Saunier Duval Low Water Pressure Switches

These tend to be fitted to the older standard efficiency Saunier Duval boilers and monitor the pressure of the water present within the boiler, they are designed to switch the boiler off if the pressure in the boiler falls below a pre-set pressure normally 0.5 bar or 0.25 bar of pressure. This prevents the boiler form running at low pressures which prevents damage to the boiler.



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