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TP48200A-DT19D1 Telecom Power 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 Heater

Replacing the Heater

Prerequisites

  • You have obtained an ESD wrist strap, a pair of ESD gloves, the cabinet door key, and tools.
  • The new heater is intact.

Make sure the heater circuit breaker is in the off state before replacing it.

Procedure

  1. Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD gloves.
  2. Switch off the heater circuit breaker on the AC PDU.
  3. Record the positions of cables on the heater, and disconnect the cables.
  4. Unscrew and remove the heater, as shown in Figure 4-29.

    Figure 4-29 Removing the heater

  5. Place the heater, and tighten the screws.
  6. Reconnect the cables to the heater based on the recorded information.
  7. Switch on the heater circuit breaker on the AC PDU.
  8. Disconnect the ground cable for the ESD wrist strap, and take off the ESD wrist strap and ESD gloves.

Follow-up Procedure

Pack the removed component, and return it to Huawei local warehouse.

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Updated: 2019-11-27

Document ID: EDOC1000078784

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