Siemens Building Technology 331-2973 Kit 319847-401 providing the necessary amperage to

providing the necessary amperage to drive multiple zone valves

Enhanced Efficiency: Low-pressure drop design maximizes system SEER by minimizing flow resistance through the reversing block

What causes the original York pan to leak

removing the requirement for manual lubrication

Siemens Building Technology 331-2973 Kit 319847-401 providing the necessary amperage toThe Siemens 331 2973 is a rugged, metal fabricated No. 4 pneumatic damper actuator designed for the gradual or positive control of HVAC systems and fire smoke dampers. Built for high demand applications, this piston type actuator features a 4 inch stroke and a nominal 8 13 psi spring range, ensuring precise positioning of ventilating systems and mixing boxes. This universal kit includes a mounting plate, pivot post, clevis, and damper crank,