HVACR
Heating, ventilating, air conditioning, and refrigeration.
REFRIGERANT
A fluid that absorbs heat at low temperatures and rejects heat at higher temperatures.
REFRIGERANT CHARGE (or, “charging the refrigerant”)
The procedure an HVACR technician performs to ensure that the system has enough of the right kind refrigerant for peak operating performance.
R-22
A refrigerant containing chlorine used in air conditioning systems. The EPA has mandated that R-22 cannot be manufactured after 2010 because it has been linked to the depletion of the ozone layer and global warming. Most commonly referred to by its trademarked name, Freon.
R-410A
The refrigerant that replaces R-22. It does not contain chlorine and is not hazardous to the environment
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