How to connect DK (Daikin) S21 new Rev.

DK (Daikin) - When connecting to S21 (New Rev. starting Q4 2021)


  1. Connecting CoolPlug to the Daikin unit.
    Connect the S21 cable supplied with the CoolPlug, between the CoolPlug Indoor connector (bottom S21 socket on CoolPlug) and the S21 port on the indoor unit's PCB. Use Daikin's installation manual for the location of the S21 socket on the Daikin indoor PCB.

  2. Connecting CoolPlug to the CooLinkHub
  3. Optional: For connecting the Daikin Wired Remote Controller connect the cable from the controller to CoolPlug WRC (Wired Remote Controller) socket (top S21 socket).


* On some Daikin indoor models, you will need the cable with a smaller 5 pin S21 connector. THis cable is also provided with the CoolPlug as an option were needed.

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