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TP48200A-HT19C4-1, TBC300A-TCA2 Outdoor Power System User Manual

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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 Circulation Fan of the Heat Exchanger

Replacing the Internal Circulation 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 a tool kit.

  • The new fan is intact.

Procedure

  1. Disconnect the power cable from the UIM02C.

    1. Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and ESD gloves.
    2. Record the position where the UIM02C connects to the signal cables, and then disconnect the signal cables.
    3. Unscrew and then take out the UIM02C, as shown in Figure 4-8.
    4. Disconnect the -48 V power cable from the UIM02C backplane, as shown in Figure 4-9.

  2. Disconnect the transfer terminal from the internal air circulation fan.
  3. Remove the internal circulation fan.
    1. Record the position where cables connect to the internal circulation fan, and then disconnect the cables.
    2. Remove the cover from the internal circulation fan, as shown in Figure 4-11.

      Figure 4-11  Removing the cover from the internal circulation fan

    3. Remove the fixing plate from the internal circulation fan, as shown in Figure 4-12.

      Figure 4-12  Removing the fixing plate from the internal circulation fan

    4. Remove the internal circulation fan, as shown in Figure 4-13.

      Figure 4-13  Removing an internal circulation fan

  4. Install a new internal circulation fan.
    1. Secure the internal circulation fan to the fixing plate using screws.
    2. Install the fixing plate.
    3. Install the cover for the internal circulation fan.
    4. Connect the removed cables to the internal circulation fan based on the recorded positions.
  5. Connect the transfer terminal.
  6. Connect the power cable to the UIM02C.
    1. Reconnect the -48 V power cable to the UIM02C backplane.
    2. Push in the UIM02C and tighten the screws.
    3. Reconnect signal cables to the UIM02C panel based on the recorded positions.
    4. 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: EDOC1000078969

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