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

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Replacing a Smoke Sensor

Replacing a Smoke Sensor


  • 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 smoke sensor is intact.


  1. Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD gloves.
  2. Remove the smoke sensor, as shown in Figure 4-23.
    1. Remove the connected cables from the smoke sensor.
    2. Hold down the button on the smoke sensor and push the smoke sensor in the OPEN direction.
    3. Unscrew the smoke sensor base.

      Figure 4-23  Removing the smoke sensor

  3. Install a new smoke sensor.
    1. Properly place the smoke sensor base and tighten the screws for it.
    2. Properly place the new smoke sensor and press and push it in the CLOSE direction.
    3. Reconnect the removed cables to the smoke sensor.
  4. Disconnect the ground cable from the ESD wrist strap, and take off the ESD wrist strap and ESD gloves.
Updated: 2019-03-05

Document ID: EDOC1000078969

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