Page 9
Shipping Bolt Removal
Units with 1/2 hp blower motor are equipped with three flex-
ible legs and one rigid leg. The rigid leg is equipped with a
shipping bolt and a flat white plastic washer (rather than the
rubber mounting grommet used with a flexible mounting
leg). See figure 8. The bolt and washer must be removed
before the furnace is placed into operation. After the
bolt and washer have been removed, the rigid leg will not
touch the blower housing.
FIGURE 8
RIGID LEG
(Remove shipping bolt
and washer)
ML195UH090P48C
ML195UH110P48C
with 1/2 HP Blower Motor
Installation − Setting Equipment
WARNING
Do not connect the return air duct to the back of the
furnace. Doing so will adversely affect the operation
of the safety control devices, which could result in
personal injury or death.
WARNING
Blower access panel must be securely in place when
blower and burners are operating. Gas fumes, which
could contain carbon monoxide, can be drawn into
living space resulting in personal injury or death.
Upflow Applications
The ML195UH gas furnace can be installed as shipped
in the upflow position. Refer to figure 10 for clearances.
Select a location that allows for the required clearances
that are listed on the unit nameplate. Also consider gas
supply connections, electrical supply, vent connection,
condensate trap and drain connections, and installation
and service clearances [24 inches (610 mm) at unit
front]. The unit must be level from side to side. Unit may
be positioned from level to 1/2" toward the front to aid in
draining. See figure 9.
Allow for clearances to combustible materials as indicated
on the unit nameplate.
FIGURE 9
SETTING EQUIPMENT
UPFLOW APPLICATION
HORIZONTAL APPLICATION
FRONT VIEW
SIDE VIEW
FRONT VIEW
END VIEW
UNIT
FRONT
AIR FLOW
UNIT
FRONT
1/2"
max.
1/2"
max.
AIR FLOW
AIR FLOW
SIDE VIEW
UNIT
FRONT
Unit must be level side−to−side. Unit may be positioned from level to 1/2" toward the front to aid in draining.
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