Schneider Electric (Barber Colman) MP-424 Proportional Actuator Refrigerant Direct-Acting Precision: Does not require

Direct-Acting Precision: Does not require a minimum pressure differential to operate

The Lennox 79J75 is designed as an internally equalized valve or is specific to the evaporator configuration of the matching Lennox coil

This part number typically refers to the nozzle itself

The adjustable high limit (100–220°F) and low limit (110–200°F) dials

Features automatic reset functionality for seamless system protection without manual intervention

Schneider Electric (Barber Colman) MP-424 Proportional Actuator Refrigerant Direct-Acting Precision: Does not requireThe Schneider Electric (Barber Colman) MP 424 Proportional Actuator is a heavy duty non spring return actuator designed for the precise positioning of dampers, globe valves, and ventilation flaps in commercial HVACR systems. Operating on 120V AC power, this unit delivers a consistent 60 lb in torque to ensure reliable mechanical movement across a 90 degree rotation. Engineers often specify the MP 424 as a direct replacement for Barber Colman EA 51,