SIT 0.503.902 GAS VALVE STEP CONTROLLER IGNITION UNIT 0503902 FOR 503 EFD GSP
SIT Part Number: 0503902 ( 0.503.902). SIT 0503902. It is a 220-240v unit type EFD. See the plate picture below for details. For this reason. We do advise that any parts are diagnosed, installed and tested by a suitably qualified engineer.