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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 External Circulation Fan of the Heat Exchanger

Replacing the External Circulation Fan of the Heat Exchanger

Prerequisites

  • Prepare an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the cabinet door key, and a maintenance tool kit.
  • Check that the new fan is intact.

Procedure

  1. Disconnect the power cable from the UIM02C.

    1. Connect the ground cable for 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, 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 external circulation fan.
  3. Removing the external circulation fan.
    1. Record the position where cables connect to the external circulation fan, and then disconnect the cables.
    2. Remove the cover from the external circulation fan, as shown in Figure 4-14.

      Figure 4-14  Removing the cover from the external circulation fan

    3. Remove the fan fixing plate from the external circulation fan, as shown in Figure 4-15.

      Figure 4-15  Removing the fixing plate from the external circulation fan

    4. Remove the external circulation fan, as shown in Figure 4-16.

      Figure 4-16  Removing the external circulation fan

  4. Install a new external circulation fan.
    1. Secure the external circulation fan to the fan fixing plate using screws.
    2. Install the fan fixing plate.
    3. Install the cover for the external circulation fan.
    4. Connect the removed cables to the external circulation fan based on the recorded positions.
  5. Connect the transfer terminal.
  6. Connect the power cable for 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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