Universal Refrigerant Compatibility: Engineered for use with a wide range of refrigerants including R-22

distinct from the violet-wire FP2 air-coil sensors

Robust Construction: Built with industrial-grade OEM components to withstand the high-cycle demands of modern HVAC cycles

and Ducane equipment while maintaining the integrity of the furnace high limit safety chain

Durable Brass Construction: Engineered to resist corrosion and handle high-pressure commercial environments

Schneider Electric (Barber Colman) MK-2690 Proportional Control Els PW 17895 Universal Refrigerant Compatibility: Engineered forThe Schneider Electric Barber Colman MK 2690 is a specialized pneumatic valve actuator engineered for precise proportional control in demanding HVAC applications. This compact unit features a 6 sq. in. effective area and is primarily designed to drive 1 2" to 2" globe valves, including the VB 7000 series and discontinued VB 9xxx models. Built with a rugged die cast aluminum housing and a NEMA 1 enclosure, this actuator ensures linear movement with a 1