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HVAC/R

Across
Refers to the removal of refrigerants from equipment and collection in an approved recovery container
Portion of a main in which several branches are close together. Also, a single piece in which there are several fluid paths
Space existing between the cylinder head and the top of the piston after completion of compression stroke
A device used to convert electrical energy into mechanical energy
The passage of heat from one object to one other without warming the space between
The standard of measurement used for measuring the amount of heat required to raise the temperature of one pound of water by one degree (Fahrenheit)
A metering device that uses its internal diameter, length and pressure drop to determine its capacity and has a fixed regulation
A type of compressor used in vapor compression refrigeration cycles where a rotating impeller is the device which compresses the refrigerant vapor
Heat that when added to or removed from a substance causes a change of state
A shell device installed in the suction line of a HVAC system to prevent liquids from entering the compressor.
The plates on the ends of a electric motor which usually holds motor bearings.
Heat energy that causes a rise or fall in the temperature of a gas, liquid or solid when added or removed from that material
Refers to the reduction of used refrigerant contaminants using devices that reduce oil, water, acidity, and particulates
Down
State in which the gas pressure is lower than atmospheric pressure
A mixture made up of two or more refrigerants with similar boiling points that act as a single fluid.
Unit for measuring vacuum
Tube connected to the outlet of the evaporator to allow the diaphragm of the thermostatic expansion valve to disregard any pressure drop in the evaporator
Metric unit of linear measurement
The temperature difference between the starting and ending temperatures of a phase change within a system, exclusive of any subcooling or superheating.
Refers to the reprocessing of used refrigerants to ARI 700 specifications
Gases mixed with refrigerants that cannot be condensed at the same temperature and pressures as refrigerants
Rotating part of a device (fan, blower, compressor, or pump) that moves fluid
Device to detect gas leaks using the color changes of a flame in the presence of a halogenated hydrocarbon
Total amount of heat in one pound of a substance
Using highly sensitive microphones, these ac- or battery-powered devices “listen” for a high-pitched, inaudible sound caused by the turbulence that results when refrigerant escapes from a leak site.
A component in the basic refrigeration cycle that ejects or removes heat from the system
A The number of degrees a vapor is above its boiling point at a specific pressure.