The Fenwal DSI module also includes built-in diagnostics via an LED indicator and flame current test pins

High Current Capacity: Rated for up to 25A resistive loads

maintaining the high-voltage performance standards required by industrial-grade chillers and rooftop units

Rotation is easily reversed by swapping the two primary internal lead connectors

these units are typically controlled with a main air supply of 20 psi to ensure full torque delivery and precise damper positioning

Schneider Electric (Barber Colman) MP-452 Damper Els PW 29614 The Fenwal DSI module alsoThe Schneider Electric Barber Colman MP 452 is a heavy duty proportional actuator designed for the precise positioning of dampers, valves, and ventilation flaps in high demand industrial and commercial HVAC systems. This non spring return actuator delivers a robust 220 lb in torque, ensuring reliable control even under significant load conditions. Operating on 120V AC power, the MP 452 features a versatile 180 degree rotation and an adjustable timing