Definition
A condenser coil is the finned outdoor heat exchanger inside a condensing unit where hot, high-pressure refrigerant gives up the heat it absorbed indoors. The condenser fan draws outdoor air across the aluminum fins and tubing, and the refrigerant condenses from vapor back into liquid as it cools. A heat pump's outdoor coil serves this role in cooling mode.
Also called: Outdoor coil
Why it matters to you.
Kentucky pollen, cottonwood, grass clippings and fall leaves load outdoor coils, and a matted coil forces the system to run at higher pressures and use more electricity through humid July and August weather. Cleaning the condenser coil is a standard part of a spring cooling tune-up in Central Kentucky.
Practical guidance.
With the system off at the thermostat, homeowners can clear debris from around the cabinet and gently rinse loose dirt from the coil with a garden hose, never a pressure washer, and without bending the fins. Chemical coil cleaning and fin straightening belong in a professional tune-up.
About this definition
Written by the Feistritzer Heating & Air Conditioning team — family owned and operated in Danville since 1976, Kentucky HVAC license M02584. Definitions inform; a whole-system diagnosis in your home decides.