Installation Manual
33
furnace should be installed in parallel with or on the upstream
side of the cooling unit to avoid condensa tion in the heating
prevent chilled air from entering the furnace and, if manually
operated, must be equipped with means to prevent operation of
either unit unless the damper is in the full heat or cool position.
-
mended that a removable access panel be provided in the outlet
air duct. This opening shall be accessible when the furnace is
installed and shall be of such a size that the heat exchanger
can be viewed for visual light inspection or such that a sampling
probe can be inserted into the airstream. The access panel must
be made to prevent air leaks when the furnace is in operation.
-
furnace, but must be provided, sized and installed externally by
locations. Use a straight edge to scribe lines connecting the
dimples. Cut out the opening on these lines. An un-
requirements.
*MES9*0403AN*
*MES9*0603BN*
*MES9*0803BN*
*MES9*0804CN*
*MES9*0805CN*
*MES9*1004CN*
*MES9*1005CN*
*CES9*0603BN*
*CES9*0804CN*
*CES9*1005CN*
^ Larger filters may be used, filters may also be centrally located.
Consider installing an air cleaner with deep-pleated media
-
will typically require less frequent replacement intervals.
of the furnace. The installation of a centrally installed air
more practicality.
Consult your distributor for information on our complete
installed in the central return register or a side panel external
AIR FLOW
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)