housing.
2. Ceiling installation
2a. Mount with mounting holes
Hold housing in place so that the housing contacts the bottom of the joist.
Screw housing to joist through the hole A and hole B.
2b. Mount with hanger bar
Slide one hanger bar into the channel on the housing and adjust as needed to fit
between framing. Hold housing in place so that the housing contacts the bottom of
the joist. Screw housing to joist through the hole A and hole B. Screw the hanger
bar onto the other side of joist through its hole.
Screw hanger bar to housing with screw A.
2c. Mount to I-joist
Slide hanger bar into the channel on the housing and adjust as needed to fit I-joist.
Hold housing in place so that the housing contacts the bottom of joist. Screw
housing to joist through the hole A and hole B. Screw the hanger bar onto the joist
through its hole.
Screw hanger bar to housing with screw A.
ST4.2*13 mm
ST4.2*25 mm
13 3/8 in. (340 mm)
2. Two ways to connect ductwork to a factory-shipped unit.
INSULATION*
(Place around and
over Fan Housing.)
FAN
POWER
HOUSING
CABLE*
Seal gaps
around
Housing.
ROUND
DUCT*
Seal duct
*
Purchase
joints with
tape.
separately
Hole B
Hole A
2
ROOF CAP*
(with built-in
damper)
Keep duct
runs short
WALL CAP*
(with built-in
ROUND
damper)
ELBOW(S) *
Channel
Hole A
Screw B
Hole B
Screw A
Screw B
Screw A
Screw B
Hole B
Hole A
Screw B
Screw B