Memo | Sanyo CHDXR09663, CHDXR07263, CHDX09663, CHDX07263 instruction

– MEMO –

5 - 32

Image 141

Sanyo CHDXR09663, CHDXR07263, CHDX09663, CHDX07263 service manual Memo

Contents

Indoor Units Outdoor Units Please 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 Rules Compressor Selection Rules Compressor ControlCapacity Type Inverter Compressor Capacity Control Compressor Capacity ControlForced Compressor Stop Roadmap Control Compressor 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 Control Defrost Control Refrigerant Oil Recovery Control between SystemsDefrost Methods Constraint conditions Outdoor units where defrost occurs Frost detectionReverse Cycle Defrost OFF Outdoor unit cycle defrost System defrost end Defrost end judgment conditions Oil Control Other Controls Operation of Solenoid Valves Refrigerant Control Valve RCVRefrigerant Balance Valve RBV Gas Purge Valve Bypass Valve BPV Recovery Valve Orvr Power Initialization Types of Electronic Thermostatic Expansion ValvesCHDX07263, CHDX09663 SC Circuit Electronic Control Valve MOV4 Outdoor Fan Control Demand Control Demand setting Control Demand meaning Normal Control Indoor Unit Control of the Electronic Control ValveCooling operation Heating operation Special Control Gas tube valve Electronic thermostatic Expansion valve Rap Valve Kit Control Indoor Unit Refrigerant Oil Self Recovery Control Discharge temperature protection list Discharge TemperatureDischarge sensor failure list Compressor No Current 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 Description Setting No Compatible static pressure psi Setting OperationSet at outdoor units that include CCU functions Speed Snowfall Sensor Functions Outdoor Eeprom Other Functions Outdoor unit PCB LED indications in judgment mode Symptoms of insufficient gasSymptoms of overcharge Memo Outdoor Unit Repair Procedures Removing Panels Procedures Removing Electrical Component Box and Duct Remove the upper duct remove 3 screws Fig Remove the lower duct remove 2 screws, and a hook Discharging Oil from Oil Separator Discharging Compressor OilDischarging Oil in Compressor Checking the Oil Backup operation by disconnecting the outdoor unit Automatic BackupSwitch on outdoor unit control PCB Action If the failed outdoor unit is not the No unit If the failed unit is the No outdoor unit main unit INV compressor AC1 compressor Setting for backup operation Backup operation settings for each compressor Refrigerant Recovery Procedures from outdoor unit Recovering RefrigerantCarry out refrigerant recovery Following equipment and tools are required Cooling operation for all units Refrigerant Recovery Procedures Indoor Unit Unit Recovering Refrigerant Recovery of Refrigerant from Entire System Pressure Check for Leakage of Outdoor Unit Checking for Leakage After Repair Evacuating Repaired Outdoor Unit Evacuating System If Refrigerant Has Already Been Charged to Outdoor Unit Charging Compressor Oil DPR 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 unit Compressor Trouble Diagnosis and Check Methods Compressor Compressor 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 cleaning Cleaning dry core If a ball valve is not installed on the outdoor unit Removing 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 Valve Replacing 4-way Valve Memo Outdoor Unit Maintenance Remote Controller Service Checker Section NN About the outdoor unit maintenance remote controllerSystem diagram Overview NN Outdoor unit alarm history monitor NN Temperature monitorNN Mode settings Functions NN Functions on the ordinary display Cooling/heating change Fig All units start/stop FigAll units test run Fig Double-speed Item code Remarks NN Display functions Sample displays Locations where Œ, , and Ž are displayed as shown in Fig Display of unit Nos − Meaning of display colonIs not displayed Monitoring Operations Indoor unit NN Display of unit No main unit Operating procedure Outdoor Unit Alarm History Monitor Setting mode 1 Operating procedure Mode SettingsDisplay of ﬁrst 4 digits Display of last 4 digits B are displayed alternately List of Item Codes Setting mode 2 Operating procedure Memo Remote Controller Functions Simple Settings Function ProcedureRemote Controller Functions Section Item code Setting data Description List of Simple Setting Items Detailed Settings Function Setting data Item code Description List of Detailed Setting Items Minutes No forced operation DC fan tap operating Purpose Mode Filter sign on times for each model Simple setting items Explanation 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 Functions Procedure 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 procedure Sensor Temperature Relationship Table Alarm code Alarm meaning 2WAY ECO-i Alarm Codes 2WAY ECO-i Alarm Codes E12 Alarm Alarm code E06 Alarm Alarm codeE15 Alarm Alarm code S004 S005 E20 Alarm Alarm code E16 Alarm Alarm codeE24 Alarm Alarm code CN001 E25 Alarm Alarm code E26 Alarm Alarm codeE29 Alarm Alarm code F04, F05 Alarm Alarm code F07, F24 Alarm Alarm code F06, F23 Alarm Alarm code F12 Alarm Alarm code F08 Alarm Alarm code F16 Alarm Alarm code F31 Alarm Alarm code F17 Alarm Alarm code H11, H12 Alarm Alarm code H15 Alarm Alarm code H03, H13 Alarm Alarm code Which may damage the compressor H06 Alarm Alarm code H07 Alarm Alarm code H31 Alarm Alarm code H08, H27 Alarm Alarm code L10 Alarm Alarm code L04 Alarm Alarm codeL17 Alarm Alarm code L18 Alarm Alarm code P03, P17 Alarm Alarm code P05 Alarm Alarm code P04 Alarm Alarm code P16 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 display Alarm meaning Compressor magnet SW seizing detected Blinking Inspection Display on the Remote Controller Inspection of Parts Output Operation Test Pin Thermister Characteristics Curve Room temp.sensorIndoor heat exch. coil sensor E1, E3 Compressor discharge gas temp. sensor Memo Service hvac.service@sna.sanyo.com 201002