Cooling circuit and coolant properties
13.5 Using heat exchangers
Booksize Power Units
784 Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
Air-to-water heat exchanger
If no process water is available, but it is nonetheless best to use water-cooled Line Modules,
an air-to-water cooling system can be used. The temperature of the ambient air must not be
excessively high, e.g. > 35°C (in accordance with the technical data for the air-to-water heat
exchanger).
During setup, you must ensure that a primary air cooling circuit and not a process water
circuit is installed.
Measures to prevent excessive cooling must only be taken on the secondary side by means
of closed-loop temperature control involving a thermostat or a solenoid valve.
Figure 13-5 Air-to-water heat exchanger
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