Air-To-Water Heat Exchanger - Siemens SINAMICS S120 Equipment Manual

Internal Liquid Cooling

9.8 Air-to-Water Heat Exchanger

9.8 Air-to-Water Heat Exchanger
9.8
If a process water network is not installed but it is nonetheless best to use water-cooled
frequency converters, 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
specifications 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 supercooling must only be taken on the secondary side by means of
temperature closed-loop control, a thermostat, or a solenoid valve.
Figure 9-2
9-6
Air-to-water heat exchanger
Equipment Manual Booksize Cold-Plate Power Sections
Manual, (GH4), Edition 06.2005, 6SL3097-2AJ00-0BP2