Broag Air Pressure Switch (Aps)
The air pressure switch acts as a safety mechanism that checks the fan is fully operational. It ensures that, if the fan fails within the boiler, there would not be a build up of toxic fumes with no means of venting them. The PCB closely monitors the air pressure switch to make sure it is fully operational before the unit is fired up, preventing the appliance from starting without one of its key safety features.
BROAG 54480 PRESSURE SWITCH
Part No: 2201632 / MPN: 54480
BROAG S53252 AIR PRESSURE DIFFERENTIAL SWITCH
Part No: 2203172 / MPN: S53252
BROA S58602 SENSOR AIR PRESSURE HUBA 4030
Part No: 2201510 / MPN: S58602