Mitsubishi Electric Mr.SLIM PCA-RP125HA Service Manual Download Page 24 | Manualshive

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10-6-2. Indoor controller board

PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

FAN
Fan motor output

CNP
Drain-pump output
(DP)
(220~240V AC)

CNC
Dew prevention
heater (H2)
(220~240V AC)

CNDK
Connect to the indoor
power board (CNSK)
(220~240V AC)

FUSE
(6.3A 250V)

CND
Power
supply input
(220~240V AC)

SWE
Emergency operation

SW2
Capacity setting

SW1
Model setting

CN2L
Connector
(LOSSNAY)

CN51
Centrally control

CN6V
Vane motor output
(MV)

CN90
Connect to the wire-
less remote controller
board (CNB)

CN31
Drain sensor (DS)

CN29
Condenser/evaporator
temperature thermistor
(TH5)

CN21
Pipe temperature
thermistor/Liquid
(TH2)

CN20
Room temperature
thermistor (TH1)

CN22
Remote controller
connecting wire
(10.4~14.6V DC)

LED3
Transmission
(Indoor/outdoor)

LED2
Power supply
(R.B)

LED1
Power supply
(I.B)

CN2D
Connector to the indoor
power board (CN2S)
(12.5~13.7V DC)

CN3C
Transmission
(Indoor/outdoor)
(0~24V DC)

}

}

+

+

–

CN41
Connector
(HA terminal-A)

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Summary of Contents for Mr.SLIM PCA-RP125HA

Page 1: ...3 9 REFRIGERANT SYSTEM DIAGRAM 14 10 TROUBLESHOOTING 15 11 SPECIAL FUNCTION 26 12 DISASSEMBLY PROCEDURE 29 13 PARTS LIST 33 14 RoHS PARTS LIST 36 ON OFF TEMP SPLIT TYPE HEAT PUMP AIR CONDITIONERS SPLIT TYPE AIR CONDITIONERS May 2008 Model name indication Revision PCA RP71 125HA 1 are added in REVISED EDITION B Some descriptions have been modified Note This manual describes only service data of the...

Page 2: ...P100YHA3 OC374 PU H P71 100VHA 1 UK PU H P100 125 140YHA 1 UK OC379 PUHZ P100 125 140VHA2 1 UK OCH415 OCB415 PUHZ RP71 100 125 140VHA2 A PUHZ RP100 125 140YHA2 A OCH422 OCB422 PUHZ BP100 125 140VHA A PUHZ BP200 250YHA A OCH423 OCB423 PUHZ P200 250YHA2 OCH424 OCB424 PUHZ HRP71 100VHA PUHZ HRP100 125YHA OCH425 OCB425 PUHZ RP200 250YHA2 OCH428 OCB428 Series Outdoor unit Manual No PUHZ RP HA A OCS01 P...

Page 3: ... seal the system the composition of the refrigerant in the cylinder will change and performance may drop Do not use a refrigerant other than R407C If another refrigerant R22 etc is used the chlorine in the refrigerant may cause the lubricant deterioration Use a vacuum pump with a reverse flow check valve The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricant deteriora...

Page 4: ... tools for R407C refrigerant 2 Refrigerant recharging 1 Refrigerant recharging process 1Direct charging from the cylinder R407C cylinder are available on the market has a syphon pipe Leave the syphon pipe cylinder standing and recharge it By liquid refrigerant 2 Recharge in refrigerant leakage case After recovering the all refrigerant in the unit proceed to working Do not release the refrigerant i...

Page 5: ...y designed for use with R410A refrigerant The following tools are necessary to use R410A refrigerant Keep the tools with care If dirt dust or moisture enter into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylinder If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered F...

Page 6: ...ension side pressure of 5 3MPa G or over 2 Charge hose Only for R410A Use pressure performance of 5 09MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R134a R407C or R410A 5 Adaptor for reverse flow check Attach on vacuum pump 6 Refrigerant charge base 7 Refrigerant cylinder Only for R410A Top of cylinder Pink Cylinder with syphon 8 Refrigerant recovery equipment Gravimete...

Page 7: ...ated by simply pressing the ON OFF button Operation buttons PAR 21MAA ON OFF FILTER CHECK OPERATION CLEAR TEST TEMP MENU BACK DAY MONITOR SET CLOCK ON OFF Set Temperature buttons Down Up Timer Menu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the door ON OFF button Fan Speed button Filter button Enter button Test Run but...

Page 8: ...onding timer is set Up Down Air Direction indica tor The indicator shows the direc tion of the outcoming airflow One Hour Only indicator Displayed if the airflow is set to low and downward during COOL or DRY mode Operation varies according to model The indicator goes off after one hour at which time the airflow di rection also changes Room Temperature display Shows the room temperature Louver disp...

Page 9: ...0 08 0 08 30 38 1 060 1 350 0 direct blow Remote controller built in 44 50 26 1 1 520 59 7 8 650 25 5 8 280 11 56 124 Cooling 0 09 0 43 0 86 Heating 0 09 0 43 0 86 Single phase 50Hz 230V Stainless steel Plate fin coil Sirocco fan direct x 2 0 04 17 19 600 670 0 direct blow Remote controller built in 34 38 26 1 1 136 44 3 4 650 25 5 8 280 11 41 90 PCA RP71HA PCA RP71HA 1 kW A A kW min CFM Pa mmAq d...

Page 10: ...QUENCIES Hz PCA RP71HA PCA RP71HA 1 NOTCH High Low SPL dB 38 34 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0dB 0 0002 μbar BAND CENTER FREQUENCIES Hz PCA RP125HA PCA RP125HA 1 NOTCH High Low SPL dB 50 44 LINE 1m 1m unit about 1 4m MICROPHONE ceiling ...

Page 11: ...eiling Allowing clearances gas liquid Suspension bolt 130 210 45 165 120 1224 1180 75 1136 986 1098 70 243 254 175 197 110 21 130 15 258 110 102 320 80 90 140 18 75 70 90 650 13 289 75 280 495 43 295 2 2 2 2 0 0 Refrigerant pipe connection gas pipe side flared connection 5 8F Refrigerant pipe connection liquid pipe side flared connection 3 8F Flexible hose accessory Drainage pipe connection 26mm I...

Page 12: ...30 90 650 300 100 1520 100 Electrical box 500 250 2 3 gas liquid Suspension bolt 70 243 254 175 197 110 21 130 15 258 1482 110 102 1370 75 1608 320 80 1564 1520 90 120 140 18 75 70 90 650 13 289 75 280 495 43 295 Refrigerant pipe connection gas pipe side flared connection 5 8F 3 4F Refrigerant pipe connection liquid pipe side flared connection 3 8F Flexible hose accessory Drainage pipe connection ...

Page 13: ...1 6 5 4 3 2 1 MF2 BLU YLW YLW ORN BLK RED WHT WHT YLW BLK WHT YLW BLU BLK WHT YLW ORN BRN C2 GRY RED 6 5 4 3 2 1 D HEATER CNC RED For PCA RP125HA PCA RP125HA 1 X6 X5 X4 X6 X5 X4 ZNR FUSE SWE FAN WHT SW2 SW1 LED3 LED2 LED1 H2 OFF ON 1 2 1 2 1 2 1 2 1 3 1 2 WHT WHT REMOCON CN22 BLU TH1 TH2 TH5 BLU BLU BLK BLK 1 2 2 1 TB5 INTAKE CN20 RED LIQUID CN21 WHT PIPE CN29 BLK R B TB6 TRANSMISSION WIRES DC12V ...

Page 14: ...or with strainer 50 Condenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare REFRIGERANT SYSTEM DIAGRAM 9 ...

Page 15: ...ing and ascertain the cause of the trouble according to TROUBLESHOOTING BY INFERIOR PHENOMENA 10 3 The trouble is not reoccurring Logged Not logged Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise and etc Re check the symptom and check the installation environment refrigerant amount weather when th...

Page 16: ...gain to operate after check Room temperature thermistor TH1 1 The unit is in 3 minute resume prevention mode if short open of thermistor is detected Abnormal if the unit does not reset normally after 3 min utes The unit returns to normal opera tion if it has been reset normally 2 Constantly detected during cooling drying and heating operation Short 90 or more Open 40 or less 1 Defective thermistor...

Page 17: ...nge 4 Defective indoor fan motor Fan motor is defective Indoor controller board is defec tive 5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit clogs 8 Bypass circuit of outdoor unit is defective Cooling or drying mode 1 Check clogs of the filter 2 Remove shields 4 Refer to 10 6 5 Check outdoor fan motor 67 Check operating condition of refrigerant circuit ...

Page 18: ...connecting remote control ler max 2 units When it is not the above mentioned problem of 1 3 4 Diagnose remote controllers a When RC OK is displayed Remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC NG is displayed Replace remote controller c When RC E3 or ERC 00 66 is dis played noise may be causing ...

Page 19: ...Contact failure short circuit or miswiring converse wiring of indoor outdoor unit connecting wire 2 Defective transmitting receiving circuit of indoor controller board 3 Defective transmitting receiving circuit of indoor controller board 4 Noise has entered into indoor outdoor unit connecting wire Check LED display on the outdoor control circuit board Connect A control service tool PAC SK52ST Refe...

Page 20: ...on between indoor controller board and indoor power board Check the fuse on indoor controller board If no problems are found indoor controller board is defective When LED1 on indoor controller board is lit 1 Mis setting of refrigerant address for outdoor unit There is no unit corresponding to refrigerant address 0 1 Reconfirm the setting of refrigerant address for outdoor unit Set the refrigerant ...

Page 21: ...onnector Check Up down vane setting Unit function selection by remote controller 3 Normal operation Each connector on vane motor side is disconnected Phenomena Cause Countermeasure 2 LED2 on indoor controller board is blinking When LED1 on indoor controller board is also blinking Connection failure of indoor outdoor unit connecting wire When LED1 is lit 1 Mis wiring of remote controller wires Unde...

Page 22: ... measure the resistance with a tester At the ambient temperature 10 30 Refer to Thermistor Characteristic graph for a detail Room temperature thermistor TH1 Pipe temperature thermistor TH2 Condenser Evaporator temperature thermistor TH5 Normal 4 3k 9 6k Abnormal Open or short 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Thermistor for lower temperature Temperature Resistance K Thermistor Characteristic...

Page 23: ... 10 6 1 Power board PCA RP71HA PCA RP71HA 1 PCA RP125HA PCA RP125HA 1 CNSK Connect to the indoor controller board CNDK Between 1 to 3 220 240V AC CN2S Connect to the indoor controller board CN2D Between 1 to 3 12 6 13 7V DC Pin1 ...

Page 24: ...ing CN2L Connector LOSSNAY CN51 Centrally control CN6V Vane motor output MV CN90 Connect to the wire less remote controller board CNB CN31 Drain sensor DS CN29 Condenser evaporator temperature thermistor TH5 CN21 Pipe temperature thermistor Liquid TH2 CN20 Room temperature thermistor TH1 CN22 Remote controller connecting wire 10 4 14 6V DC LED3 Transmission Indoor outdoor LED2 Power supply R B LED...

Page 25: ...ntrol PCB J41 J42 are given in the table on the left in the table indicates the jumper line is disco nnected There is no jumper JP1 because these models have the cond eva temperature thermistor TH5 Marks in the table below Jumper wire Short Open Without TH5 With TH5 Model JP1 For product Service parts Indoor controller board type JP3 1 2 3 4 5 ON OFF Service board MODELS PCA RP71HA 1 2 3 4 5 ON OF...

Page 26: ...l of rotation setting w Main and sub unit should be set by refrigerant address Outdoor Dip switch setting Refrigerant address 00 Main unit Refrigerant address 01 Sub unit When error occurrs to one unit another unit will start operation Back up function System constraint This function is available only by the grouping control system INDOOR UNIT OUTDOOR UNIT 1 1 of 2 refrigerant groups Refer to Fig ...

Page 27: ... interval 1day and back up function No 5 314 Rotation ON Alternating interval 3day and back up function No 6 315 Rotation ON Alternating interval 5day and back up function No 7 316 Rotation ON Alternating interval 7day and back up function No 8 317 Rotation ON Alternating interval 14day and back up function No 9 318 Rotation ON Alternating interval 28day and back up function Setting No Request cod...

Page 28: ...ars on the screen when Maintenance monitor is activated The display now allows you to set a request code No 4 Press the TEMP and buttons to select the desired refrigerant address 5 Press the CLOCK and buttons to set the desired request code No 311 318 321 324 6 Press the button to perform function setting If above setting operations are done correctly Request code number will appear in data displa...

Page 29: ...igure 1 2 Loosen the screw for control box cover to remove the control box cover See photo 2 3 Remove the lead wire from the 2 clips 4 Remove the 2 white cord heater relay connectors 1P o 2 and 2 fan motor relay connectors 6P o 2 in the control box 5 Remove the 2 screws for control box to slide the control box downward Electrical parts in the control box Fan motor capacitor Indoor controller board...

Page 30: ...y connectors 6P in the control box See photo 3 4 Remove the 3 filter rails See photo 1 4 5 Remove the fan guard See photo 5 6 Remove the lower casing See photo 6 7 Remove the green earth wire from the motor support See photo 7 8 Remove the 2 screws M5 12 for motor support and remove the left and right motor supports 9 Remove the fan motor together with the sirocco fan 10 Remove the 2 set screws M6...

Page 31: ...pan Note Remove the drain pan carefully since the drain could remain in it 7 Removing the under panel 1 Remove the oil filter See figure 1 2 Remove the 3 filter rails See photo 1 4 3 Remove the 12 screws left 1 right 1 Bottom 10 for under panel and remove the under panel See photo 11 Photo 8 Photo 9 Photo 11 Photo 12 Caution for installation When installing the pipe temperature thermistor slack of...

Page 32: ... the under panel See photo 11 4 Remove the drain pan See photo 12 5 Remove the 2 screws 4 10 for pipe cover and remove the pipe cover See photo 15 6 Remove the 3 screws 4 10 left 2 right 1 for heat exchanger See photo 15 16 7 Remove the 2 screws 4 10 for heat exchanger at the top of the unit and remove the heat exchanger See photo 17 Photo 13 Photo 14 Photo 15 Caution for installation When install...

Page 33: ...L FRONT PANEL VANE ASSY VANE ASSY GUIDE VANE ASSY 6L GUIDE VANE ASSY 6C GUIDE VANE ASSY 6R VANE HOLDER VANE SUPPORT FRONT SUPPORT R01 13N 809 R01 13N 662 T7W E02 676 T7W E03 676 R01 12N 669 R01 13N 669 R01 13N 503 R01 E05 500 R01 13N 667 R01 13N 808 R01 13N 668 R01 13N 661 T7W E02 651 T7W E03 651 R01 12N 002 R01 13N 002 R01 13N 086 R01 13N 087 R01 13N 085 R01 13N 533 2 1 1 1 2 3 1 1 2 1 1 1 2 1 1 ...

Page 34: ...ER FAN PLATE SUPPORT R FAN PLATE SUPPORT C FAN MOTOR FAN MOTOR MOTOR LEG PIECE FOR MOTOR FAN PLATE SUPPORT L PIPE COVER DRAIN HOSE COVER RUBBER MOUNT BG00N756G15 BG00N756G14 BG02T500H04 BG00N893G15 BG00N893G14 BG00N893G13 R01 12N 110 R01 13N 110 R01 12N 114 R01 13N 114 T7W E02 111 T7W E03 111 T7W E12 675 R01 E51 202 T7W E14 675 T7W E13 675 T7W E00 111 T7W E01 111 T7W E11 675 R01 12N 529 R01 13N 52...

Page 35: ...BG00T759G13 1 2 3 4 5 6 7 8 9 10 11 SUPPORT CONTROLLER BOARD FUSE POWER BOARD RUN CAPACITOR RUN CAPACITOR CONTROL BOX COVER CONTROL BOX TERMINAL BLOCK TERMINAL BLOCK REMOTE CONTROLLER R01 18J 054 T7W E41 310 R01 E02 239 R01 E02 313 R01 A00 255 R01 576 255 T7W E23 716 R01 556 246 T7W E08 713 9 1 1 1 1 1 1 1 1 1 I B FUSE P B C1 C1 C2 TB4 TB5 R B 250V 6 3A 2 5 440V 3 440V 3P S1 S2 S3 2P 1 2 PAR 21MAA...

Page 36: ...RT FRONT SUPPORT R01 15N 669 R01 14N 503 R01 14N 500 R01 14N 667 R01 14N 808 R01 14N 668 R01 14N 661 T7W 14N 651 T7W 15N 651 R01 15N 002 R01 16N 002 R01 14N 086 R01 14N 087 R01 14N 085 R01 14N 533 2 1 1 1 2 3 1 1 2 1 1 1 2 1 1 1 1 1 2 1 1 1 3 4 1 1 2 1 1 1 3 1 1 1 2 2 2 BG00K145G02 BG00K146G02 BG00T773G02 RoHS G G G G G G G G G G G G G G G G G G G G G G 1 2 3 4 5 6 13 G R01 14N 809 R01 14N 662 T7W...

Page 37: ...RMISTOR HEAT EXCHANGER HEAT EXCHANGER FAN PLATE SUPPORT R FAN PLATE SUPPORT C FAN MOTOR FAN MOTOR MOTOR LEG PIECE FOR MOTOR FAN PLATE SUPPORT L PIPE COVER DRAIN HOSE COVER RUBBER MOUNT BG00N756G17 BG00N756G16 BG02T500H04 BG00N893G15 BG00N893G14 BG00N893G13 R01 14N 110 R01 15N 110 R01 14N 114 R01 15N 114 T7W 16N 111 T7W 17N 111 T7W 18N 675 R01 15N 202 T7W 15N 675 T7W 16N 675 T7W 14N 111 T7W 15N 111...

Page 38: ...OARD FUSE POWER BOARD RUN CAPACITOR RUN CAPACITOR CONTROL BOX COVER CONTROL BOX TERMINAL BLOCK TERMINAL BLOCK REMOTE CONTROLLER R01 20J 054 T7W E51 310 R01 E06 239 R01 E38 313 R01 14N 255 R01 E12 255 R01 E20 246 R01 E21 246 T7W E11 713 9 1 1 1 1 1 1 1 1 1 I B FUSE P B C1 C1 C2 TB4 TB5 R B 250V 6 3A 2 5 440V 3 440V 3P S1 S2 S3 2P 1 2 PAR 21MAA 9 1 1 1 2 1 1 1 1 1 G G G G G G G G G G G 125HA 1 1 1 2...

Page 39: ...39 ...

Page 40: ...ITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2008 No OC329 REVISED EDITION B PDF 7 Distributed in Jul 2006 No OC329 REVISED EDITION A PDF 8 Distributed in Jun 2005 No OC329 PDF 9 Made in Japan New publication effective May 2008 Specifications subject to change without notice TM ...

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