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Definition of HVAC abbreviation from the Oxford Advanced Learner's Dictionary

HVAC

abbreviation
 
/ˈeɪtʃvæk/
 
/ˈeɪtʃvæk/
(especially US English)
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  1. heating, ventilation and air conditioning
    (used to refer to a system that can heat or cool a building or allow fresh air to move around)
    • a new, efficient HVAC system
previously
adverb
 
 
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B1
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