IM 934-2 Applied PDAA/PDHA / Page 16 of 44
Thick Wall Construction Type
Installation of wall sleeves for thick walls requires
special consideration. Table 2 should be used to
determine the maximum wall thickness allowed for the
basic wall sleeve. For thicker walls, wall sleeve exten-
sions are available from your representative (see page
11 for details).
Wall sleeve installation in thick walls is similar to
frame and brick installation. Install as follows (Figure
22, 23, & 24).
1. Clean the opening of all debris that may interfere
with installation.
2. If the unit is to be supplied with a subbase, install
subbase before installing wall sleeve
see IM 936
.
3. If the optional drain kit is to be employed (heat
pump only)
see IM 942
.
4. If wall thickness exceeds dimensions shown in
Table 2, a wall sleeve extension must be used.
Once the extension is attached to the wall sleeve,
place a thin pad of soft mortar on the bottom of
the opening and slide in the wall sleeve/extension
assembly. 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. Louver should be flush to
exterior surface when completed.
Note: The wall
sleeve is not intended to replace the lintel.
5. Level wall sleeve left to right and pitch 1/4" front
to back to the outside. Secure by anchoring with
appropriate fasteners or drill additional holes as
required to secure firmly. Refer to Anchoring The
Wall Sleeve instructions on page 13.
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it
will cause leaks.
6. Where a subbase is used, secure wall sleeve to
subbase with clips provided.
7. Caulk the wall sleeve to the wall opening on both
the inside and outside perimeter. Be careful not
to plug the weep holes. Caulking should be
resilient, nonhardening type such as silicone.
Installation of Basic Wall Sleeve
Figure 23. Thick wall construction with cord connection
1/8"(3mm)
Min.
See Table 2
Caulk
Perimeter
Mounting
Screws
(by installer)
Wall
Sleeve
Extension
Steel Lintel
(by others)
Floor
16"
(406mm)
13
3
/
4
"
(349mm)
17"
(432mm)
Room
Cabinet
Outside
Louver
8
1
/
4
"
(209mm)
3"Min. (76mm)
Wall
Sleeve
Receptacle (by others)
Figure 22. Thick wall construction with electrical
subbase
Note: 1. Standard subbase is available in 3" or 4" (76
mm or 102 mm) height. Leveling legs
provide adjustment of 1" (25 mm).
2. Wall sleeve extension is available in various
depths and supplied as required.
See Table 2
Caulk
Perimeter
Mounting
Screws
(by installer)
See
Note
2
Wall
Sleeve
Extension
Electrical
Subbase
Steel Lintel
(by others)
See Note 1
Floor
4
3
/
8
" Min.
(111mm)
16"
(406mm)
13
3
/
4
”
(349mm)
17"
(432mm)
Room
Cabinet
Outside
Louver
8
1
/
4
"
(209mm)
Louver Type
Stamped
Architectural
No
Subbase
Standard
Subbase
Hydronic
Subbase
Maximum Wall Thickness
14"(356mm)
14
7
/
8
"(378mm)
9
1
/
2
"(241mm)
10
3
/
8
"(264mm)
13
1
/
8
"(333mm)
14"(356mm)
Table 2. Maximum Wall Thickness
