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Panasonic CS-A18DKD Service Manual Download Page 21

8.5.7. Anti-Dew Formation Control

 • 

Purpose is to prevent dew formation on indoor unit air discharge area.

 • 

When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will
activate:

 − 

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.

 • 

This control is cancelled immediately when above condition is changed.

 • 

Anti-Dew formation is control by:
 1. Increasing Air Flow Volume

 a. Lo fan speed

Lo fan speed is changed to Lo+ after 30 min to prevent dew formation.

 b. QLo fan speed

Dew formation may occurs at QLo cool, therefore QLo cool is operated only 1 hr 30 min (1 hr QLo, 30 min QLo +100
rpm). After that, it operates at QLo +180rpm (However Quiet LED remains on).

 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.

21

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

Summary of Contents for CS-A18DKD

Page 1: ...orized copying and distribution is a violation of law CS A18DKD CU A18DKD CS A24DKD CU A24DKD 8 1 Heating Operation 15 8 2 Cooling Operation 16 8 3 Soft Dry Operation 17 8 4 Automatic Operation 18 8 5 Operation Control 19 8 6 Indoor Fan Speed Control 26 8 7 Outdoor Fan Speed Control 28 8 8 Vertical Airflow Direction Control 28 8 9 Horizontal Airflow Direction Control 29 8 10 Powerful Operation 30 ...

Page 2: ...safety restart operation Gas leakage detection Prevent Compressor reverse cycle Inner protector to protect Compressor Noise prevention during soft dry operation Blue coated Condenser for high resistance to corrosion Anti dew formation control Cooling Soft Dry Overload Protection Control Heating Outdoor Fan Control Compressor High Pressure Control Operation Improvement Quiet mode to provide quiet o...

Page 3: ...g ON TIMER OFF TIMER Timer Operation Selection SET CANCEL Timer Operation Set Cancel ON Timer and OFF Timer setting and cancellation CLOCK AIR SWING Vertical Automatic Airflow Direction Control and Manual Airflow Direction Control 5 stages of adjustment Horizontal Automatic Airflow Direction Control and Manual Airflow Direction Control 5 stages of adjustment Powerful Operation Start Stop POWERFUL ...

Page 4: ...heard Used to toggle remote control signal receiving sound or select remote control transmission code AUTO OFF ON Operation Indication Lamps LED POWER Green Lights up in operation blinks in Automatic Operation judging QUIET Orange Lights up in Quiet Operation TIMER Orange Lights up in Timer Setting POWERFUL Orange Lights up in Powerful Operation ION Green Lights up in Ionizer Operation SUPER ALLER...

Page 5: ... Deice Control When the unit is switched to OFF during Heating Operation 4 way valve stays at Heating position for 5 minutes 4 Way Valve Control Outdoor Fan Operation Control 6 pole induction motor 2 speed For Cooling or Soft Dry operation Hi speed When outdoor temperature reaches to 31 C Lo speed When outdoor temperature reaches to 29 C For Heating operation Hi speed When outdoor temperature reac...

Page 6: ...42 Low 38 38 Heating High 54 55 Electrical Data Input Power kW Cooling 1 72 1 76 Heating 1 65 1 71 Running Current A Cooling 8 0 7 8 Heating 7 7 7 6 EER W W BTU hW Cooling 3 08 3 01 10 52 10 28 COP W W BTU hW Heating 3 42 3 33 11 70 11 35 Starting Current A 44 5 Piping Connection Port Flare piping inch inch G Half Union 1 2 L Half Union 1 4 G 3 way valve 1 2 L 3 way valve 1 4 Pipe Size Flare pipin...

Page 7: ...e Slit Fin Corrugated Fin Row Stage Plate fin configuration forced draft 2 15 2 28 FPI 21 16 Size W H L mm 810 315 25 4 827 7 862 2 711 2 44 Refrigerant Control Device Capillary Tube Refrigeration Oil cm3 SUNISO 4GDID or ATMOS M60 or ATMOS 56M Refrigerant R 22 g oz 1 710 60 4 Thermostat Protection Device Inner Protector Capillary Tube Length mm Cooling 970 Heating 820 Flow Rate l min Cooling 11 0 ...

Page 8: ... 30 COP W W BTU hW Heating 3 08 3 05 10 51 10 39 Starting Current A 65 0 Piping Connection Port Flare piping inch inch G Half Union 5 8 L Half Union 1 4 G 3 way valve 5 8 L 3 way valve 1 4 Pipe Size Flare piping inch inch G gas side 5 8 L liquid side 1 4 G gas side 5 8 L liquid side 1 4 Drain Hose Inner diameter mm 12 Length mm 650 Power Cord Length m 1 9 Number of core wire 3 2 5 mm2 Dimensions H...

Page 9: ...ation Oil cm3 SUNISO 4GDID or ATMOS M60 or ATMOS 56M Refrigerant R 22 g oz 2 050 72 4 Thermostat Protection Device Inner Protector Capillary Tube Length mm Cooling 730 Heating 340 Flow Rate l min Cooling 12 5 Heating 21 0 Inner Diameter mm Cooling 1 6 Heating 2 0 Air Filter Material Style P P Honeycomb Capacity Control Capillary Tube Compressor Capacitor µF VAC 45 µF 400 440VAC Fan Motor Capacitor...

Page 10: ...4 Dimensions 4 1 Indoor Unit Remote Control 4 1 1 CS A18DKD CS A24DKD 10 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 11: ...4 2 Outdoor Unit 4 2 1 CU A18DKD CU A24DKD 11 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 12: ...5 Refrigeration Cycle Diagram 12 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 13: ...6 Block Diagram 13 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 14: ...7 Wiring Diagram CS A18DKD CU A18DKD CS A24DKD CU A24DKD 14 ...

Page 15: ... 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 Heating operation the compressor will stop running and restart as shown in below figure 8 1 1 Heating Operation Time Diagram 15 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 16: ...tting 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 2 1 Cooling Operation Time Diagram 16 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 17: ...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 temper...

Page 18: ...ic operation mode started Present Judgement Next Mode Mode Cooling Soft Dry Heating O O Cooling 23 C Cooling Judgement Not Applicable Judgement Heating 23 C Above Below 23 C O O Soft Dry 20 C Soft Dry Not Applicable Judgement Judgement Heating 20 C Above Below 20 C O O Heating Cooling Judgement Not Applicable Judgement 25 C Heating 25 C Above Below 25 C Automatic Set Temperature For each operation...

Page 19: ...t is turn on again within the period This phenomenon is to balance the pressure inside the refrigerant cycle 8 5 2 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 cooling mode 5 C heating mode or less for continuous 2 minutes compressor will stop a...

Page 20: ...um 60 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit 8 5 5 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 8 5 6 Anti Freezing Control If the temperature of ...

Page 21: ...diately when above condition is changed Anti Dew formation is control by 1 Increasing Air Flow Volume a Lo fan speed Lo fan speed is changed to Lo after 30 min to prevent dew formation b QLo fan speed Dew formation may occurs at QLo cool therefore QLo cool is operated only 1 hr 30 min 1 hr QLo 30 min QLo 100 rpm After that it operates at QLo 180rpm However Quiet LED remains on 2 Norrowing Vertical...

Page 22: ...angle change from 0 11 22 33 44 to 14 18 22 26 30 under Cooling and Soft Dry operation mode For 8 5 8 to 8 5 13 information applies only to Heating Operation 8 5 8 Overload Protection Control Outdoor Fan Control If the temperature of the Outdoor Heat Exchanger less than 3 C Outdoor Fan is ON The Outdoor Fan stop when Outdoor Heat Exchanger temperature is T or more according to Outdoor Air Temperat...

Page 23: ...event the refrigerant flow process sound for being occur 8 5 10 Outdoor Fan Motor Control When compressor stops reaches room temperature outdoor fan will operate for 30 seconds forced operation This is to release the heat and to obtain the lowest pressure as fast as possible 8 5 11 Hot Start Control Hot Start Control is to prevent cool air discharge into the room when heating operation start When ...

Page 24: ...at outdoor heat exchanger Normal Deicing Deice operations detection commences after 60 minutes of Heating operation starts or 60 minutes after previous deice operation If the TRS Thermal Read Switch senses the outdoor piping temperature drops to 4 C TRS CLOSE or less for 50 sec continuously during compressor is in operation deice will start There is no detection during Outdoor Fan stops Overload D...

Page 25: ...Normal Deicing Time Diagram Overload Deicing Time Diagram 25 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 26: ... 1380 Lo 1190 1280 Lo Lo 980 1070 SLo SLo 760 830 SSLo 300 300 QSHi QHi 1360 1550 QHi 1300 1490 QMe QMe 1220 1380 QLo 1170 1280 QLo 1090 1180 8 6 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 26 CS A18DKD CU A18DKD CS A24DK...

Page 27: ...oor fan will start to operate at SLo to circulate the air in the room This is to obtain the actual reading of the intake air temperature 6 When the compressor resume operation indoor fan will operate at Me fan speed after 70 seconds from the restart of compressor to provide comfort and lesser noise environment Auto Fan Speed during Soft Dry operation 1 Indoor fan will rotate alternately between of...

Page 28: ...d 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 7 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 t...

Page 29: ... periods At that condition the vane will stop swinging and rest at 22 angle When the horizontal airflow direction is set to Manual using the remote control the automatic airflow is released and the airflow direction vane move left and right in the range shown in the diagram The louver can be adjusted by pressing the button to the desired vane position When stopped with remote control the vanes is ...

Page 30: ...g In Auto setting the vane will automatically shift between upper and lower limit depending on the intake air temperature as Heating Mode Airflow Direction Auto Control However the upper and lower limit will be shifted 5 downward Powerful Mode will operate for 15 minutes only and operation will shift back to previous setting mode Powerful operation stops when Powerful operation has operate for 15 ...

Page 31: ...he Quiet Mode is set at the remote control Quiet Mode LED illuminates The sound level will reduce either around 2 dB Lo or 3 dB Hi Me against the present sound level operation Quiet setting of fan speed rpm refer to Indoor Fan Speed Control Manual Airflow Direction Rpm control during Lo Me Hi Cool 31 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 32: ...t to user by producing minus ion in discharge air 8 12 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 and Air Circulation operations 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 IO...

Page 33: ...nizer 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 c...

Page 34: ...can be omitted by open the circuit of JX2 Refer Circuit Diagram 8 15 Remote Control Signal Receiving Sound Long beep sound will be heard when Stopping the air conditioner using OFF ON operation button Stopping the Quiet Mode Stopping the Powerful Mode Stopping the Ion Mode Short beep sound will be heard for other setting To switch off the beep sound Press the Auto Operation Button behind the front...

Page 35: ...9 Operating Instructions 35 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 36: ...36 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 37: ...37 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 38: ...38 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 39: ...39 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 40: ...40 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 41: ...ll 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 eno...

Page 42: ...ection in case of emergency In some countries permanent connection of this air conditioner to the power supply is prohibited 1 Power supply connection to the receptacle using a power plug Use an approved 16A power plug with earth pin for 2 0HP A18DK and 20A for 2 5HP C24DK A24DK for the connection to the receptacle 2 Power supply connection to a circuit breaker for the permanent connection Use an ...

Page 43: ...ed 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 Do not place any obs...

Page 44: ...with the thread and using a level gauge 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 na...

Page 45: ...3 For the embedded piping 45 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 46: ...ire 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 INSTALLATION OF SUPER ALLERU BUSTER FILTER 1 Open the front panel 2 Remove the air filter 3 Remove Supersonic air purifying device 4 Open the Supersonic air purifying device frame 5 ...

Page 47: ... 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 A beep 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 changed over by the following step a Re...

Page 48: ...n 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 MODEL Piping size Torque Gas Liquid A18DK 1 2 55 N m 1 4 18 N m C24DK A24D...

Page 49: ... 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 10 3 4 EVACUATION OF THE EQUIPMENT CAUTION If gauge needle does not move from 0 cmHg 0 Mpa to 76 cmHg 0 1 Mpa in step above take the following measure If the leak stops when the piping connections are tigh...

Page 50: ...than the following CS CU C24DKD 0 13 Ω CS CU A24DKD 0 06 Ω 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 ind...

Page 51: ...n Re installation Operation Open Open Close With valve cap With valve cap With cap Pumping down Close Open Open Transferring Clockwise Counter Clockwise Connected manifold gauge Evacuation Open Open Open Servicing With vacuum pump Gas charging Open Open Open Servicing With charging cylinder Pressure check Open Servicing Open Open Connected manifold gauge Gas releasing Open Servicing Open Open Conn...

Page 52: ... PROCEDURE IN ORDER TO AVOID GAS LEAKAGE 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 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port cap at a torque of 18 N m with a torque wrench 7 Remove the valve caps of the 2 way valve...

Page 53: ... conditioner at the cooling cycle and stop it when the gauge indicates 0 MPa 0 kg cm2 G 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 Simply press the pumping down button if it is equipped So that the unit can be operated 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ...

Page 54: ...e 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 air remain in the indoor unit and refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction 7 Tighten the service port cap at a torque of 18 N m with a torque wrench 8 Remo...

Page 55: ...nd discharge the refrigerant until the gauge indicates 0 05 MPa 0 5 kg cm2 G to 0 1 MPa 1 kg cm2 G 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 cm2 G discharge the refrigerant until the gauge indicates 0 05 MPa 0 5 km cm2 G to 0 1 MPa 1 kg cm2 G If this is the case it will not be necessary to apply a evacuation Disch...

Page 56: ...a 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 11 1 5 Evacuation 56 CS A18DKD CU A18DKD CS A24DKD CU ...

Page 57: ...oling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 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 4 Immediately disconnect the charge hose from the 3 way v...

Page 58: ...m 18 N m 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 6 Set the 3 way valve to the opened position 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way...

Page 59: ...e low pressure valve on the charge set slightly to purge air from the charge hose 5 Set the 2 way valve to the close position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1 kg cm2 G 0 1 MPa 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 cm2 G 0 3 to 0 5 MPa 8 Disconnect the charge se...

Page 60: ...e a torque wrench to tighten the flare nut on the 2 way valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg cm2 G 0 3 to 0 5 MPa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be s...

Page 61: ...ndicates 0 5 to 1 kg cm2 G 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 cm2 G 0 1 MPa discharge the refrigerant until the gauge indicates 0 5 to 1 kg cm2 G 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 th...

Page 62: ...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 11 2 5 Evacuation Installation Procedure 62 CS A18DKD CU A18DKD CS A24D...

Page 63: ... in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 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 4 Immediately disconnect the charge hose from t...

Page 64: ...elease the CN SONIC connector Fig 4 Release the CN STM1 connector Fig 4 Release the CN STM2 connector Fig 4 Release the hooks that hold the Electronic Controller and pull out the Electronic Controller Fig 4 Release the CN FM connector Fig 4 Release the AC01 white connector Fig 4 Release the two RY PWR connector Fig 4 Fig 1 Fig 2 Fig 3 Fig 4 12 Servicing Information Caution Pb free solder has a hig...

Page 65: ... CN STM2 connector Fig 5 g Release the CN DISP connector Fig 5 h Pull out the Drain Hose from outlet to remove the Discharge Grille Fig 5 2 Release the ION connectors Fig 6 3 Release the 3 screws Fig 6 4 By pressing down the hook at the left you will be able to remove the Control Board Fig 6 5 Remove the screw at the Cross Flow Fan Fig 7 6 Remove the Bearing Fig 8 7 Remove the screws at the left o...

Page 66: ... in the Fig 7 before installing the Cross Flow Fan When the batteries are inserted for the first time or the batteries are replaced all the indications will blink and the remote control might not work If this happen remove the cover of the remote control and you will find a resetting terminal and by shorting it with a minus screwdriver it will return to normal Fig 9 12 3 Remote Control Reset 66 CS...

Page 67: ...ong beep Turn OFF remote control signal receiving sound After Auto OFF ON Button is pressed the 20s counter for various setting mode is restarted 12 4 2 Select Remote Control Transmission Code There are 4 type 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 contr...

Page 68: ...cle 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 on the right 13 Troubleshooting Guide 68 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 69: ...ompressor and 4 way valve 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 excee...

Page 70: ...14 Technical Data 14 1 Thermostat characteristics 70 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 71: ...14 2 Operation characteristics 71 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 72: ...72 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 73: ...or Unit 15 1 CS A18DKD CS A24DKD 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 A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 74: ... INDICATOR COMPLETE 1 CWE39C1116 0 25 INDICATOR HOLDER 1 CWD932435 26 INDICATOR HOLDER 1 CWD932436 27 SENSOR COMPLETE 1 CWA50C2122 0 28 CONTROL BOARD TOP COVER 1 CWH131210 29 CONTROL BOARD FRONT COVER 1 CWH131209 30 REMOTE CONTROL COMPLETE 1 CWA75C2624 0 31 FRONT GRILLE COMPLETE 1 CWE11C3126 CWE11C3127 0 32 INTAKE GRILLE COMPLETE 1 CWE22C1159 33 GRILLE DOOR 1 CWE141076 34 AIR FILTER L 1 CWD001137 ...

Page 75: ...oor Unit 17 1 CU A18DKD CU A24DKD 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 75 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 76: ...CWH102206 21 CAPACITOR F M 1 DS441355NPQA 0 22 CAPACITOR COMP 1 CWA312079 0 23 HOLDER CAPACITOR 1 CWH30060 24 TERMINAL BOARD ASS Y 1 CWA28K1070 25 CABINET SIDE PLATE L 1 CWE041082A 26 HANDLE 1 CWE161010 27 CABINET SIDE PLATE R 1 CWE041083A 28 HANDLE 2 CWE16000E 29 CABINET FRONT PLATE ASS Y 1 CWE06K1043 30 WIRE NET COMPLETE 1 CWD041041A 31 CABINET TOP PLATE ASS Y 1 CWE03K1009A 32 CONTROL BOARD COVE...

Page 77: ...RN SUPERSONIC BLU QUIET ORG POWERFUL ORG D104 BZ01 BZ e c b Q01 R55 1k 1 2 3 4 5 6 7 9 8 16 15 14 13 12 11 10 IC05 B1HBGGF00013 ELECTRONIC CONTROL UNIT IC101 3 1 2 HA XH4 C22 0 01 R68 10k e c b Q08 e c b Q07 C49 D13 R38 R16 R88 10k R69 10k C35 C34 C33 R15 R12 R13 C19 D106 D102 D103 D105 D101 R101 47 R14 R17 R34 10k C01 0 01 R40 10k C32 0 1 3 2 1 3 2 1 R1 1k R3 1M X1 IC1 R2 5 1k C1 0 1 CN SONIC CN1...

Page 78: ... P03 NTP3 P02 NTP2 P01 NTP1 P00 NTP0 Vss1 X1 X2 IC XT1 XT2 AVref P10 ANO Reset AVd0 CN STM1 1 2 3 4 5 1 2 3 4 5 ZH5 VERTICAL IC06 B1HBGGF00013 R04 R05 43 2W 43 2W 1 2 3 4 5 6 7 9 8 16 15 14 13 12 11 10 CN STM2 1 2 3 4 5 1 2 3 4 5 ZH5 HORIZONTAL R09 10k IC02 5 6 8 3 1 RS DO DI R B CS SK 4 Vcc GND 2 7 C3EBD0000021 JX2 R57 20k C05 0 1 R06 24k C03 0 01 1 6V C30 0 1 R10 10k AIR TEMP SENSOR 15k 3950 20k...

Page 79: ... 1 4W R112 6 2k 1 4W R113 6 2k 1 4W R114 6 2k 1 4W PC04 4 1 2 3 R75 7 5k PC06 feedback 1 4 3 2 R78 5 62k C46 10 50V C11 0 01 25V ZD03 8 5V PC05 Q04 1 4 3 2 c b e C48 0 01 PC03 4 1 2 3 D03 R72 3 9k R73 330k R74 330k R71 100k R70 100k Z01 L01 DB03 TH01 TH02 C47 0 1 450V C20 3300 35V C14 410 25V C26 100 16V R99 82k 1 4W R98 82k 1 4W R97 82k 1 4W R96 82k 1 4W IC09 G I 5V 12V I G IC08 DB02 NR T01 5 8 1...

Page 80: ...102 C101 C7 GND CN3 HIGH VOLTAGE IONIZER RED BLU VLT RED BLU BRW or YLW FAN MOTOR ORG WHT BLU COMPRESSOR CAPACITOR RED GRY BLK BLU BLK BLU BLU RY HOT CR1 1 2 3 4 RY DEICE YLW COIL 4 WAYS VALVE ELECTRONIC CONTROLLER COMP VLT TF 1 DB1 DB2 C13 FUSE T 2A L 250V FM2 ORG FM1 BRW ZNR2 ZNR4 ZNR3 RY H L RY OFF CN TH WHT SENSOR PIPE TEMP SENSOR AIR TEMP TF 2 AC1 WHT HOT 1 RED HOT 2 BLK DEICE GRY CAPACITOR 1...

Page 81: ...81 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 82: ...zing Control Cooling 40 sec 4 sec 70 sec 7 sec 20 sec 2 sec 180 sec 18 sec Soft Dry 40 sec 4 sec 360 sec 36 sec Comp Reverse Rotation Detection 5 min 30 sec Comp ON 5 min and above 2 min 0 sec Comp Fan Motor Delay Timer 1 6 sec 0 sec Powerful Mode Operation 15 min 15 sec Random Auto Restart Control 0 62 sec 0 6 2 sec 4 Way Valve 5 min 30 sec After Deice Ended 30 sec 3 sec Comp OFF after deice Hots...

Page 83: ...19 2 Remote Control 83 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 84: ...19 3 Print Pattern Indoor Unit Printed Circuit Board TOP VIEW BOTTOM VIEW 84 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 85: ...19 4 Print Pattern Indicator Receiver Printed Circuit Board TOP VIEW BOTTOM VIEW 85 CS A18DKD CU A18DKD CS A24DKD CU A24DKD ...

Page 86: ...19 5 Print Pattern Outdoor Unit Printed Circuit Board TOP VIEW BOTTOM VIEW 86 CS A18DKD CU A18DKD CS A24DKD CU A24DKD PHAAM Printed in Malaysia ...

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