Field Settings SiBE121135_A253 Trial Operation and Field Settings5.2 RA Indoor Unit5.2.1 Model Type SettingARC466A6, ARC466A9 This remote controller is common to the heat pump model and cooling only model. The heating operation will not be available when the jumper on the left side is cut. Replacethe remote controller if you cut the jumper on the left side.ARC452A1, ARC452A3 This remote controller is common to the heat pump model and cooling only model. Make sure the DIP switch is set to the correct side. The heating operation will not beavailable when the DIP switch is set to the right side.5.2.2 When 2 Units are Installed in 1 RoomOutline When 2 indoor units are installed in 1 room, 1 of the 2 indoor units and the correspondingwireless remote controller can be set for different address.Both the indoor unit PCB and the wireless remote controller need alteration.The method of address setting varies depending on the type of indoor unit and the series ofwired remote controller. Refer to the following pages for the appropriate indoor unit and wirelessremote controller.Wall MountedType(1) Remove the front grille.(2) Remove the electrical box.(3) Remove the shield plate of the electrical box.(4) Cut the address setting jumper JA on the PCB.Never cut this jumper.(R18451)H/P C/ODIP switch(R12755)