Ventilating fan
11
Installation
(Between joist mounting installation) continued
4.Insert the fan body between joists.
Make sure the fan body is level and square (perpendicular)
with the joists.
Keep the flange and joists on same level.
5. Secure the installation bracket
III
to ceiling joist using
long screws (M4X30).
6. Secure the fan body to ceiling joists using long screws
(M4X30) in horizontal direction with installation bracket
I
and
IV
.
III
CAUTION:
(Fig. 21)
(Fig. 20)
(Fig. 19)
Joist spacing A should be between 350mm (13 7/8")
and 430mm (17").
Don't fix the junction box flap to the ceiling joist in this
installation.
Fig. 19
4-Long screws
Installation bracket
I
Installation bracket
IV
Ceiling joist
Installation bracket
III
Ceiling joist
Ceiling joist
junction box flap
Ceiling joist
Ceiling joist
Adapter
1.
2.
Fig. 20
Fig. 21
A
3 5 0 - 4 3 0 m m
( 1 3 7 / 8 " - 1 7 " )
