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SERVICE MANUAL - mitsubishitech.co.uk

1. In case of test run the OFF timer will be activated and the test run will automatically stop after two hours room temperature display section shows the pipe temperature of indoor units during the test run Check that all the indoor units are running properly in case of simultaneous twin and triple operation Malfunctions may not be displayed regardless of incorrect wiring 1 After turning on the power supply the system will go into startup mode PLEASE WAIT will blink on the display section of the room temperature and lamp green of the remote controller will flash As to INDOOR BOARD LED will be lit up LED2 will either be lit up in case the address is 0 or turned off in case the address is not 0 LEDS will blink As to OUTDOOR BOARD LED LED 1 green and LED2 red will light up After the startup mode of the system finishes LED2 red will be turned off In case OUTDOOR BOARD LED is digital display and 0O will be displayed alternately every second If one of the above operations doesn t function correctly the causes written below should be considered Find causes from the symptoms The below symptoms are under test run mode startup in the table means the display status of 1 written above Oe indicate dil sp Remote controller displays PLEASE After startup is displayed only After power is turned on PLEASE WAIT is displayed for 2 WA
2. 322 m 1 3169 1118 z Q IN 5 T 1 L 11214 BLU D U LI R R W N N L N 1 PUH P71 P100VHA MODEL ONLY 9 Q PON x2 MODEL SELECTION 221 20101 J2 SS 83 INDOOR PUH P71VHA 21 14 BM PUH P100VHA PU P71VHA 4 POWER SUPPLY PU P100VHA N O with jumper wire without jumper wire 230V 50Hz lt Notes when servicing gt Some fastening terminals have a lock mechanism When removing the fastening terminal push the projection locking lever on a terminal with your finger and pull it out 16 2 PU P71YHA UK PUH P71YHA UK PU P71YHA UK PUH P71YHA UK PU P100YHA UK PUH P100YHA UK PU P100YHA UK PUH P100YHA UK PU P125YHA UK PUH P125YHA UK PU P125YHA UK PUH P125YHA 1 UK PU P140YHA UK A PUH P140YHA UK PU P140YHA 1 UK PUH P140YHA 1 UK MC COMPRESSOR FUSE1 O B FUSE 6 3A 250V FAN MOTOR INNER THERMOSTAT FUSE2 O B USE 6 3A 250V F THERMISTOR LIQUID TEMP FUSE3 O B FUSE 6 3A 250V DISCHARGE TEMP FUSE 6 3A 250V COND EVA TEMP MC CH RELAY MF CAPACITOR 2154 RELAY 2154 RELAY MF CAPACITOR SV RELAY CRANKCASE HEATER MC CONTACTOR 4 WAY VALVE SOLENOID
3. ow as INDICATOR Pu lamp blink Off On On Off we 20 pattern Self check Approx 2 5 sec 3 sec 0 5 sec 0 5 sec 0 5 sec 0 5 Approx 2 5 sec Approx 3 sec 0 5 0 5 starts Start signal received Number of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e 5 for U2 the check code in the following table Output pattern A Errors detected by indoor unit Wireless remote controller Wired remote controller Wireless remote controller Wired remote controller controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp blinks Check code Number of times 1 Pi X m akesensremor 0 0 0 y O Pee TH2 sensor error 4 p bramsensoreroriatswiehcommedoropan Forced compressor stop J umt referto 6 6 Frreezing Overheating protection operation indigo unit s 8 P8 fPpiptempeatueemo 333 9 E4E5 L dor Je oue oo oo o T n conto Symptom Remark IE pattern B Errors detected by unit other than indoor unit outdoor unit etc unit communication error NN CIO MN error Outdoor unit Beeper EE a S R INDICATOR lamp blinks ul Number of times 03 04 Open shor
4. a 5 eoa rie TEMALBLOCK 288255 3 Ew 285 Fao 1 Es 255 Fav 1 vi s18 0 1 s18 sm 330 B 910340 108 2 241 870 831 706 f DIO EIU 20011 1 1 i B B 1 4 1 E 1 2 T E p E E 1 B E a DIOC 2 79 16 TH6 26 25 24 23 22 715 7117 2 SS PSs re LETEN 9 1 UP gt EN T 7 T WEN 1 DEAD 0 7 Co RT e Wa NN LAN XJ ELENA Lea M 2 hf NS MAY 1807 WII O A 2 1 17 g NEL 0060 60607 2528 FUNCTIONAL PARTS PUH P125YHA UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK IN ALLE 355 SQ lt 01111 S IPN 1 1 NI JE 27 28 80 Q ty set WEM
5. 1 Lx 049 E JO FATWA 4015 10 uoreompur Lx 8 6 25 6 8914 uonoeuuoo edid GINO 2 48 5 88 5 1 uonouuoo edid 9 jaued C 9pIS Ajddns 197 226 SuOonoeuuo 056 exe1u JeaH 10 14 OUTLINES AND DIMENSIONS PU P71VHA UK PUH P71VHA UK lt 011108 5 2 2 lt lt pes ebreuosiq W TISZKX II gt gt II gt gt gt gt gt D OO rr lt 9 9 PUNY ops 5 D I x i lt uonepuno 4 1894 Uomfe e su 009 ui 1 A e00 peseuound E y Ul pue 15 SJausew pue 5108
6. oc 2 4 a z lt LE Ugo lt lt lt uw lt lt amp o 90mx i cc 5 lt IEEE 20 gt lt x x gt o lt lt 2 f LO t 10 IL I lt o gt gt gt gt Ww Ll eg Iro 00 00 000000 gt gt 5 5 5 S 2015 8 FUNCTIONAL PARTS PUH P71VHA YHA UK PUH P100VHA YHA UK PU P71VHA YHA UK PU P100VHA YHA UK 18 17 TH6 17 3 16 15 A LD A wmv et 14 mx Vea Ru qm AN AV 7 xd 7 NU pese 13 iE 4 12 uy m GEN 5 L LU 1 Fo cal BS if 10 1 Y lt Z 5 a a pum N Lal 8 Ld LEN NES 4 SSE 57 pem AA 5 2 12775 CU s ZEA SSS AL EE TS XA SD AR SS SIE a
7. 18 10 REFRIGERANT SYSTEM 23 11 24 12 FUNCTION 2 60 13 DISASSEMBLY PROCEDURE 67 44 PARTS 76 15 RoHS PARTS 116 82 PUH P71VHAq UK PU P71YHAq UK PUH P71YHAq UK TM PU P100VHA UK PUH P100VHA 1 UK PU P100YHAq UK PUH P100YHA 1 UK 1 TECHNICAL CHANGES PU P71VHA UK PU P71YHA UK PU P100VHA UK PU P100YHA UK PU P125YHA UK PU P140YHA UK PUH P71VHA UK PUH P71YHA UK PU P71VHA UK PU P71YHA UK PU P100VHA UK PU P100YHA UK PU P125YHA UK PU P140YHA UK PUH P71VHA UK PUH P71YHA UK PUH P100VHA UK PUH P100YHA UK PUH P125YHA UK PUH P140YHA UK PUH P100VHA UK PUH P100YHA UK PUH P125YHA UK PUH P140YHA UK VV V OUTDOOR CONTROLLER BOARD O B has been changed 2 REFERENCE MANUAL 2 1 INDOOR UNIT S SERVICE MANUAL Model name Service Ref Service Manual No PLA RP35 50 60 71AA PLA RP35 50 60 71AA UK 5 PLA RP35 50 60 71 100 125 40BA UK OCH412 OCB412 PLA RP100 125 140AA2 UK OC357 PLA RP35 50 60 71 100 125 40BA PLA RP100 125 140AA2 PCA RP50 60 71 100 125 140GA PCA RP50GA2 PKA RP35 50GAL PCA RP50 60 71 100 125 140GA PCA RP50GA2 00328 PKA RP35 50GAL PKA RP60 71 100FAL PKA RP50FAL2 00331 PKA RP60 71 100FAL PKA RP50FAL2 PEAD RP50 60 71 125 140EA PEAD RP35 100EA2 PEAD
8. 22222222 870 ex oa rounwavvae 1111111 870 242 Gsm eo nn pn Gsm 00 nn aa 111000 178 870 202 11100 870 exo 206 HIGHPRESSURE SWITCH rant Gsm ew Gsm es 406 11 Eos 76 TEmMALPLOCK PUGSES 3 1 10 7w 17017 716 TERMALBLOCK Pesos 1 1 _ Gsm 255 armo 570 es 255 Jermo 1117 515 ERES m 5 L e 218 FYE 318 1 sm sso 708 0 Bem G sm en 723 570 em 723 E EE FUNCTIONAL PARTS PUH P125YHA UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK TH6 16 26 25 4077 1 5 2 4 GL LL NA 265 Sag N md i
9. PU P Remarks 21211 ded Part Name Specification 125 140 1251140 Drawing Unit arom YHA UK FANMOTOR sme 1111 wow 185 PROPELLERFAN 2 2 2 2 870 orr mwe 22 2 2 _ S70 E60 763 S70 E02 004 S70 E20 236 S70 E76 400 S70 E77 400 COMPRESSOR BN65YEGMT S70 E04 411 BALLVALVE 158 8 570 500 418 3 21 13 870 361 450 STRANER 0 1 4 1 14 141870 42M 467 muFFLER it ft tit o o S 15870 529 ACCUMULATOR 16 870 E44 202 THERMISTOR 141111100000 17 870 E02 413 CHARGE PLUG 22222 18 870 282 403 BYPASSVALVE 104111 19 870 E03 242 SQENODCOLGTMSSWANE 1111 dew 20 570 E90 401 EXPANSIONVALVE 104111 21 870 E91 401 INAREIPMNSONWOECOL 1 4 1 1 o qw sme FOURWAYVALVE sm 00 20 sm 208 nonpas ew Jee ee ES BN52YEGMT 1 M 7 11 870 440 hiha _ Sm Ew 716 TERMINAL BLOCK 1111 870 Ew 716 TERMINAL BLOCK amsiszsm 1111 0 870 Em 255 2 2 2 2 ee o pe
10. the outdoor unit is malfunctioning the unit number will be 00 2 n the case of group control for which one remote controller controls multiple refrigerant systems the refrigerant address and error code of the unit that first experienced trouble i e the unit that transmitted the error code will be displayed 3 To clear the error code press the 7 ON OFF button Alternating Display Error code 2 or 4 digits Address 3 digits or unit number 2 digits When using remote local controller combined operation cancel the error code after turning off remote operation During central control by a MELANS controller cancel the error code by pressing the D ON OFF button 11 3 2 Self Diagnosis During Maintenance or Service Since each unit has a function that stores error codes the latest check code can be recalled even if it is cancelled by the remote controller or power is shut off Check the error code history for each unit using the remote controller Set the unit number or refrigerant address you want to diagnose D Switch to self diagnosis mode D Press the TEMP buttons to select the desired number Pressthe CHECK button twice within 3 seconds The display content or address The number address changes between 01 and 50 or 00 will change as shown below and 15 14141 The refrigerant address will begin to flash Unit number or refrigera
11. Service panel Fan grille fixing Screws ift tii i Grill fixing screws 2 Removing the fan motor MF Photo 1 1 Remove the service panel See figure 1 Erf ERES 2 Remove the top panel See figure 1 Propeller i 3 Remove 5 fan grille fixing screws 5 X 10 to detach the fan grille See figure 1 4 Remove a nut for right handed screw of M6 to detach the propeller See photo 1 5 Disconnect the connector MF3 on controller circuit board in electrical parts box 6 Remove 3 fan motor fixing screws 5 X 16 to detach the fan motor See photo 2 6 Front panel fixing screws Photo 2 P71 Fan motor MF Fan motor fixing screws P100 Fan motor MF Fan motor fixing screws OPERATING PROCEDURE PHOTOS 3 Removing the electrical parts box 1 Remove the service panel See figure 1 Photo 3 pans 2 Remove the top panel See figure 1 3 Disconnect indoor outdoor connecting wire from terminal block 4 Remove all the following connectors from controller circuit board fan motor linear expansion valve thermistor lt Outdoor pipe thermistor lt Discharge gt thermistor lt Outdoor 2 phase pipe crankcase heater high pressure switch four way valve Aun Then remove a screw 4 X 8 from the valve bed to Electrical parts remove the lead wire E box fixing screws Pull out the dis
12. 22 REFRIGERANT SYSTEM DIAGRAM PUH P71VHA UK PUH P71VHA UK PUH P100VHA UK PUH P100VHA UK PU P71VHA UK PU P71VHA UK PU P100VHA UK PU P100VHA UK PUH P71YHA UK PUH P71YHA UK PUH P100YHA UK PUH P100YHA UK PU P71YHA UK PU P71YHA UK PU P100YHA UK PU P100YHA UK Service port High pressure check valve 4 way valve _ protect switch Outdoor heat exchanger 50 Refrigerant GAS pipe 2 E VE Thermistor 15 88mm 5 8 S D TH6 i m Thermi Service ermistor lt J TH3 check ES Distributor Strainer 40 Compressor 100 100 Refrigerant LIQUID pipe Strainer Strainer 9 52 93 8 a Stop Linear expansion valve with service port Refrigerant flow in cooling gt Refrigerant flow in heating PUH P125YHA UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK PUH P125YHA 1 UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK Bypass valve High pressure protect switch Ball valve 4 Way Service port check valve 23 1 Jj Thermistor Refrigerant GAS pipe trainer _ TH6 15 88mm d5 8 CS LM X oe Distributor 2 Muffler 5 ZN Thermistor TH3 P ates 1C Thermistor Capillary tube yo Lo m 4 0 3 0 L200 x2 Accumulator 04 pressure protect 1 Refrigerant LIQUID pipe Strainer 40 switch 9 5211 43 8 9 _ 7 Strainer Strainer
13. 3 001255609 2 570 E10 662 SIDEPANEL L Q ty set 71 100 VHA YHA UK PUH P PU P c E gt ____ 5 11 00045600 a s Em 3 _ 870 remm 3 11 10 Ex 7 eso 130 e valvesepassy _ 91870 _ d I 11870 656 cOvERPANELEAR 1 _ 10 870 E10 658 COVER PANEL FRONT wism ex 662 _ eso senvicerane o _ ws ow wee 313 ws 10 ewe REARGUARD _ w sm ro en wiso eo 6 76 STRUCTURAL PARTS Wiring Recom Remarks Q ty set PUH P PU P 125 140 Drawing No YHA UK DG12F536H10 BK00C456G05 7 2 me SUC V 7 US oe BAR E 4 A ETN Specification 5 T X oc lt gt 0 MI 2 EG 2 2538 m lt pe gt cc p az 21 gt lt lt lt gt Ir CN 0 CO OIN O LO CN CN CN CN e
14. 12 1 1 Selecting functions using the wired remote controller First try to familiarize yourself with the flow of the function selection procedure In this section an example of setting the room temperature detection position is given For actual operations refer to steps to 0 Setting number Refrigerant address Unit number MITSUBISHI ELECTRIC mpm LIINI 1 TEMP D ON OFF CV CA LA 2320386 OMENU ON OFF Modes 01 to 14 can be activated by pressing buttons and simultaneously and modes 15to 28 by pressing buttons and MONITOR SET DAY 38241 TEST PE gt CANC gt C V CLEAR d Selecting functions using the wired remote controller Check the function selection setting 2 Switch to function setting mode X X For modes 15 and higher Press 9 and at the same time press and at the same time with the remote controller stopped 3 Specify refrigerant address 00 outdoor unit 4 Specify unit No 00 indoor unit Use and Enter the setting Specified indoor unit Press BLOW operation Change refrigerant it No 6 Select mode 02 room temperature detection position 7 Select setting 03 remote controller fixed Use D and Example Selecting room temperature detection position Enter the sett
15. d fL PC renes ads NS NT TAS VEN GN GN INTO SBE ae EN Mm D 5 x gt 139 NC YU Rm Y RE Nol Y 27 N _ A LI OIL JA S 9 D m UTS D SS PUH P125YHA UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK m 27 28 88 2 Wiring Recom Symbol AME uc 8 870 E81 408 HEATEXCHANGER TOP 8 870 115 PROPELLERFAN 22222222 570 097 NUT 222222222 G 870 E82 408 HEATEXCHANGER UNDER o d 6 870 E60 763 FANMOTOR 11111117 Me _ 570 E02 004 RUBBER MOUNT 44444444 570 E20 236 114411111171 fe 570 E76 400 COMPRESSOR BNSXEEGMT 1 1 1 1 MC G 870 E77 400 COMPRESSOR 1 1 1 t 10 6 870 04 411 Bait vave 5 870 500 418 stop varve 38 12 G 870 E43 202 THERMISTOR DISCHARGE 414114111111 1484 136 870 361 450 STRANER 14 6 870 42H ae7 MUFFLER it ait 15 G S70 529 accuMULATORDRANPAN 1 titt 0113 166 870 E44 202 THERMISTOR 114111111 mse 17 6 870 02 413
16. eui uwous S Iejop enoed jo uonue dx3 UBD 6104 0111 YM 559228 10 oiseq 2 2 pue eu eunoes pepeeu eoeds jo suoisuawiq SMOUS eu lt 4 4 SNOILLOSYIG 9NIdIM ONIdld 7 51108 12 45 39IAd3S ay 30 45 3383 1 11 gt a m m CL OC C OQ C mm Unit lt gt 55 5 2 59 ueq inp xoouy Y m no xoou Buidid 26 NN uL euo 9 Y ejou 1 7 jue S Ec m 1 4 EZ PIED 6 8 Bt e 1nQ xo0uy p ie ejou woyog ejou A IL SN 0 S 09 no y20 19409 noy LZ ejou YOY Ajddns Buldid
17. PLA RP71AA PLA RP100AA2 PLA RP125AA2 PLA RP140AA2 _ 3 Outdoor uni UEM RN Discharge pressure Suction pressure sts Discharge temperature Suiontenpeawe o m es Intake air temperature c ua Electrical circuit 2 O O gt c u c Indoor side Outdoor side The unit of pressure has been changed to MPa based on international SI system The conversion factor is 1 MPa z10 2 kgf cm 13 Unit mm 22 9 ureJq 891 SHI 022 0 Buidid 10044 11 7 ajoy E 0 BE CN AN ef Ww g IT IU 2 5 WEN H S i no 90uy Burun 10014 INO y90UYZZF Z Ajddns ino pouy ejou 1nO oouyZz z Ajddns ejou Buun 10618 gt 22 2 Ajddns 1u0J4
18. VALVE 570 E41 440 ACCUMULATOR 570 36L 450 STRAINER 570 E02 413 CHARGE PLUG 570 E10 403 FOUR WAY VALVE S70 E41 242 SOLENOID VALVE FOUR WAY VALVE S70 E80 401 EXPANSION VALVE d d j S70 E90 401 EXPANSION VALVE ____ S70 E91 402 LINEAREXPANSIONVAVECOL 13131111111 LEV S70 E42 202 THERMISTOR 111111100 TH6 18 6 570 42H 467 196 570 E10 208 HIGH PRESSURESWITCH 63H 570 E41 408 11 1 8 570 E51 408 HEATEXCHANGER G S70 E05 716 TERMINALBLOCK __ 90825511 1 1 1 w G S70 E10 716 TERMINALBLOCK __ 1 1 1 1 TB 22 G 570 E04 716 TERMINALBLOCK 38818263 1 1 1 870 E41 255 3084409 11 11 8 570 E51 255 0 11 1 0 570 315 CONTROLERCIRCUTBOARD 1 1 6 570 FY2 315 CONTROLLERCIRCUTBOARD 1 1 __ 6 LII NS 3 8 9 570 440 708 1 f 8 870 331 708 723 HUNCAPACITOR 2 3 870 7723 084500 1 1 1 85 FUNCTIONAL PARTS PUH P71VHA YHA UK PUH P100VHA YHA UK PU P71VHA YHA UK PU
19. 29 2 Buidid 14 ejou Ajddns m ey y 22254 0 1219 g E T A SEIU I il BT A 5 ejpueH ejpueH uoneoo uonoeuuoo FATWA 401510 48 6 28 6 uonoeuuoo edid GINO Z 48 9 88 8 LG 3HV 13 uoouuoo edid 5 jaued JO 959 0951 350 CJC JC ICO O JC JC CCC IO 1 Ajddns 9 191 uornoeuuoo euw epis que3 esu 15 OLW 310g Sejou LAO YE 21 2 ce 92 99 5 78 o S Olan LIV 0 6 lt lt 1 gt paseyo
20. Note Collect refrigerant without spreading it in the air Compressor Separator fixing screw fixing nut Separator 13 Removing the Accumulator 1 Remove the service panel See figure 1 Photo 11 2 Remove the top panel See figure 1 Inlet pipe 3 Remove 2 front cover panel fixing screws 5 X 10 and EN NND Outlet pipe remove the front cover panel See photo 3 4 Remove 2 back cover panel fixing screws 5 X 10 and remove the back cover panel b Remove the electrical parts box See photo 3 6 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 X 16 and then remove the valve bed 7 Remove 3 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side panel 8 Remove 2 accumulator fixing screws 9 Collect the refrigerant 10 Remove welded pipes of Accumulator inlet and outlet 47 m e LI LM NL am a re S El Accumulator Note Collect refrigerant without spreading it in the air 75 RoHS compliant PARTS LIST non poof 7 7 7 7 7 7 faa 01 27 __ 7 __ __ 17 77 SS YY Q STRUCTURAL PARTS PUH P71VHA YHA UK PUH P100VHA YHA UK PU P71VHA YHA UK PU P100VHA YHA UK Recom Unit Amount 5 Symbol Qty Wiring Di Remarks Drawing No 6x109
21. 1 C 3113 pA C1 O lt lt 2229 T 1 3 J L 1 SSS h p 1 23 P71 P100VHA P71 P100YHA 78 Wiring Recom Diagram mended Symbol Q ty 4 94042200444 dE P100 PU P71 PU P100 Remarks Part Name Specification ARA Drawing No ___ UK 1 870 115 PROPELLERFAN 111111 LII FaNmoTOR __ lr 50 763 4 870 E41 202 THERMSTOR DISCHARGE 111111 Errem am cowemesson wewomm 3 870 am cowemesson 100 570 75 am COMPRESSOR _____ i 6870 236 111 7 870 Ex 500 fe 1111 Ew 1111 10 870 Ew aao accumuLaroR 111870 36 as smmER wism 2 222 135 am roumwavvawE rt 141870 Ew 242 870 401 EXPANSIONVALVE Ew 401 177 mo memweron em 19 570 208 raa Ew am via es 408 HEATEXCHANGER hhli 1
22. 220 240 1 2154 is only for PUH P71 P100VHAq UK and PUH P71 P100 P125 P140YHA q UK x2 SV is only for PUH P125 P140YHA q UK and PU P125 P140YHA q UK x3 63L is only for 125 P140YHA q UK and PU P125 P140YHA q UK 4 Themal relay is only for PU H P71 P100 P125 P140YHA q UK 48 2 11 9 EMERGENCY OPERATION 1 When the outdoor unit becomes under mentioned inspection display Also when the wired remote controller or micro com puter in the indoor unit is broken If there is not any wrong section short circuited connector CN31 in the outdoor con troller board is possible to emergency operation O Trouble to which emergency operation can be set Display Inspections details Piping thermistor TH3 or condenser thermistor TH6 open short Transmission between indoor and outdoor unit Receiving trouble outdoor unit Transmission between indoor and outdoor unit Transmission trouble outdoor unit 7 Transmission trouble except for outdoor unit 2 Check items and notices as the emergency operation 1 Be sure that there is no trouble in the outdoor unit any more besides above mentioned When there is trouble besides above mentioned emergency operation is not available 2 When the emergency operation their switch SWE setting in the indoor controller board is necessary 3 Emergency operation will be serial operation by the power supply ON OFF ON OFF or temperature etc adjustmen
23. 6 2 COMPRESSOR TECHNICAL DATA at 20 EE EN PUH P71VHAcxv UK PUH P71YHAqox UK PUH P100VHAc UK PUH P100YHAq UK PU P71VHAqoxu UK PU P71YHAqxv UK PU P100VHA UK PU P100YHA UK Compressor model NN33VAAMT NN33YCAMT NN40VAAMT NN40YCAMT Winding Resistance 9 at 20 EE EN PUH P125YHAq UK PUH P140YHA UK PU P125YHAcx UK 140 Compressor model BN52YEGMT BN65YEGMT Winding Resistance U W 1 794 9 W V 1 794 6 3 NOISE CRITERION CURVES PUH P71VHA UK MODE SPL dB PUH P100VHA UK MODE 5 PUH P71YHA UK PUH P100YHA UK PU P71VHA UK PU P100VHA UK PU P71YHA UK PU P100YHA UK 5 5 ce 50 5 9 i Q3NC 30 3 3 gt gt 20 5 5 000 2000 4000 125 250 000 2000 4000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz PUH P125YHA UK SPL dB PU P125YHA UK z Q N e z Q o e D A e o S DNE LI M ACT SS EBD OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz ggg 8 EMI a A yids MAPAS eqr 200070 0 1 563 4 ANNOS aNva 3 E E gt D t HEATING 53 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz 250 E m u L
24. After this setting is made the temperature can be changed within the set range e To switch the setting press the C ON OFF button LIMIT TEMP COOL MODE The temperature range can be changed on cooling dry mode LIMIT TEMP HEAT MODE The temperature range can be changed on heating mode LIMIT TEMP AUTO MODE The temperature range can be changed on automatic mode OFF initial setting The temperature range limit is not active When the setting other than OFF is made the temperature range limit setting on cooling heating and automatic mode is made at the same time However the range cannot be limited when the set temperature range has not changed e To increase or decrease the temperature press the HE TEMP V or button e To switch the upper limit setting and the lower limit setting press the 4 button The selected setting will flash and the temperature can be set e Settable range Cooling Dry mode Lower limit 19 30 Upper limit 30 19 C Heating mode Lower limit 17 28 Upper limit 28 C 17 Automatic mode Lower limit 19 C 28 Upper limit 28 19 C 65 Function selection flowchart Setting language English Change Language Function selection Mode selection Display mode setting Normal display Display when the air conditioner is not running Hold down the 6 button and press the D button for 2 seconds Remote controller function select
25. Power supply 3 poles isolator A Control S A Control Outdoor Unit Indoor Unit 1 1 system Synchronized twin and triple system Electrical wiring Synchronized twin Outdoor Outdoor Remote Unit controller power Indoor outdoor supply Indoor outdoor unit connection unit connection Earth leakage breaker Earth leakage breaker wiring circuit breaker or wiring circuit breaker isolating switch isolating switch LES Outdoor Indoor Indoor Indoor unit B 1 Ol Sh 0 controller supply B Indoor outdoor 1 connection cable Earth leakage breaker wiring circuit breaker isolating switch 18 9 2 SEPARATE INDOOR UNIT OUTDOOR UNIT POWER SUPPLIES The following connection patterns are available The outdoor unit power supply patterns vary on models 1 1 System Indoor unit power supply lt For models without heater gt Outdoor unit power supply The optional indoor power supply terminal kit is required Earth leakage breaker Wiring circuit breaker or isolating switch 4 Y Outdoor unit a lo a o mi e Indoor unit outdoor unit connecting cords el ej Remote controller dd 8 Indoor unit 52 52 Option c El Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units Simultaneous twin triple system For models without h
26. Recom Diagram mended Symbol Q ty Wi 10 Remarks Drawing No DG12F536H10 BK00C456G05 BK00C493G01 A IT a 9 gt i e 2 5 r 4 Q 15 lt LNI 5 gt M SSS RS lt lt lt Specification ajej 890 7 LA Fh 6 6 51 1 1 1221 1 1 1 1 1 1 EEEL hr i 2 1570 Em 662 8 570 Em 67 870 Em ee FRONTPANEL 5 G SEPARATOR 570 Em 658 COVERPANEL REAR _ 12 8 570 662 SIDE PANEL A 18 8 570 E40 661 SERVICE PANEL 14 8 870 001 18 0 870 Ez REARGUARD 16 8 870 E10 en TOPPNEL 000000 17 8 870 655 HANDLE _ 570 E60 130 MOTOR SUPPORT 8 G ASSY 10 0 870 E10 658 COVER PANEL FRONT 870 E40 686 BASE ASSY 9 G 870 301 655 HANDLE FUNCTIONAL PARTS PUH P71VHA YHA UK PUH P100VHA YHA UK PU P71VHA YHA UK PU P100VHA YHA UK 18 17 TH6 17 TH3 Gi 5 16 15 gt LU NR pi m Sic EN FY 2 el LP 7 d 8 14 ERU q D 1
27. TH6 TH3 Example When 115 One second interval 111 15 96 SW setting Display detail Explanation for display 123456 123456 123456 123456 Thermo ON time to error stop 0 999 Indoor unit piping temperature cond Eva TH5 indoor 1 39 88 Indoor unit piping temperature Eva TH5 indoor 2 39 88 Indoor unit piping temperature Eva TH5 indoor 3 39 88 Indoor unit piping temperature cond Eva TH5 indoor 4 39 88 For A control Service Tool PAC SK52ST Operation for A control Service Tool 1 By operating the dip switch SW2 on A control Service Tool the digital display of light emitting diode LED1 indicates the operation mode and types of inspection with a two digit number and symbol 2 After the inspection A control Service Tool shall be removed out of outdoor unit control board 57 0 999 When the time is 100 or more the hundreds digit and tens unit digits are displayed by turns Example When 415 minutes One second interval 40 15 39 88 When the temperature is 0 C or less and temperature are displayed by turns 39 88 When the temperature is 0 or less temperature are displayed by turns When no indoor unit 00 is displayed 39 88 When the temperature is 0 or less temperature are displayed by turns When no ind
28. 100 100 Linear expansion valve Stop valve with service port Refrigerant flow in cooling gt Refrigerant flow in heating 23 11 TROUBLESHOOTING 11 1 TROUBLESHOOTING Error code display self diagnosis and actions to be taken for service gt Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit Actions to be taken for service which depends on whether or not the inferior phenomenon is reoccurring at service are sum marized in the table below Check the contents below before investigating details Unit conditions at service Actions to be taken for service summary Judge what is wrong and take a corrective action according to 11 4 Self diagnosis action table The inferior phenomenon is Conduct trouble shooting and ascertain the cause of the Not displayed inferior phenomenon according to 11 5 Troubleshooting by inferior phenomena Consider the temporary defects such 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 Logged B occurred matters related to wiring Reset error code logs and restart the unit after finishing service There is no abnormality concerning of parts such as electrical component controller b
29. 9 0 Check power supply voltage 4101 age 9 Short interruption value that exceeds set value during com Defective thermistor check if 04 is displayed pressor operation Defective outdoor controller If U4 is displayed follow the U4 process 71 140 70 ing direction Abnormal High pressure D Gas pipe side ball valve and D Open ball valve and stop valve This error is detected 4 14MPa from 63H liquid pipe side stop valve 29 Turn the power off and operate again to action within 20 seconds of compressor shut during operation check if F5 is displayed starting in the first heating mode after 2 Disconnection or contact failure If F5 is displayed follow the F5 processing power on of 63H direction UE 63H high pressure switch 3 Defective outdoor controller board 2 Check indoor filter 1302 Over heat protection over load opera In cooling mode defective Check outdoor fan fan motor tion protection abnormal fan outdoor fan fan motor or Refer to 11 6 Ud Abnormal if pipe thermistor detects the short cycle of air path 90 Turn the power off and operate again to 1504 2 Power supply reset is detected amp Replace outdoor controller board while indoor filter clogs and Check linear expansion valve overload heating operation Refer to 11 6 Defective outdoor controller board 9 Defective action of linear expansion valve Abnormal low pressure 63L worked D Gas pipe side b
30. CVV CVS VVR VVF VCT Diameter 1 25mm or more Extinction of transmission wire voltage and signal is caused by over numbered units six times continuously Note The address and attribute displayed at remote controller indicate the con troller that did not reply ACK If there were some troubles of 07 06 above repair the defective then turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power Accidental malfunction of on again abnormality detected controller If there was no trouble with 0 5 above in sin noise thunder surge gle refrigerant system one outdoor unit con 9 Defective of abnormality gen troller of displayed address or attribute is erated controller defective 2 If displayed address or attribute is out Contact failure of transmission there was no trouble with above in dif door unit indoor unit detects abnormali wire of outdoor unit or indoor ferent refrigerant system two or more outdoor ty when indoor unit transmitted to out unit units judge with 6 door unit and there was no reply ACK 9 Disconnection of transmission connector CN2M of outdoor If address of abnormality source is the unit address that should not exist there is the A7 Defective transmitting receiv unit that memorizes nonexistent address 6607 ing circuit of outdoor unit or information Delete useless addres
31. Removing the thermistor Discharge TH4 1 Remove the service panel See figure 1 2 Disconnect the connector TH4 white on the controller circuit board in the electrical parts box 3 Loosen the clamp for the lead wire 4 Pull out the thermistor Discharge TH4 from the sensor holder Thermistor Discharge 4 68 OPERATING PROCEDURE PHOTOS 6 Removing the solenoid valve coil Four way valve 2154 Photo 6 linear expansion valve coil LEV 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove the electrical parts box See photo 3 sura Four way vane Removing the solenoid valve coil lt Four way valve gt 4 Remove solenoid valve coil lt Four way valve gt fixing screw M4 X 6 b Remove the solenoid valve coil Four way valve by sliding the coil toward you 6 Disconnect the connector 2154 green on the controller board in the electrical parts box Removing the linear expansion valve coil See Photo 7 4 Remove the linear expansion valve coil by sliding the coil upward 5 Disconnect the connector CNLEV white on the controller circuit board in the electrical parts box 7 Removing the four way valve 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove the electrical parts box See photo 3 4 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop va
32. a CHECK LOUVER h Select setting No 02 OFF TAT Set address 02 while still in troubleshooting mode then press the HOUR button min 1 1 SET RESET CLOCK o End function selection mode Note When you switch to function selection mode End troubleshooting mode on the wireless remote controller s operation area the unit ends function selection mode automatically if nothing is input for 10 minutes or longer Operating instructions D Check the function settings Press the button twice continuously gt CHECK is lit and 00 blinks Press Ihe temp a button once to set 50 Direct the wireless remote controller toward the receiver of the indoor unit and press the button 3 Set the unit number Press the temp A button to set the unit number Press 01 to specify the indoor unit whose unit number is 01 Direct the wireless remote controller toward the receiver of the indoor unit and press the button By setting unit number with the button specified indoor unit starts performing fan operation Detect which unit is assigned to which number using this function If unit number is set to AL all the indoor units in same refrigerant system start performing fan operation simultaneously If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the unit number setting f the s
33. and code Thermo ON time 0 999 Trial run elapsed time 0 120 The number of connected indoor unit 0 4 temperature displayed by turns Example When 15 One second interval 0 15 0 216 When the temperature is 100 or more the hundreds digit and tens unit digits are displayed by turns Example When 130 C C One second interval 1L1 30 Code display Code display When no error history and and displayed by turns When no error history 0 and and displayed by turns 0 999 When the time is 100 or more the hundreds digit and tens unit digits are displayed by turns Example When 245 minutes One second interval 2 45 0 120 When the time is 100 or more the hundreds digit and tens unit digits are displayed by turns Example When 105 minutes One second interval 10 lt 05 54 2 SW setting Display detail Explanation for display ON i 123456 ON 123456 123456 123456 123456 131 123456 123456 Capacity setting display Outdoor unit setting advice Indoor unit piping temperature LIQUID TH2 Indoor 1 39 88 Indoor unit piping temperature LIQUID TH2 Indoor 2 39 88 Indoor unit piping temperature LIQUID TH2 Indoor 3 39 88 Indoor unit piping temperature LIQUID TH2 Indoor 4 39 88 Indoor room temperature
34. 10 and 4 ball valve and stop valve fixing screws 5 X 16 and then remove the valve bed 7 Remove 3 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side panel 8 Remove 3 separator fixing screws 4 10 and remove the separator 9 Collect the refrigerant 10 Remove the 3 points of the motor for compressor fixing nut using a spanner or a monkey wrench 11 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor Note Collect refrigerant without spreading it in the air Separator Compressor Separator fixing nut fixing screw 11 Removing the Accumulator Photo 10 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 2 front cover panel fixing screws 5 X 10 and remove the front cover panel See photo 3 4 Remove 2 back cover panel fixing screws 5 10 and remove the back cover panel A b Remove the electrical parts box See photo 3 lt 6 Remove 3 valve bed fixing screws 4 10 and 4 ball valve E lt and stop valve fixing screws 5 X 16 and then remove the valve bed 7 Remove 3 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side panel 8 Collect the refrigerant 9 Remove welded pipes of Accumulator inlet and outlet a 7 Accumulator leg Note Collect refrigerant without spreading it in
35. CHARGEPLUG 7 22222222 f 18 6 870 282 403 narii s e o 19 6 870 E03 242 SUUENODCOLGYMSS WIE 11111111 20 6 870 E90 401 EXPANSIONVAIVE 11111 21 570 E91 401 LNEAREXPANSIONVALVECOL 1311 10 13 22 570 409 FOURWAYVALVE 11111 l 23 570 E43 241 SUEODCOLFURITWDE 41 as 24 6 870 E10 208 HIGHPRESSURESWTCH 31 1 11 1 1 11 25 6 870 20 209 LOWPRESSURESWTCH 141141111110 6 26 6 870 61 440 accumulator __ _ nuni 27 G 570 E10 716 TERMINALBLOCK 11141141411 28 G S70 E04 716 TERMINALBLOCK 38 81 6283 11 1 1 1 1 1 870 E41 255 FANCAPACITOR 3uFaaov 2 2 2 2 f 870 31L 255 FANCAPACIOR 3508409 2 2 2 2 G 870 FY2 315 CONTROLERCRCUTBOND J G 870 FY9 315 CONIROUERCRCUTBONRD 1117 6 870 640 708 contactor 1 1 1 6 870 540 708 CONTACTOR 4111 89 54 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed Apr 2007 No OC379 REVISED EDITION C PDF 7 New publication effective Apr 2007 Distributed in Jul 2006 No OC379 REVISED EDITION B PDF 7 Specifications subject to change without notice Distributed in May 2006 No OC379 REVISED EDI
36. COIL BYPASS VALVE SOLENOID COIL HIGH PRESSURE PROTECT SWITCH THERMAL RELAY TERMINAL BLOCK LINEAR EXPANSION VALVE TERMINAL BLOCK LOW PRESSURE PROTECT SWITCH 108 OUTDOOR CONTROLLER BOARD CN31 O B EMERGENCY OPERATION CONNECTER O B CNVMNT CNLEV WHT WHT c C LED2 RED 7 SEW SW5 51 4 W ON TH6 it Mid a HMM 1 0 108 EN dou Eu 225 nu uen mes 53 1 PU H P125 140YHA MODEL ONLY C a ZS 1 7 FUSE Cw 7p v3 uses 51 m 5 O O rea FUSE3 x2 PUH P71 P100 P125 P140YHA MODEL ONLY 9 x3 71 100 MODEL ONLY 2221 01 14 4 MODEL SELECTION MODEL J2 u3 Ja PUH P71YHA PUH P100YHA INDOOR PUH P125YHA NND 1 0 82 UNT PU P100YHA im PU P125YHA PU P140YHA Notes when servicing with jumper wire without jumper wire Some fastening terminals have a lock mechanism When removing the fastening terminal push the projection locking lever on a terminal with your finger and pull it out T ac OJO x eo POWER SUPPLY N x 17 9 WIRING SPECIFICATIONS 9 1 FIELD ELECTRICAL WIRING power wiring specifica
37. MU A T 9 Xi 2 b WI 7 7 2 if Y ____ x 11 x 1 10 7 L WV 7 2 2 57 il EC ap A nf Fh NS W H 7 2 nw a K S 1 iN MUS N 1 2 7 2 23 P71 P100VHA P71 P100YHA 84 Part Name Q ty set PUH P71 PUH P100 PU P71 PU P100 Remarks Wiring Recom Specification Drawing No ri iig 570 04 115 PROPELLER FAN 570 K01 097 NUT 570 E40 763 MOTOR 570 50 763 S70 E41 202 DISCHARGE 570 E72 400 COMPRESSOR 570 E73 400 COMPRESSOR 570 E74 400 COMPRESSOR 570 E75 400 COMPRESSOR e e e e 11311113 G G G S70 E10 236 CRANKCASE HEATER e e e e e e G e _____ 11030111 1 NN40VAAMT 4 9 we sepes 44444440000 000000 E E E 5 570 0 401 RUBBER MOUNT 570 500 418 STOP VALVE 570 E04 411
38. Never use pipes of 0 7mm or below Diagram below Piping diameter and thickness Outside Thickness mm diameter mm R410A R22 1905 822 08 08 08 19 05 Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants In addition to that R410A is a refrigerant which has higher risk of leakage because of its working pressure higher than that of other refriger ants Therefore to enhance airtightness and intensity flare cutting dimension of copper pipe for R410A have been speci fied separately from the dimensions for other refrigerants as shown below The dimension B of flare nut for R410A also have partly been changed to increase intensity as shown below Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below For 1 2 and 5 8 the dimension B changes Use torque wrench corresponding to each dimension 2 Dimension Flare nut dimensions mm Outside dimensions diameter 36 0 for indoor unit 15 88 of RP100 19 00 233 19 00 360 125 140 Tools for R410A The following table shows whether conventional tools can be used or not Air purge reftigerant charge Tool exclusive for Charge hose Operation check exclusive for Rato _ Gas leak detector Gasleakcheck refrigeran
39. TH1 8 39 55 Display as an outdoor capacity code Code display The tens digit Total display for applied setting Setting details Display details H P Cooling only O H P 1 Cooling only Single phase Three phase O Single phase 2 Three phase Code display The units digit Setting details Display details Defrosting switch Normal 1 High humidity region Example When switching cooling and heat pump three phase defrosting normal 39 88 When the temperature is OC or less and temperature are displayed by turns 39 88 When the temperature is OC or less and temperature are displayed by turns When no indoor unit 00 is displayed 39 88 When the temperature is OC or less and temperature are displayed by turns When no indoor unit 00 is displayed 39 88 When the temperature is OC or less and temperature are displayed by turns When no indoor unit 00 is displayed ON 3 123456 123456 ON 123456 ON 123456 ON 123456 ON 123456 Explanation for display Indoor setting temperature 17 30 17 30 Outdoor piping temperature Cond Eva 39 88 TH6 When the temperature is OC or less 99 88 temperature are displayed by turns Discharge super heat SHd 0 255 0 255 When the temperature is 100 or more the hundreds digit and tens unit digits a
40. and contact fault of the con nector clogging dirt Heat exchanger clogging dirt Air duct short cycle Refrigerant shortage failure in electronic expansion valve Thermistor connection failure Incorrect piping size GPiping is too long Filter clogging dirt Heat exchanger clogging dirt Air duct short cycle Refrigerant shortage amp Outdoor unit bypass circuit failure amp lIndoor reverse check valve failure Reverse check valve failure may cause refrigerant leakage and restrictor failure Heat insulator of refrigerant pipes is defective amp Malfunction of LEV Loose connection in thermistor 40 Louver motor resistance value check Check the removing of indoor controller board CNL breaking line and contact fault the grille to check the filter Clean the filter and remove dust or dirt away Clean the heat exchanger Lowering the indoor piping temperature and intake pressure means clogging in the heat exchanger Remove screen in the air duct air outlet intake Check if gas leaks or not in the piping joint Check the refrigerant circuit operation status Check the piping size amp Check the capacity loss characteristic for the piping length the grille to check the filter Clean the filter and remove dust or dirt away Clean the heat exchanger Rising the indoor piping temperature and outlet pressure means
41. clogging in the heat exchanger Remove screen in the air duct air outlet intake Check if gas leaks or not in the piping joint amp Operating condition check in the refriger ant cycle Since outlet temperature and indoor heat exchanger temperature does not rise measure the outlet pressure and deter mine the countermeasure Check the heat insulator Check the function of refrigerant circuit 2 for wired remote controller Check the following table to see whether there is a simple solution to your problem Problem The room neither gets cool nor warm very much The unit does not blow air out right away in the heating mode The unit stops operating before arriving at the set temperature in the heating mode The airflow direction suddenly changes Air direction doesn t move change Up down vane left right louver When changing the airflow direc tion the vanes make at least a complete rotation before stopping in place There is a swishing noise that occurs from the unit when water flows Unit occasionally makes a gurgling sound Unit occasionally thuds Outdoor unit occasionally rattles Solution Clean the filter Dust and debris that are collected in the filter will decrease air flow Solution This sound is made when internal parts of the unit expand or contract when the temperature changes Problem A ticking noise is heard from inside of the unit heck the t
42. does not indicate any malfunction 43 2 11 6 HOW TO CHECK THE PARTS PUH P71VHAq UK PUH P100VHAq UK PUH P71YHAq UK PUH P100YHAq UK PUH P125YHAqa UK PUH P140YHAq UK PU P71VHAq UK PU P100VHAq UK PU P71YHAq UK PU P100YHAq UK PU P125YHAq UK PU P140YHA 1 UK Thermistor TH3 lt Outdoor pipe gt Thermistor TH4 lt Discharge gt Thermistor TH6 lt Outdoor 2 phase pipe gt FAN MOTOR MF P71 P125 P140 Protector OPEN 141 OPEN 13555 Protector OPEN 140 5 CLOSE 90 15 Solenoid valve coil lt Four way valve gt 21S4 Motor for compressor MC Solenoid valve coil lt Bypass valve gt SV For P125 P140 CRNKCASE HEATER CH Disconnect the connector then measure the resistance using a tester Surrounding temperature 10 30 Abnomal 160kQ 410k2 TH3 Open or short Measure the resistance between the terminals using a tester Surrounding temperature 20C Motor lead wire Abnormal P71 P125 P140 P100 White Black 182 50 10 44 50 7 Open or short White Red 102 00 10 43 70 7 Measure the resistance between the terminals using a tester Surrounding temperature 20C Normal Abnormal P71 P100 P125 P140 Open or short 150021500 1435 1500 Measure the resistance between the terminals using a tester Winding temperature 20 Normal Abnormal Refer to 6 2 Open or short Disconnect the connector then measure the resistan
43. error Indoor controller side Remote controller transmission error error Indoor controller side 4 blinks Undefined error code D Check if there is noise on the transmission lines of remote controllers 2 Check if there is noise on the connecting wires of indoor outdoor units 9 Turn the power off and let the units operate again to confirm To be continued on the next page 58 From the preceding page Indication O B Inspection method LED1 LED2 Green blinks 1 blink Abnormal high discharge temperature TH4 Check if ball valves are open 2 Check the continuity of connector TH4 on outdoor controller board by using a tester 9 Check if the unit fills the refrigerant at the same amount as specified 2 blinks sAbnormal high pressure High pressure Check if indoor outdoor units have a short cycle on their air switch 63H worked ducts 2 Check if the connector of 52C 63H on outdoor controller board is disconnected 3 Check if the units get their heat exchanger and filter dirty and clogged 4 Measure resistance values among terminals on linear expansion valve by using a tester Abnormal low pressure Low pressure D Check stop valve switch 63L worked 00 Turn the power off and on again to check if is displayed on restarting If F3 is displayed follow the F3 processing direction 5 Correct to proper amount of refrigerant Check linear expansion valve Refer to 11 6 2 Check i
44. in D mmiin mm in kg lbs 94 207 OUTDOOR UNIT Weight Refrigerant R410A 3 6 7 9 4 4 9 7 1 30 MEL56 Za Q D Pipe size O D Liquid Connection method Outdoor side Between the indoor amp Height difference outdoor unit Piping length REFRIGERANT PIPING Service Ref PUH P125YHAq1 UK PUH P140YHAq1 UK Power supply phase cycle voltage Compressor Model Protection devices Discharge thermo HP switch Thermal rela Crankcase heater W Heat exchanger Fan Fan drive x No Defrost method Cooling dB 50 Heating dB 52 Dimensions D J A 330830 13 1 3 16 o Z3 A4 O Refrigerant Oil Model 2 10 MEL56 Pipe size O D 9 52 3 8 OUTDOOR UNIT outdoor unit REFRIGERANT PIPING Service Ref PU P71VHA YHA 1 UK PU P100VHA YHA q UK Mode Cooling Power supply phase cycle voltage Single 50Hz 230V 3Phase 50Hz 400V 4wires 12 08 4 20 15 07 5 18 External finish Munsell 5Y 7 1 Refrigerant control Linear Expansion Valve Compressor Hermetic NN33VAAMT NN33YCAMT Motoroutput 1 KW 2 2 Line start Protection devices V Internal thermostat Y Thermal relay HP switch HP switch Discharge thermo Discharge thermo Crankcase heater Ww 25 25 Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output 0 070 0 110 m min CFM 55 1940 65 2290 2222271 a a a NN
45. indoor unit for the self diagnosis Note Set refrigerant address using the outdoor unit s DIP switch SW1 For more information see the outdoor unit installation manual ON OFF button FAN AUTOSTOP 3 Point the remote controller at the If an air conditioner error occurs the Dr sensor to the indoor unit and indoor unit s sensor emits an intermit CHECK LOUVER h press the HOUR button tent buzzer sound the operation light pe E flashes and the error code is output RESET CLOCK It takes 3 seconds at most for error code to appear CHECK button 4 Point the remote controller at the The check mode is cancelled sensor to the indoor unit and press the ON OFF button 29 Refer to the following tables for details on the check codes Output pattern A Beeper sounds Beep Beep Beep Beep Beep Beep OPERATION 15 3ra 21 n 214 Repeated INDICATOR DA een fee eae lamp blink Off On On On On Off On On pattern Approx 2 5 sec 0 5 sec 0 5 sec 0 5 sec Approx 2 5 sec 0 5 sec 0 5 sec Self check PPro Sec 0 5 sec App starts Start signal received Number of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e 5 for 5 the check code in the following table Output pattern B Beeper sounds Beep Beep Beep Beep
46. power is not turned on Power supply inferior COCheck the power wiring to the outdoor unit and the breaker off off off OMis wiring breaking or contact failure of the connect for incorrect wiring wiring breaks and poor ing line connections between the indoor and outdoor units ChRefrigerant address excepts 0 2 refrigerant to 0 only 1 refrigerant can be Mis wiring breaking or contact failure of the connect forgrupcontol Lighting off or blinking GCheck for incorrect wiring wiring breaks and poor connections between the indoor and outdoor units Short circuit miswiring and breaking E S wiring and wiring breaks in the Replace the remote controller if the voltage to the remote controller terminal block TB6 is between 10 and 16V DC 2 Remaining PLEASE WAIT display At longest 2 minutes after the power supply PLEASE Normal operation on the remote controller WAIT is displayed to start up Communication fault between the remote controller Turn the power supply OFF ON and check and indoor the following fault between the indoor and outdoor Olf an error is displayed on the remote con Outdoor unit protection device is opened troller or outdoor unit s LED within 6 min Abnormal code will be displayed after 2 6 minutes utes Refer to the self diagnosis table on p 31 to take appropriate action HO display re
47. set refrigerant address to 07 in case of wireless remote controller referring to 4 setting the indoor unit number 216 2500Hr 07 2 No filter sign indicator 3 Air flow a PLA AA PLH High ceiling ceiling 3 directions 2 2 directions Optional high efficiency _ Not supported 10 10 filter Supported 2 Vane setting No vanes Vane No 3 setting PLA PLH only 11 Vane 1 setting 2 Vane No 2 setting Energy saving air Disabled 2 LA 12 flow Heating mode Enabled 220 Optional humidifier Not supported Supported 2 Vane differential setting in heating mode No 2 setting Standard 5 28 32 cold wind prevention No 3 setting TH5 32 38C Swing Not available Swing PLA BA 2 H Available air flow 2 Set temperature in heating Available Temperature correction Valid a4 1 1 mode 4 dea up Not available Temperature correction Invalid 122 Fan speed when the Extra low E MEE heating thermostat is OFF Stop 25 2 Set fan speed 3 Quiet operation mode Disabled Standard 26 1 1 of PLA AA Fan speed Enabled Quiet operation mode pug Fan speed when the Set fan speed 4 2 27 cooling thermostat is OFF Stop NC NN Detection of abnormality of Available 28 the pipe temperature P8 Not available 61 Initial setting Factory setting Not available 1 Way Casette PLA AA 2
48. 6 Wait for 4 minutes at the longest 1 second interval 2 When the display lights Normal operation Operation mode display Error postponing display Compressor stop by the protection device working Display the postponement code Postponement code is display during the error postponing 3 When the display blinks Operation stop by the protection device working Display the inspection code An error unit number and code are displayed by turns lt Abnormal unit number gt lt Abnormal code gt Display Inspection unit 1 second EX Outdoor unit O Q d Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4 4 When 7SEG display lights up Protective device stops compressor operating The screen displays the corresponding code when abnormality is being recorded 52 SW setting Display detail Explanation for display Piping temperature TH3 40 90 40 90 When the coil thermistor is OC or below and temperature displays by turns Example When 10 123456 One second interval lt 10 Discharge temperature TH4 0 216 0 216 When the discharge thermistor is 100 or more the ON hundreds digit and tens unit digits are displayed by turns 123456 Example When 150 One second interval 10 50 FAN output step 0 16 ON Step 123456 The number of ON OFF times 07 9999 07 9999 When the number of times is 100 or more the ON
49. 63L connector open Disconnection or contact fail Check connection of 63L connector on Abnormal if 63L connector circuit is open ure of 63L connector on out outdoor controller board for 3 minutes continuously after power door controller board Refer to 11 7 F3 supply Disconnection or contact fail 2 Check the 63L side of connecting wire 63L Low pressure switch ure of 63L Check refrigerant pressure 5202 9 63L is working due to refrigerant Charge additional refrigerant PU PUH P125 140YHA UK Only leakage or defective parts Check continuity by tester Defective outdoor controller Replace the parts if the parts are defective board 2 Replace outdoor controller board Reverse phase detector circuit Defective outdoor controller Replace outdoor controller board E7 controller board fault board Abnormal if some of each phase detection 4118 signal is not input 3 seconds after power supply 2 or more connectors open D Disconnection or contact fail Check connection of 63L 51 Abnormal if two more out of connector ure of connector 63L 51CM connector on outdoor controller board 63L 51CM circuits are open for 3 min on outdoor controller board Refer to 11 7 utes continuously after power Disconnection or contact fail Check the 63L 51CM side of F9 ure of 631 510 connecting wire 4119 9 Defective 63L 51C defec Check continuity by tester tive parts Replace the parts if the
50. 7 100C 13 0 200 60C 48kQ 110C 9 8kQ 100 0 25 50 75 100 120 Temperature 45 Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the outdoor controller board Valve position can be changed in proportion to the number of pulse signal Connection between the indoor controller board and the linear expansion gt Outdoor controller board DC12V LEV Gray 1 3 4 Orange 3 p D 4 01 3 Red 4 roms 7 6 000 000 4 2 vow sh ilu LIT lt 61 Black 6 2 7 MEE Connector CNLEV Output pulse signal and the valve gt Output Phase 7 Opening 8 7 6 5 4 3 2 1 8 Closing a 1 gt 2 gt 3 gt 4 gt 5 gt 6 gt 7 gt 8 gt 1 The output pulse shifts in above order OFF 1 When linear expansion valve operation stops all output phase bone OFF 4 When the switch is turned on 700 pulse closing valve signal will be sent till it goes amp point in order to define the valve position The pulse signal is being sent for about 20 seconds 2 Linear expansion valve operation When the valve moves smoothly there is no noise or vibration occu
51. AOYCAMT 2 7 OUTDOOR UNIT Noise level Colng dB 49 J 31 5 0 Heating 48 _____ 8 2 950 37 3 8 330 30 13 1 3 16 943 37 1 8 93 205 94 207 Refrigerant R410A 3 6 7 9 4 4 9 7 1 30 MEL56 Pipe size O D 9 52 3 8 15 88 5 8 Connection method Between the indoor amp Height difference Max 50m outdoor unit Piping length Mode Power suppl phase cycle voltage 3Phase 50Hz 400V Runningcurrent 1 69 1785 1 A 4 2 9 7 02 Compressor Hermetic Model Motor output L w 8 Fd Starter type 2 type 2 Line start start Protection devices Discharge thermo HP switch rela Crankcase heater Heat exchanger 5 EL coil Fan Fan drive x No Propeller fan x 2 Fanmotorouput kw 0 00 0 us Defrost method Heating B Dimensions 950 37 3 8 D mm n 830430 1341 16 H mm n 1 350 s 1 8 Refrigerant Pipe size outdoor unit Dimensions c5 Cc oc LL Cc OUTDOOR UNIT REFRIGERANT PIPING e BAR n 6 1 REFILLING REFRIGERANT CHARGE R410A kg Piping length one way Factory iudi 30m 40m charged PUH P71VHA YHAq UK PUH P100VHA YHAq UK PU P100VHA YHAw UK TE 44 5 0 5 6 4 4 PUH P125 140YHAq UK PU P125 140YHAq UK 4 8 4 9 5 0 6 2 PRE CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT
52. Changes the Better MITSUBISHI ELECTRIC HEAT PUMP AIR CONDITIONERS SPLIT TYPE AIR CONDITIONERS April 2007 No OC379 REVISED EDITION C SERVICE MANUAL Outdoor unit Revision model names Service Ref PU H P71 100 125 140V YHA UK PU P71VHA PU P71VHA UK PU P71VHA UK PU P71YHA PU P71YHA UK PU P71YHA UK Some descriptions have pu P100vHa PU P100VHA UK PU P100VHA UK pu P100YHA PU P100YHA UK PU P100YHA UK void 00379 PU P125YHA PU P125YHA UK PU P125YHA UK PU P140YHA PU P140YHA UK PU P140YHA UK Note his manual describes only service data of the PUH P7IVHA PUH P7Z1VHA UK PUH P7Z1VHA UK gutdoorunits ucts PUH P71YHA PUH P71 YHA UK PUH P71 YHA UK have G en the PUH P100VHA UK PUH P100VHA UK of RoHS PUH P100YHA PUH P100YHA UK PUH P100YHA UK compliant products refer PUH P125YHA PUH P125YHA UK PUH P125YHA UK 9768055 Fash 14 PUH P140YHA UK PUH P140YHA UK CONTENTS 1 TECHNICAL 6 2 2 REFERENCE 2 3 SAFETY 1 3 4 FEATURES 6 5 lt 6 2 0 0400 7 e DAA UEM UNT 9 7 OUTLINES AND DIMENSIONS 14 8 WIRING DIAGRAM 16 9 WIRING
53. IT and cannot be operated green lights up 00 minutes during system startup Normal After startup is displayed green once and red once blink alternately lt F1 gt After startup is displayed Incorrect connection of outdoor terminal block L Lz Ls and After power is turned on PLEASE WAIT 1 S2 S3 is displayed for 3 minutes then error code green once and red twice blink Outdoor unit s safeguard installation connector is open alternately F3 F5 F9 After startup is displayed Incorrect wiring between the indoor and outdoor unit Polarity green twice and red once blink is wrong for S1 S2 S3 alternately EA Remote controller transmission wire short There is no outdoor unit of address 0 No display appears even when remote controller operation switch is turned on Operation lamp does not light up After startup is displayed only Address is other than 0 green lights up 00 4 Remote controller transmission wire burnout Display appears but soon disappears After startup is displayed only After canceling function selection operation is not possible for even when remote controller is operated green lights up 00 about 30 seconds Normal Press the remote controller s CHECK button twice to perform self diagnosis See the table below for the contents of LCD display Contents of inferior phenomena E6 EF Indoor out
54. P100VHA YHA UK 18 17 TH6 17 TH3 16 15 iC iN IDEA AV 14 ie YN UN 13 5 SANSA iod w di NI e 4 5 8 ____ L LI 1 I C is 11 ERI RI 10 544 qu Ng M lt a 1 gt m lt LESA Se AE SS he Soa zu S SSSSs S _ ELM 1 M cens Re 23 P71 P100VHA P71 P100YHA 86 ee Remarks Wiring Recom Price Part Name S ecification d jn Mm pete nii 2206 2 21 01 Gsm e 7ealFanmoroR 000000 4 a so En 202 prar 570 400 COMPRESSOR 1 74 400 COMPRESSOR _____ 1 87 75 400 COMPRESSOR 570 ex 2 7 6 ex ___ ____ so ee 870 eo smawm 1218 tm
55. RP60 71 100GA PEAD RP50 60 71 125 140EA UK PEAD RP35 100EA2 UK HWEO05210 PEAD RP60 71 100GA UK m 2 2 TECHNICAL DATA BOOK Manual No 507 13 SAFETY PRECAUTION 3 1 CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use new refrigerant pipes In case of using the existing pipes for R22 be careful with the followings sure to clean the pipes and make sure that the insides of the pipes are clean Change flare nut to the one provided with this product Use a newly flared pipe Avoid using thin pipes Make sure that the inside and outside of refrige rant piping is clean and it has no contamination such as sulfur hazardous for use oxides dirt shaving particles etc In addition use pipes with specified thickness Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing Leave elbow joints etc in their packaging If dirt dust or moisture enter into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Use ester oil ether oil or alkylbenzene oil small amount as the refrigerant oil applied to flares and flange connections If large amount of mineral oil enter that can cause deterio ration of refrigerant oil etc Charge refrigerant from liquid phase
56. Remote Controller Diagnosis If the air conditioner cannot be operated from the remote controller diagnose the remote controller as explained below D First check that the power on indicator is lit If the correct voltage DC12 V is not supplied to the remote controller the indicator will not light If this occurs check the remote controller s wiring and the indoor unit Power indicator 2 Switch to the remote controller self diagnosis mode Press the FILTER button to start self diagnosis Pressthe CHECK button for5 seconds more The display content will change as shown below SELF SELF EN OI ZEE or 1 3 Remote controller self diagnosis result When the remote controller is functioning correctly When the remote controller malfunctions Error display 1 NG flashes gt The remote controller s transmitting receiv ing circuit is defective Check for other possible causes as there is no problem with the remote controller Where the remote controller is not defective but cannot be operated Error display 2 6833 or 6832 flashes Transmission is not possible Error display 3 ERC and the number of data errors are displayed Data error has occurred SELFCHECK E SELF S 00DE e CRE There might be noise or interference on the transmission pat
57. TION A PDF 8 Distributed in Apr 2006 No OC379 PDF 8 Made in Japan
58. all valve and D Open ball valve and stop valve Abnormal if connector 63L is open liquid pipe side stop valve 99 the power off and on again to under 0 03MPa during compressor oper shut during operation check if F3 is displayed on restarting ation Disconnection or contact fail If F3 is displayed follow the F3 process ure of connector 63L on out ing direction door controller board 5 Leakage or defective of refrigerant UL 9 Disconnection or contact fail 6 Check linear expansion valve 1300 ure of 63L Refer to 11 6 Defective outdoor controller board 5 Leakage or defective of refrig erant 9 Defective action of linear expansion valve 34 Note E1 E2 and 4 to E7 refer to indoor unit service manual Meaning of error code and detection method Judgment and action D Check compressor Refer to 6 2 Check indoor unit and repair defective Abnormal compressor Clogged indoor filter 9 Open phase compressor Compressor over current start up UF locked breaking 4100 Abnormal if compressor current exceeds 1 2 times of overload set value UH 5300 EO No display Current sensor error Abnormal if compressor current is not detected on first compressor start up after power supply is turned on Remote controller communication error Signal receiving error 1 Abnormal if any signal from IC of refrig erant address 0 could not normally received fo
59. ation is complete make sure that a mark etc is given in the Check column of Table 1 to indicate the change 12 1 2 Selecting functions using the wireless remote controller Type C Functions can be selected with the wireless remote controller Function selection using wireless remote controller is available only for refriger ant system with wireless function Refrigerant address cannot be specified by the wireless remote controller Flow of function selection procedure The flow of the function selection procedure is shown below This example shows how to turn off the function that raises the set temperature by 4 degrees during HEAT operation pcr The procedure is given after the flow chart CHECK Check the function selection setting Switch to function selection mode Troubleshooting mode is the mode entered when Enter address 50 in troubleshooting you press the INSPECT button twice to display mode then press the HOUR button INSPECT nit No 01 since the function applies to unit 01 ON OFF TEMP Specify u Set address 01 while still in troubleshooting mode then press the MINUTE button Note You cannot specify the refrigerant address Select mode 24 function that raises set temperature by 4 degrees during HEAT operation MODE AUTOSTART Set address 24 while still in troubleshooting mode then press the HOUR button
60. being switched Not an error This sound is emitted when the air conditioner outdoor unit starts operating Not an error This sound is caused by the blower air volume control that the outdoor unit performs to maintain the optimum operation Status 41 expels odours that have been absorbed from the walls carpets furniture or clothing This may occur just after the unit is turned on when a high level of humidity is present in the room This occurs to expel water or mois ture that may have collected in the pipes or around piping fixtures This occurs to dispel water from the heat exchanger Turn on the power switch will be displayed A white mist is expelled from the indoor unit Water or moisture is expelled from the outdoor unit The indicators of the remote con troller do not light up when oper ated CENTRALLY CONTROLLED indi cator is displayed in the remote controller The start and stop function of the remote controller are not available when the CENTRALLY CON TROLLED indicator is displayed Wait about three minutes opera tion has stopped to prevent dam age to the air conditioner The start and stop functions are not available just after restarting the unit Not an error During the DRY operation blower ON OFF is controlled by a micro processor to prevent overcooling and to ensure efficient dehumidifi cation The fan speed can t be set by the remote controller during DRY operat
61. bnor mality 2 Set one of the remote controllers if outdoor LED is E4 while EO is displayed at remote controller of indoor units Remote controller communication error Defective communication cir Transmitting error cuit of remote controller 1 Abnormal if sub remote controller could Noise has entered transmis not find blank of transmission path for 6 sion wire of remote controller No display seconds 9 Two or more remote 2 Abnormal if remote controller could not trollers are set as main finish transmitting 30 times continuous ly D Check disconnection or looseness of indoor outdoor unit connecting wire of indoor or out door units Turn the power off and on again to check Replace indoor controller board or outdoor controller board if abnormality is displayed again Contact failure of indoor out door unit connecting wire Indoor outdoor unit communication error Signal receiving error Outdoor unit 9 Defective communication cir 1 Abnormal if outdoor controller could not cuit of indoor controller board receive anything normally for 3 minutes Defective communication cir cuit of indoor controller board Noise has entered indoor out door unit connecting wire Indoor outdoor unit communication Defective communication circuit COGO Turn the power off and on again to error Transmitting error of outdoor controller check Replace outdoor
62. ce using a tester Winding temperature 20 C Gray Black Gray Red Gray Yellow Gray Orange Open or short 46 30 Measure the resistance between the terminals using a tester Surrounding temperature 20 1450 1500 Open or short Measure the resistance between the terminals using a tester P71 P100 P125 P140 Open or short 23040 7796 44 2 11 7 HOW TO CHECK THE COMPONENTS lt Thermistor feature chart 50 Low temperature thermistors Thermistor Outdoor pipe TH3 Thermistor Outdoor 2 phase pipe TH6 A O Q Thermistor RO 15 3 B constant 3480 2 CO 1 1 Rt 215exp 3480 2734t 273 15 30C 4 3kQ 10C 9 6kQ 40 C 3 0kQ 20C 6 3kQ 25 5 2 10 Resistance 20 10_0 10 20 30 40 50 Temperature C High temperature thermistor 500 Thermistor Discharge TH4 Thermistor R120 7 465kQ 2 400 B constant 4057 2 NEN Rt 7 465 4057 27341 393 5 lt 300 20 250kQ 70 34 30C 160kQ 80 24 S 40C 104kQ 90C 17 5 2 50
63. center wire has no cover finish 2 From left to right 51 52 53 1 In case that cable with stripe of yellow and green is available 2 In the flat cables are connected as this picture they can be used to 80m lt Flat cable x 2 61 S2 S3 Clockwise 51 52 53 Not Clockwise 51 52 53 Connect S1 and S3 to the opposite angle 3 In case of regular polarity connection S1 S2 S3 wire size is 1 5mm 4 In case of regular polarity connection 51 52 53 5 Mentioned cable length is just a reference value It may be different depending on the condition of installation humidity or materials etc Wire No x Size mm Outdoor power supply Indoor unit Outdoor unit 3 X 1 5 polar 3 x 2 5 polar 3 X 2 5 polar and S3 separated Indoor unit Outdoor unit earth 1 x Min 1 5 1 x Min 2 5 1 x Min 2 5 The Max cable length may vary depending on the condition of installation humidity or materials etc Indoor Outdoor separate Wire No x Size mm power supply Max 120m Indoor unit Outdoor unit 2 Min 0 3 he optional indoor power supply terminal kit is necessary Be sure to connect the indoor outdoor connecting cables directly to the units no intermediate connections Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point If an in
64. conditions Tools for other refrigerants be used 5 OOOO O O 125 PU P140YHA UK PUH P125YHA UK PUH P140YHA UK PU P71VHAq UK _ 71 PU P71YHAq UK PUH P71YHAq UK PU P100VHAq UK PUH P100VHA 1 UK PU P100YHA UK PUH P100YHA 1 UK CHARGELESS SYSTEM PRE CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT Max 30m The refrigerant circuit with LEV Linear Expansion Valve and Accumlator always control the optimal refrigerant level regardless of the length 30m max and 5m min of piping The additional refrigerant charging work during installation often causes problems Heretofore it is completely eliminated This unique system improves the quality and reliability of the work done It also helps to speed up the installation time 5 SPECIFICATIONS Power supply phase cycle voltage External finish Munsell 5Y 7 1 Refrigerant control Compressor 4 kW 2 7 Protection devices V Internal thermostat Y Thermal relay HP switch HP switch Discharge thermo Discharge thermo 25 Heat exchanger Fan Fan drive x No Fan motor output kW 0 110 Airflow m min CFM 65 2290 Defrost method Noise level 50 52 Dimensions mm
65. connected wire from the electrical parts box Diagram symbol in the connector housing Valve bed Fan motor Linear expansion valve CNLEV Thermistor Discharge TH4 Thermistor Outdoor 2 phase pipe Outdoor pipe TH3 TH6 Crankcase heater CH High pressure switch 63H Solenoid valve coil Four way valve 2154 Cover panel fixing screws m Terminal block 5 Disconnect the compressor relay connector 6 Remove 2 electrical parts box fixing screws 4 10 ai Pia panel detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right Removing the thermistor Outdoor 2 phase pipe TH6 Photo 4 Thermistor and thermistor lt outdoor pipe gt TH3 Outdoor 2 phase pige gt TH6 1 Remove the service panel See figure 1 E S 2 Remove the top panel See figure 1 3 Disconnect the connector 3 6 on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire of the electrical parts box 5 Pull out the thermistor Outdoor 2 phase pipe TH6 and thermistor outdoor pipe TH3 from the sensor holder Note In case of replacing thermistor Outdoor 2 phase pipe TH6 replace it together with thermistor Outdoor pipe TH3 since they are combined together Electrical Thermistor parts box Outdoor pipe TH3 5
66. controller board Outdoor unit 2 Noise has entered power supply if abnormality is displayed again 1 Abnormal if 0 receiving is detected 30 9 Noise has entered indoor E9 times continuously though indoor con outdoor unit connecting wire 6841 troller has transmitted 1 Indoor outdoor unit connecting wire has contact failure Defective communication circuit between indoor and outdoor unit on indoor controller board 2 Abnormal if outdoor controller could not find blank of transmission path for 3 minutes 35 Meaning of error code and detection method Judgment and action Noise has entered transmis sion wire of remote controller 2 Noise has entered indoor outdoor unit connecting wire Not defined error code This code is displayed when not defined error code is received Serial communication error Abnormal if communication between outdoor controller circuit board and M NET board is not available M NET communication error Meaning of error code and detection method 0 6600 A2 6602 A3 6603 A6 6606 Address duplicate definition This error is displayed when transmission from the units of same address is detect ed Note The address and attribute displayed at remote controller indicate the con troller that detected abnormality Hard ware error of transmission Pline Transmission processor intended to trans mit 0 but 1 appeared on transmission wire Not
67. controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box 5 Pull out the thermistor lt Outdoor 2 phase pipe gt TH6 from the sensor holder Note In case of replacing thermistor lt Outdoor 2 phase pipe gt TH6 replace it together with thermistor lt Outdoor pipe gt TH3 since they are combined together Refer to No 5 below to remove thermistor lt Outdoor pipe gt Electrical parts box 5 Removing the thermistor lt Outdoor pipe gt TH3 and thermistor lt Discharge gt TH4 Photo 5 Thermistor 1 Remove the service panel See figure 1 lt Outdoor pipe gt 2 Disconnect the connectors TH3 TH6 red and TH4 white on the controller circuit board in the electrical parts box 3 Loosen the clamp for the lead wire 4 Pull out the thermistor Outdoor pipe TH3 and thermistor Discharge TH4 from the sensor holder Note In case of replacing thermistor Outdoor pipe TH3 replace it together with thermistor Outdoor 2 phase pipe TH6 since they are combined together Refer to No 4 above to remove thermistor Outdoor 2 phase pipe Thermistor Discharge H4 72 2 PROCEDURE 5 6 Removing the solenoid valve coil Four way valve 2154 Photo 6 linear expansion valve coil LEV and eee re eae solenoid valve coil lt Bypass valve gt SV fixing screw 1 Remove the s
68. d d u AT 125 ING FOR INUOUS APPROXIM THR HEA CO NOIS 63 1 5m T PUH P140YHA 1 UK 140 MICROPHONE 11 6 4 STANDARD OPERATION DATA PLA RP71AA PLA RP100AA2 PLA RP125AA2 PLA RP140AA2 ne m m m m 2 A o ow _ i PUH P71VHA PUH P100VHA Outdoor unit PUH P71YHA PUH P100YHA PUH P125YHA PUH P140YHA 13 50 13 50 230 400 290400 40 aoo Amperes 03 4 2911 98 4 2815 07 5 39 14 48 5 feet ee 8 55 8 45 JP 2 99 2 55 3 16 2 67 500 257 3 05 3 68 Discharge pressure 30 4 26 0 32 2 27 2 30 6 31 1 37 5 Suction pressure 8 0 5 4 9 3 7 5 7 7 9 6 6 2 Discharge temperature C 76 9 85 1 78 2 78 1 78 0 82 4 Suction temperature 95 Ref pipe length Intake air temperature 15 Discharge air temperature oes 44 5 as Intake air temperature c 2 Dec o qon _ The unit of pressure has been changed to MPa based on international SI system The conversion factor is 1 MPa 10 2 kgf cm Electrical circuit GO J gt O O c 4 u c y 19 15 42 2 Indoor side 11 2 35 46 1 N E Outdoor side 0 70 0 08 13 4 0 78 N IN 12 2 em am
69. door unit communication error P6 Freezing overheating protection is working Noemorhisry SSS P8 Abnommalilyofpipetemperaure 7 FFFF Noappledunt O P9 Abnormality of pipe temperature hermistorCond Eva SSS Fb Abnormality ofindoor See the table below for details of the LED display LED 1 2 3 on the indoor controller board LED1 microcomputer power supply Lits when power is supplied Lits when power is supplied for wired remote controller LED2 remote controller The indoor unit should be connected to the outdoor unit with address 0 setting LED3 indoor outdoor communication Flash when indoor and outdoor unit are communicating 25 Test run for wireless remote controller Measure an impedance between the power supply terminal block on 4 MITSUBISHI ELECTRIC the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1 0MQ D Turn on the main power to the unit 2 Press the E button twice continuously Start this operation from the status of remote controller display turned off A and current operation mode are displayed 9 Press the en button to activate mode then check whether cool air is blown out from the unit 4 Press the E xoc xc button to activate exo mode then check whether warm air is blown out from the unit 5 Press the b
70. e The address and attribute display at remote controller indicate the con troller that detected abnormality BUS BUSY 1 Over error by collision damage Abnormal if transmitting is not possible for 8 10 minutes continuously because of collision of transmission Data could not reach transmission wire for 8 10 minutes continuously because of noise or etc Note The address and attribute displayed at remote controller indicate the con troller that detected abnormality Communication error with communica tion Pline Defective communication between unit processor and transmission processor Note The address and attribute display at remote controller indicate the con troller that detected abnormality Breaking of wire or contact failure of connector between outdoor controller circuit board and M NET board Contact failure of M NET board power supply line 3 Noise has entered into M NET transmission wire Turn the power off and on again to check Replace indoor controller board or outdoor controller board if abnormality is displayed again D Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board and M NET board CN5 2 Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board CNMNT and M NET board CND Check transmission wiring method Note Indoor unit in the text
71. e controller DEFROST operation is being per Find out if the remote controller formed to melt this frost The was used DEFROST operation ends after Is the CENTRALLY CON about 10 minutes 15 minutes TROLLED indicator displayed maximum Find out if the remote controller During the DEFROST operation was used the indoor unit s heat exchanger Is the automatic cooling heating becomes cold so the blower is mode selected stopped The up down vane is Press the start stop button to stop automatically set to horizontal the unit blow When the DEFROST opera The unit stopped even though the 15 the timer on tion ends the unit switches to the start stop button was not pushed Press the start stop button to HEAT SETUP operation restart the unit Was a distant command sent from An error code is displayed in the self diagnostic function is being the remote controller remote controller performed to preserve the air con Find out if the remote controller ditioner was used Do not attempt to make repairs Is the CENTRALLY CON yourself Turn the main switch off TROLLED indicator displayed and contact the dealer from Find out if the remote controller whom you bought the air condi was used tioner Provide him or her with The remote controller s timer can the name of the unit and the 7 information displayed in the PLEASE WAIT is displayed in An automatic startup test is being remote controller the remote controlle
72. eater Outdoor unit power supply The optional indoor power supply terminal kits are required Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit outdoor unit connecting cords Remote controller Indoor unit Option Indoor unit power supply Indoor unit model RP35 140 Indoor unit power supply N single 50 Hz 230 V Indoor unit input capacity 16A Main switch Breaker Indoor unit power supply 2x Min 1 5 Indoor unit power supply earth 1 1 5 Indoor unit Outdoor unit 2 2 Min 0 3 Indoor unit Outdoor unit earth 40 0 O AC 230 V Indoor unit Outdoor unit S1 S2 A Md 1 A breaker with at least 3 mm contact separation in each pole shall be provided Use non fuse breaker NF or earth leakage breaker NV 2 Max 120m 9 The 10 m wire is attached in the remote controller accessory 500 m 4 The figures are NOT always against the ground Wiring Wire No size mm Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and indoor unit outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 60245 IEC 57 3 Install an earth longer than other cables If the indoor and outdoor units have separate power supplies refer to the table below Change the indoor unit electrical box wiring referring to the figure in the right and the Jumper wire JB sett
73. ed current specified in the table below under the following condi tion Ui Condition For PU PUH P71 P100V Current detector CT has detected a current which is lower than the detected current specified in the table below for 0 7 0 8 second For PU PUH P71 P140Y Current detector CT has detected a current which is lower than the detected current specified in the table below for 0 4 0 5 second Detected current Abnormal high discharging temperature Over heated compressor oper Check intake super heat Abnormal if discharging temperature ther ation caused by shortage of Check leakage of refrigerant mistor TH4 exceeds following tempera refrigerant Charge refrigerant ture during compressor operation 2 Defective operation of stop Check if stop valve is full open U2 1102 Normal operation 115 C P71 P100 valve 3 Turn the power off and check if 03 is dis 125 C P125 P140 Defective thermistor played when the power is turned on again or more for three min Defective outdoor controller When is displayed refer to Judgement utes continuously or board and action for U3 135 C Defective action of linear 9 Check linear expansion valve During defrosting 135 expansion valve Refer to 11 6 Abnormal shortage of refrigerant D Leakage or shortage of refrig Check leakage of refrigerant Abnormal if intake super heat exceeds fol erant Charge refrigerant lowing temperature dur
74. emperature setting odour is detected the room This is caused when the unit C adjust it if necessary Increase the space surrounding the outdoor unit Is the air intake or air outlet blocked Is a window or door open The unit is preparing to deliver warm air Frost forms when the outdoor tem perature is low and humidity is high Wait for about 10 minutes for the frost to melt After 1 hour of cooling mode oper ation with the airflow in a down ward direction the unit will auto matically change to the Horizontal air flow mode This is to prevent any moisture that may have col lected from dripping When the unit is in the heating or defrosting mode it will automati cally change to the Horizontal air flow mode The vanes will go through a test run before they situate into the specified angle 1 Check whether the vane has been set to a fixed position check whether the vane motor connector has been 2 Check whether the unit has a function for switching the air direc tion If the unit doesn t have this function FUNCTION DOESN T EXIST appears when you press the remote control s UP DOWN VANE or LOUVER button The vanes will go through a test run before they situate into the specified angle This sound is made when refriger ant inside of the unit is flowing or refilling Not an error This sound is caused by the flow of the refrigerant in the air conditioner
75. ervice panel See figure 1 2 Remove the top panel See figure 1 3 Remove the electrical parts box See photo 3 Removing the solenoid valve coil lt Four way valve gt 4 Remove solenoid valve coil lt Four way valve gt fixing screw M4 X 6 5 Remove the solenoid valve coil Four way valve by sliding the coil toward you 6 Disconnect the connector 2154 green on the controller board in the electrical parts box Removing the linear expansion valve coil 4 Remove the linear expansion valve coil by sliding the coil upward 5 Disconnect the connector CNLEV white on the controller circuit board in the electrical parts box Removing solenoid valve coil Bypass valve gt 4 Remove the solenoid valve coil Bypass valve fixing screw M5 X 6 b Remove the solenoid valve coil Bypass valve by sliding the coil upward 6 Disconnect the connector SV black on the controller circuit board in the electrical parts box Solenoid valve coil Solenoid coil Four way valve lt Bypass valve gt lt Four way valve gt SV 7 Removing the four way valve 2154 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 X 16 and then remove the valve bed 4 Remove 4 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side pane
76. es during this procedure exit function selection see step 00 and then restart from step Set the indoor unit number Press the 2 CLOCK buttons and CA to select the unit number Press the ON OFF button flashes inthe unit number display of the indoor unit for which you want to perform function selection The unit ated number changes to 00 01 02 03 04 and AL each time a button is pressed U it b 17 S nn p nit number E TN 411 77 14141 display section LIII T ZN 777 777 e To set modes 01 to 06 or 15 to 22 select unit number 00 When the refrigerant address and unit number are confirmed by pressing To set modes 07 to 14 or 23 to 28 carry out as follows To set each indoor unit individually select 01 to 04 MODE button the corresponding indoor unit will start fan operation This To set all the indoor units collectively select AL helps you find the location of the indoor unitfor which you wantto perform function selection However if 00 or is selected as the unit number all the indoor Confirm the refrigerant address and unit number units corresponding to the specified refrigerant address will start fan operation Press the MODE button to confirm the refrigerant address and unit number Example When the refrigeran
77. f abnormality is displayed again Check the indoor outdoor unit connecting wire amp Inspect transmission line to solve the problem C Wire the remote controller to one of the mul tiple indoor units Set the refrigerant address of outdoor units with different number starting from 0 9 Unless the wire has contact failure discon nect CN2S on indoor power supply board to measure the voltage When CN2S does not have a current of DC12V to DC16V replace the indoor power supply board The descriptions above for EA Eb and EC D Check disconnection looseness or breaking of connecting wire between outdoor con troller board CN1 and M NET p c board CN5 2 Check departure or looseness of M NET p c board power supply line CND TB1 Replace M NET p c board 2 Replace outdoor controller board 2 Meaning of error code and detection method Judgment and action Abnormal high pressure High pressure Short cycle of indoor unit 9 6 Check indoor unit and repair defectives switch 63H worked Clogged filter of indoor unit Check full open stop valve Abnormal if high pressure switch 63H 9 Decreased airflow caused by Check piping and repair defectives worked more than 4 14 MPa during com dirt of indoor fan 9 0 Check indoor unit and repair defectives pressor operation 2 Dirt of indoor heat exchanger 9 40 Turn the power off and check UH display 63H High pressure switch 5 Locked ind
78. f connector TH3 TH6 on thermistor or outdoor Condenser of connector TH3 TH6 on the the indoor controller board Evaporator pipe thermistor TH6 indoor controller board Refer to 11 7 Abnormal if open 39 or less or short 2 Defective thermistor Check breaking of the lead wire for thermistor 88 C or more is detected during com 9 Defective outdoor controller THS TH6 Refer to 11 6 pressor operation board 2 Check resistance value of thermistor Detection is inoperative for 7 minutes after Refer to 11 6 or check temperature by 10 seconds of compressor starting and for microcomputer Mode switch of SW2 10 minutes after defrosting Replace outdoor controller board Compressor over current overload D Gas pipe side ball valve and D Open ball valve and stop valve breaking liquid pipe side stop valve are Check or replace compressor Abnormal if current value exceeds over shut during operation Refer to 6 2 U6 load set value during compressor opera 2 Abnormal compressor 9 Check power supply voltage 4101 tion 3 Abnormal power supply voltage Check short cycle P71V 23 5 71 7 8A Overload operation 100 28 5 P100Y 9 4A P125Y 12 6A P140Y 15 6A Thermal relay 51C worked D Ball valve and stop valve are D Open ball valve and stop valve Abnormal if 51C is open closed during operation Check or replace compressor UA 2 Abnormal compressor Refer to 6 2 Abnormal power supply volt
79. f defective transmission processor hard ware 36 Judgment and action Search the unit with same address as abnor mality occurred If the same address is found shut of the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more after the address is corrected and turn the power on again Check transmission waveform or noise on transmission wire If the works of transmission wire is done with the power on shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again 2 Check transmission waveform or noise transmission wire 0 Check if transmission wire of indoor unit FRESH MASTER LOSSNAY or remote controller is not connected to terminal block for central control TB7 of outdoor unit 2 Check if transmission wire of indoor unit FRESH MASTER or LOSSNAY is not connected to terminal block for transmission wire of outdoor unit 9 Check if terminal block for transmission wire and terminal block for central control TB7 is not connected 4 Check transmission waveform or noise transmission wire Turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and put the power on again System returns nor mally if abnormality was accidental malfunction If the same abnormality ge
80. f the connector of TH3 on outdoor controller board is disconnected 4 blinks 5 5 overcurrent Overload D Check if ball valves are open Thermal relay 51C has been tripped Measure resistance values among terminals on compressor Overcurrent has locked the operation of by using a tester 3 blinks Protection from overheat operation TH3 D Check if outdoor unit has a short cycle on its air duct compressor in start up 3 Check if outdoor unit has a short cycle on its air duct 4 Check if the connector of 51CM 51 on outdoor controller board is disconnected 5 Check if the units get their heat exchanger and filter dirty and clogged 5 blinks Open short circuit of discharge thermistor TH4 Check if the connectors of TH4 TH3 and TH6 on outdoor Open short circuit of liquid pipe thermistor TH3 controller board are disconnected short circuit of EVA COND pipe 2 Measure the resistance values of each thermistor thermistor TH6 and TH6 4 blinks 1 blinks of room temperature thermistor CO Check if the connectors of CN20 CN21 and CN29 Indoor unit side TH1 indoor controller board are disconnected of Liquid pipe thermistor 2 Measure the resistance values of each thermistor Indoor unit side TH2 TH1 TH2 and TH5 Abnormality of EVA COND pipe thermistor Indoor unit side TH5 2 blinks Abnormal
81. for new refrigerant 2 Additional refrigerant charge When charging directly from cylinder Check that cylinder for R410A on the market is syphon type Charging should be performed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant ep Specification Gauge manifold Only for R410A Use the existing fitting specifications UNF 1 2 Use high tension side pressure of 5 or over Charge hose Only for R410A Use pressure performance of 5 09MPa G or over Electronic scale Gas leak detector Use the detector for R134a R407C or R410A Adaptor for reverse flow check Attach on vacuum pump Refrigerant cylinder Only for R410A of cylinder Pink Cylinder with syphon Refrigerant recovery equipment 2 2 Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series Although the refrigerant piping work for R410A is same as for R22 exclusive tools are necessary so as not to mix with different kind of refrigerant Furthermore as the working pressure of R410A is 1 6 time higher than that of R22 their sizes of flared sections and flare nuts are different of pipes Because the working pressure of R410A is higher compared to R22 be sure to use refrigerant piping with thickness shown below
82. gnal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the setting number Repeat steps and to make an additional setting without changing unit number Repeat steps to to change unit number and make function settings on it Complete the function settings Press button Do not use the wireless remote controller for 30 seconds after completing the function setting 64 12 2 FUNCTION SELECTION OF REMOTE CONTROLLER The setting of the following remote controller functions can be changed using the remote controller function selection mode Change the setting when needed Item 1 Item 3 Setting content 1 Change Language Language setting to display Display in multiple languages is possible CHANGE LANGUAGE 2 Function limit 1 Operation function limit setting operation lock LOCKING FUNCTION Setting the range of operation limit operation lock 1 FUNCTION SELECTION 2 Use of automatic mode setting SELECT AUTO MODE Setting the use or non use of automatic operation mode 3 Temperature range limit setting LIMIT TEMP FUNCTION Setting the temperature adjustable range maximum minimum 3 Mode selection 1 Remote controller main sub setting CONTROLLER MAIN SUB Selecting main or sub remote controller MODE SELECTION When two remote controllers are connected to one group one controller must be set to sub 2 Use of cloc
83. h or the indoor unit The number of data errors is the difference between the number of bits sent from or other remote controllers are defective Check the transmission path and other the remote controller and the number actually transmitted through the transmis controllers sion path If such a problem is occurring the transmitted data is affected by noise etc Check the transmission path s When the number of data errors is 02 Transmission data from remote controller nini Transmission data on transmission rii mui 4 To cancel remote controller diagnosis Press the CHECK button for 5 seconds or more Remote controller diagnosis will be cancelled PLEASE WAIT and operation lamp will flash After approximately 30 seconds the state in effect before the diagnosis will be restored 28 2 11 3 4 Malfunction diagnosis method by wireless remote controller In case of trouble during operation When a malfunction occurs to air conditioner both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop Malfunction diagnosis method at maintenance service Procedure 1 Press the CHECK button twice CHECK lights and refrigerant address 00 flashes display Check that the remote controller s display has stopped before continuing CHECK display 2 Press the temperature 3 Select the refrigerant address of the buttons
84. he operation fault vane is not downward Normal operation Working of COOL protection function During HEAT preparation A Vane motor resistance value check During defrosting B Disconnecting breaking and contact During compressor stop fault of the connector When setting the downward vane in the cool dry Stepping motor adopting model mode the vane changes to Horizontal position after 1 GN6V check hour AC timing motor adopting model Vane motor does mot rotate check A Vane motor fault C Check the setting details by selecting B Disconnecting breaking and contact fault of the the remote controller function connector Setting check of the indoor controller C Setting to no vane unit board J11 J15 SW1 Standard position reading fault Vane motor does not A Limited switch LS conductance check stop B Check the removing of indoor con A Limited switch fault troller board CN23 breaking line and B Disconnecting breaking and contact fault of the contact fault connector Only AC timing motor adopting mode No limited switch for stepping motor adopting model 39 Countermeasure Phenomena 7 Left right louver performance fault 8 Though the remote controller dis play is normal in cool mode the capacity is not enough 9 Though the remote controller dis play is normal in Heat mode the capacity is not enough Louver motor fault Disconnecting breaking
85. hundreds digit and tens unit digits are displayed by turns 100 times 123456 Example When 42500 times One second interval 4 25 Compressor integrating operation times 0 9999 0 9999 When the time is 100 or more the hundreds digit p and tens unit digits are displayed by turns E M m Example When 2450 hours 10 hours 123456 One second interval 2 45 Compressor operating current 0 40 ON 0 40 123456 LEV opening 0 500 ON 0 500 Pulse 123456 New error postponement code No postponement code is 00 ON New outdoor unit error postponement bling during new error postponement display light new error Code display 123456 Operation mode on error occurring Operation mode on error stop 517 SW setting is displayed at below code SW2 ON Code 123458 display 123456 53 SW setting Display detail Explanation for display 40 90 When the coil thermistor is OC and less ON 123456 ON 123456 ON 123456 ON 123456 ON 123456 1 123456 123456 Piping temperature on error occurring 40 90 Compressor temperature 4 or discharge temperature TH4 on error occurring 0 216 Compressor operating current on error occurring 0 40 Error code history 1 latest Alternate display of abnormal unit number and code Error code history 2 Alternate display of error unit number
86. ignal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the unit number setting 9 Select a mode Press the temp button to set a mode Press 24 to turn on the function that raises the set temperature by 4 degree during heat operation Direct the wireless remote controller toward the sensor of the indoor unit and press the button The sensor operation indicator will flash and beeps will be heard to indicate the current setting number Current setting number 1 1 one second 2 2 beeps one second each 3 3 beeps one second each If a mode number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the mode number If the signal was not received by the sensor you will not hear beep or a double beep may be heard Reenter the mode number 5 Select the setting number Press the temp A button to select the setting number 02 Not available Direct the wireless remote controller toward the receiver of the indoor unit and press the button The sensor operation indicator will flash and beeps will be heard to indicate the the setting number Setting number 1 2 beeps 0 4 seconds each 2 2 beeps 0 4 seconds each repeated twice 3 2 beeps 0 4 seconds each repeated three times If a setting number that cannot be recognized by the unit is entered the setting will turn back to the original setting f the si
87. indicates M NET p c board in outdoor unit There two or more same address of controller of out door unit indoor unit FRESH MASTER or LOSSNAY Noise has entered into trans mission signal and signal was transformed D Error is detected if waveform is transformed when wiring works of transmission wire of outdoor unit indoor unit FRESH MAS TER or LOSSNAY are done or polarity is changed with the power on and transmission data collide each other 2 Defective transmitting receiv ing circuit of transmission processor Transmission data is changed by the noise on transmission Transmission processor could not transmit because short cycle voltage of noise and the like have entered into trans mission wire continuously 2 Transmission quantity has increased and transmission is not possible because there was wiring mistake of terminal block for transmission wire TB3 and terminal block for central control TB7 in outdoor unit Transmission are mixed with others and occupation rate on transmission wire rose because of defective repeater a function to connector or disconnect transmission of control and central control system of outdoor unit then abnormality is detected Data of transmission proces sor or unit processor is not transmitted normally because of accidental trouble such as noise or thunder surge 2 Address forwarding from unit processor is not transmitted normally because o
88. ing Press Ending function display Press 9 and B at the same time The above procedure must be carried out only if changes are necessary 62 Operating Procedure Check the setting items provided by function selection If settings for a mode are changed by function selection the functions of that mode will be changed accordingly Check all the current settings according to steps to 2 fill in the Check column in Table 1 and then change them as necessary For factory settings refer to the indoor unit s installation manual Switch off the remote controller 9 Set the outdoor unit s refrigerant address Hold down the FILTER C 2 mode is 15 to 28 and TEST Press the 2 CLOCK buttons v A to select the desired buttons simultaneously for atleast 2 seconds Will start to flash refrigerant address The refrigerant address changes from 00 to 15 This operation is not possible for single refrigerant systems and then the remote controller s display content will change as shown below Refrigerant address display section If the unit stops after flashed for 2 seconds or 88 flashes in the room temperature display area for 2 seconds a transmission error may have occurred Check to see if there are any sources of noise or interference near the transmission path Note If you have made operational mistak
89. ing heating com Defective operation of stop Check if stop valve is full open pressor operation valve not full open 90 Turn the power off and check if or U4 U2 70 C or more and indoor pipe con Defective thermistor TH4 is displayed when the power is put again 1501 denser evaporator temperature TH5 is TH5 TH6 When 03 or U4 is displayed refer to 35C or less Defective outdoor controller Judgement and action for U3 or U4 board Check linear expansion valve 9 Defective action of electric Refer to 11 6 expansion valve 33 Meaning of error code and detection method Judgment and action Open short circuit of discharging ther Disconnection or contact failure Check contact of connector TH4 on the mistor 4 of connector TH4 on the indoor controller board Abnormal if open 0 or less or short indoor controller board Refer to 11 7 U3 216 or more is detected during com 2 Defective thermistor Check breaking of the lead wire for thermistor 5104 pressor operation 9 Defective outdoor controller TH4 Refer to 11 6 Detection is inoperative for 5 minutes of board Check resistance value of thermistor compressor starting process and for 10 Refer to 11 6 or check temperature by minutes after defrosting microcomputer Mode switch of SW2 Replace outdoor controller board Open short circuit of the liquid pipe Disconnection or contact failure Check contact o
90. ings of the outdoor unit control board p Indoor unit specifications Indoor unit electrical box connector R r d connection change Label affixed near each wiring diagram Required for the indoor and outdoor units Outdoor unit jumper wire when using separate indoor unit outdoor unit power supplies only Jumper wire JB is cut Indoor unit power supplied from outdoor unit when shipped from factory If the indoor and outdoor units have separate power supplies change the connections of the connectors as shown in the following Bub e figure Connectors connections when shipped from the factory are for indoor unit power supplied from outdoor unit Indoor unit control board Connectors There are three types of labels labels A B and C Affix the appropriate labels to Indoorunit the units according to the wiring method control board Please turn on the power supply of the outdoor unit first Afterward please turn on Separate indoor unit outdoor unit power supplies the power supply of the indoor unit 19 9 3 INDOOR OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 227 IEC The cable length may vary depending on the condition of installation humidity or materials etc Cross section Wire size Number Polarity L m 5 of cable of wires mm Round So Flat Not applicable 2 5 3 applicable Because
91. ion Fan speed doesn t match set fan speed during DRY operation Sometimes no air comes out dur ing DRY operation Not an error 1 When the HEAT operation starts to prevent the unit from emitting cold air the fan speed is gradually increased from zero to the set speed in proportion to the temperature rise of the air emitted 2 When the room temperature reaches the set temperature and the outdoor unit stops the unit starts the LOW AIR operation 3 During the HEAT operation the DEFROST operation is performed to melt the frost adhering to the outdoor unit During the DEFROST operation the blower is stopped to prevent cold air coming from the indoor unit Fan speed doesn t match set fan speed during HEAT operation Sometimes no air comes out dur ing HEAT operation Not an error The blower operates to eliminate the residual heat in the heated air conditioner It stops after about 1 minute This operation is performed when operation is stopped with the electric heater ON Air sometimes comes out when operation is stopped after HEAT operation The unit started even though the 15 this timer on DEFROST is displayed no air adheres to the outdoor unit start stop button was not pushed Press the start stop button to stop comes out the unit when the outside air temperature the unit is low and the humidity is high Was a distant commend sent from This display indicates that the the remot
92. ion mode TEMP FUNCTION TEMP AUTO MODE ser dd g FET V ONTROLLER MAIN D D HERE D TIME 9 FF O Hold down the button and press the button for 2 seconds Press the operation mode button Press theTIMER MENU button Press theTIMER ON OFF button Dot display Operation lock setting is not used Initial setting value Operation lock setting is except On Off button Operation lock setting is All buttons The automatic mode is displayed when the operation mode is selected Initial setting value The automatic mode is not displayed when the operation mode is selected The temperature range limit is not active Initial setting value The temperature range can be changed on cooling dry mode The temperature range can be changed on heating mode The temperature range can be changed on automatic mode Automatic filter elevation panel up down operation mode Not necessary to set this mode Refer to OPERATION MANUAL of Optional Parts Panel for details on operation Fixed air flow direction mode Not necessary to set this mode Refer to OPERATION MANUAL of indoor unit for details on operation The remote controller will be the main controller Initial setting value The remote controller will be the sub controller The clock function can be used Initial setting
93. is time the up down vane is automatically set to horizontal blow When STAND is released the up down vane returns to the set ting specified by the remote con troller 42 2 for wireless remote controller Check the following table to see whether there is a simple solution to your problem Display reading Unit does not operate at all When POWER ON OFF button is main power on Then press pushed there is not beep and the POWER ON OFF button to nothing is displayed turn the unit on Main power fuse has blown Replace the fuse Outdoor units ground fault breaker Replace the ground fault breaker is open A power cut has occurred see Wait until power is restored then NOTE below press the POWER ON OFF button to turn the unit on Unit discharges air well but fails to Liquid crystal display indicates that Improper temperature setting After checking the temperature cool or heat the room well the unit operates setting Filters are clogged Clean the filter and resume opera tion Outdoor unit 5 intake or outlet is Remove the obstruction obstructed Unit does not start immediately Liquid crystal display indicates that Unit is waiting 3 minutes before Wait until the unit restarts automat ically The compressor may hesi tate resuming because a 3 minute resume prevention circuit is incor porated in the outdoor unit for pro tection of the compressor NOTE After a power cut the un
94. ise error will appear on the LED display of outdoor unit 0403 error will appear on the central control remote controller X Bad example Multi spot grounding of shield wire Central Power M NET M NET type M NET type 1 LUN outdoor unit outdoor unit M NET transmission wire O Good example 1 Single spot grounding of shield wire Central Power M NET M NET type type AUN SD outdoor unit outdoor unit O Good example 2 Single spot grounding of shield wire Central M NET type M NET type typ outdoor tt M NET transmission wire If there are more than two grounding spots on the shield wire noise may enter into the shield wire because the ground wire and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among grounding spots In case of single spot grounding noise does not enter into the shield wire because the ground wire and shield wire do not form one circuit To avoid communication errors caused by noise make sure to observe the single spot grounding method described in the installation manual 21 M NET wiring 1 Use 2 core x 1 25mm shield wire for electric wires Excluding the case connecting to system controller 2 Connect the wire to the M NET terminal block Connect one core of the transmission wire non polar to A terminal and the other to B Peel the shie
95. it will not restart automatically You will have to restart it by pressing the POWER ON OFF button on the remote controller If none of the above apply turn the main switch off and contact the dealer from whom you bought the air conditioner telling him the model name and the nature of the problem Do not try to fix the unit yourself In any of the following cases turn off the main power switch and contact your local dealer for service The operation lamp on the main unit flashes The switches do not work properly The circuit breaker trips frequently or the fuse blows frequently Water has accidentally been splashed into the unit Water leaks from the unit Something is accidentally dropped into the air conditioner An unusual noise is heard during operation The following do not indicate any malfunction Odours Smells such as tobacco or cosmetic odours may persist after they have been sucked into the unit Sound of liquid flowing inside indoor unit This can occur during or after operation and is simply the sound of refrigerant being circulated inside the unit Ticking sound coming from indoor unit This can occur when cooling or heating has just begun or has just stopped It is caused by the indoor unit shrinking or expanding slightly due to the change in temperature The CENTRALLY CONTROLLED indicator appearing on the LCD panel From time to time this message may come up on the LCD panel This
96. ity of drain sensor D Check if the connector of CN31 on indoor controller board Indoor unit side DS is disconnected eMalfunction of drain up machine 2 Measure the resistance value of drain sensor 9 Measure resistance values among terminals on drain up machine by using a tester blinks Abnormality of pipe temperature D Check if the connectors of CN20 CN21 and CN29 on indoor controller board are disconnected 2 Check if ball valves are open 8 Check if the wirings are correct on the connecting wires of indoor outdoor units 99 12 FUNCTION SETTING 12 1 UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set according to necessity using the remote controller The setting of function for each unit can only be done by the remote controller Select function available from the table 1 1 Functions available when setting the unit number to 00 Select 00 referring to setting the indoor unit number 1 functions below are available only when the wired remote controller is used The functions are not available for floor standing models Table 1 Function selections Initial setting when sent from the factory Remarks 0 Powerfalure ONE Lif automatic recover setting Indoor temperature Average data from each indoor unit detecting 1 Data from the indoor unit with remote controller Data from main remote controller LOSSNAY Not supported connectivity Supported Indoor u
97. k setting Setting the use or non use of clock function 3 Timer function setting WEEKLY TIMER Setting the timer type 4 Contact number setting for error situation CALL Contact number display in case of error Setting the telephone number 4 Display change 1 Temperature display setting TEMP MODE DISP MODE SETTING 3 Automatic cooling heating display setting AUTO MODE DISP C H Setting the use or non use of the display of Cooling or Heating display during operation with automatic mode Function selection flowchart Refer to next page 1 Stop the air conditioner to start remote controller function selection mode 2 Select from item1 gt 3 Select from item2 4 Make the setting Details are specified item3 gt 5 Setting completed 6 Change the display to the normal one End Detailed setting 4 3 Mode selection setting 41 1 CHANGE LANGUAGE setting 1 Remote controller main sub setting The language that appears on the dot display can be selected To switch the setting press the CO ON OFF button Press the button to change the language D Main The controller will be the main controller Japanese JP English GB German D Spanish E Sub The controller will be the sub controller Russian RU Italian 1 Chinese CH French 2 Use of clock setting 4 2 Function limit e To switch the se
98. l 5 Remove the solenoid valve coil Four way valve 6 Collect the refrigerant 7 Remove the welded part of four way valve Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 or more then braze the pipes so that the inside of pipes are not oxidized 8 Removing linear expansion valve 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 X 16 and then remove the valve bed 4 Remove 4 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side panel b Remove the linear expansion valve 6 Collect the refrigerant 7 Remove the welded part of linear expansion valve Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the linear expansion valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pip es are not oxidized 73 OPERATING PROCEDURE PHOTOS 9 Removing the bypass valve Photo 7 Solenoid valve coil 1 Remove the service panel See figure 1 rear of the u
99. ld wire twist the shield part to a string and connect it to S terminal qu Transmission Shield 3 In the system which several outdoor units are being connected the terminal wire part A B S on M NET terminal block should be individually wired to the other outdoor unit s terminal i e A to A B to B and S to S In this case choose one of those outdoor units and drive a screw to fix an ground wire on the plate as shown on the right figure 9 4 1 M NET address setting In A control models M NET address and refrigerant address should be set only for the outdoor unit Similar to Free Combo system there is no need to set the address of outdoor unit and remote controller To construct a central control system the setting of M NET address should be conducted only upon the outdoor unit The setting range should be 1 to 50 the same as that of the indoor unit in Free Combo system and the address number should be consecutively set in a same group Address number can be set by using rotary switches SARNY CAMPSA SW11 for ones digit and SW12 for tens digit which is located on the board of outdoor unit Switch digit Factory setting all addresses are set to 0 seing swi2 EN digit 2012 212 9 4 2 Refrigerant address setting In case of multiple grouping system multiple refrigerant circuits in one group indoor units should be connected by remote controller wiring TB5 and the refrigerant address needs to be
100. lve fixing screws 5 X 16 and then remove the valve bed b Remove 3 right side panel fixing screws 5 X 10 in the rear of the unit and then remove the right side panel 6 Remove the solenoid valve coil Four way valve See photo 6 7 Collect the refrigerant 8 Remove the welded part of four way valve Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 or more then braze the pipes so that the inside of pipes are not oxi dized 8 Removing the linear expansion valve Photo 7 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove the electrical parts box See photo 3 Linear expansion 4 Remove 3 valve bed fixing screws 4 X 10 and 4 ball valve coil LEV valve and stop valve fixing screws 5 X 16 and then remove the valve bed 5 Remove 3 right side panel fixing screw 5 X 10 in the rear of the unit and then remove the right side panel 6 Remove the linear expansion valve coil 7 Collect the refrigerant 8 Remove the welded part of linear expansion valve Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel S DAI Thermistor Note 3 When installing the linear expansion valve cove
101. m Controller circuit terminal block co RNa board O B 4 Remove all the following connectors from controller circuit board 1225 LL fan motor linear expansion valve thermistor Outdoor pipe thermistor Discharge thermistor Outdoor 2 phase pipe high pressure switch solenoid valve coil Four way valve and solenoid valve coil Bypass valve Then remove a screw 4 X 8 from the valve bad to remove the lead wire Pull out the disconnected wire from the electrical parts box Diagram symbol in the connector housing Fan motor MF4 Linear expansion valve CNLEV Thermistor Discharge TH4 Thermistor Outdoor 2 phase pipe Outdoor pipe TH3 TH6 Crankcase heater CH High pressure switch 63H Solenoid valve coil Four way valve 2154 Low pressure switch 63L Solenoid valve coil Bypass valve SV 5 Remove the terminal cover and disconnect the compressor lead wire 6 Remove an electrical parts box fixing screw 4 X 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right Cover panel fixing screws 71 OPERATING PROCEDURE PHOTOS 4 Removing the thermistor Outdoor 2 phase pipe TH6 Thermistor 1 Remove the service panel See figure 1 ae 2 phase pipe gt 2 Remove the top panel See figure 1 3 Disconnect the connector TH3 TH6 red on the
102. m dp be 2 18 8 BASS SON 81 15 RoHS PARTS LIST STRUCTURAL PARTS PUH P71VHA YHA UK PU P71VHA YHA UK _ PUH P100VHA YHA UK PU P100VHA YHA UK PUH P71VHA YHA UK PU P71VHA YHA UK PUH P100VHA YHA UK PU P100VHA YHA UK 07 NGC FLO HH ANS 2 Y gt 7 EG E E y SS 4 1242 Ver f FEN Cm S a a a E A 7 X 4 3 Q ty set TC PUH P PU P Remarks 71 100 _ D ded Part Name Specification 71 100 Drawing No n Unit Amount ___ _ 2 8 870 sow 3 e eso _ Ex 696 pASEASSY 00 7 120 MOTORSUPPORT _ 818 VANEBEDASSY 9 30 6 570 Eo 658 COVER PANEL FRONT 11 8570 em 656 covERPaNeL REAR 0000 12 0 57 ex 662 sIDEPANEL R 13 8570 eso J wieso eslas 188570 ew o _ 59 wem 17 81870 82 PUH P125YHA UK PUH P140YHA UK _ PU P125YHA UK PU P140YHA UK PUH P125YHA UK 140 PU P125YHA UK PU P140YHA 1 UK STRUCTURAL PARTS ring
103. mains for 6 minutes Failure in indoor control PCB or remote controller 9 Lighting Sang or lighting 3 When pressing the remote controller After cancelling to select function from the remote Normal operation operation switch the OPERATION controller the remote controller operation switch will display is appeared but it will be be not accepted for approx 30 seconds turned off soon 4 Even controlling by the wireless The pair number settings of the wireless remote Check the pair number settings remote controller no beep and not controller and indoor control PCB are mismatched Check the indoor controller board connec working Display is available on the Disconnecting of wireless receiving board and contact tor CN90 wireless remote controller failure Check the wireless receiving board con Factor of the above 1 nector CNB Check the details of above 1 5 When operating by the wireless operation for max 2 minutes after the power sup operation remote controller beep sound is ply ON heard without working Remote operation is prohibited Normal operation Remote controlling adaptor is connected to the indoor controller board CN32 Remote operation is prohibited by centralised con troller etc since it is connected to MELANS Check the details of above 2 Factor of the above 2 6 Uoward downward vane performance When the unit is as follows in the HEAT mode t
104. nerates again abnormality generated controller may be defec tive 2 Error Code Meaning of error code and detection method Case Judgment and action NO ACK Common factor that has no rela Always try the followings when the error 1 Transmitting side controller detects tion with abnormality source A7 occures abnormal if a message was transmitted The unit of former address but there is no reply ACK that a mes does not exist as address QD off the power supply of outdoor unit sage was received Transmitting side switch has changed while the indoor FRESH MASTER or LOSS detects abnormality every 30 seconds unit was energized NAY at the same time for 2 minutes or more 2 Extinction of transmission wire voltage and signal is caused by over range transmission and turn the power on again If malfunction was accidental the unit returns to normal Wire 2 Check address switch of abnormality gener Maximum distance 200 ated address Remote controller line 12m Check disconnection or looseness of abnor 3 Extinction of transmission wire mality generated Or abnormality detected voltage and signal is caused transmission wire terminal block and con by type unmatched transmis nector sion wire Check if tolerance range of transmission wire is not exceeded With shield wire Check if type of transmission wire is correct CVVS CPEVS or not With normal wire no shield VCTF VCTFK
105. nit and remove the right side panel b Remove the bypass valve solenoid coil See photo 7 6 Collect the refrigerant 7 Remove the welded part of bypass valve Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Solenoid valve coil Solenoid valve coil Four way valve Bypass valve Four way gt SV 2154 10 Removing the high pressure switch 63H Photo 8 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 Lead wire of high pressure switch 3 Remove the electrical parts box See photo 3 4 Remove 3 right side panel fixing screws 5 X 10 in the T NS rear of the unit and remove the right side panel 5 Pull out the lead wire of high pressure switch 6 Collect the refrigerant 7 Remove the welded part of high pressure switch Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 or more then braze the pipes so that the inside of pipes are not oxidized High pressure switch 63H 11 Removing the low pressure switch Photo 9 1 Remove the service panel See Photo 1 Lead wire of low pressure switch 2 Remove the top panel See Photo 1 High p
106. nit does not intake outdoor air through LOSSNAY Supported Indoor unit intakes outdoor air through LOSSNAY 240 0 Power supply 240V voltage Auto operating Auto energy saving operation ON mode Auto energy saving operation OFF temperature 3C When the compressor operates the humidifier also operates When the fan operates the humidifier also operates Change of Standard defrosting control For high humidit Meaning of Function setting mode02 indoor temperature detecting temperature ta No Average data of the ta A4 B 2 sensor on all the indoor units No2 the data of the sensor on the indoor unit that connected with remote controller 03 3 the data of the sensor ta C on main remote controller 2 Can be set only when the outdoor unit is an inverter type 60 2 Functions available when setting the unit number to 01 03 or AL 07 in case of wireless remote controller e When setting functions for an indoor unit an independent system set the unit number to 01 referring to setting the indoor unit number When setting functions for a simultaneous Twin Triple indoor unit system set the unit number to 01 to 03 for each indoor unit in case of selecting different functions for each unit referring to 42 setting the indoor unit number e When setting the same functions for an entire simultaneous Twin Triple indoor unit system
107. nt address approximately 3 seconds after being to be diagnosed selected and the self diagnosis process will begin Display self diagnosis results lt When there is error code history gt For the definition of each error code refer to the indoor unit s installation manual or service handbook Alternating Display Error code 2 or 4 digits Address 3 digits or unit number 2 digits When there is no error code history When there is no corresponding unit Reset the error history Display the error history in the diagnosis result display screen see step 1 SELF CHECK L ERRQR GODE ERRQR GODE 2 Zu 24 Mar rt L a m hi When the error history is reset the display will look like the one shown below ON OFF meen However if you fail to reset the error history the error content will be displayed again address or refrigerant address will flash ELF CHECE E 200 ERROR GORE 0 Cancel self diagnosis Self diagnosis can be cancelled by the following two methods B Press the CHECK button twice within 3 seconds gt Self diagnosis will be cancelled and the screen will return to the previous state in effect before the start of self diagnosis 9 Press the D ON OFF button gt Self diagnosis will be cancelled and the indoor unit will stop 11 3 3
108. oard remote controller The inferior phenomenon is and eic not reoccurring Re check the abnormal symptom 2 trouble shooting and ascertain the cause of the inferior phenomenon according to 11 5 Troubleshooting by inferior phenomena Not logged Continue to operate unit for the time being if the cause is not ascertained There is no abnormality concerning of parts such as electrical component controller board remote controller and etc 11 2 CHECK POINT UNDER TEST RUN 1 Before test run After installation of indoor and outdoor units piping work and electric wiring work re check that there is no refrigerant leak age loosened connections and incorrect polarity Measure impedance between the ground and the power supply terminal block L on the outdoor unit by 500V Megger and check that it is 1 or over Don t use 500V Megger to indoor outdoor connecting wire terminal block S1 52 53 and remote controller terminal block 1 2 This may cause malfunction Make sure that test run switch SW4 is set to OFF before turning on power supply Turn on power supply 12 hours before test run in order to protect compressor For specific models which requires higher ceiling settings or auto recovery feature from power failure make proper changes of settings referring to the description of Selection of Functions through Remote Controller Make sure to read operation manual before test
109. of gas cylinder If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered 1 Cautions for service Do not use refrigerant other than R410A If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that 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 Torque wrench Electronic refrigerant charging scale 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 Ventilate the room if refrigerant leaks during operation If refrigerant comes into contact with a flame poisonous gases will be released 1 Perform service after collecting the refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sure to use a filter drier
110. oor fan motor when the power is turned on again Use current sensor to detect work or amp Malfunction of indoor fan Follow the UH display if UH is displayed return of 63H motor 5 Check linear expansion valve valve Not full open Replace refrigerant U1 1302 Defective operation of stop Refer to 11 6 Clogged or broken pipe 9 Locked outdoor fan motor Malfunction of outdoor fan motor Short cycle of outdoor unit 2 Dirt of outdoor heat exchanger 9 Disconnection or contact failure of 63H connection Defective outdoor controller board 5 Defective action of liner expan sion valve Refrigerant overcharge Abnormal low current or open phase D Shortage of refrigerant D Check if refrigerant pressure is not degraded e An extreme degradation of current value 2 Abnormal pressure degrada 2 Check current of compressor operation when causes abnormal stop tion by pump down operation abnormality occurred Abnormal if current detected phase V V phased open phase of com 9 Check wiring of compressor phase is open phase after first compres pressor sor start up after supplying the power Abnormal compressor Check or replace compressor three phase power supply model Not abnormal if V is instantly e When compressor is operating compres displayed when the main sor is suspended under the following power is off condition and when current detector CT detects a current which is lower than the detect
111. oor unit 00 is displayed 39 88 When the temperature is 0 or less temperature are displayed by turns When no indoor unit 00 is displayed and and and Display function of inspection for outdoor unit gt blinking patterns of two LEDs LED1 Green and LED2 Red show the diagnoses of troubles in case of malfunction By 7SEG indicator board indicates the operation mode and inspection types LED1 Green LED2 Red Indication O B Inspection method LED1 LED2 Green 1 blink 1 blink Negative phase detection D Check if the wires of power supply are connected to their wires of power supply and connecting corresponding terminals on TB1 wires of indoor outdoor units are crossed Check if the wirings are correct on power supply TB1 with one another outdoor power supply board TB2 2 blinks 51 connector open D Check if the connectors of 51CM 51 on Check the continuity of connector 51CM 51C by using outdoor controller board are disconnected tester connector open Check connection of 63L 63L connector on outdoor controller board 2 Check the 63L side of connecting wire 3 Check refrigerant pressure Charge additional refrigerant Check continuity by tester Replace outdoor controller board Replace outdoor controller board 2 blinks 1 blink Indoor outdoor unit connector mis wiring Check if the wi
112. overload condition 90 2 Jumper connector function table Switch Action by the switch operation ON OFF Effective timing With jumper wire Without jumper wire itch of single ph m ona Cooling only Heat pump When power supply ON O with jumper wire J3 x without jumper wire Setting J1 J2 Model 44 Capacity switch P7 OJ xu When power supply ON P4100 3 T J5 m oe qx P140 x x x O CN31 Emergency operation Emergency operation Normal When power supply ON When power supply ON separate inoor outdoor Ineffective Effective power supply 11 11 OPTIONAL PARTS A control Service Tool PAC SK52ST Function of switches Type of Action by the switch operation Effective timing switches ___ OFF 1 Changing of LED T DIP SW SW2 display Operation monitor Operation monitor s 4 suspension Self diagnosis Note Do not use CN33 51 Outdoor unit operation monitor function Operation indicator 2 Indicator change of self diagnosis SW setting Display detail Explanation for display ON Code indication 123456 Digital indicator LED1 working details Lighting Normal operation Indicating the operation mode SW2 Be sure the 1 to 6 in SW2 are set to OFF ON Initial settin 1 Display when the power supply ON 9 When the power supply ON blinking displays by turns 12345
113. parts are defective 4 Defective outdoor controller D Replace outdoor controller board board A failure of 51CM Replace outdoor controller board 3 Defective 51CM defective parts Defective outdoor controller 51CM connector open Disconnection or contact D Check connecting wire Abnormal if 51 CM connector circuit is open failure of 51CM connector 2 Check connecting wire for 3 minutes continuously after power on on outdoor controller board 9 Check continuity by tester F 51CM Thermal Relay Disconnection or contact Replace the parts if the parts are defective 4108 31 Error Code Meaning of error code and detection method Judgment and action EA 6844 Eb 6845 EC 6846 Ed 0403 Indoor outdoor unit connector mis wiring excessive number of units 5 units or more 1 Outdoor controller board can automati cally check the number of connected indoor units Abnormal if the number of connected indoor units can not be set within 4 minutes after power on because of mis wiring of indoor outdoor unit con necting wire and the like Abnormal if outdoor controller board rec ognizes the number of connected indoor units as 5 units or more Mis wiring of indoor outdoor unit con necting wire converse wiring or dis connection Outdoor controller board can automatically set the unit number of indoor units Abnormal if the indoor unit number can not be set within 4 minutes after po
114. r performed will last for about 2 minutes No display appears on the wire The batteries are becoming weak less remote controller Signals are Replace the batteries and press FILTER is displayed Indicates that it is time to clean the not received by the thin sensor reset button air filter Clean the air filter Press unless sent from close up If the display does not appear the FILTER button on the remote after replacing the batteries controller twice to make the dis make sure that the cells are play disappear aligned correctly See the instruction manual that came with the product for how to The operating display of the wire self diagnostic function is being clean the filter less remote controller s receiver is performed to preserve the air con ditioner STAND is displayed Displayed when the unit starts Do not attempt to make repairs HEAT operation when the air con yourself Turn the main switch off ditioning function puts the com and contact the dealer from pressor in operation mode or whom you bough the air condi when the outdoor unit ends tioner Provide him or her with DEFROST operation and returns the name of the unit to HEAT operation The display disappears after about 10 minutes STAND BY displayed on the remote controller indicates that the indoor unit s heat exchanger hasn t fully heated up so the blower air volume is restricted To prevent cold air from being felt at th
115. r 3 minutes 2 Abnormal if sub remote controller could not receive any signal for 2 minutes Disconnection or contact fail of connector 52 on out door controller board 2 Disconnection or contact fail ure of coil 52C 9 Defective outdoor controller board 2 Defective parts of 52C Compressor V phased wire does not penetrate through current detector O Defective communication cir cuit of remote controller 2 Defective communication cir cuit of indoor controller board of refrigerant address 0 3 Noise has entered transmis sion wire of remote controller All remote controllers are set as sub remote controller In this case E4 is displayed at outdoor LED and EO is dis played at remote controller 5 Wiring regulations are not observed of wires Number of remote controllers Diameter of wires 9 Check connection 70 Check connection Replace outdoor controller board 2 Check 52C Check wiring Diagnose remote controller Dispose as follows according to diagno sis result a When is displayed Remote controllers have no problem Turn the power off and on again to check If PLEASE WAIT is displayed for 4 minutes or more replace indoor controller board b When is displayed Replace remote controller c When or 00 66 is dis played noise may be causing a
116. r AANE TH3 it with a wet cloth to prevent it from heating 1 120 or more then braze the pipes so that the inside of pipes are not oxidized Thermistor TH6 69 OPERATING PROCEDURE PHOTOS 9 Removing the high pressure switch 63H Photo 8 Lead wire of 1 Remove the service panel See figure 1 high pressure switch 2 Remove the top panel See figure 1 3 Remove the electrical parts box See photo 3 4 Remove 3 right side panel fixing screws 5 X 10 in the rear of the unit and remove the right side panel 5 Pull out the lead wire of high pressure switch 6 Collect the refrigerant 7 Remove the welded part of high pressure switch Note 1 Collect refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 10 Removing the motor for compressor MC 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 2 front cover panel fixing screws 5 X 10 and remove the front cover panel See photo 3 4 Remove 2 back cover panel fixing screws 5 X 10 and remove the back cover panel b Remove the electrical parts box See photo 3 6 Remove 3 valve bed fixing screws 4
117. re displayed by turns Cool TH4 TH6 Example 115 C One second interval 10 15 Sub cool SC 0 130 0 130 When the temperature is 100 or more the hundreds digit and tens unit digits are displayed by turns Heat TH5 TH2 Communication demanded capacity 0 255 0 255 conn air conditioners When the capacity is 100 or more the hundreds connected to and digit and tens unit digits are displayed by turns under central control Example When 100 One second interval When no communication demanded 10 00 setting 100 is displayed Error thermistor display 3 Outdoor liquid piping thermistor TH3 6 Outdoor condenser thermistor TH6 When no error thermistor is displayed Fan step on error occurring 0 16 LEV opening on error occurring 0 500 Outdoor piping temperature Cond Eva 39 88 on error occurring TH6 When the thermistor is OC and less and 39 88 temperature are displayed by turns Example When 15 C One second interval 15 Discharge super heat on error occurring 0 255 SHd When the temperature is 100 or more the hundreds 0 255 digit and tens unit digits are displayed by turns Example When 150 Cool TH4 TH6 One second interval Heat TH4 TH5 1L1 50 Sub cool on error occurring SC 0 130 0 130 When the temperature is 100 or more the hundreds digit and tens unit digits are displayed by turns Cool
118. re outdoor units has refrigerant address 0 In case of group control Outdoor power supply board is defective Contact failure of indoor out door unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Noise has entered into power supply or indoor outdoor unit connecting wire Remote controller is wired up among indoor units twin triple or quadro units Two or more outdoor units has refrigerant address 0 In case of group control Breaking of wire or contact failure of connector between outdoor controller board and M NET p c board 2 Contact failure of M NET p c board power supply line Entrance of noise into trans mission wire 9 Defective transmitting receiv ing circuit of M NET p c board 5 Defective serial transmitting receiving circuit of outdoor controller board 32 D Check disconnection or looseness or polarity of indoor outdoor unit connecting wire of indoor and outdoor units 2 Check diameter and length of indoor outdoor unit connecting wire Outdoor indoor units interval maximum Indoor indoor units interval 30m maximum Also check if the connection order of flat cable VVF etc is 51 S2 53 Check the number of indoor units that are connected to one outdoor unit If EA is detected 20 Turn the power off and on again to check Replace outdoor controller board or indoor controller board i
119. reply ACK door unit power supply of one refrigerant system is off or within 2 minutes of restart abnormality is detected 2 Contact failure of transmission wire of remote controller or indoor unit 9 Disconnection of transmission connector CN2M of indoor unit 2 Defective trnamsitting receiv ing circuit of indoor unit or remote controller Continued to the next page 37 _ O From the previous page Meaning of error code and detection method Judgment and action A7 6607 A8 6608 5 If displayed address or attribute is FRESH MASTER Indoor unit detects abnormality when indoor unit transmitted to FRESH MAS TER and there was no reply ACK During sequential operation of indoor unit and FRESH MAS TER of other refrigerant sys tem if indoor unit transmits to FRESH MASTER while out door unit power supply of same refrigerant system with FRESH MASTER is off or within 2 minutes of restart abnormality is detected 2 Contact failure of transmission wire of indoor unit or FRESH MASTER Disconnection of transmission connector CN2M of indoor unit or FRESH MASTER 9 Defective transmitting receiv ing circuit of indoor unit or FRESH MASTER If the power supply of LOSS NAY is off indoor unit detects abnormality when it transmits to LOSSNAY During sequential operation of indoor unit and LOSSNAY of other refrigerant system if indoor unit transmits to LOSS NAY while outdoor unit po
120. ressure switch 63H 3 Remove the electrical box See Photo 3 E HA 4 Disconnect the lead wire of the low pressure switch hid BN 5 Remove the braze part of the low pressure switch dia y P e Note When installing the pressure switch cover the pressure switch with a wet cloth to prevent the pressure switch from heating then braze it 1 77 Low pressure switch 63L 74 2 OPERATING PROCEDURE PHOTOS 12 Removing the motor for compressor MC Photo 10 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 2 front cover panel fixing screws 5 X 10 and remove the front cover panel See photo 3 4 Remove 2 back cover panel fixing screws 5 X 10 and remove the back cover panel b Remove the electrical parts box See photo 3 6 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 X 16 and then remove the valve bed Terminal 7 Remove 3 right side panel fixing screws 5 X 10 in the cover rear of the unit and then remove the right side panel m 8 Remove 3 separator fixing screws 4 X 10 and remove 1 Compressor the separator z MC 9 Collect the refrigerant nw 10 Remove the 3 points of the motor for compressor fixing nut using a spanner or a adjustable wrench 11 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor
121. rings are correct on the connecting wires of Excessive numbers of indoor units per an indoor outdoor units outdoor unit five or more 2 Check if a single outdoor unit connects five or more indoor Mis wiring of indoor outdoor unit connection units wires crossed wiring or disconnection Start up time is up 2 blinks Indoor outdoor unit transmission error D Check if the wirings are correct on the connecting wires of Signal receiving error Indoor controller side indoor outdoor units outdoor unit transmission error 2 Check if there is noise on the wires of power supply and Transmitting error Indoor controller side connecting wires of indoor outdoor units ndoor outdoor unit transmission error 3 Check if there is noise on both indoor and outdoor Signal receiving error Outdoor controller side controller board outdoor unit transmission error 2 Turn the power off and let the units operate again to confirm error Outdoor controller side 3 blinks Remote controller transmission error D Check if the wirings are correct on indoor units or remote Signal receiving error Remote controller side controllers Remote controller transmission error 2 Check if there is noise on the transmission lines of remote Transmitting error Remote controller side controllers Remote controller transmission error 9 Turn the power off and let the units operate again to confirm Signal receiving
122. roller board as in the right Unit operation during emergency operation Changeable with SW 4 2 49 11 10 FUNCTION OF SWITCHS CONNECTORS AND JUMPERS Outdoor switch for a new freon function table Compulsory defrosting 1 Normal Heat compressor operating Abnormal history clear Normal off or operating summus 0 1 2 3 ON ON ON ON Refrigerant address setting NM When power supply ON 4 5 6 7 123456 123456 123456 123456 8 9 10 11 123456 123456 123456 123456 12 13 14 15 Test run ON OFF Test run mode setting Fan 100 fix 100 fix Normal off or operating 2 Outdoor LEV opening fix 2 Fix Normal off or operating No function No function No function 4 Length of defrost operation 20 minutes 15 minutes Normal Always 1 Compulsory defrosting should be done as follows Change the SW1 1 in the outdoor controller board OFF ON compulsory defrosting start According to the operation Heat mode setting Compressor operating defrosting starts when the piping temperature is 8 and below When the stated condition is satisfied the defrosting operation will be completed 2 gnore the change of LEV opening which is subject to change of subcooling and fix DIP SW 5 2 in the on position Then LEV opening is fixed When air conditioner is overloaded for some reasons ignore the change of subcooling and adjust the LEV opening in accordance with
123. rring from the linear expansion valve however when the E 7 pulse number moves from to or when the valve is locked m more noise can be heard than normal situation 8 No noise is heard when the pulse number moves from to in 5 case coil is burn out or motor is locked by open phase o Noise can be detected by placing the ear against the screw dri gt ver handle while putting the screw driver to the linear expansion Close valve Open 500 pulse Opening a valve all the way Pulse number Extra tightning about 32 pulse 46 2 3 How to attach and detach the coil of linear expansion valve Composition Linear expansion valve is separable into the main body and the coil as shown in the diagram below otopper Coil d ead wire How to detach the coil Hold the lower part of the main body shown as A firmly so that the main body does not move and detach the coil by pulling it upward Be sure to detach the coil holding main body firmly Otherwise pipes can bend due to pressure How to attach the coil Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to main body At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stopper i
124. run Especially items to secure safety 24 Operating procedures While the room temperature display on the remote 2 2 1 controller is PLEASE WAIT the remote controller is disabled operation mode are displayed altemately Wait until PLEASE WAIT disappears before using remote controller Displays the remaining test run time 1 Turn on the main power supply PLEASE WAIT appears for about 2 minutes after power supply is turned on 1 2 Press TEST button twice The TEST RUN appears on the screen Cooling mode Check if cool air blows and water is drained ISH ELECTRIC 3 Press OPERATION SWITCH Heating mode Check if warm air blows It takes a little EST RUM EN button while until warm air blows 4 Press AIR DIRECTION button Check for correct motion of auto vanes Cv a 5 Check the outdoor unit fan for The outdoor unit features automatic capacity control to ROC correct running provide optimum fan speeds Therefore the fan keeps 78 running at a low speed to meet the current outside air condition unless it exceeds its available maximum power Then in actuality the fan may stop or run in the reverse direction depending on the outside air but this does not mean malfunction 6 Press the ON OFF button to reset the test run in progress Pipe liquid temperature 7 Register the contact number ERROR CODE
125. s informa indoor unit tion with manual setting function of remote 3 If displayed address or attribute is During group operation with controller indoor unit remote controller detects indoor unit of multi refrigerant Only the system FRESH MASTER or LOSS abnormality when remote controller system if remote controller NAY are connected to or the system that is transmitted to indoor unit and there was transmit to indoor unit while equipped with group setting of different no reply ACK outdoor unit power supply of refrigerant system one refrigerant system is off or within 2 minutes of restart If there was no trouble with above abnormality is detected replace the controller board of displayed 2 Contact failure of transmission wire of remote controller or indoor unit 9 Disconnection of transmission connector CN2M of indoor repeater circuit unit multi controller board one by one to Defective trnamsitting receiv Check if the unit returns normally ing circuit of indoor unit or remote controller address or attribute If the unit does not return normally multi con troller board of outdoor unit may be defective 4 1 displayed address or attribute is During group operation with remote controller indoor unit detects indoor unit of multi refrigerant abnormality when indoor unit transmit system if indoor unit transmit ted to remote controller and there was to remote controller while out no
126. s not firmly attached to main body coil may be detached from the main body and that can cause defective operation of lin ear expansion valve To prevent piping stress be sure to attach the coil holding the main body of linear expansion valve firmly Otherwise pipe may break 47 Main body 7 M Be sure to attach the stopper 11 8 TEST POINT DIAGRAM Outdoor controller board PUH P71VHA UK PUH P100VHA UK PUH P71YHA q UK 100 PUH P125YHAq UK PUH P140YHA UK PU P71VHA q UK PU P100VHA UK PU P71YHA q UK PU P100YHA UK PU P125YHAq UK PU P140YHA UK CNLEV Linear expansion valve CNM V n DH SHL EHL A JA JB 9650950 280 z hhh lt Jumper wire TIALS o J1 J6 88 Model selection Ear Ra oo oo 0640 CO Communicati on power i supply 071 Voltage 4 developed 2 across 16 30V DC MF4 Swi Connect to fan motor MC contactor Crankcase heater Baypass valve Low pressure Fan 100 fix Group number Between Between and 9 Between and solenoid coil Switch Outdoor LEV opening address 220V 240V AC 220V 240V AC 220V 240V AC Between and fix MF4 is only for 220V 240V AC x4 51CM 125 140 x1 2154 Themal relay and PU P125 P140YHA UK coi Between and 3
127. s sides 9 After checking the above execute the test run in accordance with the following ON Stop Cooling 2 Test run start and finish Operation Operation from the indoor unit 12 O Heating Execute the test run using the installation manual for the indoor unit Operation from the outdoor unit Execute settings for test run start finish and operation mode cooling heating using the DIP switch SW 4 on the outdoor substrate D Set the operation mode cooling heating using SW4 2 2 Turn ON SW 4 1 The operation mode for SW 4 2 will be adhered to and the test run will commence Turn OFF SW 4 1 to finish the test run There may be a faint knocking noise emitted from the proximity of the fan during the test run This is torque fluctuation occurring due to control of fan revolutions There is no problem with the product Note The SW 4 2 operation mode cannot be changed during the test run To change run mode stop the equipment with SW 4 1 change the operation mode then restart test run with SW 4 1 26 11 3 HOW TO PROCEED SELF DIAGNOSIS 11 3 1 When a Problem Occurs During Operation If a problem occurs in the air conditioner the indoor and outdoor units will stop and the problem is shown in the remote controller display CHECK and the refrigerant address are displayed on the temperature display and the error code and unit number are displayed alternately as shown below MITSUBISHI ELECTRIC
128. select the desired setting Press the MENU button The currently selected setting number will number flash so check the currently set content Setting number display section Setting number 1 Indoor unit operating average Setting number 3 Remote controller built in sensor Register the settings you have made in steps to The mode number and setting number will stop flashing and remain lit indicating the Press the MODE button The mode number and setting number will start 219 of registration to flash and registration starts n n 1 1114 21 f is displayed for both the mode number and setting number and 58 flashes room temperature display area a transmission error may have occurred Check to see if there are any sources of noise or interference near the transmission path If you wish to continue to select other functions repeat steps to Complete function selection IN x 5 Hold down the D mode is 15 to 28 and buttons Do not operate the remote controller for at least 30 seconds after completing FILTER function selection No operations will be accepted even if they are made simultaneously for at least 2 seconds After a while the function selection screen will disappear and the air condi tioner OFF screen will reappear Note If a function of an indoor unit is changed by function selection after install
129. set Leave the refrigerant addresses to 00 if the group set ting is not conducted Set the refrigerant address by using DIP SW1 3 to 6 on the outdoor controller board Factory setting all switches are OFF All refrigerant addresses are 00 9 4 3 Regulations in address settings In case of multiple grouping system M NET and refrigerant address settings should be done as explained in the above sec tion Set the lowest number in the group for the outdoor unit whose refrigerant address is 00 as its M NET address Group A Group B Group C E n Refrigerant smit Refrigerant Refrigerant address 00 address 01 address 00 SONUR M NET M NET M NET Power address 02 address 03 address 04 supply unit for transmission wire A control A control A control remote remote remote controller controller controller 4 Refrigerant Refrigerant 7 Refrigera 7 Refrigerant 2 00 01 gt Q Address 02 M NET M NET M NET Power address 01 address 02 2 2 address 05 supply unit for transmission wire A control A control remote E remote controller In group B M NET address of the outdoor unit whose refrigerant address is 00 is not set to the minimum in the group As 3 is right for this situation the setting is wrong Taking group A as a good sample set the minimum M NET address in the group for the outdoor unit whose refrigerant address is 00
130. smission wire voltage and signal is caused by type unmatched transmis sion wire With shield wire CVVS CPEVS With normal wire no shield VCTF VCTFK CVV CVS VVR VVF Diameter 1 25mm or more 4 Accidental malfunction of abnormality generated controller 38 Same as mentioned in A7 of the previous page 7 Check transmission waveform or noise on transmission wire 2 Turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSS NAY at the same time for 2 minutes or more and turn the power on again If malfunction was accidental the unit returns to normal If the same abnormality generates again con troller of displayed address and attribute may be defective 2 11 5 TROUBLESHOOTING BY INFERIOR Phenomena _ 1 Remote controller display does not work Electric current marker is not displayed on the remote controller Reference Meaning of the indoor control board LED LED1 Micro computer power supply Display of DC14V is supply or not from indoor power LED2 Power output supplied to remote controller Displays the power condition supplied to wired remote controller When the refrigerant address is 0 supplied power output ON LEDS Indoor outdoor communication monitor Blinking when receiving the signal normally from the outdoor unit Indoor control p c board LED Main
131. t x O Refrigerant recovery equipment Collection of refrigerant exclusive for R410A XU Applied oil Apply to flared section Ester oil and alkylbenzene Ester oil O oil minimum amount Alkylbenzene oil minimum amount Safety charger Prevent compressor malfunction Tool exclusive for R410A when charging refrigerant by spraying liquid refrigerant Charge valve Prevent gas from blowing out Tool exclusive for R410A X when detaching charge hose Vacuum pump Vacuum drying and air Tools for other refrigerants can Usable if equipped A Usable if equipped purge be used if equipped with adop with adopter for rever with adopter for rever ter for reverse flow check se flow se flow Flare tool Flaring work of piping Tools for other refrigerants Usable by adjusting A Usable by adjusting can be used by adjusting flaring dimension flaring dimension flaring dimension Weider and nitrogen gas cyinder Weld the pipes Tobfromeregeamscmbeue Refrgerantchargingscale Chargerefrigerant Tor oer reigeraniscanbeused Sree tor vacuum gauge and valve prevents back flow of oil and refri can be used vacuum valve gerant to thermistor vacuum gauge Charging cylinder refrigerant jToolexcusiveforR410A J X Prepare a new tool Use the new tool as the tool exclusive for R410A A Tools for other refrigerants be used under certain
132. t address is set to 00 and the unit number is 02 After a while will start to flash in the mode number display area 00 refrigerant address Outdoor unit T Outdoor unit i i display section Indoor unit Unit number 01 Unit number 02 Unit number 03 Designate operation Remote controller Fan draft 88 will flash in the room temperature display area if the selected refrigerant address does not exist in the system When grouping different refrigerant systems if an indoor unit other than the Furthermore if appears and flashes in the unit number display area and the one to which the refrigerant address has been set performs fan operation refrigerant address display area also flashes there are no units that corre there may be another refrigerant address that is the same as the specified one spond to the selected unit number In this case the refrigerant address and unit In this case check the DIP switch of the outdoor unit to see whether such a number be incorrect so repeat steps O and 3 to set the correct ones refrigerant address exists 8 Select the mode number Press the B TEMP buttons and to set the desired mode Mode number number display section Only the selectable mode numbers can be selected er 02 Indoor tempreture detection Select the setting content for the selected mode Press the TEMP buttons and to
133. t is not operated by the remote controller 4 Do not operate for a long time as cold air is blown from the indoor unit when the outdoor unit starts defrosting operation during heating emergency operation 5 Cool emergency operation must be within 10 hours at most It may cause heat exchanger frosting in the indoor unit 6 After completing the emergency operation return the switch setting etc in former state 3 How to operate the emergency operation 4 1 Turn off the main power supply 2 Turn on the emergency switch SWE in the indoor controller board 3 Short circuit the CN31 emergency operation connector in the outdoor controller board 4 Set the operation mode COOL or HEAT with the SW4 2 in the outdoor controller board SW4 1 cannot be used 5 Turn on the main power supply 1 2 Cooling 6 The emergency operation starts and be sure of blinking the operation mode display Heating 4 Emergency operation details 1 Operate with the operation mode which has set COOL or HEAT by the SW4 2 2 In the fan operation conditions the fan is always operated by 100 percent 3 The operation mode display blinks at intervals of 1 second 5 How to release the emergency operation SW4 1 Turn off the main power supply 2 Turn off the emergency switch SWE in the indoor controller board 3 Open the CN31 emergency operation connector in the outdoor controller board 4 Set the SW4 2 on the outdoor cont
134. t of thermistor TH4 TH3 Abnormal thermistor TH6 of ermisor THATS Abnormal emmsur THE ee 4 A Compressor overcurrent interruption When compressor locked ofthe 5 U2 Abnormal discharge temperature controllsr board U1 Ud 2 high pressure 63H worked Overheating protection over load operation protection abnormal fan 9 U6 Compressor overcurrent interruption Z Go o O O de ___ _____ ___________ L 1282 0182 111123 ___ e _______ eel UA UE UL Thermal relay 51 has been tripped Abnormal high pressure Ball valves close Abnormal low pressure 63L worked 1 If the beeper does not sound again after the initial 2 beeps to confirm the self check start signal was received and the OPERATION INDICATOR lamp does not come on there are no error records 2 beeper sounds 3 times continuously beep beep beep 0 4 0 4 0 4 sec after the initial 2 beeps to confirm the self check start signal was received the specified refrigerant address is incorrect 30 11 4 SELF DIAGNOSIS ACTION TABLE Abnormalities detected when the power is turned on Note 1 The number in is the error cord of upper remote controller M NET Meaning of error code and detection method Judgment and action No voltage is supplied to termi Check following items nal block TB1 of indoor unit a Power supply breaker a Power s
135. termediate connection is necessary be sure to take measures to prevent water from entering the cables 20 2 9 4 WIRING METHOD Points to notice 1 Outside the unit transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication Place them at intervals of more than 5cm Do not put them in the same conduit tube 2 Terminal block TB7 for transmission wires should never be connected to 220 240V power supply If it is connected electronic parts on M NET p c board may be burn out 3 Use 2 core x 1 25mm shield wire CVVS CPEVS for the transmission wire Transmission signals may not be sent or received normally if different types of transmission wires are put together in the same multi conductor cable Never do this because this may cause a malfunction 222211 Nem 3 Refrigerant Refrigerant Refrigerant fou address 00 addres 00 address 00 controller M NET M NET M NET Power address 01 address 02 address 03 supply unit for transmission wire A control A control A control remote remote remote controller controller controller It would be ok if M NET wire non polar 2 cores is arranged in addition to the wiring for A control 4 Ground only one of any appliances through M NET transmission wire shield wire Communication error may occur due to the influence of electromagnetic no
136. the air 2 L1 fixing screws Inlet 2 PUH P125YHA UK _ PUH P140YHA UK PU P125YHA UK PU P140YHA UK PUH P125YHA1 UK PUH P140YHA UK PU P125YHA UK PU P140YHA UK OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel Figure 1 Top panel fixing Screws Top panel 1 Remove 3 service panel fixing screws 5 X 10 and slide ra ptm o A 2 on the right downward to remove the service A a m 2 a Service panel 2 Remove screws 3 for front 3 for rear 5 X 10 of the top UN panel and remove it screws epus P Grille 1 fixing screws a iis di p Ixing screws vim un 2 Removing the fan motor MF Photo 1 Front panel Photo 2 1 Remove the service panel See figure 1 Propeller 2 Remove the top panel See figure 1 3 Remove 5 fan grille fixing screws 5 X 10 to detach the fan grille See figure 1 4 Remove a nut for right handed screw of M6 to detach the propeller See photo 1 5 Disconnect the connectors 4 on controller circuit board in electrical parts box 6 Remove 3 fan motor fixing screws 5 X 16 to detach the fan motor See photo 2 Fan motor MF 3 Removing the electrical parts box 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Disconnect the indoor outdoor connecting wire fro
137. tions Outdoor unit model Outdoor unit Power supply N single 50 Hz 230 V 50 Hz 400 V Outdoor unit input capacity 2A Main switch Breaker 3 25A Max Permissive System Impedance om 2 x Min 4 4x Min 25 1 x Min 4 1 x Min 2 5 8 x 1 5 polar Indoor unit Outdoor unit earth 1 Min 1 5 Remote controller Indoor unit 3 2 x 0 3 Non polar Outdoor unit L N Outdoor unit L1 N L2 N L3 N messo Indoor unit Outdoor unit S1 S2 4 AC 230 V Indoor unit Outdoor unit S2 S3 4 DC 24 V Remote controller Indoor unit 4 DC 12 V 1 A breaker with at least 3 0 mm contact separation in each poles shall be provided Use non fuse breaker NF or earth leakage breaker NV 2 Max 45 m If 2 5 mm used Max 50 m If 2 5 mm used and S3 separated Max 80 m 3 The 10 m wire is attached in the remote controller accessory 4 The figures are NOT always against the ground 53 terminal has DC 24 V against S2 terminal However between S3 and S1 these terminals are NOT electrically insulataed by the transformer or other device Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and Indoor Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 60245 IEC 57 3 Install an earth longer than other cables Caution Do not push the contactor button 52C on the outdoor unit otherwise the compressor may be damaged
138. tting press the ON OFF button 1 Operation function limit setting operation lock D ON The clock function can be used To switch the setting press the CO ON OFF button OFF The clock function cannot be used Operation lock setting is made on all buttons other than 3 Timer function setting the ON OFF button switch the setting press the COON OFF button Choose one of no2 Operation lock setting is made on all buttons the followings 9 OFF Initial setting value Operation lock setting is not made 0 WEEKLY TIMER initial setting To make the operation lock setting valid on the normal screen it is The weekly timer can be used necessary to press buttons Press and hold down the FILTER AUTO OFF TIMER The auto off timer be used and CD ON OFF buttons at the same time for 2 seconds on 9 SIMPLE TIMER The simple timer can be used the normal screen after the above setting is made TIMER MODE OFF The timer mode cannot be used 2 Use of automatic mode setting When the use of clock setting is OFF the WEEKLY TIMER cannot be When the remote controller is connected to the unit that has auto used matic operation mode the following settings can be made 4 Contact number setting for error situation e To switch the setting press the C ON OFF button To switch the setting press the ON OFF button D ON Initial se
139. tting value The automatic mode is displayed when Q CALL OFF The set contact numbers are not displayed in case of error the operation mode is selected CALL The set contact numbers are displayed in case OFF The automatic mode is not displayed of error when the operation mode is selected CALL The contact number can be set when the display is as shown on the left Setting the contact numbers set contact numbers follow the following procedures Move the flashing cursor to set numbers Press the H TEMP V and 4 button to move the cursor to the right left Press the V and A button to set the numbers 4 4 Display change setting 1 Temperature display setting To switch the setting press the ON OFF button The temperature unit is used F The temperature unit F is used 2 Room air temperature display setting To switch the setting press the ON OFF button D ON The room air temperature is displayed OFF The room air temperature is not displayed 3 Automatic cooling heating display setting e To switch the setting press the ON OFF button ON One of Automatic cooling and Automatic heating is displayed under the automatic mode is running OFF Only Automatic is displayed under the automatic mode 3 Temperature range limit setting
140. und uonej ejsur 1953 15 SJause pue 5104 au ui uwous s rejop uonue dx3 5 UBD SHOQ OLIN uonepunoj 59596 10 ejdurexe 21524 821 009 821 suonoeuuoo pue 988914 eoeds 0 suoisuawiq e swous eu OL peuojou pedeys N Z SNOILO3UIQ 9NIHIM ONIdld 7 1108 NOILVONNOG 6 30795 5 y 32745 3344 exelu PU P125YHA UK PUH P125YHA UK PU P140YHA UK PUH P140YHA UK PU P125YHA UK PUH P125YHA UK PU P140YHA UK PUH P140YHA UK PU P71VHA UK PUH P71VHA UK PU P100VHA UK PUH P100VHA UK PU P71VHA UK PUH P71VHA UK PU P100VHA UK PUH P100VHA UK SYMBOL NAME SYMBOL NAME COMPRESSOR INNER THERMOSTAT FUSE1 O B FUSE 6 3A 250V THERMISTOR LIQUID TEMP COND TERMINAL BLOCK LINEAR EXPANSION VALVE ____ OUTDOOR CONTROLLER BOARD 5 O B CNVMNT CNLEV Z AA WHT 7 1 pTU C3 EN Lp MF3 CT LED1 GRN 5 WHT FC HT T3 LED2 RED 7 r MEL ON TH6 op
141. upply breaker is off b Connection of power supply terminal b Contact failure or discon block TB1 nection of power supply ter c Connection of power supply terminal minal block TB1 C L1 phased open phase Electric power is not charged Check following items to power supply terminal of a Connection of power supply terminal controller board block TB1 a Contact failure of power b Connection of terminal on controller board supply terminal b Disconnection of terminal R or 4 S on controller board Defective outdoor controller Replace following items board a Fuse 6 3A a Fuse 6 3A on controller b Controller board When items above are board is blown checked but the units can not be repaired b Defective parts Reverse phase detection Power supply L1 L2 L3 are not connected and indoor outdoor unit connecting wire correctly Check outdoor power supply connection converse connection Converse wiring of outdoor TB1 1 seconds after power on judge reverse power supply line TB1 and Replace two phases for example phase L1 4103 2 voltage phase of indoor power supply wire and phase L2 out of three phases of outdoor 2 Abnormal 4 minutes after power on if 2 xi 2 power supply and indoor outdoor unit 9 connecting wire have converse connection L3 phased open phase detection D L3 phased open phase D Check power supply Detect open phase 2 seconds after power 4102
142. utton and check whether strong air is blown out from the unit Press the button and check whether the auto vane operates properly Press the ON OFF button to stop the test run i TEMP ON OFF CHECK TEST RUN RESET a Note Point the remote controller towards the indoor unit receiver while following steps to 2 e It is not possible to run the FAN DRY or AUTO mode 2 Outdoor Unit 1 Check Items After installation of indoor and outdoor units and tubing and electric wiring work check that the unit is free from leaks of refrigerant loosened connections and incorrect polarity Check that there is no negative phase and open phase The F1 message for negative phase and the F2 message for open phase will flash at digital indicator LED 1 on the outdoor substrate If this happens rewire correctly e Measure the impedance between power terminals Single phase L N triple phase L1 L2 L3 and the ground with a 500V Megger and check that it is 1 0M or more Do not operate the equipment if measurement is less than 1 0 Never conduct this operation on the out door connection wiring terminals 51 52 53 as this causes damage When there is no error at the outdoor unit If there is an error at the outdoor unit it can be evaluated at LED 1 digital display of the outdoor substrate Factory setting The stop valves are open both the liquid and ga
143. value The clock function can not be used Weekly timer can be used Initial setting value Auto off timer can be used Simple timer can be used Timer mode can not be used The set contact numbers are not displayed in case of error Initial setting value The set contact numbers are displayed in case of error The temperature unit is used Initial setting value The temperature unit F is used Room air temperature is displayed Initial setting value Room air temperature is not displayed One of Automatic cooling and Automatic heating is displayed under the automatic mode is running Initial setting value Only Automatic is displayed under the automatic mode 13 DISASSEMBLY PROCEDURE PUH P71VHA UK 100 PUH P71YHA UK PUH P100YHA UK PU P71VHA UK PU P100VHA UK PU P71YHA UK PU P100YHA UK PUH P71VHA UK PUH P100VHA 1 UK PUH P71YHA i UK PUH P100YHA UK PU P71VHA UK PU P100VHA UK PU P71YHA UK PU P100YHA UK OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel 1 Remove 3 service panel fixing screws 5 X 10 and slide the hook on the right downward to remove the service panel 2 Remove screws 3 for front 3 for rear 5 X 10 of the top panel and remove it Figure 1 Top panel fixing screws Top panel pp I HEL Hal im ia it m E Service panel
144. wer supply of same refrigerant sys tem with LOSSNAY is off or within 2 minutes of restart abnormality is detected 9 Contact failure of transmission wire of indoor unit of LOSS NAY 4 Disconnection of transmission connector CN2M of indoor unit 5 Defective transmitting receiv ing circuit of indoor unit or LOSSNAY 6 If displayed address or attribute is LOSSNAY Indoor unit detects abnormality when indoor unit transmitted to LOSSNAY and there was no reply ACK D The unit of former address does not exist as address switch has changed while the unit was energized 2 Abnormality is detected when indoor unit transmitted because the address of FRESH MASTER and LOSS NAY are changed after sequential operation of FRESH MASTER and LOSS NAY by remote controller 7 f displayed address or attribute is nonexistent M NET NO RESPONSE Abnormal if a message was transmitted and there were reply ACK that message was received but response command does not return Transmitting side detects abnormality every 30 seconds six times continuously Note The address and attribute displayed at remote controller is indicate the controller that did not reply ACK Transmitting condition is repeated fault because of noise and the like Extension of transmission wire voltage and signal is caused by over range transmission wire Maximum distance 200m e Remote controller line 12 3 Extension of tran
145. wer on because of mis wiring converse wiring or disconnection of indoor outdoor unit con necting wire Start up time over The unit can not finish start up process within 4 minutes after power on Serial communication error The communication between outdoor con troller board and M NET p c board is not available Contact failure or mis wiring of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity 9 Five or more indoor units are connected to one outdoor unit 2 Defective transmitting receiv ing circuit of outdoor controller board 5 Defective transmitting receiv ing circuit of indoor controller board amp Noise has entered into power supply or indoor outdoor unit connecting wire C Remote controller is wired up among indoor units twin triple or quadro units Two or more outdoor units has refrigerant address 0 In case of group control D Contact failure or mis wiring of indoor outdoor unit connecting wire 2 Diameter or length of indoor outdoor unit connecting wire is out of specified capacity 2 Defective transmitting receiving circuit of outdoor controller board Defective transmitting receiving circuit of indoor controller board amp Noise has entered into power supply or indoor outdoor unit connecting wire Remote controller is wired up among indoor units twin triple or quadro units Two or mo

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