Basic HVAC System Diagram with important Parts and Components


HVAC stands for Heating, Ventilation, and Air Conditioning. It is a system to make comfort a room or enclosed place for humans or any sensitive machinery. An HVAC system is used to make a room cool, hot, dry, clean, etc. Remember that there are different types of HVAC systems are available and they work with different principles. 

Here you can see the diagram of HVAC system that works with the water cooling method.

Basic HVAC System Diagram, HVAC Diagram, diagram of HVAC System



Here, the different parts of the HVAC System,

AHU(Air Handling Unit)


AHU or Air Handling Unit is a very important part of an HVAC System. As its name suggests it handles or circulates the air. You can see in the above diagram, at first the outside air enters into the AHU, then it gets filtered by the filter after it goes through the cooling coil where its temperature got decreased so the room will be cooled. But when the cooling coil is not charged and the heating coil is charged condition then the temperature of the Air will be increased so the room will be hot. Basically, the cooling coil helps to control the temperature whereas the heating coil helps to maintain or control the humidity.

After the heating coil, you can see there is a fan that is used to circulate the air. It helps to pull air from the outside to the room inside and circulate the air. The air inside the room again comes to the input of the AHU. Thus the air circulates.


Chiller


Chiller is also a very important part of the HVAC system. Basically, the main function of the chiller is to produce the cold or Chill water that flows through the cooling coil of the AHU or Air Handling Unit. This chilled water continuously flowed through the cooling coil so when the air passes through the cooling coil it got chilled. There are different types of chiller are available in the market such as water-cooled, gas-cooled. Here, you can see the water-cooled chiller that requires a cooling tower and condenser pump for cooling. Condensor pump helps to circulate the water between the chiller and cooling tower. Cooling tower basically reduced the temperature at the normal environmental temperature.

You can see there are two pumps are connected at the output of the chiller primary pump and the secondary pump. The primary pump helps to transmit water from the chiller to AHU and the secondary pump helps to transmit water from AHU to the chiller.


Heat Pump


Heat Pump Produces the hot water that circulates through the heating coil of the AHU. So when the airflow passes through the heating coil it got hot so that can maintain the humidity or increase the room temperature. Here also, you can see there are two pumps primary pump and a secondary pump. The primary pump helps to transmit the hot water from the heat pump to AHU and the secondary pump helps to transmit the hot water from AHU to the heat pump.


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Basic HVAC System Diagram with important Parts and Components Basic HVAC System Diagram with important Parts and Components Reviewed by Author on 1/07/2022 Rating: 5

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