Siemens Building Technology 331-4311 Actuator Els PW 17895 Key Technical Benefits: Dual-Stage Precision:

Key Technical Benefits: Dual-Stage Precision: Accurate set points of -0

and 700 series controllers

Universal Compatibility: Includes both NAT and LP gas orifices for seamless integration across various fuel types

Common indicators include an audible "humming" or "chattering" from the contactor coil

Slide the hub onto the shaft and tighten the set screw onto the flat portion of the motor shaft to prevent slipping and out-of-balance operation

Siemens Building Technology 331-4311 Actuator Els PW 17895 Key Technical Benefits: Dual-Stage Precision:The Siemens Building Technology 331 4311 Actuator is a No. 3 Pneumatic Damper Actuator engineered for the gradual or positive control of HVAC dampers and air valves. This robust, metal fabricated unit operates within a 3 to 7 psi spring range and features a 2 3 8 inch stroke, making it a reliable choice for mixing box dampers and unit ventilators. As the direct replacement for MK 693 85, it integrates seamlessly into existing pneumatic systems using