CLIVET CPAN-XHE3 - 4.4 Immersed Electrode Humidifier

10
4 - HYDRAULIC CONNECTIONS
SUPPLY WATER
The humidifier must be supplied with mains water having the
following features:
 pressure between 0.1 and 0.8 Mpa (1 – 8 bar)
 temperature between 1 and 40°C
Do not use :
 water treated with softeners: it can corrode the
electrodes and form foam with possible faults/
malfunctionings
 pit, industrial or potentially polluted (chemically or
bacteriologically) water
 disinfectants or anti-corrosive substances mixed with
water, as potentially irritating
Supplying the humidifier with water treated with reverse
osmosis filtering system gives the following advantages:
 reduces limescale deposits
 reduces energy consumptions
 reduces maintenance costs
 increases humidifier duration.
Check that the filter guarantees a water flow rate higher than
the flow rate of the installed humidifier.
DRAINAGE WATER
It can reach a temperature of 100°C.
It contains the same substances of the supply water but in
higher concentration.
As it is not toxic, it can be disposed of with white waters.
4.4 Immersed electrodes humidifier - option
Limit values for the supply water with medium-high conductivity in an
immersed electrode humidifier
min max
Hydrogen ions pH 7 8,5
Specific conductivity at 20°C μS/cm 300 1250
Total dissolved solids TDS mg/l
(1) (1)
Dry residue at 180°C R
180
mg/l
(1) (1)
Total hardness TH mg/l CaCO
3
100
(2)
400
Temporary hardness mg/l CaCO
3
60
(3)
300
Iron + Manganese mg/l Fe+Mn 0 0,2
Chlorides ppm Cl 0 30
Silica mg/l SIO
2
0 20
Residual chlorine mg/l Cl
-
0 0,2
Calcium sulphate mg/l CaSO
4
0 100
Metallic impurities mg/l 0 0
Solvents, diluents, soaps,
lubricants
mg/l 0 0
Limit values for the supply water with medium-low conductivity in an
immersed electrode Humidifier
min max
Hydrogen ions pH 7 8,5
Specific conductivity at 20°C μS/cm 125 500
Total dissolved solids TDS mg/l
(1) (1)
Dry residue at 180°C R
180
mg/l
(1) (1)
Total hardness TH mg/l CaCO
3
50
(2)
250
Temporary hardness mg/l CaCO
3
30
(3)
150
Iron + Manganese mg/l Fe+Mn 0 0,2
Chlorides ppm Cl 0 20
Silica mg/l SIO
2
0 20
Residual chlorine mg/l Cl
-
0 0,2
Calcium sulphate mg/l CaSO
4
0 60
Metallic impurities mg/l 0 0
Solvents, diluents, soaps,
lubricants
mg/l 0 0
(1) Values depending on specific conductivity; in general:
(2) not lower than 200% of the chloride content in mg/l of Cl-
(3) not lower than 300% of the chloride content in mg/l of Cl-
No relation can be demonstrated between water
hardness and conductivity.