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PLAN THE INSTALLATION
1. Do not use in a cooking area.
2. Two ways to connect ductwork to a factory-shipped unit.
ASSEMBLY INSTRUCTIONS
1.Sliding hanger bars have been provided, which allow the housing to be
positioned accurately anywhere between the framing. The bars span up to 24 in.
and can be used on all types of framing: I-joist, standard joist, and truss construc-
tion. Slide hanger bars onto housing and adjust as needed to fit between framing.
2.Extend the hanger bars to the width of the framing. Position the ventilator with
the bottom edge of the hanger bar tabs are flush with the bottom edge of the
framing, holding the ventilator in place.Secure hanger bars to framing using one
screw on each end of hanger bar.Select a proper hole and secure the hanger
bars together using one screw.
3.INSTALL ROUND DUCTWORK
Connect the round ductwork (not included) to the damper/duct connector,and run
the ductwork to a roof or wall cap (not included). Using tape (not included),
secure all the ductwork connections so that they are air tight.
The ducting from this fan to the outside of building has a strong effect on the air
flow, noise and energy use of the fan.
Use the shortest, straightest duct routing possible for best performance, and
avoid installing the fan with smaller ducts than recommended. Insulation around
the ducts can reduce energy loss and inhibit mold growth. Fans installed with
existing ducts may not achieve their rated air flow.
INSULATION*
(Place around and
over Fan Housing.)
FAN
POWER
HOUSING
CABLE*
Seal gaps
around
Housing.
ROUND
DUCT*
Seal duct
*
Purchase
joints with
separately
tape.
Hanger Bar
2
ROOF CAP*
(with built-in
damper)
Keep duct
runs short
WALL CAP*
(with built-in
ROUND
damper)
ELBOW(S) *
screw
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