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TM 9-4120-389-14
Section II EQUIPMENT DESCRIPTION
1-7.
PURPOSE. CAPABILITIES, AND FEATURES.
a. Purpose of Model 3864 Air Conditioner. The Air Conditioner is designed to circulate, ventilate, cool or
heat, and to filter air in rooms or enclosures.
b. Capabilities and features
(1) Provides a maximum of 36,000 BTU/HR of cooling or 31,200 BTU/HR of heating.
(2)Has two stages of heat.
(3) Provides source of outside (fresh) ventilation air.
(4) Is self contained in a single cabinet that is ideally suited for van, shelter, or room installations.
(5) Operates in environmental conditions from tropic to arctic.
(6) Is fully portable.
(7) Has connection point for a CBR (chemical, biological, radiological) filter.
(8) Has alternate power input connection locations to provide for a variety of installations.
(9) Designed for low-noise level operation.
1-8.
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (Figure 1-2).
FABRIC COVER (1) - Shown in stowed (operational) position. When rolled down and snapped in position it
protects the rear (exposed) surface of the unit.
EVAPORATOR OUTLET LOUVER (2) - Adjustable louvers allow directional control of conditioned air.
MIST ELIMINATOR (3) - Prevents condensate (water) from being blown from the coil into the room or
enclosure.
HEATER ELEMENTS (4) (HR1 through HR6) - Consists of two banks of three elements each. Only one
bank operates in the LO HEAT mode. Both banks operate in the HI HEAT mode.
1-3
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