507787-01C
mrcool.com
Page 4 of 22
Do not remove the cabinet knockouts until it has been
the installation.
conditions. Consider required clearances, space, routing
requirements for refrigerant line, condensate disposal,
information.
materials and vapors, such as gasoline,
that heating elements are at least 18 inches
instructions can result in death, explosion,
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.
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.
•
humid space.
•
If installed in an unconditioned space, sealant should
cabinet.
•
they exit the conduit opening. Sealant is required to
prevent air leakage into, and condensate from forming
inside of, the air handler, the control box, and on the
electrical controls.
•
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
control compartment.
bottom to form a return air plenum. It may also be installed
single-story buildings.
When a
MAHM*CTA
be:
•
320 square inches for -018 and -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
and controls in an insulated galvanized steel factory-
For ease in installation, it is best to make any necessary
place.
Refrigerant Metering Device
MAHM*CTA
expansion valve or an RFC device.