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1. FAN CAPACITO UIDOOR UNIT XTS 16 TO INDOOR UNIT MSG 36CR Service manual UNITI ERR Gm _1 20025 xn TO OUTDOOR TO INDOOR UNIT POWER SUPPLY x Fi CAP 7 2 2 Heating mode MSG 24HR MSG 30HR 18 TRANSFORMER Service manual CNS DISPLAY BOARD 8 B PIPE TEMPERATURE SENSOR WIRING DIAGRAM INDOOR UNIT ROOM TEMPERATURE SENSOR MAIN BOARD 10 SWIN MOTO FUSE 3 15A 250V 5 CURRENT INDUCTOR FAN P4 4 WAY P5 RED BLUE L TO OUTDOOR m WHITE 5 p TO OUTDOOR YELLOW CABS
2. INDOOR UNIT COMP Pay FAN CAPACITOR WIRING DIAGRAM OUTDOOR UNIT PART NAME COMPRESSOR COMPRESSOR CAPACTTOR OCTDOOR FAN FAN CAPACITOR BAY TERMINAL MIDDLE TERMINAL VALVE REVERSING VALVE XSI CONNECTOR RT3 PPE TEVPERATIR SENSOR KMI AC CONTACTOR Service manual MSG 36HR WIRING DIAGRAM gt INDOOR UNIT ml CNS FUSE 3 LbA 2a0V CODE PART NAME UNITI MAIN CONTROL UNITZ DISPLAY PCD EN INDOOR SWING SWING MOTOR TRANS TRANSFORVER ROOM TEMPERATLRE SENSOR PIPE TEMPERATURE SENSOR XTL 4 WAY TERMINAL CNL OU P C BOARD SOCKETS WIRING DIAGRAM OUTDOOR UNIT VALVE CAP3
3. XT1 5 TERMINAL XT3 MIDDLE TERMINA VALVE REVERSING VALV2 XP1 XS1 CONNECTOR PIPE TEMPERATURE SENSOR AC CONTACTOR CURRENT INDUCTOR TRANS TRANSFORMER e TO INDOOR UNIT POWER SUPPLY Service manual 8 Installation details 8 1 Wrench torque sheet for installation 1 8 4 2 5 5 8 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Grade 2 8 3 Pipe length and the elevation 7k 19K TE ITN 1 4 06 35 1 2 912 7 1 4 96 35 1 2 012 7 1 4 6 35 16K 28K 5 8 15 88 1 4 6 35 5 8 15 88 3 8 09 52 5 8 915 88 3 8 9 52 65 K 36K F S SUV SO 13 4 919 05 3 8 99 52 5 15 so 6 _ Indoor unit In case that Indoor unit more than A Caution Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be install per 5 7 meters 24 Service manual 8 4 Air purging of the piping and indoor unit Required tools Hexagonal
4. PART NAME ITDOOR CONTROL PCB CTDOOR FAN AMPRESSOR COMPRESSOR RUN CAPAC TOR QVPRESSOR START CAPACITOR OUTDOOR FAN CAPACITOR UNITI SWAY LITTLE TERMINAL m XT2 M DDLE TERMINAL tem VALVE REVERSING VALVE X81 CONECTOR KM1 AC CONTACTOR KM2 STAR RELAY G xb T CURRENT INDUCTOR TO INDOOR UNIT POWER SUPPLY TRANSI TRANSFORVER amp L RT3 PIP3 TEVPERATCRE SENSOR 19 Service manual 7 2 3 Cooling mode Ph MSG 30CR 3ph PIPE TEMPERATURE SENSOR WIRING DIAGRAM INDOOR UNIT DISPLAY BOARD ROOM TEMPERATLRE SENSOR TRANSFORMER 10 5 m SWING as MAIN BOARD E e OLT PRO Mey COMP P3
5. ANI DOOR FAN SWING SWING MOTOR TRANSI RANSFORVER OOM TEMPERATURE SENSOR RI2 PIPE TEMPSRATLRE SENSOR XT AWAY TERMINAL CNL CN11 BOARD SOCKETS WIRING DIAGRAM OUTDOOR UNIT PART NAME OUTDOOR CONTROL PCB OUTDOOR FAN COMPRESSOR OUTDOOR FAN CAPACITOR 1 WAY TERMINAL XT2 XT3 MIDDLE TER KMI AC CONTACTOR CT CURRENT INDUCTOR TRANSI TRANSFORMER 0 2 N S SON NBN 27 a INDOOR UNIT POWER SUPPLY 94 2 Service manual 7 2 4 Heating mode 3 Ph MSG 30HR 3ph RA
6. mw TO OUTDOOR UNIT TO OUTDOOR UNIT WIRING DIAGRAM QUTDOOR UNIT Om CNSOL PIN O PLACK E a 8 A ES woe WIE e B CODE PART UE BLACK UNITS OUTDOOR DETECTOR BOARD Sl rv OUTDOOR EN CAP OUTDOOR FAN CAPICITOR KT AC CONTACTOR T COMP COMPRESSOR 113 BTT TERMINAL 22 MIDDLE l ee e e S CTI CURRENT INDUCTOR 7 801 0305 P C BOARD SOCKET POWER SUPPLY BE TO INDOOR UMIT 20 Service manual MSG 36CR 3ph WIRING DIAGRAM pm INDOOR UNIT P CNS FUSE 3 154 250V CODE NITI AIN CONTROL NIT2 JISPLAY PCB
7. AME gt peed hi mi lo r min Indoor air flow Hi Mi Lo m3 h ndoor noise level Hi Mi Lo dB A Model Brand nput Outdoor fan motor D o r min m h dB A peed Outdoor air flow Outdoor noise level 02 C1 10 Service manual MSG3CR MSG3HR Powersupply Ph V Hz 3 380 420V 50Hz 3 380 420V 50Hz Capacity 3500 5500 ATL Sangen A Model eer ZR34KH TED322 ee Brand Copeland Copeland Capacity Buh 39000 w Rated curona A 6 L 6 _ Locked rotor RA A Bu me Thermal protector HM Capacitor w Refigerantol mi SONTEX200LTI242 SONTEX 200LT 1242 Mode Bend WK iut W capactor eet Speed himil 12604150590 12601150590 Indoor air fow HiMiLo mam 13012001050 195072001050 Indoor noise level HiMiLo dB A 4946422 494942 Moi ie vam Brand ET Capactor L 5 5 Speed 0 5 LL 8 Refrigerant type RATA o o 9 Design pressure 28 28
8. 650 650 Model _ YDK364G YDK364G Brand Wen Weling _ Input 65 6360 65 6360 Capacitor uF 2y F 450V Speed hi mi lo r min 1050 950 850 1050 950 850 Indoor air flow m3 1050950850 1050 950 850 _ Indoor noise level dB A 434037 43 40 37 Modell 1 YDK536K YDK53K Brand Welling _ impute a 10 Capacitor UF 35 _ 9 Speed min sooo 800 Outdoor noise level dB A 56 56 Refrigerant type R410A g 822859 R22 1900 Designpresue MPa 26 26 TT Liquid side Gas side 9953 9160 953 0160 efrigerant Max differenceinlevl 10 10 Operaiontemp J e 1730 1730 Ambienttemp c 1845 7 45 Note The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement Service manual MSG 30CR MSG30HR 1 220 240V 50HZz 1 220 240V 50Hz 28000 3200 y h V Hz B Power supply 5 5 Heating o 2153410 2153540 D m jV c 5 5 e e COP Max current tarting
9. Ligudsde Gas side mm 99506 995206 u TN BEC DM RN OMNEM deenen f 1 3 60 78 60 78 Note The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement E E ES Service manual 5 Refrigerant cycle diagram y Cooling only LIQUID SIDE m gt CAPILLARY EVAPORATOR CONDENSER gt GAS SIDE COMPRESSOR Heat pump mode INDOOR UNIT OUTDOOR UNIT il CHECK VALVE LIQUID SIDE Heating Model only pa CAPILLARY TUBE EVAPORATOR CONDENSER GASSDE s 7 7 F VALVE lt REVERSING ACCUMU VALVE LATOR qs Heating Model Only COMPRESSOR COOLING HEATING 12 Service manual 6 Operation limits 6 1 Cooling operation Outdoor unit air temp C DB 45 Cooling Indoor air temp DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 6 2 Heating operation Indoor air temp C DB Outdoor
10. The voltage of power supply is too low less than 187V No Outdoor unit fault such as the compressor Power supply fault 12 8 Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 12 9 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal When such failure occurs the main control board must have fault 47 Service manual 13 Characteristic of temperature sensor Temp Resistance Resistance Resistance KO 10 622756 17 146181 44 43874 9 587079 18 13918 45 42120 8 56364 19 132631 46 40459 _ 7 522438 20 126431 47 38867 __6_ 493161 2 120561 48 37348 5 46575 2 15 4 3586 4 2 109731 5 341 _ 3 41 5878 24 10476 51 338 __2_ 398239 2 10 5 3198 1 37 1988 6 9557 53 30707 0 35204 27 9145 54 299 1 333269 28 878 55 284 _2 31 5635 29 83357 56 27382 3 299058 30 79708 5 2638 4 28349 31 7621 58 25397 _ 5 268778 32 796 59 2 4468 6 2494 33 69814 60 2357 _ 7 241932 34 66835 6 222 15 161156 42 47625 69 1705 48
11. 27 Service manual 8 Balance refrigerant of the 2 way 3 way valves 4 indoor unit Yn Liquid side Gas side CLOSE Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position 2 Connect the charge set to the 3 way valve s service port 5 Leave the valve on the charge set closed 6 Connect the charge hose with the push pin to the service port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1 discharge the refrigerant until the gauge indicates 0 05 to 0 1 If this is the case it will not be necessary to apply a evacuation 6 Discharge the refrigeration gradually if it is discharged too suddenly the refrigeration oil sill be discharged 28 Service manual 8 8 Evacuation f an Outdoor unit y 2 Vacuum pump Procedure 1 Connect the vacuum pump to the charge set s centre hose 2 Evacuation for approximately one hour 6 Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning
12. SUMMER Cooling mode OUTDOOR TEMPERATURE DRY dade 46 sro 21 CD Total capacity KW rao eee 59 sar 15 W 24 D 17 W 27 C D 19 W 32 D 23 W WINTER OUTDOOR CONDITIONS Indoor 12 CD 79CD 4 D 09C D 49C D_ 7 C D Conditions 11 C W 6 W 3 C W 1 W 6 W 8 W Capacity kW 10 37 210 833 31 630 353 18 20 30 Service manual 95 MSG 36CR SUMMER OUTDOOR TEMPERATURE DRY r sas sr Conditions 21 CD TotalcapactykW 987 9 27 859 790 738 685 15 W Sensitive capacity kW 7 21 6 92 648 6 00 564 528 3 52 3 2 387 418 465 480 24 CD TotalcapactykW 1069 10 21 9 54 902 841 775 17 C W Sensitive capacity 785 761 7 25 690 647 x InputkW 364 384 400 432 480 4 96 27 CD TotalcapaciykW 1138 1088 10 27 971 905 834 19 W Sensitive capacitykw 865 837 801 762 713 659 375 396 412 445 494 511 32 CD TotalcapactykW 1268 12 16 11 76 10 94 10 00 94 23 W Sensitive capacitykW_ 9 76 948 923 864 800 763 390 411 428 463 514 531 96 MSG 36HR SUMMER OUTDOOR TEMPERATURE DRY C es Conditions 2900 TotalcapactykW 987 9 27 859 790 738 685 15 W Sensitive
13. JIS C 5 IO 3I D D en D 2 e Max current tarting current 150 ZRA7K3 PFJ 522 SCROLL COPELAND 39000 3510 19 3 114 15HM1637 60uF gt 400VAC 1240 YDK50 4E Welling 85 80 77 150 ZRA7K3 PFJ 522 SCROLL COPELAND 39000 3510 19 3 114 15HM1637 60uF gt 400VAC 1240 YDK50 4E Welling 85 80 77 O D S Io Fo 9 lal o UJ nput Rated current RLA ocked rotor Amp LRA Thermal protector Compressor 7 Refrigerant oil Indoor fan motor 1260 1150 990 1350 1200 1050 49 46 42 YDK100 6 Welling 169 1260 1150 990 1350 1200 1050 49 46 42 YDK100 6 Welling 169 r min m3 h dB A oeed hi mi lo Indoor air flow Hi Mi Lo ndoor noise level Hi Mi Lo Model Outdoor fan motor nput r min m h dB A peed Outdoor air flow Outdoor noise level Refrigerant R410A 2400 2450 Liquid side Gas side 9 52 16 9 52 16 Refrigerant Max refrigerant pipe length Max difference in level Operation temp oc 4780 1 0 2 Ambient temp o 184 7 45 O Note The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement C 5 en e 3000 3000 C1 cO C1 cO Co co Co
14. Service manual MSG 30HR_ 3Ph 380 420V 50Hz 28000 3000 58 o 3000 5 9 5 7 4 4 4 Ph V Hz Btu h D 5 02 BA lt C1 N Power supply apacit nput Rated current EER C1 C2 UJ Heating nput JIS IO O amp c ws 5 e JE gt gt gt gt P SIE 2 COP Max current tarting current ZR34KH TFD 522 ZR34KH TFD 522 Scroll Scroll Copeland Copeland ep ola l Is S 2 o 3 3 3 0 28000 28000 2480 2480 0 6 Compressor O gt 7 40 ocked rotor Amp LRA 40 Internal Internal 1242 1242 YDK36 4G Welling 72 67 63 F 450V 1150 1060 960 1150 1050 950 47 44 41 YDK53 6K Welling 140 800 2500 lt 58 Refrigerant type R410A R22 2250 Design pressure MPa Refrigerant ind Operaiontemp 1 mao 1780 Ambienttemp 1845 7 45 Note The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement Hefrigerant oil Brand Indoor nput fan motor 0210215 Z 1 1215 Q 0 Q Cc 5 3 00 Q c
15. current 20 76 ZR34KH PFJ 522 Scroll Copeland 28800 2520 12 1 76 Internal 50 1242 YDK36 4G Welling 68 65 62 450 1150 1050 950 1150 1050 950 47 44 41 YDK53 6K Welling 140 800 2500 Outdoor noise level dB A lt 58 Refrigerant type R410A R22 2250 Refrigerant and Operation temp 1730 1730 _ Ambienttemnp 1845 7 45 Note The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement 2 T O D S Io Fo 9 lal o nput Rated current RLA Locked rotor Amp LRA Thermal protector Compressor Hefrigerant oil Indoor fan motor nput oeed hi mi lo r min Indoor air flow Hi Mi Lo m3 h Indoor noise level Hi Mi Lo dB A Model _Ph V Hz_ w Thermal protector J Refrigerant oil J m Mode Brand Speed hi mi lo r min _ _ dB A r min _ dB A ME E Outdoor fan motor nput apacitor peed Outdoor air flow C2 C1 5 r min m h Service manual MSG 36CR_ MSG36HR Ph V Hz 1 220 240 50Hz 1 220 240V 50Hz Btu h 35000 35000 4120 4120 18 6 18 6 Power supply apacit nput Rated current EER 5 38000 4100 18 5 Heating o
16. from the service port Caution If gas leakage is discovered in step 3 above take the following measures If the leaks stop when the piping connections are tightened further continue working from step 4 If the gas leaks do not stop when the connections are retightened repair the location of the leak discharge all of the gas through the service port and then recharge with the specified amount of gas from a gas cylinder Service manual 8 5 Pumping down Re installation Outdoor unit y 2 way valve n N Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 5 Remove the valve stem caps and confirm that the valve stems in the opened position amp Be sure to use a hexagonal wrench to operate the valve stems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve 6 Connect the charge hose with the push pin to the gas service port 4 Air purging of the charge hose 6 Open the low pressure valve on the charge set slightly to purge air from the charge hose 5 Set the 2 way valve to the close position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 7 Immediately set the 3 way valve to the closed position 5 Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa 8 Disconnect the charge set and am
17. not install the product on a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or 5 5 5 n windows is left open Moisture may condense and wet or damage furniture Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place anything on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands There is risk of fire or electric shock Do not place a heater or other appliance near the power cable There is risk of fire and electric shock Do not allow water to run into electric parts may cause fire failure of the product or electric shock Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not
18. running Add up to 90 minutes 10 9 2 Conditions of defrost ending Defrosting ends when either of the following The time gets to 10 minutes T3 gt 20 C The circulation is as following 10 9 3 Defrosting Actions 4 Defrost 10 or 6 minutes Tp Compressor i 255 q 55 I i 4 way valve j OU 5 P lt 25 Outdoor fan Indoor fan 10s Remark when the evaporator pipe temperature sensor more than TE16 the indoor fan start to run 10 10 Auto mode 10 10 1 The air conditioner automatically selects one of the following operation modes cooling heating or fan only according to the temperature difference between room temperature TA and set temperature TS Heating fan only at cooling Fan only Cooling 1 2 5 10 10 2 The indoor fan blows automatically in corresponding selected mode 10 10 3 motion of indoor s blade should accord with the selected operation mode 10 10 4 One mode should be carried out for at least 15 minutes once selected If the compressor cannot start for 15 minutes reselect the operation mode according to the room temp and set temp or reselect when the set temp varies 10 11 Force cooling function 10 11 1 Select forced cooling function with the forced cooling button or the switch 10 11 2 compressor is unconditionally turned on after 30 minutes cooling operation whose fan mode is set as low the A C operates at the DRY mod
19. Http www mideaaircon com Service manual Room airconditioner Split Wall Mounted Type Applied to MSG 24CR MSG 24HR MSG 30CR MSG 30HR MSG 36CR MSG 36HR NOTE Before servicing the please read this at first Always contact with your service center if meet 1 1 1 2 2 3 1 3 2 4 5 6 6 1 6 2 f 7 1 7 2 8 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 9 1 9 2 9 3 9 4 9 5 9 6 10 10 1 10 2 10 3 10 4 10 5 10 6 10 7 Content Content PSC Ode gE 1 Sch ag kee Si 1 VMRG voted en 1 FURGHON med 3 DIMENSION u u as 5 UO aed ieee dint 5 efe AUT 6 2 uu S 7 H lrigerant cycle GIAGrAM 2 0 12 Operation 13 Gere lave OPE 1 13 emm 13 Schematic diagram and Wiring diagranm 15 dagran 15 VM MAGIC S 16 Installation detalls asss 24 Wrench torque sheet for installation 24 Conne
20. NSFO E 3 15 250 ITE ITE W INDOORA OP 0 NIN W gt pL YE DW TY UI 2 R UNIT TO OU FAN CAPACITO a UNITS e TRS a K WIRING DIAGRAM OUTDOOR UNIT 33 a AM BLACK ers E m Eo d wei S gt CODE PART NAME Saa UNIT3 OUTDOOR DETECTOR BOARD sl FAV OLTDOUR FAN CAP OCTDOOR FAN CAPACITOR s TA Kil TC CONTICTIR ees BLACK k C
21. OMP COMPRESSOR ae Yn TT 15 SHAY TERMINAL ib OBB 1 c Y WIDDLE TERVINAL L2 3 Ab 7 K B C NE PIPE TEMPERATURE 530 2 eek S ONE VALVE REVERSING VALVE CURRENT INDUCTOR 1901 0305 BOARD SOCKET TO INDOOR UNIT POWER SUPPLY 29 Service manual MSG 36HR 3ph WIRING DIAGRAM INDOOR UNIT FUSE 3 1bA 2a0V CODE PART NAME UNITI MAIN CONTROL UNITZ DISPLAY PCD EN INDOOR SWING SWING MOTOR TRANS TRANSFORVER RTL ROOM TEMPERATURE SENSOR PIPE TEMPERATURE SENSOR XTL 4 WAY TERMINAL CNL OUT P C BOARD SOCKETS WITTE WIRING DIAGRAM OLTDOOR UNIT VALVE BLUE CAP3 Xj H TRANSL CODE PART NAME UNITI QUTDOOR CONTROL PCB FAN 007900 TAN COMP COMPRESSOR CAP3 OUTDOOR FAN CAPACITOR
22. ating mode 38 39 TORT 39 Sleep MOB 40 10 13 Auto restar 41 11 Modeland Paramelers u aeo Hao u k u SS aS aus sasi ashka 42 12 EROUDICSIOO UII u uu nunus nu 43 12 1 IIS DO uuu 43 12 2 OO CNC eere m 44 12 3 Diagnostic cnar OLET 45 12 4 Resetting phenomenon often occurs during operation 46 12 5 Operation lamp flashes and Timer lamp 46 12 6 Operation lamp Timer lamp Ons etu etel udo epi ae 46 12 7 Operation lamp off and Timer lamp 47 12 8 Operation lamp on and Timer lamp 47 12 9 Operation lamp flashes Timer lamp 8 47 13 Characteristic of temperature sensor 48 Service manual 1 Precaution 1 1 Safety Precaution n To prevent injury to the user or other people and property damage the following instructions must be follo
23. c Tno ne u nz aasan 24 PIPE leligilyandiheoieydlioiu 24 The DIDING and INGQGOF UNI u u u u uu 25 Pumping down 26 eaf OUNGING uuu tau an RR 27 Balance refrigerant of the 2 way 3 way valves 28 es 29 GS CHANGE EAEE EEE 30 Capacily 31 31 31 32 MOG SORR nen ne nen ie 32 MSG GOR ee ee ME 33 33 0 lu u M 34 Electronic control working 34 Proper svmbols and their uu eee 34 34 Ms DIT 36 36 COORG MOOG NE RN dln 36 BIN 37 Content 10 8 2 E 37 10 9 Defrosting mode available for he
24. capacity kW 7 21 6 92 648 6 00 564 528 352 372 387 418 465 480 24 CD TotalcapactykW 1069 10 21 9 54 902 841 775 17 C W Sensitive capacity kW 785 761 725 6 90 647 x InputkW 364 384 400 432 480 4 96 27 CD TotalcapactykW 1138 10 88 10 27 971 9 05 834 19 W Sensitive capacity 865 837 801 762 713 659 InputkW 375 396 412 445 494 511 32 C D TotalcapactykW 1268 12 16 11 76 10 94 10 00 942 23 W SensitivecapacitykW 9 76 948 923 864 800 763 InputkW 390 411 428 463 514 531 WINTER OUTDOOR CONDITIONS x Conditions 11 C W 6 C W 3 C W 1 C W 6 W 8 C W 442 402 374 3 46 302 273 1290 1132 10 30 894 758 6 56 InputkW 453 408 380 355 310 278 2 x IpukW 466 412 391 363 320 293 1267 1102 10 03 859 7 05 584 483 416 3 97 377 340 3 04 33 Service manual 10 Electronic function 10 1 Electronic control working environment Input voltage 175 253V Input power frequency 50HZ Ambient temperature 7 C 43 C Indoor fan normal working amp is less than 1A Outdoor fan normal working amp is less than 1 5A Four way valv
25. conditioner before disconnecting the hose 5 Mounted the valve stem caps and the service port 6 Use torque wrench to tighten the service port cap to a torque of 18N m 5 Be sure to check for gas leakage 30 Service manual 9 Capacity table 91 MSG 24CR SUMMER Cooling mode OUTDOOR TEMPERATURE DRY we we we e Conditions 21 CD _ Total capacity KW pss a 15 W 24 D 17 W 27 D 19 W 32 D 23 W SUMMER Cooling mode OUTDOOR TEMPERATURE DRY Gods se c o 21 CD Totalcapacity KW 6 35 548 541 505 409 _ 15 W 24 D 17 W 27 D 19 W 32 D 23 W WINTER A OUTDOOR CONDITIONS Conditions 11 C W 6 W 3 C W 1 W 6 W 8 W 15 18 20 22 32 28 268 2st 227 293 CE Service manual 93 MSG 30CR SUMMER Cooling mode OUTDOOR TEMPERATURE DRY oo amo wo soe 21 CD _Totalcapacity KW se rao p eee 59 15 W 24 17 W 30 as 372 355 _ 27 C D Totalca capacity kW eo 2 722 66 19 W 32 C D Total capacity kW 10 12 971 939 873 798 752 23 W Sensitive capacitykW 7 79 757 737 690 638 3 03 3 19 333 359 399 413 94 MSG 30HR
26. e air flow system Bird tail propeller fan makes the outdoor unit run more quietly Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode 4 way valve control is only operated in the heating operation mode except defrosting operation Discharge pipe temperature protect Anti rust cabinet Made from electrolytic zinc steel sheet and anti rust coated components Valve protection cover protects the valves and prevents water from dripping Service manual 3 Dimension 3 1 Indoor unit et 1080 EN NN 1080 1250 Service manual 3 2 Outdoor unit m i 8 fo fu e fe Service manual 4 Specification MSG24CR MSG 24HR Power supply 1 220 240V 50Hz 1 220 240V 50Hz Capacity 2400 24000 hpt W 25 2 Rated current A 425 j 1 25 EER Buwh 8726 8726 Sapa 2 A Max Startingcurrent Mode QP407PT24C 0 407 124 _ Type Rotary Band Input W Compressor A Locked rotor Amp LRA A 5 J O5 Thermalprotector Intema Capacitor J uF 45 Refrigerantoil m
27. e normal working amp is less than 1A Swing motor DC12V Compressor single phase power supply Its normal working amp is less than 15A 10 2 Proper symbols and their meaning T1 Indoor ambient temperature T2 Indoor evaporator temperature T3 Outdoor condenser temperature TS Setting temperature through the remote controller lasec Self protection amp of compressor continue three seconds until turns off the compressor Self protection amp of compressor continue five minutes until turns off the compressor lan Self protection amp of outdoor fan indoor fans when they change from higher wind to lower wind Amp self protection return value TE1 Anti cold wind from Fan Off to Breeze temperature TE2 Anti cold wind from Breeze to Setting Fan Speed temperature TE3 Anti cold wind from Setting Fan Speed to Breeze temperature TE4 Anti cold wind from Breeze to Fan Off temperature Evaporator low temperature protection entering temperature TE6 Evaporator low temperature protection restoring temperature Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature Evaporator high temperature protection restoring temperature TE10 Condenser high temperature protection compressor off temperature TE11 Condenser high temperature protection restoring temperature TE14 The indoor restoring temperature when the compres
28. e with a set temp of 24 C 10 11 3 All protections of remote control cooling are available at forced cooling operation 10 11 4 Forced Auto function Select forced auto function with the forced auto button or the switch 39 Service manual In forced auto status the A C operates at remote control mode with a set temp of 24 C Manual operation is controlled by touching buttons and divided into force cooling and forced auto mode It transfer between these two modes by pressing the buttons the cycling order of the button press is as below graph show to you Remote Forced Forced mode auto cooling 0 0 10 12 Sleep mode 10 12 1 The sleep function is available at cooling heating or auto mode 10 12 2 Cooling The set temperature rise 1 C per hour Two hours later the set temperature will maintain as a constant and the fan speed 1 kept at low speed Room temperature 1 2 Time 10 123 Heating The set temperature decrease 1 C per hour Two hours later the set temperature will maintain as a constant and the air circulation is at low speed Anti cold function takes precedence over all Room temperature 1 2 Time 10 12 4 Auto After an hour running under economic mode the set temp will rise 1 if it is under cooling mode the 40 Service manual set temp will decrease 1 it is under heating mode the set temp will be changeless if it is unde
29. hen the air conditioner is in AUTO operation 6 ECON indicator This indicator illuminates while the air conditioner is in economic operation 43 Service manual 12 2 Troubleshooting For cooling mode Operation Timer Failure phenomenon p Indoor fan speed has been out of control for over 1 minute Indoor room temp or evaporator sensor is open circuit or short circuit Over current protection of the compressor occurs 4 times EEROM error No over zero signal r Extinguish sc Flash at 5Hz For heat pump mode Operation Timer Defrosting Failure phenomenon lamp lamp lamp Over current protection of the compressor occurs 4 times se j X k Indoor fan speed has been out of control for over 1 minute X gt x Nooverzeosigna x x Temp sensor on indoor evaporator is open circuit or short circuit X X x Indoor room temp sensor is opencircuitorshortcircut X x EEROM error 11 On x X r Extinguish se Flash at 5Hz 44 Service manual 12 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner cant be operated After energizing the air conditioner can not be operated Check if AC 220V power supply outputs to indoor PCB Yes Check if AC 220V exists at the primary coil of transformer I Indoor PCB is defective Check if AC 14 5V exists at the secondary coil
30. ng by room temperature Room temperature sensor Pipe temperature sensor Room temperature control Maintain the room temperature in accordance with the setting temperature Starting temperature control Indoor fan is delayed for 5 sec at the starting Time Delay Safety control Restarting is for approx 3 minutes Indoor fan speed control High med low breeze Operation indication Lamps LED Light up in the LED LCD for each operation mode Two direction air vane The unit will decide the louver direction according to operation mode Sleep mode auto control The fan is turn to low speed cooling heating The unit will be turn off after seven hours Independent dehumidification The function is usually used in rainy days in springtime or damp areas Self diag function The function will be operate in any operation mode Air flow Direction control The louver can be set at the desired position or swing up and down automatically Auto mode The unit can be change by the room temperature Anti cold function Prevent the cold wind at the beginning of unit start Temp Compensation Defrost mode Auto restart function Flexible wiring connection Easy clean panel Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON OFF operations Low ambient kit The unit can operate in cooling mode at low ambient temperature conditions Low nois
31. of the product n Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury n Do not step on pr put anything on the product outdoor units There is risk of personal injury and failure of product n Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage n Do not insert hands or other object through air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury n Do not drink the water drained from the product It is not sanitary could cause serious health issues n Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury n Replace the all batteries in the remote control with new ones of the same type Do not mix old and mew batteries or different types of batteries There is risk of fire or explosion n Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode n If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards Service manual 2 Function Operation ON OFF by remote controller Sensi
32. of transformer Yes No Y Take off the secondary plug of transformer and then check if AC 14 5V exists at the secondary coil of transformer No v Ye Indoor PCB is defective Indoor PCB is defective 45 Service manual 12 4 Resetting phenomenon often occurs during operation That is automatically entering to the status when power is on The reason is that the instantaneous voltage of main chip is less than 4 5V Check according to the following procedure Resetting phenomenon often occurs during operation Yes Y After changing indoor PCB check if the failure realease 71 Yes Indoor PCB is defective After changing indoor fan motor check if the failure realease YES l Power supply circuit has problems 12 5 Operation lamp flashes and Timer lamp off 15 connector connection good Is voltage being applied to the fan motor Yes Fan motor is defective Repair the connector Indoor PCB is defective 12 6 Operation lamp flashes and Timer lamp on 15 connector connection good Replace the sencor 46 Repair the connector Service manual 12 7 Operation lamp off and Timer lamp flashes Operation lamp off and Timer lamp flashes After changing the main control board check if the failure realease Indoor PCB is defective
33. off the vacuum pump 4 Disconnect the charge hose from the vacuum pump 6 Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle 29 Service manual 8 9 Gas charging Indoor unit LUZ Liquid side Outdoor unit wu 2 UEZ 2 valve a _ Valve FT id Open lt lt pred Charging j cylinder Procedure 1 Connect the charge hose to the charging cylinder 6 Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder 2 Purge the air from the charge hose 6 Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant the system cannot be charge with the specified amount of refrigerant if can be charged with a little at a time approximately 150g each timeO while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port 6 Stopping partway will allow the refrigerant to be discharged the system has been charged with liquid refrigerant while operating the air conditioner turn off the air
34. or and the outdoor fan T indoor temperature Compressor on outdoor fan on Room temp down Room temp up Compressor off outdoor fan off i 0 1 T Ts Auto fan at cooling mode High fan Mid fan Room temp down Room temp up Low 1 4 5 T Ts Anti freezing control to indoor evaporator at cooling mode T evaporator temp 36 x Service manual Compressor and outdoor fan on EVAP temp down EVAP temp up Compressor and outdoor fan off after 5 mins f TES TE6 T Condenser high temperature protection only for heat pump Compressor and outdoor fan on COND temp down COND temp up Compressor and outdoor fan off after 5 mins TE11 TE10 T 10 7 Dehumidifying mode Indoor fan speed at low speed Protection is same as cooling mode 10 8 Heating mode 10 8 1 Generally the 4 way valve is open in heating mode but it is closed in defrosting mode 4 way valve must delay 2 minutes compared with compressor if the compressor changed into non heating mode or turned off 4 way valve doesn t delay in dehumidifying mode 10 8 2 Generally the outdoor fan is turned off with the on off action of compressor in heating mode except for the defrosting mode or the end of defrost 10 8 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still valid Compresso
35. ount the 2 way and 3 way valve s stem nuts and service port caps B Use a torque wrench to tighten the service port cap to a torque of 1 8 kg m 5 Be sure to check for gas leakage 26 Service manual 8 6 Re air purging Re installation QA 0 Gas side Charging cylinder Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve B Leave the valve on the charging cylinder closed 3 Air purging 6 Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minutes repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant 5 Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position 5 Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap 5 Be sure to use a torque wrench to tighten the service port cap to a torque 18N m 5 Be sure to check the gas leakage
36. r fan only mode the condition will be the same after the air conditioner running under economic mode after 2 hours and during the next time the set temp do not change The total time is 7 hours after 7 hours the unit stops 10 13 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns 41 Service manual 11 Model and Parameters Lc A I BSEC 2 2 2 GEN BRENNEN e t gt 3Ph 380 420V Moss seen won msec 2 9 34 ema L _ TENEO 5 P 6 8 9v 9 mec d o e 9 42 Service manual 12 Troubleshooting 12 1 Display board Infrared signal receptor OPERATION AUTO TIMER 67 C PRE DEF gt 6 Operation The indicator flashes once every second after power is and illuminates when the air conditioner is in operation Timer indicator The indicator illuminates then TIMER is set ON B PRE DEF indicator For cooling amp heating mode only The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating At this time PRE DEF indicator illuminates 6 Auto indicator This indicator flashes w
37. r and outdoor fan off Room temp down Room temp up Compressor and outdoor fan on Ts Ts 2 Ts 3 This parameter changed from 0 to 3 10 8 4 Indoor Fan actions at heating mode Indoor Fan can be set at HIGH MID LOW AUTO by using a remote controller but Anti cold wind M ren Service manual function prevails Anti cold wind control function at heating mode T indoor exchanger temp T temp down Fan off __ 2 u Setting fan speed Breeze T temp up TE4 TE1 10 8 5 Auto wind at heating mode T indoor temp Med fan Room temp down Room temp up High fan 0 2 T Ts 10 8 6 Indoor evaporator high temperature protection at heating mode T indoor exchanger temp T temp down Compressor off Fan off Compressor on Fan off T temp up Compressor on Fan on TE9 T 10 8 7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 10 9 Defrosting mode available for heating mode 10 9 1 Defrosting condition Defrost starts when either of the following lower than O C lasts for more than 40 minutes provided that the time period then the temperature is lower than 3 C consecutively reaches 3 minutes Calculate from the end of latest defrost evaporator high temp protection only closes outdoor fan with 38 Service manual the compressor still
38. sor is off on the heating mode TE16 The indoor evaporator temperature after the defrost action fan on temperature TC1 Outdoor condenser sensor temperature for the defrost condition 1 2 Condenser sensor temperature after defrost Outdoor condenser sensor temperature for the defrost condition 2 10 3 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protection for the compressor 34 Service manual Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode Anti cold air at heating mode Service manual 10 4 Protection 10 4 1 3 minutes delay at restart for compressor 10 4 2 Sensor protection at open circuit and breaking disconnection 10 4 3 Fan Speed is out of control When Indoor Fan Speed is too high higher than High Fan 300RPM or too low lower than 400RPM the unit stops and LED displays failure information and cant returns to normal operation automatically 10 4 4 Cross Zero signal error warning If there is no Cross Zero signals in 4 minutes the unit stops and LED displays failure information and can t returns to normal operation automatically 10 4 5 The current protection of the compressor 10 5 Fan only mode Fan speed is high mid low Auto 10 6 Cooling mode The 4 way valve is closed at cooling mode The action of the compress
39. unit air temp C DB Note The chart is the result from the continuous operation under constant air temperature conditions 548 Service manual However excludes the initial pull down stage Service manual 7 Schematic diagram and Wiring diagram 7 1 schematic diagram Dr HEE pio np s le E z s iz ETERN LCE KFE32GW TIY s REITT BAT EET ERIT BAT carey EAT WPT WAT BANT 4 CE KFRISOWHY SEIGEQTET AT GAT 3 CE KFR26GWIY A 8 8381717 KAT CE KFR32GW Y REIT BRITT ERM LAT TEER ERELEDEN RARER 00 CE KFREMGW LY SI EN RAAS BRT FERME LESSER GERHEES Bik Se IE MET EE dE BE ani EEE AT BENE Cut han Urs 11K iret ul k E aa 15 Service manual 7 2 Wiring diagram 7 2 1 Cooling mode MSG 24CR MSG 30CR DISPLAY m DIAGRAM R UNIT SENSOR 8 a ROOM TEMPERATURE SE 2 TRANSFORME 5 x RRENT INDUCTOR FUSE 3 15A 250V CNTS RE Y
40. use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the Service manual unit is so equipped There is risk of physical injury electric shock or product failure n When the product 1 soaked flooded or submerged contact an Authorized service center There is risk of fire or electric shock n Be caution that water could not enter the product There is risk of fire electric shock or product damage Ventilate the product from time to time when 5 operating it together with stove There is risk of fire or electric shock Turn the main power off when cleaning or 5 maintaining the product There is risk of electric shock When the product is not be used for a long time 5 disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation n Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injur
41. wed n Incorrect operation due to ignoring instruction will cause harm or damage n Before service unit be sure to read this service manual at first 1 2 Warning y Installation n 2 2 2 2 2 2 n Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized service center Do not disassemble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury Be caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an Authorized service center There is risk of fire electric shock explosion or injury Do
42. wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak detector Note The air in the indoor unit and in the piping must be purged If air remains in the refrigeration piping it will affect the compressor reduce the cooling capacity and could lead to a malfunction of unit Be sure using a torque wrench to tighten the service port cap after using the service port so that it prevents the gas leakage from the refrigeration cycle n ee a Liquid side F Indoor unit Procedure 1 Recheck the piping connections 2 Open the valve stem of the 2 way valve counterclockwise approximately 90 wait 10 seconds and then set it to closed position 5 Be sure to use a hexagonal wrench to operate the valve stem 3 Check for gas leakage 6 Check the flare connection for gas leakage 4 Purge the air from the system 5 Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port 6 Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m 6 Set the 3 way valve to the opened position Outdoor unit CUM DEL C 7 Mounted the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage 6 At this time especially check for gas leakage from the 2 way and 3 way stem nuts and
43. y and product damage y CAUTION n Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product n Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage n Keep level even when installing the product To avoid vibration of water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors n Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operational n Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods works of art etc It isa consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet or outlet of air flow 5 may cause product failure Use a soft cloth to clean Do not use harsh 5 detergents solvents etc There is risk of fire electric shock or damage to the plastic parts

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