Installation Guide

NSTALLATION

OSITIONS

A/GMVM97 models may be installed upflow or horizontally with left or right side down. A/GCVM97 models may be installed

downflow or horizontally with left or right side down.

Do not install this furnace on its back. For upright upflow furnaces, return air ductwork may be attached to the side panel(s) and/

or basepan. For horizontal upflow furnaces, return air ductwork must be attached to the basepan. For both upright or horizontal

counterflow furnaces, return ductwork must be attached to the basepan (top end of the blower compartment). NOTE:

Ductwork

must never be attached to the back of the furnace. Refer to “Recommended Installation Positions” figure for appropriate

installation positions, ductwork connections, and resulting airflow arrangements.

ORIZONTAL

PPLICATIONS

& C

ONSIDERATIONS

When installing a furnace horizontally, additional con-

sideration must be given to the following:

FURNACE SUSPENSION

If suspending the furnace from rafters or joists, use

3/8" threaded rod and 2”x2”x1/8” angle iron as shown

in the following diagram. The length of rod will depend

on the application and the clearances necessary.

If the furnace is installed in a crawl space it must be

suspended from the floor joist or supported by a con-

crete pad. Never install the furnace on the ground or

allow it to be exposed to water.

Figure 4A

Figure 4B

Figure 4C

Recommended Installation Positions

2" 2" 3/8"

ANGLE

IRON

PLACES

)

Figure 5