290699-YIM-B-0607
Unitary Products Group 11
FILTERS
One-inch or two-inch filters can be supplied with each
unit. Filters must always be installed ahead of the
evaporator coil and must be kept clean or replaced with
same size and type. Dirty filters will reduce the capacity
of the unit and will result in frosted coils or safety shut-
down. Minimum filter area and required sizes are
shown in Physical Data Tables 9 and 11.
SERVICE ACCESS
The following removable panels provide access to all
serviceable components:
• Compressor compartment
• Electric Heat compartment
• Gas Heat compartment
• Blower compartment
• Main control box
• Filter compartment
Refer to the Dimensions and Clearances shown in Fig-
ures 10, 11, 13 and 14 for location of these access
panels.
Do not loosen compressor mounting bolts.
Make sure that all screws and panel latches
are replaced and properly positioned on the
unit to maintain an airtight seal.
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