Panasonic CS-NE9LKE Service Manual

Panasonic CS-NE9LKE Service Manual

Indoor/outdoor unit
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Table of Contents

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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
3 Features ------------------------------------------------------------11
4.1. Indoor Unit--------------------------------------------------12
4.2. Outdoor Unit -----------------------------------------------12
4.3. Remote Control -------------------------------------------12
5 Dimensions--------------------------------------------------------13
5.1. Indoor Unit--------------------------------------------------13
5.2. Outdoor Unit -----------------------------------------------14
6 Refrigeration Cycle Diagram --------------------------------15
7 Block Diagram----------------------------------------------------16
8 Wiring Connection Diagram ---------------------------------17
8.1. Indoor Unit--------------------------------------------------17
8.2. Outdoor Unit -----------------------------------------------18
9 Electronic Circuit Diagram -----------------------------------19
9.1. Indoor Unit--------------------------------------------------19
Indoor Unit
CS-NE9LKE
CS-NE12LKE
CS-XE9LKE-5
CS-XE12LKE-5 CU-NE12LKE
PAGE
9.2. Outdoor Unit----------------------------------------------- 20
10 Printed Circuit Board ------------------------------------------ 21
10.1. Indoor Unit ------------------------------------------------- 21
10.2. Outdoor Unit----------------------------------------------- 24
11 Installation Instruction ---------------------------------------- 25
11.1. Select the Best Location ------------------------------- 25
11.2. Indoor Unit ------------------------------------------------- 26
11.3. Outdoor Unit----------------------------------------------- 30
12 Operation and Control ---------------------------------------- 32
12.1. Basic Function -------------------------------------------- 32
12.2. Indoor Fan Motor Operation--------------------------- 33
12.3. Outdoor Fan Motor Operation ------------------------ 34
12.4. Airflow Direction ------------------------------------------ 34
of Dry Mode) ---------------------------------------------- 35
12.6. Quiet operation (Heating) ------------------------------ 35
12.7. Powerful Mode Operation------------------------------ 36
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1007139C2
Air Conditioner
Outdoor Unit
CU-NE9LKE
CU-NE12LKE
CU-NE9LKE
PAGE

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Summary of Contents for Panasonic CS-NE9LKE

  • Page 1: Table Of Contents

    Dry Mode) ---------------------------------------------- 35 9 Electronic Circuit Diagram -----------------------------------19 12.6. Quiet operation (Heating) ------------------------------ 35 9.1. Indoor Unit--------------------------------------------------19 12.7. Powerful Mode Operation------------------------------ 36 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law.
  • Page 2 12.8. Timer Control---------------------------------------------- 36 12.9. Auto Restart Control------------------------------------- 36 12.10. Indication Panel------------------------------------------- 36 12.11. Patrol Operation ------------------------------------------ 37 12.12. e-ion Operation ------------------------------------------- 39 12.13. +8/10°C Heat Operation-------------------------------- 42 13 Protection Control ---------------------------------------------- 43 13.1. Protection Control For All Operations--------------- 43 13.2.
  • 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 18. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.
  • Page 5: Specifications

    2 Specifications INDOOR CS-NE9LKE, CS-XE9LKE-5 MODEL OUTDOOR CU-NE9LKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.60 2.50 3.00 Capacity BTU/h — — — kcal/h 2150 2580 Running Current — — Input Power Annual Consumption —...
  • Page 6 INDOOR CS-NE9LKE, CS-XE9LKE-5 MODEL OUTDOOR CU-NE9LKE Type Propeller Fan Material Motor Type DC Type (8-poles) Input Power — Output Power Cool Speed Heat Moisture Removal L/h (Pt/h) 1.5 (3.2) Cool/Fan m 6.9 (243) /min (ft /min) Heat 7.3 (256) /min (ft...
  • Page 7 INDOOR CS-NE9LKE, CS-XE9LKE-5 MODEL OUTDOOR CU-NE9LKE Protection Device Electronic Control Dry Bulb Wet Bulb Maximum Cooling Minimum Maximum — Indoor Operation Range Heating Minimum — Maximum — +8/10°C HEAT Minimum — Maximum Cooling Minimum — Maximum Outdoor Operation Range Heating Minimum —...
  • Page 8 INDOOR CS-NE12LKE, CS-XE12LKE-5 MODEL OUTDOOR CU-NE12LKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.60 3.50 4.00 Capacity BTU/h — — — kcal/h 3010 3440 Running Current — — Input Power 1.17k Annual Consumption — —...
  • Page 9 INDOOR CS-NE12LKE, CS-XE12LKE-5 MODEL OUTDOOR CU-NE12LKE Type Propeller Fan Material Motor Type DC Type (8-poles) Input Power — Output Power Cool Speed Heat Moisture Removal L/h (Pt/h) 2.0 (4.2) Cool/Fan m 7.5 (265) /min (ft /min) Heat 9.4 (329) /min (ft /min) Cool/Fan m 8.4 (297)
  • Page 10 INDOOR CS-NE12LKE, CS-XE12LKE-5 MODEL OUTDOOR CU-NE12LKE Protection Device Electronic Control Dry Bulb Wet Bulb Maximum Cooling Minimum Maximum — Indoor Operation Range Heating Minimum — Maximum — +8/10°C HEAT Minimum — Maximum Cooling Minimum — Maximum Outdoor Operation Range Heating Minimum —...
  • Page 11: Features

    3 Features • Inverter Technology - Wider output power range - Energy saving - More precise temperature control • E-ion Air Purifying System with Patrol Sensor - Active e-ions are released to catch dust particles and bring them back the large positively charged filter •...
  • Page 12: Location Of Controls And Components

    4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control...
  • Page 13: Dimensions

    5 Dimensions 5.1. Indoor Unit...
  • Page 14: Outdoor Unit

    5.2. Outdoor Unit...
  • Page 15: Refrigeration Cycle Diagram

    6 Refrigeration Cycle Diagram...
  • Page 16: Block Diagram

    7 Block Diagram...
  • Page 17: Wiring Connection Diagram

    8 Wiring Connection Diagram 8.1. Indoor Unit...
  • Page 18: Outdoor Unit

    8.2. Outdoor Unit...
  • Page 19: Electronic Circuit Diagram

    9 Electronic Circuit Diagram 9.1. Indoor Unit...
  • Page 20: Outdoor Unit

    9.2. Outdoor Unit...
  • Page 21: Printed Circuit Board

    10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board...
  • Page 22 10.1.2. Power Printed Circuit Board 10.1.3. Indicator Printed Circuit Board...
  • Page 23 10.1.4. Receiver Printed Circuit Board 10.1.5. High Voltage Power Supply Printed Circuit Board...
  • Page 24: Outdoor Unit

    10.2. Outdoor Unit...
  • Page 25: Installation Instruction

    11 Installation Instruction 11.1. Select the Best Location 11.1.3. Indoor/Outdoor Unit Installation Diagram 11.1.1. 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 26: Indoor Unit

    11.2. Indoor Unit 11.2.1. How to Fix Installation Plate 11.2.2. To Drill a Hole in the Wall and Install a Sleeve of Piping The mounting wall shall be strong and solid enough to prevent it from the vibration. 1. Insert the piping sleeve to the hole. 2.
  • Page 27 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping (This can be used for right bottom piping also.)
  • Page 28: Connect The Cable To The Indoor Unit

    11.2.4. 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 flexible cord, type designation 245 IEC 57 or heavier cord.
  • Page 29 CUTTING AND FLARING THE PIPING 1. Please cut using pipe cutter and then remove the burrs. 2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3.
  • Page 30: Outdoor Unit

    11.3. Outdoor Unit 11.3.1. Install the Outdoor Unit • After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
  • Page 31: Connect The Cable To The Outdoor Unit

    5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve. 6. Tighten the service port caps of the 3-way valve at a torque of 18 N m with a torque wrench. • 7.
  • Page 32: Operation And Control

    12 Operation and 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 33: 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, indoor intake air temperature and outdoor air temperature. • During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.
  • Page 34: 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 <...
  • Page 35: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    12.4.2. Horizontal Airflow • The horizontal airflow direction louvers can be adjusted manually by hand. 12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode) A. Purpose To provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition •...
  • Page 36: Powerful Mode Operation

    C. Control contents a. Fan Speed manual 1. Fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. 2. Fan speed for quiet operation is reduced from setting fan speed. b.
  • Page 37: Patrol Operation

    12.11. Patrol Operation A. Purpose To monitor air dirtiness level by using Patrol sensor and to maintain air freshness by activates e-ion operation. B. Control Condition a. Patrol operation start condition • When the unit operation is started with “OFF/ON” button. •...
  • Page 38 • Dirtiness level sensitivity adjustment It is possible to change the gas sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted accordingly: 1. Press and release “SET” buttton. 2. Press “Timer increment” / “Timer decrement” button to select sensitivity. (Low Standard (Default) High) 3.
  • Page 39: E-Ion Operation

    h. Power failure • During Patrol individual operation, if power failure occurs, after power resumes, Patrol individual operation resumes immediately. • During combination operation, if power failure occurs, after power resumes combination operation resume immediately. i. Error Detection Control • The Patrol error detection control starts once the power is supplied to Patrol sensor. However, the error will display when the Patrol operation is ON.
  • Page 40 C. Control Content a. Indoor fan control • During any operation mode combines with e-ion operation, fan speed follows respective operation mode. • During e-ion individual operation - only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is pressed, no signal is sent to air conditioner, and no change on LCD display.
  • Page 41 Error Reset Method • Press “OFF/ON” button to OFF the operation. • Press AUTO OFF/ON button at indoor unit to OFF the operation. • OFF Timer activates. • Press “e-ion” button during e-ion individual mode. • Power supply reset. iii. e-ion breakdown Judgement Method •...
  • Page 42: 8/10°C Heat Operation

    12.13. +8/10 C Heat Operation ° • +8/10°C Heat operation provides heating at low setting temperature in unoccupied houses during winter for the purpose of protecting equipments or housing appliances which may be destroyed by the extreme cold weather. • This operation can be ON by pressing the +8/10°C heat button on the remote control. •...
  • 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 13.1.5. 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 112°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. Dew Prevention Control 2 • To prevent dew formation at indoor unit discharge area. • This control starts if all conditions continue for 20 minutes: - Operated with Cooling or Soft Dry Mode. - Indoor intake temperature is between 25°C and 29°C. - Outdoor air temperature is less than 30°C.
  • Page 47: Servicing Mode

    14 Servicing Mode 14.1. Auto OFF/ON Button 1. 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. 2.
  • Page 48: Remote Control Button

    4. 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 15.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air Electric current Electric current Low Pressure High Pressure Low Pressure High Pressure conditioner during operating during operating Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer...
  • Page 51: Breakdown Self Diagnosis Function

    15.2. Breakdown Self Diagnosis Function 15.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code) • Once abnormality has occurred during operation, the unit 7. The breakdown diagnosis mode will be canceled unless will stop its operation, and Timer LED blinks. pressing the CHECK button continuously for 5 seconds or •...
  • Page 52: Error Codes Table

    15.3. Error Codes Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgement operation No memory of failure — Normal operation — — Indoor/outdoor After operation for Indoor fan only Indoor/outdoor • Indoor/outdoor wire terminal abnormal 1 minute operation can communication not establish •...
  • Page 53 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgement operation Compressor abnormal 4 times happen — Compressor abnormal • Power transistor module faulty or revolution within 20 minutes revolution compressor lock Outdoor cooling high 4 times happen —...
  • Page 54: Self-Diagnosis Method

    15.4. Self-diagnosis Method 15.4.1. 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 55 15.4.2. 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 56 15.4.3. 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 57 15.4.4. 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 0.65A) for continuously 20 seconds. Malfunction Caused • CT defective •...
  • Page 58 15.4.5. 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 59 15.4.6. H23 (Indoor Pipe Temperature Sensor 1 Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 1 are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 60 15.4.7. H24 (Indoor Pipe Temperature Sensor 2 Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 61 15.4.8. 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 62 15.4.9. 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. • Faulty sensor. •...
  • Page 63 15.4.10. 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. • Faulty sensor. •...
  • Page 64 15.4.11. 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 sen- sor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 65 15.4.12. 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. Troubleshooting...
  • Page 66 15.4.13. 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 67 15.4.14. 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 68 15.4.15. 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 • Clogged air filter of the indoor unit •...
  • Page 69 15.4.16. 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 70 15.4.17. F11 (4-way valve Abnormality) Malfunction Decision Conditions • When heating operation, when indoor pipe temperature is below 10°C • When cooling operation, when indoor pipe temperature is above 45°C Malfunction Caused • Connector in poor contact • Faulty sensor •...
  • Page 71 15.4.18. 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 72 15.4.19. F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions • During cooling, compressor frequency = Fcmax. • During heating, compressor frequency > Fhrated. • During cooling and heating operation, running current: 0.65A < I < 1.65A. • During cooling, indoor intake - indoor pipe < 4°C •...
  • Page 73 15.4.20. 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 74 15.4.21. 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 75 15.4.22. 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. Multi Models Only • Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. •...
  • Page 76 15.4.23. 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. Troubleshooting...
  • Page 77 15.4.24. F98 (Input Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, 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 •...
  • Page 78 15.4.25. 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 79: Disassembly And Assembly Instructions

    16 Disassembly and Assembly Instructions High voltages 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.
  • Page 80 16.1.3. To remove discharge grille...
  • Page 81 16.1.4. To remove control board 16.1.5. To remove cross flow fan and indoor fan motor...
  • Page 83: Outdoor Electronic Controller Removal Procedure

    16.2. Outdoor Electronic Controller Removal Procedure 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 84: Technical Data

    17 Technical Data 17.1. Operation Characteristics 17.1.1. CU-NE9LKE...
  • Page 88 17.1.2. CU-NE12LKE...
  • Page 92: Sensible Capacity Chart

    17.2. Sensible Capacity Chart • CU-NE9LKE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.48 1.88 0.49 2.32 1.80 0.53 2.16 1.73 0.57 1.96 1.65 0.61 19.0°C 2.50 0.54 19.5°C 2.72 1.97 0.50 2.55 1.89 0.54 2.37 1.82 0.58 2.15 1.73 0.63...
  • Page 93: Exploded View And Replacement Parts List

    18 Exploded View and Replacement Parts List 18.1. 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 94 REF. PART NAME & DESCRIPTION QTY. CS-NE9LKE CS-XE9LKE-5 CS-NE12LKE CS-XE12LKE-5 REMARKS CHASSY COMPLETE CWD50C1653 CWD50C1605 CWD50C1653 CWD50C1605 ← ← ← FAN MOTOR ARW6101CB ← ← ← CROSS FLOW FAN COMPLETE CWH02C1076 ← ← ← BEARING ASS’Y CWH64K007 SCREW - CROSS FLOW FAN CWH551146 ←...
  • Page 95: Outdoor Unit

    18.2. Outdoor 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 96 REF. NO. PART NAME & DESCRIPTION QTY. CU-NE9LKE CU-NE12LKE REMARKS ← CHASSY ASS’Y CWD50K2202 ANTI-VIBRATION BUSHING CWH50077 ← ← COMPRESSOR 5CS110XBD04 NUT-COMPRESSOR MOUNT CWH56000J ← ← CRANKCASE HEATER CWA341060 SOUND PROOF MATERIAL CWG302466 ← ← FAN MOTOR BRACKET CWD541089 ← FAN MOTOR ARW44W8P40AC ←...

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