Primary Flow Switch 1.035966

Alpha Flow Switch 1.035966

For use with the following Alpha boilers:

Alpha PROTEC 50
and Alpha PROTEC 50 LPG
plus Alpha PROTEC 50 PLUS
fits Alpha PROTEC 50 PLUS LPG

In a boiler, the flow switch is there to prevent the boiler from igniting if there is too much gas in the system that has not been expelled.

It will only allow the boiler to fire up if it detects that the fans are spinning at the required speed to get rid of excess gas