Panasonic CS-E9NKUAW Service Manual

© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law. Order No: PHAAM1111087C1 Indoor Un

10 5. Dimensions 5.1 Indoor Unit

11 5.2 Outdoor Unit

12 6. Refrigeration Cycle Diagram

13 7. Block Diagram

14 8. Wiring Connection Diagram 8.1 Indoor Unit

15 8.2 Outdoor Unit

16 9. Electronic Circuit Diagram 9.1 Indoor Unit

17 9.2 Outdoor Unit

18 10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board

19 10.1.2 Power Printed Circuit Board 10.1.3 Indicator Printed Circuit Board

2 12.3 Outdoor Fan Motor Operation ...31 12.4 Airflow Direction...31 12.5 Quiet Operation (

20 10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board

21 11. Installation Instruction 11.1 Select the Best Location 11.1.1 Indoor Unit  Do not install the unit in excessive oil fume area such as kitche

22 11.2 Indoor Unit 11.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. T

23 11.2.3 Indoor Unit Installation 11.2.3.1 For the right rear piping 11.2.3.2 For the right bottom piping 11.2.3.3 For the embedded piping

24 11.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside connection cable can be connected without removing the front grille. 2.

25 11.2.5 Wiring Stripping and connecting requirement 11.2.5.1 Cutting and flaring the piping 1 Please cut using pipe cutter and then remove the

26 11.3 Outdoor Unit 11.3.1 Install the Outdoor Unit  After selecting the best location, start installation according to indoor/outdoor unit instal

27 11.3.2.3 Connecting the piping to outdoor multi Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare aft

28 8. Mount valve caps onto the 2-way valve and the 3-way valve. o Be sure to check for gas leakage. 11.3.3.1 Connect the Cable to the Outdoor U

29 12. Operation Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as

3 CAUTION WARNING WARNING 1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work

30 12.1.4.2 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remot

31 [Heating] o According to indoor pipe temperature, automatic heating fan speed is determined as follows.  Feedback control o Immediately after

32 12.4.2 Horizontal Airflow The horizontal airflow direction louvers can be adjusted manually by hand. 12.5 Quiet Operation (Cooling Mode/Cooling

33  Control contents o Fan speed auto  Indoor FM RPM depends on pipe temperature sensor of indoor heat exchanger. Auto fan speed is changed from n

34 12.10 Indication Panel Note:  If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation

35 13. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split conn

36 13.4 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote co

37 14. Protection Control 14.1 Protection Control For All Operations 14.1.1 Restart Control (Time Delay Safety Control)  The compressor will

38 14.1.5 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge tem

39 14.2.2 Cooling Overload Control  Pipe temperature limitation / restriction. o Detects the outdoor pipe temperature and carry out restrictio

4 CAUTION 19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refriger

40 14.2.6.2 Outdoor Air Temperature Control  The maximum current value is regulated when the outdoor air temperature rise above 57.2°F in order to

41 15. Servicing Mode 15.1 Auto Off/On Button 1 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button i

42 Press Auto OFF/ON button to toggle remote control receiving sound. - Short “beep”: Turn OFF remote control receiving sound. - Long “beep”: Turn O

43 16. Troubleshooting Guide 16.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems befor

44 16.1.1 Relationship between the condition of the air conditioner and pressure and electric current  Carry out the measurements of pressure, ele

45 16.2 Breakdown Self Diagnosis Function 16.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  Once error occurred during operation, t

46 16.3 Error Code Table

47 Note: “○” – Frequency measured and fan speed fixed The memory data of error code is erased when the power supply is cut off, or press the Auto Sw

48 16.4 Self-diagnosis Method 16.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of c

49 16.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of

5 2. Specification Indoor CS-E9NKUAW CS-E12NKUAW Model Outdoor CU-E9NKUA CU-E12NKUA Performance Test Condition ARI ARI Phase, Hz Single, 60 Sing

50 16.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heati

51 16.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the

52 16.4.5 H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions  A current transformer (CT) is detected by checking the co

53 16.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan

54 16.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, th

55 16.4.8 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, th

56 16.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating,

57 16.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and h

58 16.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling a

59 16.4.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement b

6 Type Propeller Propeller Material PP PP Motor Type DC (8 poles) DC (8 poles) Input Power W - - Output Power W 40 40 Outdoor Fan Spee

60 16.4.13 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temp

61 16.4.14 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and he

62 16.4.15 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during f

63 16.4.16 H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Condit

64 16.4.17 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions  Freeze prevention control takes place

65 16.4.18 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  When cooling operation, when indoor pipe temperature

66 16.4.19 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperatur

67 16.4.20 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  During startup and operation of cooling and heating, when Powe

68 16.4.21 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  During cooling, compressor frequency = Fcmax.  During cooling

69 16.4.22 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor r

7 DRY BULB WET BULB DRY BULB WET BULB Maximum 89.6 73.4 89.6 73.4 Indoor Operation Range (Cooling) Minimum 60.8 51.8 60.8 51.8 Maximum 109.4 78.8

70 16.4.23 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooling, when outdoor unit heat exchanger hi

71 16.4.24 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooling and heating, when IPM temperature data (212°F) is dete

72 16.4.25 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature d

73 16.4.26 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operation, when an input over-current (16.

74 16.4.27 F99 (Output Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an output over-current

75 WARNING 17. Disassembly and Assembly Instructions High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capa

76 17.1.1.2 To remove discharge grille

77 17.1.1.3 To remove control board 17.1.1.4 To remove cross flow fan and indoor fan motor

78

79 18. Technical Data 18.1 Operation Characteristics 18.1.1 CS-E9NK CU-E9NK  Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o

8 3. Features  Inverter Technology o Wider output power range o Energy saving o Quick Cooling o More precise temperature control  Environment

80  Piping Length Characteristic Cooling o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature

81  Heating Characteristic o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Frequency

82  Piping Length Characteristic Heating o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Outdoor temperature: 47°F (DBT

83 18.1.2 CS-E12NK CU-E12NK  Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping l

84  Piping Length Characteristic Cooling o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature

85  Heating Characteristic o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Frequency

86  Piping Length Characteristic Heating o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Outdoor temperature: 47°F (DBT

87 19. Exploded View and Replacement Parts List 19.1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replaceme

88 REF. NO. PART NAME & DESCRIPTION QTY. CS-E9NKUAW CS-E12NKUAW REMARK 1 CHASSIS COMPLETE 1 CWD50C1633 ← 2 FAN MOTOR 1 L6CBYYYL0055 ←

89 19.2 Outdoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as s

9 4. Location of Controls and Components 4.1 Indoor Unit 4.2 Outdoor Unit 4.3 Remote Control

90 REF. NO. PART NAME & DESCRIPTION QTY. CU-E9NKUA CU-E12NKUA REMARK 1 CHASSIS ASSY 1 CWD50K2081A ← 2 FAN MOTOR BRACKET 1 CWD541089 ←