Compressor: As the heart of the refrigeration cycle, the compressor draws low temperature and low pressure refrigerant steam from the evaporator, compresses it into high temperature and high pressure gas through the input of mechanical energy, and then sends it to the condenser.

Evaporator: In this process, the low-temperature and low-pressure liquid refrigerant absorbs the indoor air or the heat of the cooling medium and evaporates into low-temperature and low-pressure steam. This phase change process achieves the absorption of heat, thus achieving the purpose of cooling the indoor environment.

Condenser: High temperature and high pressure refrigerant gas in the condenser to release heat to the outside world (usually through air or water), in the process, the refrigerant from gas to liquid. This step is the key to heat emission.

Throttling mechanism (such as expansion valve or capillary) : The pressure of high-pressure liquid refrigerant drops sharply after throttling, and becomes a low temperature and low pressure liquid, ready to enter the evaporator again to absorb heat. The throttling process controls the amount of cooling that enters the evaporator, ensuring efficient cooling.

Four-way directional valve: Switches refrigerant flow between cooling and heating modes, enabling air conditioning to switch between summer cooling and winter heating.

Liquid reservoir: Store excess liquid refrigerant to ensure stable refrigerant flow in the system and prevent liquid shock and insufficient refrigerant supply.

Oil separator: Separates the lubricating oil from the mixture coming out of the compressor to ensure smooth lubricating oil circulation and extend the life of the compressor.

Solenoid valve: controls the opening and closing of refrigerant flow path, used for system protection or function switching.

Pressure switch: Monitors the system pressure, and when the pressure is abnormal (too high or too low), activates a protective mechanism, such as stopping or starting the fan, in case the equipment is damaged.

Stop valve: manual or automatic control of the flow of liquid pipes and gas pipes in the refrigeration system, easy to maintain and debug.

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