Downloaded from AC-Manual.com Manuals &

Downloaded from AC-Manual.com Manuals &
&
Downloaded from AC-Manual.com Manuals
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
2.1.
2.2.
2.3.
2.4.
2.5.
2.6.
2.7.
3
4
5
6
7
8
9
10
11
CS-E7HKEW CU-E7HKE -------------------------------5
CS-E9HKEW CU-E9HKE -------------------------------7
CS-E12HKEW CU-E12HKE ----------------------------9
CS-E15HKEW CU-E15HKE -------------------------- 11
Outdoor Unit: CU-2E15GBE--------------------------- 13
Outdoor Unit: 3E18EBE -------------------------------- 14
Outdoor Unit: CU-3E23CBPG
CU4E27CBPG ------------------------------------------------ 15
Features ------------------------------------------------------------ 19
Location of Controls and Components------------------ 21
4.1. Indoor Unit ------------------------------------------------- 21
4.2. Outdoor Unit ----------------------------------------------- 21
4.3. Remote Control ------------------------------------------- 21
Dimensions ------------------------------------------------------- 22
5.1. Indoor Unit ------------------------------------------------- 22
5.2. Outdoor Unit ----------------------------------------------- 23
Refrigeration Cycle Diagram -------------------------------- 24
6.1. CS-E7HKEW CU-E7HKECS-E9HKEW CUE9HKECS-E12HKEW CU-E12HKE ---------------- 24
6.2. CS-E15HKEW CU-E15HKE -------------------------- 25
Block Diagram --------------------------------------------------- 26
7.1. CS-E7HKEW CU-E7HKECS-E9HKEW CUE9HKECS-E12HKEW CU-E12HKE ---------------- 26
7.2. CS-E15HKEW CU-E15HKE -------------------------- 27
Wiring Connection Diagram --------------------------------- 28
8.1. Indoor Unit ------------------------------------------------- 28
8.2. Outdoor Unit ----------------------------------------------- 29
Electronic Circuit Diagram----------------------------------- 31
9.1. Indoor Unit ------------------------------------------------- 31
9.2. Outdoor Unit ----------------------------------------------- 32
Printed Circuit Board ------------------------------------------ 34
10.1. Indoor Unit ------------------------------------------------- 34
10.2. Outdoor Unit ----------------------------------------------- 36
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
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.
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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).
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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.
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2 Specifications
2.1.
CS-E7HKEW CU-E7HKE
ITEM
UNIT
INDOOR UNIT
OUTDOOR UNIT
Performance Test Condition
C
Capacity
O
O
L EER
I
N
G Noise Level
H
Capacity
E
A
T COP
I
N
Noise Level
G
Moisture Removal
Air Volume
EUROVENT
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
QLo
m3/min (ft3/min)
Lo
m3/min (ft3/min)
Me
m3/min (ft3/min)
Hi
m3/min (ft3/min)
SHi
m3/min (ft3/min)
Refrigeration Control Device
Refrigeration Oil
Refrigerant (R410A)
Dimension
—
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)
—
Check Valve & Capillary Tube
cm3
—
RB68A or Freol Alpha68M (320)
g (oz)
—
790 (27.9)
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)
kg (lbs)
9 (20)
33 (73)
Net Weight
Pipe Diameter
Cooling; 4.5 (160)
Heating; 5.25 (190)
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)
m (ft)
15 (49.2)
Height Difference
Additional Gas Amount
Refrigeration Charge Less
Drain Hose
g/m (oz/ft)
20 (0.2)
m (ft)
7.5 (24.6)
Inner Diameter
mm
16
Length
mm
650
—
—
Hermetic Motor
—
Brushless (6-pole)
—
650
Type
Compressor
Motor Type
Rated Output
W
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—
ITEM
UNIT
Type
Material
Motor Type
Fan
Propeller Fan
ASG20K1
PP
Transistor (8-pole)
Induction (6-pole)
W
—
62
Output Power
W
30
25
QLo (Cool/Heat)
rpm
680 / 780
—
Lo (Cool/Heat)
rpm
780 / 850
—
Me (Cool/Heat)
rpm
1010 / 1085
—
Hi (Cool/Heat)
rpm
1240 / 1320
750 / -
SHi (Cool/Heat)
rpm
1310 /1390
—
Aluminium (Pre Coat)
Aluminium
Slit Fin
Corrugated Fin
Fin Material
Fin Type
Row x Stage x FPI
Size (W x H x L)
Air Filter
OUTDOOR UNIT
Input Power
Fan Speed
Heat Exchanger
INDOOR UNIT
Cross-Flow Fan
2 x 15 x 17
mm
2 x 24 x 17
36.4 x 504 x 713
610 x 315 x 25.4
Material
Type
684
Polypropelene
—
One-Touch
—
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
Power Source (Phase, Voltage, Cycle)
Unit
ø
Single
V
230
Hz
Input Power
W
Starting Current
A
Running Current
A
Maximum current
A
Power Factor
%
50
Cooling; 470 (170 ~ 580)
Heating; 635 (160 ~ 1020)
3.0
Cooling; 2.2
Heating; 3.0
4.8
Cooling; 93
Heating; 92
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
—
m
—
Thermostat
Electronic Control
Protection Device
Electronic Control
Note
• Specifications are subject to change without notice for further improvement.
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2.2.
CS-E9HKEW CU-E9HKE
ITEM
UNIT
INDOOR UNIT
OUTDOOR UNIT
Performance Test Condition
C Capacity
O
O
L EER
I
N
Noise Level
G
H Capacity
E
A
T COP
I
N
Noise Level
G
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
High 40, Low 27, QLo 24
Power level dB
High 51, Low 38, QLo 35
m3/min (ft3/min)
Lo
m3/min (ft3/min)
Me
m3/min (ft3/min)
Hi
m3/min (ft3/min)
m3/min (ft3/min)
Refrigeration Control Device
Refrigerant (R410A)
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)
—
Check Valve & Capillary Tube
cm3
—
RB68A or Freol Alpha68M (320)
g (oz)
—
965 (34.1)
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)
kg (lbs)
9 (20)
Net Weight
Pipe Diameter
60
3.4
QLo
Refrigeration Oil
High 47
1.6
pt/h
SHi
Dimension
3.71 (4.18 ~ 3.21)
dB (A)
l/h
Moisture Removal
Air Volume
EUROVENT
Gas
mm (inch)
Liquid
34 (75)
9.52 (3/8)
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
Refrigeration Charge Less
Drain Hose
Compressor
g/m (oz/ft)
20 (0.2)
m (ft)
7.5 (24.6)
Inner Diameter
mm
16
—
Length
mm
650
—
Type
—
Hermetic Motor
Motor Type
—
Brushless (6-pole)
—
700
Rated Output
W
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ITEM
UNIT
Type
INDOOR UNIT
OUTDOOR UNIT
Cross-Flow Fan
Propeller Fan
Material
Motor Type
Input Power
Fan
PP
Transistor (8-pole)
Induction (6-pole)
—
65
W
Output Power
Fan Speed
ASG20K1
W
30
25
QLo (Cool/Heat)
rpm
720 / 890
—
Lo (Cool/Heat)
rpm
830 / 940
—
Me (Cool/Heat)
rpm
1070 / 1170
—
Hi (Cool/Heat)
rpm
1310 / 1400
770 / -
SHi (Cool/Heat)
rpm
Fin Material
1390 / 1490
—
Aluminium (Pre Coat)
Aluminium
Slit Fin
Corrugated Fin
2 x 15 x 19
2 x 24 x 17
Fin Type
Heat Exchanger
Row x Stage x FPI
Size (W x H x L)
Air Filter
mm
36.4 x 504 x 713
610 x 315 x 25.4
Material
Type
684
Polypropelene
—
One-Touch
—
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
Power Source (Phase, Voltage, Cycle)
Unit
ø
Single
V
230
Hz
Input Power
W
Starting Current
A
Running Current
A
Maximum current
A
Power Factor
%
50
Cooling; 590 (175 ~ 750)
Heating; 835 (165 ~ 1340)
3.9
Cooling; 2.8
Heating; 3.9
5.9
Cooling; 92
Heating; 93
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
—
m
—
Thermostat
Electronic Control
Protection Device
Electronic Control
Note
• Specifications are subject to change without notice for further improvement.
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2.3.
CS-E12HKEW CU-E12HKE
ITEM
UNIT
INDOOR UNIT
OUTDOOR UNIT
Performance Test Condition
C Capacity
O
O
L EER
I
N
Noise Level
G
H Capacity
E
A
T COP
I
N
Noise Level
G
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
High 42, Low 33, QLo 30
Power level dB
High 53, Low 44, QLo 41
m3/min (ft3/min)
Lo
m3/min (ft3/min)
Me
m3/min (ft3/min)
Hi
m3/min (ft3/min)
m3/min (ft3/min)
Refrigeration Control Device
Refrigerant (R410A)
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)
—
Check Valve & Capillary Tube
cm3
—
RB68A or Freol Alpha68M (320)
g (oz)
—
980 (34.6)
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)
kg (lbs)
9 (20)
Net Weight
Pipe Diameter
63
4.2
QLo
Refrigeration Oil
High 50
2.0
pt/h
SHi
Dimension
3.23 (3.94 ~ 2.93)
dB (A)
l/h
Moisture Removal
Air Volume
EUROVENT
Gas
mm (inch)
Liquid
34 (75)
9.52 (3/8)
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
Refrigeration Charge Less
Drain Hose
Compressor
g/m (oz/ft)
20 (0.2)
m (ft)
7.5 (24.6)
Inner Diameter
mm
16
—
Length
mm
650
—
Type
—
Hermetic Motor
Motor Type
—
Brushless (6-pole)
—
700
Rated Output
W
9
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ITEM
UNIT
Type
INDOOR UNIT
OUTDOOR UNIT
Cross-Flow Fan
Propeller Fan
Material
Motor Type
Input Power
Fan
PP
Transistor (8-pole)
Induction (6-pole)
—
70
W
Output Power
Fan Speed
ASG20K1
W
30
30
QLo (Cool/Heat)
rpm
730 / 1090
—
Lo (Cool/Heat)
rpm
920 / 1150
—
Me (Cool/Heat)
rpm
1175 / 1325
—
Hi (Cool/Heat)
rpm
1430 / 1500
830 / -
SHi (Cool/Heat)
rpm
Fin Material
1500 / 1550
—
Aluminium (Pre Coat)
Aluminium
Slit Fin
Corrugated Fin
2 x 15 x 21
2 x 24 x 17
Fin Type
Heat Exchanger
Row x Stage x FPI
Size (W x H x L)
Air Filter
mm
36.4 x 504 x 713
610 x 315 x 25.4
Material
Type
684
Polypropelene
—
One-Touch
—
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
Power Source (Phase, Voltage, Cycle)
Unit
ø
Single
V
230
Hz
50
Input Power
W
Starting Current
A
Running Current
A
Maximum current
A
Power Factor
%
Cooling; 950 (185 ~ 1200)
Heating; 1280 (175 ~ 1910)
5.9
Cooling; 4.4
Heating; 5.9
8.8
Cooling; 94
Heating; 94
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
—
m
—
Thermostat
Electronic Control
Protection Device
Electronic Control
Note
• Specifications are subject to change without notice for further improvement.
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2.4.
CS-E15HKEW CU-E15HKE
ITEM
UNIT
INDOOR UNIT
OUTDOOR UNIT
Performance Test Condition
C
Capacity
O
O
L
I EER
N
G Noise Level
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
H Capacity
E
A
T
I COP
N
G Noise Level
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)
High 43, Low 35, QLo 32
Power level dB
High 54, Low 46, QLo 43
l/h
QLo
m3/min (ft3/min)
Lo
m3/min (ft3/min)
Me
m3/min (ft3/min)
Hi
m3/min (ft3/min)
SHi
m3/min (ft3/min)
cm
Refrigerant (R410A)
High 46
59
2.4
pt/h
Refrigeration Oil
3
5.1
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)
—
Expansion Valve
—
RB68A or Freol Alpha68M (400)
g (oz)
—
1.06k (37.4)
mm (inch)
280 (11-1/32)
750 (29-17/32)
Width
mm (inch)
799 (31-15/32)
875 (34-15/32)
Depth
mm (inch)
183 (7-7/32)
345 (13-19/32)
kg (lbs)
9 (20)
Gas
mm (inch)
Liquid
Height
Net Weight
Pipe Diameter
12.0 (12.5 ~ 10.8)
dB (A)
Refrigeration Control Device
Dimension
10.9 (14.3 ~ 10.7)
dB (A)
BTU/hW
Moisture Removal
Air Volume
EUROVENT
48 (106)
12.7 (1/2)
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
Refrigeration Charge Less
Drain Hose
Compressor
g/m (oz/ft)
20 (0.2)
m (ft)
7.5 (24.6)
Inner Diameter
mm
12
—
Length
mm
650
—
Type
—
Hermetic Motor
Motor Type
—
Brushless (4-pole)
—
700
Rated Output
W
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ITEM
UNIT
Type
INDOOR UNIT
OUTDOOR UNIT
Cross-Flow Fan
Propeller Fan
Material
Motor Type
Input Power
Fan
—
—
W
30
40
rpm
850 / 1160
—
Lo (Cool/Heat)
rpm
990 / 1230
—
Me (Cool/Heat)
rpm
1245 / 1390
—
Hi (Cool/Heat)
rpm
1500 / 1550
660 / 640
SHi (Cool/Heat)
rpm
1560 / 1570
—
Aluminium (Pre Coat)
Aluminium
Fin Type
Slit Fin
Corrugated Fin
2 x 15 x 21
1 x 28 x 18
610 x 315 x 25.4
22 x 711 x 835
Polypropelene
—
One-Touch
—
Row x Stage x FPI
Size (W x H x L)
Air Filter
Transistor (8-pole)
QLo (Cool/Heat)
Fin Material
Heat Exchanger
PP
Transistor (8-pole)
W
Output Power
Fan Speed
ASG20K1
mm
Material
Type
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
Power Source (Phase, Voltage, Cycle)
Unit
ø
Single
V
230
Hz
Input Power
W
Starting Current
A
Running Current
A
Maximum current
A
Power Factor
%
50
Cooling; 1.37k (215 ~ 1.60k)
Heating; 1.57k (245 ~ 2.25k)
7.1
Cooling; 6.3
Heating; 7.1
10.2
Cooling; 95
Heating; 96
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
—
m
—
Thermostat
Electronic Control
Protection Device
Electronic Control
Note
• Specifications are subject to change without notice for further improvement.
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2.5.
Outdoor Unit: CU-2E15GBE
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2.6.
Outdoor Unit: 3E18EBE
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2.7.
Outdoor Unit: CU-3E23CBPG CU-4E27CBPG
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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
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• 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.
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4 Location of Controls and Components
4.1.
Indoor Unit
4.2.
Outdoor Unit
4.3.
Remote Control
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5 Dimensions
5.1.
Indoor Unit
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5.2.
Outdoor Unit
5.2.1.
CU-E7HKE CU-E9HKE CU-E12HKE
5.2.2.
CU-E15HKE
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6 Refrigeration Cycle Diagram
6.1.
CS-E7HKEW CU-E7HKE
CS-E9HKEW CU-E9HKE
CS-E12HKEW CU-E12HKE
Piping size
Model
E7HK, E9HK, E12HK
Gas
Liquid
Rated
Length
(m)
3/8”
1/4”
7.5
Common
Length
(m)
Max.
Elevation
(m)
Min. Piping
Length
(m)
Max. Piping
Length
(m)
Additional
Refrigerant
(g/m)
7.5
15
3
15
20
If piping length is over common length, additional refrigerant should be added as shown in the table.
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6.2.
CS-E15HKEW CU-E15HKE
Piping size
Model
E15HK
Gas
Liquid
Rated
Length
(m)
1/2”
1/4”
7.5
Common
Length
(m)
Max.
Elevation
(m)
Min. Piping
Length
(m)
Max. Piping
Length
(m)
Additional
Refrigerant
(g/m)
7.5
15
3
15
20
If piping length is over common length, additional refrigerant should be added as shown in the table.
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7 Block Diagram
7.1.
CS-E7HKEW CU-E7HKE
CS-E9HKEW CU-E9HKE
CS-E12HKEW CU-E12HKE
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7.2.
CS-E15HKEW CU-E15HKE
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8 Wiring Connection Diagram
8.1.
Indoor Unit
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8.2.
8.2.1.
Outdoor Unit
CU-E7HKE CU-E9HKE CU-E12HKE
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8.2.2.
CU-E15HKE
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9 Electronic Circuit Diagram
9.1.
Indoor Unit
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9.2.
9.2.1.
Outdoor Unit
CU-E7HKE CU-E9HKE CU-E12HKE
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9.2.2.
CU-E15HKE
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10 Printed Circuit Board
10.1. Indoor Unit
10.1.1. Main Printed Circuit Board
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10.1.2. Power Printed Circuit Board
10.1.3. Indicator Printed Circuit Board
10.1.4. Patrol Printed Circuit Board
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10.2. Outdoor Unit
10.2.1. CU-E7HKE CU-E9HKE CU-E12HKE
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10.2.2. CU-E15HKE
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11 Installation Instruction
11.1. Select The Best Location
11.2. Indoor/Outdoor Unit
Installation Diagram
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.
Model
Max. Additional
Min.
Max
Rated
Piping size Length Elevation Piping Piping Refrigerant
(g/m)
Length Length
(m)
(m)
Gas Liquid
(m)
(m)
E7HKE,
E9HKE, 3/8”
E12HKE
1/4”
7.5
15
3
15
20
E15HKE 1/2”
1/4”
7.5
15
3
15
20
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
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11.3. Indoor Unit
11.3.1.
HOW TO FIX INSTALLATION PLATE
11.3.2.
The mounting wall is strong and solid enough to prevent it from
the vibration.
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.
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.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
: 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.
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.
11.3.3.
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.
INDOOR UNIT INSTALLATION
1. For the right rear piping
2. For the right and right bottom piping
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3. For the embedded piping
(This can be used for left rear piping and left bottom piping
also.)
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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 mm2
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).
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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.
11.4.2.
Model
A
B
C
D
E7HKE, E9HKE,
E12HKE
570 mm
105mm
18.5 mm
320 mm
E15HKE
612.5 mm
131 mm
19 mm
383 mm
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.
Model
Piping size (Torque)
Gas
Liquid
E7HKE, E9HKE, E12HKE
3/8” [42 N m]
1/4” [18 N m)
E15HKE
1/2” [55 N m]
1/4” [18 N m)
O
O
O
O
Do not over tighten, over tightening cause gas leakage.
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.
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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 m with a torque wrench.
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.
O
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 mm2 flexible
cord, type designation 245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
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4. Cable connection to the power supply through knife switch (Disconnecting means).
• Connect the approved polychloroprene sheathed power supply cable (3 x 1.5 mm2), type designation 245 IEC 57 or heavier
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).
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.
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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.
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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 Control
O
O
O
O
O
Tab (rpm)
SHi
Me+
Me
Me-
Lo
[Heating]
• Fan motor’s number of rotation is determined according to remote control setting.
Remote Control
O
O
O
O
O
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.
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[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)
1
Heating
Auto with Heat Exchanger
Temperature
Manual
Cooling and Ion
3
A
Upward fix
0
B
Downward fix
45
C
Upward fix
0
D
Downward fix
0
12
25
Auto
37
4
5
49
60
31
37
31
37
10 ~ 32
Manual
Soft Dry
2
12
18
Auto
25
10 ~ 32
Manual
12
18
25
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.
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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.
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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.
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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.
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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.
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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 o Patrol Mode
• Patrol Mode
o Stop
• Patrol Mode
o Normal Operation
• Stop
o Patrol
:
:
:
:
Beep
Long Beep
Beep
Beep
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.
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.
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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.
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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.
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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.
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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.
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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
Indoor intake air (qC)
T < 15 or T
30
Outdoor air (qC)
T < 16 or T
38
Indoor heat exchanger (qC)
Heating
—
T < 4 or T
T < 30
T
24
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.
2.
3.
4.
When indoor heat exchanger temperature is lower than 0qC continuously for 6 minutes, compressor will stop operating.
Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 13qC.
At the same time, indoor fan speed will be higher than during its normal operation.
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)
1
Cooling and e-ion
Auto
3
4
5
28
30
22 ~ 30
Manual
22
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2
24
26
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.
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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.
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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.
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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.
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15.1.1. Relationship between the condition of the air conditioner and pressure and electric
current
Cooling Mode
Condition of the air
conditioner
Low Pressure
High Pressure
Heating Mode
Electric current
during operating
Low Pressure
High Pressure
Electric current
during operating
Insufficient refrigerant
(gas leakage)
Clogged capillary tube
or Strainer
Short circuit in the
indoor unit
Heat radiation deficiency
of the outdoor unit
Inefficient compression
• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
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15.2. Breakdown Self Diagnosis Function
15.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code)
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.
• 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 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.
• 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.
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.
Error Code
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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
Abnormality / Protection control
Abnormality
Judgement
—
Emergency
operation
Primary location to verify
H00
No abnormality detected
H11
Indoor / outdoor abnormal
communication
Normal operation
H12
Connection capability rank abnormal
—
—
H14
Indoor intake air temperature sensor
abnormality
Continue for 5 sec.
—
• Intake air temperature sensor
(detective or disconnected)
H15
Outdoor compressor temperature
sensor abnormality
Continue for 5 sec.
—
• Compressor temperature sensor
(detective or disconnected)
H16
Outdoor Current Transformer open
circuit
—
—
• Outdoor PCB
• IPM (Power transistor) module
H19
Indoor fan motor merchanism lock
7 times occurance
continuously.
—
• Indoor PCB
• Fan motor
H23
Indoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
O
(Cooling only)
H25
E-Ion breakdown
—
—
• Indoor PCB
• E-Ion PCB
H27
Outdoor air temperature sensor
abnormality
Continue for 5 sec.
O
• Outdoor temperature sensor
(defective or disconnected)
H28
Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
O
• Outdoor heat exchanger
temperature sensor (defective or
disconnected)
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
(defective or disconnected)
H98
Indoor high pressure protection
—
—
• Air filter dirty
• Air circulation short circuit
H99
Indoor heat exchanger anti-freezing
protection
—
—
• Insufficient refrigerant
• Air filter dirty
F11
Cooling / Heating cycle changeover
abnormality
4 times occurance
within 30 minutes
—
• 4-way valve
• V-coil
F90
PFC control
4 times occurance
within 20 minutes
—
• Voltage at PFC
F91
Refrigeration cycle abnormal
2 times occurance
within 20 minutes
—
• No refrigerant
(3-way valve is closed)
F93
Outdoor compressor abnormal
revolution
4 times occurance
within 20 minutes
—
• Outdoor compressor
F95
Cool high pressure protection
4 times occurance
within 20 minutes
—
• Outdoor refrigerant circuit
F96
IPM (power transistor) overheating
protection
—
—
• Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97
Outdoor compressor overheating
protection
4 times occurance
within 20 minutes
—
• Insufficient refrigerant
• Compressor
F98
Total running current protection
3 times occurance
within 20 minutes
—
• Excess refrigerant
• Improper heat radiation
F99
Outdoor Direct Current (DC) peak
detection
7 times occurance
continuously
—
• Outdoor PCB
• IPM (Power transistor)
• Compressor
> 1 min after starting
operation
Indoor fan operation
only
• Internal / external cable connections
• Indoor / Outdoor PCB
—
• Heat exchanger temperature sensor
(defective or disconnected)
—
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.
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15.3.2. CU-E15HKE
Diagnosis
display
Abnormality / Protection control
Abnormality
Judgement
—
Emergency
operation
Primary location to verify
H00
No abnormality detected
H11
Indoor / outdoor abnormal
communication
Normal operation
H12
Connection capability rank abnormal
H14
Indoor intake air temperature sensor
abnormality
Continue for 5 sec.
—
• Intake air temperature sensor
(defective or disconnected)
H15
Outdoor compressor temperature sensor
abnormality
Continue for 5 sec.
—
• Compressor temperature sensor
(defective or disconnected)
H16
Outdoor Current Transformer open
circuit
—
—
• Outdoor PCB
• IPM (Power transistor) module
H19
Indoor fan motor merchanism lock
—
—
• Indoor PCB
• Fan motor
H23
Indoor heat exchanger temperature
sensor abnormality
H25
E-Ion breakdown
H27
Outdoor air temperature sensor
abnormality
H28
> 1 min after starting Indoor fan operation
operation
only
—
—
• Internal / external cable connections
• Indoor / Outdoor PCB
—
Continue for 5 sec.
—
O
(Cooling only)
—
• Heat exchanger temperature sensor
(defective or disconnected)
—
• Indoor PCB
• E-Ion PCB
Continue for 5 sec.
O
• Outdoor temperature sensor (defective
or disconnected)
Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
O
• Outdoor heat exchanger temperature
sensor (defective or disconnected)
H30
Discharge temperature sensor
abnormality
Continue for 5 sec.
—
• 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
(defective or disconnected)
H97
Outdoor Fan Motor lock abnormality
—
—
• Outdoor PCB
• Outdoor Fan Motor
H98
Indoor high pressure protection
—
—
• Air filter dirty
• Air circulation short circuit
H99
Indoor heat exchanger anti-freezing protection
—
—
• Insufficient refrigerant
• Air filter dirty
F11
Cooling / Heating cycle changeover
abnormality
4 times occurance
within 30 minutes
—
• 4-way valve
• V-coil
F90
PFC control
4 times occurance
within 10 minutes
—
• Voltage at PFC
F91
Refrigeration cycle abnormality
7 times occurance
continuously
—
• No refrigerant
(3-way valve is closed)
F93
Outdoor compressor abnormal revolution
4 times occurance
within 20 minutes
—
• Outdoor compressor
F95
Cool high pressure protection
4 times occurance
within 20 minutes
—
• Outdoor refrigerant circuit
F96
IPM (power transistor) overheating
protection
—
• Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97
Outdoor compressor overheating
protection
4 times occurance
within 20 minutes
—
• Insufficient refrigerant
• Compressor
F98
Total running current protection
3 times occurance
within 20 minutes
—
• Excess refrigerant
• Improper heat radiation
F99
Outdoor Direct Current (DC) peak
detection
7 times occurance
continuously
—
• Outdoor PCB
• 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.
65
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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
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16.1.3. To remove discharge grille
67
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16.1.4. To remove control board
16.1.5. To remove cross flow fan and indoor fan motor
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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.
5. Remove the Control Board as follows:
Fig. 1
Fig. 4
2. Remove the 6 screws of the Front Panel.
Fig. 2
3. Remove the screw of the Terminal Board Cover.
4. Remove the Top Cover of the Control Board by 4 hooks.
Fig. 5
Fig. 6
Fig. 3
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16.2.2. CU-E15HKE
1. Remove the 4 screws of the Top Panel.
4. Remove the Control Board.
Fig. 4
5. Remove the 8 screws of the Electronic Controller.
Fig. 1
2. Remove the 10 screws of the Front Panel.
Fig. 5
Fig. 2
3. Remove the Top Cover of the Electronic Controller.
Caution! When handling electronic controller, be careful of
electrostatic discharge.
Fig. 3
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17 Technical Data
17.1. Operation Characteristics
17.1.1. CS-E7HKEW CU-E7HKE
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17.1.2. CS-E9HKEW CU-E9HKE
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17.1.3. CS-E12HKEW CU-E12HKE
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17.1.4. CS-E15HKEW CU-E15HKE
84
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17.2. Sensible Capacity Chart
O CS-E7HKEW CU-E7HKE
230V
Outdoor Temp. (qC)
30
35
40
46
Indoor wet
bulb temp.
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
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
19.5qC
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
19.0qC
2.05
0.47
O CS-E9HKEW CU-E9HKE
230V
Outdoor Temp. (qC)
30
35
40
46
Indoor wet
bulb temp.
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
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
19.5qC
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
19.0qC
2.60
0.59
O CS-E12HKEW CU-E12HKE
230V
Outdoor Temp. (qC)
30
35
40
46
Indoor wet
bulb temp.
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
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
19.5qC
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
19.0qC
3.50
0.95
O CS-E15HKEW CU-E15HKE
230V
Outdoor Temp. (qC)
30
35
40
46
Indoor wet
bulb temp.
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
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
TC - Total Cooling Capacity (kW)
SHC - Sensible Heat Capacity (kW)
- Input Power (kW)
IP
Indoor 27qC/19qC
Outdoor 35qC/24qC
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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.
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REF.
NO.
PART NAME & DESCRIPTION
QTY.
CS-E7HKEW
CS-E9HKEW
CS-E12HKEW
CS-E15HKEW REMARKS
1
CWD50C1572
m
m
m
1
CHASSY COMPLETE
2
FAN MOTOR
1
ARW61G8P30AC
m
m
m
3
CROSS FLOW FAN COMPLETE
1
CWH02C1045
m
m
m
4
BEARING ASSY
1
CWH64K007
m
m
m
5
SCREW - CROSS FLOW FAN
1
CWH551146
m
m
m
6
EVAPORATOR
1
CWB30C2484
CWB30C2386
CWB30C2388
CWB30C2387
7
FLARE NUT (1/4”)
1
CWT251030
m
m
m
8
FLARE NUT (3/8”) (1/2”)
1
CWT251031
m
m
CWT251032
9
CLIP FOR SENSOR
1
CWH32143
m
m
m
10
DISCHARGE GRILLE COMPLETE
1
CWE20C2621
m
m
m
11
VERTICAL VANE
12
CWE241157
m
m
m
12
CONNECTING BAR
1
CWE261092
m
m
m
13
CONNECTING BAR
2
CWE261071
m
m
m
14
CONNECTING BAR
1
CWE261091
m
m
m
O
15
AIR SWING MOTOR
1
CWA981091
m
m
m
17
CAP - DRAIN TRAY
1
CWH521096
m
m
m
18
HORIZONTAL VANE COMPLETE
1
CWE24C1176
m
m
m
19
BACK COVER CHASSIS
1
CWD932454
m
m
m
20
CONTROL BOARD CASING
1
CWH102321
m
m
m
21
TERMINAL BOARD COMPLETE
1
CWA28C2305
m
m
m
O
23
ELECTRONIC CONTROLLER - MAIN
1
CWA73C2957
CWA73C3018
CWA73C3019
CWA73C3020
O
24
ELECTRONIC CONTROLLER - POWER
1
CWA745131
m
m
m
O
25
SENSOR COMPLETE
1
CWA50C2122
m
m
m
O
26
CONTROL BOARD FRONT COVER
1
CWH131207
m
m
m
27
INDICATOR COMPLETE
1
CWE39C1168
m
m
m
28
INDICATOR HOLDER
1
CWD932744
m
m
m
29
INDICATOR HOLDER
1
CWD932745
m
m
m
30
CONTROL BOARD FRONT COVER CO.
1
CWH13C1171
m
m
m
31
REMOTE CONTROL COMPLETE
1
CWA75C3177
m
m
m
O
32
FRONT GRILLE COMPLETE
1
CWE11C3896
m
m
m
O
33
INTAKE GRILLE COMPLETE
1
CWE22C1415
m
m
m
34
GRILLE DOOR
1
CWE14C1010
m
m
m
35
E-ION FILTER
2
CWD00K1004
m
m
m
36
SCREW - FRONT GRILLE
2
XTT4+16CFJ
m
m
m
37
CAP - FRONT GRILLE
2
CWH521109
m
m
m
38
DRAIN HOSE
1
CWH851063
m
m
m
39
INSTALLATION PLATE
1
CWH361067
m
m
m
40
BAG COMPLETE - INSTALLATION SCREW
1
CWH82C067
m
m
m
41
FULCRUM
1
CWH621049
m
m
m
O
O
42
E-ION AIR PURIFYING SYSTEM
1
CWH14C5332
m
m
m
O
43
ION - GENERATOR
1
CWH94C0014
m
m
m
O
44
OPERATION INSTRUCTIONS
1
CWF565854
m
m
CWF565858
45
INSTALLATION INSTRUCTIONS
(ENG., ESP., POR., GRE.)
1
CWF613365
m
m
CWF613368
46
INSTALLATION INSTRUCTIONS
(NED., FRA., ITA., DEU.)
1
CWF613366
m
m
CWF613369
(NOTE)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
• “O” marked parts are recommended to be kept in stock.
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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.
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REF. NO.
PART NAME & DESCRIPTION
QTY.
CU-E7HKE
CU-E9HKE
CU-E12HKE
1
CHASSY ASS’Y
1
CWD50K2073
m
m
2
SOUND PROOF MATERIAL
1
CWG302447
—
—
3
FAN MOTOR BRACKET
1
CWD541030
m
m
4
SCREW - FAN MOTOR BRACKET
2
CWH551217
m
m
5
FAN MOTOR
1
CWA951536
CWA951553
CWA951542
6
SCREW - FAN MOTOR MOUNT
3
CWH55252J
m
m
7
PROPELLER FAN ASS’Y
1
CWH03K1010
m
m
8
NUT - PROPELLER FAN
1
CWH56053J
m
m
9
COMPRESSOR
1
5RS092XCD01
5RS102XBC01
m
m
REMARKS
O
O
10
ANTI - VIBRATION BUSHING
3
CWH50077
m
11
NUT - COMPRESSOR MOUNT
3
CWH56000J
m
m
12
CONDENSER
1
CWB32C2444
CWB32C2446
CWB32C2419
13
TUBE ASS’Y CO. (CAP. / CHK VALVE)
1
CWT01C4051
CWT01C4201
CWT01C4202
15
HOLDER COUPLING
1
CWH351023
m
m
16
2-WAYS VALVE (LIQUID)
1
CWB021301
m
m
O
17
3-WAYS VALVE (GAS)
1
CWB011374
m
m
O
19
REACTOR
1
G0C193J00003
m
G0C193J00004
O
20
TERMINAL COVER
1
CWH171039A
m
m
21
NUT - TERMINAL COVER
1
CWH7080300J
m
m
22
SOUND PROOF BOARD
1
CWH151172
m
m
23A
SOUND PROOF MATERIAL
1
CWG302443
CWG302292
m
23B
m
SOUND PROOF MATERIAL
1
—
CWG302293
24
SENSOR COMPLETE
1
CWA50C2205
m
m
25
CONTROL BOARD COVER
1
CWH131264
m
m
26
ELECTRONIC CONTROLLER - MAIN
1
CWA73C3095R
CWA73C3096R
CWA73C3097R
O
27
TERMINAL BOARD ASS’Y
1
CWA28K1110J
m
m
O
28
CABINET SIDE PLATE CO.
1
CWE04C1116
m
m
29
SENSOR COMPLETE
1
CWA50C2391
m
m
30
CABINET SIDE PLATE
1
CWE041248A
m
m
31
CABINET FRONT PLATE CO.
1
CWE06C1039
m
m
O
O
32
CABINET TOP PLATE
1
CWE031014A
m
m
33
PLATE - C. B. COVER
1
CWH131301
m
m
34
CONTROL BOARD COVER CO.
1
CWH13C1064
m
m
35
HANDLE
1
CWE161010
m
m
38
4-WAYS VALVE
1
CWB001037J
m
m
O
39
V - COIL COMPLETE
1
CWA43C2143J
m
m
O
40
WIRE NET
1
CWD041111A
m
m
41
L - TUBE
1
CWH5850080
m
m
42
PACKING - L. TUBE
1
CWB81012
m
m
47
HOLDER SENSOR
1
CWH321023
m
m
(NOTE)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
• “O” marked parts are recommended to be kept in stock.
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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.
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REF. NO.
1
DESCRIPTION & NAME
CHASSY ASS’Y
QTY.
CU-E15HKE
1
CWD50K2085
2
ANTI-VIBRATION BUSHING
3
CWH50077
3
COMPRESSOR
1
5CS130XAD04
4
NUT-COMPRESSOR MOUNT
3
CWH56000J
5
SOUND PROOF MATERIAL
1
CWG302302
6
FAN MOTOR BRACKET
1
CWD541084
7
FAN MOTOR
1
CWA981166J
8
SCREW - FAN MOTOR BRACKET
2
CWH551198
9
SCREW - FAN MOTOR MOUNT
3
CWH551217
CWH03K1016
REMARKS
O
O
10
PROPELLER FAN ASSY
1
11
NUT - PROPELLER FAN
1
CWH56053J
12
CONDENSER
1
CWB32C2449
14
TUBE ASS’Y COMPLETE
1
CWT023679
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
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
O
O
(NOTE)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
• “O” marked parts are recommended to be kept in stock.
94
Downloaded from AC-Manual.com Manuals
[PHAAM] Printed in Malaysia
SFYW0712-00
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