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5.4 Water connection
Use only hoses supplied with the device (never use second-hand hoses).
Before connecting the device to the water supply system, the analysis of water quality
should be performed. Manufacturer recommends the following parameters of water
quality:
Water temperature (T): max. 60
pH value:
Physical
contamination:
Chlorides:
Chlorine:
If the water hardness exceeds 9 - 18 °dH (German degrees of hardness), the use of
water softener is required.
Furthermore, when checking the water quality, the pressure of water supply network must
be taken into account. This parameter determines the correct operation of the device.
Water pressure should correspond to the following values:
MIN
Water
bar
pressure
If the water pressure is above the recommended value, it is required to install the
reducing valve between the water supply network and the water connection of the
device (fig. 2 at the beginning of the operating manual).
If the water pressure is below the recommended value, it is required to install a booster
pump between the water supply network and the water connection of the device (fig. 3).
Fig. 2. Direct connection of the hose to the water supply installation.
Fig. 3 Connection of the booster pump
S
Shut-off valve
E
Solenoid valve
F
Filter
- 40 -
6.5 – 7.5
Ø < 0.08 mm
max. 150 mg/l
0.2 – 0.5 mg/l
kPa
kg/cm
2
200
2,03
Total water
hardness:
Conductivity:
MAX.
2
psi
bar
29
3.5
H
Hose
B
Booster pump
5 - 10 °fH (French
degrees)
7 - 14 °fH (English
degrees)
9 - 18 °fH (German
degrees)
400 – 1,000 μS/cm
2
kPa
kg/cm
350
3.56
psi
50.76
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