Tube materialCopperCopper
Fin materialAluminium (Pre Coat)Aluminium (Blue Coat)
Fin TypeSlit FinLouver Fin
Row / Stage(Plate fin configu ration, forced draft)
FPI2116
Size (W × H × L)inch (mm)24-1/32 ×12-13/32 × 1
InputW60.6166.0 - 75.0
RatedOutputW1531
Fan SpeedLowrpm900 - 900—
Mediumrpm1,080 - 1,080—
Highrpm1,280 - 1,280820 - 820
SuperHighrpm1,310 - 1,310—
Tube materialCopperCopper
Fin materialAluminium (Pre Coat)Aluminium (Blue Coat)
Fin TypeSlit FinLouver Fin
Row / Stage(Plate fin configuration, forced draft)
FPI2116
Size (W × H × L)inch (mm)24-1/32 × 12-13/ 32 × 1
Style
Capacity ControlCapillary Tube
Compressor CapacitorµF, VAC—50 µF, 370VAC
Fan Motor CapacitorµF, VAC5.0 µF, 230VAC8.0 µF, 230VAC
P.P.
Honeycomb
—
Note:
• Specifications are subjected to change without prior notice for further improvement.
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
4 Dimensions
4.1. Indoor Unit & Remote Control
10
4.2. Outdoor Unit
CU-C9DKU
CU-C12DKU
CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
5 Refrigeration Cycle Diagram
CS-C9DKU CU-C9DKU
CS-C12DKU CU-C12DKU
12
6 Block Diagram
CS-C9DKU CU-C9DKU
CS-C12DKU CU-C12DKU
CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
7 Wiring Diagram
CS-C9DKU CU-C9DKU
CS-C12DKU CU-C12DKU
REMARKS
B: BLUE
BR: BROWN
BL: BLACK
GRY: GRAY
O: ORANGE
P: PINK
R: RED
W: WHITE
Y/G: YELLOW/GREEN
Power Supply Cord
Resistance of Indoor Fan Motor Windings
MODELCS-C9DKU
CS-C12DKU
CONNECTIONCWA921143
BLUE-YELLOW82.4 Ω
YELLOW-RED103.4 Ω
Note: Resistance at 68°F of ambient temperature.
Resistance of Outdoor Fan Motor Windings
MODELCU-C9DKU
CONNECTIONCWA951244
BLUE-YELLOW61.2 Ω
YELLOW-RED53.4 Ω
Note: Resistance at 78.8°F of ambient temperature.
CU-C12DKU
Resistance of Compressor Windings
MODELCU-C9DKUCU-C12DKU
CONNECTION2R135126A2P19S126C-1A
C-R0.938 Ω0.613 Ω
C-S2.611 Ω2.106 Ω
Note: Resistance at 77°F/68°F of ambient temperature.
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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 60.8°F
to 86°F.
• During cooling operation, the compressor will stop running and restart as shown in below figure.
8.1.1. Cooling Operation Time Diagram
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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 3.6°F permanently, by open
the circuit of JX1 at indoor electronic controller.
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
8.4. Operation Control
8.4.1. 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.
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.
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
8.4.5. Anti-Freezing Control
• If the temperature of the indoor heat exchanger falls below 35.6°F 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 50°F (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 4.5°F 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 (±1.8°F) the following condition occur for 30 minutes continuously, anti-dew formation will
activate:
- Indoor intake temperature is more than 75.2°F and less than 86°F.
- Remote Control setting temperature is less than 77°F
- Compressor is on.
- Cooling Operation Mode.
- Indoor fan motor operate at Low fan speed or QLo.
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
• 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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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
During Anti-Dew condensation prevention, Airflow Direction Manual Control angle change from 10°, 15°, 20°, 26°, 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
SpeedFan Speed (rpm)
CS-C9DKUCS-C12DKU
SHi12501310
Hi11601280
Me9201080
HLo840960
CLo750900
Lo-750850
SLo710820
SS Lo-QSHi--
QHi10601180
QMe820980
QH Lo--
QLo650800
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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
• 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. Vertical Airflow Direction Control
8.7.1. 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 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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CS-C9DKU CU-C9D KU / CS-C12DKU CU-C12DKU
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 5.4°F internally against the present
setting temperature (Lower temperature limit: 60.8°F).
• 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.
- Economy mode button is pressed.
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