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© Munters Corporation, August 2021
QM1231r10
2.1 Wall Framing
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 2” of the framing exposed on all
sides so the orifice can mount flush to the frame.
Installation Instructions
2.
Minimum Spacing
'Z'
Chart A
Wall Opening
(W. x H.)
Fan Dia.
12” recommended; 3½” minimum
36”
44½” W. x 44½” H.
Center To Center
Dimension
48” Minimum
Figure 1B 4 x 4 Post Construction - Elevation View
Ceiling
Framing
H
(See char
t A)
12"
W
(See chart A)
See minimum
spacing notes in
Chart A
Z
2 x 8 Header boards
4 x 4 or
4 x 6 Posts
2 x 4
Framing
2 x 8 Banner boards
Ceiling
4 x 4 or 4 x 6 Posts
W
(See chart A)
H
(See char
t A)
Figure 1A Frame Construction
44
1
⁄
2
”W.
Top View
48”W. O.C.
W x H W
all Opening
Sheet Metal Opening
Stud Wall
