Panasonic CS-S9KKQ Service Manual
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Panasonic CS-S9KKQ Service Manual

Indoor/outdoor unit
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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-S9KKQ
CS-S12KKQ
CS-S18KKQ
CS-S24KKQ
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No: PHAAM1001037C3
Outdoor Unit
CU-S9KKQ
CU-S12KKQ
CU-S18KKQ
CU-S24KKQ

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Summary of Contents for Panasonic CS-S9KKQ

  • 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 HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    12.12 Freeze Prevention Control ......60 Refrigeration Cycle Diagram ......14 12.13 Freeze Prevention Control 2 ..... 60 12.14 Dew Prevention Control ......60 CS-S9KKQ CS-S12KKQ ......14 12.15 Odor Cut Control ........61 CS-S18KKQ CS-S24KKQ ......15 13 Servicing Mode ..........62 Block Diagram ..........16...

  • 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 19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 20.

  • Page 5: Specification

    2 Specification Indoor CS-S9KKQ CS-S12KKQ Model Outdoor CU-S9KKQ CU-S12KKQ Performance Test Condition Phase, Hz Single, 60 Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. 0.80 2.65 3.20 0.80 2.65 3.20 0.85 3.23 4.00...
  • Page 6 Control Device Capillary Tube Capillary Tube Refrigeration Refrigerant Oil RB68A or Freol Alpha68M (320) RB68A or Freol Alpha68M (320) Cycle Refrigerant Type g (oz) R410A, 760 (26.8) R410A, 850 (30.0) Height(I/D / O/D) mm (inch) 290 (11-7/16) 510 (20-3/32) 290 (11-7/16) 540 (21-9/32) Dimension Width (I/D / O/D)
  • Page 7 Indoor CS-S18KKQ CS-S24KKQ Model Outdoor CU-S18KKQ CU-S24KKQ Performance Test Condition Phase, Hz Single, 60Hz Single, 60Hz Power Supply Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. 0.90 5.20 6.00 0.90 5.20 6.00 0.90 6.00 7.10 0.90 6.00 7.10 Capacity...
  • Page 8 Height(I/D / O/D) mm (inch) 290 (11-7/16) 750 (29-17/32) 290 (11-7/16) 750 (29-17/32) Dimension Width (I/D / O/D) mm (inch) 1070 (42-5/32) 875 (34-15/32) 1070 (42-5/32) 875 (34-15/32) Depth (I/D / O/D) mm (inch) 235 (9-9/32) 345 (13-19/32) 235 (9-9/32) 345 (13-19/32) Weight Net (I/D / O/D)

  • Page 9: Location Of Controls And Components

    3 Location of Controls and Components 3.1 Indoor Unit 3.2 Outdoor Unit 3.3 Remote Control...

  • Page 10: Dimensions

    4 Dimensions 4.1 Indoor Unit 4.1.1 CS-S9KKQ CS-S12KKQ...
  • Page 11 4.1.2 CS-S18KKQ CS-S24KKQ...

  • Page 12: Outdoor Unit

    4.2 Outdoor Unit 4.2.1 CU-S9KKQ <Top View> (650) Space necessary for installation 10 cm 10 cm 100 cm 2-way valve at Liquid side Anchor Bolt Pitch (High Pressure) 261 x 474 3-way valve at Gas side (Low Pressure) <Side View> <Side View>...
  • Page 13 4.2.3 CU-S18KKQ CU-S24KKQ...

  • Page 14: Refrigeration Cycle Diagram

    5 Refrigeration Cycle Diagram 5.1 CS-S9KKQ CS-S12KKQ...

  • Page 15: Cs-S18Kkq Cs-S24Kkq

    5.2 CS-S18KKQ CS-S24KKQ...

  • Page 16: Block Diagram

    6 Block Diagram 6.1 CS-S9KKQ CU-S9KKQ...

  • Page 17: Cs-S12Kkq Cu-S12Kkq

    6.2 CS-S12KKQ CU-S12KKQ...

  • Page 18: Cs-S18Kkq Cu-S18Kkq Cs-S24Kkq Cu-S24Kkq

    6.3 CS-S18KKQ CU-S18KKQ CS-S24KKQ CU-S24KKQ...

  • Page 19: Wiring Connection Diagram

    7 Wiring Connection Diagram 7.1 Indoor Unit 7.1.1 CS-S9KKQ CS-S12KKQ...
  • Page 20 7.1.2 CS-S18KKQ CS-S24KKQ...

  • Page 21: Outdoor Unit

    7.2 Outdoor Unit 7.2.1 CU-S9KKQ...
  • Page 22 7.2.2 CU-S12KKQ...
  • Page 23 7.2.3 CU-S18KKQ CU-S24KKQ...

  • Page 24: Electronic Circuit Diagram

    8 Electronic Circuit Diagram 8.1 Indoor Unit 8.1.1 CS-S9KKQ CS-S12KKQ...
  • Page 25 8.1.2 CS-S18KKQ CS-S24KKQ...

  • Page 26: Outdoor Unit

    8.2 Outdoor Unit 8.2.1 CU-S9KKQ...
  • Page 27 8.2.2 CU-S12KKQ...
  • Page 28 8.2.3 CU-S18KKQ CU-S24KKQ...

  • Page 29: Printed Circuit Board

    9 Printed Circuit Board 9.1 Indoor Unit 9.1.1 Main Printed Circuit Board...
  • Page 30 9.1.2 Power Printed Circuit Board 9.1.2.1 CS-S9KK CS-S12KK 9.1.2.2 CS-S18KK CS-S24KK...
  • Page 31 9.1.3 Indicator Printed Circuit Board 9.1.4 Receiver Printed Circuit Board 9.1.5 High Voltage Power Supply Printed Circuit Board HV (-) HV (+) 9.1.6 Comparator Printed Circuit Board...
  • Page 32 9.1.7 Eco Patrol Printed Circuit Board...

  • Page 33: Outdoor Unit

    9.2 Outdoor Unit 9.2.1 Main Printed Circuit Board 9.2.1.1 CU-S9KK...
  • Page 35 9.2.1.2 CU-S12KK...
  • Page 36 9.2.1.3 CU-S18KKQ CU-S24KKQ...

  • Page 37: Installation Instruction

    10 Installation Instruction 10.1 Select The Best Location 10.1.1 Indoor Unit • 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 near the unit. •...

  • Page 38: Indoor Unit

    10.2 Indoor Unit 10.2.1 How to Fix Installation Plate The mounting wall is strong and solid enough to prevent if from the vibration. Dimension Model S9***, S12*** 485 mm 82 mm 165 mm 158 mm 93 mm 145 mm S18***, S24*** 585 mm 82 mm 165 mm...
  • Page 39 10.2.3 Indoor Unit Installation 10.2.3.1 For the right rear piping 10.2.3.2 For the right and right bottom piping 10.2.3.3 For the embedded piping (This can be used for left rear piping and bottom piping also.

  • Page 40: Connect The Cable To The Indoor Unit

    10.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm (1.0 ~ 7.5HP) or 4 x 2.5 mm (2.0 ~ 2.5HP) flexible cord, type...
  • Page 41 10.2.4.1 Wiring stripping and connecting requirement Wire stripping Indoor/outdoor Conductor not Conductor Conductor connecting fully inserted fully inserted over inserted terminal board 5 mm or more PROHIBITED ACCEPT PROHIBITED (gap between No loose strand when insert wires) 10.2.4.2 Cutting and flaring the piping Please cut using pipe cutter and then remove the burrs.

  • Page 42: Outdoor Unit

    10.3 Outdoor Unit 10.3.1 Install the Outdoor Unit • After selecting the best location, start installation 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 43: Connect The Cable To The Outdoor Unit

    Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes.

  • Page 44: Operation Control

    11 Operation Control 11.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.

  • Page 45: Indoor Fan Motor Operation

    11.2 Indoor Fan Motor Operation 11.2.1 Basic Rotation Speed • Manual Fan Speed Fan motor’s number of rotation is determined according to remote control setting. Remote control • Auto Fan Speed According to room temperature and setting temperature, indoor fan speed is determined automatically. The indoor fan will operate according to pattern below.

  • Page 46: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    • Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as figure below. When the air conditioner is stopped using remote control, the vane will shift to close position.

  • Page 47: Powerful Mode Operation

    11.6 Powerful Mode Operation • When the powerful mode is selected, the internal setting temperature will shift lower up to 2°C (for Cooling/Soft Dry) than remote control setting temperature for 240 minutes and the fan speed will increase to achieve the setting temperature quickly.

  • Page 48: Indication Panel

    11.9 Indication Panel POWER TIMER QUIET POWERFUL e-ion PATROL PATROL Color Green Orange Orange Orange Blue Green Blue Orange Eco Patrol Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON e-ion ON Air Clean Moderate Dirty Eco Patrol Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF e-ion OFF PATROL OFF...
  • Page 49 • Patrol Sensor Control First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to Clean, Patrol LED turns blue color. After that, Patrol sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air.
  • Page 50 • Indicator When patrol is selected, patrol sensor indicator ON. Description BLUE ORANGE E-ION When patrol function is not selected During gas sensor error detection control Blinking During stop 2 minutes gas sensor initial stabilization time (Level 0) During operation a.

  • Page 51: E-Ion Operation

    The Patrol indicator change color every 10 seconds follows the pattern below for demo purpose: " (10 seconds) (10 seconds) (10 seconds) Blue Orange (10 seconds) (10 seconds) During demo, all operation stops, remote control buttons and auto OFF/ON button are ignored. Patrol Operation Demo Mode stop condition ƒ...
  • Page 52 • e-ion Check Mode e-ion abnormality check mode Purpose is to improve sensor serviceability when sensor is malfunction. (1) Control starting condition When all of the conditions are formed • Not in Patrol Demo mode. • e-ion operation ON. • When e-ion check mode signal is received;...

  • Page 53: Mild Dry Cooling Operation

    ƒ Troubleshooting Method • Press “PATROL/e-ion” button or “OFF/ON” button to stop the operation and check the Active e-ion Air Purifying system main connector to PCB. • After that, press “e-ion” button again to confirm the e-ion indicator not blinking. •...

  • Page 54: Eco Patrol Operation

    11.13 ECO Patrol Operation • A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: •...
  • Page 55 • ECO Patrol Demo Mode Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition to enter internal setting mode. Press “Timer Decrement" button to select “EC demo”. Press “Timer Set” button to toggle ECO Patrol Demo mode. ƒ...
  • Page 56 • Other Information ECO Patrol, Powerful, Quiet and Mild Dry Cooling cannot be operated at the same time. ECO Patrol sensor initialized time is 70 seconds from power supplied to ECO Patrol sensor, or 70 seconds from the operation start. •...
  • Page 57 • Purpose is to improve sensor serviceability when sensor is malfunction. (1) Control starting condition When all of the conditions are formed ƒ Not in ECO Patrol Demo mode. ƒ ECO Patrol mode ON. ƒ When ECO Patrol sensor check mode signal is received; the procedure of selection is as shown: •...

  • Page 58: Protection Control

    12 Protection Control 12.1 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 59: Compressor Overheating Prevention Control (For S18, S24Kk Only)

    12.4.2 S18KK, S24KK • Overheating Prevention Control When the IPM temperature rises to 100°C, compressor operation will stop immediately. Compressor operation restarts after 3 minutes the temperature decreases to 95°C. • DC Peak Current Control When electric current to IPM exceeds set value of 18.5A, the compressor will stop operate. ƒ...

  • Page 60: Low Frequency Protection Control 2

    12.9 Low Frequency Protection Control 2 • When all below conditions comply, the compressor frequency will changed to lower frequency. Temperature, T, for: Cooling / Soft Dry Indoor intake air (°C) T < 15 or T • 30 Outdoor air (°C) T <...

  • Page 61: Odor Cut Control

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

  • Page 62: Servicing Mode

    13 Servicing Mode 13.1 Auto Off/On Button Auto OFF/ON Auto OFF/ON Button Pressed Button Pressed 5 sec Auto Operation Test Run Operation Stop (Forced Cooling Operation) Beep 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.

  • Page 63: Remote Control Button

    13.2 Remote Control Button 13.2.1 SET Button • To check remote control transmission code and store the transmission code to EEPROM Press “Set” button continuously for 10 seconds by using pointer Press “Timer Set” button unit a “beep” sound is heard as confirmation of transmission code change. •...

  • Page 64: Troubleshooting Guide

    14 Troubleshooting Guide 14.1 Refrigeration Cycle System In order to diagnose malfunctions, ensure the air conditioner is free Normal Pressure and Outlet Air Temperature (Standard) Gas Pressure Outlet air from electrical problems before inspecting the refrigeration cycle. Temperature Such problems include insufficient insulation, problem with the (kg/cm (°C) power source, malfunction of a compressor and a fan.
  • Page 65 14.1.1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressure High Pressure Electric current during operation Insufficient refrigerant Ô Ô Ô (gas leakage) Clogged capillary tube or Ô...

  • Page 66: Breakdown Self Diagnosis Function

    14.2 Breakdown Self Diagnosis Function 14.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code) • Once error occurred during operation, the unit will stop its operation, and Timer LED blinks. • Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will ON again.

  • Page 67: Error Code Table

    14.3 Error Code Table Diagnosis Emergency Abnormality / Protection control Abnormality Judgment Primary location to verify display Operation No abnormality detected Normal operation • Internal / external cable connection Indoor / Outdoor abnormal > 1 min after starting Indoor fan operation •...

  • Page 68: Troubleshooting Flowchart

    14.4 Troubleshooting Flowchart 14.4.1 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 69 14.4.2 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 70 14.4.3 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 71 14.4.4 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 72 14.4.5 H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions • A current transformer (CT) is detected by checking the compressor running frequency (• rated frequency) and CT detected input current (less than 1.14A) for continuously 20 seconds. Malfunction Caused •...
  • Page 73 14.4.6 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 74 14.4.7 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 75 14.4.8 H25 (e-ion Air Purifying System Abnormal) Malfunction Decision Conditions • During standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation. Malfunction Caused • Faulty indoor main PCB. • Faulty indoor e-ion power module. Troubleshooting...
  • Page 76 14.4.9 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 77 14.4.10 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 78 14.4.11 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 79 14.4.12 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 80 14.4.13 H58 (Patrol Sensor Abnormality) Malfunction Decision Conditions • If Patrol sensor feedback is 0V or 5V continuous for 6 hours. • Error will display only when the Patrol operation is ON. Malfunction Caused • Faulty connector connection. • Faulty Patrol sensor. Troubleshooting...
  • Page 81 14.4.14 H97 (Outdoor 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. Malfunction Caused • Operation stops due to short circuit inside the fan motor winding. •...
  • Page 82 14.4.15 H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions • During heating operation, the temperature detected by the indoor pipe temperature sensor is above 60°C. Malfunction Caused •...
  • Page 83 14.4.16 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions • Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) Malfunction Caused • Clogged air filter of the indoor unit • Dust accumulation on the indoor unit heat exchanger •...
  • Page 84 14.4.17 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • When cooling operation, when indoor pipe temperature or indoor heat exchanger temperature sensor is above 45°C. Malfunction Caused • Faulty connector connection. • Faulty indoor pipe temperature sensor. • Faulty indoor main PCB.
  • Page 85 14.4.18 F90 (Power Factor Correction Protection) Malfunction Decision Conditions • During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level. Malfunction Caused • DC voltage peak due to power supply surge.
  • Page 86 14.4.19 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions • During cooling, compressor frequency = Fcmax. • During cooling and heating operation, running current: 0.65A < I < 1.65A. • During cooling, indoor intake - indoor pipe < 4°C. Malfunction Caused •...
  • Page 87 14.4.20 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 88 14.4.21 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooling, when outdoor unit heat exchanger high temperature data (61°C) is detected by the outdoor pipe temperature sensor. Malfunction Caused • Outdoor pipe temperature rise due to short circuit of hot discharge air flow. •...
  • Page 89 14.4.22 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. Malfunction Caused • IPM overheats due to short circuit of hot discharge air flow. • IPM overheats due to defective of outdoor fan motor.
  • Page 90 14.4.23 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data (112°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 91 14.4.24 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operation, when an input over-current (16.8A) is detected by checking the input current value being detected by current transformer (CT) with the compressor running. Malfunction Caused • Over-current due to compressor failure.
  • Page 92 14.4.25 F99 (Output Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an output over-current (18.5A) is detected by checking the current that flows in the inverter DC peak sensing circuitry. Malfunction Caused • DC peak due to compressor failure. •...

  • Page 93: Disassembly And Assembly Instructions

    15 Disassembly and Assembly Instructions WARNING High Voltage is 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. 15.1 CS-S9KK CS-S12KK 15.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures...
  • Page 94 Figure 3 Figure 4 Figure 5 15.1.1.3 To remove discharge grille Figure 6...
  • Page 95 15.1.1.4 To remove control board Figure 7 15.1.1.5 To remove cross flow fan and indoor fan motor Figure 8 Figure 9...
  • Page 96 Figure 10 Figure 11...

  • Page 97: Cs-S18Kk Cs-S24Kk

    WARNING High Voltage is 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. 15.2 CS-S18KK CS-S24KK 15.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 15.2.1.1 To remove front grille...
  • Page 98 15.2.1.3 To remove power electronic controller Figure 14 Figure 15 Figure 16 Figure 17...
  • Page 99 15.2.1.4 To remove discharge grille Figure 18 15.2.1.5 To remove control board Figure 19 15.2.1.6 To remove cross flow fan and indoor fan motor Figure 20...
  • Page 100 Figure 21 Figure 22 Figure 23...

  • Page 101: Technical Data

    16 Technical Data 16.1 Operation Characteristics 16.1.1 CS-S9KK CU-S9KK • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 7.5m Compressor Frequency = Fc...
  • Page 102 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc...
  • Page 103 16.1.2 CS-S12KK CU-S12KK • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 7.5m Compressor Frequency = Fc...
  • Page 104 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc...
  • Page 105 16.1.3 CS-S18KK CU-S18KK • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: Compressor Frequency = Fc...
  • Page 106 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc...
  • Page 107 16.1.4 CS-S24KK CU-S24KK • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: Compressor Frequency = Fc...
  • Page 108 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc...

  • Page 109: Exploded View And Replacement Pars List

    17 Exploded View and Replacement Pars List 17.1 Indoor Unit 17.1.1 CS-S9KKQ CS-S12KKQ 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 110 REF. PART NAME & DESCRIPTION QTY. CS-S9KKQ CS-S12KKQ Remark CHASSY COMPLETE CWD50C1653 FAN MOTOR CWA921420 CROSS-FLOW FAN COMPLETE CWH02C1076 BEARING ASSY CWH64K007 SCREW - CROSS-FLOW FAN CWH551146 GENERATOR COMPLETE CWH94C0028 EVAPORATOR CWB30C2963 CWB30C2582 FLARE NUT (LIQUID) CWT251030 FLARE NUT (GAS)
  • Page 111 17.1.2 CS-S18KKQ CS-S24KKQ 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 112 REF NO. PART NAME & DESCRIPTION QTY. CS-S18KKQ CS-S24KKQ REMARK CHASSY COMPLETE CWD50C1654 FAN MOTOR L6CBYYYL0037 L6CBYYYL0039 CROSS FLOW FAN COMPLETE CWH02C1077 BEARING ASS’Y CWH64K007 SCREW - CROSS FLOW FAN CWH551146 GENERATOR COMPLETE CWH94C0028 EVAPORATOR CWB30C2584 CWB30C2775 FLARE NUT (LIQUID) CWT251030 FLARE NUT(GAS) CWT251032...
  • Page 113 POWER SUPPLY CORD CWA20C2851 CWA20C2853 (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). • “O” marked parts are recommended to be kept in stock.

  • Page 114: Outdoor Unit

    17.2 Outdoor Unit 17.2.1 CU-S9KKQ 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 115 17.2.2 CU-S12KKQ 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 116 REF. PART NAME & DESCRIPTION QTY. CU-S9KKQ CU-S12KKQ REMARK CHASSY ASSY CWD50K2107 CWD50K2071 FAN MOTOR BRACKET CWD541074 CWD541030 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951604 CWA951466 SCREW - FAN MOTOR MOUNT CWH55252J CWH55406J PROPELLER FAN ASSY CWH03K1020 CWH03K1010 NUT - PROPELLER FAN CWH56053J COMPRESSOR...
  • Page 117 17.2.3 CU-S18KKQ CU-S24KKQ 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 118 REF. DESCRIPTION & NAME QTY. CU-S18KKQ CU-S24KKQ REMARK CHASSY ASS’Y CWD50K2194 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5CS130XAD04 NUT-COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302302 FAN MOTOR BRACKET CWD541065 FAN MOTOR CWA951605 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASSY CWH03K1017...

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