Automobile air conditioning systems are a closed pressurizedIt consists of a compressor, condenser, accumulator that is sometimes called a receiver dryer, and an expansion valve or an orifice tube and finally an evaporator. These components work together in your automotive ac system to create an output air temperature in the low 40° Fahrenheit range. When you boil it down, the most important function of the automobile air conditioning system is to turn a high pressure Freon to a low-pressure refrigerant and this is done by the orifice tube or theIn the picture to the right the low pressure side is highlighted in blue and the high pressure sideMost systems today use the orifice tube type systems. will find some vehicles that use an expansion valve instead of theAn example would be heavy equipment, large trucks and a lot of Chrysler vehicles use the expansion valve. will have either one or the other but not both. In a basic air-conditioning system, the heat is stored and

transferred in the following steps. The refrigerant leaves the belt driven clutch operated compressor as a high pressure, highIt is moved towards the condenser, where the vapor becomes a high pressure, high temperature liquid. from a gas to a liquid by the heat that is removed by the condenser component and the condenser fan that blows across it.The r134a stop leak freon pictured to the right should only be used on a system with a very slow leak on the low side. It will not seal large refrigerant leaks. sure to follow the directions that come with the kit carefully so you don't make things worse. the condenser the refrigerant is then circulated to the accumulator or receiver dryer where moisture and contaminants are removed. where most of the Freon is stored until it is needed. expansion valve or orifice tube controls the flow of the refrigerant into the evaporator that is mounted inside the passenger compartment. It's this step that converts the freon from a high pressure to a low one.

This is where the auto AC system is the coldest. In fact if this step is not controlled properly the evaporator can turn into a block of ice. Many manufacturers place a probe on or near this part so they can monitor exactly how cold the evaporator coils are.large portable ac unit may have heard people talk about low out put of cold air due to ice andhow much is 4 ton ac unit not really understand why. house ac unit calculatorYou would think ice is a good thing on a hot day! If the evaporator freezes airflow through it is actually reduced and along with it the air temperature from the ducts is not as cool as it could be. Heat absorption from the air inside the passenger compartment by this low pressure Freon causes the liquid to vaporize and move out of the

evaporator as a gas. The refrigerant then returns to the compressor as a low-pressure gas, where it is compressed into a high-pressure vapor as the system starts another cycle. note when you understand this flow and operation of the automobile air conditioning system you have also learned how your home ac works as well To understand the operation of the five major components of an automotive A/C system remember that the air-conditioning unit is dividedThe high side of the system and the low side of theThe high side of the system referrers to the parts that are under high pressure and highThese components are identified by smaller diameter tubing and very hot to the touch components. The low side of the system referrers to low pressure components that are larger in diameter as far as the hoses and tubing and these components will be ice cold to theThis is very handy for diagnosis. If you have a high-pressure line that is warm and then turns cold in line or even a

frozen spot, this will indicate that there is a clog in this component. page was meant as an overview for a better understanding of your carsPlease return to the Main page that will provide more information on diagnosis and repair and a more detailed description of individual components of your Give this resource page a bookmark or share with a friend having car problems. Then explore some more air conditioning information. If you would like diagnostic tree charts and component locations for your specific AC system, visit my page aboutThe homepage is up next and provides a run down of the auto repair content you can find on this automotive website. You can also learn more about the mechanic that thinks you can perform your own Premium Durability and Efficiency We create a complete line of residential and commercial air conditioning and heating equipment at our modern, high-technology factories in Houston, Texas; Click Here to ​download EnergyGuide ​​Labels.

Select the type of residential product on the AHRI Directory of Certified Product Performance, search for the model number(s) of your choice, and download the EnergyGuide label associated with the model(s) once the search results have been generated. Speed EMC Condensor Fan Motor Heavy-duty stainless-steel dual-diameter, tubular heat exchanger Began testing in 1995 with over 2.5 million cycles completed to date Wrinkle-bend technology minimizes manufacturing stress and promotes turbulence-aiding efficiency of heat transfer Tubes solidly joined using a crimping process Thermal expansion ensures a solid seal at joints Optimized combustion air velocity and storage of six fault codes Factory-installed coil and ambient temperature sensors Internal factory-installed, inverter tuned thermal expansion valve for cooling and heat pump applications Auto configuration of the airflow and tonnage in communicating mode ComfortNet™ Communicating System compatible

Variable-speed ECM blower motor Provides constant CFM over a wide range of static pressure conditions independent of duct system; provides low CFM for efficient fan-only operation Fault recall of six most recent faults Provides adjustable low CFM for efficient fan-only operation Improved humidity and comfort control Built-in compatibility with multi-stage heat pump and cooling applications Heat pump balance point Continuous fan speed (high, med, low) Commercial / residential selection option Humidification control & type selection with wireless option Window frost / condensation protection Multiple commercial dehumidification options with internal relief valve Variable-speed ECM indoor blower motor Copper tube / aluminum fin coil lubricated condenser fan motor Indoor comfort in your home is about more than just adjusting the temperature on the thermostat. Many homeowners overlook the need for necessary components and systems that can cleanse and improve the indoor air you breathe.