Pay in 4 interest-free payments of $68.14 Learn more
Ships within 48 hours · Estimated delivery Sep 16 - Sep 21
5-inch shaft diameter and resilient mounting configuration
adjustable through the cover for quick setpoint changes
Built for high-cycling HVACR environments
This allows you to manually reposition the damper blades without needing 24Vac power
Manual Override: Built-in manual lever allows for emergency operation during power loss
Lochinvar & A.O. Smith 100109972 Control Box 320735-701 5-inch shaft diameter and resilientThe Lochinvar & A. O. Smith 100109972 Control Box is a critical replacement component designed for precise sequence control and safety monitoring in high efficiency commercial boilers and water heaters. Engineered to interface seamlessly with the integrated control system, this module manages ignition timing, flame sensing, and temperature modulation. Technicians frequently utilize this OEM replacement part to resolve control board failure symptoms