PulsaCoil A-Class Cylinder Relpol Relay XB424

Gledhill XB424 Relpol Relay

Suitable for :

Gledhill PulsaCoil A-Class Cylinder

The relay helps the mains pressure hot water supply operate stably

No original packing

The relay on a boiler is the part of the boiler system which triggers the boiler to release heat when the thermostat calls for it.

The thermostat is a device which measures the temperature of an area, and when the area gets too cold, it will send a message to the relay switch to release heat from the boiler.