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Specifications, designs and contents in this Service Manual are subject to change without notice.
TABLE OF CONTENTS
PAGE PAGE
1. Safety Precautions ............................................. 3
2. Precaution for Using R32 Refrigerant .............. 5
3. Specifications ................................................... 10
4. Features ............................................................. 25
5. Location of Controls and Components .......... 26
5.1 Indoor Unit .................................................. 26
5.2 Outdoor Unit ............................................... 26
5.3 Remote Control .......................................... 27
6. Dimensions ....................................................... 37
6.1 Indoor Unit .................................................. 37
6.2 Outdoor Unit ............................................... 39
7. Refrigeration Cycle Diagram ........................... 40
7.1 CS-Z25YKEA CU-Z25YKEA
CS-Z35YKEA CU-Z35YKEA
CS-Z42YKEA CU-Z42YKEA ..................... 40
7.2 CS-Z50YKEA CU-Z50YKEA ..................... 41
7.3 CS-Z71YKEA CU-Z71YKEA ..................... 42
8. Block Diagram .................................................. 43
9. Wiring Connection Diagram ............................ 44
9.1 Indoor Unit .................................................. 44
9.2 Outdoor Unit ............................................... 45
10. Electronic Circuit Diagram .............................. 47
10.1 Indoor Unit .................................................. 47
10.2 Outdoor Unit ............................................... 48
11. Printed Circuit Board ....................................... 50
11.1 Indoor Unit .................................................. 50
11.2 Outdoor Unit ............................................... 52
12. Installation Instruction ..................................... 53
12.1 Select the Best Location ............................. 53
12.2 Indoor Unit .................................................. 54
12.3 Outdoor Unit ............................................... 60
13. Installation and Servicing Air Conditioner
using R32 .......................................................... 66
13.1 About R32 Refrigerant ................................ 66
13.2 Characteristics of R32 Refrigerant ............. 66
13.3 Refrigerant piping installation • Tools used
in services ................................................... 68
13.4 New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 72
13.5 Piping installation of R32 ............................ 73
13.6 Installation, Relocation, and Service .......... 74
13.7 Repairing of refrigerant cycle /
Brazing point ............................................... 78
13.8 <Reference> Analysis method for no error
code, no cooling / no warming .................... 84
14. Operation Control ............................................. 86
14.1 Basic Function ............................................ 86
14.2 Indoor Fan Motor Operation ....................... 87
14.3 Outdoor Fan Motor Operation .................... 88
14.4 Airflow Direction .......................................... 89
14.5 Quiet Operation (Cooling) .......................... 92
14.6 Quiet Operation (Heating) ..........................92
14.7 Powerful Operation .....................................92
14.8 Weekly Timer ..............................................93
14.9 Auto Restart Control ...................................93
14.10 Indication Panel ..........................................94
14.11 WLAN Control .............................................94
14.12 Duty Rotation Control (Optional) ................98
14.13 Duty Rotation Setup ................................ 105
15. Protection Control ......................................... 112
15.1 Protection Control for All Operations ....... 112
15.2 Protection Control for Cooling & Soft Dry
Operation ................................................. 114
15.3 Protection Control for Heating
Operation ................................................. 115
16. Servicing Mode .............................................. 117
16.1 Auto OFF/ON Button ............................... 117
17. Troubleshooting Guide ................................. 118
17.1 Refrigeration Cycle System ..................... 118
17.2 Breakdown Self Diagnosis Function ........ 120
17.3 Error Codes Table ................................... 123
17.4 Self-diagnosis Method ............................. 125
18. Disassembly and Assembly Instructions ... 155
18.1 CS-Z25YKEA CS-Z35YKEA
CS-Z42YKEA ........................................... 155
18.2 CS-Z50YKEA CS-Z71YKEA .................. 162
18.3 To setup Wireless LAN Module and
Panasonic Comfort Cloud........................ 168
18.4 Outdoor Electronic Controller Removal
Procedure ................................................ 169
19. Technical Data ............................................... 171
19.1 Cool Mode Performance Data ................. 171
19.2 Heat Mode Performance Data ................. 174
20. Service Data ................................................... 175
20.1 Cool Mode Outdoor Air Temperature
Characteristic ........................................... 175
20.2 Heat Mode Outdoor Air Temperature
Characteristic ........................................... 180
20.3 Piping Length Correction Factor .............. 185
21. Exploded View and Replacement Parts
List .................................................................. 187
21.1 Indoor Unit ............................................... 187
21.2 Outdoor Unit ............................................ 193
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