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TP48200A-HX09A3, TP48200A-HX09A4, TBC300A-DCA3, TBC300A-DCA5, TBC300A-TCA2 Outdoor Power System User Manual

This document describes the DC power systems in terms of their features, configurations, components, and maintenance methods.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing the Internal Fan of the Heat Exchanger

Replacing the Internal Fan of the Heat Exchanger

Prerequisites

  • You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the cabinet door key, and the maintenance tool box.

  • The new fan is intact.

Install the fan according to the airflow directions. Avoid installing the fan in reverse.

Context

You only need to disconnect the power cable for the fan, but do not need to disconnect the AC input.

Procedure

  1. Disconnect the –48V power cable from the UIM02C.

    1. Connect the ground cable to the ESD wrist strap and wear the ESD wrist strap and ESD gloves.
    2. Record the position where the UIM02C panel connects to the signal cable, and then disconnect the signal cable.
    3. Unscrew the UIM02C panel and take out the UIM02C, as shown in Figure 4-5.
    4. Remove the –48V power cable from the UIM02C, as shown in Figure 4-6.

  2. Disconnect the wiring terminal for the fan.
  3. Unscrew the top baffle and remove the baffle, as shown in Figure 4-11.

    Figure 4-11  Removing the top baffle

  4. Record the fan installation direction (see the arrow marks on the fan), remove screws, and take off the fan guard cover and fan, as shown in Figure 4-12.

    Figure 4-12  Removing the internal fan

  5. Place the new fan based on the recorded installation direction (see the arrow marks on the fan), place the fan guard cover, and tighten the screws.
  6. Place the top baffle and tighten the screws.
  7. Connect the wiring terminal for the fan.
  8. Connect the –48V power cable to the UIM02C.
  9. Push in the UIM02C and secure the screws.
  10. Connect the signal cable to the UIM02C panel based on the record made previously.
  11. Disconnect the ground cable from the ESD wrist strap and take off the ESD wrist strap and ESD gloves.
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Updated: 2019-03-05

Document ID: EDOC1000036238

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