Hisense AUC-18UR4SZAA1, Technical & Service Manual

Page 1: ...D 24UX4SZLH AUD 36UX4SAMH AUD 48UX6SPHH AUD 60UX6SPHH AUC 18UX4SGAA AUC 24UX4SZEA AUC 36UX4SAEA AUC 48UX6SPFA AUC 60UX6SPFA AUC 18UR4SZAA1 AUC 24UR4SAEA1 AUC 36UR4SAEA1 AUV 18UR4SZA1 AUV 24UR4SAA1 AUV...

Page 2: ...CURVE 44 5 ELECTRICAL DATA 44 5 1 Electric Wiring Diagrams 46 5 2 Electric Control 59 5 3 Dip Switch Setting of Outdoor 68 5 4 Digital Display Switch of Outdoor 69 5 5 Static Pressure Setting only for...

Page 3: ...8 1 Check Refrigerant System 110 8 2 Check Parts Unit 112...

Page 4: ...be install ure 24K 36K 50 8K 60K 80P optional insta nvironment F ect the enviro d OFF be set to auto n design ena allation Requ et type is usu nstalled with E MANUAL V3 3 oner led inside the Pa 80Pa...

Page 5: ...r supply is recovered after break all preset are still effective and the air conditioner can run according to the original setting Fault Self diagnose Function When there is something wrong with the a...

Page 6: ...ERVICE Condition ce be installed in nvironment F e environme d OFF t to automati sign enable t wer Break ply is recove n according unction hing wrong w n be read from E MANUAL V3 3 ner nside the ceil...

Page 7: ...Friendly New Refrigerant R410A R410A can protect the environment and do not harm to the ozone layer 24 hour Timer ON and OFF This Timer can be set to automatically turn the unit on or off within a 24...

Page 8: ...ONDITIONER TECHNICAL SERVICE MANUAL V3 3 5 Fault Self diagnose Function When there is something wrong with the air conditioner the micro computer could diagnose the faults which can be read from the d...

Page 9: ...1 1 G GE EN NE ER RA AL L DC IINVER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 6 1 2 Product Lineup Type Model 18 24 36 48 60 Duct Type AUD Cassette Type AUC Ceiling Floor type AUV...

Page 10: ...tion S Refrigerant R410A F Refrigerant R22 4 220V 240V 50HZ 1P 6 380V 415V 50HZ 3P X Wire Romote Controller R Wireless Romote Controller Cool Capacity 18x10 Btu h Air Conditioner Unit K Outdoor Unit I...

Page 11: ...GE EN NE ER R VER AIR COND 4 Produ uct Typ Model ndoor utdoor Model ndoor utdoor R RA AL L ITIONER TECHN uct Pict e NICAL SERVICE ture AUD 18UX4 AUD 36UX4 E MANUAL V3 3 4SGKL 4SAMH 3 AUD 24UX4S AUD 48...

Page 12: ...1 1 DC IINV M I Ou M I Ou G GE EN NE ER R VER AIR COND Model ndoor utdoor Model ndoor utdoor R RA AL L ITIONER TECHN NICAL SERVICE AUD 18UX4 AUD 36UX4 E MANUAL V3 3 4SZKL1 4SAMH1 3 AUD 24UX4S 9 SALH1...

Page 13: ...I Ou G GE EN NE ER R VER AIR COND assette T Model ndoor utdoor Model ndoor utdoor R RA AL L ITIONER TECHN ype NICAL SERVICE AUC 18UX4 AUC 36UX4 E MANUAL V3 3 4SGAA 4SAEA 3 AUC 24UX4S AUC 48UX6S AUC 6...

Page 14: ...1 1 DC IINV M I Ou G GE EN NE ER R VER AIR COND Model ndoor utdoor R RA AL L ITIONER TECHN NICAL SERVICE AUC 18UR4 E MANUAL V3 3 4SZAA1 3 AUC 24UR4S AUC 36UR4S 11 SAEA1 SAEA1...

Page 15: ...EN NE ER RA AL L DC IINVER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 12 Ceiling Floor Type Model AUV 18UR4SZA1 AUV 24UR4SAA1 Indoor Outdoo r Model AUV 36UR4SAB1 AUV 48UR6SPC AUV 60UR6SPC Indoor O...

Page 16: ...1 1 G GE EN NE ER RA AL L DC IINVER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 13 DISPLAY PANEL Cassette Type 18k 24K 36K 48K 60K...

Page 17: ...1 1 G GE EN NE ER RA AL L DC IINVER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 14 Ceiling Floor type...

Page 18: ...11 5 6 7 25 11 5 15 20 5 Btu h 19 100 27 600 37 500 19 100 24 700 39 200 51 200 70 000 Dehumidification L h 1 4 1 8 2 4 1 4 1 8 2 4 3 3 4 5 Rated input Cooling kW 1 5 2 3 3 05 1 552 1 99 3 11 3 92 5 2...

Page 19: ...r p m 1130 850 950 10 Pa 1000 910 810 30 Pa 1060 980 900 30P a 1130 850 950 10 Pa 1070 990 860 50 Pa 1150 1070 1020 50Pa 1250 1200 1100 120Pa 1250 1200 1100 120Pa Fan speed Outdoor type r p m tube axi...

Page 20: ...R 41 43 49 43 51 49 53 49 53 Outdoor Hi Med Low dB A 62 SOUND POWER 66 SOUND POWER 70 SOUND POWER 56 53 58 58 60 60 Refrigerant piping Gas Liquid mm 12 7 6 35 15 88 9 52 15 88 9 52 12 7 6 35 15 88 9 5...

Page 21: ...00 58000 Heating kW 5 6 1 8 7 2 8 2 2 5 10 11 0 3 05 13 8 5 6 7 11 5 15 20 Btu h 19 100 6 100 24 600 28 000 8 500 34 100 37 500 10 400 47 100 19100 23900 39200 51200 68200 Dehumidification L h Rated i...

Page 22: ...CTRIC Fan motor Indoor Mode l EHDS50AQ ARW5901QH EHDS50AQH YDK95 28 4 B ARW5901QH EHDS50AQH SIC72FW D8124 2B SIC72FW D8124 2 B Outdoor Mode l ARW4401QH SIC 71FW D812 1 1 SIC 71FW D812 1 1 YDK29 6I 22...

Page 23: ...95 1010 990 95 1010 990 95 Weight Indoor Net Gross kg 21 25 5 24 30 26 32 21 25 5 24 30 26 32 29 35 29 35 Outdoor Net Gross kg 45 51 69 73 70 74 35 5 39 50 56 70 74 101 107 108 112 Panel Net Gross kg...

Page 24: ...3 3 4 2 5 65 Rated Current Cooling A 7 0 10 1 13 9 7 5 10 8 Heating A 8 0 13 0 15 0 8 0 11 3 Max input kW 2 5 3 6 5 1 6 2 9 38 Max Current A 12 0 15 9 22 5 13 0 17 7 EER COP 3 23 3 31 3 04 3 10 3 02...

Page 25: ...or type r p m tube axial Speed Hi Med Low r p m 0 810 0 810 0 810 500 600 700 500 600 700 Air circulation Indoor Hi Med Low m h 800 1100 1600 2000 2000 Outdoor Hi Med Low m h Static Pressure Default S...

Page 26: ...05 9 52 19 05 9 52 Max refrigerant pipe length m 15 30 30 50 50 Max difference in level m 7 5 15 15 20 outdoor blow 15 20 outdoor blow 15 Connection method Flare Connection Power wiring mm 2 3 core x1...

Page 27: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 1 3 OUTLINES AND DIMENSIONS 3 1 INDOOR Duct type...

Page 28: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 2...

Page 29: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 3 Cassette Type 18k...

Page 30: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 4...

Page 31: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 5 24K 36K 48K 60K...

Page 32: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 6...

Page 33: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 7 Ceiling Floor Type...

Page 34: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 8 3 2 OUTDOOR 18K AUW 18U4SG...

Page 35: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 9 18K MODEL AUW 18U4SZ1 24K MODEL AUW 24U4SZ...

Page 36: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 10 24 36K MODEL AUW 24U4SA1 AUW 36U4SA1 AUW 36W4SA...

Page 37: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON N DC INVERTER UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 11 48K 60K MODEL AUW 48U6SP AUW 60U6SP...

Page 38: ...4 4 D DI IA AG GR RA AM M D DA AT TA A DCINVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 33 4 Diagrams DATA 4 1 Piping Diagrams 18k type...

Page 39: ...utdoor Stop Valve Coil temperature sensor Accumulator Ambient temperature sensor Stop Valve Discharge temperature sensor Discharge Pressure Switch 4 Way Valve Ambient temperature sensor Coil temperatu...

Page 40: ...ve Coil temperature sensor Accumulator Ambient temperature sensor Stop Valve Discharge temperature sensor Discharge Pressure Switch 4 Way Valve Ambient temperature sensor Coil temperature sensor Outdo...

Page 41: ...educe the pipe length Long pipe may cause capacity of the indoor unit incline Outdoor unit precharged Total refrigerant pipe length 0m 5m 5m 60m AUW 18U4SG 1270g 0g Xg 15g m Total pipe length m 5 AUW...

Page 42: ...40V 50Hz 3 2 5 4 0 75 48K 60K 380 415V 3N 50Hz 5 2 5 4 0 75 Use an ELB Electric Leakage Breaker If not used it will cause an electric shock or a fire Do not operate the system until all the check poin...

Page 43: ...will cause a serious Accident NOTES 1 Follow local codes and regulations when selecting field wires 2 The wire sizes marked in the table are selected at the maxim current of the unit according to the...

Page 44: ...CAL SERVICE MANUAL V3 3 39 4 4Air flow and ESP Chart Diagrams for duct type 18K L M H 0 5 10 15 20 25 30 35 500 600 700 800 900 1000 ESP Air flow m3 h 18K Curve for 10Pa ESP 10 15 20 25 30 35 40 45 50...

Page 45: ...NICAL SERVICE MANUAL V3 3 40 24K L M H 10 20 30 40 50 60 70 80 90 700 800 900 1000 1100 1200 1300 1400 ESP Air flow m3 h 24K Curve for 50Pa ESP L M H 40 50 60 70 80 90 100 110 120 130 600 700 800 900...

Page 46: ...IONER TECHNICAL SERVICE MANUAL V3 3 41 36K AC MOTOR L M H 30 40 50 60 70 80 90 900 1100 1300 1500 1700 1900 ESP Air flow m3 h 36K Curve for 50Pa ESP L M H 50 60 70 80 90 100 110 120 130 800 1000 1200...

Page 47: ...NDITIONER TECHNICAL SERVICE MANUAL V3 3 42 48K L M H 50 60 70 80 90 100 110 120 1500 1700 1900 2100 2300 2500 ESP Air flow m h 48K Curve for 80Pa ESP L M H 90 100 110 120 130 140 150 160 1500 1700 190...

Page 48: ...NDITIONER TECHNICAL SERVICE MANUAL V3 3 43 60K L M H 50 60 70 80 90 100 110 120 1500 1700 1900 2100 2300 2500 ESP Air flow m h 60K Curve for 80Pa ESP L M H 90 100 110 120 130 140 150 160 1500 1700 190...

Page 49: ...4 4 D DI IA AG GR RA AM M D DA AT TA A DCINVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 44 4 5 PERFORMANCE CURVE 18K Cooling Capacity 24K Cooling Capacity 36K Cooling Capacity...

Page 50: ...DCINVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 45 48K 60k 10 00 11 00 12 00 13 00 14 00 15 00 16 00 10 15 20 25 Cooling Capacity kW 21 28 35 43 14 00 15 00 16 00 17 00 18 00 19 00 20 00 10 1...

Page 51: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 46 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 46 5 1 Electrical wiring diagrams INDOOR UNIT Duct type AUD 18UX4SKL AUD 18UX4SKL1...

Page 52: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 47 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 47 AUD 24UX4SLH AUD 36UX4SMH...

Page 53: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 48 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 48 AUD 24U4SLH1 AUD 36U4SMH1...

Page 54: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 49 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 49 AUD 48UX4SHH AUD 60UX4SHH...

Page 55: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 50 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 50 Cassette type 18k 24K 36K 48K 60K...

Page 56: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 51 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 51 Ceiling Floor type 18K 48K 60K 24K 36K...

Page 57: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 52 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 52 OUTDOOR UNIT 18K AUW 18U4SG...

Page 58: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 53 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 53 AUW 18U4SZ1...

Page 59: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 54 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 54 24K AUW 24U4SZ...

Page 60: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 55 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 55 AUW 24U4SA1...

Page 61: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 56 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 56 36K AUW 36U4SA...

Page 62: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 57 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 57 AUW 36U4SA1...

Page 63: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 58 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 58 AUW 48U6SP AUW 60U6SP...

Page 64: ...R RI IC CA AL L D DA AT TA A 59 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 59 5 2 Electric control Board 1 Indoor control board Duct type 18K 48K 60K AUD 24UX4SLH AUD 36UX4SMH AUD 24UX4...

Page 65: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 60 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 60 CASETTE Type 18K 24K 36K 48K 60K...

Page 66: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 61 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 61 Ceiling Floor type 18k 48k 60k 24k 36k...

Page 67: ...TDOOR CONTROL BOARD AUW 18U4SG 1 CONTROL BOARD AUW 18U4SG CONTROL BOARD AUW 24U4SZ AC N IN AC L IN Communication SI Communication N High pressure switch Liquid and Gas Sensor Outdoor suction coil Sens...

Page 68: ...63 CONTROL BOARD AUW 36U4SA AC N IN AC L IN AC L OUT Communication SI Communication N Discharge Sensor Suction Sensor coil defrost Sensor Outdoor Sensor High pressure switch Low pressure switch DC DC...

Page 69: ...4 CONTROL BOARD AUW 48U6SP AUW 60U6SP Heater N POWER IN Heater L Transformer 4 valve AC contactor Down fan motor Up fan motor Transformer Communication N Communication SI IPM SI Discharge sensor Coil...

Page 70: ...AUW 18U4SZ1 AUW 24U4SA1 AUW 36U4SA1 AC N IN AC L IN AC L OUT Communication SI Communication N Discharge Sensor Suction Sensor coil defrost Sensor Outdoor Sensor High pressure switch Low pressure switc...

Page 71: ...acitor To Electrolytic Capacitor To Main Control Board IPM Power To Electrolytic Capacitor To PFC Inductor 2 To PFC Inductor 1 AC N IN AC L IN AUW 24U4SZ AUW 36U4SA To Main Control Board To Compressor...

Page 72: ...RI IC CA AL L D DA AT TA A 67 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 67 AUW 48U6SP AUW 60U6SP IPM SI Compressor Compressor Compressor Inductor Inductor L1 Contacto Contact AC IN W A...

Page 73: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 68 DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 68 5 3 DIP SWITCH SETTING OF OUTDOOR AUW 18U4SZ1 AUW 24U4SA1 AUW 36U4SA1 AUW 36W4SA 48K 60K...

Page 74: ...r running parameters There are 3 buttons on the digital display board 1 SWITCH button Indoor parameters and outdoor parameters can be selected in turn by pressing it P outdoor unit H indoor unit 2 INC...

Page 75: ...ncy P 2 Driver Frequency P 4 Outdoor Electronic expansion valve Opening P 5 Outdoor Electronic expansion valve Target Opening P 6 Upper DC Motor Revolving Speed P 8 AC Input Voltage P 9 Current P 10 M...

Page 76: ...can change the static pressure by changing the fan motor terminal which refer to following Fig below FOR DC FAN MOTER DUCT AIR CONDITIONERS AUD 24UX4SALH1 AUD 36UX4SAMH1 Default static pressure is 30...

Page 77: ...re Display Type Integer 0 Default display set temperature 1 Default display room temperature others invalid 4 Ratio of temperature sensed by Wire remote controller cooling mode Integer 0 10valid more...

Page 78: ...erature Limit is valid Heating Temperature Limit is invalid 2 Cooling Temperature Limit is invalid Heating Temperature Limit is valid 3 Cooling Heating Temperature Limit are all valid 19 The Lowest Se...

Page 79: ...1 7 14 6 77 16 405 9517 436 9251 486 3954 7 09 10 17 15 384 2888 413 3808 442 9105 7 04 6 67 14 363 9047 391 2386 418 9563 6 99 6 62 13 344 7169 370 4072 396 4325 6 94 6 56 12 326 6497 350 8019 375 24...

Page 80: ...95 5 13 4 85 27 50 1192 52 8058 55 4778 5 09 4 82 28 48 0168 50 5684 53 1058 5 05 4 78 29 46 0133 48 4371 50 8472 5 00 4 74 30 44 1034 46 4046 48 6960 4 96 4 71 31 42 2825 44 4711 46 6466 4 92 4 66 32...

Page 81: ...3 53 3 38 69 9 9271 10 2863 10 6429 3 49 3 35 70 9 5912 9 9348 10 2756 3 46 3 32 71 9 2682 9 5968 9 9231 3 42 3 29 72 8 9576 9 2720 9 5841 3 39 3 26 73 8 6589 8 9597 9 2583 3 36 3 23 74 8 3716 8 6594...

Page 82: ...0582 2 73 2 67 109 2 8118 2 8915 2 9717 2 76 2 70 110 2 7311 2 8093 2 8881 2 78 2 73 111 2 6531 2 7299 2 8072 2 81 2 75 112 2 5776 2 6530 2 7289 2 84 2 78 113 2 5046 2 5785 2 6531 2 87 2 81 114 2 4340...

Page 83: ...96 33 06 34 17 3 33 3 25 16 30 48 31 47 32 49 3 15 3 14 15 29 07 29 97 30 89 3 00 2 98 14 27 73 28 56 29 39 2 91 2 82 13 26 46 27 22 27 98 2 79 2 72 12 25 26 25 95 26 64 2 66 2 59 11 24 11 24 75 25 38...

Page 84: ...98 27 4 864 5 072 5 286 4 10 4 05 28 4 687 4 891 5 101 4 17 4 12 29 4 517 4 717 4 924 4 24 4 20 30 4 355 4 550 4 753 4 29 4 27 31 4 198 4 390 4 589 4 37 4 34 32 4 048 4 236 4 431 4 44 4 40 33 3 904 4...

Page 85: ...6 77 71 1 095 1 175 1 261 6 81 6 82 72 1 061 1 140 1 224 6 93 6 86 73 1 029 1 106 1 188 6 96 6 90 74 0 9977 1 073 1 153 7 02 6 94 75 0 9676 1 041 1 120 7 05 7 05 76 0 9385 1 011 1 088 7 17 7 08 77 0 9...

Page 86: ...04 0 4168 0 4561 0 4988 8 62 8 56 105 0 4056 0 4440 0 4859 8 65 8 62 106 0 3947 0 4323 0 4733 8 70 8 66 107 0 3841 0 4210 0 4611 8 76 8 70 108 0 3739 0 4100 0 4493 8 80 8 75 109 0 3640 0 3993 0 4379 8...

Page 87: ...and the air conditioner s operation is irrelevant with room temperatures If a remote signal has been received during the emergency run the machine will operate upon the command of such a remote signal...

Page 88: ...function is started 3 In the cooling mode the set temperature will rise automatically after the sleep function is started 4 In default the setting is to cancel the sleep function Turning off the unit...

Page 89: ...for cassette type 2 10 Dehumidifying method Remote control setting dehumidifying mode indoor machine forced to run at low speed high power key or a strong bond also maintain a low wind speed the outdo...

Page 90: ...ture is too high the compressor will be automatic protection 3 Exhaust temperature protection To prevent deterioration due to high exhaust temperature of compressor the machine will realize the real t...

Page 91: ...e four way valve to stop working for a period of time after compressor disconnect 7 Start up Protection To prevent compressor from restart frequently in the condition that system pressure has not been...

Page 92: ...series In the case of no button locked continue pressing CLOCK button for 8 times fault codes will display on the LCD for 10 seconds automatically disappears after 10seconds Continue pressing SLEEP bu...

Page 93: ...CODES BY DISPLAY PANEL CASSETTE type and CEILING FLOOR type Display by lamp indicator Lamp RUN LED2 red and Lamp DEFROST LED5 green flashing Lamp RUN display fault code ten digit number lamp DEFROST...

Page 94: ...7 7 T TR RO OU UB BL LE E S SH HO OO OT TI IN NG G DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 89...

Page 95: ...TROL flash 300mS T1 off 300mS T2 after 2000mS T3 fault code repeat displays as shown below T1 T2 T3 Fig 2 LED FALSH CONTROL 3 Duct type indoor units of VRF FAULT CODE DISPLAY BY INDOOR BOARD LED2 and...

Page 96: ...control box Fault code display by indicate lamps of outdoor control board flash The times that the lamp flashes equal to fault code LED FALSH CONTROL flash 300mS T1 off 300mS T2 after 900mS T3 fault c...

Page 97: ...CHNICAL SERVICE MANUAL V3 3 92 FOR INVERTER UNITARY AIR CONDITONER VRF VRF Indoor unit can indicate both indoor failure and outdoor failure but outdoor only indicate outdoor s FOR MULTI SPLIT TYPE Err...

Page 98: ...E S SH HO OO OT TI IN NG G DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 93 3 Fault code display Driver Board The lamp of driver board flash shows failure occur Or fault code can be check...

Page 99: ...current is over high because of the supply voltage is too low 3 The on off compressor is blocked 4 Overload in cooling mode 5 Overload in heating mode 1 Replace the electrical control board components...

Page 100: ...t fuse 7 Choose suitable communication cable refer to the user manual 8 Phase current imbalance 1 The supply voltage fluctuates more than 4 2 The compressor power cord connect loose 3 The AC contactor...

Page 101: ...ard is abnormal 4 Overload in cooling 5 Overload in heating 1 Reconnect the wiring the high pressure protector 2 Replace the high pressure protector 3 Replace the outdoor control board 4 Please refer...

Page 102: ...valve A tube thin sensor fault 1 The wiring of the sensor for the expansion valve A thin tube connect loose 2 The sensor for the expansion A thin tube is failure 3 The sampling circuit is abnormally 1...

Page 103: ...B thick tube 2 Replace the sensor for the expansion valve D thick tube 3 Replace the outdoor control board FOR MUTI SPLIT outdoor 31 The discharge pressure is too high 1 Overload in cooling 2 Overloa...

Page 104: ...cable between the control board and the driver board 3 Replace the driver board 4 Replace the control board Applied for Inverter Unitary type Free Match 46 1 IPM and control board communication fault...

Page 105: ...r DC fan motor stall fault 1 The fan motor is failure 2 The outdoor control board is failure 3 The driver board is failure 1 Replace the upper fan motor 2 Replace the outdoor control board 3 Replace t...

Page 106: ...e 3 Reinstalled the outdoor unit refer to the installation user manual 4 Normally protection 92 the ratio of the discharge pressure than the suction pressure is too large 1 The filter of the expansion...

Page 107: ...is not enough Discharge the refrigerant and charge the refrigerant refer to the rating label VRF 97 4 way valve commutation failure fault 1 The wiring of the 4 way valve coil connect loose 2 The 4 way...

Page 108: ...d Only for MUTI SPLIT 33 Room temperature sensor fault 1 The cable of the indoor room temperature sensor connect loose 2 The indoor room temperature sensor is failure 3 The sampling circuit is abnorma...

Page 109: ...nsor failure 1 The cable of the humidity sensor connect loose 2 The humidity sensor is failure 3 The indoor control board is failure 1 Reconnect the cable of the humidity sensor 2 Replace the humidity...

Page 110: ...or is failure 5 The indoor control board is failure 1 Reassembly the front panel 2 Reconnect the cable of the switch and the panel motor 3 Replace the switch components 4 Replace the panel motor 5 Rep...

Page 111: ...tank is too high over 70 4 No water in tank 1 Change temperature sensor 2 Change Control board 3 Normally protection should lower water temperature 4 Open fill pump to supply water Check whether there...

Page 112: ...control board 72 Indoor fan motor fault 1 The cable of the indoor fan motor connect loose 2 The cable of the indoor fan motor is failure 3 The indoor fan motor is failure 4 The indoor control board is...

Page 113: ...the evaporator 3 Replace the indoor control board 84 Evaporator outlet Temperature Sensor Fault 1 The cable of the coil temperature sensor of the evaporator is failure 2 The coil temperature sensor of...

Page 114: ...ange wire remote controller F1 241 Wire remote controller temperature sensor failure 1 Temperature sensor of wire remote controller is abnormal 2 Wire remote controller control board is abnormal Chang...

Page 115: ...r unit turn off itself after 30s at the same time the unit do not display the error code please check the fire and the socket of the control board Note 2 If the indoor unit display the 75 76 77 78 err...

Page 116: ...2 The indoor ambient temperature is too high Please use within allowable temperature range 3 The air outlet and air inlet of the indoor unit is short circuit Adjust the installation of the indoor uni...

Page 117: ...load is too large 4 Compressor demagnetization 5 Compressor oil shortage serious wear of crankshaft 6 The compressor insulation fault 1 Check compressor wire 2 Change driver board 3 Turn on the machin...

Page 118: ...ver board fault 3 Compressor oil shortage serious wear of crankshaft 4 The compressor insulation fault 1 Check the system 2 Change the driver board 3 Change the Compressor 4 Change the Compressor 14 I...

Page 119: ...driver board 2 Inverter DC low voltage fault 3 Inverter AC current overload fault 4 Out of step detection 1 Compressor phase lost 2 Bad driver board components 3 The compressor insulation fault 1 Che...

Page 120: ...rd 14 PFC LOW voltage detected failure 15 AD offset abnormal detected failure Driver board failure Change the driver board 16 Inverter PWM logic set fault 17 Inverter PWM initialization failure 18 PFC...

Page 121: ...ICAL SERVICE MANUAL V3 3 116 8 1 Check refrigerant system TEST SYSTEM FLOW Conditions Compressor is running The air condition should be installed in good ventilation Tool Pressure Gauge Technique see...

Page 122: ...is blown by N2 Check check valve and 4 way valve If the pressure is close to static pressure NO NO 4 way valve collude or compressor exhaust very ebb yes NO yes Heating mode Test system pressure Does...

Page 123: ...G G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 118 8 2 Check parts unit 1 INDOOR FAN MOTOR Duct type 18K YSK110 40 4 A HS16 M1 146 15 M2 33 15 M3 43 15 A1...

Page 124: ...8 8 C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 119 AUD 24UX4SLH Y6S419C56 AUD 24UX4SLH1 DC MOTOR AUD 36UX4SMH1 DC MOTOR...

Page 125: ...8 8 C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 120 AUD 36UX4SMH Y7S423C024...

Page 126: ...8 8 C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 121 48K 60K...

Page 127: ...8 8 C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 122 Cassette 18k 25 24K 36K 48K 60K DC MOTOR...

Page 128: ...RTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 123 Ceiling Floor type 18K YSK110 22 4 A M 187 A1 37 5 A2 27 8 A3 146 24K DC MOTOR SIC 70CW F1100 6 36K DC MOTOR SIC 70CW F1140 3 48K 60K Y7S423C032...

Page 129: ...est in voltage TOOL Multimeter Insert screwdriver into to rotate indoor fan motor slowly for 1 revolution or over and measure voltage YELLOW and GND on motor The voltage repeat 0V DC and 5V DC Notes 1...

Page 130: ...8121 1 36K MOTOR MODEL SIC 71FW D8121 1 Circuit diagram AUW 18U4SG YDK29 6I 22 Hot Protector 130 Capacitor A The Auxiliary Winding M The Main Winding TP Winding C PINK YELLOW PURPLE WHITE BROWN A3 A2...

Page 131: ...inding resistance at 20 M 83 0 A1 23 4 A2 14 0 A3 63 5 Test in resistance TOOL Multimeter Test the resistance of the main winding The outdoor fan motor is fault if the resistance of main winding 0 sho...

Page 132: ...C CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 127 3 COMPRESSOR COMPRESSOR EXAMINE AND REPAIR AUW 18U4SG DA130S1C 20FZ AUW 18U4SZ1 DA131S1B 28...

Page 133: ...C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S DC INVERTER AIR CONDITIONER TECHNICAL SERVICE MANUAL V3 3 128 AUW 24U4SA1 DA230S2C 31MT AUW 36U4SA AUW 36U4SA1 DA250S2C 30MT AUW 48U6SP TNB306FP...

Page 134: ...otor lock 2 Discharge pressure value approaches static pressure value 3 Compressor motor winding abnormality Notes 1 Don t put a compressor on its side or turn over 2 Please assembly the compressor in...

Page 135: ...nce of winding 0 short circuit or open circuit 6 FUSE Checking continuity of fuse on PCB ASS Y 1 Remove the PCB ASS Y from the electrical component box Then pull out the fuse from the PCB ASS Y Fig 1...

Page 136: ...SERVICE MANUAL V3 3 131 The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ according...