Resideo ST9120U1011 Fan Timer Freon What causes a rollout switch

What causes a rollout switch to trip at 160 degrees

this single-electrode assembly utilizing Kanthal construction provides both high-voltage spark ignition and precise flame sensing

Flexible Configuration: Keyed wire harnesses and adjustable DIP switches allow for custom HSI warmup time and fan delay settings to match specific appliance requirements

Optimized Efficiency: Low contact resistance of 50 milliohms minimizes voltage drop across the contacts to ensure maximum power delivery to the load

5-foot 2-wire PVC cable allows for clean routing to the input terminal board without the need for additional splices

Resideo ST9120U1011 Fan Timer Freon What causes a rollout switchThe Resideo ST9120U1011 is a universal electronic fan timer engineered to serve as a comprehensive control solution for gas warm air appliances. This furnace fan timer board integrates the management of combustion blowers and circulating fan operations into a single robust platform. Designed for field flexibility, it features DIP switch selectable delay settings that allow for precise timing adjustments. Specifically, the ST9120U1011 provides