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Robertshaw Hot Surface Ignition Control, I.C.U.
The Robertshaw 780 Series hot surface controls are designed for use on gas fired systems. The system acts on a demand for heat by a switch or thermostat to supply power to the ignition control. On non pre-purge models, the igniter will be energized immediately and remain on for either of two optional selected igniter heat-up times approximately 17 or 34 seconds. For models with the prep urge option, there is a time delay equal to the heat-up time selected before the igniter is energized. At the end of the igniter heat-up time, the gas Valve is opened supplying gas to the main burner. After several seconds, the igniter is turned off and the sensor is energized. As long as flame

Price is $193.00
Price: $192.53