INTRODUCTION
These instructions cover the installation of polymeric (plastic) wall sleeves through masonry, steel or wood frame, or curtain walls.

The wall sleeve is shipped separately from the air conditioner chassis. A cardboard filler panel on the rear of sleeve provides weather protection, and a cardboard center support provides needed support until the chassis and rear grille are installed.

When chassis installation is complete, no fasteners are needed to mount the rear grille to the sleeve. The chassis is secured with 4 screws into clips that are factory installed on the front flanges of the sleeve. See Fig. 1.
FIGURE 1 - WALL SLEEVE INSTALLATION

BEFORE INSTALLATION
Select Location - When selecting wall sleeve location, allow at least 14 in. from front of sleeve for removal of front panel and unit chassis for maintenance. Sleeve may be installed flush against floor (including carpeting), except for units with subbase. See below.

NOTE: Front panel may have to be notched to allow exit of electrical cord.

For cord-connected units, an electrical receptacle must be located within reach of service cord. Measure receptacle location from outside corner of sleeve. See Table 1.
TABLE 1 - MAXIMUM RECEPTACLE DISTANCES, IN. (MM)

VOLTAGE	TO LEFT OF SLEEVE	TO RIGHT OF SLEEVE
230/208	18 (457)	36 (914)
265	*	28.25 (717.6)

*The 265-v units are hardwired and the cord will not extend beyond bottom of unit.
UNITS WITH SUBBASE - Sleeve must be installed 3 1/4 in. minimum to 5 1/2 in. maximum above floor (including carpeting). This accommodates subbase height of 3 in. minimum (when screws are down) to 5 in. maximum (when screws are extended). The wall base is 3 in. wide, therefore sleeve must project into room at least 3 1/4 in. Manufacturer recommends using subbase to support wall sleeve. This prevents sleeve from sagging when it projects into room more than 4 inches.

ALL UNITS - Extend wall sleeve at least 5/8 in. beyond building exterior to assure proper drainage and to allow weathertight caulking. Unless flush-mount architectural grille is used, sleeve must be recessed 1 1/8 in. from the outside wall surface. If extended-mount architectural grille is used, sleeve must project outward 5/8 in. beyond outside wall surface.

Sleeve must project at least 1/4 in. (exceptions noted above) into room when installed (for proper caulking).

Opening Size - Recommended minimum wall opening is 42 1/4 in. wide x 16 1/8 in. high.
IMPORTANT: Sleeve must be mounted level in all directions. A 1/4-in. pitch is built into the unit chassis for proper condensate drainage. See step 3.

MASONRY WALLS - Use a lintel to support wall above opening. Opening may be framed in wood, with sleeve secured by wood screws, or sleeve may be fastened to masonry walls with masonry screws.

STEEL/WOOD FRAMING - Use good construction practices such as those used in window framing. Mounting angles, if used, must be field fabricated and installed.
TO INSTALL SLEEVE
Step 1 - Cut Opening in Wall - For opening location and size, see Before Installation.

Step 2 - Prepare Sleeve - Remove cardboard center support. If unit is to be installed at this time, discard support. If unit is to be installed later, save cardboard support for reinstallation in later step.

If grille is to be installed at this time, remove and discard rear panel. Position sleeve in wall opening with bottom down and drain holes toward the outdoors.

Step 3 - Mount Sleeve in Wall - Protrusions are provided in sides and top of sleeve to permit drilling holes for mounting.

1. Drill proper size holes through the appropriate locations in the sleeve (some possible locations have been predetermined and molded into the sleeve). DO NOT DRILL ANY HOLES IN THE BOTTOM PANEL OF THE SLEEVE.

IMPORTANT: Never install fasteners through bottom of sleeve.

2. Check for the correct amount of sleeve insertion into the room then fasten one side of sleeve to the wall using appropriate, field supplied fasteners. Level the sleeve front to back and side to side, (see Fig. 1). Use shims where needed. Fasten the other side of the sleeve to the wall. Fasten the top of the sleeve to the wall (use shims at fastener locations to fill any gaps and prevent distortion of the sleeve).

3. If outdoor grille and chassis are to be installed at a later time, replace the cardboard center support removed in earlier step.

4. Caulk inside and outside to make sleeve weathertight.
CAUTION
Only a manufacturer-authorized outdoor grille should be used with this packaged terminal air conditioner. Use of any other grille must be approved in writing by manufacturer. In deep-wall applications, if an existing grille is used on outdoor wall opening, do not install an additional outdoor grille on unit sleeve. See Fig. 2.
FIGURE 2 - TYPICAL DEEP-WALL APPLICATION

NOTES:
1. To permit outdoor grille to be attached to and supported by unit sleeve, fabricate a sleeve extension (not shown in diagram) so unit sleeve and baffles can reach outdoor grille. Be sure to provide flashing for proper condensate run-off to avoid water damage to room interior. Internal or external drain system may be required.

2. Baffles may be part of the sleeve extension or fixed directly to wall sleeve.

3. Caulk all joints between sleeve or baffles and opening in wall.

4. For wall sleeve location dimensions refer to Opening Size section

5. If an existing grille is used on outdoor wall opening, do not install an additional outdoor grille on unit sleeve.

6. Under certain high humidity conditions, the unit may not dispose of all of its condensate. The installation of an external drain system is recommended.