RDFUWT – Installation Guide
Page 5
12”
ON-CENTER
U
Prepare Ceiling & Install Fan in Ceiling
This radiation Damper and Fan Combination is UL/ cUL
Listed for use in the following Floor Ceiling and Roof
Ceiling Assemblies: L521, L528, L546, L558, L562, L574,
L576, L581, L583, L585, P522, P533, P538, P545, and
P547.
15. Install additional
2 X 4 VERTICAL BLOCKS (U)
as
shown.
16. Make sure lower edge of radiation damper is flush
with INTERIOR SIDE OF FINISHED CEILING.
17. Securely fasten mounting support brackets to (4)
vertical blocks
18. Attach round metal duct to the duct connector
and discharge air to an outside location. Seal all
connection joints with duct tape.
Connect Wiring
19. Refer to instructions supplied with the fan for various
electrical wiring configurations.
20. Install
MASK (V)
supplied with the fan to protect damper
and fan from drywall spray, construction dust, etc.
21. Finish ceiling around radiation damper opening. Ceiling
opening must be no larger than the outside of the
radiation damper.
Finish Installation
22. Remove
MASK (V)
from housing.
23. Fasten
(2) PLASTER SUPPORTS (W)
to the
radiation damper extension with
(6) #8 X 3/8” SHEET
METAL SCREWS (X)
. (Supplied in radiation damper
parts bag.)
V
W
X
