Thermo Pride OMD-70 - Manual (Page 17)

All installations and services must be performed by qualified service personnel.
E. ALCOVE INSTALLATION
In this application, a minimum of 18 inches of
clearance must be provided to the front of the unit.
Refer to Figure 4.
Alcove installations must use the No. 70 mobile
home base.
Note – access to diagnostic view port.
Refer to section G. COMBUSTION AIR for
additional combustion air requirements.
Figure 4.
F. CLOSET INSTALLATION
: HAZARD OF
ASPHYXIATION: A suction effect
will occur when the furnace is
operating inside the closet with the
closet door closed. For proper
operation, the furnace blower shall
create no more than a 0.05-inch water
column pressure differential between
the closet and the adjoining space.
Figure 5.
1. The return air opening into the
closet is to have a minimum free
area of 250 square inches, (refer to
Figure 5).
16