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
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
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 construction.
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.
Hanger Bar
screw
