Say What? Defining Common Air Conditioning Terms

You have an Arizona air conditioning system that keeps you and your family cool during hot Arizona summers, but have you ever thought about how it works or the many parts involved in keeping the system running?

Luckily, if your Arizona air conditioning system goes on the fritz, you can call the experienced technicians at Chas Roberts Air Conditioning & Plumbing – the leaders in air conditioning repair in Phoenix – to get the system quickly working again. Your technician will be able to explain to you the problem and how it will be fixed.

To make sure you fully understand what’s going on, here are some common air conditioning terms you may want to know:

Air handler: This is the indoor part of an air conditioner or heat pump that moves cooled or heated air throughout the ductwork of your home.

Compressor: The compressor is the part of an outdoor air conditioner or heat pump that compresses and pumps refrigerant to meet your home’s cooling requirements.

Condenser Coil: The outdoor portion of an air conditioner or heat pump that either releases or collects heat, depending on the time of the year.

Damper: Dampers regulate air flow by directing air to the areas that need it most. The damper is located in the ductwork.

Evaporator coil: The evaporator coil’s job is to absorb heat inside the house.

MERV rating: The Minimum Efficiency Reporting Value (MERV) rating measures the efficiency of your air conditioning system. It describes the size of the holes in the filter that air passes through. The smaller the holes in the filter, the higher the MERV rating and the higher the efficiency.

Refrigerant: This chemical produces a cooling effect while expanding or vaporizing. In an effort to reduce consumption of R-22, or Freon, the U.S. government required that air conditioning systems manufactured after 2010 use the more environmentally friendly R-410A refrigerant instead of Freon.

Variable speed motor: This motor automatically adjusts the flow of warm or cool air to create the most comfortable environment.

Now that you know all the important parts to your air conditioning system, you’re ready for a visit from a Chas Roberts technician to take care of your air conditioning repair in Phoenix. Contact Chas Roberts today! Visit or call (602) 943-3426 in Phoenix, (520) 618-1884 in Tucson or (505) 264-7257 in New Mexico.