The RBI Boiler 16-0058 Ignition Module CSD-1 is an electronic ignition control component designed for compatible RBI gas-fired boilers and water heaters. Operating on 120V power, it manages the burner ignition sequence by controlling pilot gas flow, generating the ignition spark, and monitoring flame detection. If a flame failure occurs, it supports the CSD-1 safety shutdown and locko... https://www.partshnc.com/16-0058-rbi-boiler-ignition-module-csd-1