Panasonic CS-W18CKE Service Manual Download Page 2

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11.2. TOOLS FOR INSTALLING/SERVICING REFRIGERANT

PIPING

11.3. REFRIGERANT PIPING WORK

11.4. INSTALLATION, TRANSFERRING, SERVICING

12 Servicing Information

12.1. Indoor Electronic Controllers Removal Procedures

12.2. Cross Flow Fan Indoor and Fan Motor Removal

Procedures

13 Troubleshooting Guide

13.1. Refrigeration cycle system

14 Technical Data

15 Exploded View

16 Replacement Parts List

17 Exploded View

18 Replacement Parts List

•

High Efficiency

•

Compact Design

•

Comfort Environment

−

Ionizer control for generate negative ion in discharge air

−

Air filter with function to reduce dust and smoke

−

Wider range of horizontal discharge air

−

New Automatic air swing and manual adjusted by
remote control for horizontal airflow.

•

Auto Restart

−

Random auto restart after power failure for safety restart
operation

•

Removable and Washable Front Panel

•

Remote Control Self-illuminating Button

•

Catechin Air Purifying Filter

−

Trap dust, tobacco smoke and tiny particles

−

Prevent the growth of bacteria and viruses trapped

•

Triple Deodorizing Filter

−

Absorb odours produced by wall paper, construction
material and living environment

19 Electronic Circuit Diagram

19.1. REMOTE CONTROL

19.2. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT

BOARD

TOP VIEW

19.3. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT

BOARD

BOTTOM VIEW

19.4. PRINT PATTERNOUTDOOR UNIT PRINTED CIRCUIT

BOARD

•

Quality Improvement

−

Gas leakage protection

−

Prevent compressor reverse cycle

−

Inner protector

−

Noise prevention during soft dry operation.

−

Anti-dew Formation Control (Cooling & Soft Dry)

−

Overload Protection Control (Heating)

−

Outdoor Fan Control

−

Compressor High Pressure Control

−

Blue Coated Condenser

−

High resistance to corrosion.

•

Operation Improvement

−

Quiet mode to provide quiet operation

−

Powerful mode to reach the desired room temperature
quickly

•

Long Installation Piping

−

Long piping up to 25 meter

•

24-hour Timer Setting

•

Environmental Friendly

−

R410A, which does not contain chlorine, is used as its
refrigerant, so there is no danger of damage to the
ozone layer in stratosphere.

1 Features

CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE

Summary of Contents for CS-W18CKE

Page 1: ...ghts reserved Unauthorized copying and distribution is a violation of law CS W18CKE CU W18CKE CS W24CKE CU W24CKE 8 6 Random Auto Restart Control 28 8 7 Airflow Direction Control 28 8 8 Delay ON Timer Control 29 8 9 Remote Control Signal Receiving Sound 29 8 10 Powerful Mode Operation 30 8 11 Ionizer Operation 31 9 Operating Instructions 35 10 Installation Instructions 43 10 1 Safety Precautions 4...

Page 2: ...cco smoke and tiny particles Prevent the growth of bacteria and viruses trapped Triple Deodorizing Filter Absorb odours produced by wall paper construction material and living environment 19 Electronic Circuit Diagram 78 19 1 REMOTE CONTROL 84 19 2 PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW 85 19 3 PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW 86 19 4 PRINT PATTERNOUTDOOR...

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 Mode Operation OFF ON POWERFUL...

Page 4: ...up in operation blinks in Automatic Operation Mode judging and Hot Start operation QUIET Orange Lights up in Quiet Mode Operation TIMER Orange Lights up in Timer Setting POWERFUL Orange Lights up in Powerful Mode Operation ION Green Lights up in Ionizer Mode Operation Operation Mode Heating Cooling Soft Dry and Automatic Mode Powerful Operation Reaches the desired room temperature quickly Time Del...

Page 5: ... 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 reaches to 13 5 C Lo speed When outdoor temperature reaches to 15 5 C For Over heating Protection the Fan is switched ON or OFF depending on the piping temperature and the outdoor temperature Deice Control To prevent fros...

Page 6: ...55 Heating 53 Cooling 68 Heating 69 Electrical Data Input Power kW Cooling 1 65 Heating 1 70 Running Current A Cooling 7 4 Heating 7 6 EER W W BTU hW Cooling 3 21 10 95 COP W W BTU hW Heating 3 26 11 13 Starting Current A 27 0 Piping Connection Port Flare piping inch inch G Half Union 1 2 L Half Union 1 4 G 3 way valve 1 2 L 2 way valve 1 4 Pipe Size Flare piping inch inch G gas side 1 2 L liquid ...

Page 7: ...Plate fin configuration forced draft 2 15 2 26 FPI 21 16 Size W H L mm 810 315 25 4 769 2 732 9 660 4 44 Refrigerant Control Device Capillary Tube Refrigeration Oil cm3 RB68A OR FRE0L ALPHA 68M 670 Refrigerant R410A g oz 1 620 57 2 Thermostat Electronic Control Electronic Control Protection Device Inner Protector Capillary Tube Length mm Cooling 1 180 Heating 1 048 Flow Rate l min Cooling 8 7 Heat...

Page 8: ... Coolling 74 Heating 74 Electrical Data Input Power kW Cooling 2 78 Heating 2 69 Running Current A Cooling 13 1 Heating 12 9 EER W W BTU hW Cooling 2 53 8 63 COP W W BTU hW Heating 2 87 9 79 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 2 way valve 1 4 Pipe Size Flare piping inch inch G gas side 5 8 L liquid side 1 4 G g...

Page 9: ... Row Stage Plate fin configuration forced draft 2 15 2 26 FPI 21 16 Size W H L mm 810 315 25 4 769 2 732 9 660 4 44 0 Refrigerant Control Device Capillary Tube Refrigeration Oil cm3 RB68A OR FRE0L ALPHA 68M 1 130 Refrigerant R410A g oz 1 780 62 8 Thermostat Electronic Control Electronic Control Protection Device Inner Protector Capillary Tube Length mm Cooling 663 Heating 550 Flow Rate l min Cooli...

Page 10: ...4 Dimensions 10 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 11: ...11 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 12: ...5 Refrigeration Cycle Diagram 12 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 13: ...6 Block Diagram 13 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 14: ...7 Wiring Diagram CS W18CKE CU W18CKE CS W24CKE CU W24CKE 14 ...

Page 15: ...speed adjustment 3 settings from Lo to Hi can be carried out by using the Fan Speed selection button at the remote control Speed COOL DRY Heat CS W24CKE CS W18CKE S Hi Hi 1580 1440 Hi 1530 1380 Me Me 1430 1290 Lo Lo 1360 1240 Lo 1260 1160 Lo Lo 1070 980 S Lo S Lo 830 760 SS Lo SS Lo 300 300 Q SHi Q Hi 1480 1340 Q Hi 1430 1280 Q Me Q Me 1330 1190 Q Lo 1260 1140 Q Lo 1160 1060 15 CS W18CKE CU W18CKE...

Page 16: ...opped for 7 minutes even if the room temperature is between the compressor ON temperature and OFF temperature 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 or less for 2 minutes compressor will stop and restart automatically Time Delay Safety Control is valid T Intake air temperature Indoor h...

Page 17: ...eed Transistor Motor 3 QLo fan speed Induction Motor When Automatic Fan Speed is selected at Remote Control during cooling operation Fan speed rotates in the range of Hi to Me Deodorizing Control 17 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 18: ... 3 dB against the present sound level operation Quiet setting of fan speed rpm refer to Indoor Fan Speed Control Dew formation become severe at Quiet Lo cool therefore i For Transistor Motor Quiet Lo Cool is operated only 1h 30 minute 1h QLo 30 min QLo 100 After that it goes back to QLo 180 rpm However quiet LED remains on ii For Induction Motor Quiet Lo Cool is operated only 1h 30 minute 1h QLo 3...

Page 19: ...o cool RPM control during Hi Me cool Auto Fan Speed Quiet Mode Operation will stop if Quiet mode button is pressed again Stopped by ON OFF switch Timer OFF activates Powerful mode button is pressed 19 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 20: ... Indoor Fan Compressor and Outdoor Fan stop for 6 minutes Once the compressor stops it will not start for 3 minutes during Cooling operation Same as Anti Freezing Control for Cooling Mode operation For Soft Dry region 6 minutes waiting is valid during compressor stops Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation For Soft Dry region 6 minutes waiting is valid du...

Page 21: ...Soft Dry Operation Time Diagram Quiet Operation Control Same as Quiet Operation Control for Cooling Mode operation 21 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 22: ...or Air Temperature region as table below The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49 C During starting of Heating mode and after deice Outdoor Fan ON for 90 sec Hi b Compressor High Pressure Control If the indoor heat exchanger becomes 68 C or more the compressor will stop and restart automatically Time Delay Safety Control 4 minutes waiting 4 way valve ON durin...

Page 23: ...ure If the compressor is operating continuously for 5 minutes or longer and the temperature difference between indoor heat exchanger and intake air is 5 C or less for 2 minutes compressor will stop and restart automatically Time Delay Safety Control is valid T Indoor heat exchanger temperature Intake air temperature This is to protect reverse rotation of the compressor when there is an instantaneo...

Page 24: ...eration deice will start There is no detection during Outdoor Fan stops Overload Deicing During heating operation if the outdoor Fan OFF duration due to overload control is accumulated up to 60 minutes and after compressor starts for 1 minutes deicing starts Deicing ends when a 12 minutes after deicing operation starts b The outdoor piping temperature rises to about 12 C After deicing operation co...

Page 25: ...a Normal Deicing Time Diagram b Overload Deicing Time Diagram 25 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 26: ...eased 3 dB against the present sound level operation Quiet setting of fan speed rpm refer to Indoor Fan Speed Control Manual Fan Speed Rpm control during Lo Me Hi Cool Auto Fan Speed Rpm control depends on the piping air temperature sensor of Indoor heat exchanger Quiet Mode Operation will stop if Quiet mode button is pressed again Stopped by ON OFF switch Timer OFF activates Powerful mode button ...

Page 27: ...t 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 Above 25 C 25 C below Automatic Set Temperature Refer 3 as below 3 Automatic Set Temperature For each operat...

Page 28: ...e closing position During Anti dew condensation prevention Airflow Direction Manual control angle change from 14 19 24 30 36 to 16 18 20 22 24 under Cooling and Soft Dry operation mode 8 6 Random Auto Restart Control If there is a power failure during air conditioner operation operation will be automatically restarted after 3 to 4 minutes when the power is resumed It will start with previous opera...

Page 29: ...ensation prevention Airflow Direction Manual control angle change from 0 11 22 33 44 to 14 18 22 26 30 under Cooling and Soft Dry operation mode 8 8 Delay ON Timer Control When the Delayed ON Timer is set by using the remote control the unit will start operate slightly before the set time so that the room will reach nearly to the set temperature by the desired time For Cooling and Soft Dry mode th...

Page 30: ...d 2 Heating Mode When the Powerful Mode is set the set temperature will be automatically increased 3 C against the present setting temperature Higher temperature 30 C The Fan Speed will shift as shown below Vertical Airflow Direction In Manual setting the vane will automatically shift down 5 lower than previous setting In Auto setting the vane will automatically shift between upper and lower limit...

Page 31: ...s operated mode Auto Cool Dry Heat ion operation by OFF ON switch 2 4 4 During ion only operation if power failure occur after power resume ionizer air conditioner resumes immediately 5 After error 24 times about 11h 30 min ion fan off with Ion LED blinks continuously Detail refer to Ionizer Error detection control b Operation Mode Ionizer Operation 1 Ionising Operation Start Condition When air co...

Page 32: ...LED blinks continuously To cancel ion LED blinking press ion button at remote control or Auto operation switch at air conditioner unit If ion button is pressed again ion LED blinks again The error can be reset by i Operation ON OFF button press to operation OFF ii Auto operation switch press to operation OFF iii Operation OFF due to Timer OFF reach iv Timer set ON operation from ON to OFF b When I...

Page 33: ...one of the following conditions happen a Power reset b Remote control operation ON OFF button press c Auto operation switch press d Operation OFF due to Timer OFF 4 Ion auto restart Ion will auto restart if actual Ion was ON with no error protection control during power shutdown Otherwise Ion will not auto restart 5 Ion LED blinking can ON OFF during error protection by following conditions a Pres...

Page 34: ...34 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 35: ...9 Operating Instructions 36 37 36 37 37 37 37 37 39 38 35 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 36: ...39 40 41 38 36 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 37: ...39 37 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 38: ...35 37 38 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 39: ...38 39 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 40: ...39 40 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 41: ...41 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 42: ...Luminous button convenient in the dark 35 36 37 37 37 38 38 38 39 38 39 42 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 43: ...lation 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 enough or installation is not properly done the set will drop and cause injury 5 For electrical work follow the local national wiring standard regulation and this installation instruction An independent circ...

Page 44: ...ection in case of emergency In some countries permanent connection of this room 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 V18CK W18CK and 20A for 2 5HP V24CK W24CK for the connection to the receptacle 2 Power supply connection to a circuit breaker for the permanent connect...

Page 45: ...ning 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 obstacles which may cause a short circuit of the discharged air If piping length is ove...

Page 46: ...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 47: ...3 For the embedded piping This can be used for left rear piping left bottom piping also 47 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 48: ... of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth lead wire 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 AIR PURIFYING FILTERS 1 Open the front panel 2 Remove the air fil...

Page 49: ...ously for 10 sec and above A pep pep sound will occur at the tenth sec in order to indicate the ON OFF change over of remote control receiving sound 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 After selecting the best location start installation according to Indoor Outdoor Unit Installation Diagram 1 Fix the unit on co...

Page 50: ... ten minutes 4 Close the Low side valve of the charging set and turn off the vacuum pump Make sure that the needle in the gauge does not move after approximately five minutes Note BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port caps of the 3 way val...

Page 51: ...t and outdoor unit shall be approved polychloroprene sheathed 3 2 5 mm2 V18CK V24CK or 5 2 5 mm2 W18CK W24CK flexible cord type designation 245 IEC 57 or heavier cord 3 Secure the cable onto the control board with the holder clamper 4 Attach the control board cover back to the original position with the screw 51 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 52: ... from drain hose of the indoor unit EVALUATION OF THE PERFORMANCE Operate the unit at cooling operation mode for fifteen minutes or more Measure the temperature of the intake and discharge air Ensure the difference between the intake temperature and the discharge is more than 8 C NOTE These equipment shall be connected to a suitable mains network with a main impedance less than the following CS CU...

Page 53: ...an cause an oxygen deficiency if it leaks into a closed room since it collects in the lower area of the room It also generates toxic gas when it is directly exposed to a flame so it must be used in a well ventilated environment where it will not collect Table 1 Physical comparison of R410A and R22 R410A R22 Composition wt R32 R125 50 50 R22 100 Boiling point C 51 4 40 8 Vaporizing pressure 25 C 1 ...

Page 54: ...done by a specialist Incorrect repairs can result in a water leakage electric shock fire etc 11 2 TOOLS FOR INSTALLING SERVICING REFRIGERANT PIPING 11 2 1 Necessary Tools In order to prevent an R410A AC from mistakenly being charged with any other refrigerant the diameter of the 3 way valve service port on the outdoor unit has been changed Also to increase its ability to withstand pressure the opp...

Page 55: ...ches Table 5 Conventional wrenches R410A wrenches For 1 4 opposite side x torque 17 mm x 18 N m 180 kgf cm 17 mm x 18 N m 180 kgf cm For 3 8 opposite side x torque 22 mm x 42 N m 420 kgf cm 22 mm x 42 N m 420 kgf cm For 1 2 opposite side x torque 24 mm x 55 N m 550 kgf cm 26 mm x 55 N m 550 kgf cm Because the pressure is higher for the R410A type the conventional type cannot be used Table 6 Differ...

Page 56: ...ere used with CFC and HCFC cannot be used with R410A because there is no chlorine in the refrigerant The present R134a leak detector can be used but the detection sensitivity will be lower setting the sensitivity for R134a at 1 the level for R410A will drop to 0 6 For detecting small amounts of gas leakage use the electric gas leak detector for HFC refrigerant Detection sensitivity with R410A is a...

Page 57: ...one manually by opening and closing the valve 9 Refrigerant cylinders The R410A cylinders are labeled with the refrigerant name and the coating color of the cylinder protector is pink which is the color stipulated by ARI of the U S Cylinders equipped with a siphon tube are available to allow the cylinder to stand upright for liquid refrigerant charging 10 Charging orifice and packing for refrigera...

Page 58: ...e using When using a conventional flaring tool use the copper pipe gauge for clearance adjustment etc to ensure the correct A dimension see Fig 10 Fig 10 Flaring dimensions 11 3 1 Piping Materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg 10m Do not use pipes that are crushed deformed or discolored especially the inside surface If ...

Page 59: ...the axial center of the union c Use a torque wrench and tighten to the specified torque The tightening torque for R410A is the same as the conventional torque value for R22 Be careful because if the torque is too weak it may lead to a gas leak If it is too strong it may split the flare nut or make it impossible to remove the flare nut Table 15 R410A tightening torque Nominal diameter Outside diame...

Page 60: ...en or dried with a vacuum pump 11 4 INSTALLATION TRANSFERRING SERVICING 11 4 1 Inspecting Gas Leaks with a Vacuum Pump for New Installations Using New Refrigerant Piping 1 From the viewpoint of protecting the global environment please do not release refrigerant into the atmosphere a Connect the projecting side pin pushing side of the charging hose for the manifold gauge to the service port of the ...

Page 61: ...oil is different When replacing an R22 AC unit with an R410A AC unit the following checks and cleaning procedures are necessary but are difficult to do because of the chemical characteristics of the refrigerating machine oil as described in items c and d of section About R410A Refrigerant In this case you should use new refrigerant piping rather than the existing piping 1 Piping check Because of t...

Page 62: ...ld gauge and purge the air 2 4 Watch the liquid refrigerant closely at this point 8 After adjusting the electronic scale to zero open the charging valve then open the valve Lo of the manifold gauge and charge with the liquid refrigerant 2 5 Be sure to read the operating instructions for the electronic scale 9 If you cannot charge the stipulated amount operate the unit in the cooling mode while cha...

Page 63: ...hould occur from the brazed part 2 Prevention of Overheating Due to heating the interior and exterior surfaces of treated metal may oxidize Especially when the interior of the refrigerant circuit oxidizes due to overheating scale occurs and stays in the circuit as dust thus exerting a fatally adverse effect So make brazing at adequate brazing temperature and with minimum of heating area 3 Overheat...

Page 64: ...r Fig 4 Release the CN MAIN connector Fig 4 Release the CN 001 connector Fig 4 Release the CN 002 connector Fig 4 Release the CN STM1 connector Fig 4 Release the CN STM2 connector Fig 4 Release the CN ION connector Fig 4 Release the hooks that hold the Electronic Controller Fig 3 Fig 1 Fig 2 Fig 3 Fig 4 12 Servicing Information Caution Pb free solder has a higher melting point than standard solder...

Page 65: ... 5 e Release the CN STM1 connector Fig 5 f Release the CN ION connector Fig 5 2 Pull out the Drain Hose from outlet to remove the Discharge Grille Fig 6 3 Removing the right and left screws Fig 7 4 By pressing down the hook at the left and pushing up the hook at the right you will be able to remove the Control Board Fig 7 5 Remove the screw at the Cross Flow Fan Fig 8 Fig 5 Fig 6 Fig 7 Fig 8 12 2 ...

Page 66: ...pull out the Cross Flow Fan from shaft By then Fan Motor can be taken out Fig 10 REMINDER To reinstall the Fan Motor put it back in place adjust the position of the Fan Motor s leadwire appropriately as shown in the Fig 8 before installing the Cross Flow Fan Fig 9 Fig 10 66 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 67: ...s screwdriver it will return to normal Changing the wireless remote control transmission code When two indoor units are installed in the same room in order to prevent operating errors caused by using two remote controls cut a jumper wire at the remote control printed circuit board J A and cut a jumper wire at the indoor printed circuit board JX4 It is possible to select from 4 types of transmissio...

Page 68: ...icient 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 13 1 Refrigeration cycle system 68 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

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 70 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 71: ... 01 1 80 4 97 3 83 1 95 230V Outdoor Temp C Indoor wet bulb temp 30 35 40 46 TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 6 97 5 29 2 55 6 52 5 07 2 74 6 06 4 87 2 93 5 51 4 63 3 16 19 0 C 7 03 2 78 19 5 C 7 66 5 54 2 59 7 16 5 32 2 79 6 66 5 12 2 99 6 05 4 87 3 22 22 0 C 8 34 5 74 2 64 7 80 5 52 2 84 7 25 5 33 3 04 6 59 5 08 3 28 TC Total Cooling Capacity kW Indoor 27 C 19 C SHC Sensible Heat C...

Page 72: ...72 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 73: ...73 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 74: ... Exploded View 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 74 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 75: ...3 ELECTRONIC CONTROLLER POWER 1 CWA743348 0 25 P C B RECEIVER 1 CWA742724 26 ELECTRONIC CONTROLLER INDICATOR 1 CWE39C1089 0 27 LEAD WIRE INDICATOR 1 CWA67C4947 28 INDICATOR HOLDER 1 CWD932163 29 SENSOR COMPLETE 1 CWA50C2122 0 30 CONTROL BOARD TOP COVER 1 CWH131091 31 CONTROL BOARD FRONT COVER 1 CWH131090 32 REMOTE CONTROL COMPLETE 1 CWA75C2424 33 FRONT GRILLE COMPLETE 1 CWE11C2967 34 INTAKE GRILLE...

Page 76: ... Exploded View 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 76 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 77: ...ER 1 CWH171012 22 NUT TERMINAL COVER 1 CWH7080300 23 CONTROL BOARD 1 CWH10K1019 24 CAPACITOR FAN MOTOR 3 0MF 450V 1 F0GAH305A002 0 25 CAPACITOR COMP 1 DS371506CPNA 50MF 370VAC DS371456CPNA 45MF 370VAC 0 26 HOLDER CAPACITOR 1 CWH30060 27 TERMINAL BOARD ASS Y 1 CWA28K1021 28 ELECTRONIC CONTROLLER MAIN 1 CWA743072 30 SENSOR COMPLETE 1 CWA50C618 31 HOLDER SENSOR 1 CWH32089 32 CABINET FRONT PLATE ASS Y...

Page 78: ...Auto KR 10 R50 47k R52 1 82k C09 10 50V RY PWR ELECTRONIC CONTROL UNIT 3 4 IC201 3 1 2 SW101 HA XH4 3 4 1 2 PC01 C39 0 01 C38 0 01 C41 1000p C40 1000p C16 0 01 RY HOT R51 47k DEICE BLU HOT RED FG1 FG2 GRN YLW GRN YLW VLT RED BLU BLU BRW or YLW FAN MOTOR ORG WHT BLU COMPRESSOR CAPACITOR Fig 3 Fig 4 RED GRY BLK BLU BLK BLU BLU RED RY HOT 1 2 3 4 RY DEICE YLW COIL 4 WAYS VALVE ELECTRONIC CONTROLLER C...

Page 79: ...TP3 P02 NTP2 P01 NTP1 P00 NTP0 Vss1 X1 X2 IC XT1 XT2 AVref P10 ANO Reset AVd0 1 2 3 4 5 6 7 9 8 16 15 14 13 12 11 10 CN STM1 1 2 3 4 5 1 2 3 4 5 ZH5 VERTICAL IC05 A52A2003GR IC06 A52A2003GR2 R08 R028 43 2W 43 2W RY PWR 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 A52BR9020F JX2 R57 20k C05 0 1 R06 24k C03 ...

Page 80: ...MAIN 7 6 5 4 3 2 1 R47 510Ω C23 0 1µ R08 5 1k R01 100Ω C18 0 022µ R07 20k R29 1k C06 1000p MB R42 20k C17 47µ 25V C14 0 1µ D01 C24 0 01µ C20 100µ 16V C11 0 01µ R37 10k R38 24k JX1 RX1 C15 0 01µ R40 10k R41 24k R43 1k JX3 JX4 R02 20k R03 100Ω X01 C25 0 01µ R62 1k R61 10k 22k 22k CN ION 4 3 2 1 80 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 81: ...e b c C007 c b e R013 R031 R016 Q004 C012 R014 ZD002 ZD003 C009 C010 C011 R057 Q003 R012 C018 C008 R017 S D G R027 R026 R020 R025 R019 D045 R015 D006 D014 D013 Q006 c b e ZD006 ZD007 R048 R047 R018 R021 ZD004 C103 D101 R105 ZD101 T02 5 4 9 8 7 6 10 2 3 1 C105 C016 L101 5V I O IC101 FAN MOTOR ELECTRONIC CONTROL UNIT XH7 5 CN101 5 4 3 2 1 PH CN103 7 6 5 4 3 2 1 PH EH 4P 4 3 2 1 F1 CH1 VIN GND ERR C2...

Page 82: ...SCHEMATIC DIAGRAM 5 5 82 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 83: ...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 84: ...19 1 REMOTE CONTROL 84 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 85: ...19 2 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW 85 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 86: ...19 3 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW 86 CS W18CKE CU W18CKE CS W24CKE CU W24CKE ...

Page 87: ...19 4 PRINT PATTERN OUTDOOR UNIT PRINTED CIRCUIT BOARD 87 CS W18CKE CU W18CKE CS W24CKE CU W24CKE MAICO Printed in Malaysia ...

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