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Hisense AUC-18HR4SUAA, Technical & Service Manual

The Hisense AUC-18HR4SUAA is a high-quality air conditioning unit that offers powerful cooling capabilities. For easy installation and maintenance, make sure to download the free Technical & Service Manual from manualshive.com to access step-by-step instructions and troubleshooting tips. Keep your Hisense unit running smoothly with the help of this manual.

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ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 

5 

¾

 

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 display and is convenient for maintenance. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for AUC-18HR4SUAA

Page 1: ...24HX4SZLH AUD 36HX6SAHH AUD 48HX6SPHH AUD 60HX6SPHH AUV 18HR4SUA1 AUV 24HR4SZA1 AUV 36HR6SAB1 AUV 48HR6SEC1 AUV 60HR6SPC1 AUV 18HR4SUA AUV 24HR4SZA AUV 36HR6SAB AUV 48HR6SPC AUV 60HR6SPC AUC 18HR4SUAA...

Page 2: ...ifference 40 4 3 Electric Diagrams 41 4 4Air flow and ESP Chart Diagrams for duct type 44 5 ELECTRICAL DATA 49 5 1 Electric Wiring Diagrams 49 5 2 Electric Control 65 5 3 DIP Switch Setting 68 5 4 Sta...

Page 3: ...8 CHECKING COMPONENTS 114 8 1 Check Refrigerant System 114 8 2 Check Parts Unit 116...

Page 4: ...o ce can be install ure 24K 36K 50 optional insta nvironment F ect the enviro d OFF be set to auto n design ena allation Requ et type is usu nstalled with SERVICE MANU oner led inside the 0Pa 80Pa 48...

Page 5: ...er 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...

Page 6: ...L S 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 SERVICE MANU ner nside the ceil Frie...

Page 7: ...nt 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...

Page 8: ...R CONDITIONER TECHNICAL SERVICE MANUAL V5 0 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 th...

Page 9: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 6 1 2 Product Lineup Type Model 18 24 36 48 60 Duct Type AUD Cassette Type AUC Ceiling Floor type AUV...

Page 10: ...ication S Refrigement R410A F Refrigement 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 Uni...

Page 11: ...odel door tdoor odel door tdoor R RA AL L R CONDITIONER ct Picture e AUD 18HX AUD 18HX AUD 48HX R TECHNICAL S e X4SUNL 4SUNL1 6SEHH1 SERVICE MANU AU AU AU AU AU UAL V5 0 UD 24HX4SZLH UD 24HX4SZLH UD...

Page 12: ...T odel door tdoor odel door tdoor R RA AL L R CONDITIONER ype AUC 18HR AUC 18HR AUC 48HR R TECHNICAL S R4SUAA R4SUAA1 R6SEHA1 SERVICE MANU AU AU AU AU AU UAL V5 0 UC 24HR4SZGA UC 24HR4SZGA UC 48HR6SPH...

Page 13: ...R CONDITIONER TECHNICAL SERVICE MANUAL V5 0 10 Ceiling Floor Type Model AUV 18HR4SUA AUV 18HR4SUA1 AUV 24HR4SZA AUV 24HR4SZA1 AUV 36HR6SAB AUV 36HR6SAB1 Indoor Outdoor Model AUV 48HR6SEC1 AUV 48HR6SPC...

Page 14: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 11 DISPLAY PANEL Cassette Type 18k 24K 36K 48K 60K...

Page 15: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 12 Ceiling Floor type...

Page 16: ...o ce can be install ure 24K 36K 50 optional insta nvironment F ect the enviro d OFF be set to auto n design ena allation Requ et type is usu nstalled with SERVICE MANU oner led inside the 0Pa 80Pa 48...

Page 17: ...er 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...

Page 18: ...L S 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 SERVICE MANU ner nside the ceil Frie...

Page 19: ...nt 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...

Page 20: ...R CONDITIONER TECHNICAL SERVICE MANUAL V5 0 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 th...

Page 21: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 6 1 2 Product Lineup Type Model 18 24 36 48 60 Duct Type AUD Cassette Type AUC Ceiling Floor type AUV...

Page 22: ...ication S Refrigerant R410A F Refrigerant R22 4 220V 240V 50HZ 1P 6 380V 415V 50HZ 3P X Wire Remote Controller R Wireless Remote Controller Cool Capacity 18x10 Btu h Air Conditioner Unit K Outdoor Uni...

Page 23: ...odel door tdoor odel door tdoor R RA AL L R CONDITIONER ct Picture e AUD 18HX AUD 18HX AUD 48HX R TECHNICAL S e X4SUNL 4SUNL1 6SEHH1 SERVICE MANU AU AU AU AU AU UAL V5 0 UD 24HX4SZLH UD 24HX4SZLH UD...

Page 24: ...T odel door tdoor odel door tdoor R RA AL L R CONDITIONER ype AUC 18HR AUC 18HR AUC 48HR R TECHNICAL S R4SUAA R4SUAA1 R6SEHA1 SERVICE MANU AU AU AU AU AU UAL V5 0 UC 24HR4SZGA UC 24HR4SZGA UC 48HR6SPH...

Page 25: ...R CONDITIONER TECHNICAL SERVICE MANUAL V5 0 10 Ceiling Floor Type Model AUV 18HR4SUA AUV 18HR4SUA1 AUV 24HR4SZA AUV 24HR4SZA1 AUV 36HR6SAB AUV 36HR6SAB1 Indoor Outdoor Model AUV 48HR6SEC1 AUV 48HR6SPC...

Page 26: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 11 DISPLAY PANEL Cassette Type 18k 24K 36K 48K 60K...

Page 27: ...1 1 G GE EN NE ER RA AL L ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 12 Ceiling Floor type...

Page 28: ...20 80 120 Power Supply Volt Phase Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz Rated Current A Cooling 7 1 11 5 6 5 8 8 10 0 Heating 7 3 11 0 6 1 8 6 10...

Page 29: ...HxD mm Indoor Unit 1070X236X580 1170X340X870 1550 410 940 1550 410 940 1550 410 940 Gross Weight Kg Indoor Unit 24 37 62 62 62 Loading Capacity 76 160 180 36 80 94 23 50 56 19 40 42 19 40 42 20 40 40...

Page 30: ...0 240V 1P 50 Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz 220 240V 1P 50 Hz Rated Current A Cooling 7 1 11 5 6 5 8 8 10 0 Heating 7 3 11 0 6 1 8 6 10 3 Noise Level dB A Indoor Unit High Low 43 38 49 43 50 4...

Page 31: ...0 1550 410 940 1550 410 940 1550 410 940 Gross Weight Kg Indoor Unit 24 37 62 62 62 Loading Capacity 76 160 180 36 80 94 23 50 56 20 42 54 19 40 42 20 40 40 HC Test conditions Cooling Indoor DB27 WB19...

Page 32: ...Heating w w 3 55 3 61 3 41 3 05 3 01 Energy Class B A B D D ESP Pa Power Supply Volt Phase Hz 220 240V 1P 50 Hz 220 240V 1P 5 0Hz 220 240V 1P 5 0Hz 220 240V 1P 5 0Hz 220 240V 1P 50 Hz Rated Current A...

Page 33: ...ight Kg Panel 2 4 6 6 6 6 Indoor Unit 20 28 30 33 33 Packing Dimensions WxHxD mm Panel 730x130x730 990x115x1010 990x115x1010 1010x115x990 1010x115x990 Indoor Unit 770x310x750 930x290x930 930x290x930 9...

Page 34: ...w 3 55 3 61 3 41 3 05 3 01 Energy Class B A B D D ESP Pa Power Supply Volt Phase Hz 220 240V 1P 5 0Hz 220 240V 1P 50Hz 220 240V 1P 50Hz 220 240V 1P 50Hz 220 240V 1P 5 0Hz Rated Current A Cooling 7 1...

Page 35: ...ght Kg Panel 2 4 6 6 6 6 Indoor Unit 20 28 30 33 33 Packing Dimension s WxHxD mm Panel 730x130x730 990x115x1010 990x115x1010 1010x115x990 1010x115x990 Indoor Unit 770x310x750 930x290x930 930x290x930 9...

Page 36: ...olt Phase Hz 220 240V 1P 5 0Hz 220 240V 1P 50Hz 220 240V 1P 50Hz 220 240V 1P 5 0Hz 220 240V 1P 50Hz Rated Current A Cooling 7 1 11 2 6 7 8 8 10 0 Heating 7 0 11 0 6 5 8 6 10 3 Noise Level dB A Indoor...

Page 37: ...xD mm Indoor Unit 1100x820x350 1100x820x350 1400x820x350 1690x820x350 1690x820x350 Gross Weight Kg Indoor Unit 33 34 44 54 54 Loading Capacity 55 116 122 45 99 105 33 67 74 22 47 50 22 47 50 20 40 40...

Page 38: ...1P 5 0Hz 220 240V 1P 5 0Hz 220 240V 1P 5 0Hz Rated Current A Cooling 7 1 11 2 6 7 8 8 10 0 Heating 7 0 11 0 6 5 8 6 10 3 Noise Level dB A Indoor Unit High Low 41 34 52 45 53 49 53 49 53 49 Piping Diam...

Page 39: ...0x820x350 1690x820x350 1690x820x350 Gross Weight Kg Indoor Unit 33 34 44 54 54 Loading Capacity 55 116 122 45 99 105 33 67 74 24 50 58 22 47 50 20 40 40 HC Test conditions Cooling Indoor DB27 WB19 Out...

Page 40: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 25 3 1 INDOOR UNIT Duct Type 18K...

Page 41: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 26 24K 36K 48K 60K...

Page 42: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 27 Cassette Type 18k...

Page 43: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 28...

Page 44: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 29 24K 36K 48K 60K...

Page 45: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 30...

Page 46: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 31 Ceiling Floor Type...

Page 47: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 32 3 2 OUTDOOR 18K...

Page 48: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 33 24K...

Page 49: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 34 36K...

Page 50: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 35 48K Low Ambient Temperature Type...

Page 51: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 36 60K 48K Ordinary Type...

Page 52: ...s 18K 24K Indoor heat exchanger Check Valve Indoor Outdoor Stop Valve Coil temperature sensor Ambient temperature sensor Stop Valve Discharge temperature sensor 4 Way Valve Ambient temperature sensor...

Page 53: ...eck Valve Indoor Outdoor Stop Valve Coil temperature sensor Ambient temperature sensor Stop Valve Discharge temperature sensor 4 Way Valve Ambient temperature sensor Coil temperature sensor Outdoor he...

Page 54: ...tdoor Stop Valve Coil temperature sensor Ambient temperature sensor Stop Valve Discharge temperature sensor 4 Way Valve Ambient temperature sensor Coil temperature sensor Outdoor heat exchanger Compre...

Page 55: ...precharged Total refrigerant pipe length 0m 5m Exceed 5m AUW 18H4SU 1200g 0g Xg 15g m Total pipe length m 5 AUW 24H4SZ 1650g 0g Xg 35g m Total pipe length m 5 AUW 36H6SA 2300g 0g AUW 48H6SP 3100g 0g...

Page 56: ...4 4 D DI IA AG GR RA AM M D DA AT TA A UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 41 4 3ELECTRIC Diagrams 18K 24K 36K 48K 60K...

Page 57: ...s If not do not operate the system until the electrical leakage is found and repaired B Check to ensure that the stop valves of the outdoor unit are fully opened and then start the system Pay attentio...

Page 58: ...0 43 cord code designation H05RN F 3 Use a shielded cable for the transmitting circuit and connect it to ground 4 In the case that power cables are connected in series add each unit maximum current a...

Page 59: ...AL SERVICE MANUAL V5 0 44 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 60: ...CAL SERVICE MANUAL V5 0 45 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 10...

Page 61: ...DITIONER TECHNICAL SERVICE MANUAL V5 0 46 36K 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 1400 1...

Page 62: ...ITIONER TECHNICAL SERVICE MANUAL V5 0 47 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 1900...

Page 63: ...ITIONER TECHNICAL SERVICE MANUAL V5 0 48 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 1900...

Page 64: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 49 5 1 Electrical wiring diagrams INDOOR UNIT DUCT TYPE 18K...

Page 65: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 50 24K...

Page 66: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 51 36K...

Page 67: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 52 48K 60K...

Page 68: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 53 CASSETTE TYPE 18K 24K 36K 48K 60K...

Page 69: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 54 CEILING FLOOR TYPE 18K 24K 36K 48K 60K...

Page 70: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 55 OUTDOOR UNIT Low Ambient Temperature Type 18K...

Page 71: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 56 24K...

Page 72: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 57 36K...

Page 73: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 58 48K...

Page 74: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 59 60K...

Page 75: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 60 Ordinary Temperature Type 18K...

Page 76: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 61 24K Ordinary Temperature Type...

Page 77: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 62 36K...

Page 78: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 63 48K...

Page 79: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 64 60K...

Page 80: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 65 5 2 CONTROL BOARD INDOOR UNIT 18k 24k 36k 48k 60k...

Page 81: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 66 OUTDOOR UNIT 18K no control board 24K...

Page 82: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 67 36K 48K 60K...

Page 83: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 68 5 3 Dip Switch Setting 18K INDOOR 24K 36K 48K 60K OUTDOOR...

Page 84: ...0 0 1 10 10 100 5 Filter Clean Indicate Integer 0 Cancel Filter Clean Indicate function 1 Set Filter Clean Indicate function others invalid 6 Filter Clean Time Set Integer 0 32 more than 32 default i...

Page 85: ...CHNICAL SERVICE MANUAL V5 0 71 Parameter code will not display if the indoor unit is not equipped with this function Please refer to indoor unit manual to check whether this function is effective EXIT...

Page 86: ...ONER TECHNICAL SERVICE MANUAL V5 0 69 5 4 Static Pressure Setting only for duct type CHANGE OF STATIC PRESSURE The static pressure outside the indoor unit can be chosen You can change the static press...

Page 87: ...82 17 428 9819 461 9693 495 5191 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...

Page 88: ...9695 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 44 1034 46 4046 48 6960 4 96 4 71 31 42 2825 44 4711 46 6466 4 92 4 66 32...

Page 89: ...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 90: ...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 91: ...8 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 2 59 2 48 10 23 03 23 61 24 19...

Page 92: ...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 93: ...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 94: ...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 95: ...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 96: ...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 97: ...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 98: ...r will be automatic protection 3 Exhaust temperature protection To prevent deterioration due to high exhaust temperature of compressor the machine will realize the real time detection of the temperatu...

Page 99: ...mpressor from restart frequently in the condition that system pressure has not been completely balanced it can t be restarted within 3 minutes 7 Pressure Protection When the pressure increases to a pr...

Page 100: ...e 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...

Page 101: ...OR 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 DEFROS...

Page 102: ...7 7 T TR RO OU UB BL LE E S SH HO OO OT TI IN NG G ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 87...

Page 103: ...CONTROL 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 a...

Page 104: ...r 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...

Page 105: ...ECHNICAL SERVICE MANUAL V5 0 90 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 Er...

Page 106: ...E S SH HO OO OT TI IN NG G ON OFF UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 91 3 Fault code display Driver Board The lamp of driver board flash shows failure occur Or fault code can be che...

Page 107: ...e 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 componen...

Page 108: ...it 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 contacto...

Page 109: ...oard 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 110: ...n 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...

Page 111: ...ve 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 Overl...

Page 112: ...n 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 faul...

Page 113: ...er 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...

Page 114: ...re 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 expansio...

Page 115: ...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 wa...

Page 116: ...rd 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 abnorm...

Page 117: ...sensor 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 humidi...

Page 118: ...tor 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 Re...

Page 119: ...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 ther...

Page 120: ...r 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...

Page 121: ...f 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...

Page 122: ...Change 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 Cha...

Page 123: ...or 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 er...

Page 124: ...el 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 u...

Page 125: ...t 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 mach...

Page 126: ...iver 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...

Page 127: ...ge 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 C...

Page 128: ...oard 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 P...

Page 129: ...AL SERVICE MANUAL V5 0 114 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 fe...

Page 130: ...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 th...

Page 131: ...ECHNICAL SERVICE MANUAL V5 0 116 8 2 Check parts unit 1 INDOOR FAN MOTOR MOTOR EXAMINE AND REPAIR Circuit diagram DUCT TYPE 18K YSK95 45 4 B M1 138 A1 42 5 A2 22 A3 17 6 A4 14 6 A5 81 4 24K BROWN BLUE...

Page 132: ...UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 117 BLUE BROWN 52 5 BROWN RED 3 78 RAD YELLOW 3 68 YELLOW WHITE 0 89 WHITE BLACK 4 67 ORANGE BROWN 29 5 48K 60K Y7S423C237 BLUE BROWN 17 89 ORANGE...

Page 133: ...EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 118 CASSETTE TYPE 18K M 240 A1 60 A2 33 A3 143 24K M 209 4 A1 36 2 A2 51 5 A3 109 2 36K YDK75 8 2...

Page 134: ...8 8 C CH HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 119 48K 60K YDK80 8 2 M 75 A 97 5...

Page 135: ...N NE EN NT TS S UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 120 Ceiling Floor type MOTOR EXAMINE AND REPAIR Circuit diagram 18K YSK110 22 4 A M 187 A1 37 5 A2 27 8 A3 146 24K YSK110 100 4 A...

Page 136: ...2 69 BLACK BLUE 9 19 BLUE YELLOW 9 09 RED BLACK 36 41 Test in resistance TOOL Multimeter Test the resistance of the main winding The indoor fan motor is fault if the resistance of main winding 0 short...

Page 137: ...5 0 122 Notes 1 Please don t hold motor by lead wires 2 Please don t plug IN OUT the motor connecter while power ON 3 Please don t drop hurl or dump motor against hard material Malfunction may not be...

Page 138: ...Winding resistance at 20 M 231 A 168 24K YDK70 6H 3 BROWN WHITE A M WINDING M The main winding A The auxiliary winding Capacitor Hot protector 130 YELLOW RED BLACK BLUE Winding resistance at 20 M 78...

Page 139: ...NT TS S UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 124 48K YDK29 6I 39 YDK29 6I 41 Winding resistance at 20 M 187 15 A BLUE RED WHITE YELLOW 50 21 106 15 60K YDK65 6 9024 YDK65 6 9061 Wind...

Page 140: ...outdoor fan motor is fault if the resistance of main winding 0 short circuit or open circuit Notes 1 Please don t hold motor by lead wires 2 Please don t plug IN OUT the motor connecter while power O...

Page 141: ...HE EC CK KI IN NG G C CO OM MP PO ON NE EN NT TS S UNITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 126 3 COMPRESSOR COMPRESSOR EXAMINE AND REPAIR 18K PA190M2CS 4KTL 24K PA290G2CS 4MUL1 36K C SB...

Page 142: ...NITARY AIR CONDITIONER TECHNICAL SERVICE MANUAL V5 0 127 48K ATE550SC3Q9RK 60K C SBN453H8D Test in resistance TOOL Multimeter Test the resistance of the winding The compressor is fault if the resistan...

Page 143: ...by connecting electrical wire incorrectly 4 Warning In case AC voltage is impressed to compressor the compressor performance will below because of its rotor magnetic force decreasing 4 INDUCTANCE Fami...

Page 144: ...pacitor terminals as shown in Fig 3 2 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces t...

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