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Electrolux KSV26HRC Service Manual

Kelvinator inverter split system.
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ELECTROLUX HOME PRODUCTS PTY LTD
ABN 51 004 762 341
Technical Publication Nº KSSSI116

SERVICE MANUAL

Copyright 2012 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services
KELVINATOR
INVERTER

SPLIT SYSTEM

AIR
CONDITIONER
Issue: 4
Date: 12/12
MODELS:
KSV26HRC
KSV35HRC
KSV53HRC
KSV62HRC
KSV70HRC
KSV80HRC
Page 1 KSSSI71

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   Summary of Contents for Electrolux KSV26HRC

  • Page 1: Split System

    ELECTROLUX HOME PRODUCTS PTY LTD ABN 51 004 762 341 Issue: 4 Technical Publication Nº KSSSI116 Date: 12/12 KELVINATOR INVERTER SPLIT SYSTEM CONDITIONER SERVICE MANUAL MODELS: KSV26HRC KSV35HRC KSV53HRC KSV62HRC KSV70HRC KSV80HRC Page 1 KSSSI71 Copyright 2012 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services...
  • Page 2 Index: 1. Required Qualifications: refer to Page 4. 2. Precautions: refer to Pages 5 to 9. Warnings relating to personal & product safety. Earth Continuity Testing. 3. Electrostatic Discharge: refer to Pages 10 to 12. Understanding Electrostatic Discharge. When Working With ESD Sensitive Items in Electrostatic Work Station. When Working With ESD Sensitive Items in Field Service.
  • Page 3 9. Safe Electrical Working Practices: refer to Page 55. 10. Positive Lock Terminals: refer to Page 56. 11. Capacitor Discharge: refer to Page 57. 12. Troubleshooting: refer to Pages 58 to 109. Indoor & Outdoor Unit Error Code Display index. LED Flash Code Sequence Description (Indoor &...
  • Page 4 Required Qualifications: Certificate in Engineering Refrigeration & Air Conditioning (Basic Trade). Refrigerant Handling Licence. Page 4 KSSSI116...
  • Page 5 Precautions: Warning: Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair. Working on the equipment that is connected to a power supply can cause an electrical shock. If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not touch any electrically charged sections of the equipment.
  • Page 6 Warning: Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug. Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or fire. Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock.
  • Page 7 Warning: Incorrect use of the installation frame and improper installation can cause the equipment to fall, resulting in injury. If the unit is not securely mounted, it can fall and cause injury. Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work.
  • Page 8 Warning: Do not mix air or gas other than the specified refrigerant (R-410A / R22) in the refrigerant system. If air enters the refrigerating system, an excessively high pressure results, causing equipment damage and injury. If the refrigerant gas leaks, be sure to locate the leak and repair it before charging the refrigerant.
  • Page 9 Warning: Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
  • Page 10 Electrostatic Discharge: Page 10 KSSSI116...
  • Page 11 Page 11 KSSSI116...
  • Page 12 Page 12 KSSSI116...
  • Page 13: Specifications

    Specifications: Model & PNC (Indoor) KSV26CRC/950132916 KSV26HRC/950132910 Rated Voltage V~ 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min~Max) 2600 2600 Heating Capacity (Min~Max) 3000 Cooling Power Input (Min~Max) Heating Power Input (Min~Max) Cooling Power Current 2.85...
  • Page 14 Model & PNC (Outdoor Unit) KSV26CRC/950132916 KSV26HRC/950132910 PANASONIC WANBAO PANASONIC WANBAO Compressor COMPERSSOR COMPERSSOR Manufacturer/Trademark (GUANGZHOU) (GUANGZHOU) CO.LTD/PANASONIC CO.LTD/PANASONIC Compressor Model 5RS102ZJA21 5RS102ZJA21 Compressor Oil FV50S FV50S Compressor Type Rotary Rotary L.R.A. Compressor RLA 4.47 4.47 Compressor Power Input Overload Protector...
  • Page 15 Model & PNC (Indoor) KSV35CRC/950132917 KSV35HRC/950132911 Rated Voltage V~ 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min~Max) 3500 3500 Heating Capacity (Min~Max) 4000 Cooling Power Input (Min~Max) Heating Power Input (Min~Max) 1040 Cooling Power Current 4.00 4.00 Heating Power Current...
  • Page 16 KSV35CRC/950132917 KSV35HRC/950132911 Model & PNC (Outdoor Unit) PANASONIC WANBAO PANASONIC WANBAO Compressor COMPERSSOR COMPERSSOR Manufacturer/Trademark (GUANGZHOU) (GUANGZHOU) CO.LTD/PANASONIC CO.LTD/PANASONIC Compressor Model 5RS102ZJA21 5RS102ZJA21 Compressor Oil FV50S FV50S Compressor Type Rotary Rotary L.R.A. Compressor RLA 4.47 4.47 Compressor Power Input Overload Protector 1NT11L-5270 1NT11L-5270 Throttling Method...
  • Page 17 Model KSV53HRC Product Code CB407000500 Rated Voltage V~ 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 5200 Heating Capacity 5800 Cooling Power Input 1450 Heating Power Input 1640 Cooling Current Input Heating Current Input Rated Input 2500 Rated Current 12.5...
  • Page 18 Model & PNC (Outdoor Unit) KSV53HRC/950132912 MITSUBISHI/MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark (GUANGZHOU)COMP Compressor Model SNB130FGYMC-L1 Compressor Oil FV50S Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1245 Compressor Overload Protector 1NT11L-6578 Throttling Method Capillary Set Temperature Range ºC 16~30 Cooling Operation Ambient Temperature 10~48 ºC...
  • Page 19 Model & PNC (Indoor Unit) KSV62HRC/950132913 Rated Voltage V~ 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min~Max) 6050(1300~7200) Heating Capacity (Min~Max) 6700(1200~7300) Cooling Power Input (Min~Max) 1730(400~2400) Heating Power Input (Min~Max) 1910(400~2500) Cooling Power Current 7.67 Heating Power Current 8.49...
  • Page 20 Model & PNC (Outdoor Unit) KSV62HRC/950132913 MITSUBISHI/MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark (GUANGZHOU)COMP Compressor Model SNB130FGYMC-L1 Compressor Oil FV50S Compressor Type Rotary L.R.A. 27.00 Compressor RLA 8.40 Compressor Power Input 1245 Overload Protector 1NT11L-6578 Throttling Method Capillary ℃ Operation temp 16 / 30 ℃...
  • Page 21 Model & PNC (Indoor Unit) KSV70HRC/950132914 Rated Voltage V~ 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min~Max) 7000(1300~8600) Heating Capacity (Min~Max) 7600(1200~10000) Cooling Power Input (Min~Max) 2000(500~3000) Heating Power Input (Min~Max) 2170(550~3500) Cooling Power Current 8.87 Heating Power Current 9.63...
  • Page 22 Model & PNC (Outdoor Unit) KSV70HRC/950132914 MITSUBISHI/MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark (GUANGZHOU)COMP Compressor Model TNB220FLHMC Compressor Oil FV50S Compressor Type Rotary L.R.A. 45.00 Compressor RLA 10.63 Compressor Power Input 2200 Overload Protector CS-7C-1595 Throttling Method Capillary ℃ Operation temp 16 / 30 ℃...
  • Page 23 Model & PNC (Indoor Unit) KSV70CRC/950132918 Rated Voltage V~ 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min~Max) 7000(1300~8600) Heating Capacity (Min~Max) Cooling Power Input (Min~Max) 2000(500~3000) Heating Power Input (Min~Max) Cooling Power Current 8.87 Heating Power Current Rated Input 3500 Rated Current...
  • Page 24 Model & PNC (Outdoor Unit) KSV70CRC/950132918 MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark (GUANGZHOU)COMP/MITSUBISHI Compressor Model TNB220FLHMC Compressor Oil FV50S Compressor Type Rotary L.R.A. 45.00 Compressor RLA 10.63 Compressor Power Input 2200 Overload Protector CS-7C-1595 Throttling Method Electron expansion valve ℃ Operation temp 16~...
  • Page 25 Model & PNC (Indoor Unit) KSV80HRC/950132915 Rated Voltage V~ 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min~Max) 7800(1300~9700) Heating Capacity (Min~Max) 8200(1200~11000) 2279(450~ 3350) Cooling Power Input (Min~Max) Heating Power Input (Min~Max) 2477(450~4200) Cooling Power Current 11.10 Heating Power Current 12.00...
  • Page 26 Model & PNC (Outdoor Unit) KSV80HRC/950132915 Compressor Manufacturer/Trademark ZHUHAI LANDA/Gree Compressor Model QXAS-D23zX090 Compressor Oil FV50S Compressor Type Rotary L.R.A. 40.00 Compressor RLA 12.00 Compressor Power Input 2450 Overload Protector 1NT11L-6233 Throttling Method Capillary ℃ Operation temp 16 / 30 ℃...
  • Page 27 Component Overview (1)Power cord (2)Remote controller (3)Front panel (4)Filter (5)Horizontal louver (6)Wall pipe (7)Binding tape (8)Connection pipe (9)Drain hose Page 27 KSSSI116...
  • Page 28 Display Panel (indoor unit) (10)Heating indicator: This indicator illuminates when the air conditioner is in HEAT mode. (11)Cooling indicator: This indicator illuminates when the air conditioner is in COOL mode (12)LED indicator (13)Power indicator: This indicator illuminates when the air conditioner is connected to the power supply. (14)Drying indicator: This indicator illuminates when the air conditioner is in DRY mode...
  • Page 29 Dimensions: KSV26 & 35CRC/HRC (Indoor) Unit: mm Models W(R) KSV26CRC 34.5 KSV26HRC KSV35CRC 34.5 KSV35HRC Page 29 KSSSI116...
  • Page 30 KSV26CRC & KSV26HRC (Outdoor) Unit: mm KSV35CRC & KSV35HRC (Outdoor) Unit: mm Page 30 KSSSI116...
  • Page 31 Dimensions: KSV53HRC (Indoor) Unit: mm Page 31 KSSSI116...
  • Page 32 KSV53HRC (Outdoor Unit) Unit: mm Page 32 KSSSI116...
  • Page 33 Dimensions: KSV62, 70 & 80CRC/HRC (Indoor Unit) Model KSV62HRC KSV70CRC 1193 186.5 260.5 KSV70HRC KSV80HRC Unit: mm Page 33 KSSSI116...
  • Page 34 Outdoor Unit KSV62HRC: Unit: mm KSV70CRC, KSV70HRC & KSV80HRC: Unit: mm Page 34 KSSSI116...
  • Page 35 Installation Brief Operating Temperatures: Cooling only models MODE Cool Dehumidifier Temperature Temperature Indoor Outdoor Indoor Outdoor 16°C~30°C 16°C~48°C 16°C~30°C 16°C~48°C Cooling & Heating models MODE Cool Heat Dehumidifier Temperature Temperature Temperature Indoor Outdoor Indoor Outdoor Indoor Outdoor 16°C~30°C 16°C~48°C 16°C~30°C -15°C~24°C 16°C~30°C 16°C~48°C...
  • Page 36: Installation Site Instructions

    Installation Site Instructions Proper installation site is vital for correct and efficient operation of the unit. Avoid the following sites where: ●strong heat sources, vapours, flammable gas or volatile liquids are emitted. ●high-frequency electro-magnetic waves are generated by radio equipment, ●welders and medical equipment.
  • Page 37 7. The height difference between indoor and outdoor units is within 10 m, and the length of the connecting tubing does not exceed: 15 m (for KSV26CRC&KSV26HRC) 20 m(for KSV35CRC & KSV35HRC) 25 m (for KSV53HRC, KSV62HRC, KSV70HRC & KSV70CRC) 30m (for KSV80HRC) 8.
  • Page 38 Piping Length, Elevation, Flare Work & Torque Settings: Flaring: Use the appropriate R410A flare tool to the dimensions illustrated in the attached table: OUTER A (mm) DIAMETER(mm) 6,35 9,52 12,70 Connection Adjustment: Align the pipes to be connected. Screw the flare nut with your Caution: Excessive torque may crack the nut, depending on the fingers, and the tighten it with...
  • Page 39: Electrical Work

    Electrical Work: INPUT RATED AMP CAPACITY POWER SUPPLY CABLE SIZE Switch/Fuse KSV26HRC KSV35HRC 1.0 mm (power cord) 220-240V~/50Hz 16A/16A KSV26CRC 1.0 mm (connecting cable) KSV35CRC INPUT RATED AMP CAPACITY POWER SUPPLY CABLE SIZE Switch/Fuse KSV53HRC KSV62HRC 2.5 mm (power cord)
  • Page 40: Cooling Mode

    Temperature Parameters: Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) Basic Functions: The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is Tf=TcX1.8+32. Three minutes delay for restart of compressor. Once the compressor is started up, the compressor will continue to run for 6 minutes despite any change of room temperature.
  • Page 41 Cooling Mode: Cooling Conditions and Process (KSV53, 62, 70 & 80CRC/HRC) When the (indoor ambient temperature - Tamb.) is >3ºC above the (indoor preset temperature - Tpreset), the unit starts cooling operation. In this case, the compressor and the outdoor fan operate and the indoor fan operates at set speed. When (indoor ambient temperature - Tamb.) -3ºC below the (indoor preset temperature - Tpreset), the compressor and the outdoor fan stop, while the indoor fan runs at set speed.
  • Page 42: Dry Mode

    Dry Mode: Drying Conditions and Process (KSV26 & 35CRC/HRC) When (indoor ambient temperature - Tamb.) is above (indoor preset temperature - Tpreset), the unit operates in cooling mode, with the compressor and outdoor fan in operation. Indoor fan operates at set fan speed (low fan speed, quiet fan speed).
  • Page 43 Dry Mode: Drying Conditions and Process (KSV53, 62, 70 & 80CRC/HRC) When (indoor ambient temperature - Tamb.) is above (indoor preset temperature - Tpreset), the unit operates in cooling mode, with the compressor and outdoor fan in operation. Indoor fan operates at set fan speed (low fan speed, quiet fan speed).
  • Page 44: Heating Mode

    Heating Mode: (Heat Pump Only Units) Heating Conditions and Process. (KSV26, 35, 53, 62, 70 & 80HRC) When (indoor ambient temperature - Tamb.) is 2ºC below the (indoor preset temperature - Tpreset), the unit operates in heating mode. Compressor and outdoor fan operate and indoor fan operates according to cold air prevention. When (indoor ambient temperature - Tamb.) is 5ºC above the (indoor preset temperature - Tpreset), compressor and outdoor fan stop operation, while indoor fan operates removing residual heat.
  • Page 45: Fan Only Mode

    Defrosting: When there’s too much frost on outdoor condenser, the complete unit will enter into a automatic defrost function. During defrosting process, H1 is displayed. Note: The unit will operate for a minimum of (45 minutes) between each defrost function. Residual Heat Removal: During heating mode when the ambient temperature reaches 5ºC above the set point, the (compressor and outdoor fan stops operation).
  • Page 46: Auto Mode

    Auto Mode: In auto mode, the system will automatically select the appropriate mode (Cooling, Heating or Fan Mode) according to the ambient temperature. The indoor display icon will indicate the selected operation mode and set temperature. Note: There will be a 30 second (protection) delay during switchover mode. A.
  • Page 47 SAVE Function: The SAVE mode will allow the unit to adjust the indoor fan speed automatically in accordance to the indoor ambient temperature. In cooling mode, with the use of the remote control, press IONFilter & clock buttons simultaneously. The unit will then enter into SAVE mode.
  • Page 48 Time-On Button: To set the Timer On/Start time, press the Timer On button located on the remote control. Note: The "ON" symbol will flash in the remote control display. To adjust the Start time, press the up & down arrows located on the remote control within 5 seconds of pressing the Timer On button.
  • Page 49: Sleep Button

    Sleep Button: Pressing this button, will select sleep mode ( ), sleep mode ( ), Sleep mode ( ) and cancel the Sleep mode. Circulate between these modes after the air conditioner is switched on. Sleep mode 1 In Cool and Dehumidify modes: the sleep mode operates after one hour, the set temperature will increase 1°C, after 2 hours the set temperature will increase another 1°C, then continue to run at this setting.
  • Page 50: Turbo Button

    Sleep Mode 3 In this mode the sleep temperature curve is manually set (DIY). (1) After selecting Sleep mode 3, press and hold the Turbo button until the remote control enters into user defined sleep setting status, the remote control will display "1 hour", temperature display will show the corresponding temperature of last setting sleep curve and blink (The first use will display the original factory setting).
  • Page 51 Control of Indoor Fan: The Indoor fan speed has 7 different settings: Quiet, speeds 1, 2, 3, 4, 5 & Turbo. The indoor fan can also be set at Auto fan speed. When the indoor fan operates in Auto fan speed, the indoor fan will operate at high speed, medium speed, low speed or turbo according to the change of ambient temperature.
  • Page 52 Fan mode, cooling mode: In auto cooling mode or normal cooling mode, auto fan speed operates according to below mode: When (indoor ambient temperature - Tamb.) is 3ºC or more above (indoor preset temperature – Tpreset.), indoor fan operates at high speed. When (indoor ambient temperature - Tamb.) is 2 to 3ºC above (indoor preset temperature –...
  • Page 53 Control of Up & Down Swing: Small Horizontal Louver After powering up the unit, the swing motor controlling the small horizontal louver will rotate anticlockwise to position 0. If the swing function has not been activated, the horizontal louver will turn clockwise to position D1 in HEAT mode. If the swing function has been activated, the horizontal louver will swing between 0 and D1.
  • Page 54: Memory Function

    Control of Left & Right Louver Swing After powering up the unit, the left & right swing will initially adjust to its previous pre-set setting, then return to the middle position (3). There are 5 swing settings for the vertical louvers, positions 1, 2, 3, 4 & 5. When activated, the swing function will operate between 1 &...
  • Page 55 Safe Electrical Working Practices Remove Power cord, Fuse or Switch off the circuit breaker. Always check appliance with multimeter to ensure the supply power is disconnected. Use only insulated tools & equipment. Wear insulated shoes. No water on the floor or working space. Reduce the amount of exposed skin, by covering your arms and legs.
  • Page 56 Positive Lock Terminals The indoor & outdoor PCB’s are fitted with “Positive Lock Terminals”. To remove Positive Lock Terminals: Push the lever forward & lightly pull down on the terminal. Note: When reconnecting the Positive Lock Terminal, connect it so that the lever faces towards the front of the unit.
  • Page 57 Capacitor Discharge Discharge the capacitors located on the outdoor main PCB assembly. Note: Even if the power supply has been disconnected, high voltage power can be stored in these capacitors. Discharge the capacitors with the use of a 25 or 40-Watt incandescent globe. As illustrated below. Electrolytic Capacitors Bulb (25-40W) Page 57 KSSSI116...
  • Page 58 KSV26 & 35CRC/HRC Indoor Standby Heating Cooling Description – (Indoor) Display Page Nº Code Jumper Cap Malfunction Flash-15 DRED (Compressor Off) DRED (Output Capacity-50%) DRED (Output Capacity-75%) Flash-2 Anti-Freeze Protection Flash-3 Refrigeration System Blocked/Gas Leak Flash-4 Compressor High Temp Protection Flash-5 AC-Over Current Protection Flash-6...
  • Page 59 KSV26 & 35CRC/HRC Green Yellow Description – (Outdoor) Page Nº Normal Communication Flash-1 Normal Operation Flash-8 Normal Operation Flash-0.5 Defrosting Flash-2 Frequency Limit Flash-1 Flash-3 Anti-High Temperature Protection Low Voltage Protection Flash-12 High Voltage Protection Flash-13 Flash-3 Anti-Freeze Protection Flash-4 Anti-Freeze Limit, Frequency Drop Flash-4 Anti-High Temperature Protection...
  • Page 60 LED Flash Code Sequence Description (Indoor Display PCB) # In the event of a complete shutdown or an operational control adjustment the Standby, Heating or Cooling LED’s on the indoor display PCB flash to indicate this sequence. Note: The LED’s flash at a 1 second rate for the required number of flashes, and then a 2 second pause before repeating the 1 second rate sequence.
  • Page 61 LED Flash Code Sequence Description (Outdoor PCB) # In the event of a complete shutdown or an operational control adjustment the outdoor PCB Green, Yellow & Red LED’s flash to indicate this sequence. Note: The LED’s flash at a 1 second rate for the required number of flashes, then a 2 second pause before repeating the 1 second rate sequence.
  • Page 62 Not Operating: # Check the wiring configuration from the outdoor unit to the indoor unit. Is it wired up correctly in accordance to the wiring diagrams provided on both indoor & outdoor units? (Refer page 28) # While the unit is in “standby” mode, check if the red stand by light is on? # Try operating the unit by the forced operations button: By pressing the button once, the unit should activate in Auto mode.
  • Page 63 Not Operating Continues # Check for supply voltage at the following connection points: From the isolation switch to the Active-In & Neutral connector points located on the indoor PCB. If supply power is available at the above connector points, yet the unit can still not be operated by the remote control or the forced operation button, replace the indoor PCB.
  • Page 64 Diagnostic Display Mode Description: Built into the software for models: KSV26HRC & KSV35HRC are two different diagnostic methods: (Fault Codes & Condition Codes) that can be used to help diagnose various faults. These two diagnostic types are described in the following pages.
  • Page 65: Low Voltage Protection

    Fault Code Description Continues: E5, Indoor Unit. Indoor Standby LED, flash 5 times. (AC Over-Current Protection) # While the unit is in operation, check the maximum current draw. If it’s above the maximum current rating illustrated on the outdoor rating plate, check operation of the compressor. E8, Indoor Unit.
  • Page 66 Condition Code Description: D1, Indoor unit - (Condition Code) DRED (Demand Response Electrical Device) # Compressor off. D2, Indoor unit - (Condition Code) DRED (Demand Response Electrical Device) # Output capacity limited to 50%. D3, Indoor unit - (Condition Code) DRED (Demand Response Electrical Device) # Output capacity limited to 75%.
  • Page 67 Condition Code Continues: PO, Indoor Unit - (Condition Code) {Remote Control Access - 5} (Compressor Minimum Frequency - Test State) # Set remote control: (Cooling mode: 16ºC – Heating mode: 27ºC) P1, Indoor Unit - (Condition Code) {Remote Control Access - 5} (Compressor Rated Frequency - Test State) # Set remote control: (Cooling mode: 18ºC –...
  • Page 68 EE, Indoor unit. Indoor Heating LED, flash 15 times Yellow LED, Outdoor unit flashing 11 times. (Loading EEPROM malfunction) # Check if the Program Chip is anchored correctly to the outdoor PCB. Note: If the Program Chip is correctly anchored, yet “EE” fault still exists, replace the outdoor PCB assembly.
  • Page 69 Communication Fault: E6, Indoor unit. Indoor Standby LED, flash 6 times. Green LED, Outdoor unit off. # Disconnect the main power supply to the indoor unit by means of the isolation switch. After approximately one minute, turn the power supply back on & attempt to operate the unit in “Auto” mode with a set temperature of two degrees above or below the ambient temperature.
  • Page 70 Communication Fault Continues: # Disconnect the supply power & check the continuity of the COM-U wire from the following points: COM-U terminal point on the indoor PCB. To the communication terminal points on the indoor terminal block. To the communication terminal points on the outdoor terminal block. To the COM-U terminal point on the outdoor PCB.
  • Page 71 Communication Fault Continues: # Check the continuity of the connecting wires from the outdoor PCB to the Reactor, as listed below. Orange terminal point on outdoor PCB to orange terminal point on Reactor. White terminal point on outdoor PCB to white terminal point on Reactor. Check the continuity of the reactor.
  • Page 72: Ipm Protection

    IPM Protection: H5, Indoor unit. (Delayed) Indoor Heating LED, flash 5 times (Delayed) Yellow LED, Outdoor unit flashing 4 times. # Disconnect the supply power to the unit by means of the isolation switch. # Remove the Blue-U, Yellow-V & Red-W spade terminals from the main outdoor PCB to the compressor, then measure the resistance value of each winding from these three spade terminal points.
  • Page 73 IPM Protection Continues: # Remove the Blue, Yellow & Red wires that connect to the U, V & W terminal points on the outdoor main PCB. # Check for continuity across any terminal combination of the U, V & W spade terminal points. Note: All continuity checks should read “open circuit”.
  • Page 74 IPM Protection Continues: # Check for >100V-DC between the following points: Negative DC & positive DC-U Negative DC & positive DC-V Negative DC & positive DC-W If >100V-DC is not available at each of the above test points, replace the main outdoor PCB. Negative &...
  • Page 75 F3 Indoor unit. Indoor Cooling LED, flash 3 times. Red LED, Outdoor unit flashing 5 times. (Outdoor Ambient Sensor) F4, Indoor unit. Indoor Cooling LED, flash 4 times. Red LED, Outdoor unit flashing 6 times. (Outdoor Coil Sensor) F5, Indoor unit. Indoor Cooling LED, flash 5 times.
  • Page 76 F1, Indoor unit. Indoor Cooling LED, flash 1 time. (Room Temp Sensor Failure) F2, Indoor unit. Indoor Cooling LED, flash 2 times. (Tube Temp Sensor Failure) # Check the Indoor Ambient & Indoor Tube sensors for correct connection. # Check the continuity of the relevant sensor, if the sensor is open circuit, change it. Note: If all the above checks relating to the sensors &...
  • Page 77 H6, Indoor unit. (Indoor Fan Stall) Indoor Standby LED, flashing 11 times. Yellow LED, Outdoor unit flashing 6 times. (High Temp Prevention) Red LED, Outdoor unit flashing 3 times. (High Temp Prevention) # Check if the filters are blocked on the indoor unit. # Check the refrigerant charge.
  • Page 78 L3, Indoor unit. Indoor Standby LED, flashing 23 times. Red LED, Outdoor unit flashing 14 times. (Outdoor DC Fan Motor Malfunction) # Check the condenser fan for correct operation. If the fan motor is not operating check the three pin DC-Motor connector plug for correct termination to the outdoor PCB. # With the unit set in heating or cooling mode (depending on ambient conditions) Check for DC voltage from the points illustrated below, located on the main outdoor PCB.
  • Page 79 H3, Indoor unit. Indoor Heating LED, flashing 3 times. Yellow LED, Outdoor unit flashing 8 times. (Compressor Overload Protection) # Check the following points: Refrigerant charge. Restrictions within the capillary tube. Poor air flow across the indoor & outdoor coils. Correct operation of the four-way reversing valve.
  • Page 80 LP, Indoor unit. Indoor Standby LED, flash 23 times (Indoor & Outdoor units don’t match) # Check if the Indoor & Outdoor units are correctly matched. Note: If the indoor & outdoor units are from two different model types, the LP fault code will be displayed.
  • Page 81 E3, Indoor unit. Indoor Standby LED, flashing 3 times. (Refrigeration System Blocked or Gas Leakage) # Check the Low Pressure Sensor connector plug located on the outdoor PCB & the two spade terminals located on the Low Pressure Sensor for correct termination & continuity. # Check the Low Pressure Sensor located next to the compressor.
  • Page 82 KSV53HRC, KSV62HRC, KSV70CRC, KSV70HRC & KSV80HRC Indoor Standby Heating Cooling Description – (Indoor) Display Page Nº Code Jumper Cap Malfunction Flash-15 DRED (Compressor Off) DRED (Output Capacity-50%) DRED (Output Capacity-75%) Anti-Freeze Protection Flash-2 Refrigeration System Blocked/Gas Leak Flash-3 Compressor High Temp Protection Flash-4 AC-Over Current Protection Flash-5...
  • Page 83: Table Of Contents

    KSV53HRC, KSV62HRC, KSV70CRC, KSV70HRC & KSV80HRC Yellow Orange Green Description – (Outdoor) Page Nº D5 LED D6 LED D16 LED D30 LED Compressor Discharge High Temp Protection Flashing AC Over-Current Protection Flashing Anti-High Temperature Protection Loading EEPROM Malfunction System Pressure to High Flashing Flashing PFC Protection...
  • Page 84 LED Flash Code Sequence Description (Indoor Display PCB) # In the event of a complete shutdown or an operational control adjustment the Standby, Heating or Cooling LED’s on the indoor display PCB flash to indicate this sequence. Note: The LED’s flash at a 1 second rate for the required number of flashes, and then a 2 second pause before repeating the 1 second rate sequence.
  • Page 85 LED Flash Code Sequence Description (Outdoor PCB) # In the event of a complete shutdown or an operational control adjustment the outdoor PCB Green-D16/D43, Yellow-D5, Orange-D6 & Red-D30/D40 LED’s remain Off, Flash or remain On to indicate this fault code sequence. # Example of LED sequence: Fault code sequence.
  • Page 86 Not Operating: # Check the wiring configuration from the outdoor unit to the indoor unit. Is it wired up correctly in accordance to the wiring diagrams provided on both indoor & outdoor units? (Refer page 30 & 31) # While the unit is in “standby” mode, check if the red stand by light is on? # Try operating the unit by the forced operations button: By pressing the button once, the unit should activate in Auto mode.
  • Page 87 Not Operating Continues # Check for supply voltage at the following connection points: From the isolation switch to the Active-In & Neutral connector points located on the indoor PCB. If supply power is available at the above connector points, yet the unit can still not be operated by the remote control or the forced operation button, replace the indoor PCB.
  • Page 88 Diagnostic Display Mode Description: Built into the software for models: KSV62, 70 & 80HRC are two different diagnostic methods: (Fault Codes & Condition Codes) that can be used to help diagnose various faults. These two diagnostic types are described in the following pages. Note: Where there is referral to (Delayed) # This indicates a time delay before the fault code in question is displayed.
  • Page 89 Fault Code Description Continues: E8, Indoor Unit. (Anti-High Temperature Protection) Indoor Standby LED, flash 8 times. {Delayed} Yellow-D5 LED, Outdoor unit On. Orange-D6 LED, Outdoor unit. Off. Green-D16 LED, Outdoor unit On. Red-D30 LED, Outdoor unit On. # Check the indoor & outdoor coils for airflow obstructions. # Check the indoor &...
  • Page 90 Fault Code Description Continues: HC, Indoor unit. (PFC Protection) Indoor Heating LED, flash 6 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. On. Green-D16 LED, Outdoor unit Flashing. Red-D30 LED, Outdoor unit Flashing. # Check supply voltage. PL, Indoor unit. (Low Voltage Protection) Indoor Heating LED flashing 21 times.
  • Page 91 Fault Code Description Continues: U1, Indoor unit. (Compressor Phase Detection Circuit Malfunction) Indoor Heating LED flashing 13 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit Flashing. Green-D16 LED, Outdoor unit On. Red-D30 LED, Outdoor unit Off. # Replace Outdoor PCB Assembly. U5, Indoor unit.
  • Page 92 Condition Code Description: D1, Indoor unit. DRED (Demand Response Electrical Device) # Compressor off. D2, Indoor unit. DRED (Demand Response Electrical Device) # Output capacity limited to 50%. D3, Indoor unit. DRED (Demand Response Electrical Device) # Output capacity limited to 75%. E2, Indoor Unit.
  • Page 93: Flashing

    Condition Code Continues: EU, Indoor Unit. (IPM Over Temperature Limit) Indoor Heating LED, flash 6 times. {Remote Control Access - 4} Indoor Cooling LED, flash 6 times. Yellow-D5 LED, Outdoor unit On. Orange-D6 LED, Outdoor unit On. Green-D16 LED, Outdoor unit On. Red-D30 LED, Outdoor unit Flashing.
  • Page 94: Off

    Condition Code Continues: P5, Indoor Unit. (Compressor Current Out of Normal Range) Indoor Heating LED, flash 15 times. {Remote Control Access - 4} Indoor Cooling LED, flash 15 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit Flashing. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit Off.
  • Page 95: Flashing

    E6, Indoor unit. (Communication Fault) Indoor Standby LED, flash 6 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. Off. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit Flashing. # Disconnect the main power supply to the indoor unit by means of the isolation switch. After approximately one minute, turn the power supply back on &...
  • Page 96 Communication Fault Continues: If the Communication fault has not cleared: # Check for supply voltage at the following points. Between the Active -Out & Neutral points on the indoor PCB. Between the Active & Neutral points on the indoor terminal block. Between the Active &...
  • Page 97 Communication Fault Continues: # Disconnect the supply power & check the continuity of the communication wire from the following points: Communication terminal point on the indoor PCB. To the communication terminal points on the indoor terminal block. To the communication terminal points on the outdoor terminal block. To the communication solder point on the outdoor PCB.
  • Page 98 PU, Indoor unit. (Capacitor Charge Malfunction) {Delayed} Indoor Heating LED, flash 17 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. On. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit On. # Check the continuity of the connecting wires from the outdoor PCB to the Reactor, as listed below.
  • Page 99: Flashing

    Lc, Indoor unit. (Start-up Failure) {Delayed} Indoor Heating LED, flash 11 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. Flashing. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit Flashing. # Disconnect the supply power to the unit by means of the isolation switch. # Remove the two top covers on the outdoor unit to access the main outdoor PCB.
  • Page 100 H5, Indoor Unit. (IPM Protection) Indoor Heating LED, flash 5 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit Flashing. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit On. # Disconnect the mains power supply & the compressor from the outdoor PCB. Then measure the resistance between the following points: Neutral to Comp-U = Open Circuit.
  • Page 101: Off

    F3 Indoor unit. (Outdoor Ambient Sensor) Indoor Cooling LED, flash 3 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. Off. Green-D16 LED, Outdoor unit Flashing. Red-D30 LED, Outdoor unit On. F4, Indoor unit. (Outdoor Coil Sensor) Indoor Cooling LED, flash 4 times. Yellow-D5 LED, Outdoor unit Off.
  • Page 102 F1, Indoor unit. (Room Temp Sensor Failure) Indoor Cooling LED, flash 1 time. F2, Indoor unit. (Tube Temp Sensor Failure) Indoor Cooling LED, flash 2 times. # Check the Indoor Ambient & Indoor Tube sensors for correct connection. # Check the continuity of the relevant sensor, if the sensor is open circuit, change it. Refer pages 117 to 119 for resistance values.
  • Page 103 H6, Indoor unit. (Indoor Fan Stall) Indoor Standby LED, flashing 11 times. # Remove the fan motor plug from the indoor PCB & operate the unit in “Fan only” mode. # Measure for DC voltage at the following voltage check points located on the indoor PCB : Between terminals 1 &...
  • Page 104 H6 fault continues: # Check the evaporator fan motor for correct operation. If the fan motor is not operating check the five pin DC-Motor connector plug on the indoor PCB for correct termination. # Remove the five pin DC-Motor connector plug & check the resistance value from the following points: Yellow &...
  • Page 105 L3, Indoor unit. (Outdoor DC Fan Motor Malfunction) Indoor Standby LED, flashing 23 times. Yellow-D5 LED, Outdoor unit On. Orange-D6 LED, Outdoor unit. Off. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit Off. # Check the condenser fan for correct operation. If the fan motor is not operating check the three pin DC-Motor connector plug for correct termination to the outdoor PCB.
  • Page 106 L3 fault continues: # Check the condenser fan for correct operation. If the fan motor is not operating check the five pin DC-Motor connector plug for correct termination to the outdoor PCB. # Remove the five pin DC-Motor connector plug & check the resistance value from the points illustrated below.
  • Page 107: Off

    H3, Indoor unit. (Compressor Overload Protection) Indoor Heating LED, flashing 3 times. Yellow-D5 LED, Outdoor unit Off. Orange-D6 LED, Outdoor unit. Flashing. Green-D16 LED, Outdoor unit Flashing. Red-D30 LED, Outdoor unit Off. # Check the following points: Refrigerant charge. Restrictions within the capillary tube. Poor air flow across the indoor &...
  • Page 108 LP, Indoor unit. (Indoor & Outdoor Units Don’t Match) Indoor Standby LED, flash 23 times # Check if the Indoor & Outdoor units are correctly matched. Note: If the indoor & outdoor units are from two different model types, the LP fault code will be displayed.
  • Page 109: Flashing

    E3, Indoor unit. (Refrigeration System Blocked or Gas Leakage) Indoor Standby LED, flashing 3 times. Yellow-D5 LED, Outdoor unit On. Orange-D6 LED, Outdoor unit Flashing. Green-D16 LED, Outdoor unit Off. Red-D30 LED, Outdoor unit Flashing. # Check the low pressure sensor Connector Plug located on the underside of the outdoor PCB & the two Spade Terminals located on the Low Pressure Sensor for correct termination &...
  • Page 110: Wiring Diagrams

    Wiring Diagrams: KSV26, 35 & 53CRC/HRC (Indoor) Page 110 KSSSI116...
  • Page 111 KSV62, 70 & 80CRC/HRC (Indoor) Page 111 KSSSI116...
  • Page 112 KSV26 & 35CRC (Outdoor) Page 112 KSSSI116...
  • Page 113 KSV26 & 35HRC (Outdoor) Page 113 KSSSI116...
  • Page 114 KSV53 & 62HRC (Outdoor) Page 114 KSSSI116...
  • Page 115 KSV70CRC (Outdoor) Page 115 KSSSI116...
  • Page 116 KSV70 & 80HRC (Outdoor) Page 116 KSSSI116...
  • Page 117 Ambient Temperature Sensor Resistance Table (Indoor & Outdoor Units) Temp Resistance Temp Resistance Temp Resistance Temp Resistance kΩ kΩ kΩ kΩ ºC ºC ºC ºC 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68 3.333...
  • Page 118 Tube Temperature Sensor Resistance Table (Indoor & Outdoor Units) Temp. Resistance Temp Resistance Temp. Resistance Temp. Resistance kΩ kΩ kΩ kΩ ºC ºC ºC ºC 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443...
  • Page 119 Discharge Temperature Sensor Resistance Table (Outdoor Unit) Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance kΩ kΩ kΩ kΩ ºC ºC ºC ºC 853.5 18.34 4.754 799.8 93.42 17.65 4.609 89.07 16.99 4.469 703.8 84.95 16.36 4.334 660.8 81.05 15.75 4.204 620.8 77.35...
  • Page 120 Disassembly – Indoor: KSV26, 35, 53, 62, 70 & 80CRC/HRC Procedure Remove Air Filter Cover Panel Panel Lift the filter cover up to expose the underside of the panel. Remove the 4 screws supporting the display PCB. PCB display Unclip the display PCB harness & let it hang to one side. Then (by pressing the supporting bracket inwards) unclip &...
  • Page 121 Remove Main Guide Louver Bush, Pivot Remove the supporting pivot pin (located in the centre of Louver, Main the louver) by pressing from left to right. Note: The pivot pin should simply pop out. Then bend the centre of the louver towards you until one side is dislodged from its pivot support.
  • Page 122 Remove of Indoor Control Box Assembly Cover-1 ,Electric Box Unclip the PCB display Harness from the electric box cover-1. Sensor, Indoor Harness tube. Support Squeeze the clip supporting the base of the electric box cover-1, then lift up and remove. Screw, Earth Carefully lift the indoor Tube Sensor out of its copper tube Clip...
  • Page 123 KSV26 & 35CRC/HRC models only Remove Evaporator & Indoor Fan Motor Screw Clamp, Pipe Remove the screw supporting the connection pipe clamp. Connection Then remove the clamp. Remove the two screws supporting the evaporator side Evaporator cover. assembly Remove the single screw supporting the evaporator to the chassis.
  • Page 124 KSV62, 70 & 80CRC/HRC models only Remove Water Tray, Evaporator & Indoor Fan Motor Remove the water tray by placing a small amount of downward pressure on each corner of the tray until the top corner supporting clips pop out of position. Drain Trough Supporting Brackets Release the two centre supporting brackets from the main...
  • Page 125 Disassembly – Outdoor: KSV26 & 35CRC/HRC models only Remove Top Cover To remove the top cover, unscrew the left & right side screws. Then lift off. Top cover Screw Removal of Rear Grill Remove the four screws supporting the rear grill to the side panels.
  • Page 126 Removal of Condenser Fan Blade Condenser Fan Blade Remove the nut holding the condenser fan blade onto the fan motor shaft. Then slide the fan blade off the shaft. Removal of Condenser Fan Motor Remove the four nuts & washers located on each corner of the fan motor.
  • Page 127 Remove Four-Way Valve Assembly Remove the single screw that attaches the Four-Way electronic coil to the four-way valve. Then slide Valve Assy off the coil. Note: Before removing the four-way valve, ensure the replacement four-way valve assembly (including connecting piping) is on hand.
  • Page 128 Disassembly – Outdoor (KSV53, 62, 70 & 80CRC/HRC) models only Remove Top Panel & Handle Remove all screws around the sides of the top panel. Then remove the top panel. Top Panel Screw Remove the single screw supporting the handle. Then push down &...
  • Page 129 Remove the two screws supporting the front side panel. Then push down & remove. Front Side Panel Page 129 KSSSI116...
  • Page 130 Remove the four screws supporting the front grill into position. Then remove grille. Front Grill Screw Front Panel Remove all screws surrounding the front panel. Then lift off. Right Side Panel Screw Screws Remove all screws surrounding the side panel. Then lift off.
  • Page 131 Remove Fan Motor Remove the four nuts & washers located on each corner of the fan motor. Then slide the fan motor off the four Motor supporting bolts. Note: To completely remove the fan motor away from the unit, you will also need to unclip the connecting harness attached to the outdoor PCB.
  • Page 132 Installation of DRED Network Cable Insert the network cable located at the rear corner (behind the terminal block) of the indoor unit, according to the attached photo: Anchor the DRED network cable according to the attached photo, by the use of a zip tie: Page 132 KSSSI116...
  • Page 133 Page 133 KSSSI116...

This manual is also suitable for:

Ksv35hrcKsv70hrcKsv53hrcKsv80hrcKsv62hrc

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