Page 2
MODEL QT90E
TYPICAL INSTALLATIONS
Housing mounted to I-joists.
Use I-joist spacer block (provided).
Housing mounted to joists.
Housing mounted to truss.
PLAN THE INSTALLATION
The unit will operate most quietly and efficiently when located
where the shortest possible duct run and minimum number of
elbows will be needed.
Use a roof cap or wall cap that has a built-in damper to reduce
backdrafts.
Plan to supply the unit with proper line voltage and appropriate
power cable.
Cooking
Equipment
Floor
COOKING AREA
Do not install above or
inside this area.
45
o
45
o
NOT FOR USE IN
A COOKING AREA.
*Purchase
separately.
INSULATION*
(Place around and
over Fan Housing.)
ROOF CAP*
(with built-in
damper)
FAN
HOUSING
POWER
CABLE*
4-IN. ROUND
DUCT*
4-IN.
ROUND
ELBOWS*
Seal gaps
around
Housing.
Seal duct
joints with
tape.
OR
Keep duct
runs short.
WALL CAP*
(with built-in
damper)