Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
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Ignition Control System<br />
1. Thermostat calls for heat<br />
2. Ignition controller requests a spark to the electrode which ignites the gas<br />
3. Control uses flame rectification or sensor to identify if flame is present<br />
4. Ignition controller sends signal to open gas valve<br />
5. When thermostat is satisfied, gas valve closes to shut off main burner gas
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