DeDietrich Innovens MCA 15, Инструкция по установке и обслуживанию

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4.12 Filling the system
4.12.1. Water treatment
Treat the water in the installation to limit corrosion, calcium and
limescale deposits, sludge, microbiological contamination, etc..
CAUTION
An uncleaned installation or an installation using water of
unsuitable quality may bring about the cancellation of the
warranty.
For an optimum functioning of the boiler, the water of the installation
must comply with following characteristics:
Output (kW)
≤ 70
70 - 200 200 - 550
≥ 550
Degree of acidity (water non-treated) pH 7 - 9 7 - 9 7 - 9 7 - 9
Degree of acidity (water treated) pH 7 - 8.5 7 - 8.5 7 - 8.5 7 - 8.5
Conductivity at 25°C µS/cm ≤ 800 ≤ 800 ≤ 800 ≤ 800
Chlorides mg/l ≤ 150 ≤ 150 ≤ 150 ≤ 150
Other components mg/l < 1 < 1 < 1 < 1
Water hardness °f 1 - 35 1 - 20 1 - 15 1 - 5
°dH 0.5 - 20.0 0.5 - 11.2 0.5 - 8.4 0.5 - 2.8
mmol/l 0.1 - 3.5 0.1 - 2.0 0.1 - 1.5 0.1 - 0.5
Recommendations:
4
Reduce the quantity of oxygen in the heating circuit to the
minimum.
4
Limit the annual quantity of water added to the circuit to 5% of the
total water volume in the installation.
4
New installation
- Completely clean the installation of all residues (plastic waste,
installation parts, oils, etc.).
- Use an inhibitor in combination with a softener.
4
Existing installation
If the water quality in the installation is insufficient, several options
are possible:
-
Install one or more filters.
-
Completely clean the installation to evacuate any impurities and
deposits in the heating circuit. To do this, a considerable and
controlled flow rate is required.
-
Clean the boiler (dirt, deposits, calcium, etc.).
De Dietrich Thermique recommends the following products:
Manufacturer Product Function
Fernox Restorer Universal cleaner for existing
installations
Protector protective product
Alphi 11 Antifreeze and inhibitor
4. Installation MCA 15 - MCA 25 MCA 25/28 MI
54 29/04/2010 - 300022146-001-B