506326-01
Page 3 of 20
Issue 0941
Minimum Clearances
Figure 1
Top 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.
IMPORTANT
The unit must be installed with approved wall sleeve and grille accessories for safe operation. Improper installa-
tions could result in property damage, personal injury, or death.
* Minimum clearance to combustibles for the front
of the unit is 1". Added clearance must be
provided for the gas supply line and drain trap
installation.
1"
Min.
1"
Min.
Front of Unit
Clearance to
Front of Unit*
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
4" Min.
Front of Unit
Sill Plate
Side View
unit must be supported by platform
