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IMPORTANT:
If the furnace and air conditioner
is above a finished space, install a drain pan
underneath the unit.
NOTE:
It is not permissible to use a rear return on this
appliance. Use only side and end returns.
4. AIR CONDITIONING
This furnace may be used as part of an air condi-
tioning system. The furnace wiring and control sys-
tem is “air conditioning ready.” There are the follow-
ing factors to consider:
The air conditioning evaporator coil must
be downstream of the heat exchanger. The
cooled air passing over the warmer heat
exchanger tubes can cause condensation
inside the tubes, resulting in corrosion and
premature failure.
A parallel duct system can be installed to
direct the air from the furnace through the
evaporator coil only. Use dampers or other
means to bypass the heat exchanger. If (sum-
mer/winter) dampers are used, they should
be interlocked to prevent system operation
unless the dampers are in the full open or full
closed position.
5 - COMBUSTIBLE CLEARANCES
Figure 1, Table A provides the certified clearances
to combustibles and dimensional information. Also
see the appliance rating plate affixed to the furnace
for specific model number, serial number and clear-
ance to combustibles information.
IMPORTANT:
This furnace requires a minimum
of 24” of front clearance for service purposes.
For this purpose, service clearance takes prece-
dence over clearance to combustibles.
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WARNING
THIS FURNACE IS DESIGN CERTIFIED FOR
INSTALLATION ON COMBUSTIBLE FLOORS.
THIS SHALL BE INTERPRETED AS A WOOD
FLOOR ONLY.
THE FURNACE MUST NOT BE INSTALLED
DIRECTLY ON CARPETING, TILE, OR OTHER
COMBUSTIBLE MATERIAL EXCEPT WOOD.
INSTALLATION ON COMBUSTIBLE MATERIAL
CAN RESULT IN FIRE, CAUSING PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
WARNING
THE AREA AROUND THE FURNACE MUST
BE KEPT CLEAR AND FREE OF ALL COM-
BUSTIBLE MATERIALS INCLUDING GASO-
LINE AND OTHER FLAMMABLE VAPORS
AND LIQUIDS.
THE HOMEOWNER SHOULD BE CAUTIONED
THAT THE FURNACE AREA MUST NOT BE
USED AS A BROOM CLOSET OR FOR ANY
OTHER STORAGE PURPOSE.
INSPECTION / ACCESS PANEL
If an air conditioning coil is not to be used in the
supply air plenum, it is recommended that the out-
let duct be provided with a removable access panel
which is accessible when installed so the heat ex-
changer may be inspected for possible openings
using light assistance or a probe that can be insert-
ed for sampling the air stream. The access cover
must be fabricated in such a manner as to prevent
leaks.
