Mitsubishi PKA-RP35GAL Service Manual Download Page 33

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13. REMOVING the SIGNAL RECEIVING P.C. BOARD

(1) Remove the terminal block cover.
(2) Disconnect the connector <yellow> for the wireless remote

controller.

(3) Remove the front panel.(see the photo 1)
(4) Remove the 2screws and signal receiving p.c. board cover.
(5) Remove the signal receiving p.c. board.

OPERATION PROCEDURE

PHOTOS & ILLUSTRATION

Set screws

Front
panel

Signal receiving p.c. board cover

Front
panel

Signal receiving p.c. board

(Photo 14)

(Photo 15)

OC330--2.qxp 05.5.9 1:29 PM Page 33

Summary of Contents for PKA-RP35GAL

Page 1: ...EM DIAGRAM 14 9 TROUBLE SHOOTING 15 10 DISASSEMBLY PROCEDURE 30 11 PARTS LIST 34 Indoor unit Model names PKA RP35GAL PKA RP50GAL Service Ref PKA RP35GAL PKA RP50GAL Indoor unit No OC330 Remote control...

Page 2: ...P71 100 125 140VHA A PUHZ RP200 250YHA PUHZ RP200 250YHA A PU H P VGAA UK PU H P YGAA UK Service Manual No OC334 OC337 OC338 OC339 OC336 1 1 OUTDOOR UNIT S SERVICE MANUAL Series Outdoor unit PUHZ RP V...

Page 3: ...ow residual oil piping If there is a large amount of residual oil hydraulic oil etc inside the piping and joints deterioration of the lubricant will result Use ESTER ETHER or HAB as the lubricant to c...

Page 4: ...6 Use high tension side pressure of 3 43MPa G or over 2 Charge hose Only for R407C Use pressure performance of 5 10MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R134a or R4...

Page 5: ...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 malfunctio...

Page 6: ...Use high tension 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...

Page 7: ...7 3 PART NAMES AND FUNCTIONS Indoor Unit Air intake Air intake grille Filter Air outlet Guide vane Auto vane...

Page 8: ...rature CLOCK display Displays the current time display Displays the order of timer operation display Displays whether timer is on or off w In case the outdoor unit is cool only type the heating and au...

Page 9: ...t blow Wireless remote controller built in 36 38 41 43 20 13 16 990 39 235 9 1 4 340 13 3 8 16 35 PKA RP50GAL kW A A kW K min CFM Pa mmAq dB mm in mm in mm in mm in kg lbs Service Ref Mode Power suppl...

Page 10: ...ating 0 07 0 73 0 33 3 17 0 40 3 17 kW A A kW K min CFM Pa mmAq kW dB mm in mm in mm in mm in kg lbs Single phase 50Hz 230V Munsell 0 70Y 8 59 0 97 Plate fin coil Line flow direct x 1 0 030 9 10 11 12...

Page 11: ...OXIMATE TERESHOLD 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 bar BAND CENTER FREQUENCIES Hz PKA RP35GAL PKA RP50GAL PKH P35GALH...

Page 12: ...nock out hole for right rear piping Right rear piping hole Unit center 14 14hole Knock out hole for 425 420 170 190 210 230 0 322 0 35 55 80 130 190 230 272 310 0 35 95 150 205 260 320 345 495 20 75 1...

Page 13: ...CN32 CONNECTOR REMOTE SWITCH CN41 CONNECTOR HA TERMINAL A CN51 CONNECTOR CENTRALLY CONTROL SW1 SWITCH MODEL SELECTION wSee Table 1 SW2 SWITCH CAPACITY CODE wSee Table 2 SWE SWITCH EMERGENCY OPERATION...

Page 14: ...thermistor liquid TH2 Distributor with strainer 50 Condenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 S...

Page 15: ...e action according to TROUBLESHOOTING BY INFERIOR PHENOMENA 9 4 The inferior phenomenon is not reoccurring Logged Not logged 1Consider the temporary defects such as the work of protection devices in t...

Page 16: ...nstallation manual If an air conditioner error occurs the indoor unit s sensor emits an intermit tent buzzer sound the operation light flashes and the error code is output It takes 3 seconds at most f...

Page 17: ...flashes 1 Check code Symptom Remark Number of times Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp flashes 1 Check code Number of times Wireless remote contr...

Page 18: ...tdoor unit s protection device is not con nected Reverse or open phase wiring for the outdoor unit s power terminal block L1 L2 L3 Incorrect wiring between indoor and outdoor units incorrect polarity...

Page 19: ...ature with remote controller in test run mode If pipe liquid temperature is exclusively low in cooling mode or high in heating mode refrigerant circuit may have defective 5 Check pipe liquid temperatu...

Page 20: ...n motor is defective Indoor controller board is defective 5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit clogs 8 Bypass circuit of outdoor unit is defectiv...

Page 21: ...door units max 16units The number of connecting remote con troller max 2units When it is not the above mentioned problem of 1 3 4 Diagnose remote controllers a When RC OK is displayed Remote controlle...

Page 22: ...entered into outdoor control wire 1 3 Turn the power off and on again to check If abnormality generates again replace indoor controller board Indoor outdoor unit communication error Signal receiving...

Page 23: ...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 l...

Page 24: ...r wires 4 Defective remote controller Check indoor outdoor unit connecting wire for connection failure 1 Check the connection of remote con troller wires in case of twin triple indoor unit system When...

Page 25: ...s follows When the outdoor unit is something wrong When the indoor fan is something wrong When drain over flow protected operation is detected during self diagnosis Error code P5 2 Emergency operation...

Page 26: ...stance of each heater element by using a tester Heater Only PKH Normal Abnormal 72 800W 240V Open or short Disconnect the connector then measure the resistance using a tester Surrounding temperature 1...

Page 27: ...N41 Connector HA terminal A CN6V Vane motor output MV CN90 Connect to the wireless remote controller board CNB CN31 Drain sensor DS CN51 Centrally control CN29 Condenser evaporator temperature thermis...

Page 28: ...board PKA RP35GAL PKH P35GALH PKA RP50GAL PKH P50GALH CNSK Connect to the indoor controller board CNDK Between 1 1 to 3 3 220 240V AC CN2S Connect to the indoor controller board CN2D Between 1 1 to 3...

Page 29: ...indoor control 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 thermist...

Page 30: ...rew 3caps then remove the set 3screws 4 After removing the lower side of the front panel a little remove it as pulling toward upper 3 REMOVING THE INDOOR CONTROLLER BOARD 1 Remove the terminal block c...

Page 31: ...istor with set to the pipe Electrical parts box Pipe temperature thermistor TH2 Room temperature thermistor TH1 Condenser evaporator temperature thermistor TH5 7 REMOVING THE NOZZLE ASSEMBLE 1 Disconn...

Page 32: ...e photo 7 7 Remove the 2screws and the pipe fixture 8 Remove the 2screws and heat exchanger Photo 12 Heat exchanger Set screw Pipe fixture Set screws Photo 9 9 REMOVING THE FAN MOTOR 1 Remove the term...

Page 33: ...e wireless remote controller 3 Remove the front panel see the photo 1 4 Remove the 2screws and signal receiving p c board cover 5 Remove the signal receiving p c board OPERATION PROCEDURE PHOTOS ILLUS...

Page 34: ...6 7 8 9 10 11 12 13 14 15 16 17 HEAT EXCHANGER HEAT EXCHANGER LINE FLOW FAN LINE FLOW FAN BEARING MOUNT SLEEVE BEARING BEARING SUPPORT FAN GUARD DRAIN PLUG DRAIN HOSE NOZZLE GUIDE VANE GUIDE VANE ARM...

Page 35: ...OR INDOOR CONTROLLER BOARD CONTROLLER COVER CONTROLLER CASE POWER BOARD FUSE ELECTRICAL PARTS COVER HEATER CONTACTOR SENSOR HOLDER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR ROOM TEMPERATURE THERMIST...

Page 36: ...ame Specifications P35 P50 GALH PKH RP35 RP50 GAL PKA Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty Unit Amount Price R01 07Y 808 R01 09Y 658 R01 07Y 623 R01 89Y 651 R01 07Y 096 R01 07Y 0...

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