An air conditioner that contains a valve that allows it to alternate between heating and cooling.
Request of a file from a Web server.
A pump used to remove air and moisture from a refrigeration system at a pressure below atmospheric pressure.
Air flow into a space usually through walls and leaks around doors and windows.
The process of supplying or removing air, by natural or mechanical means, to or from any space. Such air may or may not have been conditioned.
Combination grille and damper assembly covering an air opening or end of an air duct.
National Fire Protection Association.
A moisture-impervious layer applied to the surfaces enclosing a humid space to prevent moisture travel to a point where it may condense due to lower temperature.
The abbreviation for cubic feet per minute, commonly used to measure the rate of air flow in an air conditioning system.
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