en
20
N 2 Condens :
664Y5000 • C
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INSTALLATION
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 (à 25°C)
Chlorides
< 125 mg/l
Iron
< 0,5 mg/l
Copper
< 0,1 mg/l
