•
Presence of a mechanical filter in the supply water line;
•
Water temperature and pressure within the allowed values;
•
Drain hose resistant to temperatures of 100°C;
•
Minimum inside diameter of the drain hose of 25 mm;
•
Minimum slope of the drain hose greater than or equal to 5°;
•
Electrically non-conductive sleeve;
•
Presence of a drain trap in the drain hose.
WARNING
When installation is completed, flush the supply hose for around 30 minutes by
piping the water directly into the drain without sending it into the humidifier. This
will eliminate any scale or processing residues that may block the fill valve or cause
foam when boiling.
Supply water
The humidifier must be supplied with mains water, with the following characteristics:
•
Pressure between 0.1 and 0.8 MPa (1 to 8 bar, 14.5 to 116 psi);
•
Temperature between 1 and 40°C;
•
Instant flow rate not lower than the rated fill solenoid valve flow rate (0.6 l/min);
•
Connection type 3/4” G Male.
Table 11
Limit values for the supply water with medium-high conductivity in an immersed electrode humidifier.
Substance
Minimum
Maximum
Potential of hydrogen pH
7
8.5
Specific conductivity at 20°C
σ
R, 20°C
300
1250
μ
S/cm
Total dissolved solids TDS
*
*
mg/l
Dry residue at 180°C
R
180
*
*
mg/l
Total hardness TH
CaCO
3
100 **
400
mg/l
Temporary hardness
CaCO
3
60 ***
300
mg/l
Iron + Manganese
Fe + Mn
0
0.2
mg/l
Chlorides
Cl
0
30
ppm
Silica
SiO
2
0
20
mg/l
•19•
INNOV@-DHF-IOM-0922-EN
