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INSTALLATION (NEW CONSTRUCTION)
WARNING
Disconnect power supply before
installing the unit.
Please wear gloves to protect hands
during the installation.
Ensure the junction box cover encloses
all the wires and is completely flush
before locking in place with the attached
screw.
Install Flex-Z Fast™ bracket
Flex-Z Fast™ bracket position can be adjusted from 16" to 24" (406mm to 610mm) between joists.
Unit: inches (mm)
2
Flex-Z Fast™ bracket
1
Bend down 4 tabs and align bracket to the joist.
2
Align and install bracket to joist by using
2-preinstalled tapping screws.
Install circular exhaust duct
Conduit
Knock-out
hole
Junction box
1
cover
1
Remove screw from junction box cover to remove the
knock-out hole and secure conduit or stress relief to
junction box knock-out hole.
2
Install the circular exhaust duct and secure it with clamps
or ties and seal it with mastic or approved foil tape. A 3 or 4
inch circular duct is needed to connect to the relevant part
of the adaptor.
Install the adaptor to Flex-Z Fast™ bracket by using 2
3
self-drilling screws.
1
Bend down
2 Tapping screws
(ST4.2X20)
Circular exhaust duct
2
2 Self-drilling screws
3
Joist
IMPORTANT:
Remove the tape placed on the damper and
adaptor before installation. Failure to do so
will cause the product to work inefficiently and
create a loud noise.
Damper
Tape
4 tabs
2 Tapping screws
(ST4.2X20)
3
4
Live (Fan)
Mastic or
approved
Earth
foil tape
ground
Conduit
Joist
1
If you require use of the 3 inch duct
reducer (optional accessory), use the
following method:
Adaptor
3
Extend bracket to the other joist.
Install bracket to joist by using 2-preinstalled
tapping screws.
Connect wires
Earth ground
Neutral
Wire nuts
White
Green
Switch
Black
Refer to WIRING DIAGRAM (Page 5).
Follow all the local electrical safety codes
as well as the National Electrical Code
(NEC). Use UL approved wire nuts to
connect fan wires. After connecting wires,
replace junction box cover.
Insert
Duct tape
Joist
4
AC 120 V 60 Hz
(Power supply)
Switch box
9
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