Control of temperature, humidity, flow, and composition of air by using heating and air-conditioning systems, ventilators, or other systems to increase the comfort of people in an enclosure.
Related Terms |
ADJUSTABLE DIFFERENTIAL
A means of changing the difference between the control cut-in and cut-out points.
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ALKALINE BOIL-OUT
Employed to remove oil and grease deposits from heating surfaces.
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ANNEAL
To soften by heating and allowing to cool slowly.
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AIR COOLER
A factory-encased assembly of elements whereby the temperature of air passing through the device is reduced.
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ACTION
Refers to the action of a controller. It defines what is done to regulate the final control element to effect control.
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SHED MODE
A method of demand control that reduces kW demand through shedding and restoring loads.
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AIR INFILTRATION
The leakage of air into a room through cracks in doors, windows, and other openings.
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CLEAN ROOM
A facility or enclosure in which air content and other conditions (such as temperature, humidity, and pressure) are controlled and maintained at a specific level by special facilities and operating processes and by trained personnel.
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OUTDOOR AIR
Air taken from outdoors and, therefore, not previously circulated through the system.
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SPREAD
The divergence of the air stream in a horizontal or vertical plane after it leaves the outlet.
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