Panasonic Air Conditioner
Order No. MAC0710040C8
Air Conditioner
Indoor Unit Outdoor Unit
CS-C18HKD CU-C18HKD
CS-C24HKD CU-C24HKD
TABLE OF CONTENTS
PAGE
1 Safety Precautions----------------------------------------------- 2
2 Specifications ----------------------------------------------------- 4
2.1. CS-C18HKD CU-C18HKD ----------------------------- 4
2.2. CS-C24HKD CU-C24HKD ----------------------------- 6
3 Features ------------------------------------------------------------- 8
4 Location of Controls and Components ------------------- 9
4.1. Indoor Unit--------------------------------------------------- 9
4.2. Outdoor Unit ------------------------------------------------ 9
4.3. Remote Control -------------------------------------------- 9
PAGE
5 Dimensions ------------------------------------------------------- 10
5.1. Indoor Unit & Remote Control ------------------------ 10
5.2. Outdoor Unit----------------------------------------------- 11
6 Refrigeration Cycle Diagram -------------------------------- 12
7 Block Diagram --------------------------------------------------- 13
8 Wiring Connection Diagram--------------------------------- 14
8.1. CS-C18HKD CU-C18HKD ---------------------------- 14
8.2. CS-C24HKD CU-C24HKD ---------------------------- 15
9 Electronic Circuit Diagram----------------------------------- 16
© 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
13.1.
13.2.
13.3.
13.4.
13.5.
13.6.
10 Printed Circuit Board ------------------------------------------ 17
10.1. Indoor Unit (Main Printed Circuit Board) ----------- 17
10.2. Indoor Unit (Power Printed Circuit Board) --------- 19
10.3. Indicator panel -------------------------------------------- 20
11 Installation Instruction ---------------------------------------- 21
11.1. Select The Best Location ------------------------------ 21
11.2. Indoor Unit ------------------------------------------------- 22
11.3. Outdoor Unit ----------------------------------------------- 25
12 Operation Control----------------------------------------------- 28
12.1. Cooling Operation---------------------------------------- 28
12.2. Soft Dry Operation --------------------------------------- 29
12.3. Automatic Operation------------------------------------- 30
12.4. Indoor Fan Speed Control ----------------------------- 30
12.5. Outdoor Fan Speed Control --------------------------- 32
12.6. Vertical Airflow Direction Control --------------------- 32
12.7. Horizontal Airflow Direction Control ----------------- 33
12.8. Powerful Operation -------------------------------------- 33
12.9. Quiet Operation------------------------------------------- 34
12.10. Timer Control---------------------------------------------- 35
12.11. Random Auto Restart Control------------------------- 35
12.12. Remote Control Signal Receiving Sound ---------- 35
12.13. Patrol Operation ------------------------------------------ 36
12.14. e-ion Operation ------------------------------------------- 39
13 Operation Control----------------------------------------------- 42
14
15
16
17
18
Restart Control (Time Delay Safety Control) ----7 Minutes Time Save Control------------------------60 Seconds Forced Operation ----------------------Starting current Control--------------------------------Freeze Prevention Control ---------------------------Compressor Reverse Rotation Protection
Control-----------------------------------------------------13.7. Dew Prevention Control-------------------------------Servicing Mode-------------------------------------------------14.1. Auto OFF/ON Button ----------------------------------14.2. Select Remote Control Transmission Code------14.3. Remote Control Button --------------------------------Troubleshooting Guide --------------------------------------15.1. Refrigeration cycle system ---------------------------Disassembly and Assembly Instructions -------------16.1. Indoor Electronic Controllers and Control
Board Removal Procedures -------------------------Technical Data --------------------------------------------------17.1. Thermostat Characteristics---------------------------17.2. Operation Characteristics ----------------------------Exploded View and Replacement Parts List----------18.1. Indoor Unit------------------------------------------------18.2. Outdoor UnitCU-C18HKD ----------------------------18.3. Outdoor UnitCU-C24HKD -----------------------------
42
42
42
42
42
43
43
44
44
44
45
46
46
48
48
53
53
54
58
58
60
61
1 Safety Precautions
• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and
main circuit for the model installed.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and
the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
• The items to be followed are classified by the symbols:
This symbol denotes item that is PROHIBITTED from doing.
• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
1. Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water
leakage, electrical shock or fire.
2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,
fire or electrical shock.
2
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.
16. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping,
setting the valves at open condition, a burst may occur and cause injury.
17. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of
the unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may
break and cause refrigerant gas leakage.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please use a
high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C). Pb free solder
will tend to splash when heated too high (about 1100°F / 600°C).
7. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following
methods.
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries,
permanent connection of this room air conditioner to the power supply is prohibited.
i. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection to the
socket.
ii. Power supply connection to a circuit breaker for the permanent connection. Use an approved circuit breaker for the permanent
connection. It must be a double pole switch with a minimum 3.5 mm contact gap.
8. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts.
Take care of the liquid refrigerant, it may cause frostbite.
9. Installation work: It may need two people to carry out the installation work.
10. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
3
2 Specifications
2.1.
CS-C18HKD CU-C18HKD
Item
Unit
Indoor unit
Outdoor unit
Performance Test Condition
NEW JIS
Capacity
EER
kW
5.30 - 5.30
BTU/h
18100 - 18100
*kJ/h
—
W/W
3.08 - 3.01
BTU/hW
Noise Level
High: 42 Low: 37
Power level dB
—
Moisture Removal
Lo
m
—
2.9
(pt/h)
6.1
3/m
(ft3/m)
3
12.6 (444) - 12.6 (444)
—
Me
m /m (ft /m)
13.7 (482) - 13.7 (482)
—
Hi
m3/m
(ft3/m)
15.3 (540) - 15.3 (540)
30.3 (1070) - 30.8 (1090)
SHi
m3/m (ft3/m)
16.0 (563) - 16.0 (563)
—
Refrigerant Control Device
—
cm3
Refrigerant Oil (Charged)
Refrigerant (Charged) R22
Capillary Tube
ATMOS NM56M or SUNISO
—
4GDID (450cm3)
kg (oz)
—
0.95 (33.5)
Height
mm (inch)
275 (10 - 27/32)
540 (21 - 9/32)
Width
mm (inch)
998 (39 - 5/16)
780 (30 - 23/32)
Depth
mm (inch)
230 (9 - 1/16)
289 (11 - 13/32)
kg (lbs)
11 (24)
Net Weight
Pipe Diameter
High: 53 / 54
l/h
3
Air Volume
Dimension
10.52 - 10.28
dB (A)
37 (82)
Gas
mm (inch)
12.70 (1/2”)
Liquid
mm (inch)
6.35 (1/4”)
Height Difference
m (ft)
20 (65.6)
Pipe Length Range
m (ft)
3 (9.8) - 25 (82.0)
g/m (oz/ft)
20 (0.2)
Additional Gas Amount
Refrigeration Charge Less
Drain Hose
m (ft)
mm
16
Length
mm
650
—
—
Hermetic motor
—
Induction (2-poles)
Type
Compressor
Motor Type
Rated Output
W
Type
Material
Motor Type
Fan
—
1.5k
Cross-flow Fan
Propeller Fan
ASHT-18
PP Resin
Induction (8-poles)
Induction (6-poles)
W
47.3
86.5
Output power
W
30
36
rpm
1150 - 1150
—
Fan Speed
Me (Cool)
rpm
1250 - 1250
—
Hi (Cool)
rpm
1400 - 1400
830 - 840
SHi (Cool)
rpm
Fin material
Fin Type
Row u Stage u FPI
Size (W u H u L)
Air Filter Type
—
Input power
Lo (Cool)
Heat Exchanger
7.5 (24.6)
Inner diameter
mm
Material
Style
1460 - 1460
—
Aluminium (Pre Coat)
Aluminium (Blue Coat)
Slit Fin
Slit Fin
2 u 15 u 21
2 u 24 u 16
810 u 315 u 25.4
702.0:722.0 u 504 u 25.4
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.)
4
Item
Power Source (Phase, Voltage, Cycle)
Unit
ø
Single
Single
230
V
220
Hz
50
50
Input power
W
1.72k
1.76k
Starting Current
A
40
40
Running Current
Cooling
A
8.2
8.3
Maximum Current
Cooling
A
12.2
12.2
Power Factor
Cooling
%
95
92
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
3 (1.5mm)
m (ft)
2 (6)
Thermostat
—
Protection Device
—
Note:
• Specification are subject to change without prior notice for further improvement.
5
2.2.
CS-C24HKD CU-C24HKD
Item
Unit
Indoor unit
Outdoor unit
Performance Test Condition
NEW JIS
Capacity
EER
kW
7.03 - 7.03
BTU/h
24000 - 24000
*kJ/h
—
W/W
2.99 - 2.92
BTU/hW
Noise Level
High: 46 Low: 40
Power level dB
—
—
4.0
(pt/h)
Lo
8.5
3
3
14.0 (496) - 14.0 (496)
—
3
3
—
45.5 (1610) - 46.5 (1640)
m /m (ft /m)
Me
m /m (ft /m)
15.7 (556) - 15.7 (556)
Hi
m3/m (ft3/m)
16.9 (600) - 16.9 (600)
SHi
m3/m
17.9 (636) - 17.9 (636)
—
—
Capillary Tube
—
SUNISO 4GDID (700cm3)
Air Volume
(ft3/m)
Refrigerant Control Device
cm3
Refrigerant Oil (Charged)
Refrigerant (Charged) R22
ATMOS M60 or
kg (oz)
—
1.39 (49.1)
Height
mm (inch)
275 (10 - 27/32)
750 (29 - 17/32)
Width
mm (inch)
998 (39 - 5/16)
875 (34 - 15/32)
Depth
mm (inch)
230 (9 - 1/16)
345 (13 - 19/32)
kg (lbs)
11 (24)
Net Weight
Pipe Diameter
High: 53 / 54
l/h
Moisture Removal
Dimension
10.21 - 9.96
dB (A)
58 (128)
Gas
mm (inch)
15.88 (5/8”)
Liquid
mm (inch)
6.35 (1/4”)
Height Difference
m (ft)
20 (65.6)
Pipe Length Range
m (ft)
3 (9.8) - 25 (82.0)
Additional Gas Amount
Refrigeration Charge Less
Drain Hose
Compressor
g/m (oz/ft)
30 (0.3)
m (ft)
7.5 (24.6)
Inner diameter
mm
16
Length
mm
650
—
Type
—
Hermetic motor
Motor Type
—
Induction (2-poles)
Rated Output
W
Type
Material
Motor Type
Fan
2.2k
Propeller Fan
ASHT-18
PP Resin
Transitor (8-poles)
Induction (6-poles)
133.5
W
60
Output power
W
30
66
Lo (Cool)
rpm
1240 - 1240
420 - 450
Me (Cool)
rpm
1390 - 1390
—
Hi (Cool)
rpm
1500 - 1500
770 - 785
SHi (Cool)
rpm
1590 - 1590
—
Aluminium (Pre Coat)
Aluminium (Blue Coat)
Slit Fin
Slit Fin
Fin material
Fin Type
Row u Stage u FPI
Size (W u H u L)
Air Filter Type
—
Cross-flow Fan
Input power
Fan Speed
Heat Exchanger
—
mm
Material
Style
2 u 15 u 21
2 u 34 u 17
810 u 315 u 25.4
814.8:834.8 u 714 u 25.4
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.)
6
Item
Power Source (Phase, Voltage, Cycle)
Input power
Starting Current
Unit
ø
Single
Single
230
V
220
Hz
50
50
kW
2.35
2.41
A
65
65
Running Current
Cooling
A
11.5
11.6
Maximum Current
Cooling
A
15.1
15.1
Power Factor
Cooling
%
93
90
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Number of core
Length
3 (2.5mm)
m (ft)
Thermostat
2 (6)
Mechanical
Protection Device
—
Note:
• Specification are subject to change without prior notice for further improvement.
7
3 Features
• 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
- Patrol Sensor color changes to indicate the dirt level in the air
• Long Installation Piping
- CS/CU-C18/24HK, long piping up to 25 meter
• 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
- Blue coated condenser for high resistance to corrosion
• Operation Improvement
- Quiet mode to reduce the indoor unit operating sound
- Powerful mode to reach the desired room temperature quickly
- 24-hour timer setting
8
4 Location of Controls and Components
4.1.
Indoor Unit
4.2.
Outdoor Unit
4.3.
Remote Control
9
5 Dimensions
5.1.
5.1.1.
Indoor Unit & Remote Control
CS-C18HKD CS-C24HKD
10
5.2.
Outdoor Unit
5.2.1.
CU-C18HKD
5.2.2.
CU-C24HKD
11
6 Refrigeration Cycle Diagram
12
7 Block Diagram
13
8 Wiring Connection Diagram
8.1.
CS-C18HKD CU-C18HKD
Resistance of Outdoor Fan Motor Windings
Resistance of Compressor Windings
MODEL
CU-C18HKD
MODEL
CU-C18HKD
CONNECTION
CWA951116J
CONNECTION
2KS314D5FA04
BLUE-RED
230 :
C-R
1.633 :
YELLOW-RED
255 :
C-S
3.67 :
Note: Resistance at 20qC of ambient temperature.
Note: Resistance at 20qC of ambient temperature.
14
8.2.
CS-C24HKD CU-C24HKD
Resistance of Outdoor Fan Motor Windings
Resistance of Compressor Windings
MODEL
CU-C24HKD
MODEL
CU-C24HKD
CONNECTION
CWA951352J
CONNECTION
2JS438D3GA02
BLUE-YELLOW
99.6 :
C-R
0.830 :
YELLOW-RED
126.8 :
C-S
2.257 :
YELLOW-ORANGE
158.7 :
Note: Resistance at 20qC of ambient temperature.
Note: Resistance at 20qC of ambient temperature.
15
9 Electronic Circuit Diagram
16
10 Printed Circuit Board
10.1. Indoor Unit (Main Printed Circuit Board)
TOP VIEW
17
BOTTOM VIEW
18
10.2. Indoor Unit (Power Printed Circuit Board)
19
10.3. Indicator panel
TOP VIEW
BOTTOM VIEW
20
11 Installation Instruction
11.1. Select The Best Location
11.1.1.
11.1.3.
Indoor Unit
• 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 7.5m, 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)
C18HKD
1/2”
A18HKD
1/4”
5
20
3
25
20
C24HKD
5/8”
A24HKD
1/4”
5
20
3
25
30
Example: For A24HKD
If the unit is installed at 10 m distance, the quantity of additional
refrigerant should be 75 g ...... (10 - 7.5) m x 30 g/m = 75 g
21
Indoor/Outdoor Unit
Installation Diagram
11.2. Indoor Unit
11.2.1.
How to Fix Installation Plate
11.2.2.
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.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
The centre of installation plate should be at more than 550 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 47 mm.
From installation plate right edge to unit’s right is 73 mm.
: For left side piping, piping connection for liquid should be about
126 mm from this line.
: For left side piping, piping connection for gas should be about
174 mm from this line.
: For left side piping, piping connection cable should be about
984 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.
11.2.3.
Indoor Unit Installation
1. For the right rear piping
2. Drill the piping plate hole with ø70 mm hole-core drill.
• Line according to the arrows marked on the lower 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.
2. For the right and right bottom piping
22
3. For the embedded piping
(This can be used for left rear piping and left bottom piping
also.)
23
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 u 2.5 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).
24
11.3. Outdoor Unit
11.3.1.
Install the Outdoor Unit
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and
horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly
with bolt or nails.
Model
A
B
C
D
C18HKD
570 mm
105 mm
18.5 mm
320 mm
19 mm
383 mm
C24HKD, A18HKD,
A24HKD
11.3.2.
612.5 mm 131 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
C18HKD, A18HKD
1/2” [55 N m]
1/4” [18 N m)
C24HKD, A24HKD
5/8” [65 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.
25
11.3.3.
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.
26
11.3.4.
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 2.5 mm2 flexible
cord, type designation 245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
4. Attach the control board cover to the original position with the screw.
11.3.5.
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.
27
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 reaches 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 16qC to
30qC.
• During cooling operation, the compressor will stop running and restart as shown in figure below.
12.1.1. Cooling Operation Time Diagram
28
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 turned “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
29
12.3. Automatic Operation
• Automatic operation can be set using remote control.
• This operation starts to operate with indoor fan at SLo speed for 25 seconds to judge the intake air temperature.
• After judged the temperature, the operation mode is determined by referring to the below standard.
• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting
temperature as shown in below table.
• The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as
shown in below table by pressing on the temperature up or temperature down button at remote control.
• The operation mode judging temperature and standard setting temperature can be increased by 2qC permanently, by open the
circuit of JX03 at indoor electronic controller.
12.4. Indoor Fan Speed Control
• Indoor Fan Speed can be set using remote control.
12.4.1. Fan Speed Rotation Chart
COOL/DRY
CS-C18HKD
CS-C24HKD
S Hi
1460
1590
1500
Hi
1400
Me
1250
1390
H Lo
1220
1330
C Lo
1150
1240
1100
Lo-
980
S Lo
780
860
Q Hi
1300
1400
Q Me
1150
1290
Q Lo
1050
1140
30
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.
- Fan speed rotates in the range of Hi, Me and Lo-.
- Deodorizing Control will be activated.
• Auto Fan Speed during Cooling operation:
1. Indoor fan will rotate alternately between off and on as shown in below diagram.
2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.
3. For the first time the compressor operate, 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. During compressor stop, indoor fan will operate at Lo- for the beginning 20 seconds to prevent higher volume of refrigerant
in liquid form returning to the compressor.
5. After the compressor at turn off condition 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.
6. 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 restart of compressor.
• Auto Fan Speed during Soft Dry operation:
1. Indoor fan will rotate alternately between off and Lo-.
2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.
3. When compressor at turn off condition for 6 minutes, indoor fan will start fan speed at Lo- to circulate the air in the room.
This is to obtain the actual reading of intake air temperature.
31
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.
12.5. Outdoor Fan Speed Control
• There is only one speed for outdoor fan motor (C18HK).
• There is 2 speed for outdoor fan motor. Outdoor fan speed can be changed to Hi or Lo according to outdoor temperature
(C24HK).
• For Cooling or Soft Dry operation when outdoor temperature reaches to 31qC (Hi-speed), 29qC (Lo-speed).
• When the 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 stopped with remote control, the discharge vent is reset, and stop 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 and rest at the upper limit.
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 stopped with remote control, the discharge vent is reset, and stop at the closing position.
32
12.7. Horizontal Airflow Direction Control
12.7.1. Auto Control
• When the horizontal airflow direction 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 vane is 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 22q 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 3qC internally against the present
setting temperature (Lower temperature limit: 16qC).
• This operation automatically will be running under SHi Fan Speed (Cooling).
• Vertical Airflow Direction:- In “Manual” setting, the vane will automatically shift down 10q lower than previous setting.
- In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10q downward.
• Powerful operation stops when:• Powerful operation has operate for 15 minutes.
• Powerful button is pressed again.
• Quiet button is pressed.
• Stopped by OFF/ON operation button.
• Timer OFF activates.
• Operation mode is changed.
33
12.9. Quiet Operation
(For Cooling Operation or cooling region of Soft Dry Operation)
• To provide quiet cooling operation condition.
• Once the Quiet Mode is set at the remote control, the Quiet Mode LED illuminated. The sound level will reduce around 2 dB (A)
for Lo fan speed or 3 dB(A) for Hi/Me fan speed against the present operation sound level.
• Manual Fan Speed:- RPM control during Lo cool
- RPM control during Hi & Me cool
• Auto Fan Speed:-
• Quiet operation stops when:- Quiet button is pressed again.
- Stopped by OFF/ON operation button.
- Timer OFF activates.
- Powerful button is pressed.
34
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 operation indication lamp will blink at this time.
12.10.2. OFF Timer
• When the OFF Timer is set by using the remote control, the unit will stop operate according to the desired setting.
Notes
1. By pressing ON/OFF operation button, the ON Timer or OFF Timer setting will not be cancelled.
2. To cancel the previous timer setting, press CANCEL button.
3. To activate the previous timer setting, press SET button.
4. If main power supply is switched off, the Timer setting will be cancelled.
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, setting 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
• Long beep sound will be heard when:
- Stopping the air conditioner using ON/OFF switch.
- Disable e-ion and Pastrol operation.
• Short beep sound will be heard for others setting.
35
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 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.
• 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.
• 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.
36
• Patrol 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 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:
Q
Air Dirtiness level 0: Clean
– Patrol LED = blue color
Q
Air Dirtiness level 1: Moderate
– Patrol LED = orange color
Q
Air Dirtiness level 2: Dirty
– Patrol LED = red color
• Dirtiness level sensitivity adjustment
It is possible to change the Patrol sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted accordingly:
1. Press and release “SET” button.
2. Press Timer / Timer button to select sensitivity.
(Air 1 “Low Sensitivity” <-> Air 2 “Standard” (Default) <-> Air 3 “High Sensitivity”)
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.
• e-ion Control
- e-ion operation starts condition
Q
When dirtiness at level 2 (Patrol LED turns red).
- e-ion operation time
Q
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.
Q
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
- When e-ion operation starts, the fan speed increases based on dirtiness level:
- Indoor Fan Control
Q
During any operation mode combines with Patrol operation, fan speed follows respective operation mode.
Q
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.
Q
During Patrol individual operation if e-ion stops, Indoor Fan stop operation.
• Airflow direction (Horizontal, Vertical) Control
- During any operation mode combines with Patrol operation, air flow 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.
37
• Indicator
- When Patrol operation starts, Patrol LED is ON with 3 different colors:
Patrol LED
Air Quality
Blue
Clean
Orange
Moderate
Red
Dirty
- Then e-ion operation starts based on dirtiness level, both Patrol LED and e-ion LED are ON
• Remote Control Receiving Sound
- Normal Operation
Î Patrol Mode
- Patrol Mode
Î Stop
- Patrol Mode
Î Normal Operation
- Stop
Î Patrol
: Beep
: Long Beep
: Beep
: Beep
• 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.
• 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.
• Error Detection Control
- The Patrol error detection control starts once the power is supplied to Patrol sensor. However, the error will display when the
Patrol operation is ON.
- Error detection method:
1. If the Patrol sensor is opened circuit continuously for 6 hours, Patrol sensor error occurs. However, the error will display
only when the Patrol operation is ON.
- Patrol Sensor Control after error occurs
1. During any operation mode combines with Patrol operation.
a. Power supply to Patrol sensor is OFF.
b. Air conditioner normal mode operation continues with Patrol LED blinking.
c. The Patrol LED continues blinking if the patrol operation is ON and stops blinking if the patrol operation is OFF.
- During Patrol individual mode
1. Power supply to Patrol sensor is OFF.
2. Patrol LED blinks.
3. The Patrol LED continues blinking if the Patrol operation is ON and stops blinking if the Patrol operation is OFF.
- Error cancel condition:
1. Power supply reset.
38
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
- 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.
• 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.
• 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 t40qC. e-ion operation resume after indoor intake temperature < 40qC continuously for 30
minutes.
• 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:
• 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.
• 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.
39
• Indicator
- When e-ion operation starts, e-ion indicator ON.
• Remote Control Receiving Sound
- Normal Operation
Î e-ion Operation
: Beep
- e-ion Operation
Î Normal Operation
: Beep
- Stop
Î e-ion individual Operation : Beep
- e-ion individual Operation
Î Stop
: Long Beep
• 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.
- 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.
• 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.
• Error Detection Control
When e-ion indicator blink, it indicates error listed below:
1. e-ion AIR PURIFYING SYSTEM PCB main connector open:
• Judgment 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.
2. Abnormal Discharge error:
• 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 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 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).
• Troubleshooting Method
- Press “e-ion” button or “OFF/ON” button to stop the operation and check the e-ion AIR PURIFYING SYSTEM main
connector to PCB.
- After that, press “e-ion” button again to confirm the e-ion indicator not blinking.
- The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.
•
-
Error Reset Method
Press “OFF/ON” button to OFF the operation.
Press AUTO OFF/ON button at indoor unit to OFF the operation.
OFF Timer activates.
Press “e-ion” button during e-ion individual mode.
Power supply reset.
40
3. Active e-ion Air Purifying system breakdown error:
• Judgment Method
- When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, 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.
•
-
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.
41
13 Operation Control
13.1. Restart Control (Time Delay Safety Control)
• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:- 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, force stop by pressing the OFF/ON operation button at the
remote control is permitted.
• The reason for the compressor to force operate at 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 second later.
• The reason of the difference is to reduce the starting current flow.
13.5. Freeze Prevention Control
• If the temperature of the indoor heat exchanger falls below 2qC continuously for 4 minutes or more, the compressor turns off.
The fan speed setting remains the same.
• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form
returning to the compressor.
• Compressor will restart again when the indoor heat exchanger temperature rises to 10qC (Recovery).
• Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.
42
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 2.5qC or less for continuous 2 minutes, compressor will stop and restart automatically.
• Time Delay Safety Control is activated before the compressor restart.
• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.
13.7. Dew Prevention Control
• To prevent dew formation at indoor unit discharge area.
• This control starts if:
- Cooling mode or Quiet mode is activated.
- Remote Control setting temperature is less than 25qC.
- Fan speed is at Lo or QLo.
- Room temperature is constant (±1qC) for 30 minutes.
- Compressor is continuously running.
• Fan speed, angle of horizontal louver (vertical airflow angle) and angle of vertical louver (horizontal airflow angle) will be adjusted
accordingly in this control.
- Fan speed will be increased slowly if the unit is in quiet mode and Lo fan speed.
- The angle of horizontal louver will be changed as table below:
Airflow direction auto control
Airflow direction manual control
- The angle of vertical louver will be changed as table below:
Airflow direction auto control
Airflow direction manual control
• Dew prevention stop condition
- Remote control setting temperature is more than 25qC.
- Fan speed is not set to Lo or QLo.
- Select Powerful operation.
43
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 use 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 occur at the fifth seconds, in order to identify the starting of Test Run operation.
3. REMOTE CONTROL RECEIVING SOUND OFF/ON MODE
The Remote Control Receiving Sound OFF/ON operation 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” sound will occur at to identify the starting of Remote
Control Receiving Sound Off/On Mode.
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.
14.2. Select Remote Control Transmission Code
• There are 4 type 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 unit installed nearby together.
• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.
• During Remote Control Receiving Sound OFF/ON Mode, press any button at remote control to transmit and store the desired
transmission code to the EEPROM.
44
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. TIMER
• To change indoor unit indicator’s LED intensity.
- Press continuously for 5 seconds.
14.3.5. TIMER
• To change remote control display from Degree Celsius to Degree Fahrenheit.
- Press continuously for 10 seconds.
45
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 to the right.
46
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)
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.
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.
Insufficient compressing of a compressor
• The discharge tube of the compressor becomes abnormally hot (normally 70 to 90qC).
• The difference between high pressure and low pressure becomes almost zero.
• 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.
47
16 Disassembly and Assembly Instructions
WARNING
• Cautions! When handling electronic controller, be careful of electrostatic discharge.
• Be sure to return the wiring to its original position.
• There are many high voltage components within the heat sink cover so never touch the interior during operation. Wait at least two minutes after
power has been turned off.
16.1. Indoor Electronic Controllers and Control Board Removal Procedures
48
49
50
51
52
17 Technical Data
17.1. Thermostat Characteristics
Cooling
Soft Dry
53
17.2. Operation Characteristics
17.2.1. CS-C18HKD CU-C18HKD
54
55
17.2.2. CS-C24HKD CU-C24HKD
56
57
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.
58
REF. NO.
PART NAME & DESCRIPTION
QTY.
CS-C18HKD
CS-C24HKD
1
CWD50C1520
m
FAN MOTOR, DC 30W 3PH
1
ARW61E8P30AC
m
CROSS FLOW FAN COMPLETE
1
CWH02C1010
m
4
SCREW - CROSS FLOW FAN
1
CWH551146
m
5
BEARING ASS’Y
1
CWH64K007
m
6
EVAPORATOR CO.
1
CWB30C2151
CWB30C2149
7
FLARE NUT (1/4”)
1
CWT251026
m
8
FLARE NUT (1/2”)(5/8”)
1
CWT25007
CWT251036
9
INTAKE AIR SENSOR HOLDER
1
CWH32143
m
1
CHASSY COMPLETE
2
3
10
DISCHARGE GRILLE COMPLETE
1
CWE20C2683
m
11
VERTICAL VANE
15
CWE241088
m
12
CONNECTING BAR
1
CWE261025
m
13
A.S.MOTOR,DC SINGLE 12V 300 OHM
1
CWA98260+MJ
m
14
LEAD WIRE - AIR SWING MOTOR
1
CWA67C3977
m
15
A.S.MOTOR,DC SINGLE 12V 300 OHM
1
CWA98K1009
m
16
LEAD WIRE - AIR SWING MOTOR
1
CWA67C3977
m
17
HORIZONTAL VANE
1
CWE241152C
m
18
HORIZONTAL VANE
1
CWE241153C
m
19
CAP FOR DRAIN TRAY COMPLETE
1
CWH521096
m
20
BACK COVER CHASSIS
1
CWD932162B
m
21
CONTROL BOARD CASING
1
CWH102334
m
22
TERMINAL BOARD COMPLETE
1
CWA28C2316
CWA28C2317
23
P.S.CORD
1
CWA20C2617
CWA20C2663
24
ELECTRONIC CONTROLLER - MAIN
1
CWA73C3008
CWA73C3003
25
ELECTRONIC CONTROLLER - POWER
1
CWA744788
m
26
INDICATOR COMPLETE
1
CWE39C1184
m
27
INDICATOR HOLDER
1
CWD932817
m
28
INDICATOR HOLDER
1
CWD932818
m
29
SENSOR COMPLETE
1
CWA50C2401
m
30
CONTROL BOARD TOP COVER
1
CWH131209
m
31
CONTROL BOARD FRONT COVER
1
CWH131210
m
32
REMOTE CONTROL COMPLETE
1
CWA75C3155
m
33
FRONT GRILLE COMPLETE
1
CWE11C3894
m
34
INTAKE GRILLE COMPLETE
1
CWE22C1411
m
35
GRILLE DOOR
1
CWE141076
m
36
ION - GENERATOR
1
CWH94C0014
m
37
e-ION AIR PURIFYING SYSTEM
1
CWH14C5600
m
38
e-ION FILTER
2
CWD00K1005
m
39
SCREW - FRONT GRILLE
3
XTT4+16CFJ
m
40
CAP - FRONT GRILLE
3
CWH521062A
m
41
DRAIN HOSE
1
CWH851063
m
42
BAG COMP. - INSTALLATION SCREW
1
CWH82C067
m
43
INSTALLATION HOLDER ASS’Y
1
CWH36K1007
m
44
FULCRUM
2
CWH621047
m
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
59
18.2. Outdoor Unit
CU-C18HKD
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.
60
18.3. Outdoor Unit
CU-C24HKD
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.
61
REF. NO.
QTY.
CU-C18HKD
CU-C24HKD
1
CHASSY ASS’Y
PART NAME & DESCRIPTION
1
CWD50K2072
CWD50K2100
2
COMPRESSOR
1
2KS314D5FA04
2JS438D3GA02
3
ANTI - VIBRATION BUSHING
3
CWH50049
CWH50055
4
NUT - COMPRESSOR MOUNT
3
CWH561049
m
5
PACKING - COM.MOUNT
3
CWB81043
m
6
CONDENSER
1
CWB32C1954
CWB32C2215
7
SOUND PROOF BOARD
1
CWH151023
CWH151051
8
FAN MOTOR BRACKET
1
CWD541030
CWD541065
9
SCREW - FAN MOTOR BRACKET
2
CWH551217
—
10
FAN MOTOR (AC 36W SINGLE) (AC 30W SINGLE)
1
CWA951116J
CWA951352J
11
SCREW - FAN MOTOR MOUNT
3
CWH55406J
CWH55252J
12
PROPELLER FAN ASS’Y
1
CWH03K1006
CWH03K1017
13
NUT - PROPELLER FAN
1
CWH56053J
CWH561038J
14
HOLDER COUPLING
1
CWH351046
CWH351036
15
2-WAY VALVE (LIQUID)
1
CWB021363
CWB021175
16
CAPILLARY TUBE ASS’Y
1
CWB15K1206
—
17
TUBE ASS’Y (CAPILLARY TUBE)
1
—
CWT024670
18
3-WAY VALVE (GAS)
1
CWB011233
CWB011484
19
TERMINAL COVER
1
CWH171012
m
20
NUT - TERMINAL COVER
1
CWH7080300J
m
21
CAPACITOR - F.M (2mF, 440V)
1
DS441205NPQA
DS441355NPQA
22
CAPACITOR - COMPRESSOR (40mF, 400V)
1
CWA312079
CWA312079
23
HOLDER CAPACITOR
1
CWH30060
m
24
TERMINAL BOARD ASS’Y
1
CWA28K1064J
m
25
CABINET SIDE PLATE (L)
1
CWE041248A
CWE041255A
26
HANDLE
1
CWE161010
m
27
CABINET SIDE PLATE COMPLETE
1
CWE04C1120
CWE04C1127
28
HANDLE
2
—
CWE16000E
29
CABINET FRONT PLATE ASS’Y
1
CWE06K1034
CWE06K1043
30
CABINET TOP PLATE ASS’Y
1
CWE031014A
CWE03K1009A
31
CONTROL BOARD COVER
1
CWH131295
CWH131168
32
CONTROL BOARD COVER COMPLETE
1
CWH13C1064
CWH131169A
33
OPERATION INSTRUCTIONS
1
CWF565770
m
34
INSTALLATION INSTRUCTIONS
1
CWF613315
—
35
INSTALLATION INSTRUCTIONS
1
CWF613316
—
36
STRAINER
1
CWB11004
CWB11025
37
SOUND PROOF MATERIAL
1
CWG302256
CWG302407
38
THERMOSTAT
1
—
CWA151040
39
WIRE NET COMPLETE
1
CWD041111A
CWD041041A
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
62
[PHAAM] Printed in Malaysia
SFTH0710-00
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