The compressor is the pump part of the system that moves the cooling solution, Freon, through the car air conditioning system. While moving through the system, the Freon, which is a gas and a liquid, is forced through different sized metal and rubber hoses and tubes, through what is called an expansion valve. This constant pressure and condensing and expanding of the Freon makes it get extremely cold within the metal and rubber hoses. As the Freon moves into the dash area of the vehicle, it is relocated into a metal tube system that is called the evaporator core.
This system is similar in function to a radiator, nonetheless, the extremely cold Freon within the interior of the metal tubes in the evaporator core cools the air that the air conditioner fan blows from the back of the dash to the front. This cooled air is then blown into the passenger area of the vehicle through the vents found in the dash.
The control on the dash that the driver or passenger can readjust doesnt control the temperature level of the evaporator core, rather, it manages how much air is blown across the core. The greater the amount of air, the more cold air that is pushed into the vehicles cab or passenger area. More advanced car air conditioning systems have a thermostat that automatically readjusts the fan and controls the temperature level of the passenger area. As the temperature level increases, the thermostat sends out a signal to the fan to accelerate and produce more cold air, decreasing the temperature level.
Automobile cooling systems additionally get rid of heat from the vehicle with the Freon that is returning from the evaporator core to the condenser. This is done at the front of the engine, usually near the radiator. The warmed Freon is transferred to the condenser, which resembles the evaporator core, however, instead of enabling the cold Freon to cool the air, it permits the hot Freon to release the heat to metal fins, then a fan blows this heat away from the engine. In this way, the car cooling system works as both a cooling and a heat removal system as the Freon circulates through the hoses and metal condenser Air Conditioner Repairs San Diego CA .