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Model
CS-TZ20TKEW CS-TZ25TKEW CS-TZ35TKEW CS-TZ42TKEW CS-MTZ16TKE CU-TZ20TKE CU-TZ25TKE CU-TZ35TKE CU-TZ42TKE
Pages
127
Size
23.23 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-tz20tkew-cs-tz25tkew-cs-tz35tkew-cs-tz42tkew-cs.pdf
Date

Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Service Manual ▷ View online

 
Order No: PAPAMY1702032CE 
 
 
 
 
Indoor Unit 
Outdoor Unit
CS-TZ20TKEW 
CS-TZ25TKEW 
CS-TZ35TKEW 
CS-TZ42TKEW 
CS-MTZ16TKE 
 
CU-TZ20TKE
CU-TZ25TKE
CU-TZ35TKE
CU-TZ42TKE
Destination
Europe
Turkey
 
Please file and use this manual together with the service manual for Model No. CU-2E12SBE, CU-2E15SBE, CU-2E18SBE,
CU-3E18PBE, CU-3E23SBE, CU-4E23PBE, CU-4E27PBE, CU-5E34PBE, CU-2RE15SBE, CU-2RE18SBE, CU-3RE18SBE,
Order No. PAPAMY1601016CE, PAPAMY1601015CE, PAPAMY1301048CE, PAPAMY1303046CE.
 
 
 
  
WARNING
 
 
 
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.
 
 
  
PRECAUTION OF LOW TEMPERATURE 
In order to avoid frostbite, be assured of no refrigerant leakage during the instation or repairing of refrigerant circuit.
 
 
 
  
CAUTION
 
R32 REFRIGERANT
 – This Air Conditioner contains and operates with refrigerant R32. 
THIS PRODUCT MUST ONLY BE INSTED OR SERVICED BY QUALIFIED PERSONNEL. 
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, instation & operation manuals, before the 
instation, maintenance and/or service of this product.
 
 
TABLE OF CONTENTS
 
PAGE    
PAGE
1.
 
Safety Precautions ............................................. 3
 
2.
 
Precaution for Using R32 Refrigerant .............. 5
 
3.
 
Specifications ..................................................... 9
 
4.
 
Features ............................................................. 20
 
5.
 
Location of Controls and Components .......... 21
 
5.1
 
Indoor Unit .................................................. 21
 
5.2
 
Outdoor Unit ............................................... 21
 
5.3
 
Remote Control .......................................... 21
 
6.
 
Dimensions ....................................................... 22
 
6.1
 
Indoor Unit .................................................. 22
 
6.2
 
Outdoor Unit ............................................... 23
 
7.
 
Refrigeration Cycle Diagram ........................... 24
 
8.
 
Block Diagram .................................................. 25
 
8.1
 
Indoor Unit .................................................. 25
 
8.2
 
Outdoor Unit ............................................... 26
 
9.
 
Wiring Connection Diagram ............................ 29
 
9.1
 
Indoor Unit .................................................. 29
 
9.2
 
Outdoor Unit ............................................... 30
 
10.
 
Electronic Circuit Diagram .............................. 33
 
10.1
 
Indoor Unit .................................................. 33
 
10.2
 
Outdoor Unit ............................................... 34
 
11.
 
Printed Circuit Board ....................................... 37
 
11.1
 
Indoor Unit .................................................. 37
 
11.2
 
Outdoor Unit ............................................... 39
 
12.
 
Installation Instruction ..................................... 42
 
12.1
 
Select the Best Location ............................. 42
 
12.2
 
Indoor Unit .................................................. 43
 
12.3
 
Outdoor Unit ............................................... 48
 
13.
 
Installation and Servicing Air Conditioner 
using R32 .......................................................... 54
 
13.1
 
About R32 Refrigerant ................................ 54
 
13.2
 
Characteristics of R32 Refrigerant ............. 54
 
13.3
 
Refrigerant piping installation • Tools used  
in services ................................................... 56
 
13.4
 
New installation, Relocation, Repairing of  
Refrigerant Cycle System The  
Procedures ................................................. 60
 
13.5
 
Piping installation of R32 ............................ 61
 
13.6
 
Installation, Relocation, and Service .......... 62
 
13.7
 
Repairing of refrigerant cycle / Brazing  
point ............................................................ 66
 
13.8
 
<Reference> Analysis method for no error  
code, no cooling / no warming .................... 72
 
14.
 
Operation Control ............................................. 74
 
14.1
 
Basic Function ............................................ 74
 
14.2
 
Indoor Fan Motor Operation ....................... 75
 
14.3
 
Outdoor Fan Motor Operation .................... 76
 
14.4
 
Airflow Direction .......................................... 77
 
14.5
 
Timer Control .............................................. 78
 
14.6
 
Sleep Mode Operation ............................... 79
 
14.7
 
Auto Restart Control ................................... 79
 
14.8
 
Indication Panel ..........................................79
 
14.9
 
Quiet Operation (Cooling Mode/Cooling  
Area of Dry Mode) ......................................79
 
14.10
 
Quiet Operation (Heating) ..........................80
 
14.11
 
Powerful Mode Operation ...........................80
 
15.
 
Operation Control (For Multi Split  
Connection) .......................................................81
 
15.1
 
Cooling operation .......................................81
 
15.2
 
Soft Dry Operation ......................................81
 
15.3
 
Heating Operation ......................................81
 
15.4
 
Automatic Operation ...................................82
 
15.5
 
Indoor Fan Motor Operation .......................82
 
15.6
 
Powerful Mode Operation ...........................82
 
15.7
 
Auto Restart Control ...................................82
 
15.8
 
Indication Panel ..........................................82
 
16.
 
Protection Control ............................................83
 
16.1
 
Protection Control for All Operations ..........83
 
16.2
 
Protection Control for Cooling & Soft Dry  
Operation ....................................................85
 
16.3
 
Protection Control for Heating  
Operation ....................................................86
 
17.
 
Servicing Mode .................................................88
 
17.1
 
Auto OFF/ON Button ..................................88
 
17.2
 
Heat Only Operation ...................................89
 
17.3
 
Remote Control Button ...............................90
 
18.
 
Troubleshooting Guide ....................................93
 
18.1
 
Refrigeration Cycle System ........................93
 
18.2
 
Breakdown Self Diagnosis Function ...........95
 
18.3
 
Error Codes Table ......................................96
 
18.4
 
Self-diagnosis Method ................................98
 
19.
 
Disassembly and Assembly Instructions ... 126
 
19.1
 
Indoor Electronic Controllers, Cross Flow  
Fan and Indoor Fan Motor Removal 
Procedures .............................................. 126
 
19.2
 
Outdoor Electronic Controller Removal  
Procedure ................................................  130
 
20.
 
Technical Data ............................................... 132
 
20.1
 
Cool Mode Performance Data ................. 132
 
20.2
 
Heat Mode Performance Data ................. 134
 
21.
 
Service Data ...................................................  135
 
21.1
 
Cool Mode Outdoor Air Temperature  
Characteristic ...........................................  135
 
21.2
 
Heat Mode Outdoor Air Temperature  
Characteristic ...........................................  139
 
21.3
 
Piping Length Correction Factor .............. 143
 
22.
 
Exploded View and Replacement Parts  
List .................................................................. 144
 
22.1
 
Indoor Unit ...............................................  144
 
22.2
 
Outdoor Unit ............................................ 148
 
 
1. Safety Precautions 
 
Read the following “SAFETY PRECAUTIONS” carefully before installation. 
 
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit 
for the model to be installed. 
 
The caution items stated here must be followed because these important contents are related to safety. The meaning of each 
indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the 
seriousness is classified by the following indications. 
 
  
WARNING
 
This indication shows the possibility of causing death or serious injury. 
  
CAUTION
 
This indication shows the possibility of causing injury or damage to properties only. 
 
 
The items to be followed are classified by the symbols: 
 
 
Symbol with white background denotes item that is PROHIBITED. 
   
 
Symbol with dark background denotes item that must be carried out. 
 
 
Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care 
and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference. 
 
    
WARNING 
1. 
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. Any 
unfit method or using incompatible material may cause product damage, burst and serious injury. 
 
2. 
Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child 
may climb up to outdoor unit and cross over the handrail causing an accident. 
 
3. 
Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet 
with other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire. 
 
4. 
The appliance shall be stored in a well ventilated room with indoor floor area larger than A
min
 (m
2
) [refer Table A] and without 
any continuously operating ignition source. Keep away from open flames, any operating gas appliances or any operating 
electric heater. Else, it may explode and cause injury or death. 
 
5. 
Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen. 
 
6. 
Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.     
 
 
7. 
Do not sit or step on the unit, you may fall down accidentally.     
 
 
8. 
The appliance shall be installed, and/or operated in a room with floor area larger than A
min
 (m
2
) [refer Table A] and keep away 
from ignition sources, such as heat/sparks/open flame or hazardous areas such as gas appliances, gas cooking, reticulated gas 
supply systems or electric cooking appliances, etc. 
 
9. 
Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing. 
 
10. 
When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc mix into 
refrigeration cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, 
injury etc. 
 
11. 
Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of 
ignition. Else, it may explode and cause injury or death. 
 
12.  Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc. 
 
13. 
Do not perform flare connection inside a building or dwelling or room, when joining the heat exchanger of indoor unit with 
interconnecting piping. Refrigerant connection inside a building or dwelling or room must be made by brazing or welding. Joint 
connection of indoor unit by flaring method can only be made at outdoor or at outside of a building or dwelling or room. Flare 
connection may cause gas leak and flammable atmosphere. 
 
14. 
 
For R32 model, use piping, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22) piping, flare nut and 
tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. 
 
Thickness for copper pipes used with R32 must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. 
 
It is desirable that the amount of residual oil less than 40 mg/10 m. 
15. 
Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical 
shock or fire. 
16. 
For refrigeration system work, install according to this installation instructions strictly. If installation is defective, it will cause water 
leakage, electrical shock or fire. 
    
WARNING 
17. 
Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or 
electrical shock. 
18. 
Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is not properly 
done, the set will drop and cause injury. 
19. 
For electrical work, follow the national regulation, legislation and this installation instructions. An independent circuit and single outlet 
must be used. If electrical circuit capacity is not enough or defect found in the electrical work, it will cause electrical shock or fire. 
20. 
Do not use joint cable for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction 
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external 
force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection. 
21. 
Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will 
cause fire or electrical shock. 
22. 
This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD), 
with sensitivity of 30mA at 0.1 sec or less. Otherwise, it may cause electrical shock and fire in case of equipment breakdown or 
insulation breakdown. 
23. 
During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing 
refrigeration piping and valves at opened position will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in 
explosion, injury etc. 
24. 
During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping while 
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in 
explosion, injury etc. 
25. 
Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare 
may break and cause refrigerant gas leakage. 
26. 
After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts 
with fire. 
27.  Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire. 
28.  Be aware that refrigerants may not contain an odour. 
29. 
This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone. 
Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown. 
 
 
    
CAUTION 
1. 
Do not install the unit in a place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding 
of the unit, it may cause fire. 
 
2. 
Prevent liquid or vapor from entering sumps or sewers since vapor is heavier than air and may form suffocating atmospheres. 
 
3. 
Do not release refrigerant during piping work for installation, re-installation and during repairing refrigeration parts. Take care of 
the liquid refrigerant, it may cause frostbite. 
 
4. 
Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc. 
 
5. 
Do not touch the sharp aluminium fin, sharp parts may cause injury.     
 
 
6. 
Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the 
furniture. 
7. 
Select an installation location which is easy for maintenance. Incorrect installation, service or repair of this air conditioner may increase 
the risk of rupture and this may result in loss damage or injury and/or property. 
8. 
Power supply connection to the room air conditioner. 
Use power supply cord 3 x 1.5 mm
2
 (3/4 ~ 1.75HP), 3 x 2.5 mm
2
 (2.0 ~ 2.5HP) type designation 60245 IEC 57 or heavier cord. 
Connect the power supply cord of the air conditioner to the mains using one of the following method. 
Power supply point should be in easily accessible place for power disconnection in case of emergency. 
In some countries, permanent connection of this air conditioner to the power supply is prohibited. 
1)  Power supply connection to the receptacle using power plug. 
     Use an approved 15/16A (3/4 ~ 1.75HP) or 16A (2.0HP) or 20A (2.5HP) power plug with earth pin for the connection to the socket. 
2)  Power supply connection to a circuit breaker for the permanent connection. 
     Use an approved 16A (3/4 ~ 2.0HP) or 20A (2.5HP) circuit breaker for the permanent connection. It must be a double pole switch  
     with a minimum 3.0 mm contact gap. 
9. 
Installation work. 
It may need two people to carry out the installation work. 
 
 
 
 
 
 
 
 
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  • Here you can View online or download the Service Manual for the Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Air Conditioner. Information contained in Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.