Table of Contents
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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 product or 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.
TABLE OF CONTENTS
1. Safety Precautions.............................................3
2. Specification .......................................................5
3. Features ............................................................11
4. Location of Controls and Components .........12
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
WARNING
PRECAUTION OF LOW TEMPERATURE
9. Electronic Circuit Diagram ..............................19
10. Printed Circuit Board .......................................21
11. Installation Instruction.....................................24
12. Operation and Control .....................................33
Indoor Unit
CS-HE9NKE
CS-HE12NKE
CS-AE9NKE
9.1
Indoor Unit..................................................19
9.2
Outdoor Unit ...............................................20
10.1
Indoor Unit..................................................21
10.2
Outdoor Unit ...............................................23
11.1
Select The Best Location ...........................24
11.2
Indoor Unit..................................................25
11.3
Outdoor Unit ...............................................30
12.1
Basic Function............................................33
12.2
Indoor Fan Motor Operation.......................34
12.3
Outdoor Fan Motor Operation ....................35
12.4
Airflow Direction .........................................35
of Dry Mode)...............................................37
© Panasonic Appliances Air-Conditioning Malaysia
Sdn. Bhd. 2012. Unauthorized copying and distribution
is a violation of law.
Order No: PAPAMY1207093CE
Outdoor Unit
CU-HE9NKE
CU-HE12NKE
CU-AE9NKE
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Table of Contents
Troubleshooting
Related Manuals for Panasonic CS-HE9NKE
Summary of Contents for Panasonic CS-HE9NKE
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Page 1: Table Of Contents
Outdoor Fan Motor Operation ....35 8. Wiring Connection Diagram......17 12.4 Airflow Direction .........35 Indoor Unit..........17 12.5 Quiet operation (Cooling Mode/Cooling area Outdoor Unit ..........18 of Dry Mode)..........37 © Panasonic Appliances Air-Conditioning Malaysia Sdn. Bhd. 2012. Unauthorized copying and distribution is a violation of law. - Page 2 12.6 Quiet operation (Heating) ......37 12.7 Powerful Mode Operation......38 12.8 Timer Control..........38 12.9 Auto Restart Control ........38 12.10 Indication Panel ..........39 12.11 nanoe-G Operation........40 12.12 ECONAVI Operation ........43 12.13 +8/10°C Heat Operation ......47 13. Protection Control..........48 13.1 Protection Control For All Operations..48 13.2 Protection Control For Cooling &...
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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 refrigeration piping while compressor is operating and valves are opened condition 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 of refrigerant gas.
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Page 5: Specification
2. Specification Indoor CS-HE9NKE CS-AE9NKE Model Outdoor CU-HE9NKE CU-AE9NKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.85 2.50 3.00 Capacity BTU/h 2900 8530 10200 kcal/h 2150 2580 Running Current — — Input Power Annual Consumption —... - Page 6 Indoor CS-HE9NKE CS-AE9NKE Model Outdoor CU-HE9NKE CU-AE9NKE Type Cross-Flow Fan Material ASG33 Motor Type Transistor (8-poles) Input Power 44.9 Output Power Cool/Fan Heat Cool/Fan Heat Cool/Fan Speed Heat 1000 Cool/Fan 1090 Heat 1200 Cool/Fan 1150 Heat 1270 Type Propeller Fan...
- Page 7 Indoor CS-HE9NKE CS-AE9NKE Model Outdoor CU-HE9NKE CU-AE9NKE Inner Diameter Drain Hose Length Fin Material Aluminium (Pre Coat) Fin Type Slit Fin Indoor Heat Exchanger Row × Stage × FPI 2 × 17 × 21 Size (W × H × L) 636.5 ×...
- Page 8 Indoor CS-HE12NKE Model Outdoor CU-HE12NKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.85 3.50 4.00 Capacity BTU/h 2900 11900 13600 kcal/h 3010 3440 Running Current — — Input Power Annual Consumption — — 5.00 4.22 4.04 BTU/hW...
- Page 9 Indoor CS-HE12NKE Model Outdoor CU-HE12NKE Type Cross-flow Fan Material ASG33 Motor Type Transistor (8-poles) Input Power 44.9 Output Power Cool/Fan Heat Cool/Fan Heat Cool/Fan Speed Heat 1100 Cool/Fan 1130 Heat 1270 Cool/Fan 1200 Heat 1340 Type Propeller Fan Material Motor Type DC Type (8-poles) Input Power —...
- Page 10 Indoor CS-HE12NKE Model Outdoor CU-HE12NKE Inner Diameter Drain Hose Length Fin Material Aluminium (Pre Coat) Fin Type Slit Fin Indoor Heat Exchanger Row × Stage × FPI 2 × 17 × 21 Size (W × H × L) 636.5 × 357 × 25.4 Fin Material Aluminium Fin Type...
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Page 11: Features
Features • Inverter Technology Wider output power range Energy saving More precise temperature control • Air Purifying System with nanoe-G Deactivates and removes bacterial, viruses and mould • Environment Protection Non-ozone depletion substances refrigerant (R410A) • Long Installation Piping Long piping up to 15 meters during single split connection only •... -
Page 12: Location Of Controls And Components
4. Location of Controls and Components Indoor Unit Outdoor Unit Remote Control... -
Page 13: Dimensions
5. Dimensions Indoor Unit... -
Page 14: Outdoor Unit
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 Indoor Unit... -
Page 18: Outdoor Unit
Outdoor Unit Resistance of Compressor Windings CONNECTION 5RD132XBE21 U - V 1.897Ω U - W 1.907Ω V - W 1.882Ω... -
Page 19: Electronic Circuit Diagram
9. Electronic Circuit Diagram Indoor Unit... -
Page 20: Outdoor Unit
Outdoor Unit... -
Page 21: Printed Circuit Board
10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board 10.1.2 Indicator Printed Circuit Board... - Page 22 10.1.3 Receiver Printed Circuit Board 10.1.4 High Voltage Power Supply Printed Circuit Board...
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Page 23: Outdoor Unit
10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board... -
Page 24: 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 near the unit. -
Page 25: 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 it from vibration. Dimension Model HE9/12***, NE9/12***, XE9/12***, 485 mm 92 mm 435 mm 435 mm 127 mm 88 mm QE9/12***,WE9/12***, AE9/12*** ○... - Page 26 11.2.3 Indoor Unit Installation 11.2.3.1 For the right rear piping 11.2.3.2 For the right and right bottom piping 11.2.3.3 For the embedded piping (This can be used for left rear piping and bottom piping also.)
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Page 27: Connect The Cable To The Indoor Unit
11.2.4 Connect the Cable to the Indoor Unit The power supply cord, indoor and outdoor unit connection cable can be connected without removing the front grille. Install the indoor unit on the installing holder that mounted on the wall. Open the front panel and grille door by loosening the screw. Cable connection to the power supply through Isolating Devices (Disconnecting means). - Page 28 Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below. Secure the power supply cord and connection cable onto the control board with the holder. Close grille door by tighten with screw and close the front panel. Note: •...
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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. 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 31: Evacuation Of The Equipment
11.3.3 Evacuation of the Equipment Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. Connect the center hose of the charging set to a vacuum pump. -
Page 32: 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. Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord. -
Page 33: 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 34: 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 35: Outdoor Fan Motor Operation
ii. Auto Fan Speed [Cooling, Dry] • According to room temperature and setting temperature, indoor fan speed is determined automatically. • The indoor fan will operate according to pattern below. [Fan] • Indoor fan speed is fixed at predetermined speed. [Heating] •... -
Page 36: Vertical Airflow
12.4.1 Vertical Airflow Upper Vane Angle (°) Lower Vane Angle (°) Operation Mode Airflow Direction Auto with Heat Exchanger Temperature Heating Summer House Manual Auto 45 ~ 70 2 ~ 39 Cooling and Fan Manual Auto 45 ~ 70 2 ~ 39 Soft Dry Manual 1. -
Page 37: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)
2. Manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as Figure 2 above. Pattern Airflow Direction Patterns at Remote Control Vane Angle (°) 77.5 102.5 12.5 Quiet operation (Cooling Mode/Cooling area of Dry Mode) -
Page 38: 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 39: Indication Panel
12.10 Indication Panel POWER/DIECE TIMER QUIET POWERFUL NANOE-G +8/10°C HEAT ECONAVI Color Green Blue Orange Orange Orange Blue Green Green Timer Setting Powerful Mode +8/10°C HEAT Light ON Operation ON Deice Operation Quiet Mode ON nanoe-G ON Econavi ON Timer Setting Powerful Mode +8/10°C HEAT Light OFF... -
Page 40: Nanoe-G Operation
12.11 nanoe-G Operation • This operation provides clean air by producing great amount of negative ions and distribute through the discharge airflow to capture or deactivate moulds, bacteria or viruses. • nanoe-G operation start condition During unit running at any operation mode, if nanoe-G operation is activated, combination operation (operation mode + nanoe-G operation) starts. - Page 41 • nanoe-G check mode To enable nanoe-G check mode, during nanoe-G operation ON: Remote control normal mode Press continuously for 15s Transmit ECO demo code and after 2 seconds return to normal mode. Transmit check code and after 2 seconds return to normal mode.
- Page 42 nanoe-G breakdown error Judgment method • Hi-feedback voltage (at microcontroller) supplied to the nanoe-G system when nanoe-G operation is OFF; nanoe-G breakdown error show immediately. • It is due to indoor PCB or nanoe-G high voltage power supply damage. • Operations except nanoe-G continue.
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Page 43: Econavi Operation
12.12 ECONAVI Operation • ECONAVI start condition: When ECONAVI button is pressed. • ECONAVI stop conditions: When ECONAVI button is pressed again. When unit is OFF by OFF/ON button. When unit is OFF when OFF TIMER activates. When unit is OFF by AUTO OFF/ON button at indoor unit. When POWERFUL, QUIET, +8/10°C Heat operation activates. - Page 44 12.12.1.2 Judge Sunlight Intensity • Based on sunlight sensor output voltage, the sunlight intensity value will be computed and logged to sunlight intensity database. • The sunlight sensor sensitivity could be adjusted: Remote control normal mode Press and release within 10s Security Level 1: Less sensitive to sunlight intensity Default: (Battery insert) Security Level 3: Default sensitivity level...
- Page 45 12.12.1.3 Judge Ambient Condition • According to sunlight intensity over a period of time, the system will analyze the ambient condition is sunny, cloudy or night. 12.12.1.4 Temperature Shift Ambient condition Cloudy/ Sunny Cloudy/ Sunny Night Night COOL/DRY Mode +1°C Set Temperature HEAT Mode -1°C...
- Page 46 12.12.1.6 Sunlight Sensor Abnormality • Abnormality detection: When ECONAVI is ON, if the sunlight intensity value below minimum level continuously for 24 hours, the sunlight sensor disconnection error counter will increase by 1 time. If the ECONAVI is OFF, the 24 hours timer will be reset, but the sunlight sensor disconnection error counter will not be reset.
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Page 47: 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 48: 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 49 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.
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Page 50: 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 51: 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 52 13.3.3 Overload Protection Control • The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below. • If the heat exchanger temperature exceeds 60°C, compressor will stop. 60°C Frequency Reduce 52°C Frequency Limited 49°C 46°C Free Indoor Heat Exchanger Temp.
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Page 53: 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 54: 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 55: 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... - Page 56 15.1.1 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 (gas leakage) Clogged capillary tube or strainer...
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Page 57: 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 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 light up again. -
Page 58: Error Code Table
15.3 Error Code 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 •... - Page 59 • ECO sensor ECO sensor ECO sensor open or Continuous for 70s — abnormality short circuit • ECO and Indoor PCB Outdoor high High pressure sensor open • High pressure sensor Continuous for 1 pressure sensor — circuit during compressor minutes •...
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Page 60: 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 61 15.4.2 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 62 15.4.3 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 63 15.4.4 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 64 15.4.5 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 0.65A) for continuously 20 seconds. Malfunction Caused •...
- Page 65 15.4.6 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 66 15.4.7 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 67 15.4.8 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 68 15.4.9 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 69 15.4.10 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 70 15.4.11 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 71 15.4.12 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 72 15.4.13 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 73 15.4.14 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 74 15.4.15 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 75 15.4.16 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 76 15.4.17 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 77 15.4.18 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 78 15.4.19 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 79 15.4.20 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 80 15.4.21 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 81 15.4.22 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 82 15.4.23 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 83 15.4.24 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 84 15.4.25 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 85 15.4.26 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 86 15.4.27 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 87 15.4.28 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. •...
- Page 88 15.4.29 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 •...
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Page 89: Troubleshooting
15.4.30 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 90: Disassembly And Assembly Instructions
16. 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. 16.1 Indoor Unit 16.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal... - Page 91 Figure 3 Figure 4 16.1.1.3 To remove discharge grille Figure 5...
- Page 92 16.1.1.4 To remove control board Figure 6 16.1.1.5 To remove cross flow fan and indoor fan motor Figure 7...
- Page 93 Figure 8 Figure 9...
- Page 94 Figure 10...
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Page 95: Outdoor Electronic Controller Removal Procedure
16.2 Outdoor Electronic Controller Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Fig. 1 Remove the 8 screws of the Front Panel. Fig. -
Page 96: Technical Data
17. Technical Data 17.1 Operation Characteristics 17.1.1 CU-HE9NKE CU-AE9NKE • Cooling Characteristic [Condition] Indoor temperature: 27/19°C Remote condition: High fan speed, Cool 16°C Comp. Hz: Rated Fc Voltage: 230V... - Page 97 • Piping Length Characteristic [Condition] Indoor temperature: 27/19°C, 35/-°C Remote condition: High fan speed, Cool 16°C Comp. Hz: Rated Fc Voltage: 230V...
- Page 98 • Heating Characteristic [Condition] Indoor temperature: 20/-°C Remote condition: High fan speed, Heat 30°C Comp. Hz: Rated Fh Voltage: 230V...
- Page 99 • Piping Length Characteristic [Condition] Indoor temperature: 20/-°C, 7/6°C Remote condition: High fan speed, Heat 30°C Comp. Hz: Rated Fh Voltage: 230V...
- Page 100 17.1.2 CU-HE12NKE • Cooling Characteristic [Condition] Indoor temperature: 27/19°C Remote condition: High fan speed, Cool 16°C Comp. Hz: Rated Fc Voltage: 230V...
- Page 101 • Piping Length Characteristic [Condition] Indoor temperature: 27/19°C, 35/-°C Remote condition: High fan speed, Cool 16°C Comp. Hz: Rated Fc Voltage: 230V...
- Page 102 • Heating Characteristic [Condition] Indoor temperature: 20/-°C Remote condition: High fan speed, Heat 30°C Comp. Hz: Rated Fh Voltage: 230V...
- Page 103 • Piping Length Characteristic [Condition] Indoor temperature: 20/-°C, 7/6°C Remote condition: High fan speed, Heat 30°C Comp. Hz: Rated Fh Voltage: 230V...
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Page 104: Sensible Capacity Chart
17.2 Sensible Capacity Chart • CU-HE9NKE CU-AE9NKE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.48 1.88 0.42 2.32 1.80 0.45 2.16 1.73 0.48 1.96 1.65 0.52 19.0°C 2.50 0.46 19.5°C 2.72 1.97 0.42 2.55 1.89 0.46 2.37 1.82 0.49 2.15 1.73... -
Page 105: Exploded View And Replacement Parts List
18. Exploded View and Replacement Parts List 18.1 Indoor Unit CWH55025J CWH55051J 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 106 REF. PART NAME & DESCRIPTION CS-HE9NKE CS-AE9NKE CS-HE12NKE REMARK CHASSY COMPLETE CWD50C1730 ← ← FAN MOTOR ARW7666ACCB ← ← CROSS-FLOW FAN COMPLETE CWH02C1135 ← ← BEARING ASS'Y CWH64K1010 ← ← GENERATOR COMPLETE CWH94C0048 ← ← EVAPORATOR COMPLETE CWB30C3965 ← ←...
- Page 107 REF. PART NAME & DESCRIPTION CS-HE9NKE CS-AE9NKE CS-HE12NKE REMARK CWG861515 ← ← SHOCK ABSORBER (L) CWG713484 ← ← SHOCK ABSORBER (R) CWG713485 ← ← C.C.CASE CWG568509 ← ← (Note) • All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).
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Page 108: 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 109 REF. PART NAME & DESCRIPTION CU-HE9NKE CU-AE9NKE CU-HE12NKE REMARK CHASSIS ASSY CWD52K1310 ← ← SOUND PROOF MATERIAL CWG302742 ← ← FAN MOTOR BRACKET CWD541167 ← ← SCREW - FAN MOTOR BRACKET CWH551217 ← ← FAN MOTOR ARS6411AC ← ← SCREW - FAN MOTOR MOUNT CWH55252J ←...
- Page 110 REF. PART NAME & DESCRIPTION CU-HE9NKE CU-AE9NKE CU-HE12NKE REMARK 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. Printed in Malaysia SY0712-0...