2
16 3/4"
426 mm
26"
661 mm
15 3/4"
401 mm
Figure 1
Wall Sleeve Dimensions
Inside Wall
Lintels
1" Min.
1" Min.
5" Min.
Outside Wall
6"
6"
Ceiling
24"
Min.
Figure 2
Minimum Unit Clearances
1
5
1
3
/1
6
"
4
0
1
.6
m
m
M
in
im
u
m
Finished Floor
5"
Figure 3
Minimum Wall Opening Dimensions
Preinstallation Considerations
Before proceeding with the sleeve installation, ensure the
following guidelines for locating the wall opening and sleeve
are met:
•
The wall opening must be the correct size. See Figure
1 for wall sleeve dimensions and Figure 3 for minimum
wall opening size.
•
The wall sleeve must be installed with a 5” minimum
clearance to the floor and 1 1/2” to adjacent walls. See
Figure 2 for minimum projections of the sleeve into and
out of the room.
•
If installed in a concrete or masonry wall, a lintel must
be provided in the wall opening for support.
Do not use
the wall sleeve as a lintel.
If the wall is less than 8”
thick or of hollow construction, an alternate means of
support for the sleeve must be provided. See Figure 4
for a typical lintel construction.
Wood
Frame
Lintel
Figure 4
Framing with Lintel
•
When installed in the opening, the wall sleeve must be
level from side to side and sloped one quarter bubble
front to back. DO NOT SLOPE THE WALL SLEEVE
TOWARD THE ROOM. See Figure 5.
1/4 Bubble Lower
Front to Back
Level
Rail
F
lashing
Figure 5
Sleeve Installation
Waterproof Barrier
