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Panasonic CS-RE18PKR Service Manual

Other manuals for CS-RE18PKR: Operating Instructions Manual

Summary of CS-RE18PKR

  • Page 1

    © panasonic corporation 2013 order no: papamy1308065ce indoor unit outdoor unit cs-re18pkr cs-re24pkr cs-re28pkr cu-re18pkr cu-re24pkr cu-re28pkr destination oceania warning this service information is designed for experienced repair technicians only and is not designed for use by the general public...

  • Page 2: Table of Contents

    2 table of contents page page 1. Safety precautions .............................................3 2. Specifications .....................................................5 3. Features.............................................................11 4. Location of controls and components..........12 4....

  • Page 3: 1. Safety Precautions

    3 caution warning warning 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. ...

  • Page 4

    4 caution warning 20. During pump down operation, stop the compressor before remove the refrigerant piping. (removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion,...

  • Page 5: 2. Specifications

    5 2. Specifications indoor cs-re18pkr model outdoor cu-re18pkr performance test condition as phase, hz single, 50 power supply v 230 240 min. Mid. Max. Kw 0.90 5.00 5.80 btu/h 3070 17100 19800 capacity kcal/h 770 4300 4990 running current a 6.0 5.8 input power w 230 1.30k 2.05k w/w 3.91 3.85 / 2.5 2...

  • Page 6

    6 indoor cs-re18pkr model outdoor cu-re18pkr type cross-flow fan material asg30k1 motor type transistor motor (8-poles) input power w 94.8 output power w 40 cool rpm 870 qlo heat rpm 850 cool rpm 950 lo heat rpm 970 cool rpm 1140 me heat rpm 1170 cool rpm 1340 hi heat rpm 1370 cool rpm 1460 indoor f...

  • Page 7

    7 indoor cs-re18pkr model outdoor cu-re18pkr pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) standard length m (ft) 5.0 (16.4) length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) i/d & o/d height different m (ft) 15 (49.2) additional gas amount g/m (oz/ft) 20 (0.2) piping length for ...

  • Page 8

    8 indoor cs-re24pkr cs-re28pkr model outdoor cu-re24pkr cu-re28pkr performance test condition as as phase, hz single, 50 single, 50 power supply v 230 240 230 240 min. Mid. Max. Min. Mid. Max. Kw 1.70 7.00 7.70 2.30 8.00 8.40 btu/h 5800 23900 26300 7840 27300 28600 capacity kcal/h 1460 6020 6620 198...

  • Page 9

    9 indoor cs-re24pkr cs-re28pkr model outdoor cu-re24pkr cu-re28pkr type cross-flow fan cross-flow fan material asg30k1 asg30k1 motor type transistor motor (8-poles) transistor motor (8-poles) input power w 94.8 94.8 output power w 40 40 cool rpm 890 970 qlo heat rpm 960 1000 cool rpm 990 1070 lo hea...

  • Page 10

    10 indoor cs-re24pkr cs-re28pkr model outdoor cu-re24pkr cu-re28pkr pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 15.88 (5/8) 6.35 (1/4) / 15.88 (5/8) standard length m (ft) 5.0 (16.4) 5.0 (16.4) length range (min – max) m (ft) 3 (9.8) ~ 30 (98.4) 3 (9.8) ~ 30 (98.4) i/d & o/d height different...

  • Page 11: 3. Features

    11 3. Features  super alleru-buster filter  inverter technology o wider output range o energy saving o quick cooling o more precise temperature control  environment protection o non-ozone depletion substances refrigerant (r410a)  long installation piping o long piping up to 20 meter (2.0hp), 30 ...

  • Page 12

    12 4. Location of controls and components 4.1 indoor unit 4.2 outdoor unit 4.3 remote control.

  • Page 13: 5. Dimensions

    13 5. Dimensions 5.1 indoor unit & remote control.

  • Page 14

    14 5.2 outdoor unit 5.2.1 cu-re18pkr cu-re24pkr.

  • Page 15

    15 5.2.2 cu-re28pkr.

  • Page 16

    16 6. Refrigeration cycle diagram 6.1 cs-re18pkr cu-re18pkr.

  • Page 17

    17 6.2 cs-re24pkr cu-re24pkr cs-re28pkr cu-re28pkr.

  • Page 18: 7. Block Diagram

    18 7. Block diagram 7.1 cs-re18pkr cu-re18pkr.

  • Page 19

    19 7.2 cs-re24pkr cu-re24pkr.

  • Page 20

    20 7.3 cs-re28pkr cu-re28pkr.

  • Page 21

    21 8. Wiring connection diagram 8.1 indoor unit 8.1.1 cs-re18pkr cs-re24pkr.

  • Page 22

    22 8.1.2 cs-re28pkr.

  • Page 23

    23 8.2 outdoor unit 8.2.1 cu-re18pkr compressor winding resistance outdoor fan motor winding model cu-re18pkr model cu-re18pkr connection 5rd132xfa21 connection cwa951620 u - v 1.152 Ω yellow - blue 115.8 Ω u - w 1.152 Ω yellow - orange 71.71 Ω v - w 1.152 Ω yellow - red 116.2 Ω winding resistance a...

  • Page 24

    24 8.2.2 cu-re24pkr compressor winding resistance model cu-re24pkr connection 5kd240xaf21 u - v 0.720 Ω u - w 0.726 Ω v - w 0.708 Ω winding resistance at 20°c..

  • Page 25

    25 8.2.3 cu-re28pkr compressor winding resistance model cu-re28pkr connection 5kd240xaf21 u - v 0.720 Ω u - w 0.726 Ω v - w 0.708 Ω winding resistance at 20°c..

  • Page 26

    26 9. Electronic circuit diagram 9.1 indoor unit 9.1.1 cs-re18pkr cs- re24pkr.

  • Page 27

    27 9.1.2 cs-re28pkr.

  • Page 28

    28 9.2 outdoor unit 9.2.1 cu-re18pkr.

  • Page 29

    29 9.2.2 cu-re24pkr.

  • Page 30

    30 9.2.3 cu-re28pkr.

  • Page 31: 10.  Printed Circuit Board

    31 10. Printed circuit board 10.1 indoor unit 10.1.1 main printed circuit board 10.1.2 indicator printed circuit board.

  • Page 32

    32 10.2 outdoor unit 10.2.1 main printed circuit board 10.2.1.1 cu-re18pkr cu-re24pkr.

  • Page 33

    33 10.2.1.2 cu-re28pkr.

  • Page 34: 11. Installation

    34 11. Installation instruction 11.1 cs-re18pkr cu-re18pkr cs-re24pkr cu-re24pkr 11.1.1 select the best location 11.1.1.1 indoor unit  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 n...

  • Page 35

    35 11.1.2 indoor unit 11.1.2.1 how to fix installation plate the mounting wall shall be strong and solid enough to prevent it from the vibration. Dimension model 1 2 3 4 5 6 re18***, re24*** 590 mm 82 mm 539 mm 532 mm 169 mm 219 mm the centre of installation plate should be at more than 1 at right a...

  • Page 36

    36 11.1.2.3 indoor unit installation 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping (this can be used for left rear piping and bottom piping also.).

  • Page 37

    37 11.1.2.4 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 4 × 1.5 mm 2 flexible cord, type designation 245 iec 57 or...

  • Page 38

    38 11.1.2.5 wire stripping and connecting requirement 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....

  • Page 39

    39 11.1.3.3 evacuation of the equipment when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. 1 connect a charging hose with a push pin to the low side of a charging set and the service port of the 3-way valve. O be sure to conne...

  • Page 40

    40 11.1.3.4 connect the cable to the outdoor unit 1 remove the control board cover from the unit by loosening the screw. 2 cable connection to the power supply through isolating devices (disconnecting means). O connect approved type polychloroprene sheathed power supply cord 3 × 2.5 mm 2 (2.0 ~ 2.5h...

  • Page 41

    41 11.2 cs-re28pkr cu-re28pkr 11.2.1 select the best location 11.2.1.1 indoor unit  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. ...

  • Page 42

    42 11.2.2 indoor unit 11.2.2.1 how to fix installation plate the mounting wall shall be strong and solid enough to prevent it from the vibration. Dimension model 1 2 3 4 5 6 re28*** 590 mm 82 mm 539 mm 532 mm 169 mm 219 mm the center of installation plate should be at more than 1 at right and left o...

  • Page 43

    43 11.2.2.3 indoor unit installation 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping (this can be used for left rear piping and bottom piping also.).

  • Page 44

    44 11.2.2.4 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 4 x 1.5 mm 2 flexible cord, type designation 245 iec 57 or...

  • Page 45

    45 11.2.2.5 wire stripping and connecting requirement 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....

  • Page 46

    46 11.2.3.2 connect the piping connecting the piping to indoor please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (in case of using long piping) connect the piping  align the center of piping and sufficiently tighten the flare nut with finge...

  • Page 47

    47 11.2.3.3 evacuation of the equipment when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. 1 connect a charging hose with a push pin to the low side of a charging set and the service port of the 3-way valve. O be sure to conne...

  • Page 48

    48 11.2.3.4 connect the cable to the outdoor unit 1 remove the control board cover from the unit by loosening the screw. 2 cable connection to the power supply through isolating devices (disconnecting means). O connect approved type polychloroprene sheathed power supply cord 3 × 4.0 mm 2 (3.0hp) typ...

  • Page 49

    49 11.2.3.5 piping insulation 1 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. 2 if drain hose or connecting piping is in the room (where dew may form...

  • Page 50: 12.  Operation and Control

    50 12. Operation and control 12.1 basic function inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer mai...

  • Page 51

    51 12.1.5 automatic operation  this mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  during operation mode judgment, indoor fan motor (with speed of lo-) is running for 30 seco...

  • Page 52

    52 ii. Auto fan speed [cooling, dry]  according to room temperature and setting temperature, indoor fan speed is determined automatically.  the indoor fan will operate according to pattern below. [heating]  according to indoor pipe temperature, automatic heating fan speed is determined as follows...

  • Page 53

    53 12.4.1 vertical airflow vane angle (°) operation mode airflow direction 1 2 3 4 5 a 20 b 45 auto with heat exchanger temperature c 32 heating manual 20 32 45 57 68 auto 20 ~ 45 cooling manual 20 26 32 37 45 auto 20 ~ 45 soft dry manual 20 26 32 37 45 1 automatic vertical airflow direction can be ...

  • Page 54

    54 2 manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as figure 2 above. Pattern 1 2 3 4 5 airflow direction patterns at remote control vane angle (°) 90 68 78 102 112 12.5 quiet operation (cooling mode/...

  • Page 55

    55 c. Control contents a. Fan speed manual 1 fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of hi, me, lo for 3db. 2 fan speed for quiet operation is reduced from setting fan speed. B. Fan speed auto 1 indoor fm rpm depends on pipe temp sen...

  • Page 56

    56 12.10 auto restart control 1 when the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes. 2 th...

  • Page 57

    57 example of wiring: note: the wire length from indoor unit to the external interface must be within 1.9 meters. The wire must be double insulation type and a ferrite core to be added to reduce noise. Proposed core spec is j0ke00000147 with heat shrinkage tube. The signal between indoor unit and th...

  • Page 58: 13. Protection

    58 13. Protection control 13.1 protection control for all operations 13.1.1 restart control (time delay safety control)  the compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing off/on button at remote control within this per...

  • Page 59

    59 13.1.4 compressor overheating prevention control  instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  if compressor discharge temperature exceeds 103°c, compressor will be stopped, occurs 4 times per 20 min...

  • Page 60

    60 13.2 protection control for cooling & soft dry operation 13.2.1 outdoor air temperature control  the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  this control will begin 1 minute after the compressor starts.  compresso...

  • Page 61

    61 13.2.6 odor cut control  to reduce the odor released from the unit. O start condition auto fan speed is selected during cool or dry operation. During freeze prevention control and timer preliminary operation, this control is not applicable. O control content depends on compressor conditions: 1. ...

  • Page 62

    62 13.3.7 demand control  when the air-conditioner connected to demand response enabling devices (dred), the power consumption especially during peak hours could be controlled.  three demand response modes (drm) are available o drm1 = compressor cut off o drm2 = operate at 50% of rated input power...

  • Page 63: 14. Servicing

    63 14. Servicing mode 14.1 auto off/on button 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. 2 test run operation...

  • Page 64

    64 4 remote control receiving sound off/on mode the remote control receiving sound off/on mode will be activated if the auto off/on button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the remote control receiving sound off/on mode is in sta...

  • Page 65

    65 14.2 remote control button 14.2.1 set button  to limit set temperature range for cool/dry and heat mode. O set temperature range selection 14.2.2 clock button  to change the remote control’s time format o press for more than 5 seconds. 14.2.3 reset (rc)  to clear and restore the remote control...

  • Page 66

    66 14.2.4 reset (ac)  to restore the unit’s setting to factory default o press once to restore the unit’s setting. 14.2.5 timer ▲  to change indoor unit indicator’s led intensity o press continuously for 5 seconds. 14.2.6 timer ▼  to change remote control display from degree celsius to degree fah...

  • Page 67: 15. Troubleshooting

    67 15. Troubleshooting guide 15.1 refrigeration cycle system in order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a f...

  • Page 68

    68 15.2 relationship between the condition of the air conditioner and pressure and electric current cooling mode heating mode condition of the air conditioner low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refrig...

  • Page 69

    69 15.3 breakdown self diagnosis function 15.3.1 self diagnosis function (three digits alphanumeric code)  once abnormality has occurred during operation, the unit will stop its operation, and timer leds blink.  although timer led goes off when power supply is turned off, if the unit is operated u...

  • Page 70

    70 15.4 error codes table diagnosis display abnormality / protection control abnormality judgment protection operation problem check location h00 no memory of failure — normal operation — — h11 indoor/outdoor abnormal communication after operation for 1 minute indoor fan only operation can start by ...

  • Page 71

    71 h59 eco patrol sensor abnormality continuous for 70s — eco patrol sensor open or short circuit  eco patrol sensor  eco patrol and indoor pcb h64 outdoor high pressure sensor abnormality continuous for 1 minutes — high pressure sensor open circuit during compressor stop  high pressure sensor  ...

  • Page 72

    72 15.5 self-diagnosis method 15.5.1 h11 (indoor/outdoor abnormal communication) malfunction decision conditions  during startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction caused  faulty ...

  • Page 73

    73 15.5.2 h12 (indoor/outdoor capacity rank mismatched) malfunction decision conditions  during startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction caused  wrong models interconnected.  wrong indoor unit or outdoor unit pcbs mounted.  indo...

  • Page 74

    74 15.5.3 h14 (indoor intake air temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector con...

  • Page 75

    75 15.5.4 h15 (compressor temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector connectio...

  • Page 76

    76 15.5.5 h16 (outdoor current transformer) malfunction decision conditions  an input current, detected by current transformer ct, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction caused  lack of gas.  broken ct (current transformer)....

  • Page 77

    77 15.5.6 h19 (indoor fan motor – dc motor mechanism locked) malfunction decision conditions  the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or malfunction caused  operation stops due to short circuit in...

  • Page 78

    78 15.5.7 h23 (indoor pipe temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector conne...

  • Page 79

    79 15.5.8 h25 (e-ion air purifying system abnormal) malfunction decision conditions  during standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation. Malfunction caused  faulty indoor main pcb.  faulty indoor e-ion power module. Troubleshooting.

  • Page 80

    80 15.5.9 h27 (outdoor air temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector connection.  f...

  • Page 81

    81 15.5.10 h28 (outdoor pipe temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector connection. ...

  • Page 82

    82 15.5.11 h30 (compressor discharge temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction caused  faulty conn...

  • Page 83

    83 15.5.12 h32 (outdoor heat exchanger temperature sensor 2 abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused  faulty ...

  • Page 84

    84 15.5.13 h33 (unspecified voltage between indoor and outdoor) malfunction decision conditions  the supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction caused  wrong models interconnected.  wrong indoor unit and outdoor unit pcbs used.  indoor unit or ou...

  • Page 85

    85 15.5.14 h34 (outdoor heat sink temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector co...

  • Page 86

    86 15.5.15 h36 (outdoor gas pipe sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction caused  faulty connector connection.  fa...

  • Page 87

    87 15.5.16 h37 (outdoor liquid pipe temperature sensor abnormality) malfunction decision conditions  during startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction caused  faulty connecto...

  • Page 88

    88 15.5.17 h58 (patrol sensor abnormality) malfunction decision conditions  if patrol sensor feedback is 0v or 5v continuous for 6 hours.  error will display only when the patrol operation is on. Malfunction caused  faulty connector connection.  faulty patrol sensor. Troubleshooting.

  • Page 89

    89 15.5.18 h97 (outdoor fan motor – dc motor mechanism locked) malfunction decision conditions  the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor. Malfunction caused  operation stops due to short circuit inside the fan motor winding.  op...

  • Page 90

    90 15.5.19 h98 (error code stored in memory and no alarm is triggered / no timer led flashing) malfunction decision conditions  indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation.  phenomena: unit is stoppi...

  • Page 91

    91 15.5.20 h99 (indoor freeze prevention protection: cooling or soft dry) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions  freeze prevention control takes place (when indoor pipe temperature is lower than 2°c). Malfunction caused  air short c...

  • Page 92

    92 15.5.21 f11 (4-way valve switching failure) malfunction decision conditions  when indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction caused  indoor heat...

  • Page 93

    93 15.5.22 f17 (indoor standby units freezing abnormality) malfunction decision conditions  when the different between indoor intake air temperature and indoor pipe temperature is above 10°c or indoor pipe temperature is below -1.0°c. Remark: when the indoor standby unit is freezing, the outdoor un...

  • Page 94

    94 15.5.23 f90 (power factor correction protection) malfunction decision conditions  to maintain dc voltage level supply to power transistor.  to detect high dc voltage level after rectification. Malfunction caused  during startup and operation of cooling and heating, when power factor correction...

  • Page 95

    95 15.5.24 f91 (refrigeration cycle abnormality) malfunction decision conditions  the input current is low while the compressor is running at higher than the setting frequency. Malfunction caused  lack of gas.  3-way valve close. Troubleshooting.

  • Page 96

    96 15.5.25 f93 (compressor rotation failure) malfunction decision conditions  a compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction caused  compressor terminal disconnect.  faulty outdoor pcb.  faulty compressor...

  • Page 97

    97 15.5.26 f95 (outdoor high pressure protection: cooling or soft dry) malfunction decision conditions  during operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction caused  outdoor heat exchan...

  • Page 98

    98 15.5.27 f96 (ipm overheating) malfunction decision conditions  during operating of cooling and heating, when ipm temperature data (100°c) is detected by the ipm temperature sensor. Multi models only o compressor overheating: during operation of cooling and heating, when the compressor ol is acti...

  • Page 99

    99 15.5.28 f97 (compressor overheating) malfunction decision conditions  during operation of cooling and heating, when compressor tank temperature data (112°c) is detected by the compressor tank temperature sensor. Malfunction caused  faulty compressor tank temperature sensor.  2/3 way valve clos...

  • Page 100

    100 15.5.29 f98 (input over current detection) malfunction decision conditions  during operation of cooling and heating, when an input over-current (x value in total running current control) is detected by checking the input current value being detected by current transformer (ct) with the compress...

  • Page 101

    101 15.5.30 f99 (dc peak detection) malfunction decision conditions  during startup and operation of cooling and heating, when inverter dc peak data is received by the outdoor internal dc peak sensing circuitry. Malfunction caused  dc current peak due to compressor failure.  dc current peak due t...

  • Page 102

    102 warning 16. Disassembly and assembly instructions high voltage are 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...

  • Page 103

    103 16.1.3 to remove main electronic controller figure 3 figure 4 figure 5.

  • Page 104

    104 16.1.4 to remove discharge grille figure 6 16.1.5 to remove control board figure 7 16.1.6 to remove cross flow fan and indoor fan motor figure 8.

  • Page 105

    105 figure 9 figure 10 figure 11.

  • Page 106

    106 16.2 outdoor electronic controller removal procedure 1 remove the 4 screws of the top panel. Fig. 1 2 remove the 10 screws of the front panel. Fig. 2 3 remove the top cover of the electronic controller. Fig. 3 4 remove the control board. Fig. 4 5 remove the 8 screws of the electronic controller....

  • Page 107: 17. Technical

    107 17. Technical data 17.1 operation characteristics 17.1.1 cs-re18pkr cu-re18pkr cooling characteristic condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed piping length: 5 m compressor freq: f c.

  • Page 108

    108 piping length characteristic cooling condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed outdoor temperature: 35°c (dbt) compressor freq: f c.

  • Page 109

    109 heating characteristic condition room temperature: 20°c (dbt) operation condition: high fan speed piping length: 5 m compressor freq: f h.

  • Page 110

    110 piping length characteristic heating condition room temperature: 20°c (dbt) operation condition: high fan speed outdoor temperature: 7.0°c (dbt), 6.0°c (wbt) compressor freq: f h.

  • Page 111

    111 17.1.2 cs-re24pkr cu-re24pkr cooling characteristic condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed piping length: 5 m compressor freq: f c.

  • Page 112

    112 piping length characteristic cooling condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed outdoor temperature: 35°c (dbt) compressor freq: f c.

  • Page 113

    113 heating characteristic condition room temperature: 20°c (dbt) operation condition: high fan speed piping length: 5 m compressor freq: f h.

  • Page 114

    114 piping length characteristic heating condition room temperature: 20°c (dbt) operation condition: high fan speed outdoor temperature: 7.0°c (dbt), 6.0°c (wbt) compressor freq: f h.

  • Page 115

    115 17.1.3 cs-re28pkr cu-re28pkr cooling characteristic condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed piping length: 5 m compressor freq: f c.

  • Page 116

    116 piping length characteristic cooling condition room temperature: 27°c (dbt), 19°c (wbt) operation condition: high fan speed outdoor temperature: 35°c (dbt) compressor freq: f c.

  • Page 117

    117 heating characteristic condition room temperature: 20°c (dbt) operation condition: high fan speed piping length: 5 m compressor freq: f h.

  • Page 118

    118 piping length characteristic heating condition room temperature: 20°c (dbt) operation condition: high fan speed outdoor temperature: 7.0°c (dbt), 6.0°c (wbt) compressor freq: f h.

  • Page 119

    119 17.2 sensible capacity chart indoor outdoor temperature (°c db) cu-re18pkr ewb edb 20 25 30 32 %rh °c °c tc shc pi tc shc pi tc shc pi tc shc pi 51.8 14 20 4.99 3.97 1.00 4.83 3.84 1.10 4.66 3.79 1.19 4.59 3.76 1.23 54.1 16 22 5.29 3.91 1.01 5.06 3.78 1.10 4.86 3.74 1.20 4.78 3.73 1.24 50.0 17 2...

  • Page 120

    120 indoor outdoor temperature (°c db) cu-re28pkr ewb edb 20 25 30 32 %rh °c °c tc shc pi tc shc pi tc shc pi tc shc pi 51.8 14 20 7.54 5.72 1.85 7.45 5.53 2.02 7.35 5.45 2.19 7.30 5.42 2.26 54.1 16 22 7.99 5.63 1.86 7.79 5.44 2.03 7.67 5.39 2.20 7.60 5.37 2.27 50.0 17 24 8.26 5.70 1.87 8.06 5.52 2....

  • Page 121

    121 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..

  • Page 122

    122 safety ref no. Part name & description qty. Cs-re18pkr cs-re24pkr cs-re28pkr remark 1 chassy complete 1 cwd50c1623 ← ← 2 fan motor 1 arw7627ac ← ← o 3 cross flow fan complete 1 cwh02c1077 ← ← 4 bearing ass’y 1 cwh64k1006 ← ← 5 screw - cross flow fan 1 cwh551146 ← ← 7 evaporator 1 cwb30c3108 cwb3...

  • Page 123

    123 18.2 outdoor unit 18.2.1 cu-re18pkr note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..

  • Page 124

    124 safety ref. No. Part name & description qty. Cu-re18pkr remark 1 base pan ass’y 1 cwd52k1191 2 anti - vibration bushing 3 cwh50077 4 compressor 1 5rd132xfa21 o 5 nut - compressor mount 3 cwh56000j 9 fan motor bracket 1 cwd541126 10 fan motor 1 cwa951620 o 11 screw - fan motor bracket 3 cwh551217...

  • Page 125

    125 safety ref. No. Part name & description qty. Cu-re18pkr remark 68 shock absorber (left) 1 cwg712880 69 c. C. Case 1 cwg565546 (note)  all parts are supplied from papamy, malaysia (vendor code: 00029488).  “o” marked parts are recommended to be kept in stock..

  • Page 126

    126 18.2.2 cu-re24pkr note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..

  • Page 127

    127 safety ref. No. Part name & description qty. Cu-re24pkr remark 1 base pan ass’y 1 cwd52k1190 2 anti - vibration bushing 3 cwh50055 3 packing 3 cwb81043 4 compressor 1 5kd240xaf21 o 5 nut - compressor mount 3 cwh561049 9 fan motor bracket 1 cwd541127 10 fan motor 1 ehds80c60ac o 11 screw - fan mo...

  • Page 128

    128 safety ref. No. Part name & description qty. Cu-re24pkr remark 68 shock absorber (left) 1 cwg712880 69 c. C. Case 1 cwg565546 (note)  all parts are supplied from papamy, malaysia (vendor code: 00029488).  “o” marked parts are recommended to be kept in stock..

  • Page 129

    129 18.2.3 cu-re28pkr.

  • Page 130

    130

  • Page 131

    131 note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..

  • Page 132

    132 safety ref. No. Part name & description qty. Cu-re28pkr remark 1 base pan ass’y 1 cwd52k1295 2 compressor 1 5kd240xaf21 o 3 anti - vibration bushing 3 cwh50055 4 nut - compressor mount 3 cwh561049 5 packing 3 cwb811017 6 crankcase heater 1 cwa341080 o 7 condenser complete 1 cwb32c3300 8 sound pr...

  • Page 133

    133 safety ref. No. Part name & description qty. Cu-re28pkr remark 65 terminal board assy 1 cwa28k1281 o 66 receiver 1 cwb14017 70 bag 1 cwg861239 71 base board - complete 1 cwg62c1086 72 shock absorber (right) 2 cwg712852 73 shock absorber (left) 1 cwg712854 74 c. C. Case 1 cwg567822 (note)  all p...