9
Installation Instructions
3
.
3.1 INSTALL
Step 1
Construct framed opening to correct size according to the Wall Opening listed in chart A below.
See Figure 1A
and 1B.
When installing exterior sheet metal before fan, leave 50mm of the framing exposed on all sides so the
orifice can mount flush to the frame.
Minimum Spacing
'Z'
Chart A
Wall Opening
(W. x H.)
Fan Dia.
305 recommended; 90 minimum
54”
1435 x 1435
Figure 1B
100x100
Post Construction - Elevation View
Ceiling
Framing
H
(see chart
A)
305
W
(see chart A)
See minimum
spacing notes in
Chart A
Z
50
x
200
Header boards
100
x
100
or
100
x
150
Posts
50 x 100
Framing
50 x 200
Banner boards
Ceiling
100 x 100 or 100 x 150
Posts
W
(see chart A)
H
(see chart
A)
Note:
Damper doors should
be carefully set aside
out of direct sunlight
until needed.
Center To Center
Dimension
1524 Minimum
Figure 1A Frame Construction
W
Top View
W O.C
W x H W
all Opening
Sheet Metal Opening
Stud Wall