Key Benefits for Contractors: Precise OEM Fitment: Guaranteed compatibility with Carrier heating and cooling equipment

preventing accidental fluid discharge

and integrated boiler control systems

Compatible with Williams direct-vent furnaces

Siemens Building Technology 331-3002 Kit R-448A Key Benefits for Contractors: PreciseThe 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