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15.2 Check parts unit

Fan motor

DC motor

12K/

14K

Model: SIC-52FV-F130-3
18K
Model: ZWA228D44B
21K~36K
Model: SIC-71FW-D8121-1
42K
Model: SIC-81FW-F1138-1

2. Compressor

COMPRESSOR EXAMINE AND REPAIR
14K
Model: GSD113RKRA8JV6
18K
Model: KTN150D42UFZ
21K/AMW3-24U4RFA
Model: KTM240D57UMU
AMW3-24U4RAA /27K/36K
Model: KTF235D22UMT
42K
Model:KTF400D64UMT

15. CHECKING COMPONENTS

DC Inverter

Controller

Compressor

Power

Содержание 2AMW-42U4RRA

Страница 1: ...I SPLIT TYPEAIR CONDITIONERS R410A Refrigerant R410A Refrigerant R410A Refrigerant R32 Refrigerant Models OutdoorUnit AMW2 12U4RRA AMW2 14U4RRA AMW2 18U4RXA AMW3 21U4RFA AMW3 24U4RFA AMW3 24U4RAA AMW4 27U4RAA AMW4 36U4RAA AMW 5 42U4RTA ...

Страница 2: ...ese products are equipped with electrical parts If poured it will cause a serious electrical shock Do not open the service cover or access panel for the indoor or outdoor units without turning OFF the main power supply Do not touch or adjust safety devices inside the indoor or outdoor units If these devices are touched or readjusted it may cause a serious accident Refrigerant leakage can cause dif...

Страница 3: ...step or put any material on the product Do not put any foreign material on the unit or inside the unit It is recommended that the room be ventilated every 3 to 4 hours The air conditioner may not work properly under the following circumstances The power transformer provides the same power with the air conditioner The electrical equipment is too close to the power supply of the air conditioner With...

Страница 4: ...2 8 3 Common wiring 37 9 Field setting 39 9 1 Outdoor unit DIP switch 39 9 2 Running parameter query 41 10 Piping work and refrigerant charge 44 10 1 MAX length allowed 44 10 2 Oil trap 44 10 3 Air tight test 45 10 4 Additional refrigerant charge 45 11 Installation tools and installation flow chart 46 11 1 Necessary tools and instrument list for installation 46 11 2 Installation flow chart 47 12 C...

Страница 5: ...ntrol of compressor rotation speed saving roughly 50 more energy than traditional air conditioners Moreover it guarantees and fan motor greatly reduce the loss owed to the typical owing dispersion of AC motors and more efficiently reaches the set temperature Electronic Expansion Valve Inside the outdoor unit is the electronic expansion valve which regulates and optimizes the refrigerant quantity t...

Страница 6: ... installation flexibility The ample maximum piping length of 60 m permits more freedom in the placement of air conditioner units and enables you to optimise interior space Variety Indoor Outdoor Unit Type The new line up expands the range of layout options both indoors and outdoors More methods more conveniently Option Remote Controller A variety of convenient controller systems permit individual ...

Страница 7: ...M W 2 14 U 4 R R A Refrigerant type S R410A F R22 Air Conditioner Multi split Outdoor Unit Code Version 3 Cooling Capacity 14x10 Btu h Quantity of indoor units Type of Product D Duct Cassette V Ceiling Floor F Floor standing W Outdoor Unit Type of Mode U DC Invert HP H Fixed speed HP C H Fixed speed CO Power Supply 2 220 230V 60Hz 4 220 240V 50Hz 6 380 415V 50Hz 3 ...

Страница 8: ...Working Voltage 176V 253V Voltage Imbalance Within a 3 deviation from each voltage at the main terminal of outdoor unit Starting Voltage Higher than 85 of the Rated Voltage Operating temperature range This air conditioner is designed for the following outdoor operating temperatures Type Mode Outdoor operating temperature maximum minimum Multi Split Air Conditioner Heat pump type Cooling Operation ...

Страница 9: ...1 GENERAL 1 6 Product appearance Outdoor Unit Type Capacity Btu h View Dual 12K 14K 18K Trio 21K AMW3 24U4RFA AMW3 24U4RAA Quattro 27K 36K 5 ...

Страница 10: ...1 GENERAL Type Capacity Btu h View 1 to 5 indoor units 42K 6 ...

Страница 11: ... 34130 30720 7510 40950 37540 7510 40950 46060 22860 58600 Air flow m3 h 1850 1850 2300 3150 3150 4000 4000 4000 5000 EER W W 4 14 4 10 3 77 4 28 3 85 3 89 3 56 3 23 3 46 COP W W 4 53 4 5 4 20 4 04 3 9 3 81 4 00 3 93 3 56 SEER 6 63 6 61 7 21 6 9 6 8 6 11 7 01 6 50 6 50 SCOP 4 12 4 1 4 1 4 01 4 01 4 01 4 05 4 01 3 72 EEL Rank Cooling A A A A A A A A A Heating A A A A A A A A A Noise Level sound pow...

Страница 12: ...RRA AMW2 14U4RRA AMW2 18U4RXA AMW3 21U4RFA AMW3 24U4RFA AMW3 24U4RAA AMW4 27U4RAA AMW4 36U4RAA AMW5 42U4RTA Anti electric shock Class I Class I Class I Class I Class I Class I Class I Class I Class I Degrees of protection IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 Dimension Weight Net Dimension WxHxD mm 730 540 260 730 540 260 810 280 580 860 670 310 860 670 310 950 840 340 950 840 340 950 840 3...

Страница 13: ...S AND DIMENSIONS 3 Outlines and dimensions 12K 14K Unit mm Air inlet Air outlet 4 11 17 Hole 50 290 30 Drain pipe 260 290 317 125 480 730 83 278 540 260 Electric box 75 130 102 160 131 189 Liquid pipe Gas pipe 9 ...

Страница 14: ...3 OUTLINES AND DIMENSIONS 18K Unit mm 150 510 810 83 Air inlet 50 314 Drain pipe 37 280 310 338 Air outlet 4 11 17 Hole 297 584 87 285 Electric box 101 159 127 186 Liquid pipe Gas pipe 10 ...

Страница 15: ...3 OUTLINES AND DIMENSIONS 21K AMW3 24U4RFA Unit mm 11 ...

Страница 16: ...3 OUTLINES AND DIMENSIONS AMW3 24U4RAA Unit mm 414 380 12 ...

Страница 17: ...3 OUTLINES AND DIMENSIONS 27K Unit mm 414 380 13 ...

Страница 18: ...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 Unit mm 42K 14 ...

Страница 19: ...ditions as the nominal heating and cooling capacities 3 The compressor is started by an inverter resulting in extremely low starting current Power supply Applicable voltage ELB Outdoor unit Voltage V PH Frequency Hz Umin V Umax V Nominal Current A Nominal Sensitive Current mA 12K 14K 18K 220 240 1 50 176 253 25 30 21K 24K 27K 36K 220 240 1 50 176 253 32 30 42K 220 240 1 50 176 253 63 30 15 ...

Страница 20: ... 2747 27 19 4346 4305 4264 4182 4100 3690 2993 30 22 4305 4510 4469 4510 4592 4100 3280 Indoor temperature Outdoor temperature DB DB 10 5 0 10 15 20 16 3150 3510 3960 4050 4050 4095 4140 20 3240 3645 4050 4410 4635 4950 4860 24 3375 4050 4500 4950 5175 5535 4410 DB Dry Bulb Temperature WB Wet Bulb Temperature 14K COOLING CAPACITY W DB Dry Bulb Temperature WB Wet Bulb Temperature HEATING CAPACITY W...

Страница 21: ...lb Temperature WB Wet Bulb Temperature COOLING CAPACITY W Indoor temperature Outdoor temperature DB DB WB 15 20 25 30 35 40 45 22 16 5904 6120 6192 6408 6480 5760 4824 27 19 7632 7560 7488 7344 7200 6480 5256 30 22 7560 7920 7848 7920 8064 7200 5760 COOLING CAPACITY W Indoor temperature Outdoor temperature DB DB WB 15 20 25 30 35 40 45 22 16 4264 4420 4472 4628 4680 4160 3484 27 19 5512 5460 5408 ...

Страница 22: ...6400 Indoor temperature Outdoor temperature DB DB 10 5 0 10 15 20 16 6300 7020 7920 8100 8100 8190 8280 20 6480 7290 8100 8820 9270 9900 9720 24 6750 8100 9000 9900 10350 11070 8820 DB Dry Bulb Temperature WB Wet Bulb Temperature HEATING CAPACITY W Indoor temperature Outdoor temperature DB DB 10 5 0 10 15 20 16 5544 6178 6970 7128 7128 7207 7286 20 5702 6415 7128 7762 8158 8712 8554 24 5940 7128 7...

Страница 23: ...0 11880 12150 12150 12285 12420 20 9720 10935 12150 13230 13905 14850 14580 24 10125 12150 13500 14850 15525 16605 13230 HEATING CAPACITY W DB Dry Bulb Temperature WB Wet Bulb Temperature COOLING CAPACITY kW DB Dry Bulb Temperature WB Wet Bulb Temperature Indoor temperature Outdoor temperature DB DB WB 15 20 25 30 35 40 45 22 16 8200 8500 8600 8900 9000 8000 6700 27 19 10600 10500 10400 10200 1000...

Страница 24: ... EL Equivalent one way piping length between indoor unit and outdoor unit m Gas Diameter mm inch 9 52 3 8 12 7 1 2 15 88 5 8 19 05 3 4 90 Elbow 0 15 0 2 0 25 0 35 Cooling 5 2 Piping length correction factor Heating Model 10 15 20 25 30 40 45 50 60 70 80 12K 14K 18K 1 00 0 96 0 92 0 88 0 85 21K 24K 1 00 1 00 0 98 0 96 0 94 0 92 0 90 27K 36K 1 00 1 00 1 00 0 98 0 95 0 93 0 90 0 88 0 85 42K 1 00 1 00...

Страница 25: ...t difference between indoor unit and outdoor unit is 0m 2 Be sure to minimize length of connection pipes to optimize performance If the outdoor unit is installed higher or lower than the indoor unit it is necessary to apply height correction factor additionally to length correction factor to calculate cooling heating If outdoor unit is higher correction should be applied to cooling capacity if out...

Страница 26: ...e is correcte e d heating c c factors a accordin ceding par n n period In c considerati apacity D Defrost Corr g g to defro a agraph excl o on of the fro d by the equ uation below e ection facto udes the co r r x unit capa sting ope eration s st or the def f ndition of th rosting ope city e frost or th r ration the h e eating 22 ...

Страница 27: ... 0m ahead of the unit 0 92m high from the bottom of the unit 1 0m high from the ground Model AMW3 24U4RAA Test condition 1 0m ahead of the unit 0 92m high from the bottom of the unit 1 0m high from the ground 6 Sound pressure data Model AMW3 24U4RFA AMW3 21U4RFA Test condition 1 0m ahead of the unit 0 83m high from the bottom of the unit 1m high from the ground 23 ...

Страница 28: ... 1 0m high from the ground Model 42K Test condition 1 0m ahead of the unit 1 0m high from the ground NC 15 NC 20 NC 25 NC 30 NC 35 NC 40 NC 45 NC 50 NC 55 NC 60 NC 65 NC 70 10 20 30 40 50 60 70 80 90 63 125 250 500 1k 2k 4k 8k Total octave band sound level dB total sound level C Octave band center frequency Hz 24 ...

Страница 29: ...7 REFRIGERANT CYCLE 7 Refrigerant cycle 12K 14K 18K 21K 24K 25 ...

Страница 30: ...an Compressor Gas Temperature Sensor 5 Coil Temperature Sensor Ambient Temperature Sensor Ambient Temperature Coil Temperature HP S S S S S OUTDOOR UNIT INDOOR UNIT Cooling Heating Water Level Switch Coil Temperature Coil Temperature Coil Temperature Ambient Temperature Ambient Temperature Ambient Temperature Water Level Switch Water Level Switch Water Level Switch Liquid Stop Volve Muffler LP Low...

Страница 31: ...between Indoor Outdoor Compressor Overheat Protector Action Cooling Overload Protection Discharge Sensor Fault AC Voltage Abnormal Suction Sensor Fault Defrost Sensor Fault Expansion valve A Liquid Pipe Sensor Fault Expansion valve B Liquid Pipe Sensor Fault 2 Expansion valve A Gas Pipe Sensor Fault Expansion valve B Gas Pipe Sensor Fault IPM Fault IPM Communication Fault Electric wiring diagram 1...

Страница 32: ...8 WIRING DIAGRAM Electric wiring diagram 1982504 D 21K AMW3 24U4RFA 28 ...

Страница 33: ...8 WIRING DIAGRAM AMW3 24U4RAA Electric wiring diagram 1957327 B 29 ...

Страница 34: ...8 WIRING DIAGRAM 27K 36K 30 ...

Страница 35: ...1 1 2 2 3 3 8 7 7 8 6 5 4 5 6 4 1 1 2 2 3 3 8 7 7 8 VA 1 1 1 2 2 2 1 1 1 2 2 2 1 1 1 2 2 2 1 1 1 2 2 2 2 2 1 1 5 4 3 3 4 5 6 6 2 2 1 1 5 4 3 3 4 5 6 6 2 2 1 1 5 4 3 3 4 5 6 6 1 1 1 2 2 2 1 1 1 2 2 2 5 4 3 2 1 11 10 9 8 15 14 13 12 1 2 1 2 1 2 1 2 2 1 2 1 4 3 4 3 FM 6 6 2 2 1 1 5 4 3 3 4 5 6 6 4 SI 2 N 1 L 1 2 3 4 1 2 3 4 7 6 8 WIRING DIAGRAM 42K 31 ...

Страница 36: ...or L2 Compressor U Compressor W Compressor V AC NIN AC LIN SI A SI B SI N compressor overheat switch Electronic expansion valve a Electronic expansion valve B DC fan motor Discharge sensor liquidA liquidB GasA sensor GasB sensor coil suction air sensor 32 Checker Computer ...

Страница 37: ...ctronic expansion valve A Pressure switch Discharge sensor Outdoor suction coil sensor LiquidC B A sensor Gas C B A sensor Gas D sensor LiquidD sensor Defrost sensor Overheat switch To uint D To uint C To uint B To uint A Main control board IPM Module CPU code Communication with Upper System 12V 5V Power IGBT Diodes Rectifier Bridge Drive Board code AC Power input EE MCU Drive board 33 Checker Com...

Страница 38: ... way valve Sensor signal from sensor board Compressor W Compressor V Compressor U Reactor L2 Reactor L1 Main EE data socket Driver EE data socket Communication signal from maintenance board Computer Checker 21K AMW3 24U4RFA Main control board Sensor signal to main board Discharge sensor Defrost sensor Coil sensor Suction sensor Outdoor sensor Gas B Liquid B Gas A Liquid A sensor Liquid C Gas C Liq...

Страница 39: ...8 WIRING DIAGRAM Maintenance board Select switch signal to mainboard Communication signal to main board 35 ...

Страница 40: ...pansion valve E Electronic expansion valve C Electronic expansion valve A Electronic expansion valve D Electronic expansion valve B LiqC GasC LiqD GasD sensor Discharge defrost coil suction ambient sensor LiqE GasE sensor LiqA GasA LiqB GasB sensor DC FAN Compressor V Compressor U Compressor W LIN NIN Reactor L1 Reactor L2 IPM SI 8 WIRING DIAGRAM 42K Main control board Drive board 36 Checker Compu...

Страница 41: ... SI 1 L 1 L 1 L 1 L 2 N 2 N 2 N 2 N Power connecting cord Power connecting cord Power connecting cord Power connecting cord Power connecting cord N L Indoor unit C Terminal C Terminal 4 SI 4 SI 1 L 1 L 2 N 2 N Indoor unit D Indoor unit E Terminal D Terminal E Terminal Terminal 4 SI 4 SI 4 SI 4 SI 1 L 1 L 1 L 1 L 2 N 2 N 2 N 2 N NOTES 1 For 12K 14K 18K models there is no INDOOR UN C D and E 2 For 2...

Страница 42: ...he above table are selected at the maximum current of the unit according to the European Standard EN60335 1 4 When transmitting cable length is more than 15 meters a larger wire size should be selected 5 Install main switch and ELB for each system separately Select the high response type ELB that is acted within 0 1second Recommended capacity to see outdoor machine switch capacity 6 In the case th...

Страница 43: ...erant collection mode When the power is ON the dial changed from OFF to ON enters into refrigerant collection mode During refrigerant recovery mode system low pressure protect will not occurs and compressor will stops after 5 minutes and will turn to normal state when power on again Manual defrost function By default setting is OFF By OFF normal mode ON defrost mode When the dial changed from OFF ...

Страница 44: ...n it is pressed 2 INCREASE button Each time it is pressed the number rises by 1 3 DECREASE button Each time it is pressed the number lowers by 1 Hold down SW1 and SW2 simultaneously the number will rise and the parameter will be displayed when released Hold down SW1 and SW3 simultaneously the number will decrease and the parameter will be displayed when released 7 segment display Digital Display S...

Страница 45: ...tdoor ambient temperature 42 Suction temperature 43 Outdoor coil temperature 44 Indoor Unit A liquid pipe temperature 45 Indoor Unit B liquid pipe temperature 46 Indoor Unit C liquid pipe temperature 47 Indoor Unit D liquid pipe temperature 48 Indoor Unit A gas pipe temperature 49 Indoor Unit B gas pipe temperature 50 Indoor Unit C gas pipe temperature 51 Indoor Unit D gas pipe temperature 52 Defr...

Страница 46: ... The right is therefore reserved to EE changing without notice Parameter Code Descriptions Dual Trio Quattro 1 by 5 P 0 Fault codes P 1 Compressor actual frequency P 2 Compressor driving frequency P 4 Compressor target frequency P 5 Compressor exhaust temperature P 6 Outdoor suction Temperature P 7 Outdoor ambient temperature P 8 Outdoor coil temperature P 9 Outdoor defrosting temperature P 10 IPM...

Страница 47: ... codes C 2 Unit C valve actual opening C 4 Unit C liquid pipe temperature C 5 Unit C gas pipe temperature C 6 Unit C coil temperature C 7 Unit C ambient temperature C 8 Unit C set temperature C 9 Unit C capacity C 10 Unit C set fan speed C 11 Unit C actual suction overheating cooling D 1 Unit D fault codes D 2 Unit D valve actual opening D 4 Unit D liquid pipe temperature D 5 Unit D gas pipe tempe...

Страница 48: ... the refrigerant flow direction to bring the oil back to compressor the slope is about 1 200 to1 250 3 In order to ensure cooling h ting performance better the refrigerant piping should be as short and straight as possible Additional refrigerant charge The unit has been filled with refrigerant but if L total pipe length exceeds 15m 12K 14K 18K 21K 24K 20m 27K 36K 25m 42K additional charge with ref...

Страница 49: ...rigerant precharge quantity should be determined and charged into the system according to the following procedure Record the additional refrigerant quantity in order to facilitate maintenance and servicing activities Refrigerant charge before shipment W0 kg W0 is the outdoor unit refrigerant charge before shipment Xg is additional refrigerant outdoor unit needed to charge according to piping lengt...

Страница 50: ...ng tube Expanding Tubes Torque Wrench or φ1 2 φ5 8 spanner size is up 2mm Connection of Flare Nut Fo φ1 4 φ3 8 φ3 4 spanner size is the same Brazing Tool Perform correct brazing work Brazing for Tubes Nitrogen Gas Strict Control against Contamin Blow nitrogen during brazing Prevention from Oxidation during Brazing Lubrication Oil for Flare Surface Use a synthetic oil which is equivalent to the oil...

Страница 51: ...on of indoor unit and outdoor unit Indoor unit installation Electrical wiring Drain piping installation Duct installation Refrigerant piping installation Heat insultation Outdoor unit installation Vacuum pumping and leakage detection Additional refrigerant charge Test run Note this flow is only for reference detailed see installation manual section 47 ...

Страница 52: ...door coil temperature grows higher the compressor will be prohibited from increasing the frequency If the temperature continues to rise the compressor will decrease the frequency If the outdoor fan coil temperature is too high then the compressor will stop working immediately The compressor will reboot after the outdoor coil temperature reduces 4 Discharge Temperature Protection To prevent working...

Страница 53: ...our way valve of the outdoor machine shuts down when cooling but starts when heating The operation of heating defrosting refers to defrosting operation and when the heating remote shutdown the four way valve disconnects in 50s when the compressor stops working 8 Start up Protection To prevent compressor from restart frequently in the condition that system pressure has not been completely balanced ...

Страница 54: ...09 6286 332 3441 355 3104 6 83 6 46 10 293 5903 314 9620 336 5448 6 79 6 41 9 278 4719 298 5822 318 3744 6 74 6 22 8 264 2156 283 1464 302 2294 6 69 6 31 7 250 7678 268 5936 286 5448 6 64 6 26 6 238 0783 254 8686 271 7603 6 59 6 22 5 226 1003 241 9200 257 8193 6 54 6 17 4 214 7903 229 6997 244 6593 6 49 6 11 3 204 1073 218 1630 232 2612 6 44 6 07 2 194 0135 207 2681 220 5495 6 39 6 02 1 184 4732 1...

Страница 55: ... 1342 28 3306 4 44 4 22 44 24 9277 26 0755 27 2150 4 40 4 19 45 23 9697 25 0632 26 1488 4 36 4 15 46 23 0530 24 0950 25 1293 4 32 4 12 47 22 1757 23 1688 24 1545 4 29 4 08 48 21 3360 22 2826 23 2221 4 25 4 05 49 20 5321 21 4345 22 3301 4 21 4 01 50 19 7623 20 6226 21 4766 4 17 3 98 51 19 0261 19 8468 20 6612 4 14 3 94 52 18 3211 19 1040 19 8808 4 10 3 91 53 17 6458 18 3926 19 1338 4 06 3 87 54 16 ...

Страница 56: ...2 53 2 47 100 3 6758 3 7700 3 8643 2 50 2 44 101 3 5661 3 6585 3 7512 2 53 2 47 102 3 4601 3 5509 3 6419 2 56 2 50 103 3 3577 3 4468 3 5362 2 59 2 53 104 3 2588 3 3463 3 4341 2 61 2 56 105 3 1632 3 2491 3 3353 2 64 2 58 106 3 0708 3 1551 3 2398 2 67 2 61 107 2 9816 3 0643 3 1475 2 70 2 64 108 2 8953 2 9765 3 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...

Страница 57: ... 46 2 40 9 21 99 22 53 23 06 2 40 2 30 8 21 01 21 51 22 00 2 32 2 23 7 20 08 20 54 20 99 2 24 2 14 6 19 19 19 62 20 04 2 19 2 10 5 18 35 18 74 19 14 2 08 2 09 4 17 55 17 92 18 29 2 06 2 02 3 16 78 17 13 17 48 2 04 2 00 2 16 06 16 38 16 71 1 95 1 97 1 15 36 15 67 15 98 1 98 1 94 0 14 70 15 00 15 29 2 00 1 90 1 14 08 14 36 14 64 1 95 1 91 2 13 48 13 75 14 02 1 96 1 93 3 12 91 13 17 13 43 1 97 1 94 4...

Страница 58: ...47 2 389 2 525 2 669 5 39 5 40 48 2 309 2 443 2 583 5 49 5 42 49 2 232 2 363 2 500 5 54 5 48 50 2 158 2 286 2 421 5 60 5 58 51 2 087 2 212 2 344 5 65 5 63 52 2 018 2 140 2 269 5 70 5 69 53 1 952 2 072 2 198 5 79 5 73 54 1 888 2 005 2 129 5 84 5 82 55 1 827 1 941 2 062 5 87 5 87 56 1 767 1 880 1 998 6 01 5 91 57 1 710 1 820 1 936 6 04 5 99 58 1 655 1 763 1 876 6 13 6 02 59 1 602 1 707 1 818 6 15 6 ...

Страница 59: ... 6179 8 21 8 16 97 0 5064 0 5519 0 6014 8 24 8 23 98 0 4923 0 5369 0 5853 8 31 8 27 99 0 4787 0 5224 0 5698 8 37 8 32 100 0 4655 0 5083 0 5547 8 42 8 36 101 0 4528 0 4946 0 5401 8 45 8 42 102 0 4404 0 4814 0 5259 8 52 8 46 103 0 4284 0 4685 0 5121 8 56 8 51 104 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 10...

Страница 60: ...let and outlet has been blocked Remove block obstacles Poor cooling heating 1 2 3 The outdoor heat exchanger is dirty such as condenser There are heating devices indoors The air tightness is not enough People come in and out too frequently 4 Block of outdoor heat exchanger 5 Improper setting of temperature 1 Clean the heat exchanger of the outdoor unit such as condenser 2 Remove heating devices 3 ...

Страница 61: ...y fault code ten digit number LED3 display fault code single digit number Drive failure Lamp LED4 display fault code ten digit number LED7 display fault code single digit number Failures display with 5s interval It means LED will off 5s to report next failure code System protect codes display is the same with main control and LED lamps will off when There is no failure protect or preheating For ex...

Страница 62: ...in control failure indicator V15 Ten digit number V16 Single digit number Main Control Board Main control failure Maintenance Board a Check by 7 segment display on maintenance board b Check by lamp on main control board Lamp V15 display fault code ten digit number V16 display fault code single digit number 58 ...

Страница 63: ...the failure code Drive board Drive failure lamp Drive failure Check by lamp on main control board Lamp V17 display fault code ten digit number V18 display fault code single digit number The failure lamp flicking times shows the failure code 3 AMW3 24U4RAA 27K 36K 42K Main control failure Fault code will display on 7 segment display on outdoor control board Outdoor Control Board 7 segment display 5...

Страница 64: ...rol board components 3 Reassemble the EE components 5 Cooling freezing protection the indoor coil temperature is too low or heating overload indoor coil temperature is too high 1 2 The indoor unit can not blow air normally The room temperature is too low in cooling mode or the room temperature is too high in heating 3 The filter is dirty 4 The duct resistance is too high to result in low air flow ...

Страница 65: ...turn off for low pressure protection 1 The wiring of the low pressure switch connect loose 2 The low pressure switch is failure 3 The refrigerant is not enough 4 The expansion valve failure in heating mode 5 The outdoor control board is abnormal 1 Reconnect the wiring of the low pressure switch 2 Replace the low pressure switch 3 Check the welding point to confirm whether the unit is leakage and t...

Страница 66: ...e the outdoor control board Expansion valve A gas pipe sensor fault 1 The wiring of the sensor for the expansion valve A gas pipe is connected loosely 2 The sensor of the expansion valve A gas pipe fails 3 The sampling circuit fails 1 Reconnect the wiring of the sensor for the expansion valve A gas pipe 2 Replace the sensor for the expansion valve A gas pipe 3 Replace the outdoor control board Exp...

Страница 67: ...unit is not enough The refrigerant of the unit is not enough due to that the installation pipe is longer 3 Throttling service fails 4 The outdoor ambient temperature is too high 2 1 Check the welding point to confirm whether the unit has leakage point and then add some refrigerant Add some refrigerant referring to the installation user manual 3 Replace the throttling service such as capillary expa...

Страница 68: ... and air inlet of the outdoor unit Adjust the installation of the outdoor unit referring to the user manual 4 The outdoor heat exchanger is dirty such as condenser Clean the heat exchanger of the outdoor unit such as condenser 5 The speed of the outdoor fan motor is too low Check the outdoor fan motor and fan capacitor 6 The outdoor fan is broken or the outdoor fan is blocked Check the outdoor fan...

Страница 69: ...hange the driver board 14 PFC LOW voltage detected failure 15 AD offset abnormal detected failure Driver board fails Change the driver board 16 Inverter PWM logic set fault 17 Inverter PWM initialization failure 18 PFC_PWM logic set fault 19 PFC_PWM initialization fault 20 Temperature abnormal 21 Shunt resistance unbalance adjustment fault 22 Communication failure 1 Communication wire connection i...

Страница 70: ...ange the driver board 8 DC voltage overload voltage 1 Supply voltage input is too high 2 Driver board fault 1 Check power supply 2 Change the driver board 9 AC voltage imbalance Driver board fails Change the driver board 10 The PFC current detection circuit fault before compressor is ON Bad driver board components Change the driver board 11 AC voltage supply in outrange 1 Power supply is abnormal ...

Страница 71: ...rd 18 Driver board read EE data error 1 EEPROM has no data or data error 2 EEPROM circuit fault 1 Change EEPROM component 2 Change the driver board 19 PFC chip receive data fault Abnormal communication loop Change the drive board 20 PFC soft start is abnormal Abnormal PFC drive loop Change the drive board 21 The compressor drive chip could not receive data from PFC chip Communication loop fault Ch...

Страница 72: ... stop the frequency from increasing Frequency control to keep appropriate temperature of the indoor unit coil 114 To prevent the indoor unit from being frozen or high temperature reduce the frequency Frequency control to keep appropriate temperature of the indoor unit coil 119 When DSH exceeds the target value the valve opening gets wider Control on expansion valve based on DSH 120 When DSH exceed...

Страница 73: ...nstalled in good ventilation Tool Pressure Gauge Technique see feel test SEE Tube defrost FEEL The difference between tube s temperature TEST Test pressure cooling run heating run Lo Hi Pressure gauge Lo Hi Pressure gauge Lo Hi Pressure gauge Lo Hi Pressure gauge Lo Hi Pressure gauge Lo Hi Pressure gauge 15 CHECKING COMPONENTS 69 ...

Страница 74: ... 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 Is the high pressure normal at service part The pressure on the high side The pressure on the low side Recharge refrigerant after air purging with the vacuum pump Is the high pressure normal over again Air remains at the refrigerant system yes The syste...

Страница 75: ...odel SIC 71FW D8121 1 42K Model SIC 81FW F1138 1 2 Compressor COMPRESSOR EXAMINE AND REPAIR 14K Model GSD113RKRA8JV6 18K Model KTN150D42UFZ 21K AMW3 24U4RFA Model KTM240D57UMU AMW3 24U4RAA 27K 36K Model KTF235D22UMT 42K Model KTF400D64UMT 15 CHECKING COMPONENTS DC Inverter Controller Compressor Power 71 ...

Страница 76: ...ioner rapidly after removing the plugs Don t place the comp In air for along time 3 Avoiding compressor running in reverse caused 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 2 1 15 CHECKING COMPONENTS 4 Inductance Familiar error 1 Sound abnormality 2 Insulati...

Страница 77: ...erminals and then place a probe on the capacitor 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 3 The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position 4 The range of deflection and deflection time differ according to the capacity of the ca...

Страница 78: ...ied as voltage free Step Illustration Handling Instruction 1 Remove external casing 1 Remove the top cover handle and valve cover 2 Remove the outer case and right side plate 2 Remove motor 1 Remove the blade nut and then remove the blade 2 Remove the motor from motor supporter 3 Remove compressor 1 Reclaim the refrigerant from the entire system 2 Unsolder the 4 way valve piping assy from compress...

Страница 79: ...case and right side plate 2 Remove motor 1 Remove the blade nut and then remove the blade 2 Remove the motor from motor supporter 3 Remove compressor 1 Reclaim the refrigerant From the entire system 2 Unsolder the 4 way valve piping assy from compressor 3 Remove the compressor mounting bolts 4 Carefully remove the compressor from chassis 4 Assemble unit Assemble the unit in the reverse order of di...

Страница 80: ...Product improvement specifications and appearance in this manual are subject to change without prior notice ...

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Содержание 2AMW-42U4RRA

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