506325-01
Issue 1734
Page 3 of 15
Figure 1. Minimum Clearances
Plenum
Exterior Wall
Wall Sleeve
(one each side)
Interior Wall
Clearances*
Mounting Strap
(one each side)
3/4" Plywood Riser
Floor
Platform (field supplied) - Must be level with sill plate of hole in exterior wall
Front of Unit
Sill Plate
4" Min.
Side View
Clearance to combustible materials is 0” at the side, top, and front of plenum. If accessibility clearances are greater
than clearances to combustibles, accessibility clearances take precedence.
The front of the unit must be accessible for service. If the unit is enclosed, providing a door or access panel opposite
the front of the unit is the preferred method of providing access. The door or access panel must be at least 30” wide
(centered on the unit) and as tall as the unit. If a return duct is not installed, in order to provide adequate return air the
minimum clearance required between the front of the unit and the door or access panel is 4” for 43” tall cabinets and
5” for 48” and 56” tall cabinets.
IMPORTANT
The unit must be installed with approved wall sleeve and grille
accessories for safe operation. Improper installations could result in
property damage, personal injury, or death.
* With no return duct installed, minimum clearances to the front of
the unit are 4” for 43” tall cabinets and 5” for 48” and 56” cabinets.
If a return duct is installed, enough clearance must be provided for
the drain trap installation.
Unit must be supported by platform.
Top View
