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TM 9-4120-389-14
4-5. INSTALLATION SITE PREPARATION
a. General. The air conditioner is designed so that it is adaptable to a variety of installation arrangements.
For installation into small shelters, refer to MIL-HDBK-116. Most typical installations are made by preparing an
opening in an exterior wall of the room or enclosure to be conditioned and positioning the air conditioner so that
the front of the cabinet is inside the room or enclosure and the back outside. Alternate installation may be
made with the entire cabinet either inside or outside the conditioned area. The following are minimum
requirements for all installations:
(1) A relatively level surface capable of bearing the weight of the air conditioner on which to set the
base. To insure proper condensate drainage, the surface should be level within 5 degrees from front to back
and side to side. See figure 4-2 for installation dimensions.
(2) An unobstructed flow of air from outside the conditioned area to the inlet and outlet of the
condenser.
(3) An unobstructed flow of air from outside the conditioned area to the fresh air damper.
(4) An unobstructed flow of air from inside the conditioned area to the conditioned air intake and
discharge.
4-5
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