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This guide covers the installation of the Daikin BRC1C51 (Wired) and BRC1C61 (Wireless) remote controllers. These are typically used with Daikin SkyAir and VRV systems.

  • Clearance:
  • Wiring entry:

    • | Symptom | Likely Cause | |---------|----------------| | Blank display | No power to indoor unit; wiring loose | | “U4” or “U5” error | Communication error between remote and indoor unit | | Buttons unresponsive | Remote locked (press and hold cancel/back 4s to unlock) | | Wrong temperature reading | Thermistor inside remote affected by wall temperature; check installer settings for remote/local sensor selection |

  • Use solid-core or stranded copper wire as specified (often 0.5–1.5 mm² / 20–16 AWG).
  • Ensure correct polarity where applicable and tighten terminal screws firmly.
  • Keep wiring length and routing per manufacturer limits; avoid running parallel to high-voltage lines.

    • After installation, you may need to calibrate the temperature or lock the buttons. From the "Daikin BRC1C61 installation manual" supplementary sheet:

    To enter Field Settings (Installer Mode):

    To exit, press "Cancel" twice.

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