PFC Operation Manual
3. Operation
825160-00, revision B
53
Controls and Indicators, Continued
Control or Indicator
Function
Reset
Clears the timers in the syste
ust be pressed after any
em to
Button
m control. M
fault indicated on the System Control panel to return the syst
normal operation.
Unit O.K. LED
This is a green LED that is illuminated whenever the compressor is
in operation. The compressor normally runs continuously when the
refrigeration unit is on.
24 Vdc ON/OFF
Applies 24 Vac to the System Control board for conversion to
Vdc, which is used by
24
the control system.
High Voltage Box Lamp
h-
This is a white lamp that indicates that the transformer in the hig
voltage box is supplying 24 Vac to the system.
Main Power Switch
.
Applies incoming electrical power to the system
24 Vdc Circuit Breaker
On the rear of the high-voltage box. This is a manual reset circuit
breaker that protects the system control circuitry from drawing too
much current. Push the clear, flexible plastic dome on the switch to
reset it.
