In general, using the principles of vapor compression refrigerant to a high temperature and pressure before the transfer of heat ออกเพื่อ cause condensation and reduce the pressure to change the status of the refrigerant compressor compressor again used to enter a job to the system.Possessed satisfactory quality application to second process and application with the system
.Air conditioning by the refrigerant of low temperature pick up heat from the space to do
cold refrigerant used included air,. Water, ammonia, sulfur dioxide
.
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