TM 5-3610-287-24
1-9. GENERAL (CONT)
Air is pulled into the ventilation system's two air conditioner/heater
units at inlet louvers where it is filtered by fiberglass filters. The air
is then either heated or cooled or distributed through the ducts and vents.
The air conditioner/heaters warm and cool the Section and provide
ventilation through a ceiling-mounted duct system with six vents. They are
designed to heat in ambient temperatures as low as -50F (10C) and to cool
in ambient temperatures as high as 120F (49C). The air conditioner/
heaters have a cooling capacity of 18,000 BTU/Hour and a maximum heating
capacity of 14,300 BTU/Hour.
The air conditioner/heaters are operated by control panels on the top
left corners of each air conditioner/heater unit. Each control panel has
switches for selecting heating, cooling, or ventilation; fan speed; and
temperature level. A control circuit breaker and a compressor circuit
breaker are also provided to protect the compressor and other electrical
components in the air conditioner/heaters. For additional information on
the air conditioner/heaters, refer to TM 5-4120-367-14.
For colder temperatures, supplemental heat is provided by wall heaters
in each expanding side. The wall heaters operate on 3,000 watts and 208
volts with 60 Hz alternating current. Temperature is controlled by a switch
on each wall heater grill.
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