Home

A1 , MUZ-GE35VAD-A1 , MUZ-GE42VAD-A1 , MUZ-GE60VAD-A1

1. 6 6 7 8 8 44 10 454 10 2 9 7 9 3 9 0 10 4 510 1 1 5 5 5 3 J Indoor intake air Wet bulb 614724 774 954 94 90 864 95 93 814 temperature C 56586 66 74 87 86 82 79 764 87 85 413 wo b 5 8 5 14 6 0 4 65 80 794 75 724 694 804 77 9 12 26 9 9 4 5 5 9 1 1 584 5 5 5 9 7 2 7 1 6 8 6 5 6 3 7 2 7 0 gt 24 4 2 14 9 53 6 55 6 4 6 1 5 8 5 6 6 54 6 3 8 1 0 8 8 8 3 744475 474 574 5 775 544 524 504 57 2 564 09 2 18 28 lt 32 48 gt 9 2 e 2 10 5 0 5 10 15 20 25 30 35 40 45 22 o 552 24 22 33 22 Outdoor intake air Dry bulb temperature C NN e IO IO NNN NN N INNINN INN N 2 555 5 5 55 gt gt gt gt gt z 22 22 55 z gt gt 532 i Total input Cooling at Rated frequency 8 56466 7 1 874 864824 7 9 7 6 8 7 8 5 13 S
2. sbceooco 000000 ENG Defrost thermistor RT61 Ambient temperature thermistor RT65 Outdoor heat exchanger temperature thermistor RT68 100 Resistance kQ 0 20 10 0 Temperature OBH532E Discharge temperature thermistor RT62 0 a e e Resistance kQ 10 20 30 40 50 m 80 9 1 100 1 110 120 EE SERRE RRS Ue HEH Temperature 84 JS Jumper wire for chang ing defrost setting JK Jumper wire for pre heat control setting CN671 Defrost thermistor RT61 CN671 Discharge temperature thermistor RT62 CN671 Outdoor heat exchanger tem perature thermistor RT68 CN672 Ambient temperature thermistor RT65 CN673 Fin temperature thermistor RT64 CN724 LEV connector 0 0 10 20 30 40 50 60 70 80 Temperature MUZ GE60VAD MUZ GE71VAD MUZ GE80VAD F601 Fuse T3 15AL250V CN602 CN601 R V coil Heater
3. 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz Test conditions Cooling Dry bulb temperature 35 C Wet bulb temperature 24 C Heating Dry bulb temperature 7 C Wet bulb temperature OUTDOOR UNIT 1m MICROPHONE 12 6 C 9 OUTLINES AND DIMENSIONS MUZ GE25VA MUZ GE25VAD MUZ GE33VA Unit mm MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD REQUIRED SPACE Basically open 100 mm or more without any obstruction in front and on both sides of the unit Bolt pitch for installation 304 325 Open two sides of left right or rear side Service panel Liquid refrigerant pipe joint Refrigerant pipe flared 26 35 Gas refrigerant pipe joint Refrigerant pipe flared 29 52 Open as a rule 500 mm or more if the front and both REQUIRED SPACE sides are open 100 mm or more 200 mm or more if there are obstacles to both sides Open as a rule 500 mm or more if the back both sides and top are open Service panel Liquid refrigerant pipe joint Refrigerant pipe flared 26 35 M 850 IN S SS 2 gt Zum f 11 1 NS gt 430 LAN 5 Y 3 Gas refrigerant pipe joint Refr
4. 532 1 TECHNICAL CHANGES MUZ GE25VA MUZ GE33VA MUZ GE35VA ai MUZ GE42VA MUZ GE50VA m MUZ GE60VA MUZ GE71VA MUZ GE80VA 1 New model MUZ GE35VA 3 MUZ GE35VA2 MUZ GE50VA a71 gt MUZ GE50VA2 MUZ GES80VA a1 gt MUZ GE80VA2 a 1 Inverter P C board has been changed gt z a MUZ GE25VA 1 MUZ GE25VA 1 Compressor has been changed 2 Back panel has been changed 3 Outdoor heat exchanger has been changed 4 Reactor has been changed 5 6 N Inverter P C board has been changed Maximum heating capacity has been changed MUZ GE35VA2 gt MUZ GE35VA2 1 Compressor has been changed 2 Back panel has been changed 3 Outdoor heat exchanger has been changed 4 Inverter P C board has been changed 5 MUZ GE25VA 22 gt MUZ GE25VAD MUZ GE35VA2 gt MUZ GE35VAD MUZ GE42VA gt MUZ GE42VAD MUZ GE50VA2 MUZ GES50VAD 1 Inverter P C board has been changed a 1 gt A1 gt a MUZ GE60VA 1 gt MUZ GE60VAD MUZ GE71VA 77 gt MUZ GE71VAD 7 MUZ GE80VA2 a1 gt MUZ GE80VAD a 1 Outdoor heat exchanger has been changed 2
5. Expansion valve coil 12 VDC Reactor 340 uH Power factor controller 20 A 600 V 20 A 600 V 20 A 600 V 20 A 600 V 20 A 600 V 20 A 600 V Current limiting PTC thermistor 330 Terminal block 3P 20 250 V 250V 250V 220 240 532 10 4 NOISE CRITERIA CURVES MUZ GE25VA MUZ GE33VA MUZ G E25VAD FUNCTION SPL dB A LINE MUZ GE35VA FUNCTION SPL dB A LINE COOLING 46 ee COOLING 47 ee HEATING 48 0 0 HEATING 48 0 0 90 I I I I 4 4 90 80 20uPa 20uPa 70 X Bee 60 T T ES NC 60 50 NC 50 40 30 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB OCTAVE BAND SOUND PRESSURE LEVEL 0 dB 2L NE i 20301 NE 10 a Ed 20 1 1 B z 3 NC 20 INC 20 F F i j 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz MUZ GE35VA2 MUZ GE42VA MUZ GE35VAD SPL dB A MUZ GE
6. 510130 02 190403 95 70 04131195 10 3j Nua BUIJIM 211 28 8 ius JW J00PUI 34 01 13431 BUIJIM 291 1914 6914 88111413 8 311138 8 8918 10001 ayy 1004 71 PP PPP Slt 611 4 OH 40 91121611 21812 11812 EYINI 890 0901 20 532 MUZ GE50VA ONTLOINNOD 800081 01 13 388 114485 13808 208 1022 e MIMN89 Tal 69X 6 1514 151 1 431 1102 291 u39NVHOX3 1V3H 8000100 u012V3H 191 71109 JAWA 9NISU3A38 015 1 INdIdMV 320130 d3MOd 1N39I 1131NI 00821 AN 138 79X 9X YOLSIWYSH dW3l NIJ 31004 H3MOd 1N39I1131NI WdI 0 62H HHMHUHSNVH 1081 HOLSIWHJHl 48431 398 2510 1 3SN4 1064 1084 1013 HUISISNVH HHMOd SNIHOLIMS 16881 YHOLSIWYSHL 1504330 1914 0501 7001 3513 194 39018 1 081 181 011931084 11010410 99914 979314 43840589 398115 VS 40151534 9NI123130 1433319184863 91668 YOLOW 3 IW 311008 30010 8980 1980 80151538 9 1193110 GeBH u0SS3HdWOJ OW 801102 4 2 SNIHIOONS 99 299 19 80151538 9NI12313Q0 1N3HHfD 98 198 1102 3A1VA NOISNVdX3 1 IN3HHf 19 3NVN 108445 108445 108445 BUTJIIM 91 10 d AW Mey inane 2 e 448 09M sar
7. c 5310 2 t H Lr oo 0011 1 T1982 995 170 01910 1 11882 s oc od D NHO 23 OBH532E MUZ GE60VA MUZ GE71VA MUZ GE80VA 13014 euruap TT 8 e21pur sjoquAS 0 BUTIIA p 8T UO 10 20pu03 180002 ash 2 11115185 10 MEI6BIP 21111819 JTUN JOOPUT ay 0 1910 BUTITK 21233318 pIS 100pU ayy nOqV 5310 7914 011931084 1115415179519 AV 13H u311001N09 301914 83804 YOLOW AV 138 30553484 09 045 1 39018 1lVNIWBH319Pp8l I8l 1109 3A WA NOISNVdX3 013 3 8015 11 dW31 u39NVH9X3 1 8000100 310008 H3MOd 11391111 801518 1 dW 1131 5918 gOlSINH3HI NIJ A056 1 35113 4831 39HVHOSIO 0151 1 15084340 A056 Wel 35013 011931084 LI02812 5921d 26621 9 re N9 549509 419599 1190 1 i 24 2 2 eH b 7612 oles 5 2591 661 5 HMVN 108845 JWYN 108WAS 5914 8918 4918 1318 zd e e I S accu 589 289 185 SEE le Y MA 5 DL 03909 9 d 83
8. 01 1918 BUIJIM 38 Jeo E 23 2 11112819 8915 00PUI ayy 04 T 80 012 35 Pi UH E IT PUE 5310N O OOOO 11 o oj lo OIT 28812 amp 890 09982 1 u33v3u8 1119819 le 1 N 2H0G 1086 N 1e MVN T 08708 7274 0 18 532 MUZ GE42VA r re camo Ave c1 9N1193NN0J LINN YOOONT OL 83388 1109812 2405 MOEZ MT 15 9 gana 5 1 N 1064 N 4 nM fe oc M 38 WOISIWHJHI 4431 INJIGNY SOLU 1102 3A WA 015 4 3 181 1102 3X WA 58 7512 15 1 4431 31 011 AV 79X 69X HOISIWUJHIdW3I 3OHVHOGIO 251 TINO 83804 Wl 83NHOJSNVUL 1081 1018 1 1 1508330 1913 39IA30 83804 20891 BOISISNVHI 83NDd SNIHOLING 1288 NOIIO3IONd 1102812 59214 95014 AUSZIVGI EL 3603 108 1084 0018 281 181 HOLOW 3 08214021 3514 194 WOISINU3HI dW3l 80556384402 W 310008 30010 5980 1880 HJONVHOX3 Iv3H 8000100 89 801238 191 HOIIOVdV 9NIHIOOMS 10010 3HVN MVN 108MAS 104
9. 532 i 12 2 MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD NOTE Turn OFF power supply before disassembly OPERATING PROCEDURE PHOTOS Photo 1 1 Removing the cabinet Screw of the top panel 1 Remove the screws of the service panel 2 Remove the screws of the top panel 3 Remove the screw of the valve cover 4 Remove the service panel 5 Remove the top panel 6 Remove the valve cover 7 Disconnect the power supply and indoor outdoor connect ing wire 8 Remove the screws of the cabinet 9 Remove the cabinet 10 Remove the screws of the back panel 11 Remove the back panel ITI With cabinet Screw of the top panel LJ Lj LJ Screws of the cabinet v Mb LLLLLLEPT TT Screw ofthe service panel 89 532 OPERATING PROCEDURE PHOTOS 2 Removing the inverter assembly inverter P C board 1 Remove the cabinet and panels Refer to 1 2 Disconnect the lead wire to the reactor and the following con nectors Inverter P C board CN721 R V coil CN931 CN932 Fan motor CN641 Defrost thermistor and discharge temperature ther mistor CN643 Ambient temperature thermistor CN644 Outdoor heat exchanger temperature thermistor CN724 LEV 3 Remove the compressor connector CN61 4 Remove the screws fixing the relay panel 5 Remove the inverter assembly 6 Remove th
10. No beep Beeps Repeated cycle Repeated cycle Repeated cycle 3 Outdoor unit failure mode table The upper lamp of OPERATION INDICATOR lamp Indoor unit Abnormal point Failure mode protection LED indication Outdoor P C board Condition Indoor outdoor unit failure mode recall function Outdoor unit failure mode recall function OFF None Normal 1 time flash 2 5 seconds OFF Indoor outdoor communication receiving error Any signals from the inverter P C board cannot be received normally for 3 minutes Refer to 11 5 How to check miswiring and serial signal error Indoor outdoor communication receiving error Although the inverter P C board sends signal 0 signal 1 has been received 30 consecutive times Refer to 11 5 How to check miswiring and serial signal error Outdoor power system Overcurrent protection cut out oper ates 3 consecutive times within 1 minute after the compressor gets started Reconnect connectors Refer to 11 5 How to check inverter compressor Check the stop valve Discharge temperature thermistor Defrost thermistor 1 time flash every 2 5 seconds Fin temperature thermistor 3 time flash 2 5 seconds OFF P C board temperature thermistor 4 time flash 2 5 seconds OFF Ambient temperature thermistor 2 time flash 2 5 seconds OFF Outdoor heat exchanger temp
11. Releasing the failure mode recall function Release the failure mode recall function by the following procedures Turn OFF the power supply and turn it ON again Press RESET button of the remote controller Y Repair the failure parts Deleting the memorized abnormal condition The outdoor unit is normal Release the failure mode recall function accord ing to the left mentioned procedure After repairing the unit recall the failure mode again according to Setting up the failure mode recall function 11 2 1 2 Press OPERATE STOP ON OFF button of the remote controller the set temperature is displayed with the remote controller headed towards the indoor unit 8 Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted 2 Release the failure mode recall function according to Releasing the failure mode recall function men tioned above NOTE 1 Make sure to release the failure mode recall function after it is set up otherwise the unit cannot operate properly 2 If the abnormal condition is not deleted from the memory the last abnormal condition is kept memorized 2 Blinking pattern when outdoor unit is abnormal Blinking at 0 5 Blinking at 0 5 2 5 second OFF 3 second ON second interval 2 5 second OFF 3 second ON second interval E deo bo pec jc 4 532 2 4 n Beeps
12. Measure the resistance using a tester Temperature 10 40 C R V coil 2184 Normal kO 1 19 1 78 Measure the resistance using a tester Temperature 10 40 C MUZ GE25 33 35 42 50VA MUZ GE35 50VA2 MUZ GE25 35 42 50VAD Color of lead wire Normal WHT RED RED ORN YLW BRN BRN BLU 37 54 Expansion valve coil LEV Measure the resistance using a tester Temperature 10 40 C MUZ GE60 71 80VA MUZ GE80VA2 MUZ GE60 71 80VAD Color of lead wire Normal RED ORN RED WHT RED BLU RED YLW 37 54 532 11 5 TROUBLESHOOTING FLOW xd d Intelligent power module IPM MUZ GE25VA How to check inverter compressor IGBT module IC700 MUZ GE60 71 80VAD Power module IPM Other models Disconnect the connector between E compressor and the intelligent power module IPM IGBT module IC700 power module MUZ GE35 50VA a did x1 P Y Check the voltage between terminals See 11 5 8 Check of open phase y Is the voltage balanced No Replace the inverter P C board Yes Check the compressor vvv v9O9 See 11 5 Check of compressor 8 Check of open phase e With the connector between the compressor and the intelligent power module IPM IGBT module 1 700 power module IPM disconnected
13. 4 Is there rated voltage between outdoor terminal block S1 and S2 N yres Press EMERGENCY OPERATION switch once Y Does the upper lamp of OPERATION INDICA TOR lamp light up Confirmation of the power to the indoor unit Yes Y Is serial signal error indicated 6 minutes later Yes lt Check the wiring No i Is there any miswiring poor contact or wire disconnection of the No indoor outdoor connect ing wire Yes Correct them No Turn OFF the power supply Check once more if the indoor outdoor connecting wire is not miswiring Short circuit outdoor terminal block S2 X1 Miswiring may damage indoor electronic control P C board during the operation Be sure to confirm the wiring is correct before the opera tion starts X3 Be sure to check this within minutes after turning ON After 3 minutes LED blinks 6 times Even when the S3 1 inverter P C board is normal LED blinks 6 times after 3 Y minutes Turn ON the power supply Is the bus bar voltage of the inverter P C board normal Refer to TEST POINT DIAGRAM AND VOLTAGE of the outdoor unit No Yes Y P C board repeat 3 6 second OFF and 0 8 sec Replace the inverter P C board x2 Lighted Yes or not X2 Be careful of the residual voltage of smoothing Y lighted capacitor Turn OF
14. 0 00 40 20 30 40 50 60 1i 80 90 100 110 120 Temperature 83 56 Fin temperature thermistor RT64 BEEN RUN ES eus 8 HEN 0 0 10 20 30 40 50 ard 70 8 80 Temperature JK 230 VAC Jumper wire for Dre heat control setting bility MUZ GE60VA CN931 Signal of out door fan motor LED CN932 Output to drive outdoor fan motor F901 Fuse T3 15AL250V F880 Fuse T3 15AL250V MUZ GE71VA MUZ GE80VA MUZ GE80VA2 F601 Fuse CN602 R V coil T2 0AL250V T3 15AL250V 230VAC 1 TAB62
15. MUZ GE33VA Power supply Single phase 230 V 50 Hz Capacity Rated freq Co oling 2 5 1 1 3 5 3 3 1 4 3 9 uency Min Max He ating 3 2 1 3 4 5 3 2 1 3 4 1 3 2 1 3 4 5 4 0 1 4 4 8 Breaker Capacity 560 730 910 1 030 Cooling Heating Cooling 2 9 4 3 Heating 3 8 4 8 Cooling 84 92 Heating 84 93 Starting current 1 Total A 3 8 4 8 Coefficient of performance Cooling 3 63 COP 1 Total Heating 3 88 KNB092FFAHC 650 3 70 4 30 Power input 1 Total Running current 221 Total 4 Power factor 1 Total Electrical data Model Output Ww Cooling Heating Refrigeration oil Model Model KNBO73FFDHC KNBO73FKVHC Compressor Current 241 A 0 32 NEO22 0 36 NEO22 0 32 NEO22 RC0J50 DB Fan motor Cooling 0 31 Heating Current 1 027 Dimensions W x Hx D 800 x 550 x 285 Weight 30 Dehumidification Cooling High Med Low High Med Low Cooling d Heating High Med Low High Med Low Cooling Air flow 321 Heating Sound level amp 1 Cooling Special remarks Fan speed Heating Fan speed regulator Refrigerant filling capacity R410A NOTE Test conditions are based on AS NZS 3823 1 1 Cooling Indoor Dry bulb temperature 27
16. Stop valve Closed valve Closed valve is detected by compressor current Check the stop valve OFF 16 time flash 2 5 seconds OFF 4 way valve Pipe temperature VAD The 4 way valve does not work properly Check 4 way valve Replace inverter P C The indoor coil thermistor detects an board abnormal temperature NOTE Blinking patterns of this mode differ from the ones of Troubleshooting check table 11 3 11 3 TROUBLESHOOTING CHECK TABLE Abnormal point LED indication Condition Symptom Condition Remedy Outdoor unit does not op erate 1 time flash every 2 5 seconds Outdoor power sys tem Overcurrent protection cut out operates 3 consecutive times within 1 minute after the compressor gets started Reconnect connector of compressor Refer to 11 5 How to check in verter compressor eCheck the stop valve Outdoor thermistors Discharge temperature thermistor fin temperature thermistor defrost thermistor outdoor heat exchanger temperature ther mistor P C board temperature thermistor or ambient tempera ture thermistor shorts or opens during compressor running Refer to 11 5 Check of outdoor thermistors Outdoor control sys tem Nonvolatile memory data cannot be read properly The upper lamp of OPERATION INDICATOR lamp of the in door unit lights up or flashes 7 time Replace the inverter P C board 6 time flash
17. The operational frequency The operational frequency of compressor Hz of compressor Hz MUZ GE35VA2 MUZ GE35VAD Correction of Cooling capacity Correction of Cooling input 1 5 15 5 p 5 5 815 E 1 0 5 51 0 9 V2 o E 5 8 9 51 0 o a Z 20 5 8 505 50 5 9 2 5 0 0 0 0 0 0 0 50 100 0 50 100 The operational frequency of compressor Hz MUZ GE42VA MUZ GE42VAD Correction of Cooling capacity Correction of Cooling input The operational frequency of compressor Hz 1 5 1 5 o o p 8 5 8 1 5 8 gs E E 1 0 o 9 5 1 0 8 E 8 20 5 8 205 9 50 5 9 8 5 o zm o 0 0 0 0 0 0 0 50 100 0 50 100 The operational frequency The operational frequency of compressor Hz of compressor Hz 33 532 The operational frequency of compressor Hz Correction of Heating capacity 50 The operational frequency of compressor Hz Correction of Heating capacity ni o 50 The operational frequency of compressor Hz Correction of Heating capacity N N e o 50 1 The operational frequency of compressor Hz Correction of Heating capacity o N AAS o e The operational frequency of compressor Hz 150 Correction of Heating input Input correction factors The operational frequency of compressor Hz Correction of Heating input d a a o Input correction factors en o o o o 50 The operatio
18. 2 5 kW SHF 0 96 INPUT 560 W OUTDOOR DB C NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 1 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE25VA MUZ GE25VAD CAPACITY 2 5 kW SHF 0 96 INPUT 560 W OUTDOOR DB C NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE33VA CAPACITY 3 3 kW SHF 0 88 INPUT 910 W OUTDOOR DB C Exo peor INPUT 3 88 E KEE 0 70 Eu 2 49 0 70 4 04 2 34 0 58 3 88 2 25 0 58 3 76 2 18 0 58 3 88 2 87 0 74 3 71 2 75 0 74 3 56 2 64 0 74 3 43 2 54 0 74 4 04 2 51 0 62 3 88 2 40 0 62 3 76 2 33 0 62 3 63 2 25 0 62 4 21 2 10 0 50 4 06 2 03 0 50 3 96 1 98 0 50 3 80 1 90 0 50 INDOOR WB C 4 04 2 67 0 66 3 88 2 56 0 66 4 21 2 27 0 54 4 06 2 19 0 54 3 76 2 48 0 66 3 63 2 40 0 66 3 96 2 14 0 54 3 80 2 05 0 54 3 88 3 02 0 78 3 71 2 90 H 2 78 0 78 3 43 2 68 0 78 810 810 810 810 NOTE Q Total capacity kW SHF Sens
19. 2 5 seconds OFF Serial signal The communication fails between the indoor and outdoor unit for 3 minutes Refer to 11 5 How to check mis wiring and serial signal error 11 time flash 2 5 seconds OFF Stop valve Closed valve Closed valve is detected by compressor current Check the stop valve 14 time flash 2 5 seconds OFF Outdoor unit Other abnormality Outdoor unit is defective Refer to 11 2 2 Flow chart of the detailed outdoor unit failure mode recall function 16 time flash 2 5 seconds OFF VAD 4 way valve Pipe temperature The 4 way valve does not work properly The indoor coil thermistor detects an abnormal temperature Refer to 11 5 Check of R V coil Replace the inverter P C board 2 time flash 2 5 seconds OFF Outdoor unit stops and restarts 3 minutes later is repeated Overcurrent protec tion Large current flows into the intelligent power module IPM IGBT module 1 700 power module IPM X1 Reconnect the connector of the pressor Refer to 11 5 How to check in verter compressor eCheck the stop valve 3 time flash 2 5 seconds OFF Discharge tempera ture overheat protec tion Temperature of discharge temperature thermistor exceeds 116 C compressor stops Compressor can restart if discharge temperature thermistor reads 100 C or less 3 minutes later Check the refrigerant circuit and the refrigerant amou
20. 63 MUZ GE25VA 10 SERVICE 64 Mo GEM 11 TROUBLESHOOTING 65 MUZ GE35VA 12 DISASSEMBLY INSTRUCTIONS 86 PARTS CATALOG 532 MUZ GE42VA MUZ GE42VAD NOTE RoHS compliant products have G mark on the spec name plate Use the specified refrigerant only Never use any refrigerant other than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions Revision A e MUZ GE60VA A1 MUZ GE71VA IA1 and MUZ GE80VAJA1 have been added Revision B e MUZ GE33VA a and MUZ GEA42VA4A1 have been added Revision C e MUZ GE35VA2 A MUZ GE50VA2 A1 MUZ GE80VA2 At have been added a Revision D e MUZ GE25VA a2 and MUZ GE35VA2 a2 have been added Revision E a e MUZ GE25VAD4A1 MUZ GE35VAD a1 MUZ GE42VAD a1 MUZ GE50VAD A1 MUZ GE60VAD A1 MUZ GE71VAD a1 and MUZ GE80VAD A1 have been added
21. K UO 810130 02 184402 950720 133 NH 31 801311188 10 5UIJIA 21 138 8 1100 JW JOOPUT 94 01 18j8J BUTIIM 6918 1914 5918 89141311 31113818 8PIS 100 1 ayy Ap 5 E 85310N I a Ea I Lim TINI 17982 0901 dHV0H 7274 YJ143AN 1 031 1982 fl OW 8 M 19 532 MUZ GE42VAD 9NL123NN0J LINN 800081 01 34349 1112819 114415 13100 2108 1020 N me 5 lt S1 mazs 081 Xt 0 UOISIWH3HI dWil TR 8012738 191 U39NVHOX3 1v3H 80001010 1102 3A VA NOISNVdX3 A31 UOISIWH3HI 9431 INJISHV 5914 031 031 UOISINH3HI dW3I NTG 7919 310004 9309 2662 WdI 1100 JAVA 9NISUSA3U 7512 4831 398 510 291 391A30 3 00 20801 AW Iu ENX 151 1 1508430 1918 11084 195181 3504 1063 1004 101 045 81 1081 01133104 LIfIOHIJ 59214 79214 11021 3504 194 HOLSISNVUL USMOd SNIHOLIMS 108 YOLOW FINGOW 30010 6980 1980 39018 281 181 05538909 01139493 SNIHLOONS 9 18 180 BNVN 08MAS BNVN DHMAS BNVN 0HMAS BUTIIM Plat 104
22. R V coil has been changed 3 4 Way valve has been changed 4 Service panel has been changed 5 Terminal block has been changed 6 Inverter P C board has been changed a a a OBH532E 2 PART NAMES AND FUNCTIONS MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD back and side Drain hose Air outlet Drain outlet MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD AU 532 Airinlet back and side Drain hose Air outlet Drain outlet MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Airinlet back and side Piping J Drain hose Air outlet Drain outlet ACCESSORIES MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE50VA MUZ GE60VA MUZ GE60VAD MUZ GE35VA MUZ GE35VA2 MUZ GE50VA2 a MUZ GE35VAD MUZ GE50VAD MUZ GE42VA MUZ GE42VAD MUZ GE80VAD Drain socket 1 1 1 Drain cap OBH532E SPECIFICATION Outdoor model MUZ GE25VA MUZ GE25VA 22 MUZ GE25VAD
23. activate the inverter and check if the inverter is normal by measuring the balance of voltage between the terminals x1 Output voltage is 50 130 V The voltage may differ according to the tester lt lt Operation method Start cooling or heating operation by pressing EMERGENCY OPERATION switch on the indoor unit TEST RUN OPERA TION Refer to 8 3 Measurement point At 3 points BLK U WHT V Measure AC voltage between the lead wires at 3 points BLK U RED W WHT V RED W NOTE 1 Output voltage varies according to power supply voltage 2 Measure the voltage by analog type tester 3 During this check LED of the inverter P C board flashes 9 times Refer to 11 6 1 Check of compressor Refer to 11 5 Check of compressor winding No Replace the compressor Is the compressor normal Refer to 11 5 Check of compressor operation time No Refer to 11 5 Check of compressor start failure Does the compressor operate continuously Yes 532 G xd Intelligent power module IPM MUZ GE25VA IGBT module 1 700 MUZ GE60 71 80VAD Power module IPM Other models a MUZ GE35 50VA D Check of compressor winding eDisconnect the connector between the compressor and the intelligent power module IPM IGBT module IC700 power mod ule IPM and measure the resistance between the com
24. blown on the in verter P C board Yes No Y Check the connection of the connectors CN931 CN932 of the outdoor fan motor If the connection is poor make it correct MUZ GE50 60 71 80 Operate the outdoor unit by starting EMERGENCY OPERATION Check the LED indication on the in Check the corresponding parts verter P C board N following LED indication Does the LED flash 10 times 9 Refer to 11 3 Yes 10 time flash Replace the inverter P C board lt 532 d How to check miswiring and serial signal error MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Turn OFF the power supply Is there rated voltage in the power supply Y Yes Turn ON the power supply Check the power supply No lt Is there rated voltage between outdoor terminal b lock 1 522 gt Check the wiring yres Press EMERGENCY OPERATION switch once y Does the upper lamp of OPERATION INDICA TOR lamp light up lt Confirmation of the power to the indoor unit gt Yes y Is serial signal error indicated 6 minutes later Yes lt No Is there any miswiring poor contact or wire disconnection of the indoor outdoor connect ing wire Yes Corr
25. board from the relay panel Screws 3 Removing coil the relay 1 Remove the cabinet and panels Refer to 1 panel 2 Disconnect the following connector Inverter P C board CN602 R V coil 3 Remove the R V coil Screw of the coil Brazed parts of 4 way valve 532 OPERATING PROCEDURE PHOTOS 4 Removing the discharge temperature thermistor defrost thermistor outdoor heat exchanger tempera ture thermistor and ambient temperature thermistor 1 Remove the cabinet and panels Refer to 1 2 Disconnect the lead wire to the reactor and the following connectors Inverter P C board CN671 Defrost thermistor discharge temperature thermis tor and outdoor heart exchanger temperature ther mistor CN672 Ambient temperature thermistor 3 Pull out the discharge temperature thermistor from its hold er 4 Pull out the defrost thermistor from its holder 5 Pull out the outdoor heat exchanger temperature thermistor from its holder 6 Pull out the ambient temperature thermistor from its holder 5 Removing outdoor fan motor 1 Remove the top panel cabinet and service panel Refer to 1 2 Disconnect the following connectors Inverter P C board CN931 and CN932 Fan motor 3 Remove the propeller 4 Remove the screws fixing the fan motor 5 Remove the fan motor 6 Removing the compressor and 4 way valve 1 Remo
26. 2 Heating 6 72 Refrigeration oil Model Model RC0J60 AA Fan motor Cooling 0 32 Gurren Heating 0 32 Dimensions W x H x D 840 x 850 x 330 Weight 54 Dehumidification Cooling High Cooling Med Low High Heating Med Low Cooling d Heating High Cooling Med Low High Heating Med Low Power factor 1 Total Electrical data Compressor Current 1 0 45 NEO22 Air flow 321 Sound level amp 1 Special remarks Fan speed Fan speed regulator Refrigerant filling capacity R410A NOTE Test conditions are based on AS NZS 3823 1 1 Cooling Indoor Dry bulb temperature 27 C Wet bulb temperature 19 Outdoor Dry bulb temperature 35 C Wet bulb temperature 24 C Heating Indoor Dry bulb temperature 20 C Wet bulb temperature 15 5 C Outdoor Dry bulb temperature 7 C Wet bulb temperature 6 C Refrigerant piping length one way 5 m 1 Measured under rated operating frequency 532 i Outdoor model MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Power supply Single phase 230 V 50 Hz Capacity Cooling 6 0 1 5 7 5 7 1 2 4 8 7 8 0 2 4 9 2 7 8 2 4 9 2 Rated frequency Min Max Heating 6 8 2 0 9 3 8 1 2 2 9 9 9 0 2 2 11 1 Breaker Capacity 20 Cooling 1 760 2 130 2 460 Heating 1 770 2 110 2
27. 2 28 0 40 2042 23 18 5 88 4 00 0 68 1725 5 40 3 67 0 68 1830 4 98 3 39 0 68 1901 23 20 6 18 3 46 0 56 1795 5 76 3 23 0 56 1883 5 34 2 99 0 56 1989 23 22 6 54 2 88 0 44 1866 6 12 2 69 0 44 1971 5 70 2 51 0 44 2042 24 18 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE71VA MUZ GE71VAD CAPACITY 7 1 kW SHF 0 79 INPUT 2130 W OUTDOOR DB C suc sur meur INPUT a a SHF neur 21 18 8 34 5 09 0 61 1704 7 99 4 87 0 61 1789 7 67 4 68 0 61 1874 7 38 4 50 0 61 1960 22 18 8 34 5 42 0 65 1704 7 99 5 19 0 65 1789 7 67 4 98 0 65 1874 7 38 4 80 0 65 1960 22 20 8 70 4 61 0 53 1789 8 34 4 42 0 53 1896 8 09 4 29 0 53 1938 7 81 4 14 0 53 2024 22 22 9 05 3 71 0 41 1853 8 73 3 58 0 41 1970 8 52 3 49 0 41 2024 8 17 3 35 0 41 2109 23 18 8 34 5 76 0 69 1704 7 99 5 51 0 69 1789 7 67 5 29 0 69 1874 7 38 5 09 0 69 1960 23 20 8 70 4 96 0 57 1789 8 34 4 76 0 57 1896 8 09 4 61 0 57 1938 7 81 4 45 0 57 2024 23 22 9 05 4 07 0 45 1853 8 73 3 93 0 45 1970 8 52 3 83 0 45 2024 8 17 3 67 0
28. 2 76 1235 3 78 2 53 0 67 4 33 2 38 1285 4 03 2 22 0 55 4 58 i 1336 4 28 1 84 0 43 3 78 2 68 0 71 4 03 2 38 0 59 3 78 2 84 0 75 4 03 2 54 0 63 4 28 2 18 0 51 3 78 2 99 0 79 4 03 2 70 0 67 4 28 2 36 0 55 3 78 3 14 0 83 4 03 2 86 0 71 4 28 2 53 0 59 4 54 2 13 0 47 3 78 3 29 0 87 4 03 3 02 0 75 4 28 2 70 0 63 3 78 3 44 0 91 4 03 3 19 0 79 4 28 2 87 0 67 4 54 2 49 0 55 4 79 2 06 0 43 3 78 3 59 0 95 4 03 3 35 0 83 4 28 3 04 0 71 4 54 2 68 0 59 4 79 2 25 0 47 3 78 3 74 0 99 4 54 2 86 0 63 4 79 2 44 0 51 4 03 3 67 0 91 4 28 3 38 0 79 4 54 3 04 0 67 4 79 2 63 0 55 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W WB Wet bulb temperature 532 4 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE50VA CAPACITY 5 0 kW SHF 0 76 INPUT 1640 W OUTDOOR DB C 2 0 7 3 INPUT 0 58 1443 5 20 3 02 058 1509 0 46 1492 5 50 2 53 0 46 1509 1558 1624 1509 1558 1624 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532
29. 2 9 97 rete 25 gt 84 10 5 1244 12 1 92 1104 122 8 06 M 7 0 8 10 4 101 7 7 914 1024505 o 5 6 704 83 8 0 6 2 7 8 8 1 0 4 aq ea a QB 20 15 10 5 0 5 10 15 lt lt 4454 lt lt lt lt lt lt lt lt lt lt lt lt 22 2222 aa 2 2 2 2 2 22 2 2 2 Outdoor intake air Wet bulb temperature C NN 10 oo NN INNNN NN NNN NN NN NNN 22 222 22 22 222 Total input Heating at Rated frequency 18 2 227 27 0 26 2 20 05 2385 264 13 16 8 21 04 249 4 2414 18 5 21 94 2444 12 26 2 20 g 154 192 228 221 1 169 201 22348 1 1 BS 15 20 E 140 17 5 207 201 154 183 4 203 110 m LHP 126 1 15 74 187 184 13 94 164 183 09 Lie t O 2 25 11 2 4 1404 1664 164 12 3 146 162 2 EE 3 o gt 2 T 8 984 1224 145 1414 1084 128 142 907 2 5 84 10 5 1244 121 92 11 04 1224806 5 70 87 104 10 1 77 9 14 102 05 E 56 70 83 8 0 6 2 7 3 81 e 3 DI a 20 15 10 5 0 5 10 15 lt lt lt lt lt lt lt lt lt lt lt
30. 21 18 9 40 5 36 0 57 2048 9 00 5 13 0 57 2150 8 64 4 92 0 57 2253 8 32 4 74 0 57 2355 22 18 9 40 5 73 0 61 2048 9 00 5 49 0 61 2150 8 64 5 27 0 61 2253 8 32 5 08 0 61 2355 22 20 9 80 4 80 0 49 2150 9 40 4 61 0 49 2278 9 12 4 47 0 49 2330 8 80 4 31 0 49 2432 22 22 10 20 3 77 0 37 2227 9 84 3 64 0 37 2368 9 60 3 55 0 37 2432 9 20 3 40 0 37 2534 23 18 9 40 6 11 0 65 2048 9 00 5 85 0 65 2150 8 64 5 62 0 65 2253 8 32 5 41 0 65 2355 23 20 9 80 5 19 0 53 2150 9 40 4 98 0 53 2278 9 12 4 83 0 53 2330 8 80 4 66 0 53 2432 23 22 10 20 4 18 0 41 2227 9 84 4 03 0 41 2368 9 60 3 94 0 41 2432 9 20 3 77 0 41 2534 24 18 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE80VA CAPACITY 8 0 kW SHF 0 75 INPUT 2560 W OUTDOOR DB C suc sur meur INPUT a INPUT 21 18 7 84 4 47 0 57 2509 7 20 4 10 0 57 2662 6 64 3 78 0 57 2765 22 18 7 84 4 78 0 61 2509 7 20 4 39 0 61 2662 6 64 4 05 0 61 2765 22 20 8 24 4 04 0 49 2611 7 68 3 76 0 49 2739 7 12 3 49 0 49 2893 22
31. 550 Power input 1 Total Running current 1 Cooling 7 8 9 4 10 8 Total Heating 7 8 9 5 11 2 Cooling 98 99 98 99 Heating 98 97 99 Starting current 1 Total A 7 8 9 5 11 3 Coefficient of performance Cooling 3 40 341 3 12 COP 1 Total Heating 3 84 3 54 Model SNB130FGBMT SNB172FEKM Output W 900 1 200 Cooling A 6 62 6 44 9 89 9 39 Heating 6 37 6 34 9 83 Refrigeration oil Model Model RC0J60 BC Fan motor Current s Cooling 0 84 0 93 0 83 Heating Dimensions W x Hx D 840 x 880 x 330 Weight Dehumidification Cooling 22 High Cooling Med Low High Heating Med Low Cooling d Heating High Cooling Med Low High Heating Med Low Power factor 1 Total Electrical data Compressor Current 1 0 35 FV50S 0 4 FV50S Air flow 21 Sound level 1 Special remarks Fan speed Fan speed regulator Refrigerant filling capacity R410A NOTE Test conditions are based on AS NZS 3823 1 1 Cooling Indoor Dry bulb temperature 27 C Wet bulb temperature 19 Outdoor Dry bulb temperature 35 C Wet bulb temperature 24 C Heating Indoor Dry bulb temperature 20 C Wet bulb temperature 15 5 C Outdoor Dry bulb temperature 7 C Wet bulb temperature 6 C Refrigerant piping length one way 5 m 1 Measured under
32. C Wet bulb temperature 19 Outdoor Dry bulb temperature 35 C Wet bulb temperature 24 C Heating Indoor Dry bulb temperature 20 C Wet bulb temperature 15 5 C Outdoor Dry bulb temperature 7 C Wet bulb temperature 6 C Refrigerant piping length one way 5 m 1 Measured under rated operating frequency 532 Outdoor model MUZ GE35VA MUZ GE35VA2 41 MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD Power supply Single phase 230 V 50 Hz Capacity Cooling 3 5 1 4 3 9 3 5 1 1 4 0 4 2 0 9 4 8 Rated frequency Min Max Heating 4 0 1 4 4 8 4 0 1 6 5 3 5 4 1 4 6 0 Breaker Capacity 10 Cooling 1 010 920 1 260 Power input 281 Total Heating 1 030 990 1 540 Running current 31 Cooling 4 7 4 4 5 8 A Total Heating 4 8 4 6 7 0 Cooling 93 91 94 Power factor 1 Total Heating 93 Electrical data 94 96 Starting current 1 Total A 4 8 4 6 7 0 Cooling 3 47 Coefficient of performance 3 80 3 33 COP 1 Total Heating 3 88 4 04 3 51 Model KNBO92FFAHC KNBO92FNDHC SNB130FGBHT Output W 900 Cooling 4 10 3 76 5 19 Compressor A Current 421 Heating 4 30 4 06 6 38 Refrigeration oil Model 0 32 NEO22 0 45 NEO22 Model RC0J50 DB RC0J50 EA Fan motor
33. E 6 212392919 APIS JOOPUT 941 jnoqy T ds ca adi S8310N re 1 9 9 0120882 50900011 11913 8191 na TW T al f 18819 1989 m 1 101 WI fl OW 98 EL 08 08 7274 U31U3ANI E CDI N O3 LAS GET 191 192 092 92 9901 0 532 MUZ GE50VA2 94119384802 LINN 800081 01 34348 1102813 114415 13804 HOS ADE M 4 uOLSINH3Hl dN3l 9919 301393 91 1V3H 8000100 1109 3A1VA 131 0151 8 1 4831 1N3IGNV 5914 031 031 uo1SINU3Hl dd 3 7914 391110 H3M0d 20831 1109 9NISUJA3U 7Sfe 151 8 1 dW3l 98 510 e91H JINGOW H3MOd WdI 0 69H AV 138 19X 9X uOISIWB3HI 1508430 1318 1 350 1063 1084 70 4 045 1 1081 011931084 1109819 59214 9214 A052 1021 3504 193 801515 1 H3MOd ONTHOLIMS 16881 3010 NV4 311008 30010 5980 1980 39018 lVNINU3I 281 181 80553844409 OW 80113949 ONTHLOOWS 99 02 199 JAN 108448 JAVN 10845 108448 BULIIM Plat 104 NIG JW MIU0 S10 INPUOI 18dd02 95070 BUT21A188 10 5UIJIA 21112919 1
34. HM _ i 2225 A Outputto 9 18 x drive ze othe odo gt compressor YL hir a TEETH LDU ES 920 88 230 VAC JO ie l LDV 19 ss wr b mm e LDW pod cos A Das RET ar RU E al TEA a MT AR 7 S6 ETE EN HR CU E dx Ong b UE omg 5 Hs ET B vU d eA CR wm 5 4 f MEM Din E wig cms bs IB tH EH E 5 mE 9 5 8 cN724 LED od Ds 5 5 JS JK 85 52 0 LEV MUZ GE25 33 35 42 Jumper wire 9 w 9 E amp connector VA 35VA2 for pre heat Front side of unit 25 og EE Jumper wire for control setting E 8 o 25 5 dc po changing defrost 99 Sis 5 232545 28 setting 848 Gis 258 SEE OA TIEE MUZ GE25 35 42VAD DET i229 552 285 Jumper wire for 5 5 changing demand Resistance kQ Defrost thermistor RT61 Ambient temperature thermistor RT65 Outdoor heat exchanger temperature thermistor RT68 10 0 10 20 30 Temperature OBH532E Discharge temperature thermistor RT62 0 0 10 20 30 40 50 60 70 80 90 100 1 110 120 Temperature c 82 Resistance kQ response capability Fin temperature thermistor RT64 Eel EE 8 EL peer 0 0 10 20 30 40 50 60 70 80 Temperature MUZ GE50VA MUZ GE50VA2
35. MUZ GE50VAD Back side of unit 230 VAC lt gt F901 Fuse T3 15AL250V Output to drive compressor LDU LDV LDW DB61 C63 C62 C61 F701 CN721 Bus bar voltage Smoothing Smoothing Smoothing Fuse R V coil 260 300 VDC Capacitor capacitor capacitor T3 15AL250V 230 VAC 910 F801 Fuse T3 15AL250V Front side of unit Defrost thermistor RT61 Ambient temperature thermistor RT65 TE ER eje do E i o PAS p of B 9 lt 2 2 2 o o ogo Dae 14025 5 E E i 3 ez 1 ey E 4 i ook gt 25556569 9 c TU gt Vi n 999 an AE eo 2 oss 3
36. MUZ GE50VAD MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Part name Check method and criterion Defrost thermistor RT61 Fin temperature thermistor RT64 Measure the resistance with a tester Ambient temperature thermistor RT65 Refer to 11 6 Test point diagram and voltage 1 Inverter P C board for the chart of thermistor Outdoor heat exchanger temperature thermistor RT68 Measure the resistance with a tester Before measurement hold the thermis Discharge temperature tor with your hands to warm it up thermistor RT62 Refer to 11 6 Test point diagram and voltage 1 Inverter P C board for the chart of thermistor Measure the resistance between terminals using a tester Temperature 10 40 C Normal WHT RED BLK MUZ GES3VA MUZ GEA2SOISOVA MUZ GE71B0VA Compressor 125 12 17 NUZ GEAISIQVAD MUZ GETIIBIAD 1 36 1 93 1 22 1 74 1 52 2 17 1 36 1 93 0 78 1 11 0 87 1 18 Measure the resistance between lead wires using a tester Temperature 10 40 C WHT RED BLK Normal Q Color of lead MUZ GE25 33 35VA 7 GEA2VA MUZ GE50 60 71 80VA Outdoor fan motor wire MUZ GE35VA2 MUZ GE42vAp MUZ GES0 80VA2 MUZ GE25 35VAD MUZ GE50 60 71 80VAD RED BLK BLK WHT 29 42 11 16 12 17 WHT RED
37. ON Yes Replace the 4 way valve Unit operates HEAT mode even if it is set to COOL mode Disconnect connector between Is there 230 VAC between the and the intelligent CN721 MUZ GE25 33 35 42 50 CN602 MUZ GE60 71 80 and tne wage Replace tne inverter inverter P C board 3 minutes after the 2222 press EMERGENCY OPERATION switch once COOL mode power supply is turned ON No 532 5 D Check of outdoor fan motor MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Disconnect CN932 from the inverter P C board and measure the resistance of the outdoor fan motor Is the resistance of outdoor fan motor normal 611 to 11 4 No Replace the outdoor fan motor Yes Replace the inverter P C board MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Disconnect the connectors CN931 and CN932 from the inverter P C board Check the connection between the connector CN931 and CN932 Is the resistance between each ter minal of outdoor fan motor normal Yes Refer to 11 4 Y No Disconnect CN932 from the inverter P C board and turn on the power supply Y Rotate the outdoor fan motor manually and measure the voltage of CN931 Between 1 and 5 B
38. Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 T PERFORMANCE DATA COOL operation at Rated frequency MUZ GE35VA CAPACITY 3 5 kW SHF 0 85 INPUT 1010 W OUTDOOR DB C NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 is PERFORMANCE DATA COOL operation at Rated frequency MUZ GE35VA2 MUZ GE35VAD CAPACITY 3 5 kW SHF 0 82 INPUT 920 W OUTDOOR DB C NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 E PERFORMANCE DATA COOL operation at Rated frequency MUZ GE35VA2 MUZ GE35VAD CAPACITY 3 5 kW SHF 0 82 INPUT 920 W OUTDOOR DB C NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W WB Wet bulb temperature 532 i PERFORMANCE DATA COOL operation at Rated frequency MUZ GE42VA MUZ GE42VAD CAPACITY 4 2 kW SHF 0 77 INPUT 1260 W OUTDOOR DB C
39. R V coil 4 heating ON 5 Capillary tube cooling with strainar 93 6x92 4x50 Refrigerant pipe 26 35 Refrigerant flow in cooling with heat insulator Refrigerant flow in heating MUZ GE60VA MUZ GE60VAD Refrigerant pipe 215 88 with heat insulator 4 way valve Stop valve with service port Flared connection Discharge Ambient temperature temperature thermistor thermistor thermistor RT65 RT61 Compressor Outdoor heat exchanger temperature thermistor Flared connection B Strainer LEV Strainer 100 100 R V coil heating Ya Capillary tube cooling ORF g4 0xg2 4x100 Refrigerant pipe 26 35 Refrigerant flow in cooling with heat insulator Refrigerant flow in heating 532 MUZ GE71VA MUZ GE71VAD Unit mm MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Muffler Refrigerant pipe 215 88 with heat insulator Stop valve with service Flared connection Discharge Ambient temperature temperature thermistor Defrost thermistor RT62 thermistor RT65 Compressor Outdoor heat exchanger temperature thermistor RT68 Flared connection Strainer LEV Strainer 100 100 R V coil 1 heating ON Capillary tube cooling OFF 24 0 2 4 100 Refrigerant pipe 29 52 Refrigerant flow in cooling with heat insulator Refrigerant flow in heating MAX REFRIGERANT PIPING LENGTH and MAX HEIGHT DIFFERENCE Refrigerant
40. connecting wire Y Is there rated voltage between indoor terminal block S1 and S2 Confirmation of power voltage No Yes Is there amplitude of 10 to 20 VDC between indoor terminal block S2 and S3 Confirmation of serial signal No Yes Y A Turn OFF inverter controlled lighting and JPG GND on the indoor electronic control P C board Is there 2 VDC or less between CN10A equipment Turn OFF the power supply and then Yes turn ON again Press EMERGENCY OPERATION MM CN10A and JPG GND the indoor electronic control board Is there 2 VDC or less between Is there 2 VDC or less between CN10A and JPG GND on the indoor electronic control P C board on P C Yes P dis Reinstall either the unit or the light away from each other Attach a filter on remote Replace the indoor power P C board and the indoor terminal P C board Is serial signal error indicated 6 minutes later Replace the indoor elec tronic control P C board No control receiv ing section of the indoor unit 79 532 MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD OFF the power supply 2 Is there rated voltage in the power supply No Check the power supply Y Yes Turn ON the power supply
41. flash 2 5 seconds OFF Temperature of fin temperature thermistor on the inverter P C board exceeds 75 80 C or temperature of P C board temperature thermistor on the inverter P C board exceeds 70 75 C Check around the outdoor unit Check the outdoor unit air passage Refer to 11 5 0 Check of outdoor fan motor Outdoor fan motor Outdoor fan has stopped 3 times in a row within 30 seconds after outdoor fan start up Refer to 11 5 0 Check of outdoor fan motor Refer to 11 5 O Check of inverter P C board Nonvolatile memory data 5 time flash 2 5 seconds OFF Nonvolatile memory data cannot be read properly Replace the inverter P C board Power module 6 time flash 2 5 seconds OFF The interphase short circuit occurs in the output of the intelligent power module IPM IGBT module IC700 power module IPM 1 The compressor winding shorts circuit Refer to 11 5 How to check inverter compressor 10 time flash 2 5 seconds OFF Discharge temperature Temperature of discharge temperature thermistor has been 50 C or less for 20 minutes Refer to 11 5 Check of LEV Check the refrigerant circuit and the refrigerant amount NOTE Blinking patterns of this mode differ from the ones of Troubleshooting check table 11 3 532 xd Intelligent power module IPM MUZ GE25VA IGBT module 1 700 MUZ GE60 71 80VAD Power modul
42. its holder 6 Pull out the ambient temperature thermistor from its holder Removing outdoor fan motor 1 Remove the top panel cabinet and service panel Refer to 1 2 Disconnect the following connectors Inverter P C board CN931 and CN932 Fan motor 3 Remove the propeller 4 Remove the screws fixing the fan motor 5 Remove the fan motor 6 Removing the compressor and 4 way valve 1 Remove the top panel cabinet and service panel Refer to 1 2 Remove the back panel Refer to 1 3 Remove the inverter assembly Refer to 2 4 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 MPa 5 Detach the brazed part of the suction and the discharge pipe connected with compressor 6 Remove the compressor nuts 7 Remove the compressor 8 Detach the brazed parts of 4 way valve and pipe Photo 5 532 Photo 6 Outdoor heat exchanger tempera ture thermistor Ambient temperature thermistor Screws of the outdoor fan motor Photo 8 Brazed part of the discharge pipe Discharge temperature thermistor Brazed part of the suction pipe 12 3 MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD NOTE Turn OFF power supply before disassembly PHOTOS OPERATING PROCEDURE 1 Removing the cabinet Photo 1 1 Remove the screws of the service panel S fthet 2 Remove the scre
43. operational frequency The operational frequency of compressor Hz of compressor Hz of compressor Hz of compressor Hz MUZ GE60VA MUZ GE60VAD 35 Correction of Cooling capacity 20 Correction of Cooling input Correction of Heating capacity 27 Correction of Heating input 2 8 8 815 15 81 5 8 1 5 E 5 8 5 91 0 81 0 31 0 810 8 8 8 8 2 2 90 5 50 5 90 5 0 5 oO c c 5 o E o 0 0 0 0 0 0 n 50 100 150 0 50 100 150 0 50 100 150 100 The operational frequency The operational frequency The operational frequency P of compressor Hz of compressor Hz of compressor Hz of compressor Hz MUZ GE71VA MUZ GE71VAD Correction of Cooling capacity Correction of Cooling input 54 Correction of Heating capacity Correction of Heating input Capacity correction factors Capacity correction factors Input correction factors e e oc EN a Capacity correction factors o o o o a 2 0 1 5 1 0 0 5 0 0 50 100 150 0 0 50 100 1 50 100 1 The operational frequency The operational frequency The operational frequency The operational frequency of compressor Hz of compressor Hz of compressor Hz of compressor Hz MUZ GE80VA 4 Correction of Cooling capacity Correction of Cooling input Correction of Heating capacity Correction of Heating input 0 50 100 150 100 The operational frequency The operational frequency The op
44. p 8 514604 654 80 7 94 7 54 7 21694 8047 74 9 12 22 56 8 26 24 20 55 46455 4 594 724 714 684 6 54 6 3 7 2 70 5 1 1 18 30 2 28 42149 5 34 654 6 4 614 5 8 5 6 6 5 J 6 3 9 1 0 8 55 3 7444 4 47 5 74 5 74 5 44 524 5 0 57 5 6 5 0 9 k F 8 334394 414 5 04 504484 46 44 50 49 08 Indoor intake air Wet bulb emperature C z 1111111111111111111 no 10 5 0 5 10 15 20 25 30 35 40 45 S 2 s 85 45 se 33 PG QQ 6 62 6 Outdoor intake air Dry bulb temperature C Wu wu 99 9 1999 9 99199 99 9 199 NN NN NN NN N NN 22 2 DD 2 22 zz gt gt gt gt gt Heating capacity at Rated frequency 18 2 22 7 27 0 26 2 20 0 23 8 26 4 1 3 15 20 16 8 21 0 249 241 18 54 219 244 12 26 154 192 2284 2214 169 2014 22342 14 140 17 5 20 74 20 14 1544 183 203 10 m 12 6 15 7 187 181 13 9 16 4 18 3 0 9 F009 4221 5 55 41 2 4 140 16 6 161 4 123 1464 162 9 TE 5 0 9 22 2 35 984 1224 1454 1414 1084 1284 14
45. piping m Max Length Max Height difference Piping size O D mm Gas Liquid MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Indoor unit Max Height difference B Max Length A Outdoor unit 532 ADDITIONAL REFRIGERANT CHARGE R410A Refrigerant piping length one way Model Outdoor unit precharged 8m 10m 11m 12m 13m MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA 800 MUZGE35VA2 MUZGE35VAD MUZ GE42VA MUZ GE42VAD Calculation X g 3 Model Outdoor unit precharged 0 g m x Refrigerant piping length m 7 Refrigerant piping length one way 10m 15m 20m 25m MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Calculation X g 20 g m x Refrigerant piping length m 7 Model 1 550 Outdoor unit precharged 60 160 260 Refrigerant piping length one way 10m 15m 20m 25m MUZ GE60VA MUZ GE60VAD Calculation 20 g m Refrigerant piping length m 10 Model 1 550 Outdoor unit precharged 0 100 Refrigerant piping length one way 200 300 10m 15m 20m 25m MUZ GE71VA MUZ G
46. rated operating frequency 532 3 Specifications and rated conditions of main electric parts Model MUZ MUZ MUZ MUZ MUZ MUZ MUZ MUZ MUZ MUZ MUZ Item GE25VA GE25VAD GE33VA GE35VA IGE35VA2IGE35VAD GE42VA GE42VAD GE50VA GE50VA2 GE50VAD Smoothing C62 C63 600 uF 620 uF 420 V capacitor C61 600 uF 620 uF 420 V Diode module DB61 15 A600 V 25 A600 V DB65 25 A 600 V F62 Elise F61 T20AL250V F701 F801 F901 T3 15AL250V F601 F880 F901 Intelligent 1C932 power module ONDE module IPM 15A600 V 20 A 600 V Spann valve LEV 12 VDC Reamer L61 18 mH 23 mH L Power factor controller PFC Gurentlimiting PTC64 PTC65 330 Terminal block TB1 TB2 3P X63 3A250V Relay X64 20A250V X601 X602 R V coil 2184 220 240 VAC IGBT TR821 30A600 V x1 Intelligent power module MUZ GE25VA 1 Power module Other models MUZ GE35 50VA Specifications and rated conditions of main electric parts MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 560 yF 450 V Diode module Fuse T2 0AL250V T2 0AL250V T2 0AL250V T3 15AL250V Intelligent power module 5A 600 V 20 A 600 V 20 A 600 V 20 A 600 V IGBT module 20 A 600 V 20 A 600 V 20 A 600 V
47. seconds OFF OBH532E DC voltage of inverter cannot be detected normally 69 Refer to 11 5 How to check in verter compressor 11 3 TROUBLESHOOTING CHECK TABLE Symptom LED indication Abnormal point Condition Condition Remedy Outdoor unit operates 1 time flash 2 5 seconds OFF Frequency drop by current protection Current from power outlet is nearing breaker capacity 3 time flash 2 5 seconds OFF Frequency drop by high pressure pro tection Temperature of indoor coil thermistor exceeds 55 C in HEAT mode compressor frequency lowers Frequency drop by defrosting in COOL mode Indoor coil thermistor reads 8 C or less in COOL mode com pressor frequency lowers The unit is normal but check the following Check if the indoor filters are clogged Check if the refrigerant is short Check if the indoor outdoor unit air circulation is short cycled 4 time flash 2 5 seconds OFF Frequency drop by discharge tempera ture protection Temperature of discharge temperature thermistor exceeds 111 C compressor frequency lowers Check the refrigerant circuit and the refrigerant amount Refer to 11 5 9 Check of LEV Refer to 11 5 Check of outdoor thermistors Outdoor unit operates NOTE 1 The location of LED is illustrated at the right figure Refer to 11 6 1 ed during normal operation 2 LED is light The flashing frequenc
48. thermistor from its holder 87 532 Photo 3 Screws of the terminal block support and the back panel Screws of the heat sink support and the separator v b Photo 4 Inverter assembly Inverter P C board Screw of the terminal block support Heat sink P C board Terminal block support Screw of the Heat sink support earth wire Screw of the Photo 5 R V coil Discharge temperature thermistor OPERATING PROCEDURE PHOTOS 5 Removing outdoor fan motor 1 Remove the cabinet and panels Refer to 1 2 Disconnect the following connectors Outdoor heat Inverter P C board p rait exchanger tempera CN932 Fan motor _ ture thermistor 3 Remove the propeller nut 4 Remove the propeller 5 Remove the screws fixing the fan motor 6 Remove the fan motor 6 Removing the compressor and 4 way valve 1 Remove the cabinet and panels Refer to 1 2 Remove the inverter assembly Refer to 2 3 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 MPa 4 Detach the brazed part of the suction and the discharge pipe Photo 7 Screws of the outdoor fan motor connected with compressor 5 Remove the nuts of compressor legs 6 Remove the compressor 7 Detach the brazed part of pipes connected with 4 way valve Propeller Photo 8 Brazed parts of 4 way valve
49. 101 018 9311 6310N Off 2 EE o oji 90108812 560 14110 1191 EHINI PHINI 1 t 10819 031 8708 7274 g3183ANI 0 62H 22 532 MUZ GE50VAD 98113380 LINN 800081 OL 31348 1112812 114415 13804 2409 1060 N 7 15 465 cal 0 1 ENT Tal 301SIMH3HI ANIL og 80124938 191 1V3H 8000100 1109 3AYVA NOISNVdX3 131 WOISIWS3HI dW3I IN3I8AV 8913 31 31 15 1 9831 NTA 12130 8300 20821 1102 3X WA SNISIBASU 752 BOISINH3HI dW3l 398VHOSIQ 2218 31n00H 83800 OS60H EE 9 69X WOISIWSJHI 1508430 1913 105216151 ISNA 1064 1084 101i 04501 1081 NOI1910Hd 1110812 59214 99014 10521 021 3811 193 HOISTSNVUL H3MOd ONTHOLINS 12881 HOION NV3 310008 30010 5980 1980 0018 WNIREI 281 TAL 80553Hd00 W WOLIOVdV2 ONTHIOONS 607010 108845 IW 108445 108445 BUTIIM p 8TJ 104 JW 51100 510131 02 184402 95 70 50121198 101 5UIJIA 211128 8 IUN 2914 1818 100pUI 943 0 DUIIIM e o 211129 8 8PIS 100 1 ay jnoqy T
50. 183ANI 1064 0884 1081 031 a ET s IU 2 8 1 034 038 234 uS zz ali Mec proa A MTA NYY 119119 ea 11 8 1086 N AlddNS 830 24 532 MUZ GE80VA2 41014 18018131 S OQUAG 5UIJ A PJAT UO 510 2npuoJ 184402 851 0 amp UL31A185 10 MPJ5PIP 9111299 101 JOOPUT 34 0 1343 GUTJIM 211129 8 OPIS 100put 34 1noqy 5310 1109 0109105 AWA 91583138 Ste NOT12310Ud 1112812179214 Av138 v9x 33911081409 801311 U3MOd 2486 AW 138 209X 8OION NVd JW AW 138 109X H0SS3UdNOO 8045 1 1081 1102 10154743 131 32018 TWNIWYSL RAL 181 012 38 1 WOISTRESHI 431 gg NOON U3NOd INGOITTSINI Wal u39NVHOX 13H 8000100 111008 U3MOd 18391113111 8691 1018 1 1 0831 1831889 5818 0841461 81 3504 1063 UOISIWH3HI dW31 NIJ 7914 10821481 61 3514 0884 1015 1 1 4831 3
51. 22 8 72 3 23 0 37 2714 8 16 3 02 0 37 2867 7 60 2 81 0 37 2970 23 18 7 84 5 10 0 65 2509 7 20 4 68 0 65 2662 6 64 4 32 0 65 2765 23 20 8 24 4 37 0 53 2611 7 68 4 07 0 53 2739 7 12 3 77 0 53 2893 23 22 8 72 3 58 0 41 2714 8 16 3 35 0 41 2867 7 60 3 12 0 41 2970 24 18 NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 id PERFORMANCE DATA COOL operation at Rated frequency MUZ GE80VA2 MUZ GE80VAD CAPACITY 7 8 kW SHF 0 76 INPUT 2460 W OUTDOOR DB C 25 27 SHF INPUT Q SHC INDOOR WB C NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE80VA2 MUZ GE80VAD CAPACITY 7 8 kW SHF 0 76 INPUT 2460 W 35 40 46 SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA HEAT operation at Rated frequency MUZ GE25VA
52. 42VAD COOLING 47 9 49 COOLING 50 9 HEATING 48 0 0 HEATING 51 90 90 80 80 20 70 78 f 70 NC 70 NC 70 60 50 50 40 40 30 60 1 i i pee UNC 60 ct P BENE 30 OCTAVE BAND SOUND PRESSURE LEVEL 048 20 20 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB i INC 20 i i i i i i I T 10 10 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENGIES Hz 532 E MUZ GE50VA MUZ GE50VA2 FUNCTION SPL dB A LINE MUZ GE50VAD COOLING 54 HEATING 56 90 80 20uPa 60 50 40 30 NC 30 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB HH T NC 20 P NC 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES H
53. 4403 851170 BUTLITAJAS 10 6s 29111814 5910 8518 an psetp sursim 21101212 ITUN 23 41 JOOPUT 84 0j 1818 501118 gt Ave 21 225 Sly af de 3 e 31113818 15 J00pUI 841 jnoqy T 2 2 PRORA UEM M 5310 q o5 14 1 BVH 1102419 Y 14110 11913 EPIN 01901 le an 40s Oe amp Tal OBH532E MUZ GE35VA2 MUZ GE25VA m 9N1123NN02 LINA 80001 01 833398 1119812 9415 83804 2405 08 M 1 N 2 2 19 MIND Tal 113 01 HOISINHJHLl dW3l 8813 4019938 191 u39NVH2X3 1V3H 8000100 1102 JAWA NOISNVdX3 131 uO1SINH3HI 4431 1N3IONV 9914 031 031 015 1 31 13 7915 311008 W3MOd 28601 WdI 1102 SATWA 51 MOISINU3HI 98 510 2813 321430 H3MOd 20831 AVT3U 9X 10151 1 1504330 1313 1086181 81 3514 1064 1084 104 045 1 1081 011931084 1119319 59214 79214 0058017001 93513 94 WOISISNVHI H3MOd 9NIHOLIMS 16841 3010 3 AW 310004 30010 8980 1980 39018 IVNINH3I 281 181 H0553HdN02 OW HOIIOVdVJ 9NIHIOONS
54. 45 2109 24 18 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 4 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE71VA MUZ GE71VAD CAPACITY 7 1 kW SHF 0 79 INPUT 2130 W OUTDOOR DB C suc sur meur INPUT a INPUT 21 18 6 96 4 24 0 61 2087 6 39 3 90 0 61 2215 5 89 3 59 0 61 2300 22 18 6 96 4 52 0 65 2087 6 39 4 15 0 65 2215 5 89 3 83 0 65 2300 22 20 7 31 3 88 0 53 2173 6 82 3 61 0 53 2279 6 32 3 35 0 53 2407 22 22 7 74 3 17 0 41 2258 7 24 2 97 0 41 2386 6 75 2 77 0 41 2471 23 18 6 96 4 80 0 69 2087 6 39 4 41 0 69 2215 5 89 4 07 0 69 2300 23 20 7 31 4 17 0 57 2173 6 82 3 89 0 57 2279 6 32 3 60 0 57 2407 23 22 7 74 3 48 0 45 2258 7 24 3 26 0 45 2386 6 75 3 04 0 45 2471 24 18 NOTE Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature OBH532E PERFORMANCE DATA COOL operation at Rated frequency MUZ GE80VA CAPACITY 8 0 kW SHF 0 75 INPUT 2560 W OUTDOOR DB C SHC INPUT INPUT INPUT a SHF neur
55. 5 230 230 CN931 9 Signal of 4 outdoor fan ES motor Er sall CN724 LEV connector CN932 8 Output to ED drive outdoor CN671 Defrost thermistor RT61 CN671 F901 Fuse Discharge temperature 4 thermistor RT62 E CN671 Outdoor heat exchanger tem perature thermistor RT68 M CN672 3 Ambient temperature thermistor RT65 CN673 Fin temperature thermistor RT64 JS Jumper wire for changing defrost setting JK Jumper wire for pre heat control setting T3 15AL250V F880 Fuse T3 15AL250V JP715 325 370 VDC Defrost thermistor RT61 Ambient temperature thermistor RT65 0 Outdoor heat exchanger temperature thermistor RT68 Discharge temperature thermistor RT62 Resistance kO Resistance k 0 0 0 20 10 0 10 20 30 40 ERE E E 100 110 120 0 10 20 30 40 50 80 1 70 80 Temperature Temperature OBH532E 12 DISASSEMBLY INSTRUCTIONS lt Terminal with locking mechanism Detaching points The terminal which has the locking mechanism can be detached as shown below There are two types refer to 1 and 2 of the terminal with locking mechanism The terminal without locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching 1 Slide the sleeve and check if there is a locking lever or not 2 The termin
56. 641 pin3 and pin4 Fin temperature Between CN642 pin1 and pin2 Inverter P C board Ambient temperature Between CN643 pin1 and pin2 Outdoor heat exchanger temperature Between CN644 pin1 and pin3 MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Thermistor Connector Pin No Board Defrost Between CN671 pin1 and pin2 Discharge temperature Between CN671 pin3 and pin4 Fin temperature Between CN673 pin1 and pin2 Inverter P C board Ambient temperature Between CN672 pin1 and pin2 Outdoor heat exchanger temperature Between CN671 pin5 and pin6 Check of R V coil First of all measure the resistance of R V coil to check if the coil is defective Refer to 11 4 x In case 721 MUZ GE25 33 35 42 50 CN602 MUZ GE60 71 80 is disconnected or coil is open voltage is generated between the terminal pins of the connector although no signal is being transmitted to R V coil Check if CN721 MUZ GE25 33 35 42 50 CN602 MUZ GE60 71 80 is connected Unit operates COOL mode even if it is set to HEAT mode cieoonnect eonnector ie tie isthere230 VAC between module CN721 MUZ GE25 33 35 42 50 Replace the inverter Turn ON the power supply and press CNG02IMUZ GE60 71 80 and On No P C board the inverter P C board 3 minutes after the EMERGENCY OPERATION switch i 2 twice HEAT mode power supply is turned
57. 8 6 75 4 05 0 60 1478 6 48 3 89 0 60 1549 6 24 3 74 0 60 1619 22 18 7 05 4 51 0 64 1408 6 75 4 32 0 64 1478 6 48 4 15 0 64 1549 6 24 3 99 0 64 1619 22 20 7 35 3 82 0 52 1478 7 05 3 67 0 52 1566 6 84 3 56 0 52 1602 6 60 3 43 0 52 1672 22 22 7 65 3 06 0 40 1531 7 38 2 95 0 40 1628 7 20 2 88 0 40 1672 6 90 2 76 0 40 1742 23 18 7 05 4 79 0 68 1408 6 75 4 59 0 68 1478 6 48 4 41 0 68 1549 6 24 4 24 0 68 1619 23 20 7 35 4 12 0 56 1478 7 05 3 95 0 56 1566 6 84 3 83 0 56 1602 6 60 3 70 0 56 1672 23 22 7 65 3 37 0 44 1531 7 38 3 25 0 44 1628 7 20 3 17 0 44 1672 6 90 3 04 0 44 1742 24 18 NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 4 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE60VA MUZ GE60VAD CAPACITY 6 0 kW SHF 0 78 INPUT 1760 W OUTDOOR DB C SHC INPUT a INPUT 21 18 5 88 3 53 0 60 1725 5 40 3 24 0 60 1830 4 98 2 99 0 60 1901 22 18 5 88 3 76 0 64 1725 5 40 3 46 0 64 1830 4 98 3 19 0 64 1901 22 20 6 18 3 21 0 52 1795 5 76 3 00 0 52 1883 5 34 2 78 0 52 1989 22 22 6 54 2 62 0 40 1866 6 12 2 45 0 40 1971 5 70
58. 9 09 JWYN 108NA5 HMVN 108 5 JWYN 108NA5 BUTJIM Plat 104 KjU0 S1012npu0J 184402 851170 DUIJIAJ8S 10 475 JW BUIJIA 21J128 8 1101 y gs NUI e 1 1 8310N 5 1559955 89651 669114661 66608682 14110 119 EHINI PSNI 1 0 08908 7274 17 532 MUZ GE25VAD MUZ GE35VAD HOISINH3Hl 4831 9919 u012V3d 19 4u39NVH29X3 1V3H 8000100 1109 3A1VA NOISNVdX3 A31 0151 1 dW3l 9914 031 031 YOLSIWHSH 4431 7914 310004 d3MOd 26531 MdI 1102 SAWA 9NISHdAdH 7510 WuOISIWH3Hl 398VH2SIQ 2314 331130 d3MOd 20821 79X E9X HOLSIWHSHL 1509530 1914 A0G6 VGT 1 3503 1064 1084 1014 YAWHOISNVYL 1081 011931084 1112419 59214 79214 10980170201 3504 194 YOLSISNVHL H3MOd 9NIHOLIMS 12881 YOLOW 3 N JINGOW 30010 5980 1980 39018 IVNIWY31 481 181 055349 09 OW 80112 4 2 ONTHLOOWS 99299 108NAS 108 5 JWYN 108NA5 BUTJIM Plat 104 31 ALUO 8 10130 02 184402 95172 is 8 133 9 BUT21A18S 104 ea Ne JW UeJ6PIP BUIJIM 91132919 11011 105 0311 is D 100put
59. 98489510 2918 10521421 3514 294 UOISIWHU3HI 1508330 A0S2 1VST 61 35n3 1093 1011331084 11128121 59214 80112 4 2 9NIHLOUNS E 182 108105 10805 13145914 8918 2918 T91U r e 24 21 eH bH 3 W 3i Eep 2 2 ee see 9NL123NNO2 Fol 566699 4861 2591 9 9 9 6 9 LINA 80001 9 YZLN 1 L9ND 20940 9 TL9NO 0 s gt 1 06601 E co 04908 9 d 55 gt gt lt uem 3 rS 2 ge 15 281 E 5 S x N 7 UJ 038 038 TLs NUEL Tal 110812 THOS 1066 N AlddfS 83804 25 532 MUZ GE60VAD MUZ GE71VAD MUZ GE80VAD 32014 1001029 O 9 BJIPUI 509355 1 BUTJIM Plat AP UO SJOJINPUOI 180402 9510 BULITAAS 10 238910 211 28 8 1IUN JOOPUT BY 0 211 28 8 8PIS JOOPUT ay 6310 2018 WNIRH3I 781 TAL NOLI23IONd 1109819 921d 8lnPOM 189 C 621 AOISINHHL dil go jy NOLI23IONd 1109912 79214 slnPOM 3001002891 1102 1083105 JAVA 9NISU3AJU 7510 39 lV3H 8000100 NVJ 8Im
60. Changes for the Better MITSUBISHI MUZ GE25VAD a1 MUZ GES5VAD 41 MUZ GE42VAD A1 MUZ GESOVAD a1 27 1 MUZ GE71VAD a1 SPLIT TYPE AIR CONDITIONERS and MUZ GE80VAD A1 have been added Please void OBH532 REVISED EDITION D OUTDOOR UNIT SERVICE MANUAL No OBH532 REVISED EDITION E utilized R410A Models MUZ GE25VA m MUZ GE50VA m MUZ GE25VA MUZ GE50VA2 MUZ GE25VAD m MUZ GE50VAD m MUZ GE33VA m MUZ GE60VA MUZ GE35VA MUZ GE60VAD MUZ GE35VA2 m MUZ GE71VA m MUZ GE35VA2 MUZ GE71VAD m MUZ GE35VAD m MUZ GES80VA MUZ GE42VA m MUZ GES80VA2 MUZ GE42VAD m MUZ GES80VAD m Indoor unit service manual MSZ GEeVA Series OBH531 1 CONTENTS 1 TECHNICAL CHANGES 3 2 PART NAMES AND FUNCTIONS 4 SPECIFICATION rete cic doce e pras 6 4 NOISE CRITERIA CURVES eene 11 5 OUTLINES AND DIMENSIONS 13 6 WIRING DIAGRAM nenne ranks eran 15 7 REFRIGERANT SYSTEM DIAGRAM 27 8 PERFORMANCE 5 31 9 ACTUATOR CONTROL
61. Cooling 0 35 0 32 Current 1 Heating 0 31 Dimensions WxH xD 800 x 550 x 285 Weight 33 Dehumidification Cooling 0 9 High Cooling Med Low Air flow 21 High Heating Med Low Cooling d Sound level 281 Heating High Cooling Med Special remarks Low Fan speed High Heating Med Low Fan speed regulator Refrigerant filling capacity R410A NOTE Test conditions are based on AS NZS 3823 1 1 Cooling Indoor Dry bulb temperature 27 C Outdoor Dry bulb temperature 35 C Heating Indoor Dry bulb temperature 20 C Outdoor Dry bulb temperature 7 C Refrigerant piping length one way 5 m x1 Measured under rated operating frequency 532 19 C 24 C 15 5 C 6 C Wet bulb temperature Wet bulb temperature Wet bulb temperature Wet bulb temperature Outdoor model MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Power supply Single phase 230 V 50 Hz Capacity Cooling 5 0 1 4 5 4 4 8 1 4 5 4 Rated frequency Min Max Heating 5 8 1 4 7 2 Breaker Capacity 16 Cooling Heating Running current 21 Cooling Power input 1 Total A Total Heating 74 Cooling Heating 96 Starting current 1 Total A 7 4 Coefficient of performance Cooling COP 1 Total Heating 3 52 Model SNB130FGBHT Output Ww 900 Cooling
62. E71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 1 900 Calculation X g 55 g m x Refrigerant piping length m 10 NOTE Refrigerant piping exceeding 7 m MUZ GE25 33 35 42 50 or 10 m MUZ GE60 71 80 requires additional refrigerant charge according to the calculation 532 d 8 PERFORMANCE CURVES MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD MUZ GE25VA MUZ GE42VA MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD The standard specifications apply only to the operation of the air conditioner under normal conditions Since operating condi tions vary according to the areas where these units are installed the following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve 1 GUARANTEED VOLTAGE 198 264 V 50 Hz 2 AIR FLOW Air flow should be set at MAX 3 MAIN READINGS 1 Indoor intake air wet bulb temperature 2 Indoor outlet air wet bulb temperature 3 Outdoor intake air dry bulb temperature 4 Total input 5 Indoor intake air dry bulb temperature 6 Outdoor intake air wet bulb temperature 7 Total input C WB C WB C DB W C DB C WB W Cooling Heating Indoor air wet and dry bulb temperature difference on the left side of the
63. Example When the 7 time flash 2 5 seconds OFF Low discharge tem perature protection Temperature of discharge temperature thermistor has been 50 C or less for 20 minutes Refer to 11 5 Check of LEV Check the refrigerant circuit and the refrigerant amount 8 time flash 2 5 seconds OFF MUZ GE25 33 35 42 50 PAM protection PAM Pulse Amplitude Modu lation The overcurrent flows into IGBT Insulated Gate Bipolar tran sistor TR821 or the bus bar voltage reaches 320 V or more PAM stops and restarts MUZ GE60 71 80 Zero cross detecting circuit Zero cross signal cannot be detected This is not malfunction PAM pro tection will be activated in the fol lowing cases 1 Instantaneous power voltage drop Short time power failure 2 When the power supply voltage is high 9 time flash 2 5 seconds OFF 532 Inverter check mode The connector of compressor is disconnected inverter check mode starts y shows the number of times the LED blinks after every 2 5 second OFF lashing frequency is 2 201 0 5 second ON wa 0 5 second ON 2 5 second OFF 70 Inverter P C board Check if the connector of the com pressor is correctly connected Refer to 11 5 How to check inverter compressor 11 4 TROUBLE CRITERION OF MAIN PARTS MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2
64. F the power supply Remove the short circuit between outdoor terminal block S2 and S3 Y Replace the indoor electronic control P C board equipment turn ON again Switch Turn OFF inverter controlled lighting Turn OFF the power supply and then Press EMERGENCY OPERATION Is serial signal minutes later error indicated 6 Reinstall either the unit or the light away from each other Attach a filter on remote control receiv ing section of the indoor unit 532 ia N Electromagnetic noise enters into TV sets or radios lt Is the unit earthed NE Earth the unit Yes Is the distance between the antennas and the indoor unit within 3 m or is the distance between the antennas and the Yes outdoor unit within 3 m No Extend the distance between the antennas and the indoor unit and or the antennas and the outdoor unit Is the distance between the TV sets or radios and the indoor unit within 1 m or is the distance between the TV sets Yes radios and the outdoor unit within 3 m No Extend the distance between the TV sets and or radios and the indoor unit or the TV sets or radios and the outdoor unit Are the antennas damaged Is the coaxial cable damaged Replace or repair the antenna Is there any poor contact in the anten Replace or repair the coa
65. L MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 9 1 OUTDOOR FAN MOTOR CONTROL The fan motor turns ON OFF interlocking with the compressor ON The fan motor turns ON 5 seconds before the compressor starts up OFF The fan motor turns OFF 15 seconds after the compressor has stopped running 5 seconds 15 seconds ON Compressor OFF ON Outdoor fan motor OFF R V COIL CONTROL Heating er eR A eir a E def ae V ON Cooling sce E t E RU EV de PU OFF Dry s OFF NOTE The 4 way valve reverses for 5 seconds right before start up of the compressor COOL HEAT 5 seconds 5 seconds 2 ON ZEN ompressor OFF ON OFF i H Outdoor fan ON a e F motor OF 9 3 RELATION BETWEEN MAIN SENSOR AND ACTUATOR Actuator Sensor Purpose P Compressor uidoonlan Indoor fan R V coil motor Discharge temperature thermistor Protection O Indoor coil temperature thermistor Heating High pressure protec Cooling Coil frost prevention tion Defrost thermistor Heating Defrosting Fin temperature thermistor Protection Ambient temperature Cooling Low ambient tempera thermistor ture operation Outdoor heat exchanger tem ture operation perature thermis
66. L 1508330 1918 AO0GZ 1V061 3504 184 39018 lVNINU3I 81 181 011331084 1109819 _ 89314 99914 dd8H0S8V 39915 vsQ 80151538 9N1123130 1N3HHf19 6668 BEGY 80104 3 JINGOW 30010 S380 1980 80151538 9 193130 88 2 LEGY 0688 10553840 10113949 9NIHIOONS 9 09 10161638 9 1153130 14388 5 198 1109 JATWA NOISNVdX3 uJAU03SNVHL 1 388009 19 HMV 108 5 10805 10805 BUTIIM P 8TJ 104 55140 810 30 02 184402 85072 54131188 10 5UIJIA 1 1819 1141 00PUI 0 BULJIM 31113818 8 18 J00pur ay jnoqy T 5 10N 1982 15 532 MUZ GE33VA HOLSTWYSHL 4831 1NdIBMV 1102 3ATVA NOISNVdX3 1I09 9NISU3A3H 7510 HU1SIMHHH 4 1 031 AV 134 79X 9 YOLSIWYSH 74831 398 510 0913 310004 3 0 06531 Wd 045 1 1081 HOLSIWHSHL 1508330 1914 121430 ddAOd 20821 YOLSISNVYL H3MOd SNIHOLIMS 16841 NOI19 10Hd 1102812 89314 79214 1 10861441 61 3514 1063 1083 101 39018 lVNINH3L 081 181 YOLOW NV4 052 19061 3503 194 10151 1 431 8813 4055 38440 ON JINGOW 30010 8980 1980 4u39NVH29X3 1V3H 8000100 3019938 191 uo1I9VdV9 ONTHLOOWS 9 492 3NVN 108NA5 3NVN 108NA5 3AVN 108NA5 f 134 BULIIM 203 Amee S10 2npu02 18
67. MUZ GE25VAD CAPACITY 3 2 kW INDOOR DB C INPUT 730 W OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 MUZ GE33VA MUZ GE35VA CAPACITY 4 0 kW INDOOR DB C INPUT 1030 W 642 672 708 694 723 759 OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 MUZ GE35VA2 MUZ GE35VAD CAPACITY 4 0 kW INDOOR DB C INPUT 990 W 906 948 999 979 1020 1071 OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 MUZ GE42VA MUZ GE42VAD 871 911 960 941 980 1030 CAPACITY 5 4 kW INPUT 1460 W OUTDOOR WB C DB CO 15 10 5 0 5 10 15 20 INPUT INPUT INPUT 15 2 70 801 3 40 1001 4 10 1201 481 1355 5 51 1463 6 21 1555 6 86 1602 7 56 1632 21 2 54 847 3 24 1078 3 89 1278 4 59 1417 5 24 1525 5 94 1602 6 59 1648 7 26 1709 26 2 21 924 2 92 1155 3 62 1355 4 27 1494 4 97 1602 5 67 1679 6 32 1725 7 02 1771 MUZ GE50VA CAPACITY 5 8 kW INPUT 1650 W INDOOR DB C OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 MUZ GESOVA2 MUZ GE50VAD CAPACITY 5 8 kW IND
68. OOR DB C INPUT 1650 W 1452 1518 1601 1568 1634 1716 OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 MUZ GE60VA MUZ GE60VAD CAPACITY 6 8 kW INDOOR DB C INPUT 1770 W 1452 1518 1601 1568 1634 1716 OUTDOOR WB C 0 5 INPUT INPUT 15 21 26 NOTE Q Total capacity kW OBH532E INPUT Total power input W 1558 1628 1717 DB Dry bulb temperature WB Wet bulb temperature 61 1682 1752 1841 PERFORMANCE DATA HEAT operation at Rated frequency MUZ GE71VA MUZ GE71VAD CAPACITY 8 1 kW INPUT 2110 W OUTDOOR WB C INDOOR 5 DB C INPUT INPUT 15 1857 2005 21 1941 2089 26 2047 2194 MUZ GE80VA CAPACITY 9 0 kW INPUT 2540 W OUTDOOR WB C INDOOR DB C INPUT INPUT 15 2235 2413 21 2337 2515 26 2464 2642 MUZ GE80VA2 MUZ GE80VAD CAPACITY 9 0 kW INPUT 2550 W OUTDOOR WB C INDOOR 0 DB C INPUT INPUT 15 2244 2423 21 2346 2525 26 2474 2652 NOTE Q Total capacity kW INPUT Total power input W DB Dry bulb temperature WB Wet bulb temperature OBH532E 5 9 ACTUATOR CONTRO
69. PERFORMANCE DATA COOL operation at Rated frequency MUZ GE50VA CAPACITY 5 0 kW SHF 0 76 INPUT 1640 W OUTDOOR DB C NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE50VA2 MUZ GE50VAD CAPACITY 4 8 kW SHF 0 77 INPUT 1480 W OUTDOOR DB C 25 27 SHF INPUT Q SHC INDOOR WB C NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 4 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE50VA2 MUZ GE50VAD CAPACITY 4 8 kW SHF 0 77 INPUT 1480 W 35 40 46 SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE60VA MUZ GE60VAD CAPACITY 6 0 kW SHF 0 78 INPUT 1760 W OUTDOOR DB C suc sur meur she shr neor a snc shr ineur a 21 18 7 05 4 23 0 60 140
70. POM 1891 00121 Avi3u 9X MOISIMMHI 031 IN3IENV 5918 105538403 9M 10841151 81 3504 1063 AV13d 209 NOISIWSJHI dW3I 79 3 1100 JAVA NOISNVaXa A313 10841151 CL 3814 0883 Avi3u T03X MOLSINUSHL 39NVHOSIO 2918 d 31 10861151 EL 3504 1094 1081 UISIMHHHI 1508330 1918 1 10112442 9NIHIOONS 182 AVN 108445 108445 108445 NVN 108445 37 v918 S914 8918 2918 1918 22 p bY b3 28 Wn I ET 4 Hole 9 IE a I 9 an 4 6060060 gt im Y T8 ET C2 WZINI ELINI 21983 TLONO 76 25 5 E EN TO c ES 1081 1063 L 031 ee auvod 2224 e c 111189 5 1 PENEI Tal 11081 1108 1066 N 5 ddMOd 26 532 7 REFRIGERANT SYSTEM DIAGRAM MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA Refrigerant pipe 29 52 with heat insulator E Unit mm 4 way valve Outdoor heat St 7 Op valve temperature with service port thermistor Flared connection Discharge RT68 temperature thermistor Ambient temperature thermistor RT65 sn RT61 E Straine
71. al with this connector has the locking mechanism Slide the sleeve Hold the sleeve and GPull the terminal while pull out the terminal pushing the locking slowly lever Connector 12 1 MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD NOTE Turn OFF power supply before disassembly OPERATING PROCEDURE 1 Removing the cabinet Photo 1 1 Remove the screw fixing the service panel 2 Pull down the service panel and remove it 3 Disconnect the power supply and indoor outdoor con Screws of the top panel Screws of the top panel necting wire DN 4 Remove the screws fixing the top panel 5 Remove the top panel WTA 6 Remove the screws fixing the cabinet 7 Remove the cabinet 8 Remove the screws fixing the back panel 9 Remove the back panel Lf Screws of Service the cabinet panel Photo 2 Screw of the Screws of the cabinet terminal block and the back panel Screw of the service panel Direction to Screws of the cabinet 532 T OPERATING PROCEDURE PHOTOS 2 Removing the inverter assembly inverter P C board 1 Remove the cabinet and panels Refer to 1 2 Disconnect the lead wire to the reactor and the following con nectors Inverter P C board CN721 R V coil CN932 Fan motor CN641 Defrost thermistor and discharge temperature ther mistor CN643 Ambient temperature thermi
72. d 9 Voltage between outdoor terminal block 51 52 Does the compressor run for 10 seconds or Check the refrigerant circuit more after it starts Yes Check the stop valve INe After the compressor is heated with a drier does the compressor start x1 No Replace the compressor Yes x1 Heat the compressor with a drier for about 20 minutes Do not recover refrigerant gas while heating Compressor start failure Activate pre heat control Refer to 10 2 PRE HEAT CONTROL SETTING Heating part 532 6 Check of outdoor thermistors below table and measure the resistance of thermistor Y 5 Replace the thermistor except RT64 2 thermistor normal Ne ct When RT64 is abnormal replace the inverter P C board yes Ce the connector of thermistor in the outdoor P C board oe Reconnect the connector of thermistor Turn ON the power supply and press EMERGENCY OPERATION switch Y Does the unit operate for 10 minutes or more showing thermistor abnormality R Caboard yes OK Cause is poor contact MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Thermistor Connector Pin No Board Defrost Between CN641 pin1 and pin2 Discharge temperature Between CN
73. e IPM Other models 68 A a MUZ GE35 50VA 3 Outdoor unit failure mode table The upper lamp of OPERATION INDICATOR lamp Indoor unit Abnormal point LED indication Failure mode protection Outdoor P C board 1 Intelligent power module IPM MUZ GE25VA IGBT module 1C700 MUZ GE60 71 80VAD Power module IPM Other models Condition Remedy A 5 Indoor outdoor unit failure mode recall function MUZ GE35 50VA Outdoor unit failure mode recall function 8 time flash 2 5 seconds OFF 11 time flash DC voltage DC voltage of inverter cannot be detected normally 2 5 seconds OFF 9 time flash 2 5 seconds OFF Each phase current of compressor Each phase current of compressor cannot be detected normally Refer to 11 5 How to check inverter compressor 10 time flash 2 5 seconds OFF 12 time flash 2 5 seconds OFF Overcurrent Compressor open phase Large current flows into the intelligent power module IPM IGBT module IC700 power module IPM X1 The open phase operation of compressor is detected The interphase short circuit occurs in the output of the intelligent power module IPM IGBT module IC700 power module IPM x1 Reconnect compressor connector Refer to 11 5 How to check inverter compressor 14 time flash 2 5 seconds OFF 14 time flash 2 5 seconds
74. e 7 E Nu Press OPERATE STOP ON OFF button of the remote Ore L lc L controller the set temperature is displayed with the e IE Tuo Wod Thu Fri Sat Sun Won Tue led Thu Fri Sat n remote controller headed towards the indoor unit X1 28 80 13425 08 00 123452 8 00 Expansion valve operates in full opening direction Y Do you hear the expansion valve click Click 2 2 Do you feel the expansion valve vibrate Yes xi SO DER M on touching it the signal is received m Is LEV coil properly fixed to No Properly fix the LEV coil to the expansion valve the expansion valve Yes Measure each voltage between connector pins of CN724 on the inverter P C board 1 Pin Pin Does the resistance of LEV 2 Pin Pin coil have the characteristics 3 Pin Pin Refer to 11 4 4 Pin Pin No Is there about 3 5 VAC between each NOTE Measure the voltage with an analog tester Replace the LEV coil Yes Replace the expansion valve NOTE After check of LEV do the undermentioned operations 1 Turn OFF the power supply and turn it ON again 2 Press RESET button on the remote controller 77 OBH532E D Check of inverter P C board Check the outdoor fan motor Refer to 11 5 0 Y Is the fuse F901
75. e screw of the earth wire and screw of the T B support 7 Remove the screw of the PB fixture 8 Remove the relay panel from the PB support 9 Remove the inverter P C board from the inverter assembly Photo 3 Screws of the relay panel Photo 4 Inverter assembly Inverter P C Screw of the board eat sink T B support Hook of the 3 Removing R V coil 1 Remove the cabinet and panels Refer to 1 2 Disconnect the following connectors Inverter P C board CN721 R V coil 3 Remove the R V coil 532 PB support PB support support the PB support Screw of the earth wire Screw of the PB fixture Relay panel Screw of the R V coil Brazed parts of 4 way valve OPERATING PROCEDURE PHOTOS 4 Removing the discharge temperature thermistor defrost thermistor outdoor heat exchanger tempera ture thermistor and ambient temperature thermistor 1 Remove the cabinet and panels Refer to 1 2 Disconnect the lead wire to the reactor and the following connectors Inverter P C board CN641 Defrost thermistor and discharge temperature ther mistor CN643 Ambient temperature thermistor CN644 Outdoor heat exchanger temperature thermistor 3 Pull out the discharge temperature thermistor from its hold er 4 Pull out the defrost thermistor from its holder 5 Pull out the outdoor heat exchanger temperature thermistor from
76. ect them No Y A Y Turn OFF the power supply Check once more if the indoor outdoor connecting wire is not miswiring Short circuit outdoor terminal block S2 X1 Miswiring may damage indoor electronic control P C board during the operation Be sure to confirm the wiring is correct before the opera tion starts X3 Be sure to check this within 3 minutes after turning ON After 3 minutes LED blinks 6 times Even when the inverter P C board is normal LED blinks 6 times after 3 and S3 1 Y minutes Turn ON the power supply y Is the bus bar voltage of the inverter P C board or th Refer to TEST POINT DIAGRAM AND VOLTAGE of the outdoor unit e outdoor electronic control P C board normal Check of power supply No Refer to 11 5 Yes Does the LED on the inverter P C board repeat 3 6 second OFF and 0 8 sec ond ON quick blinking 3 lt Turn OFF the power supply Remove the short circuit between outdoor terminal block S2 and S3 Turn ON the power supply No Replace the inverter P C board 2 Lighted or not X2 Be careful of the residual voltage of smoothing lighted capacitor Check the wiring If there are any error of the indoor outdoor connecting wire such as the damage of the wire intermediate connection and or poor contact to the terminal block replace the indoor outdoor
77. en compressor and intelligent power Rectify indoor outdoor connecting wire Yes module Turn ON power supply and press EMERGENCY OPERATION switch Does the upper lamp of Is there voltage 230 VAC Replace the indoor OPERATION INDICATOR on the No between the indoor terminal No electronic control P C indoor unit light up block S1 and S2 board res Is there bus bar voltage 325 370 N Does LED on the inverter P C VDC between JP715 and JP30 Replace the inverter on the inverter P C board Yes board light up or flash Refer No P C board Refer to 11 6 1 to 11 6 1 ie Check the electric parts in main circuit If light up OK If flash refer to 11 3 JP30 JP715 MUZ GE60 71 80 325 370 VDC OBH532E d MSZ GE25 33 35 42 50VA MSZ GE60 71 80VA MSZ GE60 71 80VAD Check of LEV Expansion valve MSZ GE35 50VA2 MSZ GE80VA2 MSZ GE25 35 42 50VAD um ON the power supply a lt Preparation of the remote controller gt While pressing both OPERATION SELECT button and TOO COOL button MSZ GE25 33 35 42 50 TEMP button MSZ GE60 71 80VA on the remote controller at the same time press RESET button First release RESET button Hold down the other two buttons for another 3 sec onds Make sure that the indicators on the LCD Screen shown in the right figure are all displayed Then release the buttons 211 m
78. ep is emitted once the signal is received CEIM Mon Tue Wed Thu Fri Sat Sun 12349 0 0840 80 MITSUBISHI ELECTRIC Does the upper lamp of OPERATION INDICATOR lamp on the indoor unit blink at the interval of 0 5 seconds ndoor unit is normal Blinks Either indoor or outdoor unit is abnormal Beep is N But the outdoor unit might be abnormal because there are emitted at the same timing as the blinking of The upper OFF some abnormalities that can not be recalled with this way lamp of OPERATION INDICATOR lamp 2 Confirm if outdoor unit is abnormal according to the de ailed outdoor unit failure mode recall function Yes Refer to 11 2 2 Judgment of indoor outdoor abnormality Blinks Before blinking does the upper lamp of OPERATION INDICA TOR lamp stay ON for 3 seconds Stays ON for 3 seconds without beep Yes The outdoor unit is abnormal V Y The indoor unit is abnormal The outdoor unit is abnormal Check the blinking pattern and identify the abnormal point by referring to the Check the blinking pattern and identify the abnormal point by referring indoor unit failure mode table Refer to indoor unit service manual to the outdoor unit failure mode table Refer to 11 2 3 Make sure to check at least two consecutive blinking cycles 2 Make sure to check at least two consecutive blinking cycles Relea
79. erational frequency The of compressor Hz of compressor Hz of compressor Hz of compressor Hz 532 Capacity correction factors correction factors o Input correction factors o o L Capacity correction factors MUZ GE80VA2 MUZ GE80VAD Correction of Cooling capacity Correction of Cooling input 8 Correction of Heating capacity e o Capacity correction factors Input correction factors 5 Capacity correction factors Capacity dn factors 0 50 100 150 Correction of Heating input 50 100 150 The operational frequency The operational frequency The operational frequency The operational frequency of compressor Hz of compressor Hz of compressor Hz of compressor Hz 8 3 TEST RUN OPERATION How to operate fixed frequency operation Test run operation starts and continues to operate for 30 minutes Indoor fan operates at High speed OORUN remote controller 8 4 OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT Press EMERGENCY OPERATION switch to start COOL or HEAT mode COOL Press once HEAT Press twice Compressor operates at rated frequency in COOL mode or 58 Hz MUZ GE25 33 35 42 50 60 74 Hz MUZ GE71 80 in HEAT mode After 30 minutes test run operation finishes and EMERGENCY OPERATION starts operation frequency of compressor varies To cancel test run operati
80. erature thermistor Thermistor shorts or opens during compressor running Refer to 11 5 Check of outdoor thermistors Defective outdoor thermistors can be identified by checking the blinking pattern of LED 4 time flash 2 5 seconds OFF Overcurrent 11 time flash 2 5 seconds OFF Large current flows into the intelligent power module IPM IGBT module IC700 power module IPM 1 Reconnect compressor connector Refer to 11 5 How to check inverter compressor Check the stop valve Compressor synchronous abnormality Compressor start up failure protection 12 time flash 2 5 seconds OFF Waveform of compressor current is distorted Reconnect compressor connector Refer to 11 5 How to check inverter compressor Discharge temperature Temperature of discharge temperature thermistor exceeds 116 C compressor stops Compressor can restart if discharge temperature thermistor reads 100 C or less 3 minutes later Check the refrigerant circuit and the refrigerant amount Refer to 11 5 Check of LEV 2 5 seconds OFF High pressure Temperature of indoor coil thermistor exceeds 70 C in HEAT mode Temperature of outdoor heat exchanger temperature thermistor exceeds 70 C in COOL mode Check the refrigerant circuit and the refrigerant amount Check the stop valve 7 time flash 2 5 seconds OFF Fin temperature P C board temperature 7 time
81. etween 2 and 5 Between 3 and 5 Y Fixed to either 5 or 0 VDC Does the voltage between each terminal become 5 and 0 No VDC repeatedly yes a No Does the outdoor fan motor rotate smoothly Y Yes Replace the outdoor fan motor Replace the inverter P C board 532 9 Check of power supply MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Disconnect the connector between compressor and intelligent power Rectify indoor outdoor connecting wire Yes module Turn ON power supply and press EMERGENCY OPERATION switch Does the upper lamp of Is there voltage 230 VAC Replace the indoor OPERATION INDICATOR on the between the indoor terminal No electronic control P C indoor unit light up block S1 and S2 board fes Is there bus bar voltage 260 300 Does LED on the inverter P C VDC between DB61 and DB61 Replace the inverter on the inverter P C board Yes eee up or flash Refer No P C board Refer to 11 6 1 E 22 Check the electric parts in main circuit If light up OK If flash refer to 11 3 260 300 VDC OF Inverter P C board Solder side MUZ GE25 33 35 42 50 MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD Disconnect the connector betwe
82. following chart shows the difference between the indoor intake air wet and dry bulb temperature and the indoor outlet air wet and dry bulb temperature for your reference at service How to measure the indoor air wet and dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers to the outdoor air intake Cover the thermometers to prevent direct rays of the sun 3 Check that the air filter is cleaned 4 Open windows and doors of room 5 Press the EMERGENCY OPERATION switch once twice to start the EMERGENCY COOL HEAT MODE 6 When system stabilizes after more than 15 minutes measure temperature and take an average temperature 7 10 minutes later measure temperature again and check that the temperature does not change Wet and dry bulb thermometers FRONT VIEW 8 1 CAPACITY AND INPUT CURVES OUTDOOR UNIT Wet and dry bulb thermometers BACK VIEW Cooling capacity at Rated frequency
83. ible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W WB Wet bulb temperature 532 t PERFORMANCE DATA COOL operation at Rated frequency MUZ GE33VA CAPACITY 3 3 kW SHF 0 88 INPUT 910 W OUTDOOR DB C INDOOR INDOOR 40 46 5 5 sHc INPUT SHC INPUT 21 18 3 23 2 26 0 70 892 2 97 2 08 0 70 946 2 74 1 92 0 70 983 21 20 3 40 1 97 0 58 928 3 17 1 84 0 58 974 2 94 1 70 0 58 1028 22 18 3 23 2 97 2 20 946 2 74 2 03 0 74 983 22 20 3 40 3 17 1 96 974 2 94 1 82 0 62 1028 22 22 3 60 3 37 1 68 1019 3 14 1 57 0 50 1056 892 928 965 23 18 3 23 892 2 97 2 32 2 74 2 14 0 78 983 23 20 3 40 928 3 17 2 09 2 94 1 94 0 66 1028 23 22 3 60 965 3 37 1 82 3 14 1 69 0 54 1056 24 18 892 983 NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W WB Wet bulb temperature 532 PERFORMANCE DATA COOL operation at Rated frequency MUZ GE35VA CAPACITY 3 5 kW SHF 0 85 INPUT 1010 OUTDOOR DB 0 2 0 7 3 0 67 889 3 64 2 44 0 67 9 0 55 919 3 85 2 12 TAE 9 9 1000 9 9 1000 9 960 1000 1050 29 60 29 60 29 60 29 NOTE
84. igerant pipe 198 flared 212 7 OBH532E 5 MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 330 REQUIRED SPACE Drain hole 42 40 2 holes 10X 21 500 mm or more 532 Unit mm 500 mm or more 100 mm or more Service panel Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 MUZ GE60 9 52 MUZ GE71 80 QN o 164 5 99 5 Gas refrigerant pipe joint Refrigerant pipe flared 0 15 88 WIRING DIAGRAM 6 GE35VA MUZ MUZ GE25VA 98119388102 LINN 800081 01 31349 1119812 114415 13804 2405 1060 M MANUS 2311 8 1901 301 10 3 Ai 6918 5915 otf Lot 9 444444 1 001 f 14 12110 1191 5 11063 1 88186681 661 0 191 j d3183ANI 8015 dW3l 1102 282 691 dd9NVH9X 1V3H 8000110 3019938 181 1109 3A IVA 9NISU3A38 7514 dO1SIMHHH Wil IN3IGAV 3110084 83804 11391113131 26621 dl 138 9X uO1STWH3HI 4831 321430 H3MOd 1N39IT131NI 20821 045 1 1081 jHOISINH3Hl dW3l 398 510 10501781781 9513 10631084 7014 uOISTSNvuL H3MOd ONTHOLIMS 1288 u01SIWH3H
85. l condition which has occurred once Even though LED indication listed on the troubleshooting check table 11 3 disappears the memorized failure details can be recalled This mode is very useful when the unit needs to be repaired for the abnormality which does not recur 1 Flow chart of failure mode recall function for the indoor outdoor unit MSZ GE25 33 35 42 50VA MSZ GE60 71 80VA MSZ GE60 71 80VAD MSZ GE35 50VA2 MSZ GE80VA2 MSZ GE25 35 42 50VAD Operational procedure The cause of abnormality cannot be found because the abnormality does not recur Setting up the failure mode recall function Turn ON the power supply Preparation of the remote controller While pressing both OPERATION SELECT button and COOL button MSZ GE25 33 35 42 50 TEMP button MSZ GE60 71 80 on the remote controller at the same time press RESET button First release RESET button Hold down the other two buttons for another 3 seconds Make sure that the indica tors on the LCD screen shown in the right figure are all displayed Then release the buttons Y Press OPERATE STOP ON OFF button of the remote controller the set tempera ture is displayed with the remote controller headed towards the indoor unit 7X1 Geom e LL 1 hf UES Mon Tue Wed Thu Fri Sat Sun SET JcLock on DOF 123489 00 00 DOLI Eni 3X1 Regardless of normal or abnormal condition a short be
86. lt lt lt 22 2222 24 222 22 gt 255 Outdoor intake air Wet bulb temperature C co IO IO 10 99 9990 999 99 QOO NN NNNN NN NNN NN NN NNN 222 22 zzz ss NOTE The above broken lines are for the heating operation without any frost and defrost operation 532 Re 8 2 CAPACITY AND INPUT CORRECTION BY OPERATIONAL FREQUENCY OF COMPRESSOR MUZ GE25VA MUZ GE25VAD Correction of Cooling capacity Correction of Cooling input Correction of Heating capacity 5 5 9 o 8 5 8 510 82 0 51 0 5 205 8 1 0 205 8 5 5 a 0 0 0 0 0 0 0 50 100 0 50 100 0 50 100 The operational frequency of compressor Hz MUZ GE33VA Correction of Cooling capacity The operational frequency of compressor Hz Correction of Cooling input 1 5 1 2 g o 815 510 8 8 1 0 8 510 8 9 8 205 8 205 5 205 8 5 3 a o 0 0 0 0 0 0 0 50 100 50 100 The operational frequency The operational frequency of compressor Hz of compressor Hz MUZ GE35VA Correction of Cooling capacity Correction of Cooling input 1 5 1 9 g o 815 5 5 1 0 5 S 1 0 o 8 10 2 5 205 8 20 5 0 5 S 5 a e G o 0 0 0 0 0 0 0 50 100 0 50 100
87. mer o alls 15 1 T wj o mh Rs ex UU wm 8 20704 Bero m grt BO 2 En Em 08 io 1 coss o 0 0 zs 4249 0 0 ifie HL ok 2 Ike E D Og Wes Fc 1 3 E EE 1 i WA 8 O ejo Ves ello OO D 000 MEE JEUNE am OF 42 e 3e ls 2 E 9 jt 2 wed ls F p o8 mors 33 lt E EE WES 00 11111 EE o gt dp Tm Hou mni oir on MDs 0 b MEE UE MA Me tj d d ENSO Q Oe g 8 E 5 a DO 5 77 a 5 aa 55 So S S 9 st SE oco 5 8 5 ec TL ak 9 c 96 gm 5 8 5 5 5 of 2 9 0 VEL mg 56885 77 5 8 oe SL oF SE of z3 gt 20520 c 952 gt 5 2 5 055 0 8 4 GIS 450 OSE On pws Blup io9czto oot 954096 OCS Sane zic 522 2 5 OOS OO 5 5 605 225050 Outdoor heat exchanger temperature thermistor RT68 Resistance kQ 0 20 10 0 10 532 20 Temperature 30 Discharge temperature thermistor RT62
88. nal frequency of compressor Hz 100 Correction of Heating input a Input correction factors zx o o o o 50 The operational frequency of compressor Hz 100 Correction of Heating input Capacity correction factors o o E 22 o a o a o 50 The operational frequency of compressor Hz 100 Correction of Heating input Capacity correction factors o o o a o 50 The operational frequency of compressor Hz 100 MUZ GE50VA Correction of Cooling capacity Correction of Cooling input Y Correction of Heating capacity xn Correction of Heating input A Capacity correction factors o a o Input correction factors o e a o Capacity correction factors o o a o Capacity correction factors 0 50 100 0 50 100 0 50 100 The operational frequency The operational frequency The operational frequency The operational frequency of compressor Hz of compressor Hz of compressor Hz of compressor Hz MUZ GE50VA2 MUZ GE50VAD 5 Correction of Cooling capacity 2i Correction of Cooling input 5 Correction of Heating capacity 20 Correction of Heating input 2 5 22 Capacity correction factors o Input correction factors 23 a o a Capacity correction factors e Eu o a o S Capacity correction factors 0 50 100 0 50 10 0 50 100 The operational frequency The operational frequency The
89. nt Refer to 11 5 Check of LEV 4 time flash 2 5 seconds OFF Fin temperature P C board tem perature thermistor overheat protection Temperature of fin temperature thermistor on the heat sink exceeds 75 80 C or temperature of P C board temperature thermistor on the inverter P C board exceeds 70 75 C Check around the outdoor unit eCheck the outdoor unit air passage Refer to 11 5 0 Check of outdoor fan motor 5 time flash 2 5 seconds OFF High pressure pro tection Temperature of indoor coil thermistor exceeds 70 C in HEAT mode Temperature of outdoor heat exchanger temperature thermistor exceeds 70 C in COOL mode Check the refrigerant circuit and the refrigerant amount Check the stop valve 8 time flash 2 5 seconds OFF Compressor synchro nous abnormality The waveform of compressor current is distorted Reconnect connector of compressor Refer to 11 5 How to check in verter compressor 10 time flash 2 5 seconds OFF Outdoor fan motor Outdoor fan has stopped 3 times in a row within 30 seconds after outdoor fan start up Refer to 11 5 0 Check of outdoor fan motor Refer to 11 5 Check of inverter P C board 12 time flash 2 5 seconds OFF Each phase current of compressor Each phase current of compressor cannot be detected nor mally Refer to 11 5 How to check in verter compressor 13 time flash DC voltage 2 5
90. o Outdoor current A a o o gt ao a 20 25 30 35 50 60 70 Ambient temperature C Ambient humidity HEAT operation Condition Indoor Outdoor Dry bulb temperature C 20 0 7 15 Wet bulb temperature C 6 12 Operation TEST RUN OPERATION Refer to 8 3 Outdoor unit current MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA 25 MUZ GE35VA2 MUZ GE35VAD N N Outdoor current A N Outdoor current o 0 5 10 15 20 25 510 5 10 15 20 25 0 5 10 15 20 25 Ambient temperature C Ambient temperature C Ambient temperature C MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD 6 0 5 5 5 5 Bes 250 259 5 545 5 4 5 85 0 8 3 5 54 0 5 4 0 845 835 835 o 5 10 15 20 25 5 10 15 20 25 0 5 10 15 20 25 Ambient temperature C Ambient temperature C Ambient temperature C MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA 10 0 12 0 29 2 10 8 xS lt S 8 4 96 3 5 o o 7 6 84 5 5 6 8 7 2 3 6 0 6 0 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 Ambient temperature C Ambient temperature C Ambient temperature C MUZ GE80VA2 MUZ GE80VAD Outdoor current A 0 0 5 10 15 20 25 Ambient temperature C OBH532E i PERFORMANCE DATA COOL operation at Rated frequency MUZ GE25VA MUZ GE25VAD CAPACITY
91. ol turns ON the compressor is energized About 50 W MUZ GE60 71 80 Prolonged low load operation in which the thermostat is OFF for a long time at low outside temperature 0 C or less may cause the following troubles To prevent those troubles activate the pre heat control 1 If moisture gets into the refrigerant cycle and freezes it may interfer the start up of the compressor 2 If liquid refrigerant collects in the compressor a failure in the compressor may occur The pre heat control turns ON when the compressor temperature is 20 C or below When the pre heat control turns ON the compressor is energized About 70 W Pre heat control setting lt JK gt ON To activate the pre heat control cut JK wire of the inverter P C board OFF To deactivate the pre heat control solder JK wire of the inverter P C board Refer to 11 6 1 NOTE When the inverter P C board is replaced check the Jumper wires and cut solder them if necessary OBH532E a 11 TROUBLESHOOTING MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 11 1 1 2 3 CAUTIONS ON TROUBLESHOOTING Before troubleshooting check the following 1 Check the power supply voltage 2 Check the indoor outdoor connecting wire for miswiring Take care of the following during se
92. on EMERGENCY OPERATION press EMERGENCY OPERATION switch or any button on Relative humidity 96 COOL operation Dry bulb temperature C Both indoor and outdoor unit are under the same temperature 20 50 humidity condition 25 60 70 Operation TEST RUN OPERATION Refer to 8 3 30 Outdoor low pressure MUZ GE2SVA MUZ GE25VAD MUZ G E35VA T T 208 8 on 607 a 0 5 0 6 0 5 0 4 15 20 25 30 35 15 20 25 30 35 50 60 70 1 50 60 70 Ambient temperature C Ambient temperature C Ambient temperature C Ambient humidity Ambient humidity Ambient humidity MUZ GE35VA2 MUZ GE35VAD MUZ GESOVA 0 7 906 oO 2 5 8 8 06 05 5 0 5 04 0 4 0 3 Ambient temperature C Ambient temperature C Ambient humidity hc20 Ambient humidity 532 MUZ GE50VA2 MUZ GE50VAD MPa Gauge 715 20 25 30 35 50 60 Ambient temperature C Ambient humidity MUZ GE80VA o o MPa Gauge o 715 20 25 30 35 50 60 70 Ambient temperature C Ambient humidity Outdoor unit current MUZ GE25VA MUZ GE25VAD Outdoor current A Ambient temperature C Ambient humidity MUZ GE35VA2 MUZ GE35VAD Outdoor current A Ambient temperature C Ambient humidity OBH532E MUZ GE60VA MUZ GE60VAD MPa Gauge 15 20 25 30 35 50 60 70 Ambient tempe
93. or unit is abnormal Blinking at 0 5 Blinking at 0 5 2 5 second OFF 3 second ON second interval 2 5 second OFF 3 second ON second interval a rey 9 OFF f i o e gt 7 4 gt lt gt i No beep Beeps Beeps Repeated cycle Repeated cycle Repeated cycle 532 2 Operational procedure The outdoor unit might be abnormal Check if outdoor unit is abnormal according to the following procedures Y Make sure that the remote controller is set to the failure mode recall function With the remote controller headed towards the indoor unit press TOO COOL or TOO WARM button MSZ GE25 33 35 42 50 TEMP or button MSZ GE60 71 80 to adjust the set temperature to 25 C 1 Does the upper lamp of OPERATION INDICATOR lamp on the indoor unit blink at the interval of 0 5 seconds 2 Flow chart of the detailed outdoor unit failure mode recall function x1 Regardless of normal or abnormal condition 2 short beeps are emitted as the signal is received Blinks The outdoor unit is abnormal Beep is emitted No at the same timing as the blinking of the upper OFF lamp of OPERATION INDICATOR lamp 2 Yes ins The outdoor unit is abnormal Check the blinking pattern and identify the abnormal point by referring to the outdoor unit failure mode table 11 2 3 Make sure to check at least two consecutive blinking cycles X2
94. pressor terminals x1 Measurement point gt gt At 3 points BLK WHT BLK RED WHT RED Measure the resistance between the lead wires at 3 points lt lt Judgement gt gt Refer to 11 4 0 Q Abnormal short Infinite Abnormal open NOTE Be sure to zero the ohmmeter before measurement E Check of compressor operation time lt lt Judgement gt gt e Connect the compressor and activate the inverter Then measure 0 second the time until the inverter stops due to over current lt lt Operation method gt gt 1 second Abnormal gt Start heating or cooling operation by pressing EMERGENCY G indi hort OPERATION switch on the indoor unit TEST RUN OPERATION 2 Seconds oT Refer to 8 3 Abnormal lt lt Measurement gt gt Serine date lock out Measure the time from the start of compressor to the stop of Starting defect compressor due to overcurrent Poor contact 10 seconds Outdoor BC board defect Disconnected connector Refrigerant circuit defect Closed valve 10 minutes E Check of compressor start failure eonim that O is normal Electrical circuit check Contact of the compressor connector Output voltage of inverter P C board and balance of them See 11 5 Direct current voltage between DB61 and MUZ GE25 33 35 42 50 JP715 and JP30 MUZ GE60 71 80 on the inverter P C boar
95. r 100 Flared connection Capillary tube x 03 0 02 0 240 mE heating ON cooling OFF valve 1 1 with strainar Refrigerant pipe 26 35 Refrigerant flow in cooling with heat insulator gt Refrigerant flow in heating MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD Refrigerant pipe 99 52 with heat insulator valve 559 Outdoor heat anger perature 7 with service Muffler Outdoor thermistor Flared connection heat RT68 temperature exchanger thermistor RT62 Compressor Ambient temperature thermistor RT65 Defrost thermistor RT61 Capillary tube 3 03 0 01 8 600 2 al Strainer Flared connection 100 Capillary tube LEV iS 23 0 2 0 240 gt lt R V coil P gt lt 000 gt lt cooling OFF Stop valve with strainar Refrigerant pipe 26 35 Refrigerant flow in cooling with heat insulator neg gt Refrigerant flow in heating OBH532E MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD Unit mm Muffler Refrigerant pipe 212 7 with heat insulator 2 Stop valve with service Flared connection Discharge Ambient temperature temperature MK Defrost thermistor ermistor RT65 RT61 Compressor Outdoor heat exchanger temperature thermistor Flared connection LEY Strainer 100
96. rature C Ambient humidity MUZ GE80VA2 MUZ GE80VAD MPa Gauge Ambient temperature C Ambient humidity MUZ G E33VA A T N Outdoor current 2575 20 25 30 35 50 60 70 Ambient temperature Ambient humidity MUZ GE42VA MUZ GE42VAD A 5 0 4 5 Outdoor current 4 0 15 20 25 30 35 50 60 Ambient temperature C Ambient humidity 36 MB GE71VA MUZ GE71VAD MPa Gauge 15 20 25 30 35 50 60 70 Ambient temperature C Ambient humidity MUZ G E35VA A o Outdoor current 3 2 15 20 25 30 35 50 60 70 Ambient temperature C Ambient humidity MUZ GESOVA D o m o Outdoor current A a 4 5 15 20 25 30 35 50 60 70 Ambient temperature C Ambient humidity Outdoor unit current MUZ GESOVA2 MUZ GE50VAD MUZ GEGOVA MUZ GE60VAD Outdoor current A Outdoor current 4 0 40 5 20 25 30 35 95 20 25 30 35 BA E 50 60 70 o Ambient temperature C pele NH C Ambient humidity MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD T 11 0 MES 10 0 lt Outdoor current Outdoor current A 715 20 25 30 35 69 5 20 25 30 35 50 60 70 50 60 70 Ambient temperature C Ambient temperature C Ambient humidity Ambient humidity 96 532 d MUZ GE71 VA MUZ GE71VAD o M
97. rvicing 1 Before servicing the air conditioner be sure to turn OFF the main unit first with the remote controller and after con firming the horizontal vane is closed turn OFF the breaker and or disconnect the power plug 2 Be sure to turn OFF the power supply before removing the front panel the cabinet the top panel and the electronic control P C board 3 When removing the electrical parts be careful of the residual voltage of smoothing capacitor 4 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the components 5 When connecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires Incorrect Correct TRON 9 Lead wiring Housing point Troubleshooting procedure 1 Check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality To make sure check how many times the OPERATION INDICATOR lamp is flashing on and off before starting serv ice work 2 Before servicing check that the connector and terminal are connected properly 3 When the electronic control P C board seems to be defective check the copper foil pattern for disconnection and the components for bursting and discoloration 4 Refer to 11 2 and 11 3 532 11 2 FAILURE MODE RECALL FUNCTION Outline of the function This air conditioner can memorize the abnorma
98. sing the failure mode recall function y Release the failure mode recall function by the following procedures Turn OFF the power supply and turn it ON again Press RESET button of the remote controller y Repair the failure parts Deleting the memorized abnormal condition After repairing the unit recall the failure mode again according to Setting up the failure mode recall function mentioned above Press OPERATE STOP ON OFF button of the remote controller the set temperature is displayed with the remote controller headed towards the indoor unit Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted Release the failure mode recall function according to Releasing the failure mode recall function mentioned above NOTE 1 Make sure to release the failure mode recall function after it is set up otherwise the unit cannot operate properly 2 If the abnormal condition is not deleted from the memory the last abnormal condition is kept memorized X2 Blinking pattern when the indoor unit is abnormal Blinking at 0 5 Blinking at 0 5 2 5 second OFF second interval 2 5 second OFF second interval lt gt lt gt lt gt lt gt OFF lt gt gt gt gt gt gt P i Beeps pid Beeps gt lt Beeps Repeated cycle Repeated cycle Repeated cycle 3 Blinking pattern when the outdo
99. stor CN644 Outdoor heat exchanger temperature thermistor CN724 LEV 3 Remove the compressor connector CN61 4 Remove the screws fixing the heat sink support and the sep arator 5 Remove the fixing screws of the terminal block support and the back panel 6 Remove the inverter assembly 7 Remove the screw of the earth wire and screw of the termi nal block support 8 Remove the heat sink support from the P C board support 9 Remove the screw of the inverter P C board and remove the inverter P C board from the P C board support Removing R V coil 1 Remove the cabinet and panels Refer to 1 2 Disconnect the following connectors Inverter P C board CN721 R V coil 3 Remove the R V Removing the discharge temperature thermistor defrost thermistor outdoor heat exchanger tempera ture thermistor and ambient temperature thermistor 1 Remove the cabinet and panels Refer to 1 2 Disconnect the lead wire to the reactor and the following con nectors Inverter P C board CN641 Defrost thermistor and discharge temperature ther mistor CN643 Ambient temperature thermistor CN644 Outdoor heat exchanger temperature thermistor 3 Pull out the discharge temperature thermistor from its holder 4 Pull out the defrost thermistor from its holder Photo 6 5 Pull out the outdoor heat exchanger temperature thermistor from its holder Photo 6 6 Pull out the ambient temperature
100. suc sur meur SHC INPUT a INPUT a INPUT 21 18 4 94 2 91 0 59 1008 4 73 2 79 0 59 1058 4 54 2 68 0 59 1109 4 37 2 58 0 59 1159 22 18 4 94 3 11 0 63 1008 4 73 2 98 0 63 1058 4 54 2 86 0 63 1109 4 37 2 75 0 63 1159 22 20 5 15 2 62 0 51 1058 4 94 2 52 0 51 1121 4 79 2 44 0 51 1147 4 62 2 36 0 51 1197 22 22 5 36 2 09 0 39 1096 5 17 2 01 0 39 1166 5 04 1 97 0 39 1197 4 83 1 88 0 39 1247 23 18 4 94 3 31 0 67 1008 4 73 3 17 0 67 1058 4 54 3 04 0 67 1109 4 37 2 93 0 67 1159 23 20 5 15 2 83 0 55 1058 4 94 2 71 0 55 1121 4 79 2 63 0 55 1147 4 62 2 54 0 55 1197 23 22 5 36 2 30 0 43 1096 5 17 2 22 0 43 1166 5 04 2 17 0 43 1197 4 83 2 08 0 43 1247 24 18 NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 532 b PERFORMANCE DATA COOL operation at Rated frequency MUZ GE42VA MUZ GE42VAD CAPACITY 4 2 kW SHF 0 77 INPUT 1260 W OUTDOOR DB C SRG SHF WPUT G SAG SHF WPUT a 18 4 12 2 43 0 59 1235 3 78 2 23 0 59 1310 3 49 2 06 0 59 1361 18 4 12 2 59 1235 3 78 2 38 0 63 4 33 2 21 1285 4 03 2 06 0 51 4 58 1336 4 28 1 67 0 39 18 4 12
101. tor Cooling High pressure protec Cooling Low ambient tempera tion 532 7 10 SERVICE FUNCTIONS MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD MUZ GE50VA MUZ GE50VA2 MUZ GE50VAD MUZ GE60VA MUZ GE60VAD MUZ GE71VA MUZ GE71VAD MUZ GE80VA MUZ GE80VA2 MUZ GE80VAD 10 1 10 2 CHANGE IN DEFROST SETTING Changing defrost finish temperature JS To change the defrost finish temperature cut solder the JS wire of the outdoor inverter P C board Refer to 11 6 1 Defrost finish temperature C MUZ GE Jumper wire 35VA 50VA 60VA 35VA2 42 50 2 60VAD Soldered Initial setting 10 9 10 None Cut 13 18 18 MUZ GE25 35 42 50VAD do not have this changing function The defrost finish temperature is fixed to the temperatures shown in the table below The JS wire for these models is used for changing the demand response capability Defrost finish temperature C MUZ GE 25VAD 35VAD 42VAD 50VAD 5 10 5 9 PRE HEAT CONTROL SETTING PRE HEAT CONTROL MUZ GE25 33 35 42 50 When moisture gets into the refrigerant cycle it may interfere the start up of the compressor at low outside temperature The pre heat control prevents this interference The pre heat control turns ON when the discharge temperature thermis tor is 20 C or below When the pre heat contr
102. utes later after turning ON the outdoor unit starts running During operation check for the electromagnetic noise 4 Press OPERATE STOP ON OFF button on the remote controller for power OFF when the outdoor unit stops but the indoor outdoor communication still runs on In this situation check for the electromagnetic noise 532 i 11 6 TEST POINT DIAGRAM AND VOLTAGE 1 Inverter P C board MUZ GE25VA MUZ GE25VAD MUZ GE33VA MUZ GE35VA MUZ GE35VA2 MUZ GE35VAD MUZ GE42VA MUZ GE42VAD Back side of unit DB61 C63 C62 C61 F701 Bus bar voltage Smoothing Smoothing Smoothing Fuse 260 300 VDC capacitor capacitor capacitor T3 15AL250V F801 230 VAC Fuse T3 15AL250V CN721 R V coil EE GUCKEN S UU Be 230 VAC NE 7 d Bn 0 NOE eH 2 J p E F bes it 2 2 2 F901 oe Les de 0002 ws Fuse ER J he 2753 o li T3 15AL250V EET 0 m gp 10
103. ve the top panel cabinet and service panel Refer to 1 2 Remove the back panel Refer to 1 3 Remove the inverter assembly Refer to 2 4 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 MPa 5 Detach the brazed part of the suction and the discharge pipe connected with compressor 6 Remove the compressor nuts 7 Remove the compressor 8 Detach the brazed parts of 4 way valve and pipe Photo 4 532 2 Photo 5 Outdoor heat Ambient tem exchanger tempera perature ture thermistor thermistor Photo 6 Screws of the outdoor fan motor Photo 7 Discharge temperature Brazed part of the fenis 4 discharge pipe Brazed part of the suction pipe 532 95 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2009 MITSUBISHI ELECTRIC CORPORATION Distributed in Sep 2013 No OBH532 REVISED EDITION E Distributed in Apr 2012 No OBH532 REVISED EDITION D Distributed in Jul 2011 No OBH532 REVISED EDITION C Distributed in Jul 2010 No OBH532 REVISED EDITION B 5 Distributed in Oct 2009 No OBH532 REVISED EDITION A 5 Distributed in Feb 2009 No OBH532 5 Made in Japan New publication effective Sep 2013 Specifications are subject to change without notice
104. ws of the top panel TS e p pang 3 Remove the screw of the valve cover 4 Remove the service panel 5 Remove the top panel 6 Remove the valve cover 7 Disconnect the power supply and indoor outdoor connect ing wire 8 Remove the screws of the cabinet 9 Remove the cabinet 10 Remove the screws of the back panel 11 Remove the back panel Scr ws of the Screws of the cabinet cabinet Photo 2 Screw of the back panel Screws of the Screws of the top panel cabinet 4 D D 0 Screws of the cabinet Screws of the Screws of the service panel back panel Screw of the valve cover 92 532 OPERATING PROCEDURE PHOTOS 2 Removing the inverter assembly inverter P C board Photo 3 1 Remove the cabinet and panels Refer to 1 Screw of the 2 Disconnect the lead wire to the reactor and the following con relay panel Screws of the nectors PB support Inverter P C board Inverter P C Earth wires CN602 R V coil board CN931 CN932 Fan motor CN671 Defrost thermistor discharge temperature thermistor and outdoor heat exchanger temperature thermistor CN672 Ambient temperature thermistor CN724 LEV 3 Remove the compressor connector 4 Remove the screws fixing the relay panel 5 Remove the relay panel 6 Remove the earth wires and the lead wires of the inverter P C board 7 Remove the screw of the PB support 8 Remove the inverter P C
105. xial cable na wiring Is the indoor outdoor connecting wire Extend the distance between the indoor outdoor of the air conditioner and the wiring of connecting wire of the air conditioner and the wir the antennas close Yes ing of the antennas Even if all of the above conditions are fulfilled the electromagnetic noise may enter depending on the electric field strength or the installation condition combination of specific conditions such as antennas or wiring Check the following before asking for service 1 Devices affected by the electromagnetic noise TV sets radios FM AM broadcast shortwave 2 Channel frequency broadcast station affected by the electromagnetic noise 3 Channel frequency broadcast station unaffected by the electromagnetic noise 4 Layout of indoor outdoor unit of the air conditioner indoor outdoor wiring earth wire antennas wiring from antennas receiver Electric field intensity of the broadcast station affected by the electromagnetic noise Presence or absence of amplifier such as booster Operation condition of air conditioner when the electromagnetic noise enters in 1 Turn OFF the power supply once and then turn ON the power supply In this situation check for the electromagnetic noise 2 Within 3 minutes after turning ON the power supply press OPERATE STOP ON OFF button on the remote controller for power ON and check for the electromagnetic noise 3 After a short time 3 min
106. z MUZ GE71VA MUZ GE71VAD FUNCTION SPL dB A LINE COOLING 55 HEATING 55 90 80 20uPa NS 70 F NC 70 F 60 50 F MS 40 5 4 30 20 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB P i oe gt 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz OBH532E MUZ GE60VA MUZ GE60VAD FUNCTION SPL dB A LINE COOLING 55 HEATING 55 90 80 20uPa 70 60 50 40 30 4 30 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB go NC 10 F NC 20 T i T 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz MUZ GE80VA MUZ GE80VA2 FUNCTION SPL dB A LINE MUZ GE80VAD COOLING 55 HEATING 55 90 80 20uPa 70 AOS E F i F 60 50 i 40 30 NC 30 OCTAVE BAND SOUND PRESSURE LEVEL 0 dB 1 i i i toi X d ME 2 20 01 N 10 3 d Nc 20

A1 , MUZ-GE35VAD-A1 , MUZ-GE42VAD-A1 , MUZ-GE60VAD-A1

Contents

Download Pdf Manuals

Related Search

Related Contents