This unit is built for B-width cabinets

This assembly is specifically calibrated for Williams Floor Furnaces models 4505A and 6505A

or intermittent pressure switch faults

meeting stringent RFI and EMI standards for reduced electrical interference

Key Benefits: OEM Compatibility: Precision-fit for Copeland EA and ER series semi-hermetic compressors

Siemens Building Technology 331-4811 Actuator 320720-756 This unit is built forFor veteran technicians managing air handler units and mixing boxes, the Siemens 331 4811 represents the industry standard for pneumatic reliability. This No. 3 Pneumatic Damper Actuator is engineered with a rugged, all metal body designed to withstand the harsh environments of mechanical rooms. Operating on a nominal 8 to 13 psi spring range, this unit provides precise, gradual, or positive actuation of HVAC dampers and air valves. The 331 4811