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2. Evaporator
Evaporator effects: it makes the liquid refrigerant absorbs heat and is evaporated into
steam.
3. Condenser
A condenser: high-temperature high-pressure refrigerant vapor is condensed into
liquid, during condensation, the refrigerant vapor discharge heat, the heat is absorbed
by the heating medium.
4. Thermal expansion valve:
The refrigerant passes through the thermal expansion valve, the pressure from the
condensing pressure is reduced to the evaporation pressure, part of the refrigerant will
evaporate into gas in the throttling process.