Indoor Unit
Order No. MAC0411046C3
Air Conditioner
CS-C7DKD CU-C7DKD
CS-C9DKD CU-C9DKD
CS-C12DKD CU-C12DKD
CONTENTS
Page
Page
1 Features
2
6 Block Diagram
16
2 Functions
3
7 Wiring Diagram
17
3 Product Specifications
6
8 Operation Details
19
3.1. CS-C7DKD CU-C7DKD
6
8.1. Cooling Operation
19
3.2. CS-C9DKD CU-C9DKD
8
8.2. Soft Dry Operation
20
10
8.3. Automatic Operation
21
12
8.4. Operation Control
22
4.1. Indoor Unit & Remote Control
12
8.5. Indoor Fan Speed Control
25
4.2. Outdoor Unit
13
8.6. Outdoor Fan Speed Control
27
15
8.7. Vertical Airflow Direction Control
27
3.3. CS-C12DKD CU-C12DKD
4 Dimensions
5 Refrigeration Cycle Diagram
© 2004 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8.8. Horizontal Airflow Direction Control
28
8.9. Powerful Operation
28
12.3. Indoor Fan Motor and Cross Flow Fan Removal
Procedures
63
8.10. Quiet Operation
29
12.4. Auto OFF/ON Button
64
8.11. Ionizer Operation
30
12.5. Remote Control Reset
65
8.12. Timer Control
31
8.13. Random Auto Restart Control
31
13.1. Refrigeration cycle system
8.14. Remote Control Signal Receiving Sound
31
13.2. Relationship between the condition of the air conditioner
9 Operating Instructions
32
10 Installation Instructions
38
13 Troubleshooting Guide
and pressure and electric current
13.3. Diagnosis methods of a malfunction of a compressor
66
67
67
68
10.1. Safety Precautions
38
10.2. Attached accessories
40
14.1. Thermostat characteristics
68
10.3. Select the best location
40
14.2. Sensible Capacity Chart
68
10.4. Indoor/Outdoor Unit Installation Diagram
40
14.3. Operation characteristics
69
10.5. Indoor unit
41
15 Exploded View (Indoor Unit)
71
10.6. Outdoor unit
44
16 Replacement Parts List (Indoor Unit)
72
49
17 Exploded View (Outdoor Unit)
73
11.1. Evacuation of the Equipment
50
18 Replacement Parts List (Outdoor Unit)
75
11.2. Air Purging of the Piping and Indoor Unit
56
19 Electronic Circuit Diagram
76
11 2-way, 3-way Valve
14 Technical Data
66
62
19.1. Indoor Unit
76
12.1. Distinction of Lead Free (PbF) Printed Circuit Board
62
19.2. Remote Control
82
12.2. Indoor Electronic Controller Removal Procedures
62
19.3. Print Pattern Indoor Unit Printed Circuit Board
83
12 Servicing Information
1 Features
• High Efficiency
• Quality Improvement
− Random auto restart after power failure for safety restart
operation.
• Compact Design
− Gas leakage protection.
− Prevent Compressor reverse cycle.
• Wider range of horizontal discharge air.
− Inner protector to protect Compressor.
− Noise prevention during soft dry operation.
• Air Filter with function to reduce dust and smoke.
− Blue Coated Condenser for high resistance to corrosion.
• Automatic air swing and manual adjusted by Remote
Control for vertical airflow.
• Operation Improvement
− Quiet mode to provide quiet operation.
• Long installation piping.
− Powerful mode to reach the desired room temperature
quickly.
− CS/CU-C7DK, CS/CU-C9DK, long piping up to 10
meter.
− Ionizer control for generating negative ion in discharge
air.
− CS/CU-C12DK, long piping up to 15 meter.
− 24-hour timer setting.
• Supersonic Air Purifying Device with SUPER allerubuster.
• Serviceability Improvement
− Removable and washable Front Panel.
− Inactive various harmful airborne elements including
allergen, viruses and bacteria.
− Generated supersonic waves enhance the ability to
collect dust and dirt in the air.
2
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
2 Functions
3
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
4
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
5
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
3 Product Specifications
3.1.
CS-C7DKD CU-C7DKD
Power Source (Phase, Voltage, Cycle)
Cooling Capacity
Moisture Removal
Airflow Method
Unit
ø, V, Hz
kW (BTU/h)
l/h (Pint/h)
Indoor unit
Outdoor unit
Single, 220 - 230, 50
2.00 - 2.02 (6,820 - 6,890)
1.3 (2.7)
OUTLET
SIDE VIEW
TOP VIEW
5.1 (179) - 5.1 (179)
5.9 (207) - 5.9 (207)
6.5 (230) - 6.5 (230)
7.2 (252) - 7.2 (250)
High 33 - 33, Low 26 - 26
High 46 - 46
—
—
28.8 (1020) - 29.2 (1030)
—
High 46 - 47
High 61 - 62
INTAKE
Air Volume
Lo
Me
Hi
SHi
Noise Level
Electrical Data
Input Power
Running Current
EER
Starting Current
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Inner diameter
Hose
Length
Power Cord
Length
Number of core-wire
Dimensions
Height
Width
Depth
Net Weight
Compressor
Description
Fan Motor
Heat Exchanger
Motor
Rated
Description
Material
Type
Input
Rated
Fan Speed
Type
Output
Output
Low
Medium
High
SuperHigh
590 - 640
2.8 - 2.9
3.39 - 3.15 (11.6 - 10.8)
12.4
G ; Half Union 3/8”
G ; 3-way valve 3/8”
L ; Half Union 1/4”
L ; 2-way valve 1/4”
G ; (gas side) 3/8”
G ; (gas side) 3/8”
L ; (liquid side) 1/4”
L ; (liquid side) 1/4”
19.5
—
650
—
2.0
—
3 (1.5 mm2)
—
11 - 1/32 (280)
20 - 3/32 (510)
31 - 15/32 (799)
25 - 19/32 (650)
7 - 7/32 (183)
9 - 1/16 (230)
20 (9)
49 (22)
—
Rotary (1 cylinder)
rolling piston type
—
Induction (2-poles)
—
550
Cross-flow Fan
Propeller Fan
AS + Glass Fiber 20%
PP Resin
Induction (4-poles)
Induction (6-poles)
55.0 - 66.0
65.0 - 72.4
15
30
860 - 860
—
990 - 990
—
1,100 - 1,100
800 - 830
1,210 - 1,210
—
Evaporator
Condenser
Copper
Copper
Aluminium (Pre Coat)
Aluminium (Blue Coat)
Slit Fin
Louver Fin
(Plate fin configuration, forced draft)
2 × 10
1 × 22
18
17
610 × 210 × 25.4
12.7 × 483 × 600
—
Capillary Tube
—
SUNISO 4GDID or ATMOS M60
(290)
—
450 (15.9)
—
—
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
rpm
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W × H × L)
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
Power level dB
W
A
W/W (BTU/hW)
A
inch
inch
inch
inch
mm
mm
m
mm
(cm3)
g (oz)
6
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
Unit
Protection Device
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Length
Flow Rate
Inner Diameter
Material
Style
mm
l/min
mm
Indoor unit
—
—
—
—
P.P.
Honeycomb
µF, VAC
µF, VAC
—
1.5 µF, 440VAC
Outdoor unit
2 Stage Overload Protector
810
9.9
1.5
—
Capillary Tube
Note:
• Specifications are subjected to change without prior notice for further improvement.
7
20 µF, 370VAC
2.0 µF, 440VAC
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
3.2.
CS-C9DKD CU-C9DKD
Power Source (Phase, Voltage, Cycle)
Cooling Capacity
Moisture Removal
Airflow Method
Unit
ø, V, Hz
kW (BTU/h)
l/h (Pint/h)
Indoor unit
Outdoor unit
Single, 220 - 230, 50
2.60 - 2.65 (8,870 - 9,040)
1.6 (3.4)
OUTLET
SIDE VIEW
TOP VIEW
INTAKE
Air Volume
Lo
Me
Hi
SHi
Noise Level
Electrical Data
Input Power
Running Current
EER
Starting Current
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Inner diameter
Hose
Length
Power Cord
Length
Number of core-wire
Dimensions
Height
Width
Depth
Net Weight
Compressor
Description
Fan Motor
Heat Exchanger
Motor
Rated
Description
Material
Type
Input
Rated
Fan Speed
Type
Output
Output
Low
Medium
High
SuperHigh
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
Power level dB
W
A
W/W (BTU/hW)
A
inch
inch
inch
inch
mm
mm
m
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
rpm
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W × H × L)
Refrigerant Control Device
Refrigeration Oil
(cm3)
Refrigerant (R-22)
g (oz)
mm
Thermostat
Protection Device
5.0 (178) - 5.0 (178)
—
6.1 (216) - 6.1 (216)
—
7.1 (250) - 7.1 (250)
28.8 (1,020) - 29.2 (1,040)
7.6 (267) - 7.6 (267)
—
High 36 - 36, Low 26 - 26
High 46 - 47
High 49 - 49
High 61 - 62
800 - 825
3.8 - 3.8
3.25 - 3.21 (11.1 - 11.0)
18.0
G ; Half Union 3/8”
G ; 3-way valve 3/8”
L ; Half Union 1/4”
L ; 2-way valve 1/4”
G ; (gas side) 3/8”
G ; (gas side) 3/8”
L ; (liquid side) 1/4”
L ; (liquid side) 1/4”
19.5
—
650
—
2.0
—
3 (1.5 mm2)
—
11 - 1/32 (280)
20 - 3/32 (510)
31 - 15/32 (799)
25 - 19/32 (650)
7 - 7/32 (183)
9 - 1/16 (230)
20 (9)
55 (25)
—
Rotary (1 cylinder)
rolling piston type
—
Induction (2-poles)
—
750
Cross-flow Fan
Propeller Fan
AS + Glass Fiber 20%
PP Resin
Induction (4-poles)
Induction (6-poles)
55.0 - 60.5
896 - 924
15
30
860 - 860
—
1,040 - 1,040
—
1,210 - 1,210
780 - 830
1,290 - 1,290
—
Evaporator
Condenser
Copper
Copper
Aluminium (Pre Coat)
Aluminium (Blue Coat)
Slit Fin
Louver Fin
(Plate fin configuration, forced draft)
2 × 10
1 × 22
18
17
610 × 210 × 25.4
12.7 × 483 × 600
—
Capillary Tube
—
ATMOS M60 OR ATMOS 56M
OR SUNISO 4GDID
—
430 (15.2)
—
—
8
—
2 Stage Overload Protector
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Length
Flow Rate
Inner Diameter
Material
Style
Unit
mm
l/min
mm
Indoor unit
—
—
—
P.P.
Honeycomb
µF, VAC
µF, VAC
—
1.5 µF, 440VAC
Outdoor unit
298
9.0
1.2
—
Capillary Tube
Note:
• Specifications are subjected to change without prior notice for further improvement.
9
30 µF, 370VAC
2.0 µF, 440VAC
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
3.3.
CS-C12DKD CU-C12DKD
Power Source (Phase, Voltage, Cycle)
Cooling Capacity
Moisture Removal
Airflow Method
Unit
ø, V, Hz
kW (BTU/h)
l/h (Pint/h)
Indoor unit
Outdoor unit
Single, 220 - 230, 50
3.52 - 3.54 (12,000 - 12,100)
2.1 (4.4)
OUTLET
SIDE VIEW
TOP VIEW
INTAKE
Air Volume
Lo
Me
Hi
SHi
Noise Level
Electrical Data
Input Power
Running Current
EER
Starting Current
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Inner diameter
Hose
Length
Power Cord
Length
Number of core-wire
Dimensions
Height
Width
Depth
Net Weight
Compressor
Description
Fan Motor
Motor
Rated
Description
Material
Motor
Rated
Fan Speed
Heat Exchanger
Type
Output
Type
Input
Output
Low
Medium
High
SuperHigh
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
rpm
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W × H × L)
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
Power level dB
kW
A
W/W (BTU/hW)
A
inch
inch
inch
inch
mm
mm
m
mm
(cm3)
g (oz)
10
6.6 (233) - 6.6 (233)
—
7.8 (274) - 7.8 (274)
—
9.4 (330) - 9.4 (330)
30.9 (1,090) - 31.6 (1,120)
9.6 (340) - 9.6 (340)
—
High 39 - 39, Low 29 - 29
High 48 - 49
High 52 - 52
High 63 - 64
1.11 - 1.13
5.3 - 5.2
3.17 - 3.13 (10.8 - 10.7)
27.0
G ; Half Union 1/2”
G ; 3-way valve 1/2”
L ; Half Union 1/4”
L ; 2-way valve 1/4”
G ; (gas side) 1/2”
G ; (gas side) 1/2”
L ; (liquid side) 1/4”
L ; (liquid side) 1/4”
19.5
—
650
—
2.0
—
3 (1.5 mm2)
—
11 - 1/32 (280)
21 - 1/4 (540)
31 - 15/32 (799)
30 - 23/32 (780)
7 - 7/32 (183)
11 - 3/8 (289)
20 (9.0)
71 (32.0)
—
Rotary (1 cylinder) rolling piston
type
—
Induction (2-poles)
—
950
Cross-flow Fan
Propeller Fan
AS + Glass Fiber 20%
PP Resin
Induction (4-poles)
Induction (6-poles)
55.0 - 66.0
1243 - 1265
15
31
890 - 890
—
1,050 - 1,050
—
1,270-1,270
815 - 850
1,300-1,300
—
Evaporator
Condenser
Copper
Copper
Aluminium (Pre Coat)
Aluminium (Blue Coat)
Slit Fin
Louver Fin
(Plate fin configuration, forced draft)
2 × 15
1 × 24
19
17
610 × 315 × 25.4
12.7 × 508 × 745
—
Capillary Tube
—
ATMOS M60 OR SUNISO
4GDID
—
630 (22.2)
—
—
—
—
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Length
Flow Rate
Inner Diameter
Material
Style
Unit
mm
l/min
mm
Indoor unit
—
—
—
P.P.
Honeycomb
µF, VAC
µF, VAC
—
1.5 µF, 440VAC
Outdoor unit
605
15.7
1.7
—
Capillary Tube
Note:
• Specifications are subjected to change without prior notice for further improvement.
11
35 µF, 370VAC
2.0 µF, 440VAC
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
4 Dimensions
4.1.
Indoor Unit & Remote Control
12
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
4.2.
Outdoor Unit
CU-C7DKD/CU-C9DKD
13
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
CU-C12DKD
14
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
5 Refrigeration Cycle Diagram
15
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
6 Block Diagram
16
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
7 Wiring Diagram
CS/CU-C7DKD CS/CU-C9DKD
REMARKS
B
BR
BL
GRY
O
P
R
W
Y/G
:
:
:
:
:
:
:
:
:
BLUE
BROWN
BLACK
GRAY
ORANGE
PINK
RED
WHITE
YELLOW/GREEN
Power Supply Cord
Resistance of Indoor Fan Motor Windings
MODEL
CONNECTION
BLUE-YELLOW
YELLOW-RED
CS-C7DKD
CS-C9DKD
CWA921181
390.0 Ω
390.0 Ω
Note: Resistance at 20°C of ambient temperature.
Resistance of Outdoor Fan Motor Windings
MODEL
CONNECTION
BLUE-YELLOW
YELLOW-RED
CU-C7DKD
CU-C9DKD
CWA951379
285.0 Ω
281.0 Ω
Note: Resistance at 26°C of ambient temperature.
Resistance of Compressor Windings
MODEL
CONNECTION
C-R
C-S
CU-C7DKD
2RS122D5BC02
5.193 Ω
5.557 Ω
Note: Resistance at 20°C of ambient temperature.
MODEL
CONNECTION
C-R
C-S
CU-C9DKD
2PS156D3BB02
3.501 Ω
3.405 Ω
Note: Resistance at 25°C of ambient temperature.
17
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
CS/CU-C12DKD
REMARKS
B
BR
BL
GRY
O
P
R
W
Y/G
:
:
:
:
:
:
:
:
:
BLUE
BROWN
BLACK
GRAY
ORANGE
PINK
RED
WHITE
YELLOW/GREEN
Power Supply Cord
Resistance of Indoor Fan Motor Windings
MODEL
CONNECTION
BLUE-YELLOW
YELLOW-RED
CS-C12DKD
CWA921181
390.0 Ω
390.0 Ω
Note: Resistance at 20°C of ambient temperature.
Resistance of Outdoor Fan Motor Windings
MODEL
CONNECTION
BLUE-YELLOW
YELLOW-RED
CU-C12DKD
CWA951263
281.0 Ω
251.0 Ω
Note: Resistance at 26°C of ambient temperature.
Resistance of Compressor Windings
MODEL
CONNECTION
C - R (Main)
C - S (Sub)
CU-C12DKD
2KS206D5AF04
2.23 Ω
2.63 Ω
Note: Resistance at 25°C/20°C of ambient temperature.
18
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8 Operation Details
8.1.
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 16°C
to 30°C.
• During cooling operation, the compressor will stop running and restart as shown in below figure.
8.1.1.
Cooling Operation Time Diagram
19
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8.2.
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 below figure.
• 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.
8.2.1.
Soft Dry Operation Time Diagram
20
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8.3.
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.
• 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 2°C permanently, by open the
circuit of JX1 at indoor electronic controller.
21
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8.4.
8.4.1.
Operation Control
Restart Control (Time Delay Safety Control)
• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:− Cooling/Heating 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.
(For 8.5.3. to 8.5.6. information applies only to Cooling and Soft Dry Operation)
8.4.2.
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.
8.4.3.
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.
8.4.4.
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.
22
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
8.4.5.
Anti-Freezing Control
• If the temperature of the indoor heat exchanger falls below 2°C 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 10°C (Recovery).
• Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.
8.4.6.
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 continuous 2 minutes, compressor will stop and restart automatically.
• Time Delay Safety Control is activated before the compressor restart.
s T = Intake air temperature - Indoor heat exchanger temperature
• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.
8.4.7.
Anti-Dew Formation Control
• Purpose is to prevent dew formation on indoor unit discharge area.
• When room temperature is constant (±1°C) the following condition occur for 30 minutes continuously, anti-dew formation will
activate:
- Indoor intake temperature is more than 24°C and less than 30°C.
- Remote Control setting temperature is less than 25°C.
- Compressor is on.
- Cooling Operation Mode.
- Indoor fan motor operate at Low fan speed or QLo.
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• Anti-Dew Formation is control by:• Increasing Air Flow Volume
1. Lo fan speed.
Lo fan speed is changed to Lo+ after 30 min to prevent dew formation.
2. QLo fan speed.
Dew formation may occur at QLo cool, therefore QLo cool is operated only 1hr 30min (1 hr QLo, 30 min QLo + 80 rpm). After
that, it operates at QLo + 160 rpm (However Quiet LED remains on).
• Narrowing
1. Vertical Airflow Direction
During Anti-Dew condensation prevention, Airflow Direction Auto-control angle from 0° - 32° to 20° - 30° under cooling and
Soft Dry operation mode.
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During Anti-Dew condensation prevention, Airflow Direction Manual Control angle change from 10°, 15°, 20°, 32° to 22°,
24°, 26°, 28°, 30°.
8.5.
Indoor Fan Speed Control
• Indoor Fan Speed can be set using remote control.
8.5.1.
Fan Speed Rotation Chart
Speed
S Hi
Hi
Me
H Lo
C Lo
LoS Lo
SS Lo
Q S Hi
Q Hi
Q Me
QH Lo
Q Lo
Fan Speed
CS-C9DKD
1290
1210
1040
940
860
810
760
1110
940
760
CS-C7DKD
1210
1100
990
940
860
810
760
1000
890
760
25
CS-C12DKD
1300
1270
1050
980
890
840
790
1170
950
790
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8.5.2.
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 and Me.
− 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.
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• 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.
8.5.3.
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.
8.6.
Outdoor Fan Speed Control
• There is only one speed for outdoor fan motor.
• 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.
8.7.
8.7.1.
Vertical Airflow Direction Control
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 stop operation using the 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.
8.7.2.
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.
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8.8.
Horizontal Airflow Direction Control
• The horizontal airflow direction louvers can be adjusted manually by hand.
8.9.
Powerful Operation
• The Powerful operation is 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 will be running under SHi Fan Speed (Cooling), Lo- Fan Speed (Soft Dry).
• Vertical Airflow Direction:- In “Manual” setting, the vane will automatically shift down 10° lower than previous.
- In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10° downward.
• Powerful Mode will operate for 15 minutes only and operation will shift back to previous setting mode.
• Powerful operation stops when:- Powerful mode button is pressed again.
- Stopped by OFF/ON operation button.
- Timer OFF activates.
- Quiet mode button is pressed.
- Operation mode button is changed.
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8.10. Quiet Operation
(For Cooling Operation or cooling region of Soft Dry Operation)
• The Quiet operation is to provide quiet/cooling operation condition compare to normal operation.
• 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.
• Dew formation become severe at Quiet Lo cool, therefore Quiet Lo cool is operated only 1hr 30 min (1hr QLo, 30 min QLo +
80 rpm). After that, it goes back to Lo cool (However Quiet LED remains on).
• Manual Airflow Direction:− RPM control during Lo cool
− RPM control during Hi cool
• Auto Airflow Direction:-
• Quiet operation stops when:− Quiet button is pressed again.
− Stopped by OFF/ON operation button.
− Timer OFF activates.
− Powerful button is pressed.
− Operation mode button is changed.
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8.11. Ionizer Operation
• The Ionizer operation is to provide fresh air effect to user by producing minus ion in discharge air.
8.11.1. Operation Control
1. Ionizer individual operation
a. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at the remote control is pressed, the
Ionizer operation will turn on. Only ION LED will illuminates. Power LED maintain off. (1 → 2)
b. Ionizer individual operation can be turned off by pressing the ION button again. (2 → 1)
c. Fan speed can be adjusted later by customer during this operation.
d. Vertical airflow direction can be adjusted using remote control during Ionizer individual operation.
e. During Ionizer individual operation, operated mode (Auto, Cool, Dry) can be activated by turning on the OFF/ON operation
button. (2 → 4)
f. If power failure occur during Ionizer individual operation, after power resume, Ionizer operation will be activated immediately.
g. When the Ionizer circuit feedback process error occur for 24 times (about 11hr 30 min.), Ionizer operation will turn off with
ION LED blinks continuously.
(For details, please refer to Ionizer Error detection control)
2. Operation mode & Ionizer operation.
a. When air-conditioner unit is at “ON” condition and ION operation button at the remote control is pressed, the Ionizer
operation will turn on. ION & Power LED will illuminate. (3 → 4)
b. Ionizer operation stops when:
• ION operation button is press again.
• Stopped by OFF/ON operation button.
• Timer OFF activates.
• Ionizer circuit feedback signal shows error.
c. Ionizer operation status is not memorised when the air conditioner has been switched off. The air-conditioner will operate
without ionizer operation when it is turned on again. However, if power failure occurs during Ionizer operation together with
Cooling operation, air-conditioner will start to operate at Cooling operation with Ionizer operation when the power is
resumed.
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8.11.2. Error Detection Control
• The error detection control is to inform user that error occurs at ionizer system and repairing job will be needed.
• There are two types of error detection control:
a. When Ionizer is ON
− If ionizer feedback = Lo for 24 times within 11hr 30min, ION LED blinks continuously.
b. When ionizer is OFF
− If ionizer feedback = Hi, ION LED blinks continuously.
• During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become normal), ION LED will stop blinking.
• The error detection control can be reset by:
i) Pressing the OFF/ON operation button to switch the operation OFF.
ii) Pressing the Auto Operation button to force the operation OFF.
iii) Setting the OFF Timer to stop the operation (Not applicable when ionizer is OFF).
8.12. Timer Control
• There are 2 types of timer, ON and OFF timer.
• Both ON and OFF timer can be set by pressing ON or OFF button respectively.
• By pressing ON/OFF operation button, ON Timer or OFF Timer will not be cancelled.
• To cancel the previous timer setting, press CANCEL button.
• To activate the previous timer setting, press SET button once again.
• If main power supply is switched off, the timer setting will be cancelled.
8.12.1. ON Timer
• When 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 25 seconds, 30 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.
8.12.2. OFF Timer
• When OFF Timer is set by using the remote control, the unit will stop operate according to the desired setting.
8.13. 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.
• This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)(Indoor PCB)
8.14. Remote Control Signal Receiving Sound
• Long beep sound will be heard when:− Stopping the air conditioner using ON/OFF switch.
− Stopping the Quiet Mode.
− Stopping the Powerful Mode.
− Stopping the Ion Mode.
• Short beep sound will be heard for others setting.
• To switch off the beep sound:Press the “Auto Operation Button” (behind the front grille) continuously for 10 seconds or more (“beep” “beep” will be heard at
the 10th second). Repeat the above if you want to switch on the beep sound.
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9 Operating Instructions
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10 Installation Instructions
1. Philips screw driver
2. Level gauge
Required tools for Installation Works
5. Spanner
9. Gas leak detector
6. Pipe cutter
10. Measuring tape
3. Electric drill, hole core drill 7. Reamer
(ø70 mm)
4. Hexagonal wrench (4 mm) 8. Knife
11. Thermometer
13. Multimeter
14. Torque wrench
18 N.m (1.8 kgf.m)
42 N.m (4.2 kgf.m)
55 N.m (5.5 kgf.m)
15. Vacuum pump
12. Megameter
16. Gauge manifold
10.1. Safety Precautions
• Read the following “SAFETY PRECAUTIONS” carefully before installation.
• Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit
for the model to be 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 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 only.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
• Carry out test running to confirm that no abnormality occurs after the installation. 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. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.
2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
electrical shock.
4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly
done, the set will drop and cause injury.
5. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and single
outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
6. Use the specified cable (1.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no
external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will
cause heat-up at connection point of terminal, fire or electrical shock.
8. When 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, explosion and injury.
9. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.
10. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with
other electrical appliances. Otherwise, it will cause fire or electrical shock.
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1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.
2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at
surrounding of the unit, it may cause fire.
3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
1.
Selection of the installation location.
Select a installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.
2. Power supply connection to the room air conditioner.
Connect the power supply cord of the room air conditioner to the mains using one of the following method.
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.
In some countries, permanent connection of this room air conditioner to the power supply is prohibited.
1. Power supply connection to the receptacle using a power plug.
Use an approved 15A/16A power plug with earth pin for the connection to the socket.
2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the permanent
connection. It must be a double pole switch with a minimum 3 mm contact gap.
3. Do not release refrigerant.
Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts. Take care of the
liquid refrigerant, it may cause frostbite.
4. Installation work.
It may need two people to carry out the installation work.
5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
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10.2. Attached accessories
10.4. Indoor/Outdoor Unit
Installation Diagram
Applicable piping kit
CZ-3F5, 7AEN (C7DK, C9DK, A7DK, A9DK, )
CZ-4F5,7, 10AN (C12DK, A12DK)
10.3. Select the best location
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
consideration.
noise
prevention
is
taken
into
• 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 2.3 m.
OUTDOOR UNIT
• If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from the
condenser is not obstructed.
• There should not be any animal or plant which could be
affected by hot air discharged.
• Keep the spaces indicated by arrows from wall, ceiling,
fence or other obstacles.
• This illustration is for explanation purposes only.
The indoor unit will actually face a different way.
• Do not place any obstacles which may cause a short
circuit of the discharged air.
• If piping length is over the common length, additional
refrigerant should be added as shown in the table.
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10.5. Indoor unit
10.5.1. SELECT THE BEST LOCATION
(Refer to “Select the best location”
section)
10.5.3. TO DRILL A HOLE IN THE WALL
AND INSTALL A SLEEVE OF
PIPING
1. Insert the piping sleeve to the hole.
10.5.2. HOW TO FIX INSTALLATION
PLATE
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the wall.
The mounting wall is strong and solid enough to prevent it from
the vibration.
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 450 mm
at right and left of the wall.
The distance from installation plate edge to ceiling should more
than 67 mm.
From installation plate left edge to unit’s left side is 74 mm.
From installation plate right edge to unit’s right is 94 mm.
: For left side piping, piping connection for liquid should be
about 15 mm from this line.
: For left side piping, piping connection for gas should be
about 45 mm from this line.
: For left side piping, piping connecting cable should be
about 800 mm from this line.
10.5.4. INDOOR UNIT INSTALLATION
1. For the right rear piping
1. Mount the installation plate on the wall with 5 screws or
more.
(If mounting the unit on the concrete wall consider using
anchor bolts.)
• Always mount the installation plate horizontally by
aligning the marking-off line with the thread and using a
level gauge.
2. For the right and right bottom 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.
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3. For the embedded piping
(This can be used for left rear piping & left bottom piping also.)
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10.5.5. CONNECT THE CABLE TO THE
INDOOR UNIT
INSTALLATION OF SUPER ALLERU-BUSTER FILTER
1. The inside and outside connecting cable can be connected
without removing the front grille.
1. Open the front panel.
2. Remove the air filters.
2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 3 (C7DK,
C9DK, C12DK) or 5 (A7DK, A9DK, A12DK) × 1.5 mm2
flexible cord, type designation 245 IEC 57 or heavier cord.
3. Remove Supersonic air purifying device.
Open the Supersonic air purifying device frame.
• Ensure the color of wires of outdoor unit and the
terminal Nos. are the same to the indoor’s respectively.
Insert the super alleru-buster filter and close the Supersonic
air purifying device frame as shown in illustration at below.
• 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).
HOW TO TAKE OUT FRONT GRILLE
Please follow the steps below to take out front grille if
necessary such as when servicing.
1. Open the intake grille and remove the screw at the front of
the front grille.
2. Set the vertical airflow direction louver to the horizontal
position.
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3. Slide down the 2 caps on the front grille as shown in the
illustration at right, and then remove the 2 mounting screws.
10.6. Outdoor unit
10.6.1. SELECT THE BEST LOCATION
(Refer to “Select the best location”
section)
Pull the lower section of the front grille towards you to
remove the front grille.
When reinstalling the front grille, first set the vertical
airflow direction louver to the horizontal position and
then carry out above steps 2 - 3 in the reverse order.
10.6.2. 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.
AUTO SWITCH OPERATION
The below operations will be performed by pressing the
“AUTO” switch.
1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the
Auto Switch is pressed.
2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING
PURPOSE)
The Test Run operation will be activated if the Auto Switch
is pressed continuously for more than 5 sec. to below 10
sec. A “pep” sound will occur at the fifth sec., in order to
identify the starting of Test Run operation
3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF
The ON/OFF of Remote Controller receiving sound can be
change over by the following steps:
10.6.3. CONNECTING THE PIPING
a) Release the Auto Switch after Test Run operation is
activated.
Connecting The Piping To Indoor Unit
b) Then, within 20 sec. after (a), press Auto Switch for more
than 5 sec..A “beep” “beep” sound will occur at the fifth
sec., then release the Auto Switch.
Please make flare after inserting flare nut (locate at joint portion
of tube assembly) onto the copper pipe. (In case of using long
piping)
c) Within 20 sec. after (b), press Auto Switch again.
Everytime Auto Switch is pressed (within 20 sec. interval),
remote controller receiving sound status will be reversed
between ON and OFF.
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.
Long “beep” sound indicates that remote controller
receiving sound is OFF.
Short “beep” sound indicates that remote controller
receiving sound is ON.
MODEL
C7DK, C9DK, A7DK, A9DK
C12DK, A12DK
Piping size (Torque)
Gas
Liquid
3/8” (42 N.m) 1/4” (18 N.m)
1/2” (55 N.m) 1/4” (18 N.m)
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove
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burrs from cut edge. Make flare after inserting the flare nut
(located at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torque
wrench to the specified torque as stated in the table.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not
removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder
entering the pipe.
3. Please make flare after inserting the flare nut onto the
copper pipes.
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10.6.4. 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 and High 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.
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 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.
CAUTION
• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• 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.
10.6.5. 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 × 1.5 mm2 flexible cord,
type designation 245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
4. Attach the control board cover back to the original position with the screw.
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10.6.6. 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.
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.
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
• If the drain elbow is used, the unit should be placed on a
stand which is taller than 3cm.
• If the unit is used in an area where temperature falls below
0° C for 2 or 3 days in succession, it is recommended not to
use a drain elbow, for the drain water freezes and the fan
will not rotate.
CHECK THE DRAINAGE
• Open front panel and remove air filters.
(Drainage checking can be carried out without removing the
front grille.)
• Pour a glass of water into the drain tray-styrofoam.
• Ensure that water flows out from drain hose of the indoor
unit.
EVALUATION OF THE PERFORMANCE
• Operate the unit at cooling operation mode for fifteen
minutes or more.
• Measure the temperature of the intake and discharge air.
• Ensure the difference between the intake temperature and
the discharge is more than 8°C.
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CHECK ITEMS
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nut
connection?
Is the connecting cable being fixed to terminal board firmly?
Is the connecting cable being clamped firmly?
Is the drainage OK?
(Refer to “Check the drainage” section)
Is the earth wire connection properly done?
Is the indoor unit properly hooked to the installation plate?
Is the power supply voltage complied with rated value?
Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation normal?
Is the remote control’s LCD operation normal?
Is the super alleru-buster filter installed?
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11 2-way, 3-way Valve
2-way Valve (Liquid Side)
3-way Valve (Gas Side)
Works
Shaft Position
Shaft Position
Service Port
Shipping
Close
(With valve cap)
Close
(With valve cap)
Close
(With cap)
Evacuation
(Installation and
Re-installation)
Close
(Counter-Clockwise)
Close
(Clockwise)
Open
(Push-pin)
Operation
Open
(With valve cap)
Open
(With valve cap)
Close
(With cap)
Pumping down
(Transferring)
Close
(Clockwise)
Open
(Counter-Clockwise)
Open
(Connected manifold
gauge)
Evacuation
(Servicing)
Open
Open
Open
With vacuum pump
Gas charging
(Servicing)
Open
Open
Open
(With charging cylinder)
Pressure check
(Servicing)
Open
Open
Open
(Connected manifold
gauge)
Gas releasing
(Servicing)
Open
Open
Open
(Connected manifold
gauge)
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11.1. Evacuation of the Equipment
11.1.1. Evacuation of Installation
If air remain in the indoor unit and refrigeration pipes, it will
affect the compressor, reduce to cooling capacity, and could
lead to a malfunction.
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO
EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES
in the following procedure.
Procedure:
5. Disconnect the charging hose from the vacuum pump
and from the service port of the 3-way valve.
1. Connect a charging hose with a push pin to the Low
side of a charging set and the service port of a 3-way
valve.
6. Tighten the service port cap at a torque of 18 N.m with
a torque wrench.
• Be sure to connect the end of the charging hose with the
push pin to the service port.
7. Remove the valve caps of the 2-way valve and the 3way valve. Position both of the valves to “open” using
a hexagonal wrench (4 mm).
2. Connect the centre hose of the charging set to a
vacuum pump.
8. Mount the valve caps onto the 2-way and 3-way valves.
3. Turn on the power switch of the vacuum pump and
make sure that the needle in the gauge moves from 0
MPa (0 cmHg) to -0.1 MPa (-76 cmHg). Then evacuate
the air for approximately ten minutes.
• Be sure to check for gas leakage.
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.
Caution
If gauge needle does not move from 0 cmHg to -76
cmHg in step (3) above, take the following measures:
BE SURE TO TAKE THIS PROCEDURE IN ORDER TO
AVOID GAS LEAKAGE.
If the leaks stop when the piping connections are
tightened further, continue working from step (3).
If the leaks do not stop when the connections are
retightened, repair the location of the leak.
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11.1.2. Pumping down
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to
the opened position.
6. Operate the air conditioner at the cooling cycle and
stop it when the gauge indicates 0 MPa (0 kg/cm2G).
• Remove the valve stem caps and confirm that the valve
stems are in the opened position.
If the unit cannot be operated at the cooling condition
(weather is rather cool), short the Pumping Down pins
on the Main Control P.C.B.
• Be sure to use a hexagonal wrench to operate the valve
stems.
(Simply press the pumping down button if it is
equipped.)
2. Operate the unit for 10 to 15 minutes.
So that the unit can be operated.
3. Stop operation and wait for 3 minutes, then connect the
charge set to the service port of the 3-way valve.
7. Immediately set the 3-way valve to the closed position.
• Connect the charge hose with the push pin to the Gas
service port.
• Do this quickly so that the gauge ends up indicating 0.1
MPa (1 kg/cm2G) to 0.3 MPa (3 kg/cm2G).
4. Air purging of the charge hose.
8. Use refrigerant reclaiming equipment
refrigerant from indoor unit and pipes.
• Open the low-pressure valve on the charge set slightly
to purge air from the charge hose.
to
collect
9. Disconnect the charge set, and mount the 2-way and 3way valve’s stem caps and the service port caps.
5. Set the 2-way valve to the closed position.
• Use a torque wrench to tighten the service port cap to a
torque of 18 N.m.
• Be sure to check for gas leakage.
10. Disconnect pipes from indoor unit and outdoor unit.
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11.1.3. Evacuation of Re-installation
If air remain in the indoor unit and refrigeration pipes, it will
affect the compressor, reduce to cooling capacity, and could
lead to a malfunction.
WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TO
EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES
in the following procedure.
Procedure:
7. Tighten the service port cap at a torque of 18 N.m with
a torque wrench.
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.
8. Remove the valve caps of the 2-way valve and the 3way valve. Position both of the valves to “open” using
a hexagonal wrench (4 mm).
• Be sure to connect the end of the charging hose with the
push pin to the service port.
9. Mount the valve caps onto the 2-way and 3-way valves.
2. Connect the centre hose of the charging set to a
vacuum pump.
• BE SURE TO USE REFRIGERANT RECLAIMING
EQUIPMENT
WHILE
DISCHARGING
THE
REFRIGERANT.
3. Turn on the power switch of the vacuum pump and
make sure that the needle in the gauge moves from 0
MPa (0 cmHg) to -0.1 MPa (-76 cmHg). Then evacuate
the air for approximately ten minutes.
• Purge the air from charge set’s centre hose.
• Be sure to check for gas leakage.
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.
Caution
If gauge needle does not move from 0 MPA (0 cmHg)
to -0.1 MPa (-76 cmHg) in step (3) above, take the
following measures:
BE SURE TO TAKE THIS PROCEDURE IN ORDER TO
AVOID GAS LEAKAGE.
If the leaks stop when the piping connections are
tightened further, continue working from step 3.
5. Disconnect the charging hose from the vacuum pump.
6. Charge the pipes and indoor unit with gas refrigerant
from 3-way valve service port, and then discharge the
refrigerant until low side (gas side) gauge needle
indicates 0.3 MPa (3 kg/cm2).
If the leaks do not stop when the connections are
retightened, repair the location of the leak.
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11.1.4. Balance refrigerant of the 2-way, 3-way valves
(Lack of refrigerant in the refrigeration cycle)
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to
the open position.
2. Connect the charge set to the 3-way valve’s service
port.
• Leave the valve on the charge set closed.
• Connect the charge hose with the push-pin to the
service port.
3. Connect the charge set’s centre hose to refrigerant
reclaiming equipment.
• Purge the air from charge hose.
4. Open the valve (Low side) on the charge set and
discharge the refrigerant until the gauge indicates 0.05
MPa (0.5 kg/cm2G) to 0.1 MPa (1 kg/cm2G).
• If there is no air in the refrigeration cycle (the pressure
when the air conditioner is not running is higher than 0.1
MPa (1 kg/cm2G), discharge the refrigerant until the
gauge indicates 0.05 MPa (0.5 km/cm2G) to 0.1 MPa (1
kg/cm2G). If this is the case, it will not be necessary to
apply a evacuation.
• Discharge the refrigerant gradually; if it is discharged
too suddenly, the refrigeration oil will also be
discharged.
5. Turn on refrigerant reclaiming equipment.
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11.1.5. Evacuation
(No refrigerant in the refrigeration cycle)
Procedure:
1. Connect the vacuum pump to the charge set’s centre
hose.
2. Evacuation for approximately one hour.
• Confirm that the gauge needle has moved toward -0.1
MPa (-76 cmHg) [vacuum of 4 mmHg or less.]
3. Close the valve (Low side) on the charge set, turn off
the vacuum pump, and confirm that the gauge needle
does not move (approximately 5 minutes after turning
off the vacuum pump).
4. Disconnect the charge hose from the vacuum pump.
• Vacuum pump oil
If the vacuum pump oil becomes dirty or depleted,
replenish as needed.
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11.1.6. Gas charging
(After Evacuation)
Procedure:
1. Connect the charge hose to the charging cylinder.
This is different from previous procedures. Because you are
charging with liquid refrigerant from the gas side, absolutely do
no attempt to charge with large amount of liquid refrigerant
while operating the air conditioner.
• Connect the charge hose which you disconnected from
the vacuum pump to the valve at the bottom of the
cylinder.
2. Purge the air from the charge hose.
• Open the valve at the bottom of the cylinder and press
the check valve on the charge set to purge the air (be
careful of the liquid refrigerant).
4. Immediately disconnect the charge hose from the 3way valve’s service port.
• Stopping partway will allow the refrigerant to be
discharged.
3. Open the valve (Low side) on the charge set and charge
the system with liquid refrigerant.
• If the system has been charged with liquid refrigerant
while operating the air conditioner, turn off the air
conditioner before disconnecting the hose.
• If the system cannot be charged with the specified
amount of refrigerant, it can be charged with a little at a
time (approximately 150 g each time) while operating
the air conditioner in the cooling cycle; however, one
time is not sufficient, wait approximately 1 minute and
then repeat the procedure. (pumping down-pin)
5. Mount the valve stem caps and the service port cap.
• Use torque wrench to tighten the service port cap to a
torque of 18 N.m.
• Be sure to check for gas leakage.
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11.2. Air Purging of the Piping and Indoor Unit
11.2.1. Air purging (Installation)
The air in the indoor unit and in the piping must be purged. If air
remains in the refrigeration pipings, it will affect the
compressor, reduce the cooling capacity, and could lead to a
malfunction.
Required tools: hexagonal wrench, adjustable wrench, torque
wrenches, wrench to hold the joints and gas leak detector.
The additional gas for air purging has been charged in the
outdoor unit.
However, if the flare connections have not been done correctly
and there gas leaks, a gas cylinder and the charge set will be
needed.
Service port cap
Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that it prevents the gas
leakage from the refrigeration cycle.
Procedure:
1. Recheck the piping connections.
6. Set the 3-way valve to the opened position.
2. Open the valve stem of the 2-way valve counterclockwise approximately 90°, wait 10 seconds, and
then set it to closed position.
7. Mount the valve stem nuts to the 2-way and 3-way
valves.
• Be sure to use a hexagonal wrench to operate the valve
stem.
• At this time, especially check for gas leakage from the 2way and 3-way’s stem nuts, and from the service port
cap.
8. Check for gas leakage.
3. Check for gas leakage.
• Check the flare connection for gas leakage.
Caution
4. Purge the air from the system
If gas leakage is discovered in step (3) above, take
the following measures:
• Set the 2-way valve to the open position and remove the
cap from the 3-way valve’s service port.
If the leaks stop when the piping connections are
tightened further, continue working from step (4).
• Using the hexagonal wrench to press the valve core pin,
discharge for three seconds and then wait for one
minute.
Repeat this three times.
If the gas leaks do not stop when the connections are
retightened, repair the location of the leak, discharge
all of the gas through the service port, and then
recharge with the specified amount of gas from a gas
cylinder.
5. Use torque wrench to tighten the service port cap to a
torque of 1.8 kg.m. (18 N.m).
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11.2.2. Pumping down (Re-installation)
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to
the opened position.
5. Set the 2-way valve to the close position.
• Remove the valve stem caps and confirm that the valve
stems are in the opened position.
6. Operate the air conditioner at the cooling cycle and
stop it when the gauge indicates 1 kg/cm2G (0.1 MPa).
• Be sure to use a hexagonal wrench to operate the valve
stems.
7. Immediately set the 3-way valve to the closed position.
• Do this quickly so that the gauge ends up indicating 3 to
5 kg/cm2G (0.3 to 0.5 MPa).
2. Operate the unit for 10 to 15 minutes.
3. Stop operation and wait for 3 minutes, then connect the
charge set to the service port of the 3-way valve.
8. Disconnect the charge set, and mount the 2-way and 3way valve’s stem nuts and the service port caps.
• Connect the charge hose with the push pin to the Gas
service port.
• Use a torque wrench to tighten the service port cap to a
torque of 1.8 kg.m (18 N.m).
• Be sure to check for gas leakage.
4. Air purging of the charge hose.
• Open the low-pressure valve on the charge set slightly
to purge air from the charge hose.
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11.2.3. Re-air purging (Re-installation)
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to
the closed position.
5. Discharge the refrigerant.
• Close the valve on the charging cylinder and discharge
the refrigerant until the gauge indicates 3 to 5 kg/cm2G
(0.3 to 0.5 MPa)
2. Connect the charge set and a charging cylinder to the
service port of the 3-way valve.
• Leave the valve on the charging cylinder closed.
6. Disconnect the charge set and the charging cylinder,
and set the 2-way and 3-way valves to the open
position.
3. Air purging.
• Be sure to use a hexagonal wrench to operate the valve
stems.
• Open the valves on the charging cylinder and the
charge set. Purge the air by loosening the flare nut on
the 2-way valve approximately 45° for 3 seconds then
closing it for 1 minute; repeat 3 times.
7. Mount the valve stem nuts and the service port cap.
• After purging the air, use a torque wrench to tighten the
flare nut on the 2-way valve.
• Be sure to use a torque wrench to tighten the service
port cap to a torque 1.8 kg.m (18 N.m).
• Be sure to check for gas leakage.
4. Check for gas leakage.
• Check the flare connections for gas leakage.
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11.2.4. Balance refrigerant of the 2-way, 3-way valves
(Gas leakage)
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to
the open position.
2. Connect the charge set to the 3-way valve’s service
port.
• Leave the valve on the charge set closed.
• Connect the charge hose with the push pin to the
service port.
3. Open the valves (Low side) on the charge set and
discharge the refrigerant until the gauge indicates 0.5
to 1 kg/cm2G (0.05 to 0.1 MPa) .
• If there is no air in the refrigeration cycle [the pressure
when the air conditioner is not running is higher than 1
kg/cm2G (0.1 MPa)], discharge the refrigerant until the
gauge indicates 0.5 to 1 kg/cm2G (0.05 to 0.1 MPa). If
this is the case, it will not be necessary to apply a
evacuation.
• Discharge the refrigerant gradually; if it is discharged
too suddenly, the refrigeration oil will be discharged.
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11.2.5. Evacuation (Installation)
(No refrigerant in the refrigeration cycle)
Procedure:
1. Connect the vacuum pump to the charge set’s centre
hose.
2. Evacuation for approximately one hour.
• Confirm that the gauge needle has moved toward -0.1
MPa (-76 cmHg) [vacuum of 4 mmHg or less.]
3. Close the valve (Low side) on the charge set, turn off
the vacuum pump, and confirm that the gauge needle
does not move (approximately 5 minutes after turning
off the vacuum pump).
4. Disconnect the charge hose from the vacuum pump.
• Vacuum pump oil
If the vacuum pump oil becomes dirty or depleted,
replenish as needed.
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11.2.6. Gas charging
(After Evacuation)
Procedure:
1. Connect the charge hose to the charging cylinder.
This is different from previous procedures. Because you are
charging with liquid refrigerant from the gas side, absolutely do
no attempt to charge with large amount of liquid refrigerant
while operating the air conditioner.
• Connect the charge hose which you disconnected from
the vacuum pump to the valve at the bottom of the
cylinder.
2. Purge the air from the charge hose.
• Open the valve at the bottom of the cylinder and press
the check valve on the charge set to purge the air (be
careful of the liquid refrigerant).
4. Immediately disconnect the charge hose from the 3way valve’s service port.
• Stopping partway will allow the refrigerant to be
discharged.
3. Open the valve (Low side) on the charge set and charge
the system with liquid refrigerant.
• If the system has been charged with liquid refrigerant
while operating the air conditioner, turn off the air
conditioner before disconnecting the hose.
• If the system cannot be charged with the specified
amount of refrigerant, it can be charged with a little at a
time (approximately 150 g each time) while operating
the air conditioner in the cooling cycle; however, one
time is not sufficient, wait approximately 1 minute and
then repeat the procedure. (pumping down-pin)
5. Mount the valve stem caps and the service port cap.
• Use torque wrench to tighten the service port cap to a
torque of 18 N.m.
• Be sure to check for gas leakage.
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12 Servicing Information
12.1. Distinction of Lead Free (PbF) Printed Circuit Board
• Printed circuit boards (manufactured) using lead free solder will have a PbF stamp on the Printed Circuit board.
CAUTION
• Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature solder iron and 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).
• If you must use Pb solder, please completely remove all of the Pb free solder on the pin or solder area before applying Pb
solder. If this is not pratical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
12.2. Indoor Electronic Controller Removal Procedures
• Electronic controller and Display Complete unit can be seen
by following the below removal procedures.
Fig. 1
− Remove the 2 caps and 2 screws at the bottom of the
Front Grille.(Fig.1)
Fig. 3
− Release the taps on top and on the right side of metal
plate cover.(Fig.3)
− Then remove the metal plate cover.(Fig.3)
− Remove the indicator complete screw, and then remove
the indicator complete.(Fig.3)
Fig. 2
− Remove the Front Grille Complete. (Fig.2)
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− Release CN-TH connector (Fig.4)
− Release CN-STM connector (Fig.4)
− Release CN-REC/DISP connector (Fig.4)
Fig. 4
− To remove the electronic controller.
− Remove the particular piece (Fig.4).
− Release CN-FM connector (Fig.4)
Fig. 5
− Release CN-Sonic connector (Fig.4)
− Press the hook to the right then take out the PCB (Fig.5)
− Release CN-FB connector (Fig.4)
− Remove Ry-Pwr connector (black and brown) and AcWht connector from the PCB. (Fig.5)
− Release CN-ION connector (Fig.4)
12.3. Indoor Fan Motor and Cross Flow Fan Removal Procedures
• Remove Control Board cover
Fig. 6
Fig. 7
− Remove the screw on the left side of the unit. (Fig.6)
− Pull the hook to the left and lift up the evaporator. (Fig.
6)
− Pull down the Discharge Grille Complete. (Fig.6)
Fig. 8
− Remove indoor pipe sensor and air intake sensor from
the evaporator. (Fig.7)
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− Remove the earth wire from the evaporator. (Fig.7)
− Remove the cross flow fan bushing from the chassis.
(Fig.9)
− Release the generator complete wire (green and red).
(Fig.8)
− Loosen the fan boss screw at the cross flow fan. (Fig.9)
− Remove 2 screws on the right and 1 screw at the left
side of the control board. (Fig.7)
− Press down the hook on the left side of control board.
(Fig.7)
− Then pull out the Control Board Complete from the unit.
(Fig.7)
Fig. 10
− Push up the evaporator and remove cross flow fan by
pulling both cross flow fan and fan motor. (Fig.10)
Fig. 9
12.4. Auto OFF/ON Button
• The “Auto OFF/ON Button” (behind the front grille) is used to operate the air conditioner if remote control is misplaced or
mulfunctioning.
• Forced cooling operation is possible by pressing the “Auto OFF/ON Button” for more than 5s where “beep” sound is heard then
release the button.
• User able to select remote control transmission code and toggle remote control signal receiving sound under various setting
mode.
• To enter various setting mode:
− Press the “Auto OFF/ON Button” continuously for 5s (“beep” sound is heard) and release.
− Within 20s, press the “Auto OFF/ON Button” continuously for 5s again (2 “beep” sound is heard) and release.
− Various setting mode has limit up to 20s. Then return to normal operation.
12.4.1. Toggle Remote Control Signal Receiving Sound
• Under various setting mode, press the “Auto OFF/ON Button” to toggle the remote control sound.
− Short “beep”: Turn ON remote control signal receiving sound.
− Long “beep”: Turn OFF remote control signal receiving sound.
• After “Auto OFF/ON Button” is pressed, the 20s counter for various setting mode is restarted.
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12.4.2. Remote Control Transmission Code
• There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit
will only operate when received signal with same transmission code from remote control. This could prevent signal interference
when there are 2 or more indoor unit installed nearby together.
• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.
• Under various setting mode, after select the transmission code combination of remote control, press any button of remote
control to transmit a signal to indoor unit. The transmission code will be stored in EEPROM.
• After signal is received, the various setting mode is cancelled and return to normal operation.
12.5. Remote Control Reset
• When the batteries are inserted for the first time or the
batteries are replaced, you may notice the indications at
remote control’s display screen blink continuously and not
functionable. If this condition happens, try to reset the
remote control by pushing the reset terminal with a pointing
device.
• You may also do the reset to erase the setting at remote
control and restore back the default setting.
65
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
13 Troubleshooting Guide
13.1. Refrigeration cycle system
In order to diagnose malfunctions, make sure that there is no
electrical problem before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of compressor or fan motor.
The normal outlet air temperature and pressure of the
refrigeration cycle depend on various conditions, the standard
values for them are shown in the table to the right.
66
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
13.2. 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.
13.3. 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 90°C).
• 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.
67
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
14 Technical Data
14.1. Thermostat characteristics
14.2. Sensible Capacity Chart
CS-C7DKD
220V
Indoor wet
bulb temp.
17.0°C
19.0°C
19.5°C
22.0°C
230V
Indoor wet
bulb temp.
17.0°C
19.0°C
19.5°C
22.0°C
Outdoor Temp.
TC
1.98
30°C
SHC
1.50
IP
0.54
2.18
2.37
1.57
1.63
0.55
0.56
TC
2.00
30°C
SHC
1.52
IP
0.59
2.20
2.40
1.59
1.65
0.60
0.61
TC
2.58
30°C
SHC
1.96
IP
0.73
2.83
3.09
2.05
2.12
0.75
0.76
TC
2.63
30°C
SHC
1.99
TC
1.85
2.00
2.04
2.22
35°C
SHC
1.44
1.51
1.57
IP
0.58
0.59
0.59
0.60
TC
1.72
40°C
SHC
1.39
IP
0.62
TC
1.57
46°C
SHC
1.32
IP
0.67
1.89
2.06
1.46
1.51
0.63
0.64
1.72
1.88
1.39
1.44
0.68
0.70
TC
1.74
40°C
SHC
1.40
IP
0.67
TC
1.58
46°C
SHC
1.33
IP
0.73
1.91
2.08
1.47
1.53
0.69
0.70
1.74
1.89
1.40
1.46
0.74
0.75
TC
2.24
40°C
SHC
1.80
IP
0.84
TC
2.04
46°C
SHC
1.71
IP
0.91
2.46
2.68
1.89
1.97
0.86
0.87
2.24
2.44
1.80
1.88
0.93
0.94
40°C
SHC
1.84
IP
0.87
TC
2.08
46°C
SHC
1.75
IP
0.94
Outdoor Temp.
TC
1.87
2.02
2.06
2.24
35°C
SHC
1.46
1.53
1.59
IP
0.63
0.64
0.64
0.65
CS-C9DKD
220V
Indoor wet
bulb temp.
17.0°C
19.0°C
19.5°C
22.0°C
230V
Indoor wet
bulb temp.
17.0°C
19.0°C
Outdoor Temp.
TC
2.41
2.60
2.65
2.88
35°C
SHC
1.88
1.97
2.04
IP
0.79
0.80
0.80
0.82
Outdoor Temp.
IP
0.76
TC
2.46
2.65
35°C
SHC
1.91
IP
0.81
0.83
68
TC
2.28
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
230V
19.5°C
22.0°C
2.89
3.15
2.09
2.16
0.77
0.78
TC
3.49
30°C
SHC
2.65
IP
1.02
3.83
4.18
2.77
2.87
1.04
1.05
TC
3.51
30°C
SHC
2.66
IP
1.04
3.86
4.20
2.79
2.89
1.05
1.07
2.70
2.94
2.00
2.08
Outdoor Temp.
0.83
2.51
0.84
2.73
1.93
2.01
0.89
0.90
2.28
2.49
1.84
1.91
0.96
0.97
TC
3.03
40°C
SHC
2.44
IP
1.17
TC
2.76
46°C
SHC
2.32
IP
1.26
3.33
3.63
2.56
2.67
1.19
1.21
3.03
3.30
2.44
2.54
1.29
1.31
TC
3.05
40°C
SHC
2.45
IP
1.19
TC
2.78
46°C
SHC
2.33
IP
1.28
3.35
3.65
2.58
2.68
1.21
1.24
3.05
3.32
2.45
2.56
1.31
1.33
CS-C12DKD
220V
Indoor wet
bulb temp.
17.0°C
19.0°C
19.5°C
22.0°C
230V
Indoor wet
bulb temp.
17.0°C
19.0°C
19.5°C
22.0°C
Outdoor Temp.
TC
3.26
3.52
3.58
3.90
35°C
SHC
2.54
2.66
2.76
IP
1.09
1.11
1.11
1.13
Outdoor Temp.
TC
3.28
3.54
3.60
3.93
35°C
SHC
2.55
2.68
2.78
IP
1.11
1.13
1.13
1.15
TC - Total Cooling Capacity (kW)
SHC - Sensible Heat Capacity (kW)
IP - Input Power (kW)
Indoor 27°C/19°C
Outdoor 35°C/24°C
14.3. Operation characteristics
14.3.1. CS-C7DK CU-C7DK
69
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
14.3.2. CS-C9DK CU-C9DK
14.3.3. CS-C12DK CU-C12DK
70
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
15 Exploded View (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.
71
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
16 Replacement Parts List (Indoor Unit)
<Model: CS-C7DKD / CS-C9DKD / CS-C12DKD >
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PART NAME & DESCRIPTION
CHASSY COMPLETE
FAN MOTOR
CROSS FLOW FAN COMPLETE
BEARING ASS’Y
SCREW - CROSS FLOW FAN
EVAPORATOR
FLARE NUT
FLARE NUT
INTAKE AIR SENSOR HOLDER
DISCHARGE GRILLE COMPLETE
VERTICAL VANE
CONNECTING BAR
CONNECTING BAR
AIR SWING MOTOR
LEAD WIRE - AIR SWING MOTOR
CAP - DRAIN TRAY
HORIZONTAL VANE
BACK COVER CHASSIS
CONTROL BOARD CASING
TERMINAL BOARD COMPLETE
POWER SUPPLY CORD
ELECTRONIC CONTROLLER - MAIN
SENSOR COMPLETE
CONTROL BOARD FRONT COVER
ELEC CONT - INDICATOR AND RCVR
INDICATOR HOLDER
INDICATOR HOLDER
CONTROL BOARD TOP COVER
REMOTE CONTROL COMPLETE
FRONT GRILLE COMPLETE
INTAKE GRILLE COMPLETE
GRILLE DOOR
AIR FILTER
SCREW - FRONT GRILLE
CAP - FRONT GRILLE
DRAIN HOSE
INSTALLATION PLATE
BAG COMPLETE - INSTALLATION SCREW
FULCRUM
ELECTRONIC CONTROLLER - IONIZER
CASING - IONIZER
CASING - IONIZER
ION GENERATOR
SUPERSONIC AIR PURIFYING DEVICE
ELEC. CONTROLLER - SUPERSONIC
SUPER ALLERU BUSTER FILTER
FRAME FR AIR FILTER SUPERSONIC
FRAME FR AIR FILTER SUPERSONIC
QTY.
1
1
1
1
1
1
1
1
1
1
9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
CS-C7DKD
CWD50C1377
CWA921181
CWH02C1031
CWH64K007
CWH4580304
CWB30C1602
CWT25078(1/4”)
CWT25005 (3/8”)
CWH32142
CWE20C2366
CWE241150
CWE261066
CWE261070
CWA98260
CWA67C3977
CWH521096
CWE241173
CWD932454
CWH102259
CWA28C2073
CWA20C2159
CWA743652
CWA50C2122
CWH131207
CWE39C1115
CWD932429
CWD932430
CWH131195
CWA75C2600
CWE11C3125
CWE22C1154
CWE141073
CWD001144
XTN4+16C
CWH521109
CWH851063
CWH361067
CWH82C067
CWH621046
CWA743675
CWD932464
CWD932431
CWH94C0001
CWH91C1013
CWA743874
CWD00C1133
CWD011026
CWD011027
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
• “O” marked parts are recommended to be kept in stock.
72
CS-C9DKD
←
←
←
←
←
CWB30C1676
←
←
CWH32143
←
←
←
←
←
←
←
←
←
←
←
←
CWA743653
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
CS-C12DKD
←
←
←
←
←
CWB30C1552
←
CWT25007 (1/2”)
←
←
←
←
←
←
←
←
←
←
←
CWA28C2075
←
CWA743663
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
REMARKS
0
0
0
0
0
0
0
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
17 Exploded View (Outdoor Unit)
CU-C7DKD/CU-C9DKD
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.
73
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
CU-C12DKD
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.
74
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
18 Replacement Parts List (Outdoor Unit)
<Model: CU-C7DKD / CU-C9DKD / CU-C12DKD>
REF.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
PART NAME & DESCRIPTION
QTY.
CHASSY ASS’Y
SOUND PROOF MATERIAL
FAN MOTOR BRACKET
SCREW - FAN MOTOR BRACKET
FAN MOTOR
SCREW - FAN MOTOR MOUNT
PROPELLER FAN ASS’Y
NUT - PROPELLER FAN
COMPRESSOR
ANTI - VIBRATION BUSHING
NUT - COMPRESSOR MOUNT
CONDENSER
CAPILLARY TUBE ASS’Y
STRAINER
HOLDER COUPLING ASS’Y
2-WAY VALVE (LIQUID)
3-WAY VALVE (GAS)
FLARE NUT
FLARE NUT
OVERLOAD PROTECTOR
HOLDER - O.L.P.
TERMINAL COVER
NUT - TERMINAL COVER
SOUND PROOF BOARD
CONTROL BOARD
TERMINAL BOARD ASS’Y
CAPACITOR - COMPRESSOR
1
1
1
2
1
3
1
1
1
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
28
29
HOLDER CAPACITOR
CAPACITOR - FAN MOTOR
1
1
30
31
32
33
34
35
36
37
38
39
CABINET SIDE PLATE (L)
CABINET SIDE PLATE (R)
CABINET FRONT PLATE
WIRE NET
CABINET TOP PLATE
PLATE - C. B. COVER
CONTROL BOARD COVER COMP
HANDLE
OPERATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
1
1
1
1
1
1
1
1
1
1
CU-C7DKD
CWD50K2107
CWG302254
CWD541069
CWH551060
CWA951379
CWH55406
CWH03K1020
CWH56053
2RS122D5BC02
CWH50077
CWH56000
CWB32C1627
CWB15K1140
CWB11025
CWH351047
CWB021217
CWB011257
CWT25078 (1/4”)
CWT25005 (3/8”)
CWA121050
CWH7041200
CWH171011
CWH7080300
CWH151074
CWA28K1064
DS371206CPNA
(20µF, 370VAC)
CWH301038
DS441205NPQA
(2.0µF, 440VAC)
CWE041110A
CWE04C1042
CWE06K1048
CWD041057A
CWE031041A
CWH131193
CWF564402
CWF612620CWF612681
CWF612738
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).
• “O” marked parts are recommended to be kept in stock.
75
CU-C9DKD
CU-C12DKD
←
←
←
←
←
←
←
←
2PS156D3BB02
←
←
CWB32C1626
CWB15K1148
←
←
←
←
←
←
CWA121091
←
←
←
←
←
DS371306CPND
(30µF, 400VAC)
CWH301035
←
CWD50K2088
CWG302249
CWD541030
CWH551059
CWA951263
←
CWH03K1006
←
2KS206D5AF04
CWH50055
CWH4582065
CWB32C1218
CWB15K1090
←
CWH351023
CWB021116
CWB011148
CWH171012
←
CWH151023
CWH102202
←
DS371356CPNA
←
←
←
←
←
←
←
←
←
←
CWE041031A
CWE041037A
CWE06K1034
CWD04C1011
CWE031014A
CWH131088
CWH13C1065
CWE161010
←
←
←
←
CWH30057
DS441205NPQA
REMARK
S
0
0
0
0
0
0
0
0
0
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
19 Electronic Circuit Diagram
19.1. Indoor Unit
SCHEMATIC DIAGRAM 1/4
ELECTRONIC CONTROL UNIT
c
b
R55
1k
Auto
SW
BZ
2
R11
1k
SUPERSONIC COMPLETE
C601
0.1
R603
1M
IC601
1
2
3
R88
5.1k
C02
0.01
R78
10k
CN-SONIC
CN-SONIC
R601
1k
X601
R07
10k
C01
0.01
R12
1k
R602
5.1k
e
BZ01
1
SW01
Q01
C143XKTX
1
2
3
R68
100
DISPLAY COMPLETE
IC401
C24
1
R401
47
0.01
C25
2
0.01
C26
3
D402
D401
POWERFUL(ORG)
QUIET(ORG)
ION(GRN)
D403
D404
D405
D406
SUPERSONIC(BLU)
R15
220
CN-DISP
TIMER/AIR SW(ORG)
POWER(GRN)
10
9
8
7
6
5
4
3
2
1
220
220
0.01
+ C401
47
6.3V
R13
R14
1
2
3
4
5
6
7
8
9
10
CN-DISP
C29
0.1
R17
220
R27 220
C28
0.01
C27
0.01
c
R73
3.3k
C35
0.01
b
Q09
e
R31
1k
R56
1k
C22
0.01
CN-HA
4
3
2
1
76
R58
10k
R59 1k
JP5
C23
0.01
R60
10k
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
SCHEMATIC DIAGRAM 2/4
3XKTX
C38
1000p
R10
10k
58
57
56
55
54
53
52
51
50
49
P72
59
P73
60
P74
61
P75
62
P64
63
P65
64
P66
D05
P67
D06
R25
P40
D07
R24
P41
D08
R23
P42
R22
P43
D09
P44
R21
P45
D11
D10
P47
D12
R19
P46
R18
R20
P71
1
48
P50
2
3
4
5
6
7
STEPPING
MOTOR
DRIVE
SIGNAL
RY-PWR DRIVE SIGNAL
P51
TOD 47
P52
AUTO OPERATION
TEST RUN
REMOTE CONTROL
SOUND
P03 46
INTP2
BUZZER
P53
POWER CLOCK INPUT
INTP1
DISPLAY
P54
REMOTE-CONTROL
COMMAND INPUT
45
44
INTP0 43
P55
Vss1 42
P56
IC01
8 P57
X1 41
R06 24k
OSC
9 Vss0
X2 40
JP2
IC(VPP) 39
10 VDD0
INTAKE AIR TEMP
P34
1
1
8 16
2
15
3
14
R05
43
1/2W
4
13
5
12
6
11
R04
43
1/2W
7
RY-PWR
16
2
15
3
14
4
13
5
12
6
11
7
10
R09
10k
23
24
25
26
27
28
29
30
5 DI
SK 4
6 DO
CS 3
10
32
JX2
8 RS
9
R/B 1
C05
0.1
16V
IC02
C3EBDG000021
IC06
B1HBGGF00013
C04
0.1
16V
R33
15k
R30
20k
C08
0.1
16V
4 3 2 1
5 4 3 2 1
(PH)
CN-STM1
5 4 3 2 1
31
AN11
22
AN12
21
AN13
20
AN14
19
33
7 GND Vcc 2
9
IC05
B1HBGGF00013
18
AN15
17
8
GROU ND
35
AVref 34
TIMER SHORTEN
AN10
P35
P36
16
AUTO RESTART
AVDD
POWER
PIPE TEMP
AN16
15
P33
AN17
14
AV55
1k
RESET 36
RESET
VDD1
R77
XT2 37
13 P32
P25
1k
XT1 38
12 P31
P24
R74
11 P30
P23
1k
SCK30
R76
S030
1k
S130
C39
R75
(ZH5)
CN-TH
PIPE TEMP. SENSOR
(20k 3950)
VERTICAL
77
(RED)
AIR TEMP. SENSOR
(15k 3950)
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
SCHEMATIC DIAGRAM 3/4
R66
R48
T01
DB01
~
+
5
8
2
13
IC04
IC03
REGULATOR
REGULATOR
I
C17
3300
35V
~
12V
O
C14
470
25V
G
5V O
I
C11
100
16V
G
c
b
Q02
C143XKTX
b
c
R03
D16
1.3k
C07
0.1
16V
R29
1.6k
e
4.7k
R57
12k
R47
12k
RY-PWR
D15
L
FUSE
POWER SUPPLY
AC220~240V
50Hz
P
T 2A L 250V
10k
C03
0.047
ZNR01
e
TEMPERATURE
FUSE
AC-WHT
SSR01
Q03
C143XKTX
4.7k
L01
125 H
1
2
10k
e
C16 R44
0.01 1k
R32
150k
TO OUTDOOR
SSR0
1
R41
1k
CR03
X01
C19
0.047
4.096 MHz
(47pF X 2)
CN-FM
C-FM
JP3
R49
1.5
R50
100k
1k
C36
R51
10k
c
JP4
C10
0.1
16V
b
C37
0.01
R79
10k
e
Q05
C2412KTX
C15
0.01
C21
10
50V
R52
6.2k
R54
6.2k
e
R38
R53
10k
b
1
2
3
C12
0.1
16V
Z01
7.5V
Q06
c C2412KTX
R43
CN-ION
4
3
2
1
JX1
R37
10k
R62
1
1k
R01
10k
R61
10k
c
TEST
R02
FAN MOTOR
CN-FB
R36
1k
C18
0.1
16V
1
2
3
4
5
+
b
c
2
C31
0.01
Q08
D01
b
R67
Q07
e
R64
6.2k
c
b
R63
6.2k
78
e
C32
0.01
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
SCHEMATIC DIAGRAM 4/4
C7DK/C9DK
B
B
CAPACITOR
FAN
MOTOR
Y
1
2
R
B
TO INDOOR
4
GR
B
CAPACITOR
Y
OVER LOAD
PROTECTOR
R
1
COMPRESSOR
B
C12DK
B
B
CAPACITOR
FAN
MOTOR
Y
1
2
R
B
TO INDOOR
B
GR
CAPACITOR
R
COMPRESSOR
B
HIGH VOLTAGE IONIZER
T1 D101
F1
4
3
2
1
R101
R102
CN2
HV
CH1
R3
R2
VIN
GND
ERR
Q1
EH-4P
R6
c
D102
Q4
b
c
b
R13
R9
C5
Q2
e
c
C8
b
C2
C1
e
D1 e
D3
Q5
C3
R4
R15
D2
Z02
4.7k
Z01
-4.2kV
c
b
R5
C101
D5
10k
e
D4
R14
R10
C6
R12
C7
CN3
GND
79
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
80
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
How to use electronic circuit diagram
TIMER TABLE
Name
Test Mode
(When test point
Short-circuited)
1 min.
10 sec.
1 sec.
0 sec.
0 sec.
4.2 sec.
0 sec.
0 sec.
36 sec.
60 sec.
4 sec.
7 sec.
2 sec.
18 sec.
4 sec.
36 sec.
30 sec.
0 sec.
0 sec.
15 sec.
0 ~ 6.2 sec.
10 sec.
Time
Real Timer
Time Delay Safety Control
Forced Operation
Time Save Control
Anti-Freezing
Auto Mode Judgement
Soft Dry
OFF
ON
Cooling
Deodorizing Control
Soft Dry
Comp. Reverse Rotation Detection
Comp./ Fan Motor Delay Timer
Powerful Mode Operation
Random Auto Restart Control
Ion OFF Timer
1 hr.
10 min.
1 min.
2 min. 58 sec.
60 sec.
7 min.
4 min.
20 sec.
6 min.
10 min.
40 sec.
70 sec.
20 sec.
180 sec.
40 sec.
360 sec.
5 min.
2 min.
1.6 sec.
15 min.
0 ~ 62 sec.
10 min.
81
Remarks
Soft Dry: 10 min. operation
Comp. ON 5 min. and above
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
19.2. Remote Control
82
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
19.3. Print Pattern
Indoor Unit Printed Circuit Board
83
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
84
CS-C7DKD CU-C7DKD / CS-C9DKD CU-C9DKD / CS-C12DKD CU-C12DKD
Indicator Printed Circuit Board
85
[PHAAM] Printed in Malaysia
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