Sanyo CL0971, C1271, CL1271 Case of Compressor Malfunction, Procedure for Replacing Compressor

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11-5. In Case of Compressor Malfunction

CAUTION

Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as possible.

Use only the tools indicated exclusively for R410A. See "11-3. Tools Specifically for R410A."

11-5-1. Procedure for Replacing Compressor

(1) Recovering refrigerant

Any remaining refrigerant inside the unit should not be released to the atmosphere, but recovered using the refrigerant recovery unit for R410A.

Do not reuse the recovered refrigerant, since it will contain impurities.

(2) Replacing Compressor

Soon after removing seals of both discharge and suction tubes of the new compressor, replace it quickly.

(3) Checking for sealing

Use nitrogen gas for the pressurized gas, and never use a refrigerant other than R410A. Also do not use oxygen or any flammable gas.

(4) Evacuation

Use a solenoid valve-installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption, the valve will prevent the pump oil from flowing back.

The equipment may be damaged if moisture remains in the tubing, thus carry out the evacuation thoroughly.

When using a vacuum pump with exhaust air volume more than 0.883 cu.ft./min. and ultimate vacuum pressure rate of 50 micron Hg.

Standard time for evacuation

(1)Recover refrigerant

OK

(2)Replace compressor

OK

(3)Check for sealing

OK

(4)Evacuation

OK

(5) Recharge

Length of tubing

Less than 33 ft. (10 m)

More than 33 ft. (10 m)

Evacuation time

More than 10 minutes

More than 15 minutes

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Contents KS0971 + C0971 + CL0971 KS1271 + C1271 + CL1271 DC Inverter Split System AIR ConditionerPlease Read Before Starting Table of Contents Checking Electrical Components Models KS0971 + CL0971 KS1271 + CL1271 Operating RangeModels KS0971 + C0971 KS1271 + C1271 Unit Specifications SpecificationsKS0971 C0971C1271 KS1271CL0971 CL1271 Indoor Unit Major Component SpecificationsCB-KS1271 Microprocessor 250V 3A Outdoor Unit C0971 Outdoor UnitOutdoor Unit C1271 Outdoor Unit CL0971 Outdoor Unit CL1271 Other Component Specifications Indoor Unit KS0971 Dimensional DataCL0971 CL1271 Outdoor Unit C0971 C1271Refrigerant Flow Diagram Refrigerant Flow DiagramInsulation of Refrigerant Tubing After a tube has been insulated To break or crackPerformance Data Temperature ChartsIndoor Unit KS0971  Outdoor Unit CL0971 Indoor Unit KS1271  Outdoor Unit C1271 Indoor Unit KS1271  Outdoor Unit CL1271 C0971 / CL0971 Power Supply 115V Single Phase 60Hz Cooling CapacityCooling Capacity C1271 / CL1271 Cooling Capacity Low Ambient 11,900 BTU/h Room air temp F 26.7C Fan speed High Horizontal distance ft Air Throw Distance ChartsCooling Vertical distance ft Air Axis Vertical C0971 Cooling Electrical CharacteristicsElectrical Data C1271 Cooling CL12718FA2-5257-71600-0 Electric Wiring DiagramsIndoor Unit KS0971 KS1271 WHT RED Outdoor Unit C0971 C1271Outdoor Unit CL0971 CL1271 Address Setting of the Remote Control Unit MaintenanceHow to Connect How to DisconnectOperation Functions FunctionsEmergency operation PAM- controlLamp colors Timer backupProtective Functions Compressor discharge temperature controlFreeze prevention CT Peak current cut-off controlMethod of Self-Diagnostics TroubleshootingPrecautions before Performing Inspection or Repair Self-diagnostics Lamps Checking the Indoor and Outdoor Units Using the TEST/T-RUN terminalsReplace the controller Replace the circuit board or the fuseOff Blinking Illuminated Serial Communication Error Identification ProcedureBefore the Operation Condition E01Terminal board Outdoor Unit Condition E12 Outdoor Fan Motor Trouble Diagnosis of Fan MotorElectromagnetic interference Noise Malfunction and Electromagnetic InterferenceNoise malfunction Checking Electrical Components Power Supply CordMeasurement of Insulation Resistance Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy Characteristics of New Refrigerant R410A Refrigerant R410A Special Precautions When Servicing UnitWhat is New Refrigerant R410A? CharacteristicsChecklist before Servicing Tools Specifically for R410A Tubing Installation ProceduresCase of Compressor Malfunction Procedure for Replacing CompressorUnit. This may cause Never charge a large amountDamage to the compressor ExampleRecharging Case Refrigerant is LeakingWelding leaking points Charging Additional Refrigerant When Tubes are ExtendedRetro-Fitting Existing Systems Use of Existing UnitsKS0971 + C0971 + CL0971 KS1271 + C1271 + CL1271 Features Product Information ContentsAlert Symbols Electrical Requirements Installation LocationSafety Instructions Names of Parts This lamp lights during operation in the Quiet mode Green and FAN green modeUnit Display and Operation Button Quiet lampRemote Control Unit Display HR. Timer button Remote Control UnitAdvance button TransmitterSet times every day. For details, see Setting the Timer Setting to provide a quieter operating soundAir conditioner reduces the humidity in the room Air conditioner makes the room coolerACL button ALL Clear Using the Remote Control UnitHow to Install Batteries Using the Remote Control Unit Press the Mode selector button and select the desired mode Operation with the Remote Control UnitPress the TEMP. setting buttons to change the temperature Set the FAN Speed selector button to the setting you wantPress the ON/OFF operation button Operation with the Remote Control UnitNight Setback Mode is used for saving energy Cooling and DRY ModeQuiet Mode Clicking sound is heard from the air conditioner Power failure during operationSpecial Remarks Operation Indication Setting the TimerExample To set to 1030 pm How to set the on time Example To start operation at 710 am Setting the TimerTo cancel a timer program Press the Cancel button 1030 pm 710 am 1100 am Present timeSetting procedure Using the 1-Hour OFF TimerCancellation procedure Operation together with the Daily ON/OFF Repeat TimerSetting the airflow manually Adjusting the Airflow DirectionHorizontal Sweep functionWhen the air conditioner is not running Care and CleaningOperation without the Remote Control UnitCleaning Care and CleaningIntake grille Press in the bottom rightWashing the grille with water Air clean filter How to clean the air clean filterFilter Negative ion generator metal electrodes inside plastic caseTrouble Possible Cause Remedy TroubleshootingOperating Range Appendix B Installation Instructions Contents Installation InstructionsPlease Read Before Starting Accessories Supplied with Unit Table Tools Required for Installation not suppliedGeneral Optional Copper Tubing KitAdditional Materials Required for Installation Installation Site SelectionBaffle Plate for the Outdoor Unit CLxx models only Air Intake Baffle Air Discharge Baffle Recommended dimensions of the baffle platesFor Air Intake For Air DischargePrecautions for installation Installation procedure Air Intake BaffleMake a Hole How to Install the Indoor UnitRemove the Rear Panel from the Unit If Block, Brick, Concrete or Similar Type Wall Install the Rear Panel on the WallIf Wooden Wall How to remove the grille Remove the Grille to Install the Indoor UnitHow to replace the grille Be sure to wear work glovesShape the Indoor Side Tubing Wiring Instructions General precautions on wiringDisconnect switch may be required by national or local codes Recommended Wire Length and DiameterWiring Instructions for Inter-unit Connections Fore, be sure all wiring is Loose wiring may causeHow to connect wiring to the terminal For Indoor Unit For Outdoor Unit For solid core wiring or F-cableRight-side tubing MountingDrain cap Switching drain hose and drain capLeft-side tubing Tubing and wiring to the out Do not supply power toTo unmount indoor unit Unit or operate it until allWiring Instructions for the Outdoor Unit How to Install the Outdoor UnitFirst refer to . Installation Site Selection Use of the Flaring Method Flaring Procedure with a Flare ToolRefrigerant Tubing Finishing the Installation Connecting Tubing between Indoor and Outdoor UnitsInsulation of Refrigerant Tubing To prevent heat loss and wet floors due to dripping of conAir Purging Hex wrench before Be sure to completely insertThis may cause the refriger Ant gas to leak. In order toHow to Test Run the Air Conditioner Pump Down Basic Functions of the Service ValvesMounting on a Wall Remote Control Unit Installation PositionAddress Setting of the Remote Control Unit Address Switch

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