Honeywell MS4104F1210 Actuator 340793-762 and OEM model S1-024-25394-000

and OEM model S1-024-25394-000

Most issues stem from a dirty pilot orifice or obstructed primary air inlets

How do I ensure the extension does not slip on the damper shaft

Optimized Steam Control: Provides precise seating for thermostatic expansion elements to eliminate steam blow-through

Honeywell MS4104F1210 Actuator 340793-762 and OEM model S1-024-25394-000The Honeywell MS4104F1210 is a high performance Fast Acting Actuator engineered specifically for fire and smoke applications. This 120 Vac spring return actuator delivers 30 lb in of torque, ensuring reliable fail safe operation in critical life safety systems. Designed for precise two position control, it handles UL555 and UL555S requirements for leakage and fire ratings. This model features a 95 degree stroke and is compatible with a 1 2 inch round