HVAC is Heating, Ventilating and Air Conditioning system. HVAC is the central unit to which AHU is connected. AHU is only a part of HVAC and as such there is hardly any difference between then two. The Mall air handlers or terminal units are used for local use They mainly consist of coil, air filter and blower.
Keeping this in view, what is the main function of Ahu?
An air handling unit is a device used to regulate and circulate air as part of the heating, ventilation and air conditioning system. The AHU takes in outside air, reconditions (filtered and either heated or cooled) it and supplies it as fresh air to the air conditioned room.
What is AHU and FCU?
The latter is an acronym that describes multiple systems of heating, ventilating and air conditioning. AHU, completely known as air handling unit is different from FCU or the fan coil unit. AHUs are usually connected to a central HVAC system whereas an FCU can function or be installed itself.
What is the difference between HVAC and air conditioning?
One of the most commonly asked questions homeowners ask is, “What's the difference between AC and HVAC?” While AC stands for “air conditioning,” HVAC stands for “heating, ventilation and air conditioning.” These two terms are often used interchangeably to describe any type of heating or cooling device in a home.