HVAC Trade Term Matching Worksheet

A device used to condition and circulate air as part of an HVAC system.

• Air Handler

• Thermostat

• Humidifier

• Dehumidifier

The movement of heat from one substance or material to another.

• Heat Transfer

• Conduction

• Radiation

• Convection

A series of pipes in an air conditioner where the refrigerant absorbs heat and evaporates, cooling the indoor air.

• Evaporator Coils

• Condenser Coils

• Compressor

• Expansion Valve

Heating, Ventilation, and Air Conditioning system.

• HVAC

• HVC

• HAC

• HVA

A device that automatically regulates temperature or activates a device when the temperature reaches a certain point.

• Thermostat

• Barometer

• Hygrometer

• Anemometer

A substance used in a refrigeration cycle that undergoes a phase change from a liquid to a gas and back.

• Refrigerant

• Coolant

• Antifreeze

• Lubricant

A device in refrigeration and air conditioning systems that reduces the pressure of the refrigerant.

• Expansion Valve

• Compressor

• Condenser

• Evaporator

A pipe that carries condensation from air conditioning systems outside or to a drain.

• Drain Line

• Vent Pipe

• Water Supply Line

• Gas Pipe

A process where refrigerant is evaporated in an isolated environment to absorb heat, then compressed and condensed to release that heat.

• Refrigeration Cycle

• Combustion Process

• Photosynthesis

• Evaporation

Part of an air conditioner where the refrigerant releases the heat it has absorbed to the outside air.

• Evaporator

• Condenser

• Compressor

• Expansion valve