Barometric Zone Damper

Product Info

The Barometric Zone Damper™ (BZD) operates like any standard zone control damper but has a built-in static pressure relief mechanism that eliminates the need for a bypass damper. The damper has been factory set and does not require any adjustments. When the static pressure reaches set point, the barometric half of the damper will start to modulate open, bleeding a small amount of air in order to keep the static pressure from rising to an unacceptable level. Features & Benefits:

  • Can be mounted in either the horizontal or vertical position 
  • No adjustments required
  • Cuts zoning system costs
  • Requires less installation space
  • Increase system efficiency
  • Sold direct to HVAC contractors
  • Made in the USA

Interested in Purchasing the BZD direct? Fill Out the Form or Call 888-652-9663.

More Info

How the BZD Damper Works

The BZD damper works like any standard zone damper with one exception - it has a built-in static pressure relief mechanism that eliminates the need for a bypass damper. Tests indicate that most systems can handle up to double the rated cfm through the register before noise becomes a problem. Unlike a standard zone damper, the BZD has been designed with both a fixed and a hinged blade and is controlled by an actuator. The lower half of the blade then functions as a barometric pressure relief. The Barometric Zone Damper will allow the barometric half of the closed zone dampers to open if the static pressure reaches it preset setting and bleed a small amount of air into the zones that are not calling, keeping the system static pressure at an acceptable level. Tests also indicate that bleeding a small amount of conditioned air to the zone(s) that are not calling has little impact on the temperature in the zone(s) because in most cases they are above or below setpoint, so the zone(s) can absorb the additional conditioned air. The BZD damper is factory-set and should not need any adjustment. Each thermostatically-controlled zone will require it’s own BZD zone damper.

Interested in Purchasing the BZD direct? Fill Out the Form or Call 888-652-9663.

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Interested in Purchasing the BZD direct? Fill Out the Form or Call 888-652-9663.

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