Siemens SINAMICS DCM Manual page 659

Maintenance
11.2 Replacing components
Replacing fans in 210 to 280 A devices
Unlatch the fan cover at the top left and right
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Tilt the fan cover around 30° and pull it out towards you
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Disconnect the fan connector
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Replace the fans.
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Make sure you install the new fans in the correct position:
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The air must be blown upwards (see the arrow on the fan enclosure).
Reconnect the fan connector and replace the fan cover.
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Figure 11-4 Replacing fans in 210 - 280 A devices
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Operating Instructions, 02.2015, A5E34763375/RS-AA/001
SINAMICS DCM DC Converter