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Sanyo CHDX09663, CHDXR09663, CHDX07263, CHDXR07263* service manual Memo

Models: CHDXR07263* CHDXR09663 CHDX07263 CHDX09663

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Sanyo CHDX09663, CHDXR09663, CHDX07263, CHDXR07263* service manual Memo

Contents

Indoor Units Outdoor UnitsPlease Read Before Starting Check of Density Limit Contents Trouble Diagnosis Control Functions Required settings for Test Run IntroductionOutdoor unit No.1 Selecting an Outdoor Unit for Operation Delayed Start of Outdoor UnitsOutdoor Unit Operating Rules Outdoor Unit Stop RulesCompressor Selection Rules Compressor ControlCapacity TypeInverter Compressor Capacity Control Compressor Capacity ControlForced Compressor Stop Roadmap ControlCompressor Control Protection control Roadmap Control after Trip System Refrigerant Oil Recovery Control Way Valve Adjustment ControlSystem refrigerant oil recovery cycle Start of System Refrigerant Oil Recovery ControlDefrost Control Refrigerant Oil Recovery Control between SystemsDefrost Methods Constraint conditionsOutdoor units where defrost occurs Frost detectionReverse Cycle Defrost OFF Outdoor unit cycle defrostSystem defrost end Defrost end judgment conditionsOil Control Other ControlsOperation of Solenoid Valves Refrigerant Control Valve RCVRefrigerant Balance Valve RBV Gas Purge Valve Bypass Valve BPV Recovery Valve OrvrPower Initialization Types of Electronic Thermostatic Expansion ValvesCHDX07263, CHDX09663 SC Circuit Electronic Control Valve MOV4 Outdoor Fan Control Demand Control Demand setting Control Demand meaningNormal Control Indoor Unit Control of the Electronic Control ValveCooling operation Heating operationSpecial Control Gas tube valve Electronic thermostatic Expansion valve Rap Valve Kit ControlIndoor Unit Refrigerant Oil Self Recovery Control Discharge temperature protection list Discharge TemperatureDischarge sensor failure list Compressor NoCurrent Protection Pressure Sensor Failure Backup Operation Automatic Backup OperationManual Backup S010 switch S010 Compressor 1 backupCompressor 2 backup This setting controls the operation of the drain pump Service Maintenance FunctionsSetting Max. fan mode Effect Amount of capacity reduction Setting DescriptionSetting No Compatible static pressure psi Setting OperationSet at outdoor units that include CCU functions SpeedSnowfall Sensor Functions Outdoor Eeprom Other FunctionsOutdoor unit PCB LED indications in judgment mode Symptoms of insufficient gasSymptoms of overcharge Memo Outdoor Unit Repair Procedures Removing Panels ProceduresRemoving Electrical Component Box and Duct Remove the upper duct remove 3 screws Fig Remove the lower duct remove 2 screws, and a hookDischarging Oil from Oil Separator Discharging Compressor OilDischarging Oil in Compressor Checking the OilBackup operation by disconnecting the outdoor unit Automatic BackupSwitch on outdoor unit control PCB Action If the failed outdoor unit is not the No unitIf the failed unit is the No outdoor unit main unit INV compressor AC1 compressor Setting for backup operation Backup operation settings for each compressorRefrigerant Recovery Procedures from outdoor unit Recovering RefrigerantCarry out refrigerant recovery Following equipment and tools are requiredCooling operation for all units Refrigerant Recovery Procedures Indoor UnitUnit Recovering Refrigerant Recovery of Refrigerant from Entire System Pressure Check for Leakage of Outdoor Unit Checking for Leakage After RepairEvacuating Repaired Outdoor Unit Evacuating SystemIf Refrigerant Has Already Been Charged to Outdoor Unit Charging Compressor OilDPR If Outdoor Unit Has Not Been Charged with Refrigerant JT160G-KTTJ Pumping Out Refrigerant from Outdoor Unit Pumping Out Refrigerant from Outdoor Unit Faulty outdoor unit Other outdoor unit Refrigerant recovery unitCompressor Trouble Diagnosis and Check Methods CompressorCompressor Replacing all compressors in a failed unit Replacing all compressors in a system If a ball valve is installed on the outdoor unit Dry core cleaningCleaning dry core If a ball valve is not installed on the outdoor unitRemoving and Installing Compressors Replacing compressorsRemoval Installation Front view Type Compressor Compressor Replacing multiple compressors Removal Installing the High and Low Pressure Sensors High and Low Pressure SensorsRemoving the High and Low Pressure Sensor Protect the check valves as shown in the figure Replacing 4-way ValveReplacing 4-way Valve Memo Outdoor Unit Maintenance Remote Controller Service Checker Section NN About the outdoor unit maintenance remote controllerSystem diagram OverviewNN Outdoor unit alarm history monitor NN Temperature monitorNN Mode settings FunctionsNN Functions on the ordinary display Cooling/heating change Fig All units start/stop FigAll units test run Fig Double-speedItem code Remarks NN Display functionsSample displays Locations where Œ, , and Ž are displayed as shown in FigDisplay of unit Nos − Meaning of display colonIs not displayed Monitoring Operations Indoor unit NN Display of unit No main unitOperating procedure Outdoor Unit Alarm History MonitorSetting mode 1 Operating procedure Mode SettingsDisplay of ﬁrst 4 digits Display of last 4 digits B are displayed alternatelyList of Item Codes Setting mode 2 Operating procedureMemo Remote Controller Functions Simple Settings Function ProcedureRemote Controller Functions Section Item code Setting data Description List of Simple Setting ItemsDetailed Settings Function Setting data Item code Description List of Detailed Setting ItemsMinutes No forced operation DC fan tap operating Purpose Mode Filter sign on times for each model Simple setting itemsExplanation of operation mode priority change Enabled only in 2WAY Multi heat-pump modelsFunction Cooling or dry Heating Fan Fan not changed Detailed Settings Function Setting range Drying From previous List of Servicing Functions Remote Controller Servicing FunctionsProcedure Test Run FunctionOperates the unit with the thermostat forced on Procedure Outdoor unit sensors Trouble Diagnosis Contents of Remote Controller Switch Alarm Display Possible cause of malfunction Operation Outdoor Unit Control Panel LED Display Blinking OFFDisplay meaning Example Unit No Item code sensor address Discharge temp. TD Check procedureSensor Temperature Relationship Table Alarm code Alarm meaning 2WAY ECO-i Alarm Codes2WAY ECO-i Alarm Codes E12 Alarm Alarm code E06 Alarm Alarm codeE15 Alarm Alarm code S004 S005E20 Alarm Alarm code E16 Alarm Alarm codeE24 Alarm Alarm code CN001E25 Alarm Alarm code E26 Alarm Alarm codeE29 Alarm Alarm code F04, F05 Alarm Alarm code F07, F24 Alarm Alarm code F06, F23 Alarm Alarm codeF12 Alarm Alarm code F08 Alarm Alarm codeF16 Alarm Alarm code F31 Alarm Alarm code F17 Alarm Alarm codeH11, H12 Alarm Alarm code H15 Alarm Alarm code H03, H13 Alarm Alarm codeWhich may damage the compressor H06 Alarm Alarm codeH07 Alarm Alarm code H31 Alarm Alarm code H08, H27 Alarm Alarm codeL10 Alarm Alarm code L04 Alarm Alarm codeL17 Alarm Alarm code L18 Alarm Alarm codeP03, P17 Alarm Alarm code P05 Alarm Alarm code P04 Alarm Alarm codeP16 Alarm Alarm code P22 Alarm Alarm codeFan circuit on the outdoor unit control PCB P26 Alarm Alarm code Blinking inspection display 1 Automatic backupP29 Alarm Alarm code Alarm code Blinking inspection displayAlarm meaning Compressor magnet SW seizing detected Blinking Inspection Display on the Remote ControllerInspection of Parts Output Operation Test PinThermister Characteristics Curve Room temp.sensorIndoor heat exch. coil sensor E1, E3 Compressor discharge gas temp. sensor Memo Service hvac.service@sna.sanyo.com 201002