3
TABLE OF CONTENTS
PAGE PAGE
1. Safety Precautions ............................................. 5
2. Precaution for Using R32 Refrigerant .............. 8
3. Specifications ................................................... 13
4. Features ............................................................ 27
5. Location of Controls and Components .......... 28
5.1 Indoor Unit .................................................. 28
5.2 Outdoor Unit ............................................... 28
5.3 Remote Control .......................................... 28
6. Dimensions ....................................................... 29
6.1 Indoor Unit .................................................. 29
6.2 Outdoor Unit ............................................... 30
7. Refrigeration Cycle Diagram ........................... 31
8. Block Diagram .................................................. 32
8.1 CS-Z20XKEW CU-Z20XKE
CS-Z25XKEW CU-Z25XKE
CS-XZ20XKEW CU-Z20XKE
CS-XZ25XKEW CU-Z25XKE .................... 32
8.2 CS-Z35XKEW CU-Z35XKE
CS-Z42XKEW CU-Z42XKE
CS-XZ35XKEW CU-Z35XKE .................... 33
9. Wiring Connection Diagram ............................ 34
9.1 Indoor Unit .................................................. 34
9.2 Outdoor Unit ............................................... 35
10. Electronic Circuit Diagram .............................. 37
10.1 Indoor Unit .................................................. 37
10.2 Outdoor Unit ............................................... 38
11. Printed Circuit Board ....................................... 40
11.1 Indoor Unit .................................................. 40
11.2 Outdoor Unit ............................................... 42
12. Installation Instruction ..................................... 44
12.1 Select the Best Location ............................ 44
12.2 Indoor Unit .................................................. 45
12.3 Select the Best Location ............................ 55
12.4 Outdoor Unit ............................................... 56
13. Installation and Servicing Air Conditioner
using R32 .......................................................... 60
13.1 About R32 Refrigerant ............................... 60
13.2 Characteristics of R32 Refrigerant ............. 60
13.3 Refrigerant piping installation • Tools used
in services .................................................. 62
13.4 New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 66
13.5 Piping installation of R32 ............................ 67
13.6 Installation, Relocation, and Service .......... 68
13.7 Repairing of refrigerant cycle /
Brazing point .............................................. 72
13.8 <Reference> Analysis method for no error
code, no cooling / no warming ................... 78
14. Operation Control ............................................. 80
14.1 Basic Function ............................................ 80
14.2 Indoor Fan Motor Operation ....................... 81
14.3 Outdoor Fan Motor Operation .................... 82
14.4 Airflow Direction ......................................... 83
14.5 Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ...................................... 86
14.6 Quiet Operation (Heating) .......................... 86
14.7 Powerful Mode Operation .......................... 87
14.8 Timer Control .............................................. 87
14.9 Sleep Mode Operation ............................... 87
14.10 Auto Restart Control ................................... 88
14.11 Indication Panel .......................................... 89
14.12 nanoe
TM
X Operation .................................. 89
14.13 Mild Dry Cooling Operation ........................ 91
14.14 Wireless LAN Control ................................. 91
15. Operation Control
(For Multi Split Connection) ............................ 94
15.1 Cooling operation ....................................... 94
15.2 Soft Dry Operation ...................................... 94
15.3 Heating Operation ...................................... 94
15.4 Automatic Operation .................................. 95
15.5 Indoor Fan Motor Operation ....................... 95
15.6 Powerful Mode Operation .......................... 95
15.7 Auto Restart Control ................................... 95
15.8 Indication Panel .......................................... 95
15.9 Mild Dry Cooling Operation ........................ 95
16. Protection Control ............................................ 96
16.1 Protection Control for All Operations .......... 96
16.2 Protection Control for Cooling & Soft Dry
Operation .................................................... 98
16.3 Protection Control for Heating Operation ... 99
17. Servicing Mode ............................................... 101
17.1 Auto OFF/ON Button ................................ 101
17.2 Heat Only Operation ................................ 102
17.3 Remote Control Button ............................. 104
18. Troubleshooting Guide .................................. 112
18.1 Refrigeration Cycle System ...................... 112
18.2 Breakdown Self Diagnosis Function ........ 114
18.3 Error Codes Table .................................... 115
18.4 Self-diagnosis Method .............................. 117
19. Disassembly and Assembly Instructions .... 146
19.1 Indoor Electronic Controllers,
Cross Flow Fan and Indoor Fan Motor
Removal Procedures ................................ 146
19.2 Outdoor Electronic Controller Removal
Procedure ................................................. 153
19.3 Panasonic Comfort Cloud ........................ 154
20. Technical Data ................................................ 167
20.1 Cool Mode Performance Data .................. 167
20.2 Heat Mode Performance Data ................. 169
21. Service Data .................................................... 171
21.1 Cool Mode Outdoor Air Temperature
Characteristic ........................................... 171
21.2 Heat Mode Outdoor Air Temperature
Characteristic ........................................... 177
21.3 Piping Length Correction Factor .............. 183
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