Cooling Fan; Fan Replacement (Frames A And B) - ABB ACSM1 Hardware Manual

Regen supply modules

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Cooling fan

The actual lifespan of the cooling fan depends on the regen supply module usage

and ambient temperature. Fan failure can be predicted by the increasing noise from

fan bearings and the gradual rise in the heatsink temperature in spite of heatsink

cleaning. If the regen supply module is operated in a critical part of a process, fan

replacement is recommended once these symptoms start appearing. Replacement

fans are available from ABB. Do not use other than ABB-specified spare parts.

Detach the power cable clamp plate and terminal blocks. Release the retaining clips

(arrowed) carefully using a screwdriver. Pull the fan holder out. Disconnect the fan

cable. Carefully bend the clips on the fan holder to free the fan.

Install new fan in reverse order.

Note: The airflow direction is bottom-to-top. Install the fan so that the airflow arrow

points up.

Maintenance

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Acsm1-204