Panasonic CS-E15HKD, CS-E7HKEW, CU-E7HKE, CS-E9HKEW, CU-E9HKE Service Manual

...

Download

&

2.1. CS-E7HKEW CU-E7HKE -------------------------------5

2.2. CS-E9HKEW CU-E9HKE -------------------------------7

2.3. CS-E12HKEW CU-E12HKE ----------------------------9

2.4. CS-E15HKEW CU-E15HKE -------------------------- 11

2.5. Outdoor Unit: CU-2E15GBE--------------------------- 13

2.6. Outdoor Unit: 3E18EBE -------------------------------- 14

2.7. Outdoor Unit: CU-3E23CBPG CU4E27CBPG ------------------------------------------------ 15

3Features------------------------------------------------------------19 4 Location of Controls and Components------------------ 21

4.1. Indoor Unit ------------------------------------------------- 21

4.2. Outdoor Unit ----------------------------------------------- 21

4.3. Remote Control ------------------------------------------- 21

5 Dimensions ------------------------------------------------------- 22

5.1. Indoor Unit ------------------------------------------------- 22

5.2. Outdoor Unit ----------------------------------------------- 23

6 Refrigeration Cycle Diagram -------------------------------- 24

6.1. CS-E7HKEW CU-E7HKECS-E9HKEW CUE9HKECS-E12HKEW CU-E12HKE ---------------- 24

6.2. CS-E15HKEW CU-E15HKE -------------------------- 25

7 Block Diagram --------------------------------------------------- 26

7.1. CS-E7HKEW CU-E7HKECS-E9HKEW CUE9HKECS-E12HKEW CU-E12HKE ---------------- 26

7.2. CS-E15HKEW CU-E15HKE -------------------------- 27

8 Wiring Connection Diagram --------------------------------- 28

8.1. Indoor Unit ------------------------------------------------- 28

8.2. Outdoor Unit ----------------------------------------------- 29

9 Electronic Circuit Diagram-----------------------------------31

9.1. Indoor Unit ------------------------------------------------- 31

9.2. Outdoor Unit ----------------------------------------------- 32

10 Printed Circuit Board ------------------------------------------34

10.1. Indoor Unit ------------------------------------------------- 34

10.2. Outdoor Unit ----------------------------------------------- 36

11 Installation Instruction ---------------------------------------- 38

11.1. Select The Best Location ------------------------------ 38

11.2. Indoor/Outdoor Unit Installation Diagram ---------- 38

11.3. Indoor Unit ------------------------------------------------- 39

11.4. Outdoor Unit ----------------------------------------------- 42

12 Operation Control ---------------------------------------------- 45

12.1. Basic Function-------------------------------------------- 45

12.2. Indoor Fan Motor Operation -------------------------- 46

12.3. Outdoor Fan Motor Operation ------------------------ 47

12.4. Airflow Direction------------------------------------------ 47

12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode) ---------------------------------------------- 48

12.6. Quiet operation (Heating)------------------------------ 48

12.7. Powerful Mode Operation ----------------------------- 49

12.8. Timer Control --------------------------------------------- 49

12.9. Auto Restart Control ------------------------------------ 49

12.10. Indication Panel ------------------------------------------ 50

12.11. Patrol Operation------------------------------------------ 50

12.12. e-ion Operation------------------------------------------- 52

13 Protection Control---------------------------------------------- 55

13.1. Protection Control For All Operations -------------- 55

13.2. Protection Control For Cooling & Soft Dry Operation -------------------------------------------------- 57

13.3. Protection Control For Heating Operation --------- 58

14 Servicing Mode-------------------------------------------------- 59

14.1. Auto OFF/ON Button ----------------------------------- 59

14.2. Select Remote Control Transmission Code------- 59

14.3. Remote Control Button --------------------------------- 60

15 Troubleshooting Guide --------------------------------------- 61

15.1. Refrigeration Cycle System --------------------------- 61

15.2. Breakdown Self Diagnosis Function ---------------- 63

15.3. Error Codes Table --------------------------------------- 64

16 Disassembly and Assembly Instructions -------------- 66

16.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures------ 66

16.2. Outdoor Electronic Controller Removal Procedure-------------------------------------------------- 70

17 Technical Data --------------------------------------------------- 72

17.1. Operation Characteristics ----------------------------- 72

17.2. Sensible Capacity Chart ------------------------------- 88

18 Exploded View and Replacement Parts List----------- 89

18.1. Indoor Unit------------------------------------------------- 89

18.2. Outdoor Unit ---------------------------------------------- 91

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 PROHIBITTED from doing.

• 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.

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 instructions 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. This equipment is strongly recommended to install 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.

7. 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.

8. 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 or fire at connection point of terminal, fire or electrical shock.

9. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosive and injury.

10. 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.

11. 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 electric shock in case equipment breakdown or insulation breakdown.

12. 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.

13. Do not damage or use unspecified power supply cord. Otherwise it will cause fire or electric shock.

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

15. It is desirable that the amount of residual oil is less than 40 mg/10 m. Thickness of copper pipes used must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.

16. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping, setting the valves at open condition, a burst may occur and cause injury.

17. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire.

18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.

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

3. 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.

4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.

5. Select an installation location which is easy for maintenance.

6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please use a high temperature solder 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).

7. 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. i. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection to the

socket.

ii. 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.

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

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

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

2 Specifications

2.1. CS-E7HKEW CU-E7HKE

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Performance Test Condition EUROVENT

Capacity

O O

EER

Noise Level

Capacity

E A

COP

Noise Level

Moisture Removal

QLo

Air Volume

Refrigeration Control Device — Check Valve & Capillary Tube

Refrigeration Oil

Refrigerant (R410A) g (oz) — 790 (27.9)

Dimension

Net Weight kg (lbs) 9 (20) 33 (73)

Pipe Diameter

Standard Length m (ft) 7.5 (24.6)

Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)

Height Difference m (ft) 15 (49.2)

Additional Gas Amount g/m (oz/ft) 20 (0.2)

Refrigeration Charge Less m (ft) 7.5 (24.6)

Drain Hose

Compressor

SHi

Height mm (inch) 280 (11-1/32) 540 (21-9/32)

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

Depth mm (inch) 183 (7-7/32) 289 (11-13/32)

Gas mm (inch) 9.52 (3/8)

Liquid mm (inch) 6.35 (1/4)

Inner Diameter mm 16 —

Length mm 650 —

Type — Hermetic Motor

Motor Type — Brushless (6-pole)

Rated Output W — 650

kW 2.05 (0.70 ~ 2.40)

kCal/h 1760 (600 ~ 2060)

W/W 4.36 (4.12 ~ 4.14)

kCal/hW 3.74 (3.53 ~ 3.55)

dB (A) High 37, Low 24, QLo 20 High 45

Power level dB High 48, Low 35, QLo 31 58

kW 2.80 (0.70 ~ 4.00)

kCal/h 2410 (600 ~ 3440)

W/W 4.41 (4.38 ~ 3.92)

kCal/hW 3.80 (3.75 ~ 3.37)

dB (A) High 38, Low 25, QLo 22 High 46

Power level dB High 49, Low 36, QLo 33 59

l/h 1.3

pt/h 2.7

/min (ft3/min)

Cooling; 4.5 (160)

Heating; 5.25 (190)

Cooling; 5.35 (190)

Heating; 5.9 (210)

Cooling; 7.5 (270)

Heating; 8.45 (300)

Cooling; 10.2 (360) Cooling; 28.8 (1020)

Heating; 10.7 (380) Heating; 28.8 (1020)

Cooling; 10.6 (370)

Heating; 11.1 (390)

— RB68A or Freol Alpha68M (320)

—

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Type Cross-Flow Fan Propeller Fan

Material ASG20K1 PP

Motor Type Transistor (8-pole) Induction (6-pole)

Input Power W — 62

Fan

Heat Exchanger

Air Filter

Output Power W 30 25

QLo (Cool/Heat) rpm 680 / 780 —

Lo (Cool/Heat) rpm 780 / 850 —

Fan Speed

Fin Material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row x Stage x FPI 2 x 15 x 17 2 x 24 x 17

Size (W x H x L) mm 610 x 315 x 25.4

Material Polypropelene —

Type One-Touch —

Me (Cool/Heat) rpm 1010 / 1085 —

Hi (Cool/Heat) rpm 1240 / 1320 750 / -

SHi (Cool/Heat) rpm 1310 /1390 —

36.4 x 504 x 713

684

1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)

2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF D.B.), 6qC W.B. (42.8qF W.B.)

Item Unit

ø Single

Power Source (Phase, Voltage, Cycle)

Input Power W

Starting Current A 3.0

Running Current A

Maximum current A 4.8

Power Factor %

Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Power Cord

Thermostat Electronic Control

Protection Device Electronic Control

Number of core —

Length m —

V 230

Hz 50

Cooling; 470 (170 ~ 580)

Heating; 635 (160 ~ 1020)

Cooling; 2.2

Heating; 3.0

Cooling; 93

Heating; 92

Note

• Specifications are subject to change without notice for further improvement.

2.2. CS-E9HKEW CU-E9HKE

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Performance Test Condition EUROVENT

Capacity

O O

EER

Noise Level

Capacity

E A

COP

Noise Level

Moisture Removal

QLo

Air Volume

SHi

Refrigeration Control Device — Check Valve & Capillary Tube

Refrigeration Oil

Refrigerant (R410A) g (oz) — 965 (34.1)

Height mm (inch) 280 (11-1/32) 540 (21-9/32)

Dimension

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

Depth mm (inch) 183 (7-7/32) 289 (11-13/32)

Net Weight kg (lbs) 9 (20) 34 (75)

Pipe Diameter

Gas mm (inch) 9.52 (3/8)

Liquid mm (inch) 6.35 (1/4)

Standard Length m (ft) 7.5 (24.6)

Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)

Height Difference m (ft) 15 (49.2)

Additional Gas Amount g/m (oz/ft) 20 (0.2)

Refrigeration Charge Less m (ft) 7.5 (24.6)

Drain Hose

Inner Diameter mm 16 —

Length mm 650 —

Type — Hermetic Motor

Compressor

Motor Type — Brushless (6-pole)

Rated Output W — 700

kW 2.60 (0.80 ~ 3.00)

kCal/h 2240 (690 ~ 2580)

W/W 4.41 (4.57 ~ 4.00)

kCal/hW 3.80 (3.94 ~ 3.44)

dB (A) High 39, Low 25, QLo 20 High 46

Power level dB High 50, Low 36, QLo 31 59

kW 3.60 (0.80 ~ 5.00)

kCal/h 3100 (690 ~ 4300)

W/W 4.31 (4.85 ~ 3.73)

kCal/hW 3.71 (4.18 ~ 3.21)

dB (A) High 40, Low 27, QLo 24 High 47

Power level dB High 51, Low 38, QLo 35 60

l/h 1.6

pt/h 3.4

/min (ft3/min)

Cooling; 4.5 (160)

Heating; 6.1 (220)

Cooling; 5.5 (190)

Heating; 6.5 (230)

Cooling; 7.8 (280)

Heating; 8.8 (310)

Cooling; 10.4 (370) Cooling; 29.8 (1050)

Heating; 11.0 (390) Heating; 29.8 (1050)

Cooling; 10.95 (390)

Heating; 11.7 (410)

— RB68A or Freol Alpha68M (320)

—

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Type Cross-Flow Fan Propeller Fan

Material ASG20K1 PP

Motor Type Transistor (8-pole) Induction (6-pole)

Input Power W — 65

Fan

Heat Exchanger

Air Filter

Output Power W 30 25

QLo (Cool/Heat) rpm 720 / 890 —

Lo (Cool/Heat) rpm 830 / 940 —

Fan Speed

Fin Material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row x Stage x FPI 2 x 15 x 19 2 x 24 x 17

Size (W x H x L) mm 610 x 315 x 25.4

Material Polypropelene —

Type One-Touch —

Me (Cool/Heat) rpm 1070 / 1170 —

Hi (Cool/Heat) rpm 1310 / 1400 770 / -

SHi (Cool/Heat) rpm 1390 / 1490 —

36.4 x 504 x 713

684

1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)

2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF D.B.), 6qC W.B. (42.8qF W.B.)

Item Unit

ø Single

Power Source (Phase, Voltage, Cycle)

Input Power W

Starting Current A 3.9

Running Current A

Maximum current A 5.9

Power Factor %

Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Power Cord

Thermostat Electronic Control

Protection Device Electronic Control

Number of core —

Length m —

V 230

Hz 50

Cooling; 590 (175 ~ 750)

Heating; 835 (165 ~ 1340)

Cooling; 2.8

Heating; 3.9

Cooling; 92

Heating; 93

Note

• Specifications are subject to change without notice for further improvement.

2.3. CS-E12HKEW CU-E12HKE

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Performance Test Condition EUROVENT

Capacity

O O

EER

Noise Level

Capacity

E A

COP

Noise Level

Moisture Removal

QLo

Air Volume

SHi

Refrigeration Control Device — Check Valve & Capillary Tube

Refrigeration Oil

Refrigerant (R410A) g (oz) — 980 (34.6)

Height mm (inch) 280 (11-1/32) 540 (21-9/32)

Dimension

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

Depth mm (inch) 183 (7-7/32) 289 (11-13/32)

Net Weight kg (lbs) 9 (20) 34 (75)

Pipe Diameter

Gas mm (inch) 9.52 (3/8)

Liquid mm (inch) 6.35 (1/4)

Standard Length m (ft) 7.5 (24.6)

Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)

Height Difference m (ft) 15 (49.2)

Additional Gas Amount g/m (oz/ft) 20 (0.2)

Refrigeration Charge Less m (ft) 7.5 (24.6)

Drain Hose

Inner Diameter mm 16 —

Length mm 650 —

Type — Hermetic Motor

Compressor

Motor Type — Brushless (6-pole)

Rated Output W — 700

kW 3.50 (0.80 ~ 4.00)

kCal/h 3010 (690 ~ 3440)

W/W 3.68 (4.32 ~ 3.33)

kCal/hW 3.17 (3.73 ~ 2.87)

dB (A) High 42, Low 28, QLo 20 High 48

Power level dB High 53, Low 39, QLo 31 61

kW 4.80 (0.80 ~ 6.50)

kCal/h 4130 (690 ~ 5590)

W/W 3.75 (4.57 ~ 3.40)

kCal/hW 3.23 (3.94 ~ 2.93)

dB (A) High 42, Low 33, QLo 30 High 50

Power level dB High 53, Low 44, QLo 41 63

l/h 2.0

pt/h 4.2

/min (ft3/min)

Cooling; 4.6 (160)

Heating; 8.0 (280)

Cooling; 6.4 (230)

Heating; 8.5 (300)

Cooling; 8.75 (310)

Heating; 10.2 (360)

Cooling; 11.2 (400) Cooling; 31.0 (1090)

Heating; 11.7 (410) Heating; 31.0 (1090)

Cooling; 11.7 (410)

Heating; 12.1 (430)

— RB68A or Freol Alpha68M (320)

—

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Type Cross-Flow Fan Propeller Fan

Material ASG20K1 PP

Motor Type Transistor (8-pole) Induction (6-pole)

Input Power W — 70

Fan

Heat Exchanger

Air Filter

Output Power W 30 30

QLo (Cool/Heat) rpm 730 / 1090 —

Lo (Cool/Heat) rpm 920 / 1150 —

Fan Speed

Fin Material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row x Stage x FPI 2 x 15 x 21 2 x 24 x 17

Size (W x H x L) mm 610 x 315 x 25.4

Material Polypropelene —

Type One-Touch —

Me (Cool/Heat) rpm 1175 / 1325 —

Hi (Cool/Heat) rpm 1430 / 1500 830 / -

SHi (Cool/Heat) rpm 1500 / 1550 —

36.4 x 504 x 713

684

1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)

2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF D.B.), 6qC W.B. (42.8qF W.B.)

Item Unit

ø Single

Power Source (Phase, Voltage, Cycle)

Input Power W

Starting Current A 5.9

Running Current A

Maximum current A 8.8

Power Factor %

Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Power Cord

Thermostat Electronic Control

Protection Device Electronic Control

Number of core —

Length m —

V 230

Hz 50

Cooling; 950 (185 ~ 1200)

Heating; 1280 (175 ~ 1910)

Cooling; 4.4

Heating; 5.9

Cooling; 94

Heating; 94

Note

• Specifications are subject to change without notice for further improvement.

2.4. CS-E15HKEW CU-E15HKE

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Performance Test Condition EUROVENT

Capacity

O O L

EER

I N G

Noise Level

Capacity

E A T

COP

I N G

Noise Level

Moisture Removal

QLo

Air Volume

SHi

Refrigeration Control Device — Expansion Valve

Refrigeration Oil

Refrigerant (R410A) g (oz) — 1.06k (37.4)

Height mm (inch) 280 (11-1/32) 750 (29-17/32)

Dimension

Width mm (inch) 799 (31-15/32) 875 (34-15/32)

Depth mm (inch) 183 (7-7/32) 345 (13-19/32)

Net Weight kg (lbs) 9 (20) 48 (106)

Pipe Diameter

Gas mm (inch) 12.7 (1/2)

Liquid mm (inch) 6.35 (1/4)

Standard Length m (ft) 7.5 (24.6)

Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)

Height Difference m (ft) 15 (49.2)

Additional Gas Amount g/m (oz/ft) 20 (0.2)

Refrigeration Charge Less m (ft) 7.5 (24.6)

Drain Hose

Inner Diameter mm 12 —

Length mm 650 —

Type — Hermetic Motor

Compressor

Motor Type — Brushless (4-pole)

Rated Output W — 700

kW 4.40 (0.90 ~ 5.00)

BTU/h 15000 (3070 ~ 17100)

kCal/h 3780 (770 ~ 4300)

W/W 3.21 (4.19 ~ 3.13)

BTU/hW 10.9 (14.3 ~ 10.7)

dB (A) High 43, Low 32, QLo 29 High 46

Power level dB High 54, Low 43, QLo 40 59

kW 5.50 (0.90 ~ 7.10)

BTU/h 18800 (3070 ~ 24200)

kCal/h 4730 (770 ~ 6110)

W/W 3.50 (3.67 ~ 3.16)

BTU/hW 12.0 (12.5 ~ 10.8)

dB (A) High 43, Low 35, QLo 32 High 46

Power level dB High 54, Low 46, QLo 43 59

l/h 2.4

pt/h 5.1

/min (ft3/min)

Cooling; 5.7 (200)

Heating; 8.6 (300)

Cooling; 7.0 (250)

Heating; 9.3 (330)

Cooling; 9.4 (330)

Heating; 10.8 (380)

Cooling; 11.7 (410) Cooling; 48.5 (1710)

Heating; 12.1 (430) Heating; 46.8 (1650)

Cooling; 12.18 (430)

Heating; 12.2 (430)

— RB68A or Freol Alpha68M (400)

—

ITEM UNIT INDOOR UNIT OUTDOOR UNIT

Type Cross-Flow Fan Propeller Fan

Material ASG20K1 PP

Motor Type Transistor (8-pole) Transistor (8-pole)

Input Power W — —

Fan

Heat Exchanger

Air Filter

Output Power W 30 40

QLo (Cool/Heat) rpm 850 / 1160 —

Lo (Cool/Heat) rpm 990 / 1230 —

Fan Speed

Fin Material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row x Stage x FPI 2 x 15 x 21 1 x 28 x 18

Size (W x H x L) mm 610 x 315 x 25.4 22 x 711 x 835

Material Polypropelene —

Type One-Touch —

Me (Cool/Heat) rpm 1245 / 1390 —

Hi (Cool/Heat) rpm 1500 / 1550 660 / 640

SHi (Cool/Heat) rpm 1560 / 1570 —

1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)

2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF D.B.), 6qC W.B. (42.8qF W.B.)

Item Unit

ø Single

Power Source (Phase, Voltage, Cycle)

Input Power W

Starting Current A 7.1

Running Current A

Maximum current A 10.2

Power Factor %

Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Power Cord

Thermostat Electronic Control

Protection Device Electronic Control

Number of core —

Length m —

V 230

Hz 50

Cooling; 1.37k (215 ~ 1.60k)

Heating; 1.57k (245 ~ 2.25k)

Cooling; 6.3

Heating; 7.1

Cooling; 95

Heating; 96

Note

• Specifications are subject to change without notice for further improvement.

2.5. Outdoor Unit: CU-2E15GBE

2.6. Outdoor Unit: 3E18EBE

2.7. Outdoor Unit: CU-3E23CBPG CU-4E27CBPG

161718

3 Features

• Inverter Technology

- Wider output power range

- Energy saving

- Quick Cooling

- Quick Heating

- More precise temperature control

• E-ion Air Purifying System with Patrol Sensor

- Active e-ions are released to catch dust particles and bring them back the large positively charged filter

• Environment Protection

- Non-ozone depletion substances refrigerant (R410A)

• Long Installation Piping

- CS/CU-E7/9/12/15HK, long piping up to 15 meters

• Easy to use remote control

• Quality Improvement

- Random auto restart after power failure for safety restart operation

- Gas leakage protection

- Prevent compressor reverse cycle

- Inner protector to protect Compressor

- Noise prevention during soft dry operation

• Operation Improvement

- Quiet mode to reduce the indoor unit operating sound

- Powerful mode to reach the desired room temperature quickly

- 24-hour timer setting

• Serviceability Improvement

- Breakdown Self Diagnosis function

• Multi Split Combination Possibility:

- A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E15GBE, CU-2E18CBPG.

- A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E18EBE, CU-3E23CBPG.

- A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E27CBPG.

4 Location of Controls and Components

4.1. Indoor Unit

4.2. Outdoor Unit

4.3. Remote Control

5 Dimensions

5.1. Indoor Unit

5.2. Outdoor Unit

5.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

5.2.2. CU-E15HKE

6 Refrigeration Cycle Diagram

6.1. CS-E7HKEW CU-E7HKE CS-E9HKEW CU-E9HKE CS-E12HKEW CU-E12HKE

Model

E7HK, E9HK, E12HK 3/8” 1/4” 7.5 7.5 15 3 15 20

If piping length is over common length, additional refrigerant should be added as shown in the table.

Piping size Rated

Gas Liquid

Length

(m)

Common

Length

(m)

Max.

Elevation

(m)

Min. Piping

Length

(m)

Max. Piping

Length

(m)

Additional

Refrigerant

(g/m)

6.2. CS-E15HKEW CU-E15HKE

Model

E15HK 1/2” 1/4” 7.5 7.5 15 3 15 20

Piping size Rated

Gas Liquid

Length

(m)

Common

Length

(m)

Max.

Elevation

(m)

Min. Piping

Length

(m)

Max. Piping

Length

(m)

If piping length is over common length, additional refrigerant should be added as shown in the table.

Additional

Refrigerant

(g/m)

7 Block Diagram

7.1. CS-E7HKEW CU-E7HKE CS-E9HKEW CU-E9HKE CS-E12HKEW CU-E12HKE

7.2. CS-E15HKEW CU-E15HKE

8 Wiring Connection Diagram

8.1. Indoor Unit

8.2. Outdoor Unit

8.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

8.2.2. CU-E15HKE

9 Electronic Circuit Diagram

9.1. Indoor Unit

9.2. Outdoor Unit

9.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

9.2.2. CU-E15HKE

10 Printed Circuit Board

10.1. Indoor Unit

10.1.1. Main Printed Circuit Board

10.1.2. Power Printed Circuit Board

10.1.3. Indicator Printed Circuit Board

10.1.4. Patrol Printed Circuit Board

10.2. Outdoor Unit

10.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

10.2.2. CU-E15HKE

11 Installation Instruction

11.1. Select The Best Location

INDOOR UNIT

• Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.

• There should not be any heat source or steam near the unit.

• There should not be any obstacles blocking the air circulation.

• A place where air circulation in the room is good.

• A place where drainage can be easily done.

• A place where noise prevention is taken into consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.

• Recommended installation height for indoor unit shall be at least 2.5 m.

OUTDOOR UNIT

• If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.

• There should not be any animal or plant which could be affected by hot air discharged.

• Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.

• Do not place any obstacles which may cause a short circuit of the discharged air.

• If piping length is over the rated length, additional refrigerant should be added as shown in the table.

11.2. Indoor/Outdoor Unit Installation Diagram

Model

E7HKE, E9HKE,

E12HKE

E15HKE 1/2” 1/4” 7.5 15 3 15 20

Piping size

Gas Liquid

3/8” 1/4” 7.5 15 3 15 20

Rated

Length

(m)

Max

Elevation

(m)

Min.

Piping

Length

(m)

Piping

Length

(m)

Refrigerant

(g/m)

Additional

Max.

Example: For E7HKE If the unit is installed at 10 m distance, the quantity of additional

refrigerant should be 50g ...... (10 - 7.5) m x 20 g/m = 50 g

11.3. Indoor Unit

11.3.1. HOW TO FIX INSTALLATION PLATE

The mounting wall is strong and solid enough to prevent it from the vibration.

The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge to ceiling should more than 67 mm. From installation plate left edge to unit’s left side is 74 mm. From installation plate right edge to unit’s right is 94 mm.

: For left side piping, piping connection for liquid should be about

15 mm from this line.

: For left side piping, piping connection for gas should be about

45 mm from this line.

: For left side piping, piping connection cable should be about

800 mm from this line.

11.3.2. TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

3. Cut the sleeve until it extrudes about 15 mm from the wall.

Caution

When the wall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the connecting cable.

4. Finish by sealing the sleeve with putty or caulking compound at the final stage.

1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall, consider using anchor bolts.)

• Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge.

2. Drill the piping plate hole with ø70 mm hole-core drill.

• Line according to the left and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively.

• Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side.

11.3.3. INDOOR UNIT INSTALLATION

1. For the right rear piping

2. For the right and right bottom piping

3. For the embedded piping

(This can be used for left rear piping and left bottom piping also.)

11.3.4. CONNECT THE CABLE TO THE INDOOR UNIT

1. The inside and outside connecting cable can be connected without removing the front grille.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 u 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.

• Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.

• Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.

• Secure the cable onto the control board with the holder (clamper).

11.4. Outdoor Unit

11.4.1. INSTALL THE OUTDOOR UNIT

• After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).

2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

Model A B C D

E7HKE, E9HKE,

E12HKE

E15HKE 612.5 mm 131 mm 19 mm 383 mm

11.4.2. CONNECTING THE PIPING

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe (in case of using long piping).

Connect the piping

• Align the center of piping and sufficiently tighten the flare nut with fingers.

• Further tighten the flare nut with torque wrench in specified torque as stated in the table.

570 mm 105mm 18.5 mm 320 mm

Model

E7HKE, E9HKE, E12HKE 3/8” [42 N

E15HKE 1/2” [55 N

Do not over tighten, over tightening cause gas leakage.

Piping size (Torque)

Gas Liquid

m] 1/4” [18 NOm)

Connecting The Piping To Outdoor Unit

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.

CUTTING AND FLARING THE PIPING

1. Please cut using pipe cutter and then remove the burrs.

2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.

3. Please make flare after inserting the flare nut onto the copper pipes.

11.4.3. EVACUATION OF THE EQUIPMENT

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.

1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.

• Be sure to connect the end of the charging hose with the push pin to the service port.

2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor.

3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to

-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.

6. Tighten the service port caps of the 3-way valve at a torque of 18 N

7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal wrench (4 mm).

8. Mount valve caps onto the 2-way valve and the 3-way valve.

• Be sure to check for gas leakage.

m with a torque wrench.

CAUTION

• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step above take the following measure:

• If the leak stops when the piping connections are tightened further, continue working from step .

• If the leak does not stop when the connections are retightened, repair the location of leak.

• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.

11.4.4. CONNECT THE CABLE TO THE OUTDOOR UNIT

(FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT)

1. Remove the control board cover from the unit by loosening the screw.

2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm cord, type designation 245 IEC 57 or heavier cord.

3. Secure the cable onto the control board with the holder (clamper).

flexible

4. Cable connection to the power supply through knife switch (Disconnecting means).

• Connect the approved polychloroprene sheathed power supply cable (3 x 1.5 mm cord to the terminal board, and connect the other end of the cable to knife switch (Disconnecting means).

Note: Knife switch (Disconnecting means) should have minimum 3.5 mm contact gap.

• Secure the cable onto the control board with the holder (clamper).

), type designation 245 IEC 57 or heavier

11.4.5. PIPE INSULATION

1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.

2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

12 Operation Control

12.1. Basic Function

Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature.

12.1.1. Internal Setting Temperature

Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.

12.1.2. Cooling Operation

12.1.2.1. Thermostat control

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5qC.

• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point.

12.1.3. Soft Dry Operation

12.1.3.1. Thermostat control

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5qC.

• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point.

12.1.4. Heating Operation

12.1.4.1. Thermostat control

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0qC.

• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF point.

12.1.5. Automatic Operation

• This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake air temperature and outdoor air temperature.

• During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.

• Every 30 minutes, the indoor and outdoor temperature is judged. Based on remote control setting temperature, the value of T1 will increase up to 10qC, T2 will decrease by 3qC and T3 will decrease up to 8qC.

• The Auto Operation Mode shifting will take place whenever operation mode changed from Cool/Soft Dry to Heating or vice versa.

12.2. Indoor Fan Motor Operation

A. Basic Rotation Speed (rpm)

i. Manual Fan Speed [Cooling, Dry]

• Fan motor’s number of rotation is determined according to remote control setting.

Remote ControlOOOOO

Tab (rpm) SHi Me+ Me Me- Lo

[Heating]

• Fan motor’s number of rotation is determined according to remote control setting.

Remote ControlOOOOO

Tab (rpm) Hi Me+ Me Me- Lo

ii. Auto Fan Speed [Cooling, Dry]

• According to room temperature and setting temperature, indoor fan speed is determined automatically.

• The indoor fan will operate according to pattern below.

[Heating]

• According to indoor pipe temperature, automatic heating fan speed is determined as follows.

B. Feedback control

• Immediately after the fan motor started, feedback control is performed once every second.

• During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fan motor error is detected. Operation stops and cannot on back.

12.3. Outdoor Fan Motor Operation

Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.

12.4. Airflow Direction

1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).

2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

12.4.1. Vertical Airflow

Operation Mode Airflow Direction Vane Angle (q)

12345

Heating Auto with Heat Exchanger

Temperature

Manual 12 25 37 49 60

Cooling and Ion Auto 10 ~ 32

Manual 12 18 25 31 37

Soft Dry Auto 10 ~ 32

Manual 12 18 25 31 37

1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated above. For heating mode operation, the angle of the vane depands on the indoor heat exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane will shift to close position.

A Upward fix 0

B Downward fix 45

C Upward fix 0

D Downward fix 0

2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position.

12.4.2. Horizontal Airflow

• The horizontal airflow direction louvers can be adjusted manually by hand.

12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode)

A. Purpose

To provide quiet cooling operation compare to normal operation.

B. Control condition

a. Quiet operation start condition

• When “Quiet” button at remote control is pressed. Quiet LED illuminates.

b. Quiet operation stop condition

1. When one of the following conditions is satisfied, quiet operation stops: a. Powerful button is pressed. b. Stop by OFF/ON switch.

c. Timer “off” activates.

d. Quiet button is pressed again.

2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.

3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.

4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode.

5. During quiet operation, if timer “on” activates, quiet operation maintains.

6. After off, when on back, quiet operation is not memorised.

C. Control contents

1. Fan speed is changed from normal setting to quiet setting of respective fan speed.

This is to reduce sound of Hi, Me, Lo for 3dB (some models more than 3dB).

2. Fan speed for quiet operation is -1 step from setting fan speed.

12.6. Quiet operation (Heating)

A. Purpose

To provide quiet heating operation compare to normal operation.

B. Control condition

a. Quiet operation start condition

• When “Quiet” button at remote control is pressed. Quiet LED illuminates.

b. Quiet operation stop condition

1. When one of the following conditions is satisfied, quiet operation stops:

a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer “off” activates. d. Quiet button is pressed again.

2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.

3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.

4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, expect fan only mode.

5. During quiet operation, if timer “on” activates, quiet operation maintains.

6. After off, when on back, quiet operation is not memorised.

C. Control contents

a. Fan Speed manual

1. Fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB.

2. Fan speed for quiet operation is -1 step from setting fan speed.

b. Fan Speed Auto

1. Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.

12.7. Powerful Mode Operation

• When the powerful mode is selected, the internal setting temperature will shift lower up to 2qC (for Cooling/Soft Dry) or higher up to 3.5qC (for Heating) than remote control setting temperature for 20 minutes to achieve the setting temperature quickly.

12.8. Timer Control

12.8.1. ON Timer Control

• ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time.

• 60 minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time.

• From the above judgment, the decided operation will start operate earlier than the set time as shown below.

12.8.2. OFF Timer Control

OFF timer can be set using remote control, the unit with timer set will stop operate at set time.

12.9. Auto Restart Control

1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.

2. This type of control is not applicable during ON/OFF Timer setting.

12.10. Indication Panel

LED POWER TIMER QUIET POWERFUL e-ion PATROL SENSOR

Color Green Orange Orange Orange Blue Blue

Light ON Operation ON Quiet Setting ON Quiet Mode ON Powerful Mode ON e-ion ON PATROL ON

Light OFF Operation OFF Quiet Setting OFF Quiet Mode OFF Powerful Mode OFF e-ion OFF PATROL OFF

Note:

• If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling.

• If Timer LED is blinking, there is an abnormality operation occurs.

• If e-ion LED is blinking, there is an abnormality of e-ion occurs.

• If PATROL LED is blinking, there is a gas sensor error detection.

12.11. Patrol Operation

A. Purpose

To monitor air dirtiness level by using gas sensor and activates e-ion operation whenever air is dirty.

B. Control Condition

a. Patrol operation start condition

• When the unit operation is started with “OFF/ON” button.

• When the unit stops, “Patrol” button is pressed, Patrol individual operation will start.

• During cooling only operation, “Patrol” button is pressed.

b. Patrol operation stop condition

When any of the following condition is fulfilled:

• When “OFF/ON” button is pressed.

• During any operation with Patrol, “Patrol” button is pressed again.

• When “e-ion” button is pressed.

• When OFF Timer activates.

c. Patrol operation disable

• To disable the Patrol Operation during unit start (default) with “OFF/ON” button, press “Patrol” button and hold for 5 seconds, then release.

• To disable the Patrol Operation, press “Patrol” button and hold for 15 seconds, then release.

C. Control Content

a. Gas Sensor Control

• First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to level 2.

• After that, gas sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air.

• The air dirtiness level is monitored by comparing the current resistance value with maximum resistance value from time to time to get the Air Dirtiness Value.

• There are 3 air dirtiness levels, based on the Air Dirtiness Value:

- Air Dirtiness level 0: Clean

- Air Dirtiness level 1: Moderate

- Air Dirtiness level 2: Contaminated

• Dirtiness level sensitivity adjustment It is possible to change the gas sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted accordingly:

1. Press and release “SET” buttton.

2. Press “Timer increment” / “Timer decrement” button to select sensitivity. (Low Standard (Default) High)

3. Confirm setting by pressing “Timer Set” button. LCD returned to original display after 2 seconds.

4. LCD returned to original display if remote control does not operate for 30 seconds.

b. e-ion Control

• When dirtiness level is 1 or 2, e-ion operation starts.

• If dirtiness level improves from level 2 to level 1, the unit carries out level change after 60 seconds.

• When dirtiness level returns to level 0 continuously for 10 minutes or more, e-ion operation stops.

Dirtiness Level Shift

• For Auto Fan Speed, the fan speed increased based on dirtiness level:

c. Indoor Fan Control

• During any operation mode combines with Patrol operation, fan speed follows respective operation mode.

• During Patrol individual operation if e-ion starts, only Auto Fan Speed and no Powerful operation is allowed. Even if “Fan Speed” button is pressed, no signal is sent to air conditioner, and no change on LCD display.

• During Patrol individual operation if e-ion stops, Indoor Fan stop operation.

d. Airflow direction (Horizontal, Vertical) Control

• During any operation mode combines with Patrol operation, airflow direction follows respective operation mode.

• During Patrol individual operation if e-ion starts, only Auto Air Swing is allowed. Even if “Air Swing” button is pressed, no signal is sent to air conditioner, and no change on LCD display.

• During Patrol individual operation if e-ion stops, Airflow direction louver closed.

e. Indicator

• When Patrol operation starts, Patrol Sensor indicator ON.

• When e-ion operation starts based on dirtiness level, e-ion indicator ON.

f. Remote Control Receiving Sound

• Normal Operation

• Patrol Mode

• Stop

g. Timer Control

• When ON timer activates when unit stops, previous operation resumes without Patrol operation.

• When ON timer activates during any operation, no change and carry on current operation.

• When OFF timer activates during any operation, all operation stops.

h. Power failure

• During Patrol individual operation, if power failure occurs, after power resumes, Patrol individual operation resumes immediately.

• During combination operation, if power failure occurs, after power resumes combination operation resume immediately.

Patrol Mode

Stop

Normal Operation

Patrol

Beep

Long Beep

Beep

12.12. e-ion Operation

A. Purpose

This operation provides clean air by producing negative ions to attract dust captured at the positively charged e-ion filters.

B. Control Condition

a. e-ion operation start condition

• During unit running at any operation mode, if “e-ion” button is pressed, combination operation (operation mode + e-ion operation) starts.

• During unit is OFF, if “e-ion” button is pressed, e-ion individual operation starts.

b. e-ion operation stop condition

• When “OFF/ON” button is pressed to stop the operation.

• When “e-ion” button is pressed again.

• When “Patrol” button is pressed.

• When OFF Timer activates.

c. e-ion operation pause condition

• When indoor fan stop (during deice, odor cut control, thermostat off, etc.). e-ion operation resume after indoor fan restarts.

• When indoor intake temperature 40qC. e-ion operation resume after indoor intake temperature < 40qC continuously for 30 minutes.

C. Control Content

a. Indoor fan control

• During any operation mode combines with e-ion operation, fan speed follows respective operation mode.

• During e-ion individual operation - only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is pressed, no signal is sent to air conditioner, and no change on LCD display.

Auto Fan Speed for e-ion operation switches between HLo and CLo at pattern below:

b. Airflow direction control

• During any operation mode combines with e-ion operation, airflow direction follows respective operation mode.

• During e-ion individual operation, only Auto Air Swing is allowed. Even if Air Swing button is pressed, no signal is sent to air conditioner, and no change on LCD display.

c. Timer control

• When ON timer activates when unit stops, previous operation resumes without e-ion operation.

• When ON timer activates during any operation, no change and carry on current operation.

• When OFF timer activates during any operation, all operation stops.

d. Indicator

• When e-ion operation starts, e-ion indicator ON.

e. e-ion Check Mode

• To check if e-ion is malfunctioning, during e-ion operation press “e-ion” button for 15 seconds and release to enter e-ion Check Mode and supplies power to the e-ion Air Purifying System.

• If abnormal discharge is detected at filter (short-circuited) due to water or dust adhesion, etc., the e-ion indicator blinks immediately.

f. Power failure

• During e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumes immediately.

• During combination operation, if power failure occurs, after power resumes, combination operation resume immediately.

g. Error Detection Control

When e-ion indicator blink, it indicates error listed below: i. e-ion Air Purifying system main connector to PCB is open:

Judgement Method

• During e-ion operation (include during Patrol operation), e-ion Air Purifying system main connector to PCB is opened.

Troubleshooting Methods

• Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.

ii. Abnormal Discharge

Judgement Method

• During e-ion operation, when feedback voltage is -Lo (at microcontroller) is detected, it is judged abnormal discharge and stops power supplies to the e-ion Air Purifying system.

• The unit retries after 30 minutes and repeat for 24 times. (not applicable for e-ion Check Mode)

Troubleshooting Method

• Press “e-ion” button or “OFF/ON” button to stop the operation and check the e-ion Air Purifying system main connector to PCB.

• After that, press “e-ion” button again to confirm the e-ion indicator not blinking.

• The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.

Error Reset Method

• Press “OFF/ON” button to OFF the operation.

• Press AUTO OFF/ON button at indoor unit to OFF the operation.

• OFF Timer activates.

• Press “e-ion” button during e-ion individual mode.

• Power supply reset.

iii. e-ion breakdown

Judgement Method

• When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, due to PCB or filter’s high voltage power supply damage.

• Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.

Troubleshooting Method

• Press “e-ion” button or “OFF/ON” button to stop the operation.

• Change main circuit board or filter’s high voltage power supply.

• When lo-feedback voltage supplied to e-ion Air Purifying system during e-ion operation, e-ion indicator and Timer indicator stop blinking.

13 Protection Control

13.1. Protection Control For All Operations

13.1.1. Restart Control (Time Delay Safety Control)

• The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period.

• This control is not applicable if the power supply is cut off and on again.

• This phenomenon is to balance the pressure inside the refrigerant cycle.

13.1.2. 30 Seconds Forced Operation

• Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a normal operation although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON button at the remote control is permitted or the Auto OFF/ON button at indoor unit.

• The reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit.

13.1.3. Total Running Current Control

1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be decreased.

2. If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased.

3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes.

Model E7HK E9HK E12HK E15HK

Operation Mode X (A) Y (A) X (A) Y (A) X (A) Y (A) X (A) Y (A)

Cooling/Soft Dry (A) 3.95 15.0 4.54 15.0 6.86 15.0 7.52 15.0

Cooling/Soft Dry (B) 3.6 15.0 4.12 15.0 6.35 15.0 7.16 15.0

Heating 4.37 15.0 5.57 15.0 8.03 15.0 8.55 15.0

4. The first 30 minutes of cooling operation, (A) will be applied.

13.1.4. IPM (Power transistor) Prevention Control

A. Overheating Prevention Control

1. When the IPM temperature rises to 100qC, compressor operation will stop immediately.

2. Compressor operation restarts after 3 minutes the temperature decreases to 95qC.

B. DC Peak Current Control

1. When electric current to IPM exceeds set value of 18.5 A, the compressor will stop operate. Then, operation will restart after 3 minutes.

2. If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will restart after 2 minutes.

3. If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after 1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off.

13.1.5. Compressor Overheating Prevention Control

• Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.

• If compressor discharge temperature exceeds 110qC, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. (“F97” is indicated.)

13.1.6. Low Pressure Prevention Control (Gas Leakage Detection)

a. Control start conditions

• For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.

• During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 4qC.

• During Heating operations : Indoor piping temperature - indoor suction is under 5qC.

b. Control contents

• Compressor stops (and restart after 3 minutes).

• If the conditions above happen 2 times within 20 minutes, the unit will:

- Stop operation

- Timer LED blinks and “F91” indicated.

13.1.7. Compressor Tank Temperature Rise Protection Control

a. Control start conditions

• For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.

• During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 4qC. Indoor temperature and outdoor temperature is 30±5qC. Remote Control setting 16qC and Hi Fan Speed.

• During Heating operations: Indoor piping temperature - indoor suction is under 5qC. Indoor temperature and outdoor temperature is 20 ± 2qC. Remote control setting 30qC and Hi Fan Speed.

b. Control contents

• Compressor stops (and restart after 3 minutes)

• If the conditions above happen 2 times within 20 minutes, the unit will:

- Stop operation

- Timer LED blinks and “F91” indicated

13.1.8. Low Frequency Protection Control 1

• When the compressor operate at frequency lower than 24 Hz continued for 20 minutes, the operation frequency will be changed to 23 Hz for 2 minutes.

13.1.9. Low Frequency Protection Control 2

• When all the below conditions comply, the compressor frequency will change to lower frequency.

Temperature, T, for: Cooling/Soft Dry Heating

Indoor intake air (qC)

Outdoor air (qC)

Indoor heat exchanger (qC) T < 30

T < 15 or T 30

T < 16 or T 38 T < 4 or T 24

—

T 0

13.2. Protection Control For Cooling & Soft Dry Operation

13.2.1. Outdoor Air Temperature Control

• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.

• This control will begin 1 minute after the compressor starts.

• Compressor frequency will adjust base on outdoor air temperature.

13.2.2. Cooling Overload Control

• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)

• The compressor stop if outdoor pipe temperature exceeds 61qC

• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pressure rise protection)

13.2.3. Freeze Prevention Control

1. When indoor heat exchanger temperature is lower than 0qC continuously for 6 minutes, compressor will stop operating.

2. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 13qC.

3. At the same time, indoor fan speed will be higher than during its normal operation.

4. If indoor heat exchanger temperature is higher than 13qC for 5 minutes, the fan speed will return to its normal operation.

13.2.4. Dew Prevention Control 1

• To prevent dew formation at indoor unit discharge area.

• This control will be activated if:

- Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled.

- When Cooling or Dry mode is operated more than 20 minutes or more.

• This control stopped if:

- Compressor stopped.

- Remote control setting changed (fan speed / temperature).

- Outdoor air temperature and indoor intake temperature changed.

• Fan speed, angle of louver (vertical airflow angle) will be adjusted accordingly in this control.

- Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.

- The angle of horizontal louver will be changed as table below:

Operation Mode Airflow Direction Vane Angle (q)

12345

Cooling and e-ion Auto 22 ~ 30

Manual 22 24 26 28 30

13.2.5. Dew Prevention Control 2

• To prevent dew formation at indoor unit discharge area.

• This control starts if all conditions continue for 20 minutes:

- Operated with Cooling or Soft Dry Mode.

- Indoor intake temperature is between 25qC and 29qC.

- Outdoor air temperature is less than 30qC.

- Quiet Lo fan speed.

• This control stopped if:

- When receive air swing change signal from Remote Control.

• The horizontal louver will be fixed at 24q (regardless of Auto or Manual Airflow Direction Setting).

13.3. Protection Control For Heating Operation

13.3.1. Intake Air Temperature Control

Compressor will operate at Max freq. if either one of the below conditions occur:

1. When the indoor intake air temperature is 30qC or above.

13.3.2. Outdoor Air Temperature Control

• The Max current value is regulated when the outdoor air temperature rise above 16qC in order to avoid compressor overloading.

13.3.3. Overload Protection Control

• The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below.

• If the heat exchanger temperature exceeds 60qC, compressor will stop.

13.3.4. Low Temperature Compressor Oil Return Control

• In heating operation, if the outdoor temperature falls below -10qC when compressor starts, the compressor frequency will be regulated up to 600 seconds.

13.3.5. Cold Draught Operation

• When indoor pipe temperature is low, cold draught operation start where indoor fan speed will be reduced.

13.3.6. Deice Operation

• When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks.

14 Servicing Mode

14.1. Auto OFF/ON Button

1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction.

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds. A “beep” sound will heard at the fifth seconds, in order to identify the starting of Test Run operation (Forced cooling operation). Within 5 minutes after Forced cooling operation start, the Auto OFF/ON button is pressed for more than 5 seconds. A 2 “beep” sounds will heard at the fifth seconds, in order to identify the starting of Forced heating operation.

The Auto OFF/ON button may be used together with remote control to set / change the advance setting of air conditioner operation.

3. REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 11 seconds (3 “beep” sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition) and press any button at remote control to transmit and store the desired transmission code to the EEPROM.

For transmission code selection explanation, please refer to “Select Remote Control Transmission Code”.

4. REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset” button and then press “Check” button at remote control.

Press “Auto OFF/ON button” to toggle remote control receiving sound.

- Short “beep”: Turn OFF remote control receiving sound.

- Long “beep”: Turn ON remote control receiving sound.

After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is restarted.

14.2. Select Remote Control Transmission Code

• There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit will only operate when received signal with same transmission code from remote control. This could prevent signal interference when there are 2 or more indoor units installed nearby together.

• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.

Remote Control Printed Circuit Board

Jumper A (J-A) Jumper B (J-B) Remote Control No.

Short Open A (Default)

Open Open B

Short Short C

Open Short D

• During Remote Control Number Switch Mode, press any button at remote control to transmit and store the transmission code to the EEPROM.

14.3. Remote Control Button

14.3.1. SET BUTTON

• To check current remote control transmission code

- Press for more than 10 seconds.

• To change the air quality sensor sensitivity

- Press and release with pointer.

- Press the Timer Decrement button to select sensitivity:

1. Low Sensitivity

2. Standard (Default)

3. Hi Sensitivity

- Confirm setting by pressing Timer Set button, a “Beep” sound will be heard. LCD returns to original display after 2 seconds.

- LCD returns to original display if remote control does not operate for 30 seconds.

14.3.2. CLOCK BUTTON

• To change the remote control’s time format

- Press for more than 5 seconds.

14.3.3. RESET (RC)

• To clear and restore the remote control setting to factory default

- Press once to clear the memory.

14.3.4. RESET (AC)

• To restore the unit’s setting to factory default

- Press once to restore the unit’s setting.

14.3.5. TIMER

• To change indoor unit indicator’s LED intensity

- Press continuously for 5 seconds.

14.3.6. TIMER

• To change remote control display from Degree Celsius (qC) to Degree Fahrenheit (qF).

- Press continuously for 10 seconds.

15 Troubleshooting Guide

15.1. Refrigeration Cycle System

In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.

15.1.1. Relationship between the condition of the air conditioner and pressure and electric current

Cooling Mode Heating Mode

Condition of the air

conditioner

Insufficient refrigerant

(gas leakage)

Clogged capillary tube

or Strainer

Short circuit in the

indoor unit

Heat radiation deficiency

of the outdoor unit

Inefficient compression

Low Pressure High Pressure

Electric current

during operating

Low Pressure High Pressure

Electric current

during operating

• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

15.2. Breakdown Self Diagnosis Function

15.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code)

• Once abnormality has occurred during operation, the unit will stop its operation, and Timer LED blinks.

• Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will light up again.

• In operation after breakdown repair, the Timer LED will no more blink. The last error code (abnormality) will be stored in IC memory.

• To make a diagnosis

1. Timer LED start to blink and the unit automatically stops the operation.

2. Press the CHECK button on the remote controller contiguously for 5 seconds.

3. “- -” will be displayed on the remote controller display. Note: Display only for “- -”. (No transmitting signal, no receiving sound and no Power LED blinking.)

4. Press the “TIMER” or button on the remote controller. The code “H00” (no abnormality) will be displayed and signal will be transmitted to the main unit.

5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code signal to the main unit.

6. When the latest abnormality code on the main unit and code transmitted from the remote controller are matched, power LED will light up for 30 seconds and a beep sound (continuously for 4 seconds) will be heard. If no codes are matched, power LED will light up for 0.5 seconds and no sound will be heard.

7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds.

8. The LED will be off if the unit is turned off or the RESET button on the main unit is pressed.

• To display memorized error (Protective operation)

status

1. Turn power on.

2. Press the CHECK button on the remote controller contiguously for 5 seconds.

3. “- -” will be displayed on the remote controller display. Note: Display only for “- -”. (No transmitting signal, no receiving sound and no Power LED blinking.)

4. Press the “TIMER” or button on the remote controller. The code “H00” (no abnormality) will be displayed and signal will be transmitted to the main unit. The power LED lights up. If no abnormality is stored in the memory, three beeps sound will be heard.

5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code signal to the main unit.

7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds.

8. The same diagnosis can be repeated by turning power on again.

• To clear memorized error (Protective operation) status

after repair:

1. Turn power on (in standby condition).

2. Press the AUTO button for 5 seconds (A beep receiving sound) on the main unit to operate the unit at Forced Cooling Operation modes.

3. Press the CHECK button on the remote controller for about 1 second with a pointed object to transmit signal to main unit. A beep sound is heard from main unit and the data is cleared.

• Temporary Operation (Depending on breakdown status)

1. Press the AUTO button (A beep receiving sound) on the main unit to operate the unit. (Remote control will become possible.)

2. The unit can temporarily be used until repaired.

Error Code Operation Temporary items

H23 Cooling

H27, H28 Cooling, Heating

Emergency Operation

with limited power

15.3. Error Codes Table

15.3.1. CU-E7HKE CU-E9HKE CU-E12HKE

Diagnosis

display

H00 No abnormality detected — Normal operation

H11 Indoor / outdoor abnormal

H12 Connection capability rank abnormal — — —

H14 Indoor intake air temperature sensor

H15 Outdoor compressor temperature

H16 Outdoor Current Transformer open

H19 Indoor fan motor merchanism lock 7 times occurance

H23 Indoor heat exchanger temperature

H25 E-Ion breakdown — — • Indoor PCB

H27 Outdoor air temperature sensor

H28 Outdoor heat exchanger temperature

H33 Indoor/Outdoor wrong connection — — • Indoor/Outdoor supply voltage

H38 Indoor/outdoor mismatch (brand code) — — —

H58 Abnormal gas sensor Continue for 6 hours — • Gas sensor

H98 Indoor high pressure protection — — • Air filter dirty

H99 Indoor heat exchanger anti-freezing

F11 Cooling / Heating cycle changeover

F90 PFC control 4 times occurance

F91 Refrigeration cycle abnormal 2 times occurance

F93 Outdoor compressor abnormal

F95 Cool high pressure protection 4 times occurance

F96 IPM (power transistor) overheating

F97 Outdoor compressor overheating

F98 Total running current protection 3 times occurance

F99 Outdoor Direct Current (DC) peak

Abnormality / Protection control

communication

abnormality

sensor abnormality

circuit

sensor abnormality

abnormality

sensor abnormality

protection

abnormality

revolution

protection

detection

Abnormality

Judgement

> 1 min after starting operation

Continue for 5 sec. — • Intake air temperature sensor

Continue for 5 sec. — • Compressor temperature sensor

— — • Outdoor PCB

continuously.

Continue for 5 sec. O

Continue for 5 sec. O • Outdoor temperature sensor

Continue for 5 sec. O • Outdoor heat exchanger

— — • Insufficient refrigerant

4 times occurance within 30 minutes

within 20 minutes

4 times occurance within 20 minutes

within 20 minutes

— — • Excess refrigerant

4 times occurance within 20 minutes

within 20 minutes

7 times occurance continuously

Emergency

operation

Indoor fan operation only

— • Indoor PCB

(Cooling only)

— • 4-way valve

— • Voltage at PFC

— • No refrigerant

— • Outdoor compressor

— • Outdoor refrigerant circuit

— • Insufficient refrigerant

— • Excess refrigerant

— • Outdoor PCB

Primary location to verify

• Internal / external cable connections

• Indoor / Outdoor PCB

(detective or disconnected)

• IPM (Power transistor) module

• Fan motor

• Heat exchanger temperature sensor (defective or disconnected)

• E-Ion PCB

(defective or disconnected)

temperature sensor (defective or disconnected)

(defective or disconnected)

• Air circulation short circuit

• Air filter dirty

• V-coil

(3-way valve is closed)

• Improper heat radiation

• IPM (Power transistor)

• Compressor

• Improper heat radiation

• IPM (Power transistor)

• Compressor

Note: “O” - Frequency measured and fan speed fixed.

The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the “CHECK” button at Remote Control. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is

changed from one “beep” to four “beep” sounds.

15.3.2. CU-E15HKE

Diagnosis

display

H00 No abnormality detected — Normal operation —

H11 Indoor / outdoor abnormal

H12 Connection capability rank abnormal — — —

H14 Indoor intake air temperature sensor

H15 Outdoor compressor temperature sensor

H16 Outdoor Current Transformer open

H19 Indoor fan motor merchanism lock — — • Indoor PCB

H23 Indoor heat exchanger temperature

H25 E-Ion breakdown — — • Indoor PCB

H27 Outdoor air temperature sensor

H28 Outdoor heat exchanger temperature

H30 Discharge temperature sensor

H33 Indoor/Outdoor wrong connection — — • Indoor/Outdoor supply voltage

H38 Indoor/Outdoor mismatch (brand code) — — —

H58 Abnormal gas sensor Continue for 6 hours — • Gas sensor

H97 Outdoor Fan Motor lock abnormality — — • Outdoor PCB

H98 Indoor high pressure protection — — • Air filter dirty

H99 Indoor heat exchanger anti-freezing pro-

F11 Cooling / Heating cycle changeover

F90 PFC control 4 times occurance

F91 Refrigeration cycle abnormality 7 times occurance

F93 Outdoor compressor abnormal revolution 4 times occurance

F95 Cool high pressure protection 4 times occurance

F96 IPM (power transistor) overheating

F97 Outdoor compressor overheating

F98 Total running current protection 3 times occurance

F99 Outdoor Direct Current (DC) peak

Abnormality / Protection control

communication

abnormality

circuit

sensor abnormality

abnormality

sensor abnormality

abnormality

tection

abnormality

protection

detection

Abnormality

Judgement

> 1 min after starting operation

Continue for 5 sec. — • Intake air temperature sensor

Continue for 5 sec. — • Compressor temperature sensor

— — • Outdoor PCB

Continue for 5 sec. O

Continue for 5 sec. O • Outdoor temperature sensor (defective

Continue for 5 sec. O • Outdoor heat exchanger temperature

Continue for 5 sec. — • Discharge temperature sensor

— — • Insufficient refrigerant

4 times occurance within 30 minutes

within 10 minutes

continuously

within 20 minutes

— — • Excess refrigerant

4 times occurance within 20 minutes

within 20 minutes

7 times occurance continuously

Emergency

operation

Indoor fan operation only

(Cooling only)

— • 4-way valve

— • Voltage at PFC

— • No refrigerant

— • Outdoor compressor

— • Outdoor refrigerant circuit

— • Insufficient refrigerant

— • Excess refrigerant

— • Outdoor PCB

Primary location to verify

• Internal / external cable connections

• Indoor / Outdoor PCB

(defective or disconnected)

• IPM (Power transistor) module

• Fan motor

• Heat exchanger temperature sensor (defective or disconnected)

• E-Ion PCB

or disconnected)

sensor (defective or disconnected)

(defective or disconnected)

• Outdoor Fan Motor

• Air circulation short circuit

• Air filter dirty

• V-coil

(3-way valve is closed)

• Improper heat radiation

• IPM (Power transistor)

• Compressor

• Improper heat radiation

• IPM (Power transistor)

• Compressor

Note: “O” - Frequency measured and fan speed fixed.

16 Disassembly and Assembly Instructions

High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks.

16.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures

16.1.1. To remove front grille

16.1.2. To remove power electronic controller

16.1.3. To remove discharge grille

16.1.4. To remove control board

16.1.5. To remove cross flow fan and indoor fan motor

16.2. Outdoor Electronic Controller Removal Procedure

16.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

Caution! When handling electronic controller, be careful of electrostatic discharge.

1. Remove the 3 screws of the Top Panel.

Fig. 1

2. Remove the 6 screws of the Front Panel.

5. Remove the Control Board as follows:

Fig. 4

Fig. 2

3. Remove the screw of the Terminal Board Cover.

4. Remove the Top Cover of the Control Board by 4 hooks.

Fig. 3

Fig. 5

Fig. 6

16.2.2. CU-E15HKE

1. Remove the 4 screws of the Top Panel.

Fig. 1

2. Remove the 10 screws of the Front Panel.

4. Remove the Control Board.

Fig. 4

5. Remove the 8 screws of the Electronic Controller.

Fig. 2

3. Remove the Top Cover of the Electronic Controller.

Fig. 3

Fig. 5

Caution! When handling electronic controller, be careful of electrostatic discharge.

17 Technical Data

17.1. Operation Characteristics

17.1.1. CS-E7HKEW CU-E7HKE

737475

17.1.2. CS-E9HKEW CU-E9HKE

777879

17.1.3. CS-E12HKEW CU-E12HKE

818283

17.1.4. CS-E15HKEW CU-E15HKE

858687

17.2. Sensible Capacity Chart

O CS-E7HKEW CU-E7HKE

230V Outdoor Temp. (qC)

Indoor wet bulb temp.

17.0qC 2.03 1.54 0.43 1.90 1.48 0.46 1.77 1.42 0.50 1.61 1.35 0.53

19.0qC 2.05 0.47

19.5qC 2.23 1.61 0.44 2.09 1.55 0.47 1.94 1.49 0.50 1.77 1.42 0.54

22.0qC 2.43 1.67 0.45 2.27 1.61 0.48 2.12 1.55 0.51 1.92 1.48 0.55

TCSHCIPTCSHCIPTCSHCIPTCSHCIP

O CS-E9HKEW CU-E9HKE

230V Outdoor Temp. (qC)

Indoor wet bulb temp.

17.0qC 2.58 1.96 0.54 2.41 1.88 0.58 2.24 1.80 0.62 2.04 1.71 0.67

19.0qC 2.60 0.59

19.5qC 2.83 2.05 0.55 2.65 1.97 0.59 2.46 1.89 0.63 2.24 1.80 0.68

22.0qC 3.09 2.12 0.56 2.88 2.04 0.60 2.68 1.97 0.64 2.44 1.88 0.70

TCSHCIPTCSHCIPTCSHCIPTCSHCIP

30 35 40 46

O CS-E12HKEW CU-E12HKE

230V Outdoor Temp. (qC)

Indoor wet bulb temp.

17.0qC 3.47 2.63 0.87 3.24 2.52 0.94 3.02 2.43 1.00 2.74 2.30 1.08

19.0qC 3.50 0.95

19.5qC 3.81 2.76 0.89 3.56 2.65 0.95 3.31 2.55 1.02 3.01 2.43 1.10

22.0qC 4.15 2.86 0.90 3.88 2.75 0.97 3.61 2.65 1.04 3.28 2.53 1.12

TCSHCIPTCSHCIPTCSHCIPTCSHCIP

O CS-E15HKEW CU-E15HKE

230V Outdoor Temp. (qC)

Indoor wet bulb temp.

17.0qC 4.36 3.31 1.25 4.08 3.17 1.35 3.79 3.05 1.44 3.45 2.90 1.56

19.0qC 4.40 1.37

19.5qC 4.79 3.46 1.28 4.48 3.33 1.38 4.17 3.20 1.47 3.79 3.05 1.59

22.0qC 5.22 3.59 1.30 4.88 3.45 1.40 4.54 3.33 1.50 4.13 3.18 1.62

Total Cooling Capacity (kW)

Sensible Heat Capacity (kW)

SHC

Input Power (kW)

Indoor 27qC/19qC Outdoor 35qC/24qC

TCSHCIPTCSHCIPTCSHCIPTCSHCIP

30 35 40 46

18 Exploded View and Replacement Parts List

18.1. Indoor Unit

Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.

REF.

NO.

1 CHASSY COMPLETE 1 CWD50C1572 mmm

2 FAN MOTOR 1 ARW61G8P30AC mmmO

3 CROSS FLOW FAN COMPLETE 1 CWH02C1045 mmm

4 BEARING ASSY 1 CWH64K007 mmm

5 SCREW - CROSS FLOW FAN 1 CWH551146 mmm

6 EVAPORATOR 1 CWB30C2484 CWB30C2386 CWB30C2388 CWB30C2387

7 FLARE NUT (1/4”) 1 CWT251030 mmm

8 FLARE NUT (3/8”) (1/2”) 1 CWT251031 mmCWT251032

9 CLIP FOR SENSOR 1 CWH32143 mmm

10 DISCHARGE GRILLE COMPLETE 1 CWE20C2621 mmm

11 VERTICAL VANE 12 CWE241157 mmm

12 CONNECTING BAR 1 CWE261092 mmm

13 CONNECTING BAR 2 CWE261071 mmm

14 CONNECTING BAR 1 CWE261091 mmm

15 AIR SWING MOTOR 1 CWA981091 mmmO

17 CAP - DRAIN TRAY 1 CWH521096 mmm

18 HORIZONTAL VANE COMPLETE 1 CWE24C1176 mmm

19 BACK COVER CHASSIS 1 CWD932454 mmm

20 CONTROL BOARD CASING 1 CWH102321 mmm

21 TERMINAL BOARD COMPLETE 1 CWA28C2305 mmmO

23 ELECTRONIC CONTROLLER - MAIN 1 CWA73C2957 CWA73C3018 CWA73C3019 CWA73C3020 O

24 ELECTRONIC CONTROLLER - POWER 1 CWA745131 mmmO

25 SENSOR COMPLETE 1 CWA50C2122 mmmO

26 CONTROL BOARD FRONT COVER 1 CWH131207 mmm

27 INDICATOR COMPLETE 1 CWE39C1168 mmmO

28 INDICATOR HOLDER 1 CWD932744 mmm

29 INDICATOR HOLDER 1 CWD932745 mmm

30 CONTROL BOARD FRONT COVER CO. 1 CWH13C1171 mmm

31 REMOTE CONTROL COMPLETE 1 CWA75C3177 mmmO

32 FRONT GRILLE COMPLETE 1 CWE11C3896 mmmO

33 INTAKE GRILLE COMPLETE 1 CWE22C1415 mmm

34 GRILLE DOOR 1 CWE14C1010 mmm

35 E-ION FILTER 2 CWD00K1004 mmm

36 SCREW - FRONT GRILLE 2 XTT4+16CFJ mmm

37 CAP - FRONT GRILLE 2 CWH521109 mmm

38 DRAIN HOSE 1 CWH851063 mmm

39 INSTALLATION PLATE 1 CWH361067 mmm

40 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C067 mmm

41 FULCRUM 1 CWH621049 mmm

42 E-ION AIR PURIFYING SYSTEM 1 CWH14C5332 mmmO

43 ION - GENERATOR 1 CWH94C0014 mmmO

44 OPERATION INSTRUCTIONS 1 CWF565854 mmCWF565858

PART NAME & DESCRIPTION QTY. CS-E7HKEW CS-E9HKEW CS-E12HKEW CS-E15HKEW REMARKS

INSTALLATION INSTRUCTIONS (ENG., ESP., POR., GRE.)

INSTALLATION INSTRUCTIONS (NED., FRA., ITA., DEU.)

1 CWF613365

1 CWF613366 mmCWF613369

mmCWF613368

(NOTE)

• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

• “O” marked parts are recommended to be kept in stock.

18.2. Outdoor Unit

18.2.1. CU-E7HKE CU-E9HKE CU-E12HKE

Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.

REF. NO. PART NAME & DESCRIPTION QTY. CU-E7HKE CU-E9HKE CU-E12HKE REMARKS

1 CHASSY ASS’Y 1 CWD50K2073 mm

2 SOUND PROOF MATERIAL 1 CWG302447 — —

3 FAN MOTOR BRACKET 1 CWD541030 mm

4 SCREW - FAN MOTOR BRACKET 2 CWH551217 mm

5 FAN MOTOR 1 CWA951536 CWA951553 CWA951542 O

6 SCREW - FAN MOTOR MOUNT 3 CWH55252J mm

7 PROPELLER FAN ASS’Y 1 CWH03K1010 mm

8 NUT - PROPELLER FAN 1 CWH56053J mm

9 COMPRESSOR 1 5RS092XCD01 5RS102XBC01 m O

10 ANTI - VIBRATION BUSHING 3 CWH50077 mm

11 NUT - COMPRESSOR MOUNT 3 CWH56000J mm

12 CONDENSER 1 CWB32C2444 CWB32C2446 CWB32C2419

13 TUBE ASS’Y CO. (CAP. / CHK VALVE) 1 CWT01C4051 CWT01C4201 CWT01C4202

15 HOLDER COUPLING 1 CWH351023 mm

16 2-WAYS VALVE (LIQUID) 1 CWB021301 mmO

17 3-WAYS VALVE (GAS) 1 CWB011374 mmO

19 REACTOR 1 G0C193J00003 m G0C193J00004 O

20 TERMINAL COVER 1 CWH171039A mm

21 NUT - TERMINAL COVER 1 CWH7080300J mm

22 SOUND PROOF BOARD 1 CWH151172 mm

23A SOUND PROOF MATERIAL 1 CWG302443 CWG302292 m

23B SOUND PROOF MATERIAL 1 — CWG302293 m

24 SENSOR COMPLETE 1 CWA50C2205 mmO

25 CONTROL BOARD COVER 1 CWH131264 mm

26 ELECTRONIC CONTROLLER - MAIN 1 CWA73C3095R CWA73C3096R CWA73C3097R O

27 TERMINAL BOARD ASS’Y 1 CWA28K1110J mmO

28 CABINET SIDE PLATE CO. 1 CWE04C1116 mm

29 SENSOR COMPLETE 1 CWA50C2391 mmO

30 CABINET SIDE PLATE 1 CWE041248A mm

31 CABINET FRONT PLATE CO. 1 CWE06C1039 mm

32 CABINET TOP PLATE 1 CWE031014A mm

33 PLATE - C. B. COVER 1 CWH131301 mm

34 CONTROL BOARD COVER CO. 1 CWH13C1064 mm

35 HANDLE 1 CWE161010 mm

38 4-WAYS VALVE 1 CWB001037J mmO

39 V - COIL COMPLETE 1 CWA43C2143J mmO

40 WIRE NET 1 CWD041111A mm

41 L - TUBE 1 CWH5850080 mm

42 PACKING - L. TUBE 1 CWB81012 mm

47 HOLDER SENSOR 1 CWH321023 mm

(NOTE)

• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

• “O” marked parts are recommended to be kept in stock.

18.2.2. CU-E15HKE

Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.

REF. NO. DESCRIPTION & NAME QTY. CU-E15HKE REMARKS

1 CHASSY ASS’Y 1 CWD50K2085

2 ANTI-VIBRATION BUSHING 3 CWH50077

3 COMPRESSOR 1 5CS130XAD04 O

4 NUT-COMPRESSOR MOUNT 3 CWH56000J

5 SOUND PROOF MATERIAL 1 CWG302302

6 FAN MOTOR BRACKET 1 CWD541084

7 FAN MOTOR 1 CWA981166J O

8 SCREW - FAN MOTOR BRACKET 2 CWH551198

9 SCREW - FAN MOTOR MOUNT 3 CWH551217

10 PROPELLER FAN ASSY 1 CWH03K1016

11 NUT - PROPELLER FAN 1 CWH56053J

12 CONDENSER 1 CWB32C2449

14 TUBE ASS’Y COMPLETE 1 CWT023679 O

15 4 WAYS VALVE 1 CWB001026J

18 HOLDER - COUPLING 1 CWH351056

19 3 WAYS VALVE (GAS) 1 CWB011361 O

20 2 WAYS VALVE (LIQUID) 1 CWB021292 O

22 SOUND PROOF BOARD 1 CWH151050

23 TERMINAL COVER 1 CWH171039A

24 NUT-TERMINAL COVER 1 CWH7080300J

25 SENSOR COMPLETE (COMP. TOP) 1 CWA50C2185

27 V-COIL COMPLETE (4 - WAYS VALVE) 1 CWA43C2168J

28 V-COIL COMPLETE (EXPAND VALVE) 1 CWA43C2058J

29 SENSOR COMPLETE (COMP. DISC.) 1 CWA50C2180

30 SENSOR COMPLETE 1 CWA50C2181

31 REACTOR 1 CWA421069

32 CONTROL BOARD CASING (SIDE) 1 CWH102273

33 TERMINAL BOARD ASSY 1 CWA28K1110J

34 FUSE HOLDERS 1 K3GB1PH00016

35 FUSE 1 K5D303BBA002

37 CONTROL BOARD CASING (BOTTOM) 1 CWH102282

38 ELECTRONIC CONTROLLER - MAIN 1 CWA73C3141R O

40 CONTROL BOARD COVER (TOP) 1 CWH131167

41 CABINET SIDE PLATE (LEFT) 1 CWE041255A

42 HANDLE 1 CWE161010

43 CABINET SIDE PLATE (RIGHT) 1 CWE041158A

44 HANDLE 2 CWE16000E

45 CABINET FRONT PLATE CO. 1 CWE06K1043

46 WIRE NET 1 CWD041041A

47 CABINET TOP PLATE 1 CWE031031A

48 CONTROL BOARD COVER (BOTTOM) 1 CWH131168

49 CONTROL BOARD COVER (TOP) 1 CWH131169A

56 DRAIN HOSE 1 CWH5850080

57 PACKING 1 CWB81012

58 SOUND PROOF MATERIAL 1 CWG302290

59 SOUND PROOF MATERIAL 1 CWG302301

(NOTE)

• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

• “O” marked parts are recommended to be kept in stock.

[PHAAM] Printed in Malaysia

SFYW0712-00

Panasonic CS-E15HKD, CS-E7HKEW, CU-E7HKE, CS-E9HKEW, CU-E9HKE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual