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NOTE - The 1/2 hp blower motor used in the SLP99D-
F070V36B and SLP99DF090V36C unit is equipped
with three flexible 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). The bolt and washer must
be removed before the furnace is placed into opera-
tion. After the bolt and washer have been removed, the
rigid leg will not touch the blower housing.
FIGURE 6
Allow for clearances to combustible materials as indicated
on the unit nameplate. Minimum clearances for closet or
alcove installations are shown in FIGURE 7.
WARNING
The blower access panel must be securely in place when
the blower and burners are operating. Gas fumes, which
could contain carbon monoxide, can be drawn into living
space resulting in personal injury or death.
WARNING
Improper installation of the furnace can result in personal
injury or death. Combustion and flue products must
never be allowed to enter the return air system or air in
the living space. Use sheet metal screws and joint tape
to seal return air system to furnace.
In platform installations with furnace return, the furnace
should be sealed airtight to the return air plenum. A door
must never be used as a portion of the return air duct
system. The base must provide a stable support and an
airtight seal to the furnace. Allow absolutely no sagging,
cracks, gaps, etc. For no reason should return and
supply air duct systems ever be connected to or from
other heating devices such as a fireplace or stove, etc.
Fire, explosion, carbon monoxide poisoning, personal
injury and/or property damage could result.
UNITS WITH 1/2 HP
BLOWER MOTOR
RIGID LEG
remove shipping bolt and washer
IThe unit may be installed three ways in downflow applica-
tions: on non-combustible flooring, on combustible floor-
ing using a base, or on a reverse-flow cooling coil cabinet.
Do not drag the unit across the floor in the downflow
position. Floor and flange damage will result. Refer
to FIGURE 7 for clearances in downflow applications.
Downflow Application Installation Clearances
Left Side
Top
*Front
Back
Sides
Vent
Floor
*Front clearance in alcove installation must be 24 in. (610 mm).
Maintain a minimum of 24 in. (610 mm) for front service access.
†Allow proper clearances to accommodate condensate trap and
vent pipe installation.
‡
tional base is installed between the furnace and the combustible
floor.
Installation on Non-Combustible Flooring (FIGURE 8)
1 - Cut floor opening keeping in mind clearances listed
on unit rating plate. Also keep in mind gas supply
connections, electrical supply, flue and air intake
connections and sufficient installation and servicing
clearances. See TABLE 1 for correct floor opening
size.
2 - Flange warm air plenum and lower the plenum into
the opening.
3 - Set the unit over the plenum and seal the plenum
to the unit.
Ensure that the seal is adequate.
Page 7
Top
Right Side
Bottom
0
0
0
0†
0
NC‡
FIGURE 7
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