51CENTRALIZEDCONTROL SYSTEMS3) Description of partsCN4CN3REDCN2BLKYELREDY-GRNNo. Name Description''communicationconnectorCommunication terminal that connects to outdoor unit /''PG&37Power connector DC12VCommunicationLEDCommunication indicator LED(Left LED 3 : No functionMiddle RED : Blinks during it communicates with upperlevel controllerRight Y-GRN : Blinks during it communicates with ERV)Address settingswitch Sets the address of interface moduleSoftware updateconnector6TJOHUIJTDPOOFDUPS *OUFSGBDFNPEVMFTPGUXBSFDBOCFupdated7-segment Displays the communication status between interfacemodule and ERVUpper level controllercommunicationchannelCommunication terminal to upper level controller R1/R2DIP switchSW41 2 1 2SW5SW5 - No useSW4 Description1 0'' "VUPBEESFTTTFUUJOH TXJUDINVTUCFEPXO0/ .BOVBMBEESFTTTFUUJOH TXJUDINVTUCFVQ20''/FXDPNNVOJDBUJPOVQQFSMFWFMDPOUSPMMFS↔Conventional communication ERV)(Conventional communication upper levelcontroller ↔ New communication ERV)ON (New communication upper level controller ↔New communication ERV)8IFOVQHSBEJOHUIFQSPHSBN 48NVTUCFTFUUP0/status before proceeding upgrade regardless of the installationcondition."GUFSDPNQMFUJOHUIFEPXOMPBE TFUUIF%*1TXJUDIcorrectly according to installation condition before supplyingthe power.; Note8IFODPOOFDUJOHUPUIFDPOWFOUJPOBMDPNNVOJDBUJPODPOUSPMMFS BEESFTTNVTUCFTFUNBOVBMMZSFHBSEMFTTUPUIF48TFUUJOH8IFOTFUUJOHUIFBEESFTTNBOVBMMZ make sure to set the address that is not assigned to other deivce already.8IFODPOOFDUJOHUPUIFOFXDPNNVOJDBUJPODPOUSPMMFS 48NVTUCF0/UPTFUUIFBEESFTTNBOVBMMZ BOENBLFTVSFUPTFUUIFBEESFTTUIBUJTOPUBTTJHOFEUPother compatible interface module or outdoor units.