Panasonic CU-E12EKEB, CS-E9EKEB, CU-E9EKEB SERVICE MANUAL

Order No: MAC0510072C2

Air Conditioner

CS-E9EKEB CU-E9EKEB CS-E12EKEB CU-E12EKEB

CONTENTS

Page Page

1 Safety Precautions 3 2 Specification

2.1. CS-E9EKEB CU-E9EKEB

2.2. CS-E12EKEB CU-E12EKEB

3 Features

3.1. Super Air Purifying System with SUPER alleru-buster

3.2. Ion Freshener

3.3. Super Quiet

3.4. Powerful Heating And Top-class Energy Effciency

4 Location of controls and components

4.1. Indoor Unit

4.2. Outdoor Unit

4.3. Remote Control

5 Dimension

5.1. Indoor Unit & Remote Control

5.2. Outdoor Unit

6 Refrigeration Cycle Diagram 13 7 Block Diagram

8 Wiring Diagram

5 7

9 9 9 9

10 10 10

11 12

8.1. CS-C9EKEB CS-C12EKEB

8.2. CU-C9EKEB CU-C12EKEB

9 Printed Circuit Board

9.1. Indoor Unit

9.2. Outdoor Unit

10 Simplified Electronic Circuit Diagram

10.1. Indoor Unit

10.2. Outdoor Unit

11 Installati on Instructions

11.1. Select The Best Location

11.2. Indoor Unit

11.3. Outdoor Unit

14 15

15 16

17 19

21 22

23 24 27

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

12 Operation And Control 30

12.1. Basic Function

12.2. Protection Control

13 Servicing Mode

13.1. Auto Switch Operation

13.2. Indicator Panel

14 Troubleshooting Guide

14.1. Refrigeration Cycle System

30 35

37 37

14.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current

14.3. Breakdown Self Diagnosis Function

14.4. Error Codes Table

15 Disassem bly and Assembly Instructions

39 39 40

15.1. Indoor Electronic Controller and Control Board

15.2. Indoor Cross Flow Fan and Fan Motor

15.3. Outdoor Propeller Fan and Fan Motor

16 Technica l Data

16.1. CS-E9EKEB CU-E9EKEB

16.2. CS-E12EKEB CU-E12EKEB

16.3. Sensible Capacity Chart

17 Exploded View And Replacement Parts List

17.1. CS-E9EKEB CS-E12EKEB

17.2. CS-E9EKEB CS-E12EKEB

17.3. CU-E9EKEB CU-E12EKEB

17.4. CU-E9EKEB CU-E12EKEB

41 43 45

47 53 58

59 60 61 62

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

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.

• 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.

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:

This symbol denotes item that is PROHIBITED from doing.

• Carry out test running 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.

1. Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage, electrical shock or fire.

2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.

4. 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.

5. For electrical work, follow the local national wiring standard, regulation and the 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.

6. Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and 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.

7. 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 heat-up at connection point of terminal, fire or electrical shock.

8. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and injury.

9. Thickness of copper pipes used must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.

10. It is desirable that the amount of residual oil is less than 40 mg/10 m.

11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.

2. 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.

3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture.

4. Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700

20°F (370 10°C).

Pb free solder will tend to splash when heated too high (about 1100°F/600°C).

1. Selection of the installation location. Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

2. 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 shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries, permanent connection of this room air conditioner to the power supply is prohibited.

1. Power supply connection to the receptacle using a power plug. Use an approved 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 circuit breaker for the permanent

connection. It must be a double pole switch with a minimum 3.5 mm contact gap.

3. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite.

4. Installation work. It may need two people to carry out the installation work.

5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

2 Specification

2.1. CS-E9EKEB CU-E9EKEB

Unit CS-E9EKEB CU-E9EKEB

Performance Test Condition EUROVENT

Cooling Capacity kW

Heating Capacity kW

Moisture Removal l/h

Power Source (Phase, Voltage, Cycle) ø

Airflow Method OUTLET

Air Volume Lo m3/min (cfm) Cooling; 6.2 (220) —

Me m3/min (cfm) Cooling; 7.9 (280) —

Hi m3/min (cfm) Cooling; 9.6 (340) Cooling; 29.8 (1,050)

SHi m3/min (cfm) Cooling; 9.9 (350) —

kcal/h

Pint/h

SIDE VIEW TOP VIEW

INTAKE

Heating; 6.6 (230)

Heating; 8.6 (300)

Heating; 10.5 (370)

Heating; 10.8 (380)

2.60 (0.60 - 3.00)

2,240 (520 - 2,580)

3.60 (0.60 - 5.40)

3,100 (520 - 4,640)

1.6

3.4

Single

230

dB (A) Cooling; High 39, Low 26 Cooling; 46

Heating; High 40, Low 27 Heating; 47

Noise Level

Power level dB Cooling; High 50 Cooling; High 59

Heating; High 51 Heating; High 60

Electrical Data Input W Cooling; 590 (120 - 750)

Heating; 845 (115 - 1,360)

Running Current A Cooling; 2.9

Heating; 4.0

EER W/W (kcal/hw) Cooling; 4.41 (3.80) COP W/W (kcal/hw) Heating; 4.26 (3.67) Starting Current A 4.0

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Inner diameter mm 16 — Length m 0.65 —

inch inch

G ; Half Union 3/8”

L ; Half Union 1/4” G (gas side) ; 3/8”

L (liquid side) ; 1/4”

G ; 3-way valve 3/8”

L ; 2-way valve 1/4”

G (gas side) ; 3/8”

L (liquid side) ; 1/4”

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

Unit CS-E9EKEB CU-E9EKEB

Power Cord Length Number of core-wire

m 1.8

(1.5mm

)

Dimensions Height inch (mm) 11 - 1/32 (280) 21 - 1/4 (540)

Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)

Depth inch (mm) 7 - 7/32 (183) 11 - 3/8 (289) Net Weight lb (kg) 20 (9.0) 77 (35) Compressor Type — Hermetic Motor

Motor Type — Brushless (4-pole)

Rated Output W — 750 Fan Motor Type Cross-flow Fan Propeller Fan

Material ASG20k1 P.P

Motor Type Transistor (8-poles) Induction (8-poles)

Input W 44.3 61.3 Rate Output W 30 40

Fan Speed Lo (Cool/Heat) rpm 820/880 —

Me (Cool/Heat) rpm 1,050/1,140 — Hi (Cool/Heat) rpm 1,280/1,400 800/790 SHi (Cool/Heat) rpm 1,320/1,440 —

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2/15 2/24 FPI 21 17 Size (W × H × L) mm 610 × 315 × 25.4 718.4

689.8 Refrigerant Control Device — Capillary Tube Refrigeration Oil (cm3) — RB68A (400) Refrigerant (R410A) g (oz) — 930 (32.8) Thermostat Electronic Control — Protection Device — Electronic Control

Air Filter Material

Style

P.P.

Honeycomb

— —

× 504 × 36.4

—

Specifications are subjected to change without prior notice for further improvement.

•

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

2.2. CS-E12EKEB CU-E12EKEB

Unit CS-E12EKEB CU-E12EKEB

Performance Test Condition EUROVENT

Cooling Capacity kW

Heating Capacity kW

Moisture Removal l/h

Power Source (Phase, Voltage, Cycle) ø

Airflow Method OUTLET

Air Volume Lo m3/min (cfm) Cooling; 6.9 (240) —

Me m3/min (cfm) Cooling; 8.8 (310) —

Hi m3/min (cfm) Cooling; 10.7 (380) Cooling; 31.0 (1,090)

SHi m3/min (cfm) Cooling; 11.0 (390) —

kcal/h

Pint/h

SIDE VIEW TOP VIEW

INTAKE

Heating; 8.1 (290)

Heating; 9.7 (340)

Heating; 11.2 (400)

Heating; 11.6 (410)

3.50 (0.60 - 4.00)

3,010 (520 - 3,440)

4.80 (0.60 - 6.60)

4,130 (520 - 5,680)

2.0

4.2

Single

230

dB (A) Cooling; High 42, Low 29 Cooling; 48

Heating; High 42, Low 33 Heating; 50

Noise Level

Power level dB Cooling; High 53 Cooling; High 61

Heating; High 53 Heating; High 63

Electrical Data Input W Cooling; 920 (120 - 1,180)

Heating; 1,260 (115 - 1,850)

Running Current A Cooling; 4.3

Heating; 5.8

EER W/W (kcal/hw) Cooling; 3.80 (3.27) COP W/W (kcal/hw) Heating; 3.81 (3.28) Starting Current A 5.8

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 16 — Length m 0.65 —

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

1.8

(1.5mm

)

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

— —

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

Unit CS-E12EKEB CU-E12EKEB

Dimensions Height inch (mm) 11 - 1/32 (280) 21 - 1/4 (540)

Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)

Depth inch (mm) 7 - 7/32 (183) 11 - 3/8 (289) Net Weight lb (kg) 20 (9.0) 79 (36) Compressor Type — Hermetic Motor

Motor Type — Brushless (4-pole)

Rated Output W — 750 Fan Motor Type Cross-flow Fan Propeller Fan

Material ASG20k1 P.P

Motor Type Transistor (8-poles) Induction (8-poles)

Input W 44.3 65.9 Rate Output W 30 40

Fan Speed Lo (Cool/Heat) rpm 910/1,080 —

Me (Cool/Heat) rpm 1,165/1,290 — Hi (Cool/Heat) rpm 1,420/1,500 840 / 820 SHi (Cool/Heat) rpm 1,460/1,540 —

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2/15 2/24 FPI 21 17 Size (W × H × L) mm 610 × 315 × 25.4 718.4

Refrigerant Control Device — Capillary Tube Refrigeration Oil (cm3) — RB68A (400) Refrigerant (R410A) g (oz) — 970 (34.2) Thermostat Electronic Control — Protection Device — Electronic Control Air Filter Material

Style

P.P.

Honeycomb

689.8

× 504 × 36.4

—

Specifications are subjected to change without prior notice for further improvement.

•

3 Features

CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB

3.1. Super Air Purifying System with SUPER alleru-buster

3.1.1. Supersonic Air Purifying System

• The Supersonic Air Purifying System incorporated in the

indoor unit generates supersonic waves.

• The system works in combination with the filter to collects

dust and dirt in the air for faster, more efficient air purification.

3.1.2. SUPER alleru-buster filter

• The SUPER alleru-buster filter combines three effects in

one—anti-allergen, anti-virus, anti-bacteria protection—to keep room air clean and healthful.

3.2. Ion Freshener

• Around 20,000 negative ions/cc are generated to freshen the room. It’s like being next to a waterfall or in a forest.

3.3. Super Quiet

• The indoor unit operates at a whisper-quiet 26dB. You can also press the Quiet Mode button to lower the operating noise 3 dB. We’ve reduced the noise of the outdoor unit, too, with the e-scroll Compressor and 2-Wing Fan. You can run the air conditioner at night and enjoy a deeper, more comfortable sleep, and without bothering your neighbours.

3.4. Powerful Heating And Top-

class Energy Effciency