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The Difference Between Condenser Coils and Evaporator Coils

The condenser coils and the evaporator coils are two critical components that help cool and evaporate the air in your Clinton, TN air conditioning unit. Understanding the function is important when it comes to AC care and maintenance.

About Your Cooling System

Your cooling system — such as your central air conditioner — removes the heat from the inside of your home. This unit will use its refrigerant to transfer between a liquid state to a gas state and back to a liquid state to complete the cooling process. Both the evaporator coil and the condenser coil play an essential role in the refrigerant’s transfer process.

The Role of the Evaporator Coil

The evaporator coil is made of copper and converts the system’s refrigerant from liquid to gas. The refrigerant goes through an expansion valve and then moves into the evaporator coils. The expansion valve decreases pressure on the refrigerant. As a result, that turns the refrigerant into a gaseous state. During this process, the heat transfer occurs in the coils and creates a cool surface. The system’s blower moves air across the cool surface and throughout the interior of the home. Finally, the gaseous refrigerant is moved to the outdoor portion of the unit.

The Role of the Condenser Coil

The condenser coil is also made of copper and holds the refrigerant in its liquid form. The compressor increases pressure on the gas. This causes the gas to condense into a liquid state. As the refrigerant changes into its liquid state, the refrigerant releases the heat that it contains. The heat is dispersed outdoors. The liquid refrigerant then moves back inside and for the cycle to begin again.

The Coils’ Role in Your AC unit

Both the condenser coil and the evaporator coil are critical to the function of an AC unit. Both coils should be regularly checked to ensure that they are in working order. Contact Melton Heating and Air Conditioning today if you would like to schedule an HVAC maintenance or repair appointment for your unit.

Image provided by iStock

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