Do You Know The 7 Components Crucial For Air Conditioner Function?

A/C, Air Conditioner, Air Filter, Blog, Cooling, HVAC, OH, Ohio, Thermostat, Tips & Tricks

A home air conditioner is made up of a number of components that work together to ensure that your house stays cool and pleasant. Have you ever wondered what makes up your home air conditioner? In most cases, most residential air conditioners may be almost unnoticeable if all parts are functioning correctly. However, knowing about these components can help you understand how your air conditioning system works and help you keep it in good working order for years to come. Our HVAC experts at Eastland Heating & Cooling thoroughly cover everything in this article! 

Evaporator Coil 

All of the heat from your house is absorbed by the evaporator coils in your air conditioner. The refrigerant in the evaporator coil is captured by copper tubes that are then depressurized by the expansion valve. As air passes over the cold coils, they absorb heat rather than deliver it into your home’s interior. To transfer heat from the condenser coils, a condenser fan blows air across them. 


The temperature of refrigerant rises when it is compressed as a result of the compressor in the air conditioner. When refrigerant is compressed, it heats up according to the combined gas law, which includes Gay-Lusaac’s Law, Charles’ Law, and Boyle’s Law. As a result, the pressure is increased by the compressor so that refrigerants can achieve a higher temperature than outdoors to remove heat from the home. 

Condenser Coil 

Unlike evaporator coils, condenser coils are generally found in outdoor units. The refrigerant is absorbed by the evaporator as it passes through the condenser coils. Condenser coils are used to transfer heat from an interior space to the outside environment via airflow across them. When the gas temperature falls, it changes phase from a gas to a liquid state using expansion valves that open when the pressure drops. 

Expansion Valve 

Even after it has cooled, the refrigerant is still far too hot to enter the condenser, despite having done so. The expansion valve is critical because it regulates the refrigerant’s pressure. As a result, the pressure in the expansion valve is reduced; then, because of this change of state from liquid to gas, the refrigerant changes state once again and becomes cool enough to re-enter the evaporator coil. 

Air Filter 

Filters in the air purification process remove dust, dirt, bacteria, and other particles from the air. There are a variety of air filters to pick from that can help you meet your indoor air quality objectives. If you want your HVAC system to operate effectively and the air in your house to be kept clean, change your air filters every 1 to 3 months. 


You may wonder what refrigerant is since it’s been brought up several times before. Refrigerant is an essential element of air conditioning systems because it moves heat from the interior of your house to the outside environment while cooling it. In addition, refrigerant is ideal for keeping your home cool since it can be changed from a liquid to a gas at precise temperatures. 

The refrigerant enters your air conditioner’s pipes and copper coils, joining the indoor and outdoor sides. The inside equipment absorbs heat, transforming the refrigerant from a gas to a liquid. The refrigerant is then carried away from the structure in order to remove heat. As long as your air conditioner is switched on, the cycle will continue until your home is cool and pleasant. 


Thermostats are the control center for your air conditioner since they maintain the ideal comfort levels in your home. When the temperature in your house isn’t where you want it, your thermostat sends a signal to turn on your air conditioner. The sensitivity of your thermostat to temperature and humidity varies depending on personal preferences. To avoid disrupting your air conditioner’s home comfort settings, place your thermostat somewhere out of the way that is not exposed to sunlight. 

It’s never been easier to understand your residential air conditioner! If you still have difficulties understanding your home cooling equipment and want professional assistance, give Eastland Heating & Cooling a call right now! Call us at (614) 861-5203 today or fill out an online appointment form by clicking here!  

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