Lennox International Inc PWC18E9.2 307g0F089, Date, Supersedes 30790G082Page of12 INSTALLATION

Part No. 307g0F089 Date. 6-1-89

Supersedes 30790G082Page_of12

INSTALLATION

Site Preparation

Tills unit is approved for thru-the.wallinstallation, with zero clearance to combustible material. The unit must be installed within a conditioned space to prevent freezing of defrost water in trap assembly and to avoid jacket heat loss and surface condensation problem.

This unit must be installed with the wall sleeve specified for this unit. Refer to the manufacture's specifica- tion sheet for complete information and demensions.

Assemble the wall sleeve in accordance with the instructions furnished with each wall sleeve.

Install the wall sleeve level and square in all comers. It is to extend a minimum of 114" to 3/8" maximum beyond finished wall to permit caulking all around the sleeve without blocking drain holes at bottom front of sleeve.

Before installing unit, Inspect wall sleeve. Make sure the gaskets located on the inside of the outer flanges are firmly attached to the sleeve and are not damaged. Damage or loose gaskets must be repaired before installing unit.

The sleeve is not intended as the sole support for the thru-the-wail unit. An additional support must be pro- vided beneath the front of the unit for adequate support, The use of vibration insulation matedai between the unit and the support is recommended.

See Figure 1.

Wall Sleeve • Seal space between wall sleeve and building opening using non-hardening caulking com- pound. The seal must be water tight+

g"x 22" rain. opening to align with return air opening in unit.

Hole for drain.

Ddll hole on left or dgtht side

• through base after unit is installed.

Celotex, or equivalent

Plywood

FIGURE 1.