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Installation - Existing Construction (continued)
2
Attaching fan housing to the ceiling joist
A
C
0.24"
CAUTION: Allow for the thickness of ceiling board used
in your application. Do not flush mount to the joist.
Flange should be flush with the bottom of the ceiling
board.
If spacing between joists is 12 in. apart, use 4 long wood
screws (C) to attach the fan housing (A) directly to the joists
from the bottom through the ceiling board.
3
Attaching fan housing to the ceiling joist
using suspension brackets
If spacing between joists is 16 in. - 24 in., and you have attic
access above, insert suspension bracket I (F) into the bracket
cover on the duct connector side of the fan housing (A). Then,
attach suspension bracket II (G) and suspension bracket III
(H) to the back of the fan housing (A).
4
Securing fan housing to ceiling joist
Secure the fan housing (A) to the joist with suspension brackets
(G, H) using long wood screws (C).
5
Securing suspensions brackets onto fan
housing
Secure suspension brackets (G, H) to the fan housing (A)
using the two machine screws (D) and secure suspension
bracket (F) to the other side of housing using the short
machine screw (E).
6
Reconnecting duct connector
Attach the duct connector to the fan housing (A).
A
F
G
H
C
G, H
A
A
A
D
G, H
E
F
