Sime distribution instrument When there is a need for more gas in the burner, a message is sent from the PCB to the gas valve, which opens and allows gas to flow through the valve into the burner or the pilot assembly, depending on the type of appliance. This part is present in 9 different boilers in the Sime range, including the Sime Superior 40 CI , Superior 50 CI , Superior 60 CI , Superior 80 CI, and Superior MKII 40. In the next tab, there is an appliance grid with links to all boilers that

Brand Name	Sime