Daikin UATYA-BBAY1 Manuel D'installation, D'utilisation Et D'entretien page 56

The acronyms in the diagram have the following meanings:
- WF = mechanical filter;
- WT = shut-off valve.
The humidifier must be fed with water from the public water system having the specifications below:
• pressure ranging between 0.1 and 0.8 MPa (1...8 bar, 14.5...116 PSI);
• temperature ranging between 1 and 40°C;
• instant flow rate equal to the nominal flow rate of the feed solenoid valve/electric pump (see table);
• connection type ¾"G, male.
Humidifier range [kg/h]
Max. input instant flow rate [l/min]
A check must be made that the parameters regarding feed water conductivity are within the limit values listed in the
table.
If the water conductivity is outside the range specified in the table, the cylinder type must be changed.
Description
Hydrogen ion activity (pH)
Specific conductivity at 20 °C (σ
Total dissolved solids (TDS)
Fixed residue at 180 °C (R
Total hardness (TH)
Temporary hardness
Iron + Manganese
Chlorides
Silica
Residual chlorine
Calcium sulphate
Metal impurities
Solvents, thinners, soaps, lubricants
( ) These values depend on specific conductivity. Normally: TDS ~ 0,93 * σ
1
( ) not below 200% of chlorides contained in 1 mg/l of Cl
2
( ) not below 300% of chlorides contained in 1 mg/l of Cl
3
Water must not be treated in softeners.
This may cause the electrodes to get corroded and may induce foaming, with potential problems
affecting regular service.
Translation from original instructions
Packaged Rooftop
56
Fig. 39 Humidifier feeding
Substance
)
R 20 °C
)
180
Fe + Mn
WF WT
3 5-8
0,6 1,2
UM
µS/cm
mg/l
mg/l
CaCO mg/l
3
CaCO mg/l
3
mg/l
Cl ppm
-
SiO mg/l
2
Cl mg/l
CaSO mg/l
4
mg/l
mg/l
; R
20
-
-
10-15-18 25-35-45
1,2
Limits
Min.
7
350
( )
1
( )
1
100( )
2
60( )
3
0
0
0
0
0
0
0
~ 0,65 * σ
180 20
We reserve the right to make changes without any prior notice.
4
Max
8,5
750
( )
1
( )
1
400
300
0,2
30
20
0,2
100
0
0
UATYA
4P645202-2