B.2 Specification of the untreated water
Designation Value
Temperature range +5° C ... +38° C
recommended temperature range:
+25° C to +30° C
Water pressure min. 1.8 bar ... max. 6.0 bar
recommended water pressure: 2.5 bar
Sea water No
Permitted water impurities
Size of entrained particles <1.0 mm
Dissolved solids <350 mg/l
Hydrogencarbonate 70 ... 300 mg/l
Sulfate <70 mg/l
Hydrogencarbonate/sulphate >1.0
Electrical conductivity 10 ... 500 µS/cm
pH value 7.5 ... 9.0
Ammonium <2 mg/l
Chloride <300 mg/l
Free chlorine gas <1 mg/l
Sulphite <1 mg/l
Hydrogen sulfide <0.05 mg/l
Free (aggressive) carbonic acid <5 mg/l
Total hardness 4,0 ... 8.5 dH
Nitrate <100 mg/l
Iron <0.2 mg/l
Aluminum <0.2 mg/l
Manganese <0.2 mg/l
Technical data
B.2 Specification of the untreated water
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A 143
Siemens Drives & PLCs
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