SECTION III PRINCIPLES OF OPERATION
1-13. ELECTRICAL SYSTEM
The refrigeration unit requires electrical power to operate A power supply cable (not supplied) must be connected
between the enclosure assembly and a source of electrical power. The circuit breaker receives power from the electrical
cable assembly and distributes it to the various components and circuits m the control box assembly. The control box
assembly houses various automatic and manual components which control the compressor, and ac motor The
compressor causes refrigerant flow through the refrigeration system, and the ac motor drives the air handling system.
Figure 1-2. Electrical System