this manual reset thermal switch ensures the combustion chamber remains within safe operating parameters by interrupting the millivolt signal to the gas control valve if internal temperatures exceed 240°F

Common Questions: How do I know if the ASCO 323-507 is the correct kit for my valve

this specific sensing element is designed for 3/8" valve configurations

Field Reliability: High-grade materials designed to withstand the rigor of hydronic heating environments

it includes pre-installed leads with 1/4-inch insulated female quick-connect terminals

Honeywell VR8205H1003 Valve 340155-7024 this manual reset thermal switchThe Honeywell VR8205H1003 Valve is a professional grade, 24 Vac single stage gas valve engineered specifically for high demand direct ignition systems, including hot surface and direct spark applications. As a veteran preferred HVAC replacement gas valve, this unit features a slow opening characteristic that ensures a smooth, quiet lighting sequence, reducing mechanical stress on the heat exchanger. With a 1 2" x 1 2" NPT connection and a 3. 5" wc