Air conditioning 101

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  Now comes the "Low side" or low pressure side. This is the part of the system that operates after the restriction device. The high side is developed by the  restriction device , but after the restriction you have a lower pressure. This low pressure is created back at the compressors suction side or "Low side". After the restriction the liquid moves into the evaporator which is before the compressor. The liquid Refrigerant enters the evaporator and evaporates. Now  when this happens, the heat is absorbed by the liquid as it evaporates.The Refrigerant then turns back into a gas due to the heat it picks up as it leaves the evaporator, then it gets pulled or "sucked" into the compressor , which is where the term "low side" or "suction Side"  is  from.
 
  Now comes the "Low side" or low pressure side. This is the part of the system that operates after the restriction device. The high side is developed by the  restriction device , but after the restriction you have a lower pressure. This low pressure is created back at the compressors suction side or "Low side". After the restriction the liquid moves into the evaporator which is before the compressor. The liquid Refrigerant enters the evaporator and evaporates. Now  when this happens, the heat is absorbed by the liquid as it evaporates.The Refrigerant then turns back into a gas due to the heat it picks up as it leaves the evaporator, then it gets pulled or "sucked" into the compressor , which is where the term "low side" or "suction Side"  is  from.
 
  A reciever/ dehydrator  is placed into the system low side to absorb any moisture in the system and it has a chemical inside called a dessicant which is there to keep corrosion in the system in check.
 
  A reciever/ dehydrator  is placed into the system low side to absorb any moisture in the system and it has a chemical inside called a dessicant which is there to keep corrosion in the system in check.
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In review , it should go as follows, The compressor pumps refrigerant , creates pressure, which flows to the condenser, where a fan cools it, resulting in the compressed gas turning to a liquid. The liquid then flows throught the restriction device, into the evaporator where it does just that...it evaporates. It picks up heat when it does, creating the desired cooling effect.The gaseous refrigerant then flows to the compressor where it is pressurized and passed to the condenser and the cycle begins all over again.
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Also as a side note, when you see water running from an AC system it is running from the evaporator unit. It is due to the cooling effect of the freon evaporating inside the system.
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This cooling causes the condesation of moisture in the Air as it passes through the finned part of the evaporator for cooling the inside of the car.When warm moist air is cooled it condenses moisture...hence the water. Kind of like a rain cloud mentioned earlier.
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I only briefly mention of  all the parts of the AC system to keep this article as fundamental as possible . It is solely intended to help one understand the basic priciples of an air conditioner.

Revision as of 14:48, 2 June 2013

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