GLOSSARY
Acronyms, abbreviations, and technical terms used throughout this catalog are defined below. ACRONYMS AND ABBREVIATIONS
AHRI
HVAC
Air Conditioning, Heating, and Refrigeration Institute
Heating, Ventilation, and Air Conditioning
IT
American Society of Heating, Refrigerating, and Air-Conditioning Engineers
Information and Technology
ASHRAE
kW
Kilowatts
BHP BTU
Brake Horsepower
kWh MBh PSIA PSIG
Kilowatt-hours
British Thermal Unit
1,000 Btuh
BTU/HR
British Thermal Unit Per Hour
Pounds Per Square Inch Absolute
CAGI CFM DOE EER
Compressed Air and Gas Institute
Pounds Per Square Inch Gauge
Cubic Feet Per Minute
SCFM
Standard Cubic Feet Per Minute
Department of Energy
VFD VSD
Variable Frequency Drive
Energy Efficiency Ratio
Variable Speed Drive
HP
Horsepower
GLOSSARY TERMS
Air Compressor A device that uses mechanical energy to compress gases, such as air, to a higher pressure. Air- Entraining Nozzle Both handheld and fixed air nozzles use compressed air to clean or dry things. In comparison, an air-entraining nozzle uses less compressed air to do the same work by grabbing or entraining surrounding atmospheric air, making it a more efficient option. Air Motor A device in which the pressure of confined air causes the rotation of a rotor or the movement of a piston. Amp Short for ampere and in plural is called amps. Aspiration The act of removing a fluid from a cavity. Axial Fan Fan that moves air in the general direction of the axis about which it rotates. Blow Molding A type of plastic extrusion where molten plastic is extruded through a die head to form a hollow tube and dropped into a mold. The tube of plastic is then inflated. The inflated plastic cools in the mold, and the mold is opened to reveal the plastic part. Blower A blower is a type of air compressor that delivers moderate pressure air. British Thermal Units (BTUs) A measurement of energy. The amount of heat required to raise the temperature of one pound of water 1 degree Fahrenheit at or near 39.2 degrees Fahrenheit at standard atmospheric pressure.
British Thermal Units Per Hour The number of BTUs consumed or generated in a one-hour period. Burner Efficiency The percentage of heat input to the burner that is used for useful work. Burner Heat Rate The rate of heat at which a burner is specified to operate, typically measured in BTU/HR. Centrifugal Air Compressor A type of dynamic air compressor where a continuous flow of air has its velocity raised in an impeller rotating at a relatively high speed. Centrifugal Fan or Pump Fan or pump where the air or water enters the impeller axially and leaves it substantially in a radial direction. Coalescing Filter A compressed air filter that removes water and aerosols by collecting and joining particulates and removing them from the compressed air system. These can become saturated with liquid in operation thus making mist eliminators a better option. Compressed Air and Gas Institute (CAGI) Data Sheet A data sheet that provides a standardized format for manufacturers to provide basic information and performance of a compressor. See cagi.org/ performance-verification/data-sheets.aspx for more information. Compressed Air Operated Vortex Coolers A device that has no moving parts but separates compressed air into cold and hot air streams and is often used for cooling cutting tools. Compressed Air Storage Storage of compressed air that can be used to meet demand fluctuation and limit on/off cycling of constant speed air compressors.
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