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Preparations for use
4.5 Coolant specification
NOTICE
Corrosion due to insufficient cooling water quality
The materials used in the cooler are selected to match the cooling water quality for which the
air-water cooler was ordered. The cooler cannot be simply used without taking any other
measures if other water conditions apply. If the cooling water quality is unsuitable, the air-to-
water heat exchanger may suffer corrosion and fail.
● The chemical composition of the cooling water must comply with the configuration
● If the cooling water quality fails to satisfy the quality stated on the order, please contact
● Please observe the recommended water quality in the operating instructions for the air-
NOTICE
Overheating of the machine as a result of additives in the cooling water
Additives for antifreeze or corrosion protection can have a negative impact on the heat
transporting properties. The machine can overheat.
● Only operate the machine with the contractually agreed cooling water quality.
See also
Service and Support (Page 177)
4.5.2
Coolant specification (M85 "stainless steel version" option)
Drinking or municipal water (option M85: Stainless steel version)
pH value
Chloride ions Cl
Sulfate ions SO
Nitrate ions NO
Dissolved solids
Total hardness
Electrical conductivity
Maximum size of dissolved substances
38
specifications.
the Service Center.
water cooler.
-
2-
4
+
3
6.5 ... 9.5
< 200 mg/l
< 240 mg/l
< 50 mg/l
< 340 mg/l
< 1.7 mmol/l
< 2000 μS/cm
< 0.1 mm
Operating Instructions 08/2017
SIMOTICS FD 1MH1
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