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The basic refrigeration cycle.
The Refrigeration cycle at it’s most simple.
1
) Starting at the compressor the refrigerant is pumped into the “Hot gas line”
2
) It moves into the Condenser Coil and cooled by outside air blown over the coil by the condenser fan motor.
3
) The refrigerant is hot, high pressure gas, as it cools (as the heat in the refrigerant is rejected into the outside air) it condenses into a high pressure liquid.
4
) Refrigerant leaves the condenser coil. Moves to the inside unit via the Liquid line.
5
) The liquid refrigerant enters the evaporator coil through a metering device such as a TXV (Thermostatic Expansion Valve.) The TXV reduces the refrigerant pressure, causing it to flash into a gas.
6
) In the Evaporator Coil the refrigerant picks up the heat from the air that passes over the coil, blown by the indoor blower. The low temperature of the coil also causes water vapor to be removed and reduces the humidity in the conditioned space.
7
) The refrigerant leaves the evaporator coil as a low pressure gas, and transmits the sensible heat from the inside to the outside.
8
) As the refrigerant enters the compressor it returns oil that has circulated as well as having a cooling effect on the compressor. Entering the compressor the cycle repeats itself.
In this over simplified explanation the heat and moisture from the conditioned space is transferred and then rejected outside.
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