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Airwell 7SP091170, Service Manual

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Airwell 7SP091170 Service Manual Download Page 126

Troubleshooting 

 

124 

Electrical Control System 

   

2.4 Solving steps for typical malfunction 

2.4.1 For the indoor unit 
2.4.1.1 Indoor EEPROM malfunction 

If the EEPROM chip  
is welded on PCB, 
replace the PCB 
directly. Otherwise, 
check whether  the 
EEPROM chip 
plugged in PCB well? 

Yes

No

Yes

Insert the EEPROM well

Replace the indoor PCB.

Shut off the power supply and 

turn it on 1 minute later. Is it 

still displaying the error code?

 

 
 

Summary of Contents for 7SP091170

Page 1: ...SP091172 AWAU YCZ542 H11 7SP091173 AWSI HND009 N11 AWSI HKD009 N11 AWSI CCD009X N11 AWSI XBD009X N11 AWSI HND012 N11 AWSI HKD012 N11 AWSI CBD012 N11 AWSI CCD012 N11 AWSI XAD012 N11 AWSI XBD012 N11 AWS...

Page 2: ...nformation 1 Part 2 Indoor Units 14 Part 3 Outdoor Units 80 Part 4 Installation 98 Part 5 Electrical Control System 104 The specifications designs and information in this book are subject to change wi...

Page 3: ...General Information General Information 1 Part 1 General Information 1 Model Lists 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Outdoor Units 3 3 Product specification 4 4 Matching Table 13...

Page 4: ...AWSI CCD009X N11 9000 220 240V 50Hz 1Ph AWSI CBD012 N11 12000 220 240V 50Hz 1Ph AWSI CCD012 N11 12000 220 240V 50Hz 1Ph AWSI CBD018X N11 18000 220 240V 50Hz 1Ph Duct AWSI DCD012 N11 12000 220 240V 50...

Page 5: ...al Information 3 2 External Appearance 2 1 Indoor Units HKD HND Four way cassette Compact Duct Console 2 2 Outdoor Units AWAU YCZ218 H11 7SP091170 AWAU YCZ327 H11 7SP091171 AWAU YCZ430 H11 7SP091172 A...

Page 6: ...6 OUTDOOR Refrigerant control Capillary EXV Compressor type model Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 750 Air flow H L m3 hr 2500 Sound power level 4 H L dB A 63 Sound p...

Page 7: ...rigerant control Capillary EXV Compressor type model Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 800 Air flow H L m3 hr 3500 Sound power level 4 H L dB A 67 Sound pressure level...

Page 8: ...gerant control Capillary EXV Compressor type model Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 800 Air flow H L m3 hr 3500 Sound power level 4 H L dB A 67 Sound pressure level 5...

Page 9: ...gerant control Capillary EXV Compressor type model Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 950 Air flow H L m3 hr 5500 Sound power level 4 H L dB A 70 Sound pressure level 5...

Page 10: ...mensions LxWxH mm 830x270x355 910x270x355 Packaged weight kg 9 9 9 9 Operation control type Remote control Remote control Model Indoor Unit AWSI HND012 N11 AWSI HND018 N11 Installation Method of Pipe...

Page 11: ...ype Remote control Model Indoor Unit AWSI HKD009 N11 7SP023030 AWSI HKD012 N11 7SP023031 Installation Method of Pipe Flared Flared Characteristics Units Cooling Heating Cooling Heating Capacity 4 kW 2...

Page 12: ...nsions LxWxH mm 1015x265x350 1135x315x395 Packaged weight kg 12 2 15 2 Operation control type Remote control Remote control Model Indoor Unit AWSI DCD012 N11 AWSI DID012 N11 Installation Method of Pip...

Page 13: ...dimensions LxWxH mm 810 305 710 810 305 710 Packaged weight kg 18 20 Operation control type Remote control Wired remote control Model Indoor Unit AWSI XBD012 N11 AWSI XAD018X N11 Installation Method...

Page 14: ...ons LxWxH mm 715x715x123 715x715x123 Frame packaged weight kg 4 5 4 5 Operation control type Remote control Remote control Model Indoor Unit AWSI CCD012 N11 AWSI CBD018X N11 Installation Method of Pip...

Page 15: ...9 24 7 7 7 24 7 12 18 18 7 7 7 7 12 7 7 9 9 18 7 9 9 12 18 7 12 18 7 7 9 18 7 12 18 24 7 7 7 7 18 7 7 9 9 24 7 9 12 12 12 7 12 24 7 7 9 24 9 9 9 9 7 7 7 7 24 7 7 9 12 12 7 9 12 12 18 7 18 18 7 7 12 12...

Page 16: ...Indoor Units 14 Indoor Units Part 2 Indoor Units HKD Type 15 HND Type 28 Light Commercial 41...

Page 17: ...HKD Type Indoor Units 15 HKD Type 1 Function 16 2 Dimensions 17 3 Wiring Diagrams 19 4 Exploded View and Spare Part list 20...

Page 18: ...r Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Ionizer O 1W Standby Louver Position Memory Function Refrigerant Leakage Detect Self diag Function Hydrophilic Aluminum Fin...

Page 19: ...its 17 2 Dimensions W D H For AWSI HKD009 N11 7SP023030 Model W D H AWSI HKD009 N11 7SP023030 715 188 250 AWSI HKD012 N11 7SP023031 800 188 275 AWSI HKD018 N11 7SP023032 940 205 275 AWSI HKD024 N11 7S...

Page 20: ...Dimensions 18 Indoor Units For AWSI HKD012 N11 7SP023031 For AWSI HKD018 N11 7SP023032 For AWSI HKD024 N11 7SP023033...

Page 21: ...Wiring Diagrams Indoor Units 19 3 Wiring Diagrams AWSI HKD009 N11 AWSI HKD012 N11 AWSI HKD018 N11...

Page 22: ...Exploded View and Spare Part list 20 Indoor Units 4 Exploded View and Spare Part list 4 1 Exploded View of indoor unit AWSI HKD009 N11...

Page 23: ...1 12 12122000000350 Bearing sleeve 1 13 12622000000006 Bearing pedestal 1 14 12100102000036 Cross flow window rotor 1 15 12122000005105 Wind Guide Assembly 1 16 12122000004172 Chassis Assembly 1 16 1...

Page 24: ...Exploded View and Spare Part list 22 Indoor Units 4 3 Exploded View of indoor unit AWSI HKD012 N11...

Page 25: ...ing pedestal 1 14 12100102000022 Cross flow Window Rotor 1 15 12122000005123 Wind Guide Assembly 1 16 12122000004342 Chassis Assembly 1 16 1 11002010000143 stepper motor 1 17 12122000000445 Pipe Press...

Page 26: ...Exploded View and Spare Part list 24 Indoor Units 4 5 Exploded View of indoor unit AWSI HKD018 N11...

Page 27: ...12 12122000000350 Bearing sleeve 1 13 12622000000006 Bearing pedestal 1 14 12100102000072 Cross flow window rotor 1 15 12122000006245 Wind Guide 1 16 12122000004388 Chassis Assembly 1 16 1 1100201000...

Page 28: ...Exploded View and Spare Part list 26 Indoor Units 4 7 Exploded view of model AWSI HKD024 N11...

Page 29: ...15822000003687 Evaporator assembly Gas valve assembly 1 13 12122000005516 Motor Bearing Cover 1 14 12122000006772 Fixing board for motor 1 15 11002015000094 Brushless DC Motor 1 16 12122000000350 Bear...

Page 30: ...HND Type 28 Indoor Units HND Type 1 Function 29 2 Dimensions 30 3 Wiring Diagrams 32 4 Exploded View and Spare Part list 33...

Page 31: ...itamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Ionizer O Self Clean O 1W Standby Louver Position Memory Function Refrigerant Leakage Detect Self diag Function Hydrophilic Aluminum Fin Hor...

Page 32: ...door Units 2 Dimensions W D For AWSI HND007 N11 AWSI HND009 N11 Model W D H AWSI HND007 N11 750 198 280 AWSI HND009 N11 750 198 280 AWSI HND012 N11 835 198 280 AWSI HND018 N11 990 218 315 AWSI HND024...

Page 33: ...Dimensions Indoor Units 31 For AWSI HND012 N11 For AWSI HND018 N11 For AWSI HND024 N11...

Page 34: ...Wiring Diagrams 32 Indoor Units 3 Wiring Diagrams AWSI HND007 N11 AWSI HND009 N11 AWSI HND012 N11 AWSI HND018 N11 AWSI HND024 N11...

Page 35: ...Exploded View and Spare Part list Indoor Units 33 4 Exploded View and Spare Part list 4 1 Exploded view of model AWSI HND009 N11...

Page 36: ...50 Bearing sleeve 1 13 12622000000006 Bearing pedestal 1 14 12100102000024 Cross flow window rotor 1 15 12122000005112 Wind Guide Assembly 1 16 12122000A03070 Chassis Assembly 1 16 1 11002010000143 st...

Page 37: ...Exploded View and Spare Part list Indoor Units 35 4 3 Exploded view of model AWSI HND012 N11...

Page 38: ...0000350 Bearing sleeve 1 13 12622000000006 Bearing pedestal 1 14 12100102000074 Cross flow window rotor 1 15 12122000005101 Wind Guide Assembly 1 16 12122000A03026 Chassis Assembly 1 16 1 110020100001...

Page 39: ...Exploded View and Spare Part list Indoor Units 37 4 5 Exploded view of model AWSI HND018 N11...

Page 40: ...12122000005516 Motor Bearing Cover 1 13 12122000006772 Fixing board for motor 1 14 11002015000094 Brushless DC Motor 1 15 12122000000350 Bearing sleeve 1 16 12622000000006 Bearing pedestal 1 17 12100...

Page 41: ...Exploded View and Spare Part list Indoor Units 39 4 7 Exploded view of model AWSI HND024 N11...

Page 42: ...aring Cover 1 13 12122000006772 Fixing board for motor 1 14 11002015000056 Brushless DC Motor 1 15 12122000000350 Bearing sleeve 1 16 12622000000006 Bearing pedestal 1 17 12100102000001 Cross flow win...

Page 43: ...Light Commercial Indoor Units 41 Light Commercial 1 Features 42 2 Dimensions 48 3 Service Space 51 4 Wiring Diagrams 53 5 Exploded View and Spare Part list 58...

Page 44: ...and will not damage the decoration The panel size is 647 50 647mm The hooks are designed in the four corners of the body which can save installation space Electric control box built in design The E bo...

Page 45: ...Features Indoor Units 43 Dimension 75mm Fresh Air...

Page 46: ...the reserved fresh air intake to outdoor Continually inhale the fresh air to improve the quality of the indoor air fulfills air quality more healthy and comfortable Model 12 3 Easy maintenance Clean...

Page 47: ...of an on off controller or a central controller to realize remote on off control function or group control function 5 Built in drain pump Standard Built in drain pump can lift the water to 750mm upmo...

Page 48: ...ith a receiver in the E box Move out the display and fix it in other place even in the distance of 2m The unit will realized remoter control The wired controller and the display board can display the...

Page 49: ...ower wall applications as a floor standing floor model it can be semi or fully recessed without loss of capacity 5 High efficiency filter built in Formaldehyde nemesis filter active carbon and biologi...

Page 50: ...Dimensions 48 Indoor Units 2 Dimensions 2 1 Four way cassette type compact 270...

Page 51: ...5 Duct H G E F A B D C L M Model Outline dimension mm Air outlet opening size Air return opening size Size of outline dimension mounted plug A B C D E F G H I J K L M AWSI DCD012 N11 700 210 635 570 6...

Page 52: ...Dimensions 50 Indoor Units 2 3 Console...

Page 53: ...Units 51 3 Service Space 3 1 Four way cassette compact 3 2 A5 Duct Ensure enough space required for installation and maintenance All the indoor units reserve the hole to joint the fresh air pipe The h...

Page 54: ...Service Space 52 Indoor Units 3 3 Console...

Page 55: ...F OFF OFF 0 15 Default 0 0 F ON OFF 16 31 0 F OFF ON 32 47 0 F ON ON 48 63 SW1 1 SW1 2 Anti Cold Air Setting OFF OFF Fan OFF when ICT 24 Default ON OFF Fan OFF when ICT 15 OFF ON Fan OFF when ICT 8 ON...

Page 56: ...door Units 4 3 AWSI CCD012 N11 4 4 AWSI CBD018X N11 CN13 10 CN8 M INDOOR UNIT MAINBOARD RCW8 Optional 5 Remote Control CN33 ALARM Alarm Output CN15 CN1 CN5 To Central Control POWER CN3 JR6 JR6 H CH Y...

Page 57: ...Wiring Diagrams Indoor Units 55 4 5 AWSI DCD012 N11...

Page 58: ...Wiring Diagrams 56 Indoor Units 4 6 Model AWSI DID012 N11...

Page 59: ...Wiring Diagrams Indoor Units 57 4 7 AWSI XAD012 N11 4 8 Model AWSI XBD012 N11...

Page 60: ...Exploded View and Spare Part list 58 Indoor Units 5 Exploded View and Spare Part list 5 1 Exploded View of indoor unit AWSI CCD009X N11...

Page 61: ...or 1 14 12222500000199 Motor Installing Foundation 1 15 11002015000069 Brushless DC Motor 1 16 12100103000089 Centrifugal Fan 1 17 12122500000425 Air Guide Coil 1 18 17222300000587 E Parts Box assembl...

Page 62: ...Exploded View and Spare Part list 60 Indoor Units 5 3 Exploded View of indoor unit AWSI CBD012 N11 7SP042234...

Page 63: ...I 1 10 201280490485 Hook 1 11 201280490484 Hook III 1 12 201142390001 Pipe fixing board assembly 1 14 201142390003 Ventilation ring 1 15 201100100804 Centrifugal fan 1 16 202400300052 Asynchronous mo...

Page 64: ...Exploded View and Spare Part list 62 Indoor Units 5 5 Exploded View of indoor unit AWSI CBD012 N11 7SP042243...

Page 65: ...lation Hanger 1 12 12122500000330 Sealing board for Pipe Tie in Subassembly 1 13 12222500000197 Joint board of Evaporator 1 14 12222500000199 Motor Installing Foundation 1 15 11002015000069 Brushless...

Page 66: ...Exploded View and Spare Part list 64 Indoor Units 5 7 Exploded View of indoor unit AWSI CCD012 N11...

Page 67: ...otor Installing Foundation 1 15 11002015000069 Brushless DC Motor 1 16 12100103000089 Centrifugal Fan 1 17 12122500000425 Air Guide Coil 1 18 17222500000198 E Parts Box assembly 1 18 1 12222500000165...

Page 68: ...Exploded View and Spare Part list 66 Indoor Units 5 9 Exploded View of indoor unit AWSI CBD018X N11...

Page 69: ...board for Pipe Tie in Subassembly 1 13 12222500000197 Joint board of Evaporator 1 14 12222500000199 Motor Installing Foundation 1 15 11002012000054 Single phase Asynchronous Motor 1 16 12100103000089...

Page 70: ...Exploded View and Spare Part list 68 Indoor Units 5 11 Exploded View of indoor unit AWSI DCD012 N11...

Page 71: ...2 3 201600320001 Copper nut 1 12 4 201670190020 Input pipe assembly 1 12 4 1 201600320000 Copper nut 1 13 201270290034 Evaporator right support board assembly 1 14 202440500004 Pipe temperature sensor...

Page 72: ...Exploded View and Spare Part list 70 Indoor Units 5 13 Exploded view of model AWSI DID012 N11...

Page 73: ...rical Control Box 1 17 3 17400401000112 terminal block 4p 1 17 6 11201007000143 Room Temperature Sensor 1 17 7 17123000000172 Indoor Main Control Board Subassembly Tie in RoHS 1 17 10 17400306000070 R...

Page 74: ...Exploded View and Spare Part list 72 Indoor Units 5 15 Exploded view of model AWSI XBD009X N11...

Page 75: ...ectric installation board 1 9 9 17122700000267 Display board ass y 1 9 10 17122700000047 Indoor Main Control Board Subassembly 1 9 11 12222600000009 Subassembly of Electrical Control Box Boarding I 1...

Page 76: ...Exploded View and Spare Part list 74 Indoor Units 5 17 Exploded View of indoor unit AWSI XAD012 N11...

Page 77: ...1310072 Ambient temperature sensor assembly 1 9 5 202301400072 Wire joint 1 9 7 201244090002 Electronic control box seal plate 1 9 8 201144090008 Installation plate of electric parts 1 9 9 20134409000...

Page 78: ...Exploded View and Spare Part list 76 Indoor Units 5 19 Exploded View of indoor unit AWSI XBD012 N11...

Page 79: ...22600000029 Electric installation board 1 9 9 17122700000267 Display board ass y 1 9 10 17122600000022 Indoor Main Control Board Subassembly Tie in RoHS Indoor Main Control Board Subassembly Sticker R...

Page 80: ...Exploded View and Spare Part list 78 Indoor Units 5 21 Exploded View of indoor unit AWSI XAD018X N11...

Page 81: ...er 1 9 7 12222600000008 Sealing Plate of Electrical Control Box 1 9 8 12122600000029 Electric Installing Plate 1 9 9 17122700000267 Display Panel Subassembly of Indoor Unit 1 9 10 17122700000047 Indoo...

Page 82: ...its 80 Outdoor Units Part 3 Outdoor Units 1 Dimensions 81 2 Service Space 82 3 Refrigeration Cycle Diagram 83 4 Wiring Diagrams 85 5 Operation Limits 88 6 Sound Levels 89 7 Exploded View and Spare Par...

Page 83: ...ns A B D Model Unit mm W D H W1 A B AWAU YCZ218 H11 7SP091170 845 363 702 923 540 350 AWAU YCZ327 H11 7SP091171 946 410 810 1034 673 403 AWAU YCZ430 H11 7SP091172 946 410 810 1034 673 403 AWAU YCZ542...

Page 84: ...Service Space 82 Outdoor Units 2 Service Space More than 60cm More than 30cm More than 60cm More than 200cm Air inlet Air inlet More than 30cm Air outlet Wall or obstacle Maintain channel...

Page 85: ...2B A Evaporator temp sensor outlet T2B B 3 2 AWAU YCZ327 H11 AWAU YCZ430 H11 LIQUID VALVE A GAS VALVE A HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor 4 WAY VALVE COOLING HEATING T2 Evapo...

Page 86: ...r T4 Ambient temp sensor INDOOR OUTDOOR EXV A CAPILLARY A CHECK VALVE CAPILLARY TUBE EXV B CAPILLARY B LIQUID VALVE B GAS VALVE B EXV C CAPILLARY C LIQUID VALVE C GAS VALVE C EXV D CAPILLARY D LIQUID...

Page 87: ...Wiring Diagrams Outdoor Units 85 4 Wiring Diagrams 4 1 AWAU YCZ218 H11 4 2 AWAU YCZ327 H11...

Page 88: ...Wiring Diagrams 86 Outdoor Units 4 3 AWAU YCZ430 H11...

Page 89: ...Wiring Diagrams Outdoor Units 87 AWAU YCZ542 H11 7SP091173...

Page 90: ...above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates...

Page 91: ...evels H 1 0m Outdoor Unit Microphone Note H 0 5 height of outdoor unit Model Noise Power dB A Noise level dB A AWAU YCZ218 H11 7SP091170 63 55 AWAU YCZ327 H11 7SP091171 67 58 AWAU YCZ430 H11 7SP091172...

Page 92: ...Exploded View and Spare Part list 90 Outdoor Units 7 Exploded View and Spare Part list 7 1 Exploded view of model AWAU YCZ218 H11 7SP091170...

Page 93: ...ition board assembly 1 20 17222300001050 Electronic control box assembly 1 20 1 12122300000044 Electric Installing Box Cover 1 20 2 17122300001512 Outdoor main control board assembly 1 20 3 1712230000...

Page 94: ...Exploded View and Spare Part list 92 Outdoor Units 7 3 Exploded view of model AWAU YCZ327 H11 7SP091171...

Page 95: ...ontrol board assembly 1 19 2 17122300001552 Outdoor main control board assembly 1 19 4 12122300000170 Electric Installing Box 1 20 17222300001051 Terminal Block Subassembly of Electrical Control Box 1...

Page 96: ...Exploded View and Spare Part list 94 Outdoor Units 7 5 Exploded View of outdoor unit AWAU YCZ430 H11 7SP091172...

Page 97: ...0170 Electric Installing Box 1 20 17222300001053 Terminal Block Subassembly of Electrical Control Box 1 20 1 17400401000097 Wire joint 1 20 1 17400401000133 Wire holder 2 20 2 12222300000033 Terminal...

Page 98: ...Exploded View and Spare Part list 96 Outdoor Units 7 7 Exploded View of outdoor unit AWAU YCZ542 H11 7SP091173...

Page 99: ...ontrol board assembly 1 19 4 12122200002715 Electric Installing Box Subassembly 1 19 7 17122000025435 Inverter control board assembly 1 19 7 1 11203803000249 Radiator 1 20 17222000A42788 Terminal boar...

Page 100: ...Installation 98 Installation Part 4 Installation 1 Wrench torque sheet for installation 99 2 Connecting the cables 99 3 Pipe length and the elevation 99 4 Installation details 101...

Page 101: ...witch 3 Pipe length and the elevation 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Max length for all rooms m 30 45 60 80 Max length for one IU m 20 25 30 30 Max height difference between IU and OU m 15 15...

Page 102: ...8 Gas 9 52 3 8 18K Liquid 6 35 1 4 Liquid 6 35 1 4 Gas 12 7 1 2 Gas 12 7 1 2 24K Liquid 9 52 3 8 Liquid 9 52 3 8 Gas 15 9 5 8 Gas 15 9 5 8 Outdoor unit union diameter mm inch 1 drive 2 Liquid 6 35 1 4...

Page 103: ...e Gas service port 3 Connect the charge hose of handle hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30...

Page 104: ...re display in the pressure indicator is a little higher than the atmosphere pressure Then remove the charge hose from the Main valve Gas 9 Fully open the main valve Gas and main valve Liquid and secur...

Page 105: ...ghten the service port cap to a torque of 18N m Be sure to check for gas leakage Lo Hi Manifold Valve Handle Lo Handle Hi Charge Hose Main Valve Gas Branch valve Gas Main Valve Liquid Outdoor Unit To...

Page 106: ...Electrical Control System 104 Electrical Control System Part 5 Electrical Control System 1 Electrical Control Function 105 2 Troubleshooting 119...

Page 107: ...door fan speed keeps too low for certain time the unit will stop and the LED will display the failure 1 2 6 Zero crossing detection error protection only for AWSI HKD009 N11 If AC detects time interva...

Page 108: ...er than HEAT_F4 the frequency will not be limited After 10s of the compressor start if the current IHEAT the AC will display the failure for 30 seconds and stop The AC will restart 3 minutes later 1 2...

Page 109: ...s The compressor will run at corresponding frequency according to the gross amendatory capacity demand Frequency COOL_F0 COOL_F1 COOL_F2 COOL_F15 COOL_F16 Amendatory capacity demand 0 1 2 15 16 Meanwh...

Page 110: ...D_ADD DC_FAN_SSLOW_SPD_ADD 1 3 2 3 Indoor fan running rules For Cassette A5 In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto The auto fan 3 5 3 0...

Page 111: ...ll release and the compressor will restart after 3 minutes 1 3 2 5 Evaporator low temperature protection When T2B 0 for 250 seconds the indoor unit has no capacity demand and resume till T2B 10 When T...

Page 112: ...ID_SPD_ADD 1 3 3 3 Indoor fan running rules For HKD HND Console In heating mode indoor fan can be selected as high medium low auto and silent The anti cold wind function has the priority When the comp...

Page 113: ...ority 1 3 3 5 Defrosting mode Condition of defrosting If any one of the following items is satisfied AC will enter the defrosting mode After the compressor starts up and keeps running mark the minimum...

Page 114: ...hosen with remote controller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode according to T T T1 Ts T T1 Ts Running mode...

Page 115: ...the AC current operation mode Suppose AC is off now it will not start up firstly after setting the timer off function And when reaching the setting time the timer LED will be off and the AC running m...

Page 116: ...urn to cooling mode in low speed with 24 setting temperature 1 3 10 5 The slave forced cooling units will not be controlled by other signals 1 3 11 Drain pump control For Cassette Adopt the water leve...

Page 117: ...wireless remote controller 1 3 13 8 Heating optional In heating operation the preset temperature of the air conditioner can be as lower as 8 which keeps the room temperature steady at 8 and prevents h...

Page 118: ...than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital display tube will show 70 If the indoor unit is not connected the digital display tube will show 18...

Page 119: ...it caused by T4 Bit4 Frequency limit caused by T2 Bit3 Frequency limit caused by T3 Bit2 Frequency limit caused by T5 Bit1 Frequency limit caused by current Bit0 Frequency limit caused by voltage 43 A...

Page 120: ...3 1 1 3 1 2 0 b c d e f 2 Capacity area a b c d e f Norm value N 3 2 1 5 1 0 5 0 1 3 12 4 Number of indoor unit Display Number of indoor unit 1 1 2 2 3 3 4 4 5 5 1 3 12 5 Opening degree of electronic...

Page 121: ...air control feature is activated in heating operation OPERATION indication lamp This lamp illuminates when the air conditioner is in operation TIMER indication lamp Lights up during Timer operation Te...

Page 122: ...lternative displays between running frequency and RO each displays 0 5s In low ambient cooling mode the LED displays LC or alternative displays between running frequency and LC each displays 0 5s In f...

Page 123: ...protection P4 5 Inverter compressor drive protection P5 6 Mode conflict P6 7 Low pressure protection O light X off flash For Cassette Duct NO MALFUNCTION RUN Timer DEF Alarm DISPLAY DIGITAL TUBE 1 Op...

Page 124: ...ication malfunction between indoor and outdoor units X X 4 Outdoor fan speed has been out of control X O 5 Indoor EEPROM malfunction X 6 IPM module protection X 7 Open or short circuit of T3 or T4 tem...

Page 125: ...sensor or connector of sensor is defective F3 No C Indoor unit coil outlet temperature sensor or connector of sensor is defective F4 No D Indoor unit coil outlet temperature sensor or connector of sen...

Page 126: ...nit 2 4 1 1 Indoor EEPROM malfunction If the EEPROM chip is welded on PCB replace the PCB directly Otherwise check whether the EEPROM chip plugged in PCB well Yes No Yes Insert the EEPROM well Replace...

Page 127: ...S and N Refer PIC 1 Turn on all indoor unit by remote controller Is all indoor unit display Turn off the all indoor units Is IPM power LED or operating LED lamp On Refer PIC2 Yes A Is all the wiring b...

Page 128: ...Troubleshooting 126 Electrical Control System Pic 2 IPM For dual tri zone Self Check Operating els Pic 1 check the vo Vs is it moving a between positive v value...

Page 129: ...lectrical Control System 127 Self Check Power Operating els PIC3 Main board LED when power on and unit standby Pic 2 IPM For qua zone PIC 4 check point button Press 1 time for check how many indoor un...

Page 130: ...No Correct the connections No Yes Check whether the main PCB is normal through index 2 Yes Yes Check whether the fan motor is normal through index 1 Yes Replace the fan motor Replace the main PCB The...

Page 131: ...r 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB must have problems and need to be replaced 2 Indo...

Page 132: ...s Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V For Duct Cassette NO Color Signal Voltage 1 Red Vs Vm 192V 380V 2 3 Black GND 0V 4 White Vcc 13 5 16 5V 5 Ye...

Page 133: ...Replace indoor or outdoor PCB Replace the sensor Check the resistance value of the sensor via Appendix 1 Is it normal No 2 4 1 5 Full water malfunction If the water level switch is inserted well No In...

Page 134: ...oor unit 2 4 2 1 Outdoor EEPROM malfunction ODU E0 If the EEPROM chip is welded on PCB replace the PCB directly Otherwise check whether the EEPROM chip plugged in PCB well Yes No Yes Insert the EEPROM...

Page 135: ...e at least one LED in the IPM board light Check the signal wire between the IPM module and the main board is it connected good Reconnect and retry Is error still display Replace IPM board and then che...

Page 136: ...and N L2 is about 220 240VAC Check the power supply Check whether the voltage of IPM board P and N is normal DC277 356V for 18 27KBtu h DC277 410V for 36KBtu h Replace bridge rectifiers and then check...

Page 137: ...operates normally Find out the cause and have it solved For example check whether the fan is blocked or the bearing is broken Check the wires of fan motor Are all the connections good No Yes No Correc...

Page 138: ...2 3 Black 4 White 5 Yellow 6 Blue Index2 1 Outdoor DC fan motor control chip is inside fan motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connec...

Page 139: ...oard No Replace high pressure protector Yes Judge 2 Whether the high pressure protector is broken Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is hi...

Page 140: ...efrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is too low No Stop the unit Yes Method Connect the pressure gauge to the gauge joint of the system check whether the press...

Page 141: ...ck whether the outdoor ambient temperature is higher than 50 No Stop the unit Yes Judge 3 Check whether the outdoor unit is bad ventilation No Make the outdoor unit ventilate well Yes Judge 5 The refr...

Page 142: ...n is right between compressor discharge temp sensor and PCB according to wiring diagrams Method Check whether the resistance of compressor discharge temp sensor is right refer to the Appendix 2 No Yes...

Page 143: ...an 65 C Yes Judge 1 Check whether the outdoor ambient temperature is higher than 50 No Judge 3 The refrigerant pipe is blocked Let the refrigerant out then use the high pressure nitrogen or refrigeran...

Page 144: ...rk normally No Replace the compressor check whether the system can work normally Check whether the lines in E part box are connected tightly Yes Connect it tightly check ok or not No No Yes No Replace...

Page 145: ...2 N11 AWSI HKD018 N11 Indoor fan motor RPG20E WZDK20 38G WZDK30 38G Model AWSI DCD012 N11 AWSI CBD012 N11 AWSI XAD012 N11 Indoor fan motor WZDK27 38GS WZDK37 38G RD 280 20 8A Outdoor unit Model AWAU Y...

Page 146: ...ature sensor from PCB measure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compresso...

Page 147: ...4 0000 36 6 13059 76 1 34105 116 0 40060 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 37956 1 37 1988 39 5 39689 79 1 21330 119 0 36954 0 35 2024 40 5 17519 80 1 1...

Page 148: ...37 3 74 8 358 114 2 489 5 234 9 35 35 78 75 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 1...

Page 149: ...lectrical Control System 147 2 Compressor checking Measure the resistance value of each winding by using the tester Position Resistance Value DA150S1C 20FZ DA250S2C 30MT TNB306FPGMC L Blue Red 0 95 20...

Page 150: ...he resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resistance value Red Black Several M Red Black Several M P N U N U V V W W Red 4 Indoor AC Fan M...

Page 151: ...Electrical Control System 149 SERVICE MANUAL Multi Splits Series...

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