Panasonic Air Conditioner CS C18KKS User Manual
Order No: PHAAM1006051C3  
Indoor Unit  
CS-C18KKS  
CS-C24KKS  
Outdoor Unit  
CU-C18KKS  
CU-C24KKS  
WARNING  
This service information is designed for experienced repair technicians only and is not designed for use by the general public.  
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.  
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service  
or repair the products dealt with in this service information by anyone else could result in serious injury or death.  
TABLE OF CONTENTS  
1. Safety Precautions.............................................3  
2. Specification.......................................................5  
3. Features ..............................................................7  
4. Location of Controls and Components ...........8  
10. Printed Circuit Board.......................................17  
10.1 Indoor Unit..................................................17  
11. Installation Instruction.....................................20  
11.1 Select the Best Location ............................20  
11.2 Indoor Unit..................................................21  
11.3 Outdoor Unit...............................................25  
4.1  
4.2  
4.3  
Indoor Unit....................................................8  
Outdoor Unit.................................................8  
Remote Control ............................................8  
12. Operation Control.............................................29  
5. Dimensions.........................................................9  
12.1 Cooling Operation ......................................29  
12.2 Soft Dry Operation......................................30  
12.3 Automatic Operation ..................................31  
12.4 Indoor Fan Speed Control..........................32  
12.5 Outdoor Fan Speed Control.......................34  
12.6 Vertical Airflow Direction Control................34  
12.7 Horizontal Airflow Direction Control ...........35  
12.8 Powerful Operation.....................................35  
12.9 Quiet Operation..........................................36  
12.10 Timer Control..............................................37  
12.11 Random Auto Restart Control....................37  
12.12 Remote Control Signal Receiving Sound...37  
12.13 Patrol Operation .........................................38  
12.14 E-ion operation...........................................42  
12.15 ECO Patrol Operation ................................45  
5.1  
5.2  
Indoor Unit....................................................9  
Outdoor Unit...............................................10  
6. Refrigeration Cycle Diagram...........................11  
7. Block Diagram ..................................................12  
8. Wiring Connection Diagram............................13  
8.1  
8.2  
CS-C18KKS CU-C18KKS..........................13  
CS-C24KKS CU-C24KKS..........................14  
9. Electronic Circuit Diagram..............................15  
9.1  
9.2  
CS-C18KKS CU-C18KKS..........................15  
CS-C24KKS CU-C24KKS..........................16  
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.  
Unauthorized copying and distribution is a violation of law.  
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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.  
WARNING  
CAUTION  
This indication shows the possibility of causing injury or damage to properties.  
•
•
The items to be followed are classified by the symbols:  
This symbol denotes item that is PROHIBITED from doing.  
Carry out test running to confirm that no abnormality occurs after the servicing. Then, explain to user the  
operation, care and maintenance as stated in instructions. Please remind the customer to keep the operating  
instructions for future reference.  
WARNING  
1. Do not modify the machine, part, material during repairing service.  
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.  
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.  
4. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage,  
electrical shock or fire.  
5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.  
6. 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.  
7. 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.  
8. 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.  
9. 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.  
10. Do not use joint cable for indoor / outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to installation instruction  
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor connection. Clamp the cable so that no external force  
will be acted on the terminal. If connecting or fixing is not perfect, it will cause heat up or fire at the connection.  
11. 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 the connection point of terminal, fire or electrical shock.  
12. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration  
cycle (piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).  
13. 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.  
14. 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.  
15. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing.  
16. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with  
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.  
17. 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.  
18. During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of compressor while compressor  
is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion,  
injury etc.)  
19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping  
and valves at opened condition will caused suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc).  
3
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WARNING  
20. 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.  
21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.  
22. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.  
23. Must not use other parts except original parts described in catalog and manual.  
CAUTION  
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the  
unit, it may cause fire.  
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage  
the furniture.  
3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare  
may break and cause refrigerant gas leakage.  
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.  
5. Select an installation location which is easy for maintenance.  
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F – 70°F (30°C – 40°C) higher. Please use  
a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).  
Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).  
7. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following  
methods.  
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries,  
permanent connection of this room air conditioner to the power supply is prohibited.  
i. Power supply connection to the receptacle using a power plug. Use an approved 15/16A (3/4~1.5HP) or 16A (2.0HP) or 20A (2.5HP) or  
25A (3.0HP) power plug with earth pin for the connection to the socket.  
ii. Power supply connection to a circuit breaker for the permanent component. Use an approved 16A (3/4~2.0HP) or 20A (2.5HP) or  
25A (3.0HP) circuit breaker for the permanent connection. It must be a double pole switch with a minimum 3.0 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 or servicing work: It may need two people to carry out the installation or servicing work.  
10. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.  
11. Do not sit or step on the unit, you may fall down accidentally.  
12. Do not touch the sharp aluminum fins or edges of metal parts.  
If you are required to handle sharp parts during installation or servicing, please wear hand glove.  
Sharp parts may cause injury.  
4
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2. Specification  
Indoor  
CS-C18KKS  
CU-C18KKS  
CS-C24KKS  
CU-C24KKS  
Model  
Outdoor  
Performance Test Condition  
Phase, Hz  
SASO (T3)  
SASO (T1)  
SASO (T3)  
SASO (T1)  
Single, 60  
220  
Single, 60  
220  
Power Supply  
V
kW  
4.40  
15000  
3780  
9.1  
5.10  
17400  
4390  
7.8  
5.60  
19100  
4820  
13.9  
3.00k  
1.87  
6.35  
98  
6.50  
22200  
5590  
11.9  
2.56k  
2.54  
8.65  
98  
Capacity  
BTU/h  
kcal/h  
Running Current  
Input Power  
A
W
W/W  
1.96k  
2.24  
7.65  
98  
1.69k  
3.02  
10.30  
98  
EER  
BTU/hW  
%
Power Factor  
dB-A  
42 / 37  
-
42 / 37  
-
46 / 40  
-
46 / 40  
-
Indoor Noise (H / L)  
Power Level dB  
dB-A  
56 / -  
-
56 / -  
-
57 / -  
-
57 / -  
-
Outdoor Noise (H / L)  
Power Level dB  
Max Current (A) / Max Input Power (W)  
11.5 / 2.60k  
38.0  
16.8 / 3.70k  
63.0  
Starting Current (A)  
Type  
Hermetic Motor  
Hermetic Motor  
Rotary (2-poles)  
1.8k  
Compressor  
Motor Type  
Rotary (2-poles)  
Output Power  
W
1.2k  
Type  
Cross-Flow Fan  
Cross-Flow Fan  
ASG30K1  
Transistor (8-poles)  
-
Material  
ASG30K1  
Motor Type  
Input Power  
Output Power  
Transistor (8-poles)  
W
-
40  
W
40  
QLo  
rpm  
rpm  
rpm  
rpm  
rpm  
930  
960  
Lo  
Me  
Hi  
1020  
1110  
Speed  
1110  
1230  
1200  
1350  
SHi  
1370  
1500  
Type  
Propeller Fan  
PP Resin  
Induction (6 - poles)  
138  
Propeller Fan  
PP Resin  
Induction (6 - poles)  
135  
Material  
Motor Type  
Input Power  
W
Output Power  
Hi  
W
86  
79  
rpm  
850  
840  
Speed  
Lo  
rpm  
-
490  
Moisture Removal  
L/h (Pt/h)  
0.7 (1.5)  
12.2 (432)  
13.4 (474)  
14.6 (516)  
15.8 (558)  
18.0 (637)  
54.0 (1910)  
-
1.3 (2.7)  
12.9 (457)  
15.0 (528)  
16.6 (586)  
18.2 (642)  
20.2 (714)  
54.0 (1910)  
31.5 (1110)  
QLo  
Lo  
m3/min (ft3/min)  
m3/min (ft3/min)  
m3/min (ft3/min)  
m3/min (ft3/min)  
m3/min (ft3/min)  
m3/min (ft3/min)  
m3/min (ft3/min)  
Indoor Airflow  
Me  
Hi  
SHi  
Hi  
Outdoor  
Airflow  
Lo  
5
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Control Device  
Refrigerant Oil  
Refrigerant Type  
Height(I/D / O/D)  
Width (I/D / O/D)  
Depth (I/D / O/D)  
Net (I/D / O/D)  
Capillary tube  
ATMOS NM56M or SUNISO 4GDID (650)  
R22, 1.27k (44.8)  
Capillary tube  
ATMOS M60 or SUNISO 4GDID (1130)  
R22, 1.61k (56.8)  
Refrigeration  
Cycle  
cm3  
g (oz)  
mm (inch)  
mm (inch)  
mm (inch)  
kg (lb)  
290 (11-7/16)  
1070 (42-5/32)  
235 (9-9/32)  
12.0 (26)  
750 (29-17/32)  
875 (34-15/32)  
345 (13-19/32)  
48.0 (106)  
290 (11-7/16)  
1070 (42-5/32)  
235 (9-9/32)  
12.0 (26)  
750 (29-17/32)  
875 (34-15/32)  
345 (13-19/32)  
56.0 (123)  
Dimension  
Weight  
Pipe Diameter (Liquid / Gas)  
Standard length  
mm (inch)  
m (ft)  
6.35 (1/4) / 12.70 (1/2)  
6.35 (1/4) / 15.88 (5/8)  
5.0 (16.4)  
3 (9.8) ~ 25 (82.0)  
20 (65.6)  
20 (0.2)  
5.0 (16.4)  
3 (9.8) ~ 25 (82.0)  
20 (65.6)  
30 (0.3)  
Length range (min – max)  
I/D & O/D Height different  
Additional Gas Amount  
Length for Additional Gas  
m (ft)  
m (ft)  
g/m (oz/ft)  
m (ft)  
7.5 (24.6)  
16  
7.5 (24.6)  
16  
Inner Diameter  
Drain Hose  
mm  
Length  
mm  
650  
650  
Fin Material  
Pre Coat  
Slit Fin  
Pre Coat  
Slit Fin  
Fin Type  
Indoor Heat  
Exchanger  
Row x Stage x  
FPI  
2 x 15 x 21  
2 x 15 x 21  
Size (W x H x L)  
Fin Material  
Fin Type  
mm  
810 x 315 x 25.4  
Blue Coated  
Slit Fin  
810 x 315 x 25.4  
Blue Coated  
Slit Fin  
Outdoor Heat  
Exchanger  
Row x Stage x  
FPI  
2 x 34 x 17  
2 x 34 x 17  
Size (W x H x L)  
Material  
mm  
25.4 x 714 x 826.2:846.2  
25.4 x 714 x 826.2:846.2  
Polypropelene  
Polypropelene  
One-touch  
Indoor  
Air Filter  
Type  
One-touch  
Power Supply  
Indoor  
Power Supply Cord  
Thermostat  
A
16  
-
20  
Mechanical  
-
Protection Device  
-
Dry Bulb  
32  
Wet Bulb  
23  
Dry Bulb  
32  
Wet Bulb  
23  
Maximum  
Minimum  
Maximum  
Minimum  
Indoor Operation Range  
Outdoor Operation Range  
16  
52  
16  
11  
31  
11  
16  
52  
16  
11  
31  
11  
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air  
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)  
2. Specifications are subjected to change without prior notice for further improvement.  
3. Outdoor Dry Bulb temperature can be set up to 55°C with Indoor Dry Bulb temperature is 29°C. When humidity does not exceed 90% and  
room temperature is above 21°C.  
6
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3. Features  
•
E-ion Air Purifying System with Patrol Sensor  
o
o
Active e-ions are released to catch dust particles and bring them back the large positively charged filter.  
Patrol Sensor color changes to indicate the dirt level in the air  
•
Long Installation Piping  
CS/CU-C18KK, CS/CU-C24KK, long piping up to 25 meters.  
o
•
•
Easy to use remote control  
Quality Improvement  
o
o
o
o
o
o
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  
Blue coated condenser for high resistance to corrosion  
•
Operation Improvement  
o
o
o
Quiet mode to reduce the indoor unit operating sound  
Powerful mode to reach the desired room temperature quickly  
24-hour timer setting  
7
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4. Location of Controls and Components  
4.1 Indoor Unit  
4.2 Outdoor Unit  
4.3 Remote Control  
8
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5. Dimensions  
5.1 Indoor Unit  
9
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5.2 Outdoor Unit  
10  
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6. Refrigeration Cycle Diagram  
INDOOR  
OUTDOOR  
LIQUID  
SIDE  
CAPILLARY  
TUBE  
STRAINER  
THERMOSTAT  
(C24KK only)  
2-WAY  
VALVE  
INTAKE  
AIR  
PIPE  
TEMP.  
TEMP.  
SENSOR  
SENSOR  
HEAT EXCHANGER  
(CONDENSER)  
HEAT EXCHANGER  
(EVAPORATOR)  
GAS  
SIDE  
3-WAY  
VALVE  
COMPRESSOR  
11  
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7. Block Diagram  
12  
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8. Wiring Connection Diagram  
8.1 CS-C18KKS CU-C18KKS  
Resistance of Outdoor Fan Motor Windings  
Resistance of Compressor Windings  
MODEL  
CU-C18KKS  
CWA951401J  
59.47Ω  
MODEL  
CONNECTION  
C-R  
CU-C18KKS  
2KS252F5AA04  
1.959Ω  
CONNECTION  
BLUE-YELLOW  
YELLOW-RED  
60.95Ω  
C-S  
3.083Ω  
Note: Resistance at 20°C of ambient temperature.  
Note: Resistance at 20°C of ambient temperature.  
13  
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8.2 CS-C24KKS CU-C24KKS  
Resistance of Outdoor Fan Motor Windings  
Resistance of Compressor Windings  
MODEL  
CU-C24KKS  
CWA951399J  
59.47Ω  
MODEL  
CONNECTION  
C-R  
CU-C24KKS  
2J39S236A1A  
0.933Ω  
CONNECTION  
YELLOW-BLUE  
YELLOW-ORANGE  
YELLOW-RED  
80.58Ω  
60.95Ω  
C-S  
1.584Ω  
Note: Resistance at 20°C of ambient temperature.  
Note: Resistance at 20°C of ambient temperature.  
14  
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9. Electronic Circuit Diagram  
9.1 CS-C18KKS CU-C18KKS  
15  
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9.2 CS-C24KKS CU-C24KKS  
16  
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10. Printed Circuit Board  
10.1 Indoor Unit  
10.1.1 Main Printed Circuit Board  
17  
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10.1.2 Power Printed Circuit Board  
18  
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10.1.3 Indicator Printed Circuit Board  
10.1.4 Receiver Printed Circuit Board  
10.1.5 High Voltage Power Supply Printed Circuit Board  
19  
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11.1.3 Indoor/Outdoor Unit Installation  
Diagram  
11. Installation Instruction  
11.1 Select the Best Location  
11.1.1 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.  
•
11.1.2 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 [piping length for  
additional gas], additional refrigerant should be  
added as shown in the table.  
Min.  
Max.  
Piping  
Length  
for add.  
gas (m)  
Pipingsize  
Horse  
Power  
(HP)  
Std.  
Max.  
Additional  
Refrigerant  
(g/m)  
Piping Piping  
Length Length  
Model  
Length Elevation  
(m)  
(m)  
Gas Liquid  
(m)  
(m)  
12.7 mm  
2.0HP  
20  
20  
3
25  
20  
30  
7.5  
7.5  
C18***  
(1/2")  
6.35 mm  
(1/4")  
5
15.88 mm  
(5/8")  
C24*** 2.5HP  
3
25  
Example: For C18***  
If the unit is installed at 10 m distance, the quantity of  
additional refrigerant should be 50 g….(10-7.5) m x 20  
g/m = 50 g.  
20  
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11.2 Indoor Unit  
11.2.1 How to Fix Installation Plate  
The mounting wall shall be strong and solid enough to prevent if from the vibration.  
The centre of installation plate should be at more than c at right and left of the wall.  
The distance from installation plate edge to ceiling should more than d.  
From installation plate left edge to unit’s left side is e.  
From installation plate right edge to unit’s right side is f.  
B
○
: For left side piping, piping connection for liquid should be about g from this line.  
: For left side piping, piping connection gas should be about h from this line.  
1
2
Mount the installation plate on the wall with 5 screws or more (at least 5 screws).  
(If mounting the unit on the concrete wall, consider using anchor bolts.)  
o
Always mount the installation plate horizontally by aligning the marking-off line with the thread and using  
a level gauge.  
Drill the piping plate hole with ø70mm hole-core drill.  
o
Putting measuring tape at position as shown in the diagram above.  
The hole centre is obtained by measuring the distance namely 128 mm for left and right hole  
respectively. Another method is intersection point of arrow mark extension.  
The meeting point of the extension arrow mark is the hole center position.  
Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor  
side. (refer to step 3)  
o
11.2.2 To Drill a Hole in the Wall and  
Install a Sleeve of Piping  
1
2
3
Insert the piping sleeve to the hole.  
Fix the busing to the sleeve.  
Cut the sleeve until it extrudes about 15mm  
from the wall.  
Caution  
When the wall is hollow, please be sure to use the sleeve for tube  
ass’y to prevent dangers caused by mice biting the connecting  
cable.  
4
Finish by sealing the sleeve with putty or  
caulking compound at the final stage.  
21  
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11.2.3 Indoor Unit Installation  
Caution  
!
Use shock absorber during pull out  
the piping to protect the intake grille  
from damage.  
!
Do not turn over the unit without it’s shock  
absorber during pull out the piping. Itmay  
cause intake grille damage  
Piping  
Piping  
Shock absorber  
Intake grille  
11.2.3.1  
For the right rear piping  
11.2.3.2  
For the right and right bottom  
piping  
11.2.3.3  
For the embedded piping  
(This can be used for left rear piping and bottom  
piping also.  
22  
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11.2.4 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 3 x 2.5mm2 (2.0 ~  
2.5HP) flexible cord, type designation 245 IEC  
57 or heavier cord. Do not use joint  
connection cable. Replace the wire if the  
existing wire (from concealed wiring, or  
otherwise) is too short.  
•
Secure the connecting cable onto the control board with the holder.  
This equipment must be properly earthed.  
•
•
Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.  
Earth wire shall be Yellow/Green (Y/G) in colour and longer than the other AC wires for safety reason.  
23  
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11.2.5 Wire Stripping And Connecting Requirement  
11.2.5.1  
Cutting and flaring the piping  
1
2
Please cut using pipe cutter and then remove the burrs.  
Remove the burrs by using reamer. If burrs are 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.  
24  
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11.3 Outdoor Unit  
11.3.1 Install the Outdoor Unit  
•
After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram.  
1
2
Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10mm).  
When installing at roof, please consider strong wind and earthquake.  
Please fasten the installation stand firmly with bolt or nails.  
A
B
Model  
C18***, C24***  
A
B
C
D
612.5 mm 131 mm 19 mm 383 mm  
11.3.2 Connecting the Piping  
11.3.2.1 Connecting the piping to indoor  
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.  
11.3.2.2  
Connecting the piping to outdoor  
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.  
CAUTION  
Do not overtighten, overtightening may cause gas leakage.  
Piping size  
Torque  
(6.35 mm) 1/4”  
(9.52 mm) 3/8”  
(12.7 mm) 1/2”  
(15.88 mm) 5/8”  
(19.05 mm) 3/4”  
[18 N•m (1.8 kgf.m)]  
[42 N•m (4.3 kgf.m)]  
[55 N•m (5.6 kgf.m)]  
[65 N•m (6.6 kgf.m)]  
[100 N•m (10.2 kgf.m)]  
Spanner  
or Wrench  
Torque  
wrench  
25  
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11.3.3 Evacuation of the Equipment  
FOR ENVIRONMENTAL PROTECTION, MANUFACTURER STRONGLY RECOMMENDS TO USE EVACUATION METHOD.  
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.  
o
Be sure to connect the end of the charging hose with the push pin to the service port.  
2
3
Connect the center hose of the charging set to a vacuum pump.  
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.  
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.  
4
Note: BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERENT GAS LEAKAGE.  
Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.  
Tighten the service port caps of the 3-way valve at a torque of 18 N•m with a torque wrench.  
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).  
5
6
7
8
Mount valve caps onto the 2-way valve and the 3-way valve.  
o
Be sure to check for gas leakage.  
CAUTION  
•
-
-
-
-
If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-01 MPa), in the step e above take the following measure:  
If the leak stops when the piping connections are tightened further, continue working from step e.  
If the leak does not stop when the connections are retightened, repair location of leak.  
Do not release refrigerant during piping work for installation and reinstallation.  
Take care of the liquid refrigerant, it may cause frostbite.  
26  
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11.3.4 Air Purging of the Piping and Indoor  
The remaining air in the Refrigerant cycle which contains moisture may cause malfunction on the compressor.  
1
2
3
Remove the caps from the 2-way and 3-way valves.  
Remove the service-port cap from the 3-way valves.  
To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten  
seconds, then close it.  
4
Check gas-leakage of the connecting portion of the pipings.  
o
For the left piping, refer to 4 (A).  
11.3.5 Connect the cable to the Outdoor 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 3 x 2.5mm2 (2.0 ~  
2.5HP) flexible cord, type designation 245 IEC  
57 or heavier cord. Do not use joint  
connection cable. Replace the wire if the  
existing wire (from concealed wiring, or  
otherwise) is too short.  
3
4
5
Secure the cable onto the control board with  
the holder.  
Attach the control board cover back to the  
original position with the screw.  
For wire stripping and connection requirement,  
refer to instruction g of the indoor unit.  
This equipment must be properly earthed.  
•
Earth wire shall be Yellow/Green (Y/G) in colour and longer than the other AC wires for safety reason.  
27  
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11.3.6 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.  
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 6mm or above.  
2
28  
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12. Operation Control  
12.1 Cooling Operation  
•
•
•
Cooling operation can be set using remote control.  
This operation is applied to cool down the room temperature to the setting temperature set on the remote control.  
The remote control setting temperature, which takes the reading of intake air temperature sensor, can be  
adjusted from 16°C to 30°C.  
•
During cooling operation, the compressor will stop and restart as shown in figure below:  
12.1.1 Cooling Operation Time Diagram  
29  
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12.2 Soft Dry Operation  
•
•
•
Soft Dry operation can be set using remote control.  
Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.  
This operation starts when the intake air temperature sensor reaches the setting temperature on the remote  
control.  
•
When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be  
turn “OFF” for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the  
setting temperature as shown in figure below.  
•
However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the  
indoor unit will start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON”  
point.  
12.2.1 Soft Dry Operation Time Diagram  
30  
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12.3 Automatic Operation  
•
•
•
Automatic operation can be set using remote control.  
This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature.  
After judged the temperature, the operation mode is determined by referring to the below standard.  
↑
23°C  
↓
Cooling Operation  
Soft Dry Operation  
Intake Air  
Temperature  
•
•
Then, the unit starts to operate at determined operation mode, until it is switched off using remote control, with  
the setting temperature as shown in table below.  
Setting Temperature (Standard)  
Cooling Operation  
Soft Dry Operation  
25°C  
22°C  
The setting temperature for all the operations can be changed one level up or one level down from the standard  
temperature as shown in table below by pressing the temperature up or temperature down button at remote  
control.  
Cooling  
27°C  
25°C  
Soft Dry  
24°C  
22°C  
Higher  
Standard  
Lower  
Æ
Æ
Æ
+2°C  
±0°C  
-2°C  
23°C  
20°C  
•
The operation mode judging temperature and standard setting temperature can be increased by 2°C  
permanently, by open the circuit of JX03 at indoor unit’s printed circuit board.  
Setting Temperature (Standard)  
↑
25°C  
↓
Cooling Operation  
Soft Dry Operation  
Cooling Operation  
Soft Dry Operation  
27°C  
24°C  
Intake Air  
Temperature  
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12.4 Indoor Fan Speed Control  
•
Indoor fan speed can be set using remote control.  
12.4.1 Fan Speed Rotation Chart  
Fan Speed (rpm)  
Speed  
CS-C18KKS  
CS-C24KKS  
1500  
1350  
1230  
1190  
1110  
970  
Shi  
Hi  
Me  
HLo  
CLo  
Lo-  
1370  
1200  
1110  
1080  
1020  
850  
SLo  
Qhi  
QMe  
QLo  
670  
750  
1110  
1020  
930  
1150  
1050  
960  
12.4.2 Automatic Fan Speed Control  
•
When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the  
table.  
o
o
Fan speed rotates in the range of Hi, Me and Lo-.  
Deodorizing Control will be activated.  
SHi  
Hi  
o
Me  
HLo  
CLo  
o
Lo-  
o
SLo  
Stop  
o
Hi  
Me  
Lo  
Manual  
Auto  
o
o
Normal  
Quiet  
o
QHi  
QMe  
QLo  
Hi-90  
Manual  
Me-90  
CLo-90  
Auto  
Hi-100 Me-100  
o
o
Manual  
Auto  
Manual  
Auto  
Manual  
Auto  
o
o
Powerful  
Normal  
Quiet  
o
o
o
o
o
o
o
o
32  
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•
Auto Fan Speed during cooling operation:  
1
2
Indoor fan will rotate alternately between off and on as shown in below diagram.  
At the beginning of each compressor starts operation, indoor fan speed increases gradually for deodorizing  
purpose.  
3
For the first time the compressor operates, indoor fan will be switched to Hi fan speed from Lo- after 70  
seconds from the start of compressor. This cause the room temperature to achieve the setting temperature  
quickly.  
4
5
6
During compressor stops, indoor fan will operate at Lo- for the beginning 20 seconds to prevent higher  
volume of refrigerant in liquid form returning to the compressor.  
After the compressor turned off for 3 minutes, indoor fan will start to operate at Lo- to circulate the air in the  
room. This is to obtain the actual reading of the intake air temperature.  
For the resume of compressor operation, indoor fan will operate at Me fan speed to provide comfort and  
lesser noise environment, after 70 seconds from the restarts of compressor.  
•
Auto Fan Speed during Soft Dry operation.  
1
2
Indoor fan will rotate alternately between off and Lo-.  
At the beginning of each compressor starts operation, indoor fan will increase fan speed gradually for  
deodorizing purpose.  
3
When compressor turned off for 6 minutes, indoor fan will start at Lo- to circulate the air in the room. This is  
to obtain the actual reading of intake air temperature.  
12.4.3 Manual Fan Speed Control  
•
•
Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control.  
There are 3 types of fan speed settings: Lo, Me, Hi.  
12.4.4 Indoor Fan Motor rpm Abnormal Control  
•
•
Immediate after the fan motor is started, rpm abnormal control is performed every second.  
During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continuously for 10 seconds, the fan motor  
error counter increased; fan motor is then stopped and restarted. If the fan motor error counter increased to 7,  
then air conditioner will stop operation.  
33  
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12.5 Outdoor Fan Speed Control  
•
•
There is only one speed for outdoor fan motor. (Applicable for CU-C18KK)  
There is 2 speeds for outdoor fan motor. Outdoor fan speed can be changed to Hi or Lo according to outdoor  
temperature. (Applicable for CU-C24KK).  
•
For Cooling and Soft Dry operation, when outdoor temperature reaches to 31°C (Hi-speed), 29°C (Lo-speed).  
(Applicable for CU-C24KK).  
•
•
When air conditioner is turned on, the compressor and the outdoor fan will operate simultaneously.  
Likewise, both compressor and outdoor fan will stop at the same time if the unit is turned off.  
12.6 Vertical Airflow Direction Control  
12.6.1 Auto Control  
•
When the vertical airflow direction is set to Auto using the remote control, the louver swings up and down as  
shown in the diagram.  
•
•
When stops operation using the remote control, the discharge vent is reset and stops at the closing position.  
During Cooling operation or Soft Dry operation, indoor fan motor may stop to rotate at certain periods. At that  
condition, the louver will stop swinging.  
Horizontal  
Upper limit/0°  
Closing  
position  
/ 148°  
Upper limit for cooling mode  
and soft dry mode/17°  
28°  
Swing up and down  
Lower limit for cooling mode and  
soft dry mode/45°  
12.6.2 Manual Control  
•
When the vertical airflow direction is set to Manual using the remote control, the automatic airflow is released and  
the airflow direction louver move up and down in the range shown in the diagram.  
•
•
The louver can be adjusted by pressing the button to the desired louver position.  
When stop operation using the remote control, the discharge vent is reset, and stop at the closing position.  
Horizontal  
Upper limit / 0°  
17°  
Closing  
position  
/ 148°  
Upper limit for  
cooling mode and  
soft dry mode  
22°  
28°  
33°  
Lower limit for cooling mode  
and soft dry mode  
39°  
34  
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12.7 Horizontal Airflow Direction Control  
12.7.1 Auto Control  
•
When the horizontal airflow is set to Auto using the remote control, the vanes swings left and right as shown in  
the diagram.  
•
•
When stopped with remote control, the discharge vanes are reset and stop at the reset position.  
During Cooling operation or Soft Dry operation, indoor fan motor may stop to rotate at certain periods. At that  
condition, the vane will stop swinging and rest at 22° angle.  
12.7.2 Manual Control  
•
When the horizontal airflow direction is set to Manual using the remote control, the automatic airflow is released  
and the airflow direction vane move left and right in the range shown in the diagram.  
The louver can be adjusted by pressing the button to the desired vane position.  
•
•
When stopped with remote control, the vanes is reset and stopped at reset position.  
12.8 Powerful Operation  
•
•
To achieve the setting temperature quickly.  
When powerful operation is set, the setting temperature will be automatically decreased 3°C internally against  
the present setting temperature (Lower temperature limit: 16°C).  
This operation automatically running under Shi fan speed (Cooling).  
Vertical Airflow Direction:  
•
•
o
o
In “Manual” setting, the vane will automatically shift down 10° lower than previous setting.  
In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10°  
downward.  
•
Powerful operation stops when:  
o
o
o
o
o
Quiet/Powerful button is pressed again  
Powerful operation has operate for 15 minutes  
Stopped by OFF/ON operation button.  
Timer OFF activates  
Operation mode is changed  
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12.9 Quiet Operation  
(For Cooling Operation or cooling region of Soft Dry Operation)  
•
•
To provide quiet cooling operation condition.  
Once the Quiet Operation is set at the remote control, the Quiet LED illuminated. The sound level will reduce  
around 2dB(A) for Lo fan speed or 3dB(A) for Hi/Me fan speed against the present operation sound level.  
Dew formation become severe at Quite Lo Cool, therefore Quiet Lo cool operated only 1 hour 30 minutes (1 hour  
QLo, 30 minutes QLo + 50 rpm).  
•
•
Manual Airflow Direction:  
o
RPM control during Lo cool  
o
RPM control during Hi & Me cool  
•
Auto Fan Speed  
•
Quiet operation stops when:  
o
o
o
o
o
Quiet button is pressed again.  
Stopped by OFF/ON operation button.  
Timer OFF activates.  
Operation mode button is changed.  
Powerful button is pressed.  
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12.10 Timer Control  
12.10.1 ON Timer  
•
When the ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so  
that the room will reach nearly to the set temperature by the set time.  
•
•
For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time.  
For Automatic operation, the indoor fan will operate at SLo speed for 20 seconds, 15 minutes before the set time  
to detect the intake air temperature to determine the operation mode. The power LED will blink.  
12.10.2 OFF Timer  
•
When the OFF Timer is set using the remote control, the unit will stop operate according to the desired setting.  
Notes:  
1
2
3
4
By pressing ON/OFF operation button, the ON Timer or OFF Timer will not be cancel.  
To cancel the previous timer setting, press CANCEL button.  
To activate the previous timer setting, press SET button.  
If main power supply is switched off, the Timer setting will be cancel.  
12.11 Random Auto Restart Control  
•
If there is a power failure during operation, the air conditioner will automatically restart after 3 to 4 minutes when  
the power is resumed.  
•
•
It will start with previous operation mode and airflow direction.  
If there are more than one air conditioner unit in operation and power failure occur, restart time for each unit to  
operate will be decided randomly using 4 parameters:- intake air temperature, fan speed and air swing louver  
position.  
•
This Random Auto Restart Control is not available when Timer is set.  
12.12 Remote Control Signal Receiving Sound  
•
•
Short beep sound will be heard when turn ON the air conditioner or enabling other operations.  
Long beep sound will be heard when turn OFF the air conditioner or disabling other operations.  
37  
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12.13 Patrol Operation  
•
•
To monitor air dirtiness level by using Patrol sensor and to maintain air freshness by activates e-ion operation  
Patrol operation starts condition  
o
o
o
When the unit operation is started with “OFF/ON” button  
When the unit stops, “Patrol” operation is selected, Patrol individual operation will start.  
During cooling only operation, “Patrol” operation is selected.  
•
•
Patrol operation stops condition (when any of the following condition is fulfilled):  
o
o
o
When “OFF/ON” button is selected.  
During any operation with Patrol, “PATROL/e-ion” button is pressed.  
When OFF Timer activates.  
To disable the Patrol Operation during unit starts (default) with “OFF/ON” button  
o
Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition to  
enter internal setting mode.  
o
o
Press “Timer Decrement" button to select “Pt dFLt”.  
Press “Timer Set” button to toggle Patrol operation default OFF/ON.  
ƒ
ƒ
Long "beep": Turn OFF Patrol operation default.  
Short "beep": Turn ON Patrol operation default.  
Press continously for 15s  
SET  
SET  
Transmit Patrol default OFF/ON code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
SET  
SET  
Transmit Patrol demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit ECO demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit check code  
(Buzzer:Short Beep)  
38  
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•
Patrol Sensor Control  
o
o
o
o
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 Clean, Patrol LED turns blue color.  
After that, Patrol 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 level, based on the Air Dirtiness Value:  
ƒ
ƒ
ƒ
Air Dirtiness level 0: Clean  
Air Dirtiness level 1: Moderate  
Air Dirtiness level 2: Contaminated – Patrol LED = red color  
– Patrol LED = blue color  
– Patrol LED = orange color  
Air Quality Worsen  
G3  
Air Dirtiness Level 0  
Air Dirtiness Level 1  
G1  
G2  
G4  
Air Dirtiness Level 2  
Air Quality Improve  
•
•
Dirtiness level sensitivity adjustment  
It is possible to change the Patrol sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted  
accordingly:  
1
2
Press and release “SET” button.  
Press Timer ▲ / Timer ▼ button to select sensitivity.  
(Air 1 “Low Sensitivity” ↔ Air 2 “Standard” (Default) ↔ Air 3 “High Sensitivity”)  
Confirm setting by pressing “Timer Set” button. LCD returned to original display after 2 seconds.  
LCD returned to original display if remote control does not operate for 30 seconds  
3
4
e-ion Control  
o
e-ion operation starts condition  
ƒ
ƒ
ƒ
When dirtiness at level 2 (Patrol LED turns red).  
2 minutes after stabilization time (Patrol LED turns red).  
4 hours at level 0 (Patrol LED turns red).  
o
e-ion operation time  
ƒ
ƒ
If dirtiness level improves from level 2 to level 1 (Patrol LED from red to orange), the unit carries out level  
change after 60 seconds.  
When dirtiness level returns to level 0 (Patrol LED turns blue) continuously for 11 minutes or more, e-ion  
operation stops.  
•
Dirtiness Level and fan speed  
o
When e-ion operation starts, the fan speed increases based on dirtiness level:  
rpm shift  
Combine operation  
Patrol individual  
operation  
Dirtiness level  
Auto  
No change  
+ 20  
Manual  
Dirtiness level 0  
Dirtiness level 1  
Dirtiness level 2  
No change  
Me -  
No change  
+1 fan tap (max - Hi)  
+2 fan tap (max - Hi)  
e-ion ON  
Me  
+ 40  
o
Indoor Fan Control  
ƒ
ƒ
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.  
ƒ
During Patrol individual operation if e-ion stops, Indoor Fan stop operation.  
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•
•
Airflow direction (Horizontal, Vertical) Control  
o
o
o
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.  
LED display (Applicable to all models except KKD models)  
o
o
When Patrol operation is selected, Patrol LED illuminates.  
During Patrol individual operation, only Patrol LED illuminates. When e-ion air purifying operation starts  
based on dirtiness level, Power LED, Patrol LED and e-ion LED illuminates.  
PATROL LED  
ORANGE  
OFF  
E-ION  
BLUE  
-
TIMER  
ORANGE  
-
No Description  
BLUE  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
RED  
OFF  
Blinking  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
1
2
3
4
5
6
7
When patrol function is not selected  
During gas sensor error detection control  
During E-ion abnormal discharge error  
During E-ion breakdown error  
During Test Mode  
OFF  
OFF  
Blinking  
Blinking  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
Blinking  
OFF  
OFF  
During stop  
OFF  
OFF  
2 minutes gas sensor initial stabilization time (Level 0)  
a. Dirtiness level 0*  
OFF  
OFF  
ON  
OFF  
OFF  
b. Dirtiness level 1  
During operation  
During patrol  
OFF  
OFF  
OFF  
ON  
OFF  
8
c. Dirtiness level 1*  
ON  
OFF  
d. Dirtiness level 2  
OFF  
ON  
OFF  
•
•
Remote Control Receiving Sound  
o
o
o
o
Normal Operation  
Patrol Mode  
Patrol Mode  
Stop  
Î Patrol Mode  
Î Stop  
Î Normal Operation  
Î Patrol  
: Beep  
: Long Beep  
: Beep  
: Beep  
Timer Control  
o
When ON timer activates when unit stops, previous operation resumes and restored last saved Patrol  
operation status.  
o
o
When ON timer activates during any operation, no change and carry on current operation.  
When OFF timer activates during any operation, all operation stops and the latest Patrol operation status is  
saved.  
•
Power Failure Control  
o
During Patrol individual operation, if power failure occurs, after power resumes, Patrol individual operation  
resumes immediately.  
o
During combination operation, if power failure occurs, after power resumes combination operation resume  
immediately.  
40  
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•
Patrol Operation Demo Mode  
o Patrol Operation Demo Mode start condition  
ƒ
Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition  
to enter internal setting mode.  
ƒ
ƒ
Press “Timer Decrement" button to select “Pt demo”.  
Press “Timer Set” button to toggle Patrol operation demo mode.  
•
•
Long "beep": Turn OFF Patrol operation demo mode.  
Short "beep": Turn ON Patrol operation demo mode.  
Press continously for 15s  
SET  
SET  
Transmit Patrol default OFF/ON code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
SET  
SET  
Transmit Patrol demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit ECO demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit check code  
(Buzzer:Short Beep)  
o
The Patrol indicator change color every 10 seconds follows the pattern below for demo purpose:  
(10 seconds)  
(10 seconds)  
(10 seconds)  
(10 seconds)  
(10 seconds)  
BLUE  
ORANGE  
RED  
o
o
During demo, all operation stops, remote control buttons and auto OFF/ON button are ignored.  
Patrol Operation Demo Mode stop condition  
ƒ
Power supply reset.  
41  
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12.14  
E-ion operation  
•
This operation provides clean air by producing negative ions to attract dust captured at the positively charged  
active e-ion filters.  
•
e-ion operation start condition  
o
During unit running at any operation mode, if “e-ion” operation is selected, combination operation (operation  
mode + e-ion operation) starts.  
o
During unit is OFF, if “e-ion” operation is selected, e-ion individual operation starts.  
•
•
e-ion operation stop condition  
o
o
o
When “OFF/ON” button is pressed to stop the operation.  
When “PATROL/e-ion” button is pressed.  
When OFF Timer activates.  
e-ion operation pause condition  
o
When indoor fan stop (during deice, odor cut control, thermostat off, etc.). e-ion operation resume after  
indoor fan restarts.  
o
When indoor intake temperature ≥ 40°C. e-ion operation resume after indoor intake temperature < 40°C  
continuously for 30 minutes.  
•
Indoor fan control  
o
o
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 from SHi to Hi after 4 hours of operation.  
•
•
Airflow direction control  
o
During any operation mode combines with e-ion operation, airflow direction follows respective operation  
mode.  
o
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.  
Timer control  
o
When ON timer activates when unit stops, previous operation resumes and restored last saved e-ion  
operation status.  
o
o
When ON timer activates during any operation, no change and carry on current operation.  
When OFF timer activates during any operation, all operation stops and the latest e-ion operation status is  
saved.  
•
•
Indicator  
o
When e-ion operation starts, e-ion indicator ON.  
Remote Control Receiving Sound  
o
o
o
o
Normal Operation  
e-ion Operation  
Stop  
Î e-ion Operation  
Î Normal Operation  
Î e-ion individual Operation  
Î Stop  
: Beep  
: Beep  
: Beep  
: Long Beep  
e-ion individual Operation  
•
Power failure  
o
o
o
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.  
e-ion operation status is not memorized after OFF the unit. After OFF, when the operation is ON again, air  
conditioner operates without e-ion operation.  
42  
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•
e-ion Check Mode  
o
o
e-ion abnormality check mode  
Purpose is to improve sensor serviceability when sensor is malfunction.  
(1) Control starting condition  
When all of the conditions are formed  
ƒ
ƒ
ƒ
Not in Patrol Demo mode.  
e-ion operation ON.  
When e-ion check mode signal is received; the procedure of selection is as shown:  
•
•
•
Press “Set” button continuously for 15 seconds by using pointer to enter internal setting mode.  
Press “Timer Decrement" button to select “CHC”.  
Confirm setting by pressing “Timer Set” button, a “beep” sound will be heard.  
Press continously for 15s  
SET  
SET  
Transmit Patrol default OFF/ON code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit Patrol demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit ECO demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit check code  
(Buzzer:Short Beep)  
o
If abnormal discharge is detected at filter (short-circuited) due to water or dust adhesion, etc., the e-ion  
indicator blinks immediately.  
43  
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•
Error Detection Control  
When e-ion indicator blink, it indicates error listed below:  
o
Active e-ion Air Purifying system PCB main connector open:  
ƒ
Judgment Method  
•
During e-ion operation (include during Patrol operation), Active e-ion Air Purifying system main  
connector to PCB is opened.  
ƒ
Troubleshooting Methods  
Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.  
•
o
Abnormal Discharge error:  
ƒ
Judgment Method  
•
•
•
•
During e-ion operation, feedback voltage is-Lo (at microcontroller) is detected, it is judged abnormal  
discharge and stops power supplies to the Active e-ion Air Purifying system.  
Abnormal discharge is caused by ionizer or filter’s high voltage power supply short-circuits due to  
water or dust adhesion, and so forth.  
When abnormal discharge occurred, every 30 minutes the unit supplies power to the Active e-ion Air  
Purifying system.  
When abnormal discharge occurs for 24 times continuously, e-ion indicator blinks (not applicable for  
e-ion Check Mode, where the error will shows immediately despite the 24 times counter)  
ƒ
ƒ
Troubleshooting Method  
•
Press “PATROL/e-ion” button or “OFF/ON” button to stop the operation and check the Active e-ion  
Air Purifying system main connector to PCB.  
•
•
After that, press “e-ion” button again to confirm the e-ion indicator not blinking.  
The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.  
Error Reset Method  
•
•
•
•
Press “OFF/ON” button to OFF the operation.  
Press AUTO OFF/ON button at indoor unit to OFF the operation.  
OFF Timer activates  
Power supply reset  
o
Active e-ion Air Purifying system breakdown error:  
ƒ
Judgment Method  
•
When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, Active e-ion Air  
Purifying system breakdown error shows immediately.  
•
•
It is due to indoor PCB or filter’s high voltage power supply damage.  
Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.  
ƒ
Troubleshooting Method  
•
•
•
Press “PATROL/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 Active e-ion Air Purifying system during e-ion operation, e-ion  
indicator and Timer indicator stop blinking.  
44  
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12.15 ECO Patrol Operation  
•
A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine  
the presence or absence of human and its activity level. Human detection area is shown in figure below:  
•
ECO Patrol operation – Human presence/absence detection outlined flow  
Process infrared sensor output signal  
Human detection (movement) every 3 seconds.  
▼
Human detection records  
Records human detection (movement) result for 30 seconds and determine its activity level i.e. Hi/Lo.  
▼
Presence / absence detection  
Compares current and previous human detection result every 30 seconds to determine the presence  
or absence of human.  
▼
Presence / absence determination  
Based on human presence / absence detection, if human presence detection showed within 30  
minutes, it is recognised that human is present. If human absence detection showed continuously for  
more than 30 minutes, it is recognised that no human is present.  
•
ECO Patrol Sensor abnormality detection  
(1) Connnector pulled out (disconnected), Wire cut Abnormality (Fix Output at Hi)  
c Abnormal judgment start condition.  
Start from ECO Patrol Sensor power ON, and end after 30 seconds.  
d Control content.  
Judge ECO Patrol Sensor power level every 100ms.  
e Abnormal Judgment condition.  
When ECO Patrol Sensor has continues for 25 seconds Hi level.  
(2) Circuit Abnormal (Fix Output Lo)  
c Abnormal judgment start condition.  
After ECO Patrol Sensor unit power ON, and after pressed 70 seconds.  
d Control content.  
Judge ECO Patrol Sensor power level every 100ms.  
e Abnormal Judgment condition.  
When ECO Patrol Sensor has continues at Lo level for 25 seconds.  
(3) Abnormal treatment  
Any one of the above self-diagnosis result is abnormal  
• Abnormal counter +1 and ECO Patrol Sensor power supply OFF.  
• After ECO Patrol Sensor unit power is OFF for 5 seconds, Retry the ECO Patrol operation.  
• When Abnormal counter reach 4 counts, ECO Patrol sensor abnormality is confirmed.  
(Abnormal counter is cleared when sensor power ON and maintain normal for 120 seconds and above or  
Clear Anormal counter by power reset)  
• Save ECO Patrol Sensor Abnormality (no Timer LED blinking).  
• ECO Patrol Sensor operation OFF, but ECO Patrol LED maintain ON.  
• The unit still operate as normal.  
• Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote  
control is pressed.  
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•
ECO Patrol Demo Mode  
ƒ
Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition  
to enter internal setting mode.  
ƒ
ƒ
Press “Timer Decrement" button to select “EC demo”.  
Press “Timer Set” button to toggle ECO Patrol Demo mode.  
•
•
Short "beep": Turn ON ECO Patrol Demo mode.  
Long "beep": Turn OFF ECO Patrol Demo mode.  
Press continously for 15s  
SET  
SET  
Transmit Patrol default OFF/ON code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
SET  
SET  
Transmit Patrol demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit ECO demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
Transmit check code  
(Buzzer:Short Beep)  
Control details:  
•
•
•
•
During ECO Patrol Demo mode, operation LED ON and horizontal vane will set to Auto Swing.  
When Hi activity judge, Fan speed change to Hi Fan and ECO Patrol LED ON.  
When Lo activity judge, Fan speed change to Lo Fan and ECO Patrol LED OFF.  
No setting temperature adjustment.  
46  
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•
•
•
During ECO Patrol operation, the internal setting temperature and fan speed are adjusted in order to provide  
comfort and energy saving.  
ECO Patrol Start condition.  
ƒ
Press ECO Patrol button to select ECO1 and ECO2.  
ECO Patrol Stop condition.  
ƒ
ƒ
ƒ
ƒ
ƒ
Press ECO Patrol button again.  
OFF Timer activates.  
Press OFF/ON button to turn off the air conditioner.  
Press AUTO OFF/ON button to turn off the air conditioner.  
Press POWERFUL/QUIET button.  
•
ECO Patrol operation could ON when any of the following conditions is fulfilled:  
ƒ
ƒ
During forced cooling or forced heating operation.  
During e-ion or individual patrol operation.  
•
•
Power Failure  
ƒ
ECO Patrol operation will be resuming after recovered from power failure.  
Timer Operation  
ƒ
When unit is turn on by ON Timer and ECO Patrol operation is ON during previous operation before OFF,  
ECO Patrol operation will not be ON automatically.  
ƒ
When unit is turn on by ON Timer and ECO Patrol operation is OFF during previous operation before  
OFF, ECO Patrol operation will not be ON automatically.  
•
•
Other Information  
ƒ
ƒ
ECO Patrol, Powerful and Quiet cannot be operated at the same time.  
ECO Patrol sensor initialized time is 70 seconds from power supplied to ECO Patrol sensor, or 70  
seconds from the operation start.  
ECO 1 Operation  
Activity Level  
Low  
High  
None  
+2oC  
Set  
Temperature  
-1o  
C
Set Speed  
Med Fan  
Set Speed  
+1tap Up  
Fan Speed  
•
ECO 2 Operation  
Activity Level  
Low  
High  
None  
+3o  
C
Set  
Temperature  
-1o  
C
Set Speed  
Med Fan  
Set Speed  
+1tap Up  
Fan Speed  
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•
•
ECO Patrol Sensor abnormality check mode  
Purpose is to improve sensor serviceability when sensor is malfunction.  
(1) Control starting condition  
When all of the conditions are formed  
ƒ
ƒ
ƒ
Not in ECO Patrol Demo mode.  
ECO Patrol mode ON.  
When ECO Patrol sensor check mode signal is received; the procedure of selection is as shown:  
•
•
•
Press “Set” button continuously for 15 seconds by using pointer to enter internal setting mode.  
Press “Timer Decrement" button to select “CHC”.  
Confirm setting by pressing “Timer Set” button, a “beep” sound will be heard.  
Press continously for 15s  
SET  
SET  
Transmit Patrol default OFF/ON code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit Patrol demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit ECO demo code  
(Buzzer: OFF:Long Beep, ON:Short Beep)  
SET  
Transmit check code  
(Buzzer:Short Beep)  
(2) Control ending condition.  
When any of the conditions are formed  
ƒ
ƒ
ƒ
Operation stops.  
“Timer Cancel” button pressed.  
When ECO Patrol sensor check mode signal is not received for more than 30 seconds.  
(3) Control content.  
ƒ
During ECO Patrol mode ON, when check signal is received, if (1) or (2) is detected.  
ECO Patrol LED start blinking (ECO Patrol sensor operation stops but the unit operates as normal) and  
ECO Patrol sensor abnormal code is memorized (the 4 times counter is ignored)  
The blinking of ECO Patrol LED can be cancelled by pressing ECO Patrol button again.  
Sensor error counter can be cleared only after power supply reset or “AC Reset” button on remote  
control is pressed.  
ƒ
ƒ
However, if there is no ECO Patrol sensor abnormally happen, ECO Patrol sensor operation will continues as normal.  
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13. Protection Control  
13.1 Restart Control (Time Delay Safety Control)  
•
When the thermo-off temperature (temperature which compressor stops to operate) is reach during:-  
o
o
Cooling operation – the compressor stops for 3 minutes (minimum) before resume operation.  
Soft Dry operation – the compressor stops for 6 minutes (minimum) before resume operation.  
•
•
If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the  
moment operation stop, although the unit is turn on again within the period.  
This phenomenon is to balance the pressure inside the refrigerant cycle.  
13.2 7 Minutes Time Save Control  
•
The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls  
between the compressor ON temperature (A) and compressor OFF temperature (B) during the period.  
This phenomenon is to reduce the built up humidity inside a room.  
•
13.3 60 Seconds Forced Operation  
•
Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation  
although the intake air temperature has reached the thermo-off temperature. However, forced stop by pressing  
the OFF/ON operation button at the remote control is permitted.  
•
The reason for the compressor to force operate at the minimum 60 seconds is to allow the refrigerant oil run in a  
full cycle and return back to the outdoor unit.  
13.4 Starting Current Control  
•
When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor  
will start to operate at 1.6 seconds later.  
•
The reason of the difference is to reduce the starting current flow.  
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13.5 Freeze Prevention Control  
•
To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to  
compressor.  
•
This control will activate when temperature of indoor heat exchanger falls below 2°C continuously for more than 4  
minutes and compressor turn off.  
Indoor Heat  
Exchanger  
Temperature  
(°C)  
10  
2
Recovery  
4 min  
Compressor OFF  
•
•
Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery).  
Restart control (Time Delay Safety Control) will be applied in this control if the recovery time is too short.  
13.6 Compressor Reverse Rotation Protection Control  
•
If the compressor is operating continuously for 5 minutes or longer and the temperature difference between  
intake air and indoor heat exchanger is 2.5°C or less for continuously 2 minutes, compressor will stop and restart  
automatically.  
•
Time Delay Safety Control is activated before the compressor restart.  
Compressor starts for ≥ 5 minutes  
Compressor  
OFF  
Compressor  
restart  
▲T ≤ 2.5°C for 2 minutes  
▲ T = Intake air temperature – Indoor heat exchanger temperature  
•
•
•
This is to prevent compressor from rotate reversely when there is an instantaneous power failure.  
If this condition happens continuously for 5 times within 50 minutes, unit will turn OFF with TIMER LED blinks.  
The 5 Times counter can be reset when either one of the following condition happen:  
o
o
o
Unit is OFF by remote control or AUTO OFF/ON button.  
Indoor intake temperature – Indoor piping temperature > 5°C for one minute or more.  
Operation mode change.  
•
•
The unit could be ON by pressing OFF/ON button at remote control but the TIMER LED will continue blinking.  
TIMER LED blinking will be reset if:  
o
o
Indoor intake temperature – Indoor piping temperature > 5°C for one minute or more.  
Power supply reset.  
13.7 Dew Prevention Control  
•
•
To prevent dew formation at indoor unit discharge area.  
This control starts if:  
o
o
o
o
o
Cooling mode or Quiet mode is activated.  
Remote Control setting temperature is less than 25°C.  
Fan speed is at CLo or QLo.  
Room temperature is constant (±1°C) for 30 minutes.  
Compressor is continuously running.  
•
•
Fan speed will be adjusted accordingly in this control.  
Fan sped will be increased slowly if the unit is in quiet mode and Lo fan speed.  
Dew prevention stop condition.  
o
o
o
o
Remote control setting temperature is more than 25°C.  
Fan speed is not at Lo or QLo.  
Select Powerful operation.  
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14. Servicing Mode  
14.1 Auto OFF/ON Button  
Auto OFF/ON  
Auto OFF/ON  
Auto OFF/ON  
Button Pressed  
Button Pressed  
Button Pressed  
5 sec  
5 sec  
Various Setting Mode  
Auto Operation  
Test Run Operation  
(Forced Cooling Operation)  
Stop  
Stop  
1
2
3
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.  
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 be heard at the fifth seconds, in order to identify the starting of this operation.  
VARIOUS SETTING MODE  
The Various Setting Mode will be activated if (within 20 seconds of Test Run Operation) the Auto OFF/ON  
button is pressed for more than 5 seconds. 2 “beep” sounds will be heard to identify the starting of this  
operation.  
Under Various Setting Mode, user could perform the following operation:  
i. Press Auto OFF/ON button to toggle remote control receiving sound.  
- Short “beep”: Turn ON remote control receiving sound.  
- Long “beep”: Turn OFF 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.  
ii. Remote Control Number Switch.  
- There are 4 types of remote control transmission code could be selected and stored in EEPROM of  
indoor unit. The indoor unit will only operate when received signal with same transmission code from  
remote control. This could prevent signal interference when there are 2 or more indoor units installed  
nearby together.  
- To change remote control transmission code, short or open jumpers at the remote control printed circuit  
board.  
Remote Control Printed Circuit Board  
J - A  
Jumper A (J-A)  
Short  
Jumper B (J-B)  
Open  
Remote Control No.  
A (Default)  
J - B  
J_B  
Open  
Short  
Open  
Open  
Short  
Short  
B
C
D
- During Various Setting Mode, press any button at remote control to transmit and store the desired  
transmission code to the EEPROM.  
- After signal is received, the Various Setting Mode is cancelled and return to normal operation.  
- If there is no code is transmitted of Auto OFF/ON button is not pressed within 20 seconds, the  
Various Setting Mode will be cancelled.  
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14.2 Remote Control Button  
14.2.1 SET Button  
•
•
To check current remote control transmission code and store the transmission code to EEPROM:  
o
o
Press “Set” button for more than 10 seconds  
Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code change.  
To change the air quality sensor:  
o
o
Press and release by using pointer  
Press the Timer Decrement button to select sensitivity:  
1. Low sensitivity  
2. Standard (Default)  
3. Hi sensitivity  
o
o
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.  
14.2.2 CLOCK Button  
•
To change the remote control time format:  
Press for more than 5 seconds  
o
14.2.3 RESET (RC) Button  
•
To clear and restore the remote control setting to factory default.  
Press once to clear the memory  
o
14.2.4 TIMER ▲  
•
To change indoor unit indicators’ intensity:  
Press continuously for 5 seconds.  
o
14.2.5 TIMER ▼  
•
To change remote control display from Degree Celsius (°C) to Degree Fahrenheit (°F)  
Press continuously for 10 seconds.  
o
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15. Troubleshooting Guide  
15.1 Refrigeration cycle system  
Normal Pressure and Outlet Air Temperature (Standard)  
In order to diagnose malfunctions, ensure the air conditioner is free  
from 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 to the right.  
Gas Pressure  
Mpa  
Outlet air  
Temperature  
(°C)  
(kg/cm2G)  
Cooling Mode  
0.4 ~ 0.6 (4 ~ 6)  
12 ~ 16  
Condition: Indoor fan speed = High  
Outdoor temperature = 35°C  
Different in the intake  
•
Measuring the air  
temperature different  
and outlet  
air temperatures  
Normal  
More than 8°C  
(15 minutes after an  
operation is started)  
Less than 8°C at the cooling mode  
Higher than specified  
•
Measuring electric current  
during operation  
Value of electric current  
during operation  
Dusty condenser  
preventing heat radiation  
Excessive amount  
of refrigerant  
Lower than specified  
Cooling  
Mode  
High  
Low  
Gas side  
pressure  
•
Measuring gas side  
pressure  
Inefficient compressor  
Insufficient refrigerant  
Low  
Clogged strainer or  
capillary cube  
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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  
Electric current during operation  
Insufficient refrigerant  
(gas leakage)  
Ô
Ô
Ô
Ò
Ò
Ô
Ô
Ô
Ò
Ô
Ô
Ô
Ô
Ò
Ô
Clogged capillary tube or  
strainer  
Short circuit in the indoor unit  
Heat radiation deficiency  
of the outdoor unit  
Inefficient compression  
• Carry out the measurement of pressure, electric current, and temperature fifteen minutes after an operation is started.  
15.1.2 Diagnosis methods of a malfunction of a compressor  
Nature of fault  
Symptom  
• Electric current during operation becomes approximately 20% lower than the normal value.  
• The discharge tube of the compressor becomes abnormally hot (normally 70°C to 90°C).  
• The different between high pressure and low pressure becomes almost zero.  
Insufficient compressing of a compressor  
• Electric current reaches a high level abnormally, and the value exceeds the limit of an  
ammeter. In some cases, a breaker turns off.  
Locked compressor  
• The compressor has a humming sound.  
54  
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16. Disassembly and Assembly Instructions  
WARNING  
High Voltage is 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  
Figure 1  
16.1.2 To remove horizontal vane  
Figure 2  
55  
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16.1.3 To remove power electronic controller  
Figure 3  
Figure 4  
Figure 5  
Figure 6  
56  
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16.1.4 To remove discharge grille  
Figure 7  
16.1.5 To remove control board  
Figure 8  
16.1.6 To remove cross flow fan and indoor fan motor  
Figure 9  
57  
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Figure 10  
Figure 11  
Figure 12  
58  
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17. Technical Data  
17.1 Operation Characteristics  
17.1.1 CS-C18KKS CU-C18KKS  
•
Cooling Characteristic  
o
o
o
Room temperature:  
Operation condition:  
Piping length:  
27°C (DBT), 19°C (WBT)  
High fan speed  
5.0m  
220V  
220V  
220V  
11.00  
10.50  
10.00  
9.50  
9.00  
8.50  
8.00  
7.50  
7.00  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
0.620  
0.590  
0.560  
0.530  
0.500  
0.470  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
5.60  
5.30  
5.00  
4.70  
4.40  
4.10  
3.80  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
220V  
16.6  
16.1  
15.6  
15.1  
14.6  
14.1  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
59  
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•
Piping Length Characteristic  
o
o
o
Outdoor temperature: 35°C (DBT), 24°C (WBT)  
Operation condition:  
Piping length:  
High fan speed  
5.0m  
220V  
7.90  
7.80  
7.70  
7.60  
7.50  
7.40  
7.30  
7.20  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
0.500  
0.490  
0.480  
0.470  
0.460  
0.450  
0.440  
0.430  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
5.20  
5.10  
5.00  
4.90  
4.80  
4.70  
4.60  
4.50  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
15.3  
15.2  
15.1  
15.0  
14.9  
14.8  
14.7  
14.6  
14.5  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
60  
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17.1.2 CS-C24KKS CU-C24KKS  
•
Cooling Characteristic  
o
o
o
Room temperature:  
Operation condition:  
Piping length:  
27°C (DBT), 19°C (WBT)  
High fan speed  
5.0m  
220V  
220V  
220V  
220V  
17.00  
16.00  
15.00  
14.00  
13.00  
12.00  
11.00  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
0.550  
0.520  
0.490  
0.460  
0.430  
0.400  
30  
30  
30  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
7.00  
6.70  
6.40  
6.10  
5.80  
5.50  
5.20  
4.90  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
16.0  
15.5  
15.0  
14.5  
14.0  
13.5  
13.0  
35  
40  
45  
50  
55  
Outdoor Temperature (ºC)  
61  
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•
Piping Length Characteristic  
o
o
o
Outdoor temperature: 35°C (DBT), 24°C (WBT)  
Operation condition:  
Piping length:  
High fan speed  
5.0m  
220V  
12.20  
12.00  
11.80  
11.60  
11.40  
11.20  
11.00  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
0.430  
0.420  
0.410  
0.400  
0.390  
0.380  
0.370  
0.360  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
6.60  
6.50  
6.40  
6.30  
6.20  
6.10  
6.00  
5.90  
5.80  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
220V  
14.5  
14.3  
14.1  
13.9  
13.7  
13.5  
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
Piping Length (m)  
62  
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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.  
63  
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REF.  
NO.  
PART NAME & DESCRIPTION  
CHASSY COMPLETE  
QTY  
CS-C18KKS  
CS-C24KKS  
REMARK  
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CWD50C1654  
L6CBYYYL0037  
CWH02C1077  
CWH64K007  
CWH551146  
CWH94C0028  
CWB30C3126  
CWT251026  
CWT251062  
CWD93C1090  
CWH32143  
←
FAN MOTOR  
L6CBYYYL0039  
O
3
CROSS FLOW FAN COMPLETE  
BEARING ASS’Y  
←
4
←
5
SCREW - CROSS FLOW FAN  
ION GENERATOR  
←
6
←
7
EVAPORATOR  
CWB30C3268  
8
FLARE NUT (LIQUID)  
←
9
FLARE NUT (GAS)  
CWT251036  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
E-ION AIR PURIFYING SYSTEM  
HOLDER SENSOR  
←
←
BACK COVER CHASSIS  
CWD933031  
CWH102370  
CWA28C2393  
CWA73C4492  
CWA745303  
CWA745348  
CWA745820  
CWA745288  
CWD933209  
CWD933022  
CWD933021  
CWA50C2401  
CWA50C2709  
←
CONTROL BOARD CASING  
TERMINAL BOARD COMPLETE  
ELECTRONIC CONTROLLER - MAIN  
ELECTRONIC CONTROLLER - POWER  
ELECTRONIC CONTROLLER-HVU  
ELECTRONIC CONTROLLER-INDICATOR  
ELECTRONIC CONTROLLER-RECEIVER  
COVER FOR RECEIVER(BOTTOM)  
COVER FOR RECEIVER(UPPER)  
INDICATOR HOLDER  
←
CWA28C2394  
O
O
O
O
O
O
CWA73C4493  
CWA745620  
←
←
←
←
←
←
←
←
SENSOR COMPLETE  
O
O
SENSOR COMPLETE(ECO)  
ELECTRONIC CONTROLLER (ECO  
SENSOR)  
ELECTRONIC CONTROLLER  
(COMPARATOR)  
25  
26  
1
1
CWA745791  
CWA745790  
←
←
O
O
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
LEAD WIRE - PCB ECO  
COVER FOR PCB ECO(BOTTOM)  
COVER FOR PCB ECO(UPPER)  
DISCHARGE GRILLE COMPLETE  
VERTICAL VANE  
1
1
1
1
15  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
3
CWA67C8484  
CWD933193  
CWD933192  
CWE20C3007  
CWE241289  
CWE261156  
CWE261158  
CWE261157  
CWE261159  
CWE261160  
CWA981241  
CWA98K1014  
CWE24C1295  
CWH521096  
CWH131350  
CWH13C1183  
CWA75C3560  
CWE11C4737  
CWE22C1483  
CWE14C1029  
CWD00K1017  
XTT4+16CFJ  
CWH521194  
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
CONNECTING BAR  
CONNECTING BAR  
CONNECTING BAR  
CONNECTING BAR  
CONNECTING BAR  
A.S.MOTOR,DC SINGLE 12V 300OHM  
A.S MOTOR,DC SINGLE 12V300 OHM  
HORIZONTAL VANE  
O
O
CAP - DRAIN TRAY  
CONTROL BOARD TOP COVER  
CONTROL BOARD FRONT COVER  
REMOTE CONTROL COMPLETE  
FRONT GRILLE COMPLETE  
INTAKE GRILLE COMPLETE  
GRILLE DOOR  
O
O
O
E-ION FILTER  
SCREW - FRONT GRILLE  
CAP - FRONT GRILLE  
64  
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50  
51  
52  
53  
54  
55  
56  
57  
DRAIN HOSE  
1
1
1
2
1
1
1
1
CWH851173  
CWH82C1705  
CWH361098  
CWH621103  
CWF567115  
CWF614219  
CWF614220  
CWA20C2836  
←
←
←
←
←
←
←
←
BAG COMPLETE - INSTALLATION SCREW  
INSTALLATION PLATE  
FULCRUM  
OPERATING INSTRUCTION  
INSTALLATION INSTRUCTION  
INSTALLATION INSTRUCTION  
POWER SUPPLY CORD  
(Note)  
•
•
All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).  
“O” marked parts are recommended to be kept in stock.  
65  
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18.2 Outdoor 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.  
66  
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REF. NO.  
1
PART NAME & DESCRIPTION  
CHASSY ASS’Y  
QTY  
1
2
1
2
1
3
1
1
1
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
CU-C18KKS  
CWD50K2115  
CWG302408  
CWD541065  
CWH551217  
CWA951401J  
CWH55252J  
CWH03K1017  
CWH561038J  
2KS252F5AA04  
CWB81043  
CU-C24KKS  
REMARK  
CWD50K2100  
2
SOUND PROOF MATERIAL  
FAN MOTOR BRACKET  
SCREW - FAN MOTOR BRACKET  
FAN MOTOR  
←
3
←
4
←
5
CWA951399J  
O
O
6
SCREW - FAN MOTOR MOUNT  
PROPELLER FAN ASS’Y  
NUT - PROPELLER FAN  
COMPRESSOR  
←
7
←
8
←
9
2J39S236A1A  
10  
11  
12  
13  
14  
15  
16  
17  
18  
21  
22  
23  
24  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
44  
45  
PACKING  
←
ANTI - VIBRATION BUSHING  
NUT - COMPRESSOR MOUNT  
CONDENSER  
CWH50055  
←
CWH561049  
CWB32C2966  
CWB15K1252  
CWB11025  
←
CWB32C2684  
CAPILLARY TUBE ASS’Y  
STRAINER  
CWB15K1282  
←
HOLDER COUPLING  
2-WAY VALVE (LIQUID)  
3-WAY VALVE (GAS)  
TERMINAL COVER  
CWH351036  
CWB021175  
CWB011483  
CWH171011  
CWH7080300J  
CWH151056  
CWA28K1064J  
CWA312078  
CWH30060  
←
←
O
O
CWB011484  
CWH171012  
NUT - TERMINAL COVER  
SOUND PROOF BOARD  
TERMINAL BOARD ASS’Y  
CAPACITOR - COM.  
←
←
←
CWA312088  
O
O
HOLDER CAPACITOR  
CAPACITOR - F.M  
CWH30071  
DS441355NPQA  
CWE041082A  
CWE04C1127  
CWE06K1045  
CWE03K1011A  
CWH131168  
CWE161010  
CWH131169A  
CWE16000E  
-
←
CABINET SIDE PLATE  
CABINET SIDE PLATE COMPLETE  
CABINET FRONT PLATE ASS’Y  
CABINET TOP PLATE  
CONTROL BOARD COVER COMP  
HANDLE  
←
←
←
←
←
←
CONTROL BOARD COVER(RIGHT-TOP)  
HANDLE  
←
←
THERMOSTAT  
CWA151061  
WIRE NET  
CWD041041A  
CWA67C7546  
←
OVERLOAD PROTECTOR WITH WIRE  
-
(Note)  
•
All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).  
“O” marked parts are recommended to be kept in stock.  
Printed in Malaysia  
SSYW1006-00  
67  
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