Glossary of Heating, Ventilation and Air Conditioning Terms

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Capacity

The output or producing capability of a piece of cooling or heating equipment. Cooling and heating capcity are normally referred to in BTU'S.


Capillary Tube

A refrigerant control consisting of a small diameter tube which controls flow by restriction. They are carefully sized by inside diameter and length for each particular application.


Central Air Conditioner

Central air conditioning systems have essentially two parts: an evaporator that removes unwanted heat from the air and transfers it to a refrigerant; and an condenser that removes unwanted heat from the refrigerant and transfers that heat outdoors. The primary component of a condenser is typically the condenser coil, through which the refrigerant flows.


CFM
Stands for Cubic Feet per Minute. A measurement of airflow that indicates how many cubic feet of air pass by a stationary point in one minute. The higher the number, the more air is being forced through the system.
Circuit Breaker

A device that opens an electric circuit when an overload occurs.


CLF

Cooling Load Factor


Compressor

The compressor squeezes the molecules of the refrigerant gas together, increasing the pressure and temperature of the refrigerant.


Condensate

The moisture collected on an evaporator coil.


Condenser Coil

Part of the outdoor portion of a split-system air conditioner or heat pump. By converting refrigerant that is in a gas form back to a liquid, the coil sends heat carried by the refrigerant to the outside. Also referred to as an Outdoor Coil.


Condensing Unit

The outdoor component of a cooling system. It includess a compressor and condensing coil designed to give off heat. It also changes the vapor gas mixture back to a liquid for return to the system.


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