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VSP
(95°C)
VST
DSA
(3 bar)
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3
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8
ENGLISH
WATER SIDE CONNECTION
The connection of the boiler to the heating network (delivery and return) must be made with at least the following pipe sections:
LNK 15 EVO 28 mm
LNK 20 EVO 28 mm
LNK 30 EVO 35 mm
LNK 40 EVO 35 mm
Lime, corrosion and rust sludge interfere with the operation of the heating system.
The lling water must meet the requirements of European, national and local regulations on the treatment of technical water (e.g. Desalination,
softening, sludge removal) to avoid resulting damage.
The system can be lled and emptied only when it is cold.
When lling it, it is necessary to check the line or boiler pressure using a pressure gauge. It is advisable to ll it using a permanently installed
lling system to minimise the oxygen content of the system.
ATTENTION: Even the smallest amounts of oxygen combined with the high water temperature in heating systems inevitably
lead to corrosion.
For correct lling, bleed the system both during and at the end of the lling operations.
When emptying it, make sure that the system is cold and that the water pressure in the heating circuit is suitable for the ambient pressure by
manually activating the boiler safety unit. This prevents dangerous situations while emptying it.
Installing the boiler return increase and safety components
1 Boiler delivery
2 Boiler return
3 Anti-condensation mixing valve
4 Storage tank supply
5 Storage tank return
6 Safety heat exchanger
7 Expansion tank (*)
8 Safety components (**)
(*) The system must be sized according to current European, national and local regulations.
The manufacturer's installation conditions must be met!
(**) Install certied components according to the regulations in force.
The diagrams are purely indicative, therefore they do not have design value.
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