ELECTRICAL SYSTEM. (Cont'd)
Wall Receptacles (10). Provide grounded outlets for plug-in equipment.
Environmental Control Unit (11). Provides means of heating and cooling inside shelter.
Tent Light Receptacles (12). Provides means of hook-up for tent lights.
VENTILATION SYSTEM. Air from the environmental control unit is controlled by movable louvers located on
the main panel. Return air is filtered before entry into the environmental control unit. In vent mode, outside air is
drawn into the system for distribution. Detailed description of the environmental control unit is contained in
Operator's Organizational, Direct Support and General Support Maintenance Manual, Air Conditioner, Horizontal
Compact, 9,000 BTU/HR TM 5-4120-370-14.