Panasonic CS-RE9QKE Service Manual
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Panasonic CS-RE9QKE Service Manual

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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
CS-RE9QKE
CS-RE12QKE
CS-RE15QKE
Order No: PAPAMY1312068CE
Outdoor Unit
CU-RE9QKE
CU-RE12QKE
CU-RE15QKE
Destination
Europe
© Panasonic Corporation 2013.

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Summary of Contents for Panasonic CS-RE9QKE

  • Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2013.

  • Page 2: Table Of Contents

    6. Refrigeration Cycle Diagram ......16 17.1 Cool Mode Performance Data....87 7. Block Diagram ..........17 17.2 Heat Mode Performance Data....88 CS-RE9QKE CU-RE9QKE......17 18. Service Data ............. 89 CS-RE12QKE CU-RE12QKE 18.1 Cool Mode Outdoor Air Temperature CS-RE15QKE CU-RE15QKE.....18 Characteristic..........89 8.

  • Page 3: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. ...
  • Page 4 WARNING During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of compressor while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.) After completion of installation or service, confirm there is no leakage or refrigerant gas.

  • Page 5: Specifications

    2. Specifications Indoor CS-RE9QKE CS-RE12QKE Model Outdoor CU-RE9QKE CU-RE12QKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.00 0.85 3.50 3.90 Capacity BTU/h 2900 8530 10200 2900...
  • Page 6 Indoor CS-RE9QKE CS-RE12QKE Model Outdoor CU-RE9QKE CU-RE12QKE Type Hermetic Motor Hermetic Motor Compressor Motor Type Brushless (6-poles) Brushless (6-poles) Output Power Type Cross-Flow Fan Cross-Flow Fan Material ASG20K1 ASG20K1 Motor Type DC / Transistor (8 poles) DC / Transistor (8 poles) Input Power 47.3...
  • Page 7 Indoor CS-RE9QKE CS-RE12QKE Model Outdoor CU-RE9QKE CU-RE12QKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8) Standard length m (ft) 5.0 (16.4) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 15 (49.2)
  • Page 8 Indoor CS-RE15QKE Model Outdoor CU-RE15QKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.85 4.20 4.60 Capacity BTU/h 2900 14300 15700 kcal/h 3610 3960 Running Current – 5.60 – Input Power 1.26k 1.65k Annual Consumption –...
  • Page 9 Indoor CS-RE15QKE Model Outdoor CU-RE15QKE Type Hermetic Motor Compressor Motor Type Brushless (6-poles) Output Power Type Cross-Flow Fan Material ASG20K1 Motor Type DC / Transistor (8 poles) Input Power 47.3 Output Power Cool Heat Cool Heat 1050 Speed Cool 1050 Heat 1200 Cool...
  • Page 10 Indoor CS-RE15QKE Model Outdoor CU-RE15QKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) I/D & O/D Height different m (ft) 15.0 (49.2) Additional Gas Amount...

  • Page 11: Features

    3. Features  Inverter Technology Wider output power range Energy saving Quick Cooling Quick Heating More precise temperature control  Environment Protection Non-ozone depletion substances refrigerant (R410A)  Long Installation Piping CS/CU-RE9/12/15QKE, long piping up to 15 meters  Easy to use remote control ...

  • Page 12: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit Anti-Bacterial filter Air Filters Auto OFF/ON button • Use when remote control is misplaced Front panel or malfunction occurs. Aluminium Fin INDICATOR (Green) POWER (Orange) TIMER Horizontal Airflow direction louver Remote Control receiver •...

  • Page 13: Dimensions

    5. Dimensions Indoor Unit & Remote Control <Top View> <Side View> <Side View> <Front View> Air intake direction Left piping Air outlet Right piping hole direction hole <Bottom View> <Remote Control> <Rear View> (41 ~ 61) <Remote Control Holder> Liquid side Gas side Relative position between the indoor unit and the installation plate <Front View>...

  • Page 14: Outdoor Unit

    Outdoor Unit 5.2.1 CU-RE9QKE <Top View> 67.6 24.4 (104.7) 104.9 60.5 Space necessary for installation 100 mm 100 mm 1000 mm Anchor Bolt Pitch 330 × 540 <Side View> 11.5 <Side View> <Front View> 3-way valve at Gas side Unit : mm (Low Pressure) 2-way valve at Liquid side (High Pressure)
  • Page 15 5.2.2 CU-RE12QKE CU-RE15QKE <Top View> Space necessary for 68.7 installation (124 ) (62.6) 100mm 100mm 1000mm Anchor Bolt Pitch 330 × 540 <Side View> <Side View> <Front View> 3-way valve at Gas side Unit : mm (Low Pressure) 2-way valve at Liquid side (High Pressure)

  • Page 16: Refrigeration Cycle Diagram

    6. Refrigeration Cycle Diagram INDOOR OUTDOOR OUTDOOR LIQUID EXPANSION AIR TEMP. SIDE MUFFLER VALVE STRAINER SENSOR 2-WAY VALVE PIPE TEMP. SENSOR 1 INTAKE PIPE TEMP. TEMP. SENSOR SENSOR CONDENSER PIPE TEMP. SENSOR 2 HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY MUFFLER VALVE COMPRESSOR...

  • Page 17: Block Diagram

    7. Block Diagram CS-RE9QKE CU-RE9QKE...

  • Page 18: Cs-Re12Qke Cu-Re12Qke Cs-Re15Qke Cu-Re15Qke

    CS-RE12QKE CU-RE12QKE CS-RE15QKE CU-RE15QKE...

  • Page 19: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit GROUNDING TERMINAL ELECTRONIC CONTROLLER (MAIN) TERMINAL CN-RMT BOARD (WHT) RY-PWR RY-PWR2 FUSE301 T3.15A L250V AC304 (RED) AC303 TEMP. UP DOWN CN-STM1 (WHT) FUSE LOUVER MOTOR NOISE (WHT) 102°C (3A) G301 FILTER TEMP. (GRN) OUTDOOR CIRCUIT FUSE UNIT...

  • Page 20: Outdoor Unit

    Outdoor Unit 8.2.1 CU-RE9QKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) FUSE104 OUTDOOR AIR TEMP. (15A 250V) DATA SENSOR (RED) (THERMISTOR) CN-TH NOISE (WHT) FILTER COMMUNICATION AC-BLK CIRCUIT PIPING TEMP. SENSOR CIRCUIT (BLK) (THERMISTOR) FUSE101 CN-TANK FUSE102 (20A 250V) (WHT) T3.15A L250V...
  • Page 21 8.2.2 CU-RE12QKE CU-RE15QKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) FUSE104 OUTDOOR AIR TEMP. (15A 250V) DATA SENSOR (RED) (THERMISTOR) CN-TH NOISE (WHT) FILTER COMMUNICATION AC-BLK CIRCUIT PIPING TEMP. SENSOR CIRCUIT (BLK) (THERMISTOR) FUSE101 FUSE102 CN-TANK (20A 250V) T3.15A L250V (WHT) COMP.

  • Page 22: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit...

  • Page 23: Outdoor Unit

    Outdoor Unit 9.2.1 CU-RE9QKE TO INDOOR UNIT REACTOR TERMINAL (BLACK) (WHITE) (RED) BOARD RAT2 RAT1 (GRY) (GRY) C190 0.1µ IC12 ELECTRONIC EXPANSION CONTROLLER VALVE CN-STM FUSE104 (15A 250V) DATA IC19 15.8k 15.0k (RED) OUTDOOR TEMP. 1µ 1µ NOISE SENSOR (15kΩ 3950) FILTER AC-BLK CIRCUIT...
  • Page 24 9.2.2 CU-RE12QKE CU-RE15QKE TO INDOOR UNIT REACTOR TERMINAL (BLACK) (WHITE) (RED) BOARD RAT2 RAT1 (GRY) (GRY) C190 0.1µ IC12 ELECTRONIC EXPANSION CONTROLLER VALVE CN-STM FUSE104 (15A 250V) DATA IC19 15.8k 15.0k (RED) OUTDOOR TEMP. 1µ 1µ NOISE SENSOR (15kΩ 3950) FILTER AC-BLK CIRCUIT...

  • Page 25: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board AC304 AC303 G301 RY-PWR2 RY-PWR CN-FM CN-RMT CN-STM1 CN-DISP CN-TH JP1 (Random Auto Restart enable/disable)
  • Page 26 10.1.2 Indicator & Receiver Printed Circuit Board CN-DISP...

  • Page 27: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board 10.2.1.1 CU-RE9QKE POWER TRANSISTOR (IPM) CN-HOT CN-STM CN-TH CURRENT CN-TANK TRANSFORMER (CT) CN-MTR1 CN-MTR2 AC-BLK DATA AC-WHT...
  • Page 28 10.2.1.2 CU-RE12QKE CU-RE15QKE POWER TRANSISTOR (IPM) CN-HOT CURRENT TRANSFORMER (CT) CN-TANK CN-TH AC-BLK CN-MTR1 CN-STM CN-MTR2 AC-WHT DATA...

  • Page 29: Installation Instruction

    11. Installation Instruction 11.1 Select the Best Location 11.1.1 Indoor Unit 11.1.3 Indoor/Outdoor Unit Installation  Diagram Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.  There should not be any heat source or steam Piping direction Attention not to bend near the unit.

  • Page 30: Indoor Unit

    11.2 Indoor Unit 11.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. Wall Wall Wall More than More than 1 More screw than 128 mm DISTANCE TO PIPE HOLE CENTER 128 mm 241.5 mm Installation plate...

  • Page 31: Indoor Unit Installation

    11.2.3 Indoor Unit Installation ● Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. ● Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Shock absorber...

  • Page 32: Connect The Cable To The Indoor Unit

    Replace the drain hose Rear view for left piping installation Connection Drain hose cable Piping More than Connection cable 1150 mm Drain hose Drain hose Drain cap Sleeve for piping hole Adjust the piping slightly downwards. • • How to pull the piping and drain hose out, in case In case of left piping how to insert of the embedded piping the connection cable and drain...
  • Page 33 Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below. Terminals on the outdoor unit Colour of wires (connection cable) WARNING Terminals on the indoor unit (Power supply cord) This equipment must be properly earthed.
  • Page 34 Wire stripping Conductor not Conductor Conductor WIRE STRIPPING, fully inserted fully inserted over inserted Indoor/outdoor CONNECTING connection terminal board REQUIREMENT 5 mm No loose strand or more when inserted ACCEPT PROHIBITED PROHIBITED (gap between wires) RISK OF FIRE JOINING OF WIRES MAY CAUSE WARNING OVERHEATING...

  • Page 35: Outdoor Unit

    11.3 Outdoor Unit 11.3.1 Install the Outdoor Unit  After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

  • Page 36: Evacuation Of The Equipment

    11.3.3 Evacuation of the Equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. Liquid side Indoor unit Two-way valve Outdoor unit Close Gas side Three-way valve OPEN Close Vacuum CLOSE...

  • Page 37: Connect The Cable To The Outdoor Unit

    11.3.4 Connect the Cable to the Outdoor Unit Remove the control board cover from the unit by loosening the screw. Terminal Connection cable between indoor unit and Board outdoor unit shall be approved polychloroprene sheathed 4 1.5 mm (1.0 ~ ×...

  • Page 38: Operation Control

    12. Operation Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.

  • Page 39: Indoor Fan Motor Operation

    12.1.5 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature.

  • Page 40: Outdoor Fan Motor Operation

    [Heating]  According to indoor pipe temperature, automatic heating fan speed is determined as follows. B. Feedback control  Immediately after the fan motor started, feedback control is performed once every second.  During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart.

  • Page 41: Airflow Direction

    12.4 Airflow Direction  There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).  Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

  • Page 42: Off Timer Control

    12.6 OFF Timer Control OFF timer can be set using remote control, the unit with timer set will stop operate at set time. 12.7 Auto Restart Control  When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.

  • Page 43: Protection Control

    13. Protection Control 13.1 Protection Control For All Operations 13.1.1 Restart Control (Time Delay Safety Control)  The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. ...
  • Page 44 13.1.4 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  If compressor discharge temperature exceeds 103°C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.

  • Page 45: Protection Control For Cooling & Soft Dry Operation

    13.2 Protection Control For Cooling & Soft Dry Operation 13.2.1 Outdoor Air Temperature Control  The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...

  • Page 46: Protection Control For Heating Operation

    13.2.6 Odor Cut Control  To reduce the odor released from the unit. Start Condition  AUTO FAN Speed is selected during COOL or DRY operation.  During freeze prevention control and timer preliminary operation, this control is not applicable. Control content ...

  • Page 47: Servicing Mode

    14. Servicing Mode 14.1 Auto OFF/ON Button AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds.

  • Page 48: Remote Control Button

    REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”...

  • Page 49: Troubleshooting Guide

    15. Troubleshooting Guide 15.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.

  • Page 50: Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current

    15.2 Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current Cooling Mode Heating Mode Condition of the Electric current Electric current air conditioner Low Pressure High Pressure Low Pressure High Pressure during operation during operation Insufficient refrigerant ...

  • Page 51: Breakdown Self Diagnosis Function

    15.3 Breakdown Self Diagnosis Function 15.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When the latest abnormality code on the main Once abnormality has occurred during operation, unit and code transmitted from the remote the unit will stop its operation, and Timer LEDs controller are matched, power LED will light blink.

  • Page 52: Error Codes Table

    15.4 Error Codes Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation No memory of failure — Normal operation — — Indoor fan only  Indoor/outdoor wire terminal Indoor/outdoor operation can Indoor/outdoor After operation for abnormal communication not ...
  • Page 53 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation  Check indoor/outdoor Wrong wiring and connection wire and connection Abnormal wiring or — — connecting pipe, expansion pipe piping connection valve abnormality  Expansion valve and lead wire and connector ...

  • Page 54: Self-Diagnosis Method

    15.5 Self-diagnosis Method 15.5.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused  Faulty indoor unit PCB.
  • Page 55 15.5.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted. ...
  • Page 56 15.5.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 57 15.5.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.  Faulty sensor.
  • Page 58 15.5.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions  An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused  Lack of gas  Broken CT (current transformer) ...
  • Page 59 15.5.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or < 50rpm). Malfunction Caused ...
  • Page 60 15.5.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 61 15.5.8 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 62 15.5.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 63 15.5.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 64 15.5.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 65 15.5.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCBs used.  Indoor unit or outdoor unit PCB defective.
  • Page 66 15.5.13 H34 (Outdoor Heat Sink Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 67 15.5.14 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 68 15.5.15 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 69 15.5.16 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
  • Page 70 15.5.17 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error code will not display (no TIMER LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C). Malfunction Caused ...
  • Page 71 15.5.18 F11 (4-way valve Abnormality) Malfunction Decision Conditions  When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
  • Page 72 15.5.19 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor pipe temperature is below -1.0°C. Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
  • Page 73 15.5.20 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
  • Page 74 15.5.21 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting...
  • Page 75 15.5.22 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect.  Outdoor PCB malfunction. Troubleshooting...
  • Page 76 15.5.23 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
  • Page 77 15.5.24 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (100°C) is detected by the IPM temperature sensor. Multi Models Only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat sink temperature sensor.
  • Page 78 15.5.25 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data (103°C) is detected by the compressor tank temperature sensor. Malfunction Caused  Refrigerant shortage (refrigerant leakage).  2/3 way valve closed.  Detection error due to faulty compressor tank temperature sensor.
  • Page 79 15.5.26 F98 (Input Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running. Malfunction Caused ...

  • Page 80: Troubleshooting

    15.5.27 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...

  • Page 81: Disassembly And Assembly Instructions

    16. Disassembly and Assembly Instructions WARNING High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 16.1.1 To remove front grille...
  • Page 82 16.1.3 To remove power electronic controller AC304 AC303 G301 RY-PWR2 RY-PWR CN-FM CN-RMT CN-STM1 CN-DISP CN-TH Figure 3 Figure 4 16.1.4 To remove discharge grille 10. Pull out to remove the drain hose from the discharge grille 11. Then pull the discharge grille downward gently to dismantle it Figure 5...

  • Page 83: To Remove Cross Flow Fan And Indoor Fan Motor

    16.1.5 To remove control board 12. Remove 4 screws holding the control board then pull out the control board. Figure 6 16.1.6 To remove cross flow fan and indoor fan motor 13. Remove the screw that holding the cross flow fan and fan motor axis.
  • Page 84 16. Push the holdfast to the left and lift up the evapo rator. Evaporator 17. Remove the cross flow fan from the unit by 18. Fan motor can be removed after the pulling it to the left and downward. removal of cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 45°...

  • Page 85: Outdoor Electronic Controller Removal Procedure

    16.2 Outdoor Electronic Controller Removal Procedure 16.2.1 CU-RE9QKE Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the Top Panel. 5. Remove the Control Board as follows: Fig. 1 Fig. 4 2. Remove the 6 screws of the Front Panel. Fig.
  • Page 86 16.2.2 CU-RE12QKE CU-RE15QKE Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 5 screws of the Top Panel. Fig. 4 Fig. 1 2. Remove the 8 screws of the Front Panel. Fig. 2 Fig. 5 3. Remove the screw of the Terminal Board Cover. 4.

  • Page 87: Technical Data

    Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C Voltage: 230V 17.1.1 CS-RE9QKE/CU-RE9QKE Indoor (°C) Outdoor DB (°C) 19.0 2662 2491 367 2591 2425 410 2638 2503 370 2608 2474 398 2800 2488 296 2629 2436 398 2500 2457 525 22.0 2813 1771 390 2968 1820 313 2819 1789 380 2947 1841 323 2891 1778 295 2869 1711 381 2529 1620 516...

  • Page 88: Heat Mode Performance Data

    17.2 Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 30°C Voltage: 230V 17.2.1 CS-RE9QKE/CU-RE9QKE Indoor (°C) Outdoor WB (°C) 2052 2525 1084 2887 1020 3313 3598 2162 2700 1080 2970 1000 3300 3803 1745...

  • Page 89: Service Data

    18. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 18.1 Cool Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 27°C DryBulb/19°C Wet Bulb Unit setting: Standard piping length, forced cooling at 16°C, Hi fan Compressor frequency: Rated for cooling operation Piping length: 5m Voltage: 230V...
  • Page 90 18.1.2 CS/CU-RE12QKE 18.00 17.00 16.00 15.00 14.00 13.00 12.00 Outdoor Air Temperature (°C) 5.20 4.80 4.40 4.00 3.60 3.20 2.80 2.40 2.00 Outdoor Air Temperature (°C) 1.30 1.20 1.10 1.00 0.90 0.80 0.70 0.60 Outdoor Air Temperature (°C)
  • Page 91 18.1.3 CS/CU-RE15QKE 16.50 16.00 15.50 15.00 14.50 14.00 13.50 13.00 12.50 12.00 Outdoor Air Temperature (°C) 7.50 6.50 5.50 4.50 3.50 2.50 1.50 Outdoor Air Temperature (°C) 1.10 1.00 0.90 0.80 0.70 0.60 Outdoor Air Temperature (°C)

  • Page 92: Heat Mode Outdoor Air Temperature Characteristic

    18.2 Heat Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 20°C DryBulb/ -°C Wet Bulb Unit setting: Standard piping length, forced heating at 30°C, Hi fan Compressor frequency: Rated for Heating operation Piping length: 5m Voltage: 230V 18.2.1 CS/CU-RE9QKE Outdoor Air Temperature (°C) 4.50 4.00...
  • Page 93 18.2.2 CS/CU-RE12QKE Outdoor Air Temperature (°C) 5.10 4.90 4.70 4.50 4.30 4.10 3.90 3.70 3.50 3.30 3.10 2.90 2.70 - 20 Outdoor Air Temperature (°C) 3.00 2.80 2.60 2.40 2.20 2.00 1.80 1.60 1.40 1.20 Outdoor Air Temperature (°C)
  • Page 94 18.2.3 CS/CU-RE15QKE Outdoor Air Temperature (°C) 7.00 6.50 6.00 5.50 5.00 4.50 4.00 Outdoor Air Temperature (°C) 3.60 3.40 3.20 3.00 2.80 2.60 2.40 2.20 2.00 1.80 Outdoor Air Temperature (°C)

  • Page 95: Piping Length Correction Factor

    18.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 18.3.1 CS/CU-RE9QKE CS/CU-RE12QKE CS/CU-RE15QKE 1.02 1.00 0.98 0.96 0.94 0.92 Pipe Length (m) 1.04 1.02 1.00 0.98 0.96 0.94 0.92 0.90 Pipe Length (m) Note: The graphs show the factor after added right amount of additional refrigerant.

  • Page 96: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List 19.1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 97 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-RE9QKE CS-RE12QKE CS-RE15QKE REMARK CHASSIS COMPLETE CWD50C1653 ← ← FAN MOTOR L6CBYYYL0037 ← ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← ← BEARING ASSY CWH64K007 ← ← SCREW - CROSS-FLOW FAN CWH551146 ← ←...
  • Page 98 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-RE9QKE CS-RE12QKE CS-RE15QKE REMARK INSTALLATION INSTRUCTION CWF616278 ← ← INSTALLATION INSTRUCTION CWF616279 ← ← INSTALLATION INSTRUCTION CWF616280 ← ← OPERATING INSTRUCTION CWF569460 ← ← (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).

  • Page 99: Outdoor Unit

    19.2 Outdoor Unit 19.2.1 CU-RE9QKE Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 100 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RE9QKE REMARK CHASSIS ASSY CWD50K2073 SOUND PROOF MATERIAL CWG302314 FAN MOTOR BRACKET CWD541089 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR ARS6411AC SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASSY CWH03K1010 NUT - PROPELLER FAN CWH56053J COMPRESSOR...
  • Page 101 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RE9QKE REMARK SHOCK ABSORBER (LEFT) CWG712970 C.C.CASE CWG568357 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock.
  • Page 102 19.2.2 CU-RE12QKE CU-RE15QKE Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 103 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RE12QKE CU-RE15QKE REMARK CHASSIS ASSY CWD52K1277 ← SOUND PROOF MATERIAL CWG302719 ← FAN MOTOR BRACKET CWD541167 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR ARS6411AC ← SCREW - FAN MOTOR MOUNT CWH55252J ←...
  • Page 104 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RE12QKE CU-RE15QKE REMARK SHOCK ABSORBER (LEFT) CWG713416 ← C.C.CASE CWG566848 ← (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock. [PAPAMY] Printed in Malaysia SB1213-0...

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