TM 9-4110-258-13
SECTION III PRINCIPLES OF OPERATION
1.13 ELECTRICAL SYSTEM.
The refrigeration unit requires electrical power to operate. An electrical cable assembly is provided for connection to a
source of electrical power. The circuit breaker receives power from the electrical cable assembly and distributes it to the
various components and circuits in the control box assembly. The control box assembly houses various automatic and
manual components which control the compressor, electrical heaters, and ac motor. The compressor causes refrigerant
flow through the refrigeration system, the electric heaters provide heat in low ambient temperature, and the ac motor
drives the air handling system.
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