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How do Condenser and Evaporator Coils Work 1/29/2020 Condenser and evaporator coil are considered to be the two important parts of your air conditioning system. The inner operations of your AC unit depend upon these two components only. Given below are the details about the operation and working of the AC condenser and evaporator coil of your HVAC system:   Evaporator coil: The evaporator coil of your AC unit is also known as the evaporator core. It is a part of your AC unit from where the refrigerant starts to absorb the heat. This is the same place where the cool air comes out of the AC unit. The coil is located inside the air handler. These coils are made from steel, copper or aluminum. These evaporators comprise tubes that are bent into U-shape and are further set in panels. As the air conditioner runs, the compressor pulls cold and low-pressure liquid refrigerant by the way of the tubing present in the evaporator coil. The refrigerant, before, entering the coil passes via the expansion valve. The valve helps to relieve pressure from the liquid refrigerant that helps to cool it rapidly. The liquid refrigerant then leaves the expansion valve cold. This then absorbs the heat from the air. The expansion valve also helps to control the flow of refrigerant to the evaporator. The expansion valves which are more advanced can help to control the flow in order to accelerate the overall energy efficiency of the HVAC system. As the refrigerant begins to flow, the blower fan then draws hot room air over the evaporator coil. The water vapor present in the warm household air when hits these cold coils, they get condensed into liquid form and then drip down into the condensate pan. This helps to drain the water. Thus, your evaporator coil is able to reduce humidity in the home.                                                                                                                                                                            Condenser: Air condenser and evaporation coil work together to make your home cool. Thus, an evaporator coil wouldn’t be of great use if the condenser coil is not functioning properly. The condenser of the AC is present in the large unit located outside the house. The unit comprises many components including condenser tubes and fins, a fan, copper tubing, compressor, switches, as well as valves. When the refrigerator is able to absorb heat from inside your home, it then travels outside through a copper tube and reaches the condenser unit respectively. The low-pressure and warm refrigerant then enters the compressor after which the compressor begins to pressurize the refrigerant, thereby transforming it into a high-pressure hot gas. The gas then leaves the compressor and flows smoothly into the coils. The refrigerant then releases much of the heat earlier absorbed from your home. The fan located on the top of the outdoor unit then begins to blow the air over these coils after which the refrigerant loses heat inside. The many coils present inside the condenser unit then increase the amount of time to release the heat which was carried out of the home by the refrigerant. Upon the cooling process, the refrigerant then changes from a hot gas to hot liquid. It then flows back via a copper tube into the home as well as an expansion valve present in the indoor unit near the coil. This is how the AC condenser and evaporation coil work together for the smooth operation of your air conditioner.