HVAC systems are truly complex. Rather than one system, it is made of different subsystems, each with its purpose. As an owner, you should know what goes into these technological wonders.
Here are the main HVAC parts in commercial and industrial HVAC systems.
The thermostat is a temperature regulatory device that dictates how much heating and cooling is needed. It is one of the simpler components and comes in various types depending on the type of energy it runs on. The most popular ones today would be programmable and smart thermostats.
2. Air Conditioner:
No HVAC system is complete without AC, is it? It is the one thing that is responsible for cooling. But these machines cannot do this task on their own. There are other components involved in the process.
AC removes the heat from the interior of a room while performing dehumidification. In commercial and residential sectors, the units are central air conditioning systems as opposed to split units in residential sectors.
The compressor has the job of circulating refrigerant to and from condenser and evaporator coils. This specific HVAC part will also change the physical state of the refrigerant; from gas to liquid and vice versa.
The condenser is on the heating side of the HVAC. Also known as the heat exchanger, a condenser removes heat from the interior to the exterior and will also change the physical state of the refrigerant. However, in this process, the involvement of the condenser is directly compared to the compressor. It also collects the heat into the heat pump from the exterior.
5. Thermal Expansion Valve:
Its name can be a bit misleading because it is an active part of cooling rather than heating. Found in front of the evaporator or the air handler, it drops the pressure on the liquid refrigerant. This will allow the refrigerant to expand, changing it from liquid to gas before going to the evaporator.
6. Air Handler:
Sir handler simply serves as housing units for components like evaporator coils and blower, as well as subcomponents; dampers, racks, chambers, sound attenuators, cooling and heating elements, etc.
7. Terminal Units:
The terminal unit also serves as housing for coils, blower, and filters. However, it comes in different sizes and is mounted on ceiling walls or near duct returns.
Having a chiller is not necessary, but in industrial complexes, having one solves a lot of problems. This is an exact, heavy-duty machine used to lower the temperature of different processes.
The furnace is the key part of the heating system. It provides heat by working directly against the AC. The furnace produces heat, which is then distributed into vents with the help of a blower.
10. Duct Work + Ventilation System:
Finally, the duct and ventilation systems take the spot. These networks connect the entire HVAC system along with circulating air throughout the building. Unlike previous components, these systems are not really technologically inclined.
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