What Makes Up a Commercial HVAC System and How Does It Function?

Commercial HVAC systems are used in all kinds of businesses from shopping malls, retail stores, manufacturing plants, warehouses and office buildings. They are designed to create comfortable environments in large areas by regulating the heating and air conditioning environments so that the air quality will be good and people will be comfortable in their workplaces and shopping experiencing.

HVAC stands for heating, ventilating and air conditioning. The process of HVAC is in the definitive area of mechanical engineering and it is centered on the principles of thermodynamics, heat transfer and fluid mechanics. Another discipline that is often added to the mix is refrigeration, so you would have the initials of HVACR.


The ventilation portion of the equation is the process of replacing or “exchanging” air in any given space in order to provide a higher quality of indoor air. This process can improve comfort, control of temperatures, the removal of dust, airborne bacteria, and the removal of excessive moisture, smoke, heat and carbon dioxide.

The main three functions of the equation of heating, ventilation and air conditioning are all interrelated particularly with the application of thermal control and regulation and an acceptable level of the quality of the air indoors.

In the larger and modern buildings that house retail, office and manufacturing assets, the design and implementation of large HVAC systems result in the integration of all three of these elements into one or more HVAC systems.
The exact layout of the system is designed and built by mechanical engineers who plan and direct the building and setup of these systems.

Heating can be accomplished by electrical means, gas, and water turned into steam. Various systems are used to deliver the power to heat water into steam, gas to warm air and gas to warm the air which is transferred into air ducts which distribute the heat into the rooms through registers.

The use of fossil fuels such as gas and coal can cause carbon monoxide to occur in spaces, nitrogen oxide gases and other incomplete combustion processes that can become dangerous if not ventilated out of a building. This is done throughout a building with a series of exhaust pipes.

Ventilation is important as it gets rid of the noxious gases that are formed in this process. It also gets rid of airborne bacteria as well as mold spores.

Air conditioning is the process of getting rid the humidity in a building and the removal of heat so that the rooms feel cool. The amount of heat exchange that is accomplished by regulating the amount that is removed by a temperature control on the wall. It can be set to turn the air conditioning on and off automatically.

Commercial HVAC systems are well thought out systems that take into consideration the trane compressor info, cubic square feet of a space, and then by designing specifically how much cooling will have to get done in order to accomplish the goals that are set in place for an area.

Without efficient HVAC systems, it would be impossible to work, shop, is entertained and live our lives in comfort, and the variations in temperature would make life much more uncomfortable than it currently is.