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15
In order to reinstall the chassis and re-
attach the air conditioner front cover, the
installed outercase must be square and
level from side to side. Use wood shims
between sides of case and finished open-
ing - especially where case is secured to
opening - to prevent warping or distorting.
Check installed case for distortion using
carpenter's square.
CAUTION
A finished opening 23-inches wide x 16-inches high is rec-
ommended. The lower left inside corner of opening must be
within 5 feet of an appropriate electrical outlet (see Use and
Care manual for electrical requirements.)
When wall thickness exceeds 5
½-inches, opening must
be modified to allow air to enter side louvers on case (see
special instructions on back ). Do not install air conditioner
in walls thicker than 10 ½-inches.
Dimensions of Finished Opening
Masonry Construction
See CAUTION under General Instructions. In masonry
walls, cut or build a finished opening 15 9/16-inches high
by 22 13/16-inches wide. When case is properly positioned
in opening, secure it in place with mortar or concrete nails
driven through holes in sides of outer case (shim case and
predrill holes before securing with nails).
Brick Veneer or Frame Wall Construction.
See CAUTION under General Instructions. Cut or build
rough opening large enough to allow a framed, finished
opening 15 9/16-inches high and 22 13/16-inches wide.
When case is properly positioned in opening, secure it to
framing material with nails or screws driven through holes
in sides of outer case (shim case and predrill holes before
securing).
Framing
lumber
22 13/16"
15 9/16”
Framed/Finished Opening
(brick veneer or frame wall construction)
Placement of Outer Case in Opening
Place outer case in opening, flush against one side of
opening. Use carpenter’s level and ensure case is level
from side to side and has a
3
/8-inch slope from front to
back (back of case must be
3
/8-inch lower than front to en-
sure proper condensate drainage). If needed, use shims
to level case (from side to side) and to obtain proper back
slope.
Front of case must project ¾-inch (minimum) beyond in-
side wall in order to attach air conditioner front frame. If
framing indoor side of opening with wood molding (or other
decorative material), extend outer case ¾-inch beyond
molding.
When case is properly positioned in opening, use wood
shims to fill any gaps between case and finished opening,
especially in area where case will be secured to opening.
Take care not to warp or distort case when installing
shims. For condensate drainage, install drainage cup in
drain hole on baseplate of case.
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