Si30-408 Method of Troubleshooting
Troubleshooting 87
3.5 Structure and Operation of Solenoid Valve
Liquid Injection In order to prevent overheating operation of compressor, refrigerant is injected to compressor
suction port from liquid line reducing pressure through capillary tube.
The operation is as follows;
Plunger which is a slide part inside valve body lifts to make a flow of refrigerant when the coil is
energized, while when not energized, the plunger lowers to contact with valve seat due to spring
force, and shuts the flow of refrigerant.
Guide tube
Spring
Refrigerant pipe
Valve seat
Plunger
Solenoid valve coil