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Bench-tested for industrial-grade reliability
as well as several transition-model air handlers
Common Questions & Technical Insights How do I know if I need a new flame sensor
and 5V belt series
Siemens Building Technology 331-3002 Kit R-448A Bench-tested for industrial-grade reliabilityThe Siemens Building Technology 331 3002 Kit features the No. 4 Pneumatic Damper Actuator, a rugged, metal fabricated powerhouse engineered for precision air flow control in commercial HVAC systems. This piston type pneumatic actuator is designed for the gradual or positive actuation of HVAC dampers and fire smoke dampers, offering a consistent 4 inch stroke. Operating within a 5 10 psi spring range, it provides the necessary force for reliable mixing
