Read Panasonic CS-TZ20TKEW-1 / CS-TZ25TKEW-1 / CS-TZ35TKEW-1 / CU-TZ20TKE-1 / CU-TZ25TKE-1 / CU-TZ35TKE-1 Service Manual online
Order No: PAPAMY1801024CE
Indoor Unit
Outdoor Unit
CS-TZ20TKEW-1
CS-TZ25TKEW-1
CS-TZ35TKEW-1
CS-TZ25TKEW-1
CS-TZ35TKEW-1
CU-TZ20TKE-1
CU-TZ25TKE-1
CU-TZ35TKE-1
CU-TZ25TKE-1
CU-TZ35TKE-1
Destination
Europe
Turkey
Please file and use this manual together with the service manual for Model No. CU-2RE15SBE, CU-2RE18SBE, CU-3RE18SBE,
CU-2TZ41TBE, CU-2TZ50TBE, CU-3TZ52TBE, Order No. PAPAMY1601016CE, PAPAMY1802045CE, PAPAMY1802091CE.
CU-2TZ41TBE, CU-2TZ50TBE, CU-3TZ52TBE, Order No. PAPAMY1601016CE, PAPAMY1802045CE, PAPAMY1802091CE.
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.
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.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, instation & operation manuals, before the
instation, maintenance and/or service of this product.
Specifications, designs and contents in this Service Manual are subject to change without notice.
2
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 5
3.
Specifications ..................................................... 9
4.
Features ............................................................. 18
5.
Location of Controls and Components .......... 19
5.1
Indoor Unit .................................................. 19
5.2
Outdoor Unit ............................................... 19
5.3
Remote Control .......................................... 19
6.
Dimensions ....................................................... 20
6.1
Indoor Unit .................................................. 20
6.2
Outdoor Unit ............................................... 21
7.
Refrigeration Cycle Diagram ........................... 22
8.
Block Diagram .................................................. 23
8.1
Indoor Unit .................................................. 23
8.2
Outdoor Unit ............................................... 24
9.
Wiring Connection Diagram ............................ 26
9.1
Indoor Unit .................................................. 26
9.2
Outdoor Unit ............................................... 27
10.
Electronic Circuit Diagram .............................. 28
10.1
Indoor Unit .................................................. 28
10.2
Outdoor Unit ............................................... 29
11.
Printed Circuit Board ....................................... 30
11.1
Indoor Unit .................................................. 30
11.2
Outdoor Unit ............................................... 32
12.
Installation Instruction ..................................... 33
12.1
Indoor Unit .................................................. 33
12.2
Outdoor Unit ............................................... 41
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 46
using R32 .......................................................... 46
13.1
About R32 Refrigerant ................................ 46
13.2
Characteristics of R32 Refrigerant ............. 46
13.3
Refrigerant piping installation • Tools used
in services ................................................... 48
in services ................................................... 48
13.4
New installation, Relocation, Repairing of
Refrigerant Cycle System The
Procedures ................................................. 52
Refrigerant Cycle System The
Procedures ................................................. 52
13.5
Piping installation of R32 ............................ 53
13.6
Installation, Relocation, and Service .......... 54
13.7
Repairing of refrigerant cycle / Brazing
point ............................................................ 58
point ............................................................ 58
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 64
code, no cooling / no warming .................... 64
14.
Operation Control ............................................. 66
14.1
Basic Function ............................................ 66
14.2
Indoor Fan Motor Operation ....................... 67
14.3
Outdoor Fan Motor Operation .................... 68
14.4
Airflow Direction .......................................... 69
14.5
Timer Control .............................................. 70
14.6
Sleep Mode Operation ............................... 71
14.7
Auto Restart Control ...................................71
14.8
Indication Panel ..........................................71
14.9
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ......................................71
Area of Dry Mode) ......................................71
14.10
Quiet Operation (Heating) ..........................72
14.11
Powerful Mode Operation ...........................72
15.
Operation Control (For Multi Split
Connection) .......................................................73
Connection) .......................................................73
15.1
Cooling operation .......................................73
15.2
Soft Dry Operation ......................................73
15.3
Heating Operation ......................................73
15.4
Automatic Operation ...................................74
15.5
Indoor Fan Motor Operation .......................74
15.6
Powerful Mode Operation ...........................74
15.7
Auto Restart Control ...................................74
15.8
Indication Panel ..........................................74
16.
Protection Control ............................................75
16.1
Protection Control for All Operations ..........75
16.2
Protection Control for Cooling & Soft Dry
Operation ....................................................77
Operation ....................................................77
16.3
Protection Control for Heating Operation ...78
17.
Servicing Mode .................................................80
17.1
Auto OFF/ON Button ..................................80
17.2
Heat Only Operation ...................................81
17.3
Remote Control Button ...............................82
18.
Troubleshooting Guide ....................................85
18.1
Refrigeration Cycle System ........................85
18.2
Breakdown Self Diagnosis Function ...........87
18.3
Error Codes Table ......................................88
18.4
Self-diagnosis Method ................................90
19.
Disassembly and Assembly Instructions ... 118
19.1
Indoor Electronic Controllers, Cross Flow
Fan and Indoor Fan Motor Removal
Procedures .............................................. 118
Fan and Indoor Fan Motor Removal
Procedures .............................................. 118
19.2
Outdoor Electronic Controller Removal
Procedure ................................................ 122
Procedure ................................................ 122
20.
Technical Data ............................................... 123
20.1
Cool Mode Performance Data ................. 123
20.2
Heat Mode Performance Data ................. 124
21.
Service Data ................................................... 125
21.1
Cool Mode Outdoor Air Temperature
Characteristic ........................................... 125
Characteristic ........................................... 125
21.2
Heat Mode Outdoor Air Temperature
Characteristic ........................................... 129
Characteristic ........................................... 129
21.3
Piping Length Correction Factor .............. 133
22.
Exploded View and Replacement Parts
List .................................................................. 134
List .................................................................. 134
22.1
Indoor Unit ............................................... 134
22.2
Outdoor Unit ............................................ 137
3
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before installation.
This installation manual must be used together with another installation manual incorporated in applicable outdoor unit as
complete full set of instructions.
complete full set of instructions.
Confirm the type of gas used 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.
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.
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.
and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
This appliance is not intended for accessibility by the general public.
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.
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.
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.
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.
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.
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.
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.
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.
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 R410A/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.
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.
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.
leakage, electrical shock or fire.
4
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
Use power supply cord 3 x 1.5 mm
2
(1/2 ~ 1.75HP) 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 (1/2 ~ 1.75HP) 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 (1/2 ~ 1.75HP) circuit breaker for the permanent connection. It must be a double pole switch with a minimum
3.0 mm contact gap.
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 (1/2 ~ 1.75HP) 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 (1/2 ~ 1.75HP) 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.
It may need two people to carry out the installation work.