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more dependable light-offs
the plug-and-play wiring harness minimizes labor time while ensuring secure electrical connections
covering the majority of standard damper sizes
It will automatically re-engage the heating circuit once the temperature drops below the 50°F reset threshold
Siemens Building Technology 331-2905 Actuator R-407A more dependable light-offsThe Siemens Building Technology 331 2905 is a professional grade No. 4 Pneumatic Damper Actuator engineered for the gradual or positive control of outdoor air, return air, and exhaust dampers. As a veteran preferred HVAC pneumatic actuator, this unit features a rugged all metal body and a 4 inch stroke designed for longevity in demanding ventilating systems and terminal units like unit ventilators and mixing boxes. This model is equipped with an
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