Mitsubishi Electric Mr.Slim PUHZ-P250YHA Manual Download Page 1

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SERVICE MANUAL

• This manual describes only

service data of the indoor
units.

[Model names]

PEA-RP200GAQ
PEA-RP250GAQ
PEA-RP400GAQ
PEA-RP500GAQ

CONTENTS

1. TYPES OF CONNECTED OUTDOOR UNITS ····2

2. SAFETY PRECAUTION ···································3

3. PART NAMES AND FUNCTIONS····················8

4. SPECIFICATIONS ··········································10

5. DATA ·······························································11

6. OUTLINES AND DIMENSIONS ·····················13

7. WIRING DIAGRAM ·········································16

8. REFRIGERANT SYSTEM DIAGRAM ············18

9. TROUBLESHOOTING ····································19

10. SERVICE DATA (PARTS NAME) ···················30

Indoor unit

Remote controller (option)

SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS

2010

Summary of Contents for Mr.Slim PUHZ-P250YHA

Page 1: ... CONTENTS 1 TYPES OF CONNECTED OUTDOOR UNITS 2 2 SAFETY PRECAUTION 3 3 PART NAMES AND FUNCTIONS 8 4 SPECIFICATIONS 10 5 DATA 11 6 OUTLINES AND DIMENSIONS 13 7 WIRING DIAGRAM 16 8 REFRIGERANT SYSTEM DIAGRAM 18 9 TROUBLESHOOTING 19 10 SERVICE DATA PARTS NAME 30 Indoor unit Remote controller option SPLIT TYPE HEAT PUMP AIR CONDITIONERS 2010 ...

Page 2: ...00GAQ PEA RP500GAQ PUHZ P200YHA PUHZ RP200YHA2 PUHZ P250YHA PUHZ RP250YHA2 PUHZ P200YHA x 2 PUHZ RP200YHA2 x 2 PUHZ P250YHA x 2 PUHZ RP250YHA2 x 2 Standard Model PEA RP200GAQ PEA RP250GAQ PEA RP400GAQ PEA RP500GAQ PEA RP200GAQ TH AF PEA RP250GAQ TH AF PEA RP400GAQ TH AF PEA RP500GAQ TH AF Model name Specification ...

Page 3: ...can cause deterioration of refrigerant oil etc Use the following tools specifically 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 use...

Page 4: ...ends of the pipes should be sealed until immediately before brazing Wrap elbows and T s in plastic bags for storage The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil such as Suniso Water infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure Piping materials must be stored with more care than with the conventional re...

Page 5: ...azing between copper pipes or between a copper pipe and copper coupling 4 If installed refrigerant pipes are not immediately connected to the equipment then braze and seal both ends of them 1 The new refrigerant oil is 10 times more hygroscopic than the conventional oil The probability of a machine failure if water infiltrates is higher than with conventional refrigerant oil 2 A flux generally con...

Page 6: ...pump power is turned off power failure It is also possible to attach a check valve to the actual vacuum pump afterwards 2 Standard degree of vacuum for the vacuum pump Use a pump which reaches 0 5 Torr 500 MICRON or below after 5 minutes of operation In addition be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil If the vacuum pump is not properly maint...

Page 7: ...rigerant No Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 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 R410A 5 Adaptor for reverse flow check Attach on vacuum pump 6 Refrigerant charge base 7 Refr...

Page 8: ...AA 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 button Check button Clear button Airflow Up Down button Louver button ...

Page 9: ...ponding 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 weak 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 di...

Page 10: ...stat Sound level Drain connection Dimensions Weight Mode Fan drive o No Fan motor output Airflow External static pressure Hi Lo Model name Cooling 1 55 3 8 Heating 1 55 3 8 H W D kW A CMM L s Pa mmAq dB A mm mm mm kg lbs PEA RP400GAQ PEA RP500GAQ 3PH 4W 50Hz 380 415V Galvanized steel Cross fin coil Centrifugal direct o2 1 3 120 2 000 150 15 Remote control built in 52 R1 595 1947 764 130 286 Coolin...

Page 11: ...250 Upper High Lower Low SPL dB A 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz 51 55 54 51 49 47 43 33 27 48 50 50 47 46 44 40 29 21 52 56 55 52 50 48 44 34 28 49 51 51 48 47 45 41 30 22 53 55 54 51 50 48 44 40 31 OCTAVE BAND FREQ Hz Model 52 53 51 52 50 46 44 39 30 PEA RP200GAQ PEA RP250GAQ PEA RP500GAQ PEA RP400GAQ ...

Page 12: ...0 0 110 0 120 0 130 0 90 0 Pa Pa Pa External static pressure Air flow CMM 0 50 100 150 200 300 250 110 0 100 0 120 0 130 0 140 0 150 0 160 0 170 0 Pa External static pressure Air flow CMM 0 50 100 150 200 350 300 250 Hi Lo 45 0 50 0 55 0 60 0 65 0 70 0 Hi Lo 0 50 100 150 200 250 300 0 50 100 150 200 250 60 0 65 0 70 0 75 0 80 0 85 0 90 0 External static pressure Air flow Air flow CMM CMM External ...

Page 13: ...ø3 Holes Refrigerant pipe ø9 52 3 8 braze Refrigerant pipe ø25 4 1 braze Accessory 2pcs Pipe cover For dew condensation prevention of local piping and unit connection 1pc Remote controller Return air Left side view Supply air Front view 75 55 129 70 42 124 34 131 530 50 95 250 11 7x130 910 10 130 130 45 45 31 31 1102 200 10 8x130 1040 1300 20 199 100 40 20 462 144 1284 400 155 1000 105 40 1260 40 ...

Page 14: ...eft side view Supply air Return air Front view Return air sensor Accessory Pipe cover 2pcs For dew condensation prevention of local piping and unit connection Remote controller 1pc Refrigerant pipe ø12 7 1 2 braze Refrigerant pipe ø25 4 1 braze 42 144 145 75 55 70 129 124 131 50 530 34 130 95 250 11 10 66 1302 1484 7x130 910 130 45 45 200 20 100 20 199 40 1500 462 66 9X130 1170 10 25 100 100 25 10...

Page 15: ...ct flange Control box Supply air duct flange A Rubber bush Remote controller wiring Rubber bush Power supply wiring Rubber bush Outdoor unit connection wiring A Accessory Pipe cover 4pcs For dew condensation prevention of local piping and unit connection Remote controller 1pc 81 117 156 117 10 20 1840 10 40 60 60 61 60 40 40 1800 1880 50 664 525 22 102 22 5 120 4X120 480 22 5 595 1824 50 764 280 1...

Page 16: ... notice 3 Indoor and outdoor connecting wires are made with polarities make sure matching wiring and terminal 4 Emergency operation If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists emergency operation for cooling or heating can be performed by changing the setting of connector SWE ON on the indoor controller board SWE ON Indoor fan is ru...

Page 17: ...exists emergency operation for cooling or heating can be performed by changing the setting of connector SWE ON on the indoor controller board SWE ON Indoor fan is running high speed 5 Symbols used in wiring diagram above are CONNECTOR TERMINAL HEAVY DOTTED LINE FIELD WIRING THIN DOTTED LINE OPTIONAL PARTS 6 1 SW2 shows PEA RP500 setting 2places In case of PEA RP400 setting is shown as below 1 2 4 ...

Page 18: ...d TH2 Distributor Condenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer Strainer Heat exchanger Refrigerant GAS pipe connection Brazing Refrigerant LIQUID pipe connection Brazing 8 REFRIGERANT SYSTEM DIAGRAM ...

Page 19: ...ve action according to TROUBLESHOOTING BY INFERIOR PHENOMENA 9 3 The inferior phenomenon is not reoccurring Logged Not logged 1Consider 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 the inferior phenomenon...

Page 20: ...rature 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 temperature with remote controller in test run mode If there is exclusive difference with actual pipe liquid temperature replace indoor controller board Turn the power off and on again to operate after check ...

Page 21: ...s 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 defective Cooling or drying mode 1 Check clogs of the filter 2 Remove shields 4 Measure the resistance of fan motor s winding Measure the output voltage of fan s connector Relay for FAN on the indoor controller board ...

Page 22: ...ndoor 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 controllers have no problem Put 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 is displayed...

Page 23: ... 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 cir cuit board Connect A control service tool PAC SK52ST Refer to EA EC item if LED displays EA EC 1 Check disconnection or looseness of indoor outdoor unit co...

Page 24: ...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 add...

Page 25: ...ontroller wires again and if LED2 is blinking remote controller is defective if LED2 is lit connection failure of remote controller terminal block etc has returned to normal 9 4 WHEN WIRED REMOTE CONTROLLER OR INDOOR UNIT MICRO COMPUTER TROUBLES 1 If there is not any other wrong when trouble occurs emergency operation starts as the indoor controller board switch SWE is set to ON During the emergen...

Page 26: ...0GAQ Red White White Blue Red Blue Red White White Blue Red Blue Red White White Blue Red Blue Red White White Blue Red Blue Abnormal Open or short Hi Lo 34 2Ω PEA RP 400GAQ 25 2Ω PEA RP 500GAQ Measure the resistance value across the terminals with a multimeter Winding temperature 20 C LO LO HI HI U2 U1 V1 V1 W1 W2 LO HI Black marking Black marking Black marking Yellow Blue Red Red Blue Yellow Whi...

Page 27: ...6 TEST POINT DIAGRAM 9 6 1 Power board 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 3 12 6 13 7V DC Pin1 1 ...

Page 28: ... Centrally control CN6V Vane motor output MV CN90 Connect to the wireless 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 Connecto...

Page 29: ... these models have the cond eva temperature thermistor TH5 Marks in the table below Jumper wire Short Open Without TH5 With TH5 Model JP1 Factory shipment Service parts Indoor controller board type JP3 PEA RP200 250 PEA RP400 500 1 OFF ON 5 4 3 2 1 OFF ON 5 4 3 2 1 OFF ON 5 4 3 2 9 7 FUNCTIONS OF DIP SWITCH AND JUMPER WIRE Each function is controlled by the dip switch and the jumper wire on contro...

Page 30: ...ain pan Drain pipe connection R1 Fan motor Sirocco fan Suspension bracket Special washer Liquid pipe thermistor TH2 2 phase pipe thermistor TH5 Strainer Strainer Heat exchanger Liquid pipe Gas pipe Inlet thermistor TH1 Drain pan PEA RP200 250GAQ ...

Page 31: ...n Liquid pipe thermistor TH2 1 Liquid pipe thermistor TH2 2 Strainer No 2 Strainer Strainer No 1 Strainer 2 phase pipe thermistor TH5 1 Heat exchanger No 1 Liquid pipe No 1 Gas pipe No 2 Liquid pipe 2 phase pipe thermistor TH5 2 No 2 Gas pipe No 2 Inlet thermistor TH1 2 No 1 Inlet thermistor TH1 1 PEA RP400 500GAQ ...

Page 32: ...32 PEA RP200 250GAQ ...

Page 33: ...33 PEA RP400 500GAQ ...

Page 34: ......

Page 35: ......

Page 36: ...New publication effective Dec 2010 Specifications subject to change without notice HWE10070 Printed in Japan ...

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