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Attach 4-inch Round Metal Duct
13. Attach 4-inch round metal duct to the duct connector and
discharge air to an outside location. Seal all joints with duct
tape.
14. Make sure damper flap opens and closes freely without
binding.
Connect Wiring
15. Refer to instructions supplied with the fan for various
electrical wiring options.
16. Install electrical box cover removed in Step 2. Secure with
one #8-18 hex head screw provided in fan parts bag.
17. Lighted fan models: Connect WIRE HARNESS (B) from
radiation damper extension to the CONNECTOR (F) on the
wiring box.
Non-lighted fan models: WIRE HARNESS (B) from radiation
damper extension is not used and can be removed. Cut wire
tie and discard the harness.
Attach Support Bracket to Fan
Blower
18. Assemble SUPPORT BRACKET (G) (supplied with radiation
damper) to fan blower as shown. Secure the bracket to motor
studs with (2) #8-32 HEX NUTS (H) supplied in radiation
damper parts bag.
H
G
Install Blower into Fan Housing
19. Push blower straight up in fan housing and snap into position.
20. Secure blower with (2) #8-18 hex head screws from the fan
parts bag.
21. Plug blower motor into receptacle located on wiring panel.
Attach Radiation Damper
22. Align RADIATION DAMPER (I) holes with holes in the fan
EXTENSION (A).
23. Push radiation damper up into the fan extension. Make sure
flange is installed as shown. Label inside damper shows
correct installation position.
24. Fasten radiation damper to the fan extension with (4) #8
X 3/8" SHEET METAL SCREWS (J) from the radiation
damper parts bag.
RDMWT Installation Guide
F
J
A
I
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