Armstrong World Industries 243, 302, 242, 122 Installing With a Wall Sleeve, HW/HWC Installation

Service Reference Manual INSTALLATION

6-5

Installing With a Wall Sleeve

CAUTION

The sleeve is not intended as the sole support for the unit. Additional support must be provided near the return opening on the unit for adequate support. The use of vibration isolation material between the unit and the support is recommended.

Refer to the installation instructions packed with the wall sleeve and Figure 6-1 for guidance in assembly and mounting using a wall sleeve. See also the Accessories section beginning on page 7-3 for further details on wall sleeve installations.

Refer to page 6-6 for information concerning additional support under the

HW/HWC unit.

Make sure the gaskets attached to the sleeve are not damaged.

Seal the space between the wall sleeve and the building opening with non-hardening caulking compound. The seal must be weathertight to prevent entrance of moisture and water into the building.

Assure that the unit is completely seated against the gaskets on the wall sleeve.

Wall Sleeve

6" X 22" Minimum Opening to Align with Return Air Opening In Unit.

	.
28"	Min

Vibration Isolating Material

FLOOR

Plywood

SRM-HW/HWC 8/99

FIGURE 6-1 HW/HWC Installation