Insufficient Cooling Water Quality; Interlock Circuit For The External Fan Motor - Siemens SIMOTICS HV M Operating Instructions Manual

Electric motor

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Preparations for use

4.4 Insufficient cooling water quality

4.4

Insufficient cooling water quality

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.

For machines with external fans, install an interlock circuit that prevents the main machine

being switched on if the external fan is not operational.

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