Service manual

M-9
3/2002
The parts listed below are not part of the sealed refrigeration system and are available
separately.
START CAPACITOR - P/N: 1112805
The start capacitor is used to increase power during the start. This additional
power will help get the compressor running in case there is any back pressure.
STARTING RELAY – INCLUDED IN ASSEMBLY P/N 513506066
The starting relay is mounted in the terminal box on the outside of the
compressor under the housing. When the compressor first starts up, the starting
relay closes and completes a starting circuit. When the compressor motor
reaches operating speed, the starting relay opens and breaks the starting circuit.
THERMAL OVERLOAD SWITCH – INCLUDED IN ASSEMBLY P/N 513506066
The thermal overload switch is mounted in the terminal box on the outside of the
compressor under the housing. If the compressor motor gets hot or draws too
much current, the thermal overload opens and breaks the starting and running
circuit of the motor. As the motor cools, the thermal overload closes, allowing the
compressor to resist.
REFRIGERATION CONTROL RELAY - P/N: 1079724
The refrigeration control relay is mounted behind the left side air dam. This relay
controls the compressor and condenser fan motor via the electronic controller.
TEMPERATURE SENSOR - P/N: 1079716
The temperature sensor is mounted in the inlet airflow of the evaporator. This
sensor monitors the air temperature and reports it to the electronic controller so
that the controller can operate the refrigeration system via the refrigeration
control relay.