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Order No. MAC0502033C1
Air Conditioner
CS-C9DKU CU-C9DKU
CS-C12DKU CU-C12DKU
CONTENTS
Page Page
1 Features 2 8.5. IndoorFanSpeedControl 21
2 Functions 3 8.6. OutdoorFanSpeedControl 23
3 ProductSpecifications 6 8.7. VerticalAirflowDirectionControl 23
3.1. CS-C9DKU CU-C9DKU 6 8.8. HorizontalAirflowDirectionControl 24
3.2. CS-C12DKU CU-C12DKU 8 8.9. PowerfulOperation 24
4 Dimensions 10 8.10. Quiet Operation 25
4.1. IndoorUnit&RemoteControl 10 8.11. Timer Control 26
4.2. OutdoorUnit 11 8.12
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 10.5. Indoor unit 37 13 Troubleshooting Guide 57 10.6. Outdoor unit 40 13.1. Refrigeration cycle system 57 11 2-way, 3-way Valve 45 13.2. Relationship between the condition of the air conditioner 11.1. Evacuation of Installation 46 and pressure and electric current 58 11.2. Pumping down 47 13.3. Diagnosis methods of a malfunction of a compressor 58 11.3. Evacuation of Re-installation 48 14 Technical Data 59 11.4. Balance refrigerant of the 2-way, 3-
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 2 Functions ı 3
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 4
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 5
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 3 ProductSpecifications 3.1. CS-C9DKUCU-C9DKU Unit Indoor unit Outdoor unit Power Source (Phase, Voltage, Cycle) ø, V, Hz Single, 115, 60 Cooling Capacity kW (BTU/h) 2.58 (8,800) Moisture Removal l/h (Pint/h) 1.0 (2.1) Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE 3 Air Volume Lo m /min (cfm) 4.7 (164) - 4.7 (164) — 3 Me m /min (cfm) 5.7 (202) - 5.7 (202) — 3 Hi m /min (cfm) 7.2 (250) - 7.2 (250) 33.8 (1,190) 3 SHi m /min (cfm) 7.8 (274) - 7.8 (274) — No
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU Unit Indoor unit Outdoor unit Thermostat Electrical — Protection Device — 2 Stage Overload Protector Capillary Tube Length inch (mm) — 26-18/32 (675) Flow Rate l/min — 13.0 Inner Diameter inch (mm) — 20/32 (1.6) Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 35 µF, 370VAC Fan Motor Capacitor µF, VAC 5.0 µF, 230VAC 8.0 µF, 230VAC Note: • Specifications are subjected to change without prior notice f
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 3.2. CS-C12DKUCU-C12DKU Unit Indoor unit Outdoor unit Power Source (Phase, Voltage, Cycle) ø, V, Hz Single, 115, 60 Cooling Capacity kW (BTU/h) 3.60 (12,300) Moisture Removal l/h (Pint/h) 1.6 (3.4) Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE 3 Air Volume Lo m /min (cfm) 5.6 (199) - 5.6 (199) — 3 Me m /min (cfm) 6.8 (238) - 6.8 (238) — 3 Hi m /min (cfm) 8.0 (280) - 8.0 (280) 31.1(1,100) 3 SHi m /min (cfm) 8.2 (289) - 8.2 (289) — Noise Level dB (A) High
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU Unit Indoor unit Outdoor unit Capillary Tube Length inch (mm) — 16-23/32 (425) Flow Rate l/min — 18.0 Inner Diameter inch (mm) — 2/32 (1.7) Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 50 µF, 370VAC Fan Motor Capacitor µF, VAC 5.0 µF, 230VAC 8.0 µF, 230VAC Note: • Specifications are subjected to change without prior notice for further improvement. 9
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 4 Dimensions 4.1. IndoorUnit&RemoteControl 10
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 4.2. OutdoorUnit CU-C9DKU CU-C12DKU 11
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 5 RefrigerationCycleDiagram CS-C9DKU CU-C9DKU CS-C12DKU CU-C12DKU 12
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 6 BlockDiagram CS-C9DKU CU-C9DKU CS-C12DKU CU-C12DKU 13
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 7 WiringDiagram CS-C9DKU CU-C9DKU REMARKS CS-C12DKU CU-C12DKU 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 MODEL CS-C9DKU CS-C12DKU CONNECTION CWA921143 BLUE-YELLOW 82.4 Ω YELLOW-RED 103.4 Ω Note: Resistance at 68°F of ambient temperature. Resistance of Outdoor Fan Motor Windings MODEL CU-C9DKU CU-C12DKU CONNECTION CWA951244 BLUE-YELLOW 61.2 Ω YE
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 8 OperationDetails 8.1. CoolingOperation • 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
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 8.2. SoftDryOperation • 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 Sof
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 8.3. AutomaticOperation • 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 ta
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 8.4. OperationControl 8.4.1. RestartControl(TimeDelaySafetyControl) • 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
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU 8.4.5. Anti-FreezingControl • 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
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CS-C9DKU CU-C9DKU / 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 Dir
