NOT KNOWN FACTUAL STATEMENTS ABOUT HEATING AND AIR CONDITIONING SERVICE

Its purpose is to deliver thermal consolation and suitable indoor air good quality. HVAC technique style can be a subdiscipline of mechanical engineering, dependant on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the sector's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped,