The Johnson and Starley fan assembly introduces fresh air into a boiler's combustion chamber, ensuring that gas is burned correctly and extracting burnt gas at the end of the combustion process. The safety parameters of the boiler ensure that no gas passes through to the main burner if the fan is not functioning properly.
Voltage is 230 V
Technical specification
Manufacturer Model No1000-0500375Brand NameJohnson StarleyCompatible WithEconomaire 31, Economaire 32, Hispec J32 and Hispec M31