Panasonic CS-Z20TKEW / CS-Z25TKEW / CS-Z35TKEW / CS-Z42TKEW / CS-Z50TKEW / CS-Z71TKEW / CS-XZ20TKEW / CS-XZ25TKEW / CS-XZ35TKEW / CS-XZ50TKEW / CU-Z20TKE / CU-Z25TKE / CU- / 35TKE / CU-Z42TKE / CU-Z50TKE / CU-Z71TKE / CU-Z20TKE / CU-Z25TKE / CU-Z35TKE / CU-Z50TKE Service Manual ▷ View online
© Panasonic Corporation 2017.
Order No: PAPAMY1701023CE
Indoor Unit
Outdoor Unit
CS-Z20TKEW
CS-Z25TKEW
CS-Z35TKEW
CS-Z42TKEW
CS-Z50TKEW
CS-Z71TKEW
CS-Z25TKEW
CS-Z35TKEW
CS-Z42TKEW
CS-Z50TKEW
CS-Z71TKEW
CS-XZ20TKEW
CS-XZ25TKEW
CS-XZ35TKEW
CS-XZ50TKEW
CS-XZ25TKEW
CS-XZ35TKEW
CS-XZ50TKEW
CU-Z20TKE
CU-Z25TKE
CU-Z35TKE
CU-Z42TKE
CU-Z50TKE
CU-Z71TKE
CU-Z20TKE
CU-Z25TKE
CU-Z35TKE
CU-Z50TKE
CU-Z25TKE
CU-Z35TKE
CU-Z42TKE
CU-Z50TKE
CU-Z71TKE
CU-Z20TKE
CU-Z25TKE
CU-Z35TKE
CU-Z50TKE
Destination
Europe
Turkey
WARNING
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 products dealt with in this service information by anyone else could result in serious injury or death.
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 products dealt with in this service information by anyone else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
CAUTION
R32 REFRIGERANT
– This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
2
CAUTION
Before performing any of the electrical installation works, please verify on which of the intended connection use. Generally
there are 2 types of indoor-outdoor connections:
there are 2 types of indoor-outdoor connections:
○
A
Single Connection (Single Indoor Unit connects with Single Outdoor Unit)
○
B
Multiple Connection (Multiple Indoor Unit connect with Single Outdoor Unit)
Both connections have different connecting methods. Any mismatch connections will result in malfunctions.
The following illustration demonstrates the correct electrical works for both type.
The following illustration demonstrates the correct electrical works for both type.
○
A
(Single Connection)
○
B
(Multiple Connection)
3
2
S1
Colour of wires (connection cable)
Terminals on the indoor unit
Terminals on the indoor unit
Terminals on the outdoor unit
L
1
N
(Power supply cord)
Terminals on the isolating devices
(Disconnecting means)
(L) (N)
3
2
S1
Colour of wires (connection cable)
Terminals on the indoor unit
Terminals on the outdoor unit
(Power supply cord)
Terminals on the isolating devices
(Disconnecting means)
(Disconnecting means)
1
2
3
2
3
L
1
N
S1
* Connection for multi inverter model
(Outdoor power supply)
Please refer to the provided Installation Instructions for the detailed procedures for connecting cables to Indoor Unit.
3
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 5
2.
Precaution for Using R32 Refrigerant .............. 8
3.
Specifications ................................................... 12
4.
Features ............................................................ 23
5.
Location of Controls and Components .......... 24
5.1
Indoor Unit .................................................. 24
5.2
Outdoor Unit ............................................... 24
5.3
Remote Control .......................................... 24
6.
Dimensions ....................................................... 25
6.1
Indoor Unit .................................................. 25
6.2
Outdoor Unit ............................................... 27
7.
Refrigeration Cycle Diagram ........................... 29
7.1
CS-Z20TKEW CU-Z20TKE
CS-Z25TKEW CU-Z25TKE
CS-Z35TKEW CU-Z35TKE
CS-Z42TKEW CU-Z42TKE
CS-XZ20TKEW CU-Z20TKE
CS-XZ25TKEW CU-Z25TKE
CS-XZ35TKEW CU-Z35TKE ..................... 29
CS-Z25TKEW CU-Z25TKE
CS-Z35TKEW CU-Z35TKE
CS-Z42TKEW CU-Z42TKE
CS-XZ20TKEW CU-Z20TKE
CS-XZ25TKEW CU-Z25TKE
CS-XZ35TKEW CU-Z35TKE ..................... 29
7.2
CS-Z50TKEW CU-Z50TKE
CS-Z71TKEW CU-Z71TKE
CS-XZ50TKEW CU-Z50TKE ..................... 30
CS-Z71TKEW CU-Z71TKE
CS-XZ50TKEW CU-Z50TKE ..................... 30
8.
Block Diagram .................................................. 31
8.1
CS-Z20TKEW CU-Z20TKE
CS-XZ20TKEW CU-Z20TKE ..................... 31
CS-XZ20TKEW CU-Z20TKE ..................... 31
8.2
CS-Z25TKEW CU-Z25TKE
CS-Z35TKEW CU-Z35TKE
CS-Z50TKEW CU-Z50TKE
CS-Z71TKEW CU-Z71TKE
CS-XZ25TKEW CU-Z25TKE
CS-XZ35TKEW CU-Z35TKE
CS-XZ50TKEW CU-Z50TKE ..................... 32
CS-Z35TKEW CU-Z35TKE
CS-Z50TKEW CU-Z50TKE
CS-Z71TKEW CU-Z71TKE
CS-XZ25TKEW CU-Z25TKE
CS-XZ35TKEW CU-Z35TKE
CS-XZ50TKEW CU-Z50TKE ..................... 32
8.3
CS-Z42TKEW CU-Z42TKE ........................ 33
9.
Wiring Connection Diagram ............................ 34
9.1
Indoor Unit .................................................. 34
9.2
Outdoor Unit ............................................... 35
10.
Electronic Circuit Diagram .............................. 38
10.1
Indoor Unit .................................................. 38
10.2
Outdoor Unit ............................................... 39
11.
Printed Circuit Board ....................................... 42
11.1
Indoor Unit .................................................. 42
11.2
Outdoor Unit ............................................... 46
12.
Installation Instruction ..................................... 49
12.1
Select the Best Location ............................ 49
12.2
Indoor Unit .................................................. 50
12.3
Outdoor Unit ............................................... 57
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 61
using R32 .......................................................... 61
13.1
About R32 Refrigerant ............................... 61
13.2
Characteristics of R32 Refrigerant ............. 61
13.3
Refrigerant piping installation • Tools used
in services .................................................. 63
in services .................................................. 63
13.4
New installation, Relocation, Repairing of
Refrigerant Cycle System The
Procedures ................................................. 67
Refrigerant Cycle System The
Procedures ................................................. 67
13.5
Piping installation of R32 ............................ 68
13.6
Installation, Relocation, and Service .......... 69
13.7
Repairing of refrigerant cycle / Brazing
point ............................................................ 73
point ............................................................ 73
13.8
<Reference> Analysis method for no error
code, no cooling / no warming ................... 79
code, no cooling / no warming ................... 79
14.
Operation Control ............................................. 81
14.1
Basic Function ............................................ 81
14.2
Indoor Fan Motor Operation ....................... 82
14.3
Outdoor Fan Motor Operation .................... 83
14.4
Airflow Direction ......................................... 84
14.5
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ...................................... 87
Area of Dry Mode) ...................................... 87
14.6
Quiet Operation (Heating) .......................... 87
14.7
Powerful Mode Operation .......................... 87
14.8
Timer Control .............................................. 88
14.9
Sleep Mode Operation ............................... 88
14.10
Auto Restart Control ................................... 88
14.11
Indication Panel .......................................... 89
14.12
nanoe Operation ......................................... 89
14.13
Mild Dry Cooling Operation ........................ 91
14.14
ECONAVI Operation .................................. 91
15.
Operation Control (For Multi Split
Connection) ...................................................... 99
Connection) ...................................................... 99
15.1
Cooling operation ....................................... 99
15.2
Soft Dry Operation ...................................... 99
15.3
Heating Operation ...................................... 99
15.4
Automatic Operation ................................ 100
15.5
Indoor Fan Motor Operation ..................... 100
15.6
Powerful Mode Operation ........................ 100
15.7
Auto Restart Control ................................. 100
15.8
Indication Panel ........................................ 100
15.9
Mild Dry Cooling Operation ...................... 100
16.
Protection Control .......................................... 101
16.1
Protection Control for All Operations ........ 101
16.2
Protection Control for Cooling & Soft Dry
Operation .................................................. 103
Operation .................................................. 103
16.3
Protection Control for Heating
Operation .................................................. 104
Operation .................................................. 104
17.
Servicing Mode ............................................... 106
17.1
Auto OFF/ON Button ................................ 106
17.2
Heat Only Operation ................................ 107
17.3
Remote Control Button ............................. 108
18.
Troubleshooting Guide .................................. 111
18.1
Refrigeration Cycle System ...................... 111
18.2
Breakdown Self Diagnosis Function ........ 113
18.3
Error Codes Table .................................... 114
18.4
Self-diagnosis Method .............................. 116
4
19.
Disassembly and Assembly Instructions ....144
19.1
CS-Z20TKEW CS-Z25TKEW
CS-Z35TKEW CS-Z42TKEW
CS-XZ20TKEW CS-XZ25TKEW
CS-XZ35TKEW ........................................144
CS-Z35TKEW CS-Z42TKEW
CS-XZ20TKEW CS-XZ25TKEW
CS-XZ35TKEW ........................................144
19.2
CS-Z50TKEW CS-Z71TKEW
CS-XZ50TKEW ........................................151
CS-XZ50TKEW ........................................151
19.3
Outdoor Electronic Controller Removal
Procedure .................................................158
Procedure .................................................158
20.
Technical Data ................................................161
20.1
Cool Mode Performance Data ..................161
20.2
Heat Mode Performance Data ..................163
21.
Service Data ....................................................165
21.1
Cool Mode Outdoor Air Temperature
Characteristic ............................................165
Characteristic ............................................165
21.2
Heat Mode Outdoor Air Temperature
Characteristic ............................................171
Characteristic ............................................171
21.3
Piping Length Correction Factor ...............177
22.
Exploded View and Replacement Parts
List ...................................................................179
List ...................................................................179
22.1
Indoor Unit ................................................179
22.2
Outdoor Unit .............................................189