Components of air conditioner

Update:18 Jan 2020
Summary:

The air conditioner can be divided into two types accor […]

The air conditioner can be divided into two types according to the condensation form: water cooling type and air cooling type. According to the use purpose, it can be divided into two types: single cooling type and refrigeration heating type. No matter which type is composed of, it is composed of the following main components.

The main components of refrigeration system include compressor, condenser, evaporator, expansion valve (or capillary, supercooling control valve), four-way valve, multiple valve, one-way valve, solenoid valve, pressure switch, fuse plug, output pressure regulating valve, pressure controller, liquid storage tank, heat exchanger, collector, filter, dryer, automatic switch, stop valve, liquid filling plug and other components Cheng.
The main components of the electrical system include motor (for compressor, fan, etc.), operation switch, electromagnetic contactor, interlock relay, overcurrent relay, thermal overcurrent relay, temperature regulator, humidity regulator, temperature switch (for defrosting, freezing prevention, etc.). Compressor crankcase heater, water cut-off relay, computer board and other components.

The control system is composed of several controllers, which are:
Refrigerant controller: expansion valve, capillary, etc.
Refrigerant circuit controller: four-way valve, one-way valve, multiple valve, solenoid valve.
Refrigerant pressure controller: pressure shutter, output pressure regulating valve, pressure controller.
Motor protector: over current relay, thermal over current relay, temperature relay.
Temperature regulator: temperature position regulator, temperature proportional regulator. Humidity regulator: humidity level regulator.
Defrost controller: defrost temperature switch, defrost time relay, various temperature switches.
Cooling water control: water cut-off relay, water volume regulating valve, water pump, etc.
Alarm control: over temperature alarm, over humidity alarm, under voltage alarm, fire alarm, smoke alarm, etc.
Other controls: indoor fan speed controller, outdoor fan speed controller, etc.

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