15 August 2017

What does HVAC stand for

Full form of HVAC is Heating Ventilation and Air Conditioning.

HVAC can stand for a climate-control mechanism for providing thermal comfort and acceptable indoor air quality and regulate the humidity and temperature in a living environment.

It is a sub-discipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, heat transfer and sometimes refrigeration and air conditioning. 

This technology is used for indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality.

There are three types of setting done in HVAC :

Full Heat Setting :

Maximum airflow is directed through the heater core by the blend door to deliver the most heat possible to the main upper vents. 
So in this setting operator has demanded full heat.

Economy Mode Setting :

Maximum airflow is directed around the heater core to allow filtered air at ambient temperature to enter the cabin through the main upper vents. 

Max A/C Setting :

In this setting, the HVAC system takes air from the cabin that has already been cooled once and cools it again instead of trying to cool hot ambient air.
To get the most cooling power in this setting the operator has selected max A/C.