Order No: PHAAM1006051C3 Indoor Unit CS-C18KKS CS-C24KKS Outdoor Unit CU-C18KKS CU-C24KKS WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
13. Protection Control............................................49 13.1 13.2 13.3 13.4 13.5 13.6 13.7 Restart Control (Time Delay Safety Control).. ....................................................................49 7 Minutes Time Save Control .....................49 60 Seconds Forced Operation ...................49 Starting Current Control .............................49 Freeze Prevention Control .........................50 Compressor Reverse Rotation Protection Control ..............................
1. Safety Precautions • • • • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.
WARNING 20. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire. 21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire. 22. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury. 23. Must not use other parts except original parts described in catalog and manual. CAUTION 1.
2. Specification Model Indoor CS-C18KKS CS-C24KKS Outdoor CU-C18KKS CU-C24KKS Performance Test Condition Power Supply Capacity SASO (T3) SASO (T1) Phase, Hz Single, 60 Single, 60 V 220 220 kW 4.40 5.10 5.60 6.50 BTU/h 15000 17400 19100 22200 3780 4390 4820 5590 A 9.1 7.8 13.9 11.9 Input Power W 1.96k 1.69k 3.00k 2.56k W/W 2.24 3.02 1.87 2.54 BTU/hW 7.65 10.30 6.35 8.
Control Device Refrigeration Cycle Dimension Piping Weight Capillary tube Capillary tube Refrigerant Oil cm ATMOS NM56M or SUNISO 4GDID (650) ATMOS M60 or SUNISO 4GDID (1130) Refrigerant Type g (oz) R22, 1.27k (44.8) R22, 1.61k (56.
3. Features • E-ion Air Purifying System with Patrol Sensor o Active e-ions are released to catch dust particles and bring them back the large positively charged filter. o Patrol Sensor color changes to indicate the dirt level in the air • Long Installation Piping o CS/CU-C18KK, CS/CU-C24KK, long piping up to 25 meters.
4. Location of Controls and Components 4.1 Indoor Unit 4.2 Outdoor Unit 4.
5. Dimensions 5.
5.
6. Refrigeration Cycle Diagram INDOOR OUTDOOR LIQUID SIDE CAPILLARY TUBE STRAINER THERMOSTAT (C24KK only) 2-WAY VALVE INTAKE AIR TEMP. SENSOR PIPE TEMP.
7.
8. Wiring Connection Diagram 8.1 CS-C18KKS CU-C18KKS Resistance of Outdoor Fan Motor Windings MODEL CU-C18KKS CONNECTION CWA951401J BLUE-YELLOW 59.47Ω YELLOW-RED 60.95Ω Note: Resistance at 20°C of ambient temperature. Resistance of Compressor Windings MODEL CU-C18KKS CONNECTION 2KS252F5AA04 C-R 1.959Ω C-S 3.083Ω Note: Resistance at 20°C of ambient temperature.
8.2 CS-C24KKS CU-C24KKS Resistance of Outdoor Fan Motor Windings MODEL CU-C24KKS CONNECTION CWA951399J YELLOW-BLUE 59.47Ω YELLOW-ORANGE 80.58Ω YELLOW-RED 60.95Ω Note: Resistance at 20°C of ambient temperature. Resistance of Compressor Windings MODEL CU-C24KKS CONNECTION 2J39S236A1A C-R 0.933Ω C-S 1.584Ω Note: Resistance at 20°C of ambient temperature.
9. Electronic Circuit Diagram 9.
9.
10. Printed Circuit Board 10.1 Indoor Unit 10.1.
10.1.
10.1.3 Indicator Printed Circuit Board 10.1.4 Receiver Printed Circuit Board 10.1.
11.1.3 11. Installation Instruction 11.1 Select the Best Location 11.1.1 • • • • • • • • • Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into consideration. Do not install the unit near the door way.
11.2 Indoor Unit 11.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. The centre of installation plate should be at more than c at right and left of the wall. The distance from installation plate edge to ceiling should more than d. From installation plate left edge to unit’s left side is e. From installation plate right edge to unit’s right side is f.
11.2.3 Indoor Unit Installation ! Caution Use shock absorber during pull out the piping to protect the intake grille from damage. ! Do not turn over the unit without it ’s shock absorber during pull out the piping. It may cause intake grille damage Piping Piping Shock absorber Intake grille 11.2.3.1 For the right rear piping 11.2.3.2 For the right and right bottom piping 11.2.3.3 For the embedded piping (This can be used for left rear piping and bottom piping also.
11.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 x 2.5mm2 (2.0 ~ 2.5HP) flexible cord, type designation 245 IEC 57 or heavier cord. Do not use joint connection cable. Replace the wire if the existing wire (from concealed wiring, or otherwise) is too short.
11.2.5 Wire Stripping And Connecting Requirement 11.2.5.1 1 2 3 Cutting and flaring the piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. Please make flare after inserting the flare nut onto the copper pipes.
11.3 Outdoor Unit 11.3.1 • Install the Outdoor Unit After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10mm). 2 When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. B Model C18***, C24*** A 612.5 mm B 131 mm C 19 mm D 383 mm D C A 11.3.2 Connecting the Piping 11.3.2.
11.3.3 Evacuation of the Equipment FOR ENVIRONMENTAL PROTECTION, MANUFACTURER STRONGLY RECOMMENDS TO USE EVACUATION METHOD. 1 2 3 4 5 6 7 8 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. o Be sure to connect the end of the charging hose with the push pin to the service port. Connect the center hose of the charging set to a vacuum pump.
11.3.4 Air Purging of the Piping and Indoor The remaining air in the Refrigerant cycle which contains moisture may cause malfunction on the compressor. 1 Remove the caps from the 2-way and 3-way valves. 2 Remove the service-port cap from the 3-way valves. 3 To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten seconds, then close it. 4 Check gas-leakage of the connecting portion of the pipings. o For the left piping, refer to 4 (A). 11.3.
11.3.6 1 2 Pipe Insulation 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. 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 6mm or above.
12. Operation Control 12.1 Cooling Operation • • • • Cooling operation can be set using remote control. This operation is applied to cool down the room temperature to 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 and restart as shown in figure below: 12.1.
12.2 Soft Dry Operation • • • • • Soft Dry operation can be set using remote control. Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room. This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control. When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turn “OFF” for a minimum 6 minutes.
12.3 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.
12.4 Indoor Fan Speed Control • Indoor fan speed can be set using remote control. 12.4.1 Fan Speed Rotation Chart Fan Speed (rpm) Speed CS-C18KKS 1370 1200 1110 1080 1020 850 670 1110 1020 930 Shi Hi Me HLo CLo LoSLo Qhi QMe QLo 12.4.2 • CS-C24KKS 1500 1350 1230 1190 1110 970 750 1150 1050 960 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. o Fan speed rotates in the range of Hi, Me and Lo-.
• 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 starts operation, indoor fan speed increases gradually for deodorizing purpose. 3 For the first time the compressor operates, 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.
12.5 Outdoor Fan Speed Control • • • • • There is only one speed for outdoor fan motor. (Applicable for CU-C18KK) There is 2 speeds for outdoor fan motor. Outdoor fan speed can be changed to Hi or Lo according to outdoor temperature. (Applicable for CU-C24KK). For Cooling and Soft Dry operation, when outdoor temperature reaches to 31°C (Hi-speed), 29°C (Lo-speed). (Applicable for CU-C24KK). When air conditioner is turned on, the compressor and the outdoor fan will operate simultaneously.
12.7 Horizontal Airflow Direction Control 12.7.1 • • • When the horizontal airflow is set to Auto using the remote control, the vanes swings left and right as shown in the diagram. When stopped with remote control, the discharge vanes are reset and stop at the reset position. During Cooling operation or Soft Dry operation, indoor fan motor may stop to rotate at certain periods. At that condition, the vane will stop swinging and rest at 22° angle. 12.7.
12.9 Quiet Operation (For Cooling Operation or cooling region of Soft Dry Operation) • To provide quiet cooling operation condition. • Once the Quiet Operation is set at the remote control, the Quiet LED illuminated. The sound level will reduce around 2dB(A) for Lo fan speed or 3dB(A) for Hi/Me fan speed against the present operation sound level. • Dew formation become severe at Quite Lo Cool, therefore Quiet Lo cool operated only 1 hour 30 minutes (1 hour QLo, 30 minutes QLo + 50 rpm).
12.10 Timer Control 12.10.1 ON Timer • • • When the ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so that the room will reach nearly to the set temperature by the set time. For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time. For Automatic operation, the indoor fan will operate at SLo speed for 20 seconds, 15 minutes before the set time to detect the intake air temperature to determine the operation mode.
12.13 Patrol Operation • To monitor air dirtiness level by using Patrol sensor and to maintain air freshness by activates e-ion operation • Patrol operation starts condition o When the unit operation is started with “OFF/ON” button o When the unit stops, “Patrol” operation is selected, Patrol individual operation will start. o During cooling only operation, “Patrol” operation is selected.
Patrol Sensor Control o First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to Clean, Patrol LED turns blue color. o After that, Patrol sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air.
• Airflow direction (Horizontal, Vertical) Control o During any operation mode combines with Patrol operation, airflow direction follows respective operation mode. o During Patrol individual operation if e-ion starts, only Auto Air Swing is allowed. Even if “Air Swing” button is pressed, no signal is sent to air conditioner, and no change on LCD display. o During Patrol individual operation if e-ion stops, Airflow direction louver closed.
• Patrol Operation Demo Mode o Patrol Operation Demo Mode start condition Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition to enter internal setting mode. Press “Timer Decrement" button to select “Pt demo”. Press “Timer Set” button to toggle Patrol operation demo mode. • Long "beep": Turn OFF Patrol operation demo mode. • Short "beep": Turn ON Patrol operation demo mode.
12.14 E-ion operation • This operation provides clean air by producing negative ions to attract dust captured at the positively charged active e-ion filters. • e-ion operation start condition o During unit running at any operation mode, if “e-ion” operation is selected, combination operation (operation mode + e-ion operation) starts. o During unit is OFF, if “e-ion” operation is selected, e-ion individual operation starts.
• e-ion Check Mode o e-ion abnormality check mode o Purpose is to improve sensor serviceability when sensor is malfunction. (1) Control starting condition When all of the conditions are formed Not in Patrol Demo mode. e-ion operation ON. When e-ion check mode signal is received; the procedure of selection is as shown: • Press “Set” button continuously for 15 seconds by using pointer to enter internal setting mode. • Press “Timer Decrement" button to select “CHC”.
• Error Detection Control When e-ion indicator blink, it indicates error listed below: o Active e-ion Air Purifying system PCB main connector open: Judgment Method • During e-ion operation (include during Patrol operation), Active e-ion Air Purifying system main connector to PCB is opened. o o Troubleshooting Methods • Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.
12.15 ECO Patrol Operation • A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: • ECO Patrol operation – Human presence/absence detection outlined flow Process infrared sensor output signal Human detection (movement) every 3 seconds.
• ECO Patrol Demo Mode Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition to enter internal setting mode. Press “Timer Decrement" button to select “EC demo”. Press “Timer Set” button to toggle ECO Patrol Demo mode. • Short "beep": Turn ON ECO Patrol Demo mode. • Long "beep": Turn OFF ECO Patrol Demo mode.
• During ECO Patrol operation, the internal setting temperature and fan speed are adjusted in order to provide comfort and energy saving. • ECO Patrol Start condition. Press ECO Patrol button to select ECO1 and ECO2. • ECO Patrol Stop condition. Press ECO Patrol button again. OFF Timer activates. Press OFF/ON button to turn off the air conditioner. Press AUTO OFF/ON button to turn off the air conditioner. Press POWERFUL/QUIET button.
• • ECO Patrol Sensor abnormality check mode Purpose is to improve sensor serviceability when sensor is malfunction. (1) Control starting condition When all of the conditions are formed Not in ECO Patrol Demo mode. ECO Patrol mode ON. When ECO Patrol sensor check mode signal is received; the procedure of selection is as shown: • Press “Set” button continuously for 15 seconds by using pointer to enter internal setting mode. • Press “Timer Decrement" button to select “CHC”.
13. Protection Control 13.1 Restart Control (Time Delay Safety Control) • • • When the thermo-off temperature (temperature which compressor stops to operate) is reach during:o Cooling operation – the compressor stops for 3 minutes (minimum) before resume operation. o Soft Dry operation – the compressor stops for 6 minutes (minimum) before resume operation.
13.5 Freeze Prevention Control • • To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to compressor. This control will activate when temperature of indoor heat exchanger falls below 2°C continuously for more than 4 minutes and compressor turn off. Indoor Heat Exchanger Temperature (°C) 10 Recovery 4 min 2 Compressor OFF • • Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery).
14. Servicing Mode 14.1 Auto OFF/ON Button Auto OFF/ON Button Pressed Auto OFF/ON Button Pressed 5 sec Auto Operation Auto OFF/ON Button Pressed 5 sec Test Run Operation (Forced Cooling Operation) Stop Various Setting Mode Stop 1 AUTO OPERATION MODE The Auto Operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction.
14.2 Remote Control Button 14.2.1 • • To check current remote control transmission code and store the transmission code to EEPROM: o Press “Set” button for more than 10 seconds o Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code change. To change the air quality sensor: o Press and release by using pointer o Press the Timer Decrement button to select sensitivity: 1. Low sensitivity 2. Standard (Default) 3.
15. Troubleshooting Guide 15.1 Refrigeration cycle system In order to diagnose malfunctions, ensure the air conditioner is free from electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right.
15.1.
16. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 16.1.1 To remove front grille Figure 1 16.1.
16.1.
16.1.4 To remove discharge grille Figure 7 16.1.5 To remove control board Figure 8 16.1.
Figure 10 Figure 11 Figure 12 58
17. Technical Data 17.1 Operation Characteristics 17.1.1 Cooling Characteristic o Room temperature: o Operation condition: o Piping length: 27°C (DBT), 19°C (WBT) High fan speed 5.0m Current (A) 220V 11.00 10.50 10.00 9.50 9.00 8.50 8.00 7.50 7.00 30 35 40 45 Outdoor Temperature (ºC) 50 55 Gas Side Piping Pressure (MPa) 220V 0.620 0.590 0.560 0.530 0.500 0.470 30 35 40 45 Outdoor Temperature (ºC) 50 55 220V Capacity (kW) 5.60 5.30 5.00 4.70 4.40 4.10 3.
Piping Length Characteristic o Outdoor temperature: 35°C (DBT), 24°C (WBT) o Operation condition: High fan speed o Piping length: 5.0m Current (A) 220V 7.90 7.80 7.70 7.60 7.50 7.40 7.30 7.20 3 5 7 9 11 13 15 17 Piping Length (m) 19 21 23 25 Gas Side Piping Pressure (MPa) 220V 0.500 0.490 0.480 0.470 0.460 0.450 0.440 0.430 3 5 7 9 11 13 15 17 Piping Length (m) 19 21 23 25 Capacity (kW) 220V 5.20 5.10 5.00 4.90 4.80 4.70 4.60 4.
17.1.2 Cooling Characteristic o Room temperature: o Operation condition: o Piping length: 27°C (DBT), 19°C (WBT) High fan speed 5.0m 220V Current (A) 17.00 16.00 15.00 14.00 13.00 12.00 11.00 30 35 40 45 Outdoor Temperature (ºC) 50 55 Gas Side Piping Pressure (MPa) 220V 0.550 0.520 0.490 0.460 0.430 0.400 30 35 40 45 Outdoor Temperature (ºC) 50 55 Capacity (kW) 220V 7.00 6.70 6.40 6.10 5.80 5.50 5.20 4.90 30 35 40 45 Outdoor Temperature (ºC) 50 55 220V 16.
Piping Length Characteristic o Outdoor temperature: 35°C (DBT), 24°C (WBT) o Operation condition: High fan speed o Piping length: 5.0m 220V 12.20 Current (A) 12.00 11.80 11.60 11.40 11.20 11.00 3 5 7 9 11 13 15 17 Piping Length (m) 19 21 23 25 Gas Side Piping Pressure (MPa) 220V 0.430 0.420 0.410 0.400 0.390 0.380 0.370 0.360 3 5 7 9 11 13 15 17 19 21 23 25 Piping Length (m) Capacity (kW) 220V 6.60 6.50 6.40 6.30 6.20 6.10 6.00 5.90 5.
18. Exploded View and Replacement Parts List 18.1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
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50 DRAIN HOSE 1 CWH851173 ← 51 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C1705 ← 52 INSTALLATION PLATE 1 CWH361098 ← 53 FULCRUM 2 CWH621103 ← 54 OPERATING INSTRUCTION 1 CWF567115 ← 55 INSTALLATION INSTRUCTION 1 CWF614219 ← 56 INSTALLATION INSTRUCTION 1 CWF614220 ← 57 POWER SUPPLY CORD 1 CWA20C2836 ← (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). • “O” marked parts are recommended to be kept in stock.
18.2 Outdoor 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.
REF. NO.