Vocab 3 Flashcards
Subcool
The heat removed from the refrigerant beneath its condensing point.
Dry Nitrogen
Inert gas used for leak checking and brazing to prevent oxidation.
CFM (cubic feet per minute)
The volume of air being moved by the blower at a given point.
Dry Bulb
the temperature displayed on a thermometer does not include or factor in humidity
Wet Bulb
The measurement combining temperature and humidity, measured with a psychrometer.
Static Pressure
The amount of pressure exerted inside of the ductwork from the blower.
Accumulator
Stores any liquid refrigerant past the evaporator to prevent liquid floodback to the compressor.
R-22
is an HCFC refrigerant, commonly used in refrigeration from 1950 to 2010’s.
R-410a
is an HFC refrigerant, commonly used in refrigeration from mid-90’s-2023’s.
Blended Refrigerant
a refrigerant comprising 2 or more refrigerants. Azeotropic: blend of refrigerant of SIMILAR boiling points. Zeotropic: blend of refrigerants of DIFFERENT boiling points.