16
PROPER INSTALLATION
WALL SLEEVE INSTALLATION
The wall sleeve must be installed before the air conditioner
or heat pump chassis can be set in place. Read the instruc-
tions thoroughly before proceeding.
Pre-installation 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 the fig-
ures below for wall sleeve Dimensions and minimum
wall opening size.
16 1/16"
410 mm
13 3/4
"
350 m
m
Wall Receptacle Within 58" From
Bottom Right Side Corner on
208/230 VAC Units Only
Wall Sleeve Dimensions
Internal
Adjacent
Wall
Internal
Adjacent
Wall
Outside
Wall
Allow Front Clearance (See Table 1)
Minimum Unit Clearances
• The wall sleeve will need to be installed with minimum
clearances to the floor and adjacent walls. Minimum
projections of the sleeve into and out of the room will
also have to be met. See Minimum Unit Clearances and
Minimum Interior and Exterior Projections Figures as
well as Minimum Clearances and Projections table for
details.
• 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.
See Framing with Lintel
Figure for a typical lintel construction.
Framing with Lintel
• When installed in the opening, the wall sleeve must be
horizontally level from side to side and pitched (one
quarter bubble in the sight glass) to the outside. DO
NOT INSTALL LEVEL (FRONT TO BACK) OR SLOPE THE
WALL SLEEVE TOWARD THE ROOM.
• The installer must determine and supply the mounting
bolts and/or screws to attach the wall sleeve to the
sides of the wall opening. Make sure the wall opening is
adequate for strong support.
• The installer must provide adequate sealing and insula-
tion around the sleeve after it is installed (air and wa-
ter tight). See Block and Brick Veneer Installation Fig-
ure for one of many types of constructions.
Steel
Lintel
Caulk Top,
Bottom, and
Both Sides
13 1/2" (340 mm)
Maximum
(No Accessories)
Block and Brick Veneer Installation