Mitsubishi Electric MECH-iS-G07 Instructions For Installation, Use And Maintenance Manual page 69

7 LINKS AND CONNECTIONS
Check that the water contained in the water circuit, which goes through the heat exchangers of the machine (evaporators, condensers,
desuperheaters, recovery units), meets the following requirements throughout the life of the installation:
PARAMETER
1
2 Electrical conductivity
3
4
5 Hydrogen carbonate (HCO
6 (HCO
7 Solphate (SO4
8 Hydrogen sulfide (H
9
10
11 Free Chlorine (Cl
12 Free carbon dioxide (CO
13
14 Ammonium (NH
15
16
17 Manganese (Mn)
* < 0,1 with low salt content; < 0,02 with high salt content.
Installation, use and maintenance manual - Translation of the original instructions
pH
Total hardness
Chloride (Cl-)
-)
3
-) / (SO4 -)
3 2
-)
2
S)
2
Nitrate (NO -)
3
Oxigen
)
2
)
2
Ammonia (NH )
3
+)
4
Iron (Fe)
Aluminum (Al)
Table 9: water values of the water circuit.
Preliminary
UNIT
-
μS/cm
°dH
ppm
ppm
ppm/ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
EN
REQUIREMENT
7,5 - 9
10 - 500
4,0 - 8,5
< 100
70 - 300
> 1,0
< 70
< 0,05
< 100
< 0,02 *
< 0,5
< 5
< 0,5
< 2
< 0,2
< 0,2
< 0,05
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