Fireplace replacement part Fireplace Ignitor Module Robertshaw Direct Spark Ignition Control Module DS 845 / 780-502. Description for Robertshaw 780-502.The 24 VAC DS845 Direct Ignition Control is applicable to commercial cooking equipment, gas fired heating and water heating systems of many types. The system acts on a demand for heat by a switch or thermostat to open the gas valve. At the same time the DS845 ignition control supplies a spark to the electrode which ignites the gas. After the gas is lit, an electronic circuit proves the presence of flame using flame rectification. When the thermostat is satisfied, the gas valve will be closed to shut off main burner gas.
- This is for 1 Robertshaw Direct Spark Ignition Control Module DS
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