Gas Valve Systems - AbsolutAire | Direct Fired Heaters

spark generated by an ignition module and electrode. When enough heat is generated in the thermocouple, the gas valve allows gas to the main burner and is ignited by the pilot until the call for heat is satisfied. • Direct spark – When the thermostat calls for heat, the main burner is ignited by a direct spark or ceramic (glow bar) igniter.

  Direct, Module, Ignition, Spark, Direct spark, Ignition module