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Name the four common types of VAV boxes? 1) Single duct 2) Dual duct 3) Fan-powered 4) Series fan-powered
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Name the four common types of VAV boxes?

1) Single duct
2) Dual duct
3) Fan-powered
4) Series fan-powered

User Randerson
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1 Answer

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Final answer:

The four common types of VAV boxes are single duct, dual duct, fan-powered, and series fan-powered.

Step-by-step explanation:

The four common types of VAV (Variable Air Volume) boxes are:

  1. Single duct: These boxes have only one duct connected to them, through which both the supply air and return air flow. They regulate the airflow by adjusting the volume of supply air.
  2. Dual duct: These boxes have two separate ducts connected to them, one for the supply air and one for the return air. They maintain different temperature zones by adjusting the mix of hot and cold air from the two ducts.
  3. Fan-powered: Also known as powered-induction boxes, these boxes have a fan that assists in pushing the conditioned air into the space. They are used in areas with higher static pressure or when longer air distribution is required.
  4. Series fan-powered: These boxes are similar to fan-powered boxes, but they also have a heating coil. They help in maintaining a constant supply air temperature despite variations in the building load.

User Wilfred Clement
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