mechanical rooms

consistent combustion by monitoring the millivolt signal and initiating a safety lockout if a flame is not detected during the trial-for-ignition period

High-Temperature Durability: Fiberglass construction maintains structural integrity under condensing furnace operating conditions

Operating at 220/240Vac

Isolated Coil Design: The isolated coil and case prevent grounding issues and electrical noise in sensitive control circuits

Siemens Building Technology 331-4313 Actuator Els PW 17895 mechanical roomsThe Siemens 331 4313 No. 3 Pneumatic Actuator is a heavy duty, bellows operated rugged metal actuator designed for proportional control of medium to large dampers and terminal units. Operating within a 3 to 7 psi spring range, this unit provides a consistent 2 3 8 inch stroke for precise mechanical positioning. Engineered with a fixed mounting configuration and a neoprene diaphragm, it maintains high torque performance in demanding HVAC environments.