HDG K10, Руководство по эксплуатации

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4 Planning and installation – Water
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4.7 Water
The diaphragm expansion vessel must be constructed in accordance
with DIN EN 13831 “Closed expansion vessels with built-in
diaphragm for integration in water installations”. Before putting the
system into operation, the pressure of the diaphragm expansion
vessel must be adjusted for the conditions in the heating system and
in the building.
After putting the system into operation, heat up the system to the
maximum boiler temperature and bleed air from the system again to
make sure that there are no air pockets.
The safety devices must be implemented in accordance with DIN EN
12828 “Heating systems in buildings” and the correspondingly
harmonised national standard DIN 4751, Part 2 “Closed,
thermostatically safeguarded heat generating systems with supply
temperatures of up to 120°C; safety equipment”.
In Germany, the requirements of the German energy conservation
ordinance (EnEV) must be met.
Important!
The heating system must be filled with water in accordance with
VDI guideline 2035, “Avoiding damage in hot water heating
systems”.