I want to install the refrigeration system myself. What are the four stages of refrigeration? The four stages of refrigeration are: 1) Compression – The compressor squeezes the gas and increases its pressure. 2) Condensation – The high-pressure gas is forced into a coil, where it rapidly condenses into a liquid. 3) Expansion – The cooled liquid expands and becomes a low-pressure gas. 4) Absorption – This stage takes place in the evaporator, where the low-pressure gas absorbs heat from whatever needs cooling (the fridge, for example).

There are four stages of refrigeration: 1. Evaporation: In the evaporator, the low pressure and low temperature cause the liquid refrigerant to boil and turn into a gas. 2. Compression: The compressor squeezes the gas to increase its pressure. 3. Condensation: The high pressure and high temperature in the condenser cause the gas to turn back into a liquid. 4. Expansion: The expansion valve allows the liquid refrigerant to expand so that it can absorb heat from whatever it is cooling.