Terminal Unit Sizing – Inlet Valves

All variable air volume (VAV) terminal units—including single duct, bypass, system powered induction, fan-powered or dual duct—have a common function: regulate the amount of primary air entering the terminal unit.

This control of the primary air volume can be used for the following purposes:

  • Occupied space temperature regulation
  • Discharge air pressure regulation
  • Discharge air temperature regulation
  • Mixing of primary air with return air in an induction terminal

The primary air valve assembly contains an inlet tube, damper and air flow sensor. When sizing a terminal unit inlet, HVAC designers aim to minimize the sound generation of the terminal unit, as well accurately resolve the flow signal at both full and minimum cooling.

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Price at Greenbuild 2010

Greenbuild 2010, held in Chicago this past November, featured over 100 exhibitors—all showcasing the latest and greatest in green product and service innovation.

For the sixth year in a row, Price was there to connect with architects, engineers and builders interested in green construction, and show off our green product offerings.

Green Price Products:

Check out some of the great footage we got while we were there.

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PRCN Displacement Demo

Hi everyone,

As you have seen in previous blogs, the Price Research Center North (PRCN) welcomes visitors from around the world to do demos and tests on a variety of projects. The team in the PRCN solve unique air distribution challenges on a daily basis, and our camera crew was able to sneak in earlier this morning to chat with one of our engineers about a demo they just finished. They were trying to answer the common question: Can you put a displacement system behind an architectural covering? Check out the video below to see what we found!

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