Further Information On The Heating Water; Diagramm Wasserhärte - Potterton EC three 125 Installation, Operation And Maintenance Manual

7308536-02 06.13

4.3.1 Further information on the heating water

- The water must not have any foreign matter, such as sweat beads, rust particles,
scale or sludge. During filling, flush the system until only clean water runs out.
When flushing the system,ensure that the water does not flow through the heat
exchanger in the boiler, that the thermostatic radiator valves are removed and
the valve inserts are set to the maximum flow rate.
- If additives are used it is important to follow the instructions of the manufactur-
er.
If, in a special case, it is necessary to use additives in a mixture (e.g. hardness
stabiliser, frost protection agent, sealing agent,etc.) it has to be observed that
the agents are compatible with each other and the pH-value is not altered. Pref-
erably, agents from the same manufacturer should be used.
- For buffer cylinders in conjunction with solar thermal systems or solid fuel boil-
ers, take the buffer capacity into consideration when determining the fill water
volume.
4.3.2 Diagramm Wasserhärte
Zur Vermeidung von Schäden durch Kesselsteinbildung im Kessel ist Fig. 6 zu
beachten.
Condensing gas boiler Eurocondense three125-300 kW
Before installation
19