21EnglishInstallation/Service modeStep 1 Step 2 Step 3 Description DefaultIndoor UnitOptionAddress Main address 00 to 4F -RMC address 00 to FE -Product Option 2)*Refer to the installationmanual of theconnected indoor unit.-InstallationOption 1 2)* -InstallationOption 2 2)* -MCU Port MCU address 00 to 15 -MCU Port A to F -1)* Power Master Reset is a setting needed to supply optimized power to wired remote controller whenmultiple indoor units are connected to wired remote controller in a group.2)* The total option codes are 24 digits. You can set six digits at a time and it is distinguished by pagenumber. Press the button to move to the next page.