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Attach Radiation Damper
Extension to Fan Housing
A
E
4. Attach RADIATION DAMPER EXTENSION (A) to the fan
housing.
For lighted units only: Make sure WIRE HARNESS (B) is
positioned above 7/8" diameter ELECTRICAL ACCESS
HOLES (C).
5. Use (4) #8 x 3/8" SHEET METAL SCREWS (D) and 4 SHEET
METAL NUTS (E) supplied in radiation damper parts bag.
Install Fan Housing
H
6. If fan will be mounted between ceiling structure, purchase Hanger
Bar Kit MHB4 from your local Broan-NuTone dealer or distributor.
a.
Fasten (2) MOUNTING CHANNELS (F) to the fan
housing or radiation damper with supplied #8
HEX HEAD SCREWS (G).
Install (2) SUPPORT BARS (H) per side.
b.
B
D
C
G
F
c.
Lift fan housing up into position in ceiling support
structure.
MAKE SURE BOTTOM EDGE OF RADIATION
d.
DAMPER IS FLUSH WITH INTERIOR SIDE
OF FINISHED CEILING.
e.
Extend support bars and secure to ceiling structure
with #8 (M4) sheet metal screws or ¼" diameter bolts
with nuts.
7.
If the fan will be mounted directly to the ceiling support
structure:
a.
MAKE SURE BOTTOM EDGE OF RADIATION
DAMPER IS FLUSH WITH INTERIOR SIDE
OF FINISHED CEILING.
Additional BLOCKING (J) may be necessary to
b.
securely fasten fan housing to ceiling support
structure.
RDM1 Installation Guide
J
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