Table of Contents
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CONTENTS
CS-C18DKU CU-C18DKU
CS-C24DKU CU-C24DKU
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© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0502036C1
Air Conditioner
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Table of Contents
Related Manuals for Panasonic CS-C18DKU
Summary of Contents for Panasonic CS-C18DKU
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Page 1: Table Of Contents
8.2. Soft Dry Operation 4.1. Indoor Unit & Remote Control 8.3. Automatic Operation 4.2. Outdoor Unit 8.4. Operation Control © 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. -
Page 2: Features
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 8.5. Indoor Fan Speed Control 12.1. Indoor Electronic Controllers Removal Procedures 8.6. Outdoor Fan Speed Control 12.2. Cross Flow Fan and Indoor Fan Motor Removal 8.7. Vertical Airflow Direction Control Procedures 8.8. Horizontal Airflow Direction Control 12.3. -
Page 3: Functions
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 2 Functions... - Page 4 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
- Page 5 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
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Page 6: Product Specifications
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 3 Product Specifications 3.1. CS-C18DKU CU-C18DKU Unit CS-C18DKU CU-C18DKU Power Source (Phase, Voltage, Cycle) , V, Hz Single, 208 - 230, 60 Cooling Capacity kW (BTU/h) 5.20 (17,700) - 5.20 (17,700) Moisture Removal l/h (Pint/h) 2.1 (4.4) - Page 7 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU Unit CS-C18DKU CU-C18DKU Refrigerant Control Device — Capillary Tube Refrigeration Oil — SUNISO 4GDID or ATMOS M60 or ATMOS 56m Refrigerant (R-22) g (oz) — 1,240 (43.8) Thermostat — Mechanical Control Protection Device — Overload Protector...
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Page 8: Cs-C24Dku Cu-C24Dku
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 3.2. CS-C24DKU CU-C24DKU Unit CS-C24DKU CU-C24DKU Power Source (Phase, Voltage, Cycle) , V, Hz Single, 208 - 230, 60 Cooling Capacity kW (BTU/h) 6.82 (23,200) - 6.82 (23,200) Moisture Removal l/h (Pint/h) 3.5 (7.4) Airflow Method... - Page 9 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU Unit CS-C24DKU CU-C24DKU Refrigerant (R-22) g (oz) — 1,480 (52.2) Thermostat — — Protection Device — Inner Protector Capillary Tube Length inch (mm) — 13-12/32 (340.0) Flow Rate l/min — 21.0 Inner Diameter inch (mm) —...
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Page 10: Dimensions
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 4 Dimensions 4.1. Indoor Unit & Remote Control 4.1.1. CS-C18DKU CS-C24DKU... -
Page 11: Outdoor Unit
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 4.2. Outdoor Unit 4.2.1. CU-C18DKU... - Page 12 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 4.2.2. CU-C24DKU...
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Page 13: Refrigeration Cycle Diagram
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 5 Refrigeration Cycle Diagram... -
Page 14: Block Diagram
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 6 Block Diagram... -
Page 15: Wiring Diagram
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 7 Wiring Diagram... - Page 16 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
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Page 17: Operation Details
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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. -
Page 18: Soft Dry Operation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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. -
Page 19: Automatic Operation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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 refering to the below standard. -
Page 20: Operation Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 8.4. Operation Control (For 8.4.1. to 8.4.6. information applies only to Cooling and Soft Dry Operation) 8.4.1. Restart Control (Time Delay Safety Control) • When the thermo-off temperature (temperature which compressor stops to operate) is reached during:- −... -
Page 21: Compressor Reverse Rotation Protection Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 8.4.5. 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. - Page 22 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 2. Norrowing Vertical Airflow Direction − During Anti-dew condensation prevention, Airflow Direction Auto-control angle change from 10° - 38° to 10° - 27° under Cooling and Soft Dry operation mode. − During Anti-dew condensation prevention, Airflow Direction Manual control angle change from 10°, 14°, 18°, 22°, 27° to 10°, 13°, 16°, 19°, 22°...
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Page 23: Indoor Fan Speed Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 8.5. Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 8.5.1. Fan Speed Rotation Chart COOL/ DRY CS-C24DKU CS-C18DKU S Hi 1620 1420 1570 1360 1450 1250 1360 1220 1260... -
Page 24: Outdoor Fan Speed Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU • 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. -
Page 25: Horizontal Airflow Direction Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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. -
Page 26: Quiet Operation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU - Stopped by OFF/ON operation button. - Timer OFF activates. - Quiet mode button is pressed. - Operation mode is changed. 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. -
Page 27: Economy Mode Operation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 8.11. Economy Mode Operation Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner. However consumer is advised to use Economy Mode operation after the room temperature reaches the desired temperature. -
Page 28: Remote Control Signal Receiving Sound
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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. • Short beep sound will be heard for others setting. -
Page 29: Operating Instructions
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 9 Operating Instructions... - Page 30 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
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Page 35: Installation Instructions
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10 Installation Instructions Required tools for Installation Works 1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 13.3 lbf. ft 40.6 lbf. - Page 36 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 1. This equipment must be earthed and installed with earth leakage current breaker. 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. If gas leaks and accumulates at arround of the unit, it may cause fire.
- Page 37 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU Attached accessories Indoor/Outdoor Unit Installation Diagram Applicable piping kit CZ-4F5, 7AEN (CU-C18DK) CZ-52F5, 7, 10AN (CU-C24DK) SELECT THE BEST LOCATION INDOOR UNIT • There should not be any heat source or steam near the unit.
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Page 38: Indoor Unit
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10.2. Indoor Unit 10.2.1. SELECT THE BEST LOCATION 10.2.3. TO DRILL A HOLE IN THE WALL (Refer to “Select the best location” AND INSTALL A SLEEVE OF section) PIPING 1. Insert the piping sleeve to the hole. - Page 39 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
- Page 40 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10.2.5. INDOOR UNIT ELECTRICAL WIRING 1. Remove the control board metal cover. INSTALLATION OF AIR PURIFYING FILTER 1. Open the front panel. 2. Remove the air filters. 3. Put air purifying filter into place as shown in illustration at below.
- Page 41 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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...
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Page 42: Outdoor Unit
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10.3. Outdoor Unit 10.3.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section) 10.3.2. INSTALL THE OUTDOOR UNIT MODEL Piping size (Torque) Liquid • After selecting the best location, start installation according C18DK 1/2”... -
Page 43: Evacuation Of The Equipment
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10.3.4. 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 side of a charging set and the service port of the 3-way valve. -
Page 44: Pipe Insulation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 10.3.5. OUTDOOR UNIT ELECTRICAL WIRING 6. Secure the wire onto the control board with the holder (clamper). 7. Wire connection to the power supply (208/230V 60 Hz) through circuit breaker. • Connect the UL listed or CSA approved wires (AWG12) to the terminal board, and connect the other end of the wires to circuit breaker. -
Page 45: 11 3-Way Valve
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11 3-way Valve 3-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Service Port Shaft Position Service Port Shipping Closed Closed Closed Close (With valve cap) (With cap) (With valve cap) (With cap) -
Page 46: Evacuation Of Installation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.1. Evacuation of Installation When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. Required tools : hexagonal wrench, adjustable wrench, torque If air remain in the indoor unit and refrigeration pipes, it will... -
Page 47: Pumping Down
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.2. Pumping down Procedure: 1. Confirm that both the 3-way valves are set to the open 6. Operate the air conditioner at the cooling cycle and position. stop it when the gauge indicates 0 kg/cm G (0 PSI). -
Page 48: Evacuation Of Re-Installation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.3. Evacuation of Re-installation WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TO If air remain in the indoor unit and refrigeration pipes, it will EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES affect the compressor, reduce to cooling capacity, and could in the following procedure. -
Page 49: Balance Refrigerant Of The 3-Way Valves
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.4. Balance refrigerant of the 3-way valves (Lack of refrigerant in the refrigeration cycle) Procedure: 1. Confirm that both the 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. -
Page 50: Evacuation
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.5. Evacuation (No refrigerant in the refrigeration cycle) Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Turn on the vacuum pump to evacuate the unit. • Confirm that the gauge needle has moved toward -76 cmHg (14.5 PSI) -
Page 51: Gas Charging
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 11.6. Gas charging (After Evacuation) Procedure: 1. Connect the charge hose to the charging cylinder. 4. Immediately disconnect the charge hose from both the 3-way valve service ports. • Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the 5. -
Page 52: Servicing Information
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 12 Servicing Information 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 soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C). -
Page 53: Cross Flow Fan And Indoor Fan Motor Removal Procedures
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 12.2. Cross Flow Fan and Indoor Fan Motor Removal Procedures 1. In order to remove the Cross Flow Fan and Indoor Fan Motor, Control Board need to be taken out by releasing all the connectors as indicated below. -
Page 54: Remote Control Reset
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 7. Push up the Evaporator and pull out the Cross Flow Fan from shaft. By then, Fan Motor can be taken out. (Fig. 9) REMINDER - To reinstall the Fan Motor, put it back in place, adjust the position of the Fan Motor’s leadwire... -
Page 55: Select Remote Control Transmission Code
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 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 malfunctioning. • 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. -
Page 56: Troubleshooting Guide
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 13 Troubleshooting Guide 13.1. Refrigeration cycle system In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. -
Page 57: Diagnosis Methods Of A Malfunction Of A Compressor
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 13.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressure High Pressure Electric current during operation Insufficient refrigerant (gas leakage) Clogged capillary tube or... -
Page 58: Technical Data
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 14 Technical Data 14.1. Thermostat characteristics... -
Page 59: Operation Characteristics
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 14.2. Operation characteristics • CS-C18DKU / CU-C18DKU... - Page 60 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU...
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Page 63: Exploded View (Indoor Unit)
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 15 Exploded View (Indoor Unit) 15.1. CS-C18DKU CS-C24DKU 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. -
Page 64: Replacement Parts List (Indoor Unit)
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 16 Replacement Parts List (Indoor Unit) <Model: CS-C18DKU / CS-C24DKU > REF. NO. PART NAME & DESCRIPTION QTY. CS-C18DKU CS-C24DKU REMARKS ← CHASSY COMPLETE CWD50C1399 ← FAN MOTOR, DC30W 3PH CWA981172 ← CROSS FLOW FAN COMPLETE CWH02C1010 ←... -
Page 65: Exploded View (Outdoor Unit)
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 17 Exploded View (Outdoor Unit) 17.1. CU-C18DKU 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. -
Page 66: Cu-C24Dku
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 17.2. CU-C24DKU 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. -
Page 67: Replacement Parts List (Outdoor Unit)
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 18 Replacement Parts List (Outdoor Unit) <Model: CU-C18DKU> REF. NO. PART NAME & DESCRIPTION QTY. CU-C18DKU REMARKS BASE PAN ASSY CWD50K2056B SOUND PROOF BOARD CWH15223A FAN MOTOR BRACKET CWD54238 SCREW - FAN MOTOR BRACKET CWH55027... - Page 68 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU <Model: CU-C24DKU> REF. NO. PART NAME & DESCRIPTION QTY. CU-C24DKU REMARKS BASE PAN ASSY CWD50K2111A COMPRESSOR (60HZ, 208/230V) 2J39S236A1A ANTI - VIBRATION BUSHING CWH50055 NUT - COMPRESSOR MOUNT CWH4582065 PACKING CWB81043 CONDENSER CWB32C1577 SOUND PROOF BOARD...
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Page 69: Electronic Circuit Diagram
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 19 Electronic Circuit Diagram 19.1. Indoor Unit & Outdoor Unit CS-C18DK CU-C18DK CS-C24DK CU-C24DK SCHEMATIC DIAGRAM 1/4 ELECTRONIC CONTROL UNIT CN-SONIC BZ01 DISPLAY COMPLETE IC101 R101 C101 CN-DISP 6.3V CN-DISP D101 TIMER (ORG) POWER (GRN) - Page 70 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU SCHEMATIC DIAGRAM 2/4 0.01 5.1k 6.2k 6.2k P50/A8 RY-PWR DRIVE SIGNAL STEPPING TIMER SHORTEN P51/A9 MOTOR DRIVE P03/NTP3 AUTO OPERATION SIGNAL P52/A10 TEST RUN P02/NTP2 REMOTE CONTROL BUZZER SOUND P53/A11 P01/NTP1 DISPLAY P54/A12 POWER CLOCK INPUT...
- Page 71 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU SCHEMATIC DIAGRAM 3/4 IC08 IC09 REGULATOR REGULATOR DB02 3300 0.01 0.01 DB03 100k 0.22 0.22 100k 450V PC03 3.9k RY-PWR TH01 TH02 1/4W 1/4W 1/4W 1/4W FUSE 330k T 3.15A L 250V 330k AC01 DB01...
- Page 72 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU SCHEMATIC DIAGRAM 4/4 CAPACITOR BLUE C18DK BROWN OR YELLOW BLUE BROWN WHITE BLUE BLACK BLUE MAGNETIC RELAY YELLOW TEMPERATURE FUSE CAPACITOR BLUE C24DK THERMOSTAT BROWN OR YELLOW TO OUTDOOR ORANGE BLUE BROWN WHITE BLUE BLACK...
- Page 73 CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU How to use electronic circuit diagram TIMER TABLE Test Mode Name Time (When test point Remarks Short-circuited) Real Timer 1 hr. 1 min. 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Control 2 min.
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Page 74: Remote Control
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 19.2. Remote Control... -
Page 75: Print Pattern Indoor Unit Printed Circuit Board
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 19.3. Print Pattern Indoor Unit Printed Circuit Board TOP VIEW BOTTOM VIEW... -
Page 76: Print Pattern Indicator & Receiver Printed Circuit Board
CS-C18DKU CU-C18DKU / CS-C24DKU CU-C24DKU 19.4. Print Pattern Indicator & Receiver Printed Circuit Board TOP VIEW BOTTOM VIEW [PHAAM] Printed in Malaysia...