2. Mount with mountion holes and 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
contact 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 the
hole (refer to the right diagram).
Screw hanger bar to housing with screw A.
3. Mount with hanger bars only
Slide hanger bars onto housing and adjust as needed to fit between
framing. Extend the hanger bars to the width of the framing. Position the
fan with the hanger bar tabs wrapped around the bottom edge of
the framing, holding the fan in place.
Secure hanger bars to framing using one screw on each end of hanger
bar. (refer to the right diagram)
Screw hanger bar to housing with screw A.
PLAN THE INSTALLATION
1. Do not use in a cooking area.
2. Two ways to connect ductwork to a factory-shipped unit.
ASSEMBLY INSTRUCTIONS
2
1. Before installation, you need to know:
Distance A
13 1/4 in to 15 1/2 in (336mm-394mm)
16 1/2 in to 18 7/8 in (419mm-480mm)
Hanger Bar
Channel
Channel A (Fig. 1)
Channel B (Fig. 2)
Hanger bar (short)
Hanger bar (long)
The choice of Hanger Bar
Distance A
14 in to 23 1/2 in (356mm-597mm)
21 1/4 in to 23 1/2 in (540mm-597mm)
Hanger Bar A
Hanger bar (short)
Hanger bar (long)
The choice of Hanger Bar A
ST4.2*13mm
Screw A
Screw B
Hanger bar
(short)
Hanger bar
(long)
ST4.2*25mm
7 1/2 in (190mm)
13 3/8 in (340mm)
Note: Hanger bar (short) only can slide into channle A.
ROOF CAP*
(with built-in
damper)
ROUND
DUCT*
WALL CAP*
(with built-in
damper)
*
Purchase
separately
POWER
CABLE*
INSULATION*
(Place around and
over Fan Housing.)
Seal gaps
around
Housing.
FAN
HOUSING
ROUND
ELBOW(S) *
Seal duct
joints with
tape.
Keep duct
runs short
Hanger bar (long)
Hanger bar A
Screw A
Screw B
Distance A
JOIST
Hole A
Hole B
Hole A
Hole B
Channel A
Channel B
Fig. 1
Fig. 2
Screw A
Screw B
Screw A
Screw A
Screw A
Screw B
