HVAC DAMPERS
Round, Rectangle & Bypass

ECOJAY SMARTZONE DAMPERS

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Ecojay dampers are designed and built for quality and reliability.  Precision fabrication and construction ensure long term reliability

Document links (PDF):

ROUND DAMPERS [Power (3-wire) & Spring (2-wire)]

Ecojay SmartZone
Ecojay's DSUP (3-wire), DSUS (2-wire) & DFUS (Fresh Air) series of ROUND 24VAC  supply air hvac dampers are designed and precision built for long term reliability. The gasket insures a tight air seal when closed  and allows unobstructed air flow when open. Ecojay round dampers use heavy gauge galvanized steel spiral ribbed can construction insuring long-life and structural integrity under harsh installation conditions. Replace ARD, HARD
Document link:
- Power ROUND DAMPER SPECIFICATIONS
- Spring ROUND DAMPER SPECIFICATIONS

RECTANGULAR DAMPERS [Power (3-wire)]

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Ecojay's DSEP (3-wire) series of RECTANGULAR 24VAC  supply air dampers are designed and precision built for long term reliability. Ecojay's rectangular dampers are commercial grade using extruded aluminum frame and blades for light weight and low condensation performance. Blade design creates a tight air seal when closed while maintaining linear airflow throughout the open/close cycle.
Document link:
- Power RECTANGULAR DAMPER SPECIFICATIONS
- Spring RECTANGULAR DAMPER SPECIFICATIONS

BYPASS DAMPERS [Barometric & Modulating]

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Barometric
The Ecojay BYPASS dampers are constructed with reliability and simplicity in mind.  The necessity for a bypass damper in almost all zoning applications calls for an easy to use and cost effective damper to serve this purpose. Both barometric (economical) and modulating (low noise) versions available. Custom components with critical dimensions are manufactured using laser cutters to ensure a precision fit.
Document link:
-  BYPASS DAMPER INSTALL
-  Barometric BYPASS DAMPER SPECIFICATION
-  Modulating BYPASS DAMPER SPECIFICATION
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Modulating