Installation and Operating Instructions
8
De-scaling the 75/7800 Boiler
•
Scale is a major problem for Hot Water Tanks in Hard Water areas. A build-up of scale inside the tank can seriously
affect the safety and the performance of the equipment. The parameters affecting the formation of scale are.
•
The hardness of the Water
•
The temperature of the Hot Water
•
The Hot Water consumption
•
It is imperative that the Boiler is being de-scaled regularly. It is recommended that de-scaling is done outside the
customers premises.
To de-scale the EZYTAP75/7800
1.
Isolate Power and Water.
2.
Disconnect all pipes from the Boiler for ease of handling.
3.
Drain the Boiler from underneath by unscrewing the drain cap. Once drained re-fit the drain cap.
4.
Using a funnel to pour the Descaling Solution into hot water outlet at the top of the Boiler.
5.
Leave Solution to stand for 45 mins to an hour until fizzing stops (fizzing is the result of a chemical reaction
when the Descaling Solution attacks the Scale).
6.
Drain Descaling Sanitising Solution from the Boiler through the bottom drain cap and then re fill with fresh
water at least twice to remove all traces of the Descaling Solution.
7.
Re-connect all pipes, activate power and water. Dispense water from the hot water tank to ensure that the
boiler is primed again before powering the Boiler on at the tap by holding the power button down for 8 – 10
seconds.
Error codes 75(T)/7800(T)