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

Aug 5, 2022 | A/C, Air Conditioner, Air Filter, Blog, HVAC, Kettering, Kettering-Oakwood, Oakwood, OH, Ohio, Thermostat, Tips & Tricks

Air conditioners are a necessity, especially during the warmer seasons. Without your home cooling equipment, summer would be miserable. But have you ever wondered what components it takes to achieve those comfortable temperatures in your home during the hot summers? Well, you came to the right place! Our home cooling experts at Kettering-Oakwood Heating & Air explain the most crucial components in your air conditioner and how they function.  

Evaporator Coil 

Typically, evaporator coils are placed within an air conditioner’s air handler. The objective of the evaporator coil is to absorb heat from the passing air and then send it outdoors. Copper is used in evaporator coils because of its thermal conductivity. Copper is more efficient and easier to maintain than aluminum, which is utilized in many other components. However, you must remember to clean and maintain your evaporator coils on a regular basis because accumulated filth and dust may impair their efficiency over time. 


When refrigerant is compressed because of the air conditioner’s compressor, its temperature rises. When the refrigerant is condensed, it warms up according to the combined gas law, which incorporates Gay-Lusaac’s Law, Charles’ Law, and Boyle’s Law. As a result, the compressor increases pressure, and the refrigerant is heated higher than outside temperatures to remove heat from the home. 

Condenser Coil 

Condenser coils are typically placed in outdoor units. The refrigerant is absorbed by the evaporator as it goes through the condenser coils. Condenser coils are utilized to transfer heat from the interior of your home 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 

Despite having entered the condenser, even after it has cooled, the refrigerant is still far too hot to travel back into the evaporator coils. The expansion valve is important since it controls the refrigerant’s pressure. As a result, because of this change in state from liquid to gas, the refrigerant becomes cool enough to re-enter the evaporator coil because of its pressure being reduced by the expansion valve. 

Air Filter 

Air filters in the air conditioning system remove dust, dirt, germs, and other particles from the air. There are various types of air filters to select from that can help you fulfill your indoor air quality targets. Change your air filters every 1 to 3 months if you want your HVAC system to operate properly and the air in your home to be kept clean. 


You might be wondering what refrigerant is since it’s been discussed a lot. Refrigerant is an essential component of air conditioning systems because it absorbs heat from the interior of your home and transfers it to the exterior environment while cooling it. In addition, the refrigerant may be changed from a liquid to a gas at specific temperatures, making it ideal for keeping your home cool. 

The refrigerant goes into your air conditioner’s pipes and copper coils, joining the indoor and outdoor equipment. Heat is absorbed by the interior equipment, turning the refrigerant from a gas to a liquid. The refrigerant is then whisked away from the building in order to remove heat. The process will continue until your property is cool and comfortable as long as your air conditioner is switched on. 


Thermostats are the control center for your air conditioner since they keep your house at the proper temperature. Your thermostat sends a signal to turn on your air conditioner when the temperature in your home does not meet your requirements. Personal preferences determine the sensitivity of your thermostat to temperature and humidity. To prevent inadvertent adjustments, place your thermostat somewhere that is not visible to sunshine. 

Never before has it been so simple to comprehend your residential air conditioner! If you still have difficulties understanding your home cooling equipment and would want expert assistance, contact Kettering-Oakwood Heating & Air right now! Call us at (937) 502-3842 today or fill out an online appointment form by clicking here