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SCHEMATIC DIAGRAM 2/3

R11  1k

C01
0.01

µ

R34
10k

R12  1k

R35  5.1k

C02
0.01

µ

R20

R21

R22

R23

R24

R25

D07

D08

D09

D10

D11

D12

R18

R19

D05

D06

P72

P73

P74

P75

P64

P65

P66

P67

P40/A00

P41/A01

P42/A02

P43/A03

P44/A04

P45/A05

P46/A06

P47/A07

P50/A8

P51/A9

RY-PWR DRIVE SIGNAL

P52/A10

P53/A11

P54/A12

P55/A13

P56/A14

P57/A15

Vss

VDD

P30

P31

P32

P33

P34

P35

P11/AN1

P12/AN2

P13/AN3

P14/AN4

P15/AN5

P16/AN6

P17/AN7

Avss

VCC

P25

P24

P23

P22/SCX

P21/S0

P20/S1

P36

46

41

42

43

44

45

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

P71

P70

P03/NTP3

P02/NTP2

P01/NTP1

P00/NTP0

Vcc

X1

X2

IC

XT1

XT2

AVref

P10/ANO

Fig. 2

Reset

AVd0

1

2

3

4

5

6

7

9

8

26

25

24

23

22

21

20

CN-STM2

1

2

3

4

5

1

2

3

4

5

(ZH5)

HORIZONTAL

R09  10k

IC02

5

6

8

3

1

RS

D6

D1

R/B

CS

SK 4

Vcc

GND

2

7

A52BR9020F

JX2

R57
20k

C05
0.1

µ

+

C03

0.01

µ

1.6V

R17  430

R16  620

R15  620

R14  620

R13  430

R10  10k

AIR TEMP. SENSOR

(15k 3950)

(20k 3950)

PIPE TEMP. SENSOR

(PH)

CN-TH

4 3 2 1

C04
0.1

µ

R30
20k

C08
0.1

µ

R33
15k

+

C07
1.00

µ

16V

C28
0.01

µ

R32
150k

4.096 MHz
(47pF X 2) 

+

R49
100k

C21
2.2

µ

50V

C12
0.01

µ

IC04

A52PST600DR

R31
1k

R56
1k

CN-MAIN

7

6

5

4

3

2

1

R47
510  

C23
0.1

µ

R08
5.1k

R01
100

C18
0.022

µ

R07  20k

R29  1k

C06

1000p

(MB)

R42

20k

+

C17
47

µ

25V

C14
0.1

µ

+

C20
100

µ

16V

C11
0.01

µ

R37
10k 

R38
39k 

JX1

RX1

C15

0.01

µ

R40
10k

R41
24k

R43

1k

JX3

JX4

R02  20k

R03  100

IC01

A52D0022GB15

X01

STEPPING
MOTOR
DRIVE
SIGNAL

BUZZER

RY-HOT DRIVE
SIGNAL

AUTO OPERATION
TEST RUN
REMOTE CONTROL
SOUND

TIMER SHORTEN

POWER CLOCK INPUT

REMOTE-CONTROL
COMMAND INPUT

AUTO RESTART

GROUND

POWER

RESET

PIPE TEMP

DEICE DETECTION

INTAKE AIR TEMP

DISPLAY

OSC

REMOTE CONTROL NO.

SHORT

SHORT

OPEN

SHORT

SHORT

OPEN

OPEN

OPEN

1

0

3

2

JX3

JX4

RX1

10K

10K

STEPPING
MOTOR 
DRIVE
SIGNAL

Fig. 1

71

CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Summary of Contents for CS-W18CKP

Page 1: ...hd 11969 T All rights reserved Unauthorized copying and distribution is a violation of law CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 11 Installation and Servicing Air Conditioner Using R410A 45 12 Servicing Information 56 13 Troubleshooting Guide 60 14 Technical Data 62 15 Exploded View 66 16 Replacement Parts List 67 17 Exploded View 68 18 Replacement Parts List 69 19 Electronic Circuit Diagram 7...

Page 2: ...r Remove unpleasant odour from the air 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 Economy mode to redu...

Page 3: ...ing 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 POWERF...

Page 4: ...Lights up in operation blinks in Automatic Operation Mode judging and Hot Start operation SLEEP Orange Lights up in Sleep Mode Operation TIMER Orange Lights up in Timer Setting POWERFUL Orange Lights up in Powerful Mode Operation ECONOMY Green Lights up in Economy Mode Operation Operation Mode Heating Cooling Soft Dry and Automatic Mode Powerful Operation Reaches the desired room temperature quick...

Page 5: ...r 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 frosti...

Page 6: ...ting 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 3 way valve 1 4 Pipe Size Flare piping inch inch G gas side 1 2 L liquid side 1...

Page 7: ...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 Refrigerant Control Device Capillary Tube Refrigeration Oil cm3 RB68A OR FRE0L ALPHA 68M Refrigerant R410A g oz 1 620 57 2 Thermostat Electronic Control Mechanical Control Protection Device Inner Protector Capillary Tube Length mm Cooling 1 180 Heating 1 048 Flow Rate l min Cooling 8 ...

Page 8: ...oolling 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 3 way valve 1 4 Pipe Size Flare piping inch inch G gas side 5 8 L liquid side 1 4 G gas...

Page 9: ...n 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 Refrigerant R410A g oz 1 780 62 8 Thermostat Electronic Control Mechanical Control Protection Device Inner Protector Capillary Tube Length mm Cooling 663 Heating 550 Flow Rate l min Cooling 13...

Page 10: ...4 Dimensions 10 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 11: ...11 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 12: ...5 Refrigeration Cycle Diagram 12 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 13: ...6 Block Diagram 13 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 14: ...7 Wiring Diagram CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 14 ...

Page 15: ...ressor will start automatically if it has stopped 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 Contro...

Page 16: ...ode Cooling Operation Time Diagram When Automatic Fan Speed is selected at Remote Control during cooling operation Fan speed rotates in the range of Hi to Me Deodorizing Control 16 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 17: ...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 dur...

Page 18: ...Soft Dry Operation Time Diagram 18 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 19: ...r 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 during...

Page 20: ...i Cold Draft Control When Automatic Fan Speed is selected at Remote Control during heating operation Fan speed rotates in the range of Me SLo according to the heat exchanger temperature 20 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 21: ...ation 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 comp...

Page 22: ...a Normal Deicing Time Diagram b Overload Deicing Time Diagram 22 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 23: ... 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 23 C Soft Dry Not Applicable Judgement Judgement Heating 23 C Above Below 23 C O O Heating Cooling Judgement Not Applicable Judgement 23 C Heating Above 23 C 23 C below Automatic Set Temperature Refer 3 as below 3 Automatic Set Temperature For each operati...

Page 24: ...Sleep shift operation starts when the room temperature reaches the setting temperature or after 1 hour of operation The setting temperature will be decrease by 2 C at the start of operation and by 3 C one hour later The fan speed refer to Indoor Fan Motor Control Sleep Mode operation time is 8 hours the operation will be stop after 8 hour When used together with the Timer the Timer has priority 8 ...

Page 25: ... fan speed is adjusted between maximum and minimum setting as shown in the table Manual Fan Speed Control Basic fan speed adjustment 3 settings from Lo to Hi can be carried out by using the Fan Speed selection button at the remote control 25 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 26: ...22 24 under Cooling and Soft Dry operation mode Horizontal Airflow Direction Auto Control When set a Airflow Direction Auto Control with remote control the vanes swings left and right as shown in the diagram The vanes does not swing when the Indoor Fan Motor stops during operation at 22 angle When stopped with remote control the discharge vent is reset and stopped at the reset position During Anti...

Page 27: ...operation will start 15 minutes before the set time For Heating mode the operation will start 30 minutes before the set time For Automatic mode the indoor fan will operate at SLo speed for 25 seconds 30 minutes before the set time to detect the intake air temperature to determine the operation mode The operation indication lamp will blink at this time 8 10 Remote Control Signal Receiving Sound Lon...

Page 28: ...w Direction In Manual or Auto setting the vane will automatically change to Auto Air Swing 2 Heating Mode When the Economy Mode is set the temperature will be automatically decreased 0 5 C against the present setting temperature The Fan Speed will shift as shown below Vertical Airflow Direction In Manual or Auto setting the vane will automatically change to Auto Air Swing 3 Economy Mode will stop ...

Page 29: ...d 2 Heating Mode When the Powerful Mode is set the set temperature will be automatically increased 3 C against the present setting temperature The Fan Speed will shift as shown below Vertical Airflow Direction In Manual setting the vane will automatically shift down 5 C lower than previous setting In Auto setting the vane will automatically shift between upper and lower limit depending on the inta...

Page 30: ...witch off and unplug the power supply Caution This sign warns of injury Do not pull the cord to disconnect the plug Do not wash the unit with water Do not use for other purposes such as preservation Do not use any combustible equipment at airflow direction Do not sit or place anything on the outdoor unit Switch off the power supply before cleaning Ventilate the room regularly Pay attention as to w...

Page 31: ...urifying filters in place 5 Insert the air filters 6 Close the front panel Remote Control To set the current time 1 Press 1 2 Then press 2 to increase or decrease the time 3 Press 1 again Set time at display will light up CHECK AUTO AUTO DRY FAN COOL FAN AUTO RESET CLOCK FAN SPEED AIR SWING OFF CANCEL ON SET 1 2 3 TIMER 1 2 6 2 1 4 5 3 Setting Temperature Press 3 to increase or decrease the temper...

Page 32: ...onditioner operation automatically Press 5 to set the operation Press 2 to increase or decrease the time Then press 3 To cancel this operation press 4 Timer Mode Operation Details When the ON Timer is set operation will start before the actual set time This is to enable the room temperature reaches the set temperature at the set time Once the ON Timer is set operation will start at the set time ev...

Page 33: ...ases Foul odour is emitted Heat Pump Model COOL 8 C or above HEAT 14 C or above Cooling Model COOL 8 C or above Heat Pump Model COOL operation with 30 C set temperature Cooling Model FAN operation Fulcrum Protruding portion on indoor unit 2 Remove the air filters 1 Raise the front panel Catechin Air Purifying Filter Solar Refreshing Deodorizing Filter HELPFUL INFORMATION Auto Operation Button Auto...

Page 34: ...ill take no longer than about 12 minutes Water drips from the outdoor unit Wait until this operation ends the power indicator will light up Frost will accumulates on the outdoor unit when the outdoor temperature is low and humidity is high This is to prevent undesired cooling effect during heating operation Call the Dealer Immediately If the following conditions occur turn off and unplug the main ...

Page 35: ...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 36: ...onnection 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 C18BK A18BK V18BK W18BK V18CK W18CK and 20A for 2 5HP C24BK A24BK XC24BK V24BK W24BK V24CK W24CK for the connection to the receptacle 2 Power supply connection to a circuit breaker for the permanent connectio...

Page 37: ... 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 obstacles which may cause a short circuit of the discharged air...

Page 38: ...ith 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 nam...

Page 39: ...3 For the embedded piping This can be used for left rear piping left bottom piping also 39 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 40: ...d Ensure the color 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 ...

Page 41: ... 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 concrete or rigid frame firmly and horizontally by bolt nut ø10 mm 2...

Page 42: ...e the valve of both the Low and High sides 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 ...

Page 43: ...n the Manifold gauge and release refrigerant from the piping through service port until the gauge indicates 0 5 0 3 MPa 3 Set both 3 way valves to open position with the Hexagonal wrench for the unit operation 10 3 5 b AIR PURGING OF THE PIPING AND INDOOR UNIT For the left pipings 1 Measure the pressure 2 Keep it for 5 10 minutes Ensure if the pressure indicated on the gauge is as same as that of ...

Page 44: ...ON 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 C18BKP5 0 20 Ω CS CU A18BKP5 0 20 Ω CS CU C...

Page 45: ...ause 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 56 M...

Page 46: ... a specialist Incorrect repairs can result in an water leakage electric shock fire etc 11 2 TOOL 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 opposing d...

Page 47: ...s 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 3 opposite side x torque 22 mm x 42 N m 180 kgf cm 22 mm x 42 N m 180 kgf cm For 1 2 opposite side x torque 24 mm x 55 N m 180 kgf cm 26 mm x 55 N m 180 kgf cm Because the pressure is higher for the R410A type the conventional type cannot be used Table 6 Differenc...

Page 48: ...re 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 ab...

Page 49: ...ne 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 Cylinder equipped with a siphon tube are available to allow the cylinder to stand upright for liquid refrigerant charging 10 Charging orifice and packing for refrigerant...

Page 50: ...ng 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 used pipes that are crushed deformed or discolored especially the inside surface If these inferior ...

Page 51: ...th 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 di...

Page 52: ...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 53: ...heck Because of the different pressure characteristics of R22 and R410A the design pressure for the equipment is 1 6 times different the wall thickness of the piping must comply with that shown in Table 10 but this is not easy to check Also even if the thickness is correct there may be flattened or bent portions midway through the piping due to sharp curves Buried sections of the piping also canno...

Page 54: ...ate the unit in the cooling mode while charging a little of the liquid at a time about 150 g time as a guideline If the charging amount is insufficient from one operation wait about one minute then use the same procedure to do the liquid charging again Precaution Never use the gas side to allow a larger amount of liquid refrigerant to be charged while operating the unit 10 Close the charging valve...

Page 55: ...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 Overheating Protection In order to prevent components near the brazed part from overheating damaged or quality deterioration due t...

Page 56: ...he CN TH connector 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 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 Typically the mel...

Page 57: ...ISP connectors Fig 5 e Release the CN STM1 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 Cross Flow Fan Indo...

Page 58: ...ll 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 0before installing the Cross Flow Fan Fig 9 Fig 10 58 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 59: ... 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 transmission...

Page 60: ...cient 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 60 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 61: ...mpressor 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 exceed...

Page 62: ...14 Technical Data 62 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 63: ...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 Ca...

Page 64: ...64 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 65: ...65 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 66: ...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 66 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 67: ...CTRONIC CONTROLLER MAIN 1 CWA742730 CWA742731 0 23 ELECTRONIC CONTROLLER POWER 1 CWA742616 0 25 P C B RECEIVER 1 CWA73C1124 26 ELECTRONIC CONTROLLER INDICATOR 1 CWE39C1046 0 27 LEAD WIRE INDICATOR 1 CWA67C3724 28 INDICATOR HOLDER 1 CWD932163 29 SENSOR COMPLETE 1 CWA50C608 0 30 CONTROL BOARD TOP COVER 1 CWH131091 31 CONTROL BOARD FRONT COVER 1 CWH131090 32 REMOTE CONTROL COMPLETE 1 CWA75C2189 0 33 ...

Page 68: ...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 68 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 69: ...3C2121 0 21 TERMINAL COVER 1 CWH171012 22 NUT TERMINAL COVER 1 CWH7080300 23 CONTROL BOARD 1 CWH10K1019 24 CAPACITOR FAN MOTOR 1 F0GAH305A002 0 25 CAPACITOR COMPRESSOR 1 DS371506CPNA DS371456CPNA 0 26 HOLDER CAPACITOR 1 CWH30060 27 TERMINAL BOARD ASS Y 1 CWA28K216 28 ELECTRONIC CONTROLLER 1 CWA743072 30 SENSOR COMPLETE 1 CWA50C618 31 HOLDER SENSOR 1 CWH32089 32 CABINET FRONT PLATE 1 CWE06K034B 33 ...

Page 70: ... 3 4 5 ZH5 VERTICAL IC05 A52A20030R R08 R028 43 2W 43 2W RY PWR R06 24k ELECTRONIC CONTROL UNIT RY HOT VLT RED BLU BLU BRW or YLW FAN MOTOR ORG WHT WHT COMPRESSOR CAPACITOR Fig 3 Fig 4 RED GRY BLK BLU BLK BLU RED RY HOT 1 2 3 4 RY DEICE YLW COIL 4 WAYS VALVE ELECTRONIC CONTROLLER COMP VLT TF 1 C13 FUSE T 3 15A L 250V FM2 ORG FM1 BRW ZNR2 ZNR4 ZNR3 RY H L RY OFF CN TH WHT SENSOR PIPE TEMP SENSOR AI...

Page 71: ...02 5 6 8 3 1 RS D6 D1 R B CS SK 4 Vcc GND 2 7 A52BR9020F JX2 R57 20k C05 0 1µ C03 0 01µ 1 6V R17 430 R16 620 R15 620 R14 620 R13 430 R10 10k AIR TEMP SENSOR 15k 3950 20k 3950 PIPE TEMP SENSOR PH CN TH 4 3 2 1 C04 0 1µ R30 20k C08 0 1µ R33 15k C07 1 00µ 16V C28 0 01µ R32 150k 4 096 MHz 47pF X 2 R49 100k C21 2 2µ 50V C12 0 01µ IC04 A52PST600DR R31 1k R56 1k CN MAIN 7 6 5 4 3 2 1 R47 510 C23 0 1µ R08...

Page 72: ...k 4 7k R028 R029 b c e R113 PC006 4 1 2 3 R112 L002 R032 R055 R054 R024 C014 C017 R023 R053 R033 R034 IC001 C016 C015 Q005 R052 R051 R050 R048 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 C1...

Page 73: ...ec Soft Dry OFF 6 min 36 sec ON 10 min 60 sec Soft Dry 10 min operation Deodorizing 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 ...

Page 74: ...19 1 REMOTE CONTROL 74 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 75: ...19 2 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW 75 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 76: ...19 3 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW 76 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 ...

Page 77: ...19 4 PRINT PATTERN OUTDOOR UNIT PRINTED CIRCUIT BOARD 77 CS W18CKP CU W18CKP5 CS W24CKP CU W24CKP5 MAICO Printed in Malaysia ...

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