Read Panasonic CS-LE9NKD / CS-LE12NKD / CU-LE9NKD / CU-LE12NKD Service Manual online
Order No: PAPAGZ120408CE
Indoor Unit
Outdoor Unit
CS-LE9NKD
CS-LE12NKD
CS-LE12NKD
CU-LE9NKD
CU-LE12NKD
CU-LE12NKD
TABLE OF CONTENTS
1.
Safety Precautions .............................................3
2.
Specification .......................................................5
3.
Features ..............................................................7
4.
Location of Controls and Components............8
4.1
Indoor Unit......................................................8
4.2
Outdoor Unit ...................................................8
4.3
Remote Control ..............................................8
5.
Dimensions .........................................................9
5.1
Indoor Unit......................................................9
5.2
Outdoor Unit .................................................10
6.
Refrigeration Cycle Diagram...........................11
7.
Block Diagram ..................................................12
8.
Block Diagram ..................................................13
9.
Printed Circuit Board .......................................15
9.1
Indoor Unit....................................................15
10.
Installation Instruction.....................................16
10.1
Select the Best Location ..............................16
10.2
Indoor Unit....................................................17
10.3
Outdoor Unit .................................................19
11.
Service Mode ....................................................22
11.1
Auto OFF/ON Button ....................................22
11.2
Select Remote Control Transmission Code.22
11.3
Operate and Display of Remote Control ......23
12.
Operation Control.............................................25
12.1
Basic Function..............................................25
12.2
Indoor Fan Motor Operation.........................27
12.3
Outdoor Fan Motor Operation ......................28
13.
Protection control ............................................31
13.1
Protection Control for All Operations ...........31
13.2
Protection Control For Cooling and Soft Dry
Operation...............................................................33
13.3
Indoor Piping Air Temperature Control
(Heating)................................................................34
14.
Troubleshooting Guide....................................36
14.1
Refrigeration cycle system ...........................36
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.
WARNING
2
14.2
Breakdown Self Diagnosis Function ............37
15.
Technical Data ..................................................39
15.1
Operation Characteristics.............................39
16.
Disassembly and Assembly Instructions ......47
17.
Exploded View and Replacement Pars List ...51
17.1
Indoor Unit ....................................................51
17.2
Outdoor Unit .................................................53
3
CAUTION
WARNING
WARNING
1. Safety Precautions
•
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
•
Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the
power plug and main circuit for the model installed.
power plug and main circuit for the model 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 or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury
This indication shows the possibility of causing injury or damage to properties.
•
The items to be followed are classified by the symbols:
•
Carry out test run to confirm that no abnormality occurs after the servicing. 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.
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building,
child may climb up to outdoor unit and cross over the handrail and causing accident.
2. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single
outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire
3. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may
happen.
4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
5. Do not sit or step on the unit, you may fall down accidentally.
6. Keep plastic bag (package material) away from small children, it may cling to nose and mouth and prevent breathing.
7. When install or relocate 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 refrigerant cycle and result in
explosion, injury etc.
explosion, injury etc.
8. • For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same
may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use
only R410A materials.
only R410A materials.
• Thickness or copper pipes used with R410A 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 is less than 40 mg/10 m.
• It is desirable that the amount of residual oil is less than 40 mg/10 m.
9. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage,
electrical shock or fire.
electrical shock or fire.
10. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical
shock or fire.
11. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water
leakage, fire or electrical shock.
12. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or
installation is not properly done, the set will drop and cause injury.
13. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent
circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will
cause electrical shock or fire.
cause electrical shock or fire.
14. Do not use joint cable for indoor/outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to
installation instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
15. 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.
16. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation
breakdown.
breakdown.
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
4
CAUTION
17. During installation, install the refrigerant piping properly before running the compressor. Operation of compressor
without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
refrigeration cycle and result in explosion, injury etc.
18. During pump down operation, stop the compressor before remove 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.
refrigeration cycle and result in explosion, injury etc.
19. 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.
20. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the
refrigerant contacts with fire.
21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with
fire.
22. Recommended installation height for indoor unit shall be at least 2.5 m.
23. The appliance shall be installed in accordance with national wiring regulations.
24. Indoor unit must be installed close against the wall.
24. All-pole disconnection incorporated in the fixed wiring is to be provided.
25. 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 equipment breakdown or insulation breakdown.
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at
surrounding of the unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts.
Take care of the liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the celling, etc.
4. Thermal fuse specification for indoor unit: 250V 3.15A T3.15AL; outdoor unit: 250V 3.15A T3.15AL.
5. Do not touch outdoor unit air inlet and aluminums fin. It 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.
8. Power supply connection to the air conditioner.
Connect the power supply cord of the air conditioner to the mains using one of the following methods.
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 a power plug.
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 a power plug.
Use an approved 15/16A power plug with earth pin for the connection to the receptacle.
2) Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for
the permanent connection. It must be a double pole switch with a minimum 3.5 mm contact gap.
9. Service and Installation work.
It may need two people to carry out the installation work.