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TM 55-8145-221-14&P
Change 1
0005 00-14
REFRIGERATED CONTAINER SYSTEM
CONTROLS AND INDICATORS – Continued
0005 00
REFRIGERATION UNIT OPERATING CONTROLS AND INDICATORS (Figure 8) – Continued.
INDICATOR (10) (DEFROST IN PROGRESS).
Indicates by illuminating when the refrigeration unit is operating in a defrost cycle.
INDICATOR (11) (REFRIGERATION CYCLE ON).
Indicates by illuminating when the refrigeration cycle is ON.
INDICATOR (12) (HEATING CYCLE ON).
Indicates by illuminating when the heating cycle is on.
RESET BUTTON (13) (COMPRESSOR OVERLOAD).
The reset button resets the motor starter if a fault has caused the compressor to overload. Reset button is pushed to reset the
motor starter.
DUAL PRESSURE CONTROL SWITCH (14).
The dual pressure control switch will open the electrical control circuit if a fault in the refrigeration system causes the
pressure of the refrigerant gas leaving the compressor to exceed 300 psi (2,070 kPa). The switch will automatically reset
after a high pressure fault.
DIFFERENTIAL OIL PRESSURE SWITCH (15).
The differential oil pressure switch will open the electrical control circuit if a fault in the refrigeration system causes the
compressor oil pressure to drop. The switch is reset by pushing the reset button.
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