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Additional
HVAC
English Wikipedia - The Free Encyclopedia
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HVAC
HVAC
(
heating
,
ventilating
, and
air conditioning
; also heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. Its goal is to provide
thermal comfort
and acceptable
indoor air quality
. HVAC system design is a subdiscipline of
mechanical engineering
, based on the principles of
thermodynamics
,
fluid mechanics
, and
heat transfer
.
Refrigeration
is sometimes added to the field's abbreviation as HVAC&R or HVACR, (heating,ventilating and air-conditioning & Refrigeration) or ventilating is dropped as in HACR (such as the designation of HACR-rated
circuit breakers
).
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