established · computed
Thermal probe 20 normally closed, opens power to spark igniter on demand
Before start-up, thermal probe switch 20 is normally closed. On energy demand from thermostat 10, relay 22 closes, applying electrical power from source 25 to the electrical spark igniter 30 through the closed thermal probe 20.
Basis
- Confidence
- 0.90
- Published
- 19 Aug 2026
- Component
- electronics
- Source Ref
- US Patents — StartUp ShutDown For A Hydrogen Gas Burner #4,465,455
- Notebook Id
- 21
- Recorded At
- 2026-07-03T06:24:20.440Z
- Source Page Id
- 46
startup thermal-probe relay