Refrigeration and Air Conditioning Terminology

Front

Asphyxia

Back

Displacement of oxygen in a room by the denser refrigerant.

Front

Capillary Tube

Back

Passive throttle device comprised of a very small diameter long tube located upstream of the evaporator, that drops pressure in the system, causing refrigerant to flash.

Front

CFM

Back

Cubic Feet Per Minute, unit of measuring air velocity.

Front

Dehydrate

Back

To remove moisture from a system.

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EPA

Back

Environmental Protection Agency.

Front

EXV

Back

Electronic expansion valve, which throttles refrigerant located upstream of the evaporator.

Front

GWP

Back

Global Warming Potential.

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Mixture

Back

Blend of 2 or more components that do not have a fixed proportion to one another and that no matter how well blended, they still retain a separate existence.

Front

PPM

Back

Parts per Million, unit of measure.

Front

SDS

Back

Safety Data Sheet - contains vital information on chemical characteristics and first aid procedures for solvents, chemicals, and refrigerants.