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IM 938-4 / Page 11 of 42
Thick Wall Construction
A heavy-gauge, corrosion resistant wall sleeve is provided
for each unit. The wall sleeve is either shipped in a separate
carton or shipped in a multi-pack of 15.
Typical installation for masonry walls is shown in
Figure
12
. The recommended installation procedure for this type of
construction is as follows:
1. Clean the opening of all debris that may interfere with
installation.
2. Be sure the unit’s center of gravity falls within the load
bearing surface of the wall. The center of gravity for the
unit is approximately 10-3⁄4" (273mm) from the rear
edge of the wall sleeve. If the center of gravity is not
within the load bearing surface, then additional support
such as wood, metal or concrete must be provided in the
field.
3. Place a thin pad of soft mortar on the bottom of the
opening. Important: Make certain the wall sleeve
protrudes into the room a minimum of 1-1⁄8" (29mm)
beyond the finished wall surface to accommodate the
heat section and room cabinet. Be sure to recess the wall
sleeve enough to accommodate outside louver. This
recess is 3/8" (9.5mm) for stamped louvers and 1-1⁄4"
(32mm) for architectural louvers. The louver should be
flush to exterior surface when completed.
4. If a brickstop is employed (as shown in
Figure 13
),
slide the wall sleeve into the wall until the brickstop
contacts the exterior bricks, as illustrated below. If a
brickstop is not used, slide the wall sleeve in the wall
so that it extends into the room a minimum of 1-1⁄8"
(29mm) beyond the finished interior wall surface.
This allows room to attach the heat section and room
cabinet. The wall sleeve should also be recessed enough
to accommodate the outside louver. Level wall sleeve
side to side and pitch to outside 1/4"/ft. to assure proper
sleeve drainage to outside.
5. After the mortar has dried, remove the masonry support
from the wall sleeve. Note: The wall sleeve is not
intended to replace the lintel.
6. Anchor with appropriate fasteners (as shown in
Figure
14
). A 5/16" (8mm) hole is provided on each side, 2"
(51mm) down from the top and 2" (51mm) in from
the rear of the wall sleeve. It may necessary to drill
additional holes in the wall sleeve to firmly
secure it.
CAUTION
Do not drill holes in the base of the wall sleeve. Use shims
between the wall and the wall sleeve to prevent wall sleeve
distortion during anchoring.
7. Caulk the wall sleeve to the wall opening on both the
in-side and outside perimeter using a resilient,
nonhardening caulk such as silicone. Be careful not to
plug the weep holes.
Figure 12: Wall sleeve installation using brickstops
D
Outside
Louver
B
1"
Finished
Floor
Wall Sleeve
A
Wood Stool
Casement Window with
Insulating Clear Glass
2' to 6-1/2"
Exposed
Projection
Concrete Slab
7-1/4"
Brick
1' to 4"
4"
2' to 4"
Brick
Room
Cabinet
Optional
Continuous
Flange
Figure 13: Standard 16" x 42" wall sleeve with brick stop
Outside Edge
of Sleeve
Wall Sleeve
D
X
Optional Brickstops
42"
(1067mm)
1-1/4" (32mm)
16"
(406mm)
Notes:
1. For dimensions
B and D
, see table on
page 6
.
2. Dimension “
X
” is “as required” and is usually
sent to the factory to be welded during wall sleeve
fabrication.
3. Caulk entire perimeter of wall sleeve after
installation.
4. Wall sleeve to extend a minimum of 1-1/4" past
finished sheetrock.
5. Wall sleeve should be installed recessed 1-1/4"
from face of brick so that when louver is installed it
is flush with face of building.