BRU8628300-00

Troubleshooting - Single Fan Malfunction

In case of fan malfunction during the service of operation as described in Integrated Protective Features, replace the fan, refer to Replacement immediately within the period as described in the Graph A, refer to
Figure 9

Or

Decide on the load shedding to decrease the operating current in the incomer or coupler down to the current defined as Ipu, refer to Design and Description respecting the actual ambient temperature.

The replacement of the fan is possible in condition the CB/UTX is disconnected with respect to the local protective measures.

Figure 8
Single Fan replacement

Figure 9
Graph A - Time to Temperature Rise Saturation

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