Page 3
MODEL QT80L
5. Connect electrical wiring.
Run 120 VAC house wiring to installation location. Use
proper UL approved connector to secure house wiring to
wiring plate. Connect wires as shown in wiring diagrams.
CONNECT WIRING
3. Attach
damper/duct
connector.
Snap damper /
duct connector
onto housing.
Make sure con-
nector is flush with
top of housing and
damper flap falls
closed.
4. Install
4-inch
round
ductwork.
Connect 4-inch
round ductwork
to damper / duct
connector. Run
ductwork to a
roof cap or wall
cap. Tape all
ductwork connections to make them secure and air tight.
INSTALL HOUSING & DUCT
1. Bend
housing
tabs.
Use a pliers to
bend housing
TABS
out to 90
0
.
2. Mount
housing to
joist.
Hold housing
in place so that
the housing
tabs contact the
bottom of the
joist. The hous-
ing mounts with
four (4) screws
or nails. Screw or
nail housing to joist through lowest holes in each mount-
ing flange, then through highest holes. NOTE: Mounting
to
I-JOIST
(shown) requires use of
SPACERS
(included)
between the highest hole of each mounting flange and the
I-joist.
SPACER
(use for mounting to I-Joist)
I-JOIST
TABS
INSTALL GRILLE
6. Finish ceiling.
Install ceiling material. Cut out around housing.
7. Attach grille
to housing.
Squeeze grille
springs and insert
them into slots
on each side of
housing.
