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507788-01Cmrcool.comPage 4 of 20
Excessive condensation may occur if the unit is installed
unconditioned space, apply sealant around electrical
Apply sealant on the inside of the cabinet at the
electrical controls.
IMPORTANT
This unit is approved for installation clearance to
combustible material as stated on the unit rating
plate. Accessibility and service clearances must take
precedence over combustible material clearances.
The air handler must be installed so that free access is
compartment.
IMPORTANT
NOTE:
NOTE:
NOTE:
NOTE:
NOTE:
single-story buildings.
When a MAHM*ETA
be:
• 320 square inches for -024 models;
• 360 square inches for -030 and -036 models;
• 450 square inches for -042 thru -060 models
determine if the open area meets the minimum open area
listed above.
If a return air plenum is used, the return air grille should be
the opening, there must be adequate clearance around the
Installation
and controls in an insulated galvanized steel factory-
For ease in installation, it is best to make any necessary
place.
Refrigerant Metering Device
MAHM*ETA
heat pump application.
HORIZONTAL DRAIN PAN
(MUST BE REMOVED)
UP-FLOW /
DOWN-FLOW
DRAIN PAN
Figure 1.
Installation Clearances
Non-Ducted Return Closet Installation
bottom to form a return air plenum. It may also be installed
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