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Can I use an aftermarket alternative instead of the OEM Reznor 43446
the normally open contacts will not close
Direct Surface Mount: Simplified installation on heat exchanger headers for accurate temperature sensing
it provides the necessary electromagnetic force to ensure clean valve seating and release
Schneider Electric (Barber Colman) MK-3121 Actuator R-410A Can I use an aftermarketOptimize your pneumatic control systems with the Schneider Electric MK 3121 Actuator, a precision engineered proportional pneumatic damper actuator designed for the professional HVACR contractor. This rugged unit features a 8 to 13 PSI spring range and a versatile 2 to 4 inch adjustable stroke, allowing for exact field calibration in air handling units, mixing boxes, and VAV systems. The MK 3121 is the primary direct replacement for legacy models MK