4. Limit the carbonate concentration in the water
- The fill water must be softened if its hardness is higher than 20° fH (11,2° dH).
- Check regularly the water hardness and enter the values in the service log.
- Water hardness table :
Water hardness
°fH
°dH
mmolCa(HCO3)2 / l
Very soft
0 - 7
0 - 3.9
0 - 0.7
Soft
7 - 15
3.9 - 8.4
0.7 - 1.5
Fairly hard
15 - 25
8.4 - 14
1.5 - 2.5
Hard
25 - 42
14 - 23.5
2.5 - 4.2
Very hard
> 42
> 23.5
> 4.2
5. Control the water parameters
- In addition to the oxygen and the water hardness, other parameters of the water must be
checked.
- Treat the water if the measured values are outside the range.
acidity
6,6 < pH < 8,5
Conductivity
< 400 μS/cm (at 25°C)
Chlorides
< 125 mg/l
Iron
< 0,5 mg/l
Copper
< 0,1 mg/l
en
21
EN
InstallatIon
664Y5900 • A
Содержание BNE 2 Condens
Страница 1: ...EN 21 8 kW BNE 2 Condens 664Y5900 A Installation operation and maintenance instructions ...
Страница 22: ...EN en 22 Installation 664Y5900 A Boiler Preparation 5 3 4 1 2 6 ...
Страница 23: ...en 23 EN Installation 664Y5900 A 9 8 10 11 7 1 2 ...
Страница 24: ...EN en 24 Installation 664Y5900 A Burner installation 2 6 3 4 90 mm 5 1 1 2 ...
Страница 25: ...en 25 EN Installation 664Y5900 A 8 2 1 7 9 ...
Страница 40: ...EN en 40 664Y5900 A Declaration of conformity EC ...
Страница 41: ...en 41 EN 664Y5900 A Declaration of conformity RD 17 7 2009 ...
Страница 42: ...EN en 42 664Y5900 A Markings Labels Pending approval ...