Velocity Boiler Works (Crown) 960122 Rollout Switch

The Velocity Boiler Works 960122 Rollout Switch is a critical safety component designed for gas-fired natural draft water boilers and industrial heating systems. Engineered as a high-limit safety device, this 240C flame rollout switch monitors the burner area for excessive heat rollout, which often indicates a blocked flue or a compromised heat exchanger. Upon detecting temperatures exceeding its 240-degree Celsius threshold, the switch breaks the electrical circuit to the gas valve, immediately shutting down the burner to prevent hazardous conditions, including fire or carbon monoxide buildup. This genuine Crown Boiler replacement part is essential for maintaining the safety protocols of residential and commercial boiler systems.

As a direct replacement for the Crown 440-583-000 rollout switch, the 960122 ensures seamless mechanical and electrical compatibility with the AWR and CWI boiler series. The robust, rugged construction is optimized for high-temperature durability, providing reliable monitoring in demanding environments. For technicians performing HVAC system diagnostics, this manual-reset switch (Model G4AM0600240C) serves as a primary defense against flame spillover. When a furnace technician encounters a tripped rollout, the 960122 provides the precise thermal response required to protect the equipment and the facility, making it a staple HVAC replacement part for high-volume service calls.

• Precise Thermal Safety: Calibrated to trigger at exactly 240°C, ensuring an immediate shutdown during flame rollout events.
• OEM Compatibility: Functions as an identical replacement for 440-583-000, ensuring zero-clearance fitment in Crown AWR series boilers.
• Durable Engineering: Features a high-integrity design to withstand the rapid temperature fluctuations common in industrial boiler combustion chambers.
• Contractor Preferred: Recognized as a standard safety item for natural draft boilers, simplifying troubleshooting and field repairs.

Is the 960122 switch a manual or automatic reset?
This flame rollout switch is a manual reset safety device. If the switch trips due to excessive heat, a technician must physically inspect the heat exchanger and venting before resetting the system to ensure safe operation.

How do I test the Velocity Boiler Works 960122 for continuity?
Using a multimeter set to the lowest ohms of resistance, touch the probes to the terminals. A functional, untripped rollout switch should show continuity (near zero ohms). If the circuit is open despite being reset, the component requires replacement.

What boiler models is this rollout switch compatible with?
The 960122 is widely used across Velocity Boiler Works (Crown) equipment, specifically the AWR070, AWR105, AWR140, and CWI line of gas-fired natural draft boilers.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.