Airwell AWAU-YCZ218-H11 Service Manual Download Page 102

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Troubleshooting

Electrical Control System

175

1. Temperature sensor checking

Disconnect the temperature 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,

Compressor discharge temp.(T5) sensor.

Measure the resistance value of each winding by using the multi-meter.

Summary of Contents for AWAU-YCZ218-H11

Page 1: ...09 N11 AWSI HKD009 N11 AWSI HCD009 N11 AWSI CCD009X N11 AWSI XBD009X N11 AWSI HND012 N11 AWSI HKD012 N11 AWSI HCD012 N11 AWSI CBD012 N11 AWSI CCD012 N11 AWSI XAD012 N11 AWSI XBD012 N11 AWSI DCD012 N11...

Page 2: ...formation 1 Part 2 Indoor Units 18 Part 3 Outdoor Units 93 Part 4 Installation 124 Part 5 Electrical Control System 135 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...

Page 4: ...24 N11 24000 220 240V 50Hz 1Ph Four way cassette compact 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...

Page 5: ...s HKD HND HCD Four way cassette Compact Console Duct 2 2 Outdoor Units AWAU YCZ218 H11 7SP091166 AWAU YCZ327 H11 7SP091167 AWAU YCZ430 H11 7SP091168 AWAU YCZ536 H11 7SP091169 AWAU YCZ218 H11 7SP091170...

Page 6: ...14 5 OUTDOOR Refrigerant control Capillary EXV Compressor type model Twin 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 65...

Page 7: ...13 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 Soun...

Page 8: ...Refrigerant control Capillary EXV Compressor type model Twin 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 68 Sound pressu...

Page 9: ...A 17 OUTDOOR Refrigerant 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 Soun...

Page 10: ...Refrigerant control Capillary EXV Compressor type model Twin Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 800 Air flow H L m3 hr 3800 Sound power level 4 H L dB A 70 Sound pressur...

Page 11: ...A 17 7 OUTDOOR Refrigerant 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 Sou...

Page 12: ...UTDOOR Refrigerant control Capillary EXV Compressor type model Twin Rotary DC Inverter Fan type quantity Axial x 1 Fan speeds H L RPM 850 Air flow H L m3 hr 5500 Sound power level 4 H L dB A 70 Sound...

Page 13: ...23 7 OUTDOOR Refrigerant 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...

Page 14: ...imensions 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 15: ...control type Remote control Model Indoor Unit AWSI HKD009 N11 AWSI HKD012 N11 Installation Method of Pipe Flared Flared Characteristics Units Cooling Heating Cooling Heating Capacity 4 kW 2 65 2 8 3...

Page 16: ...sions LxWxH mm 1015x265x350 1135x315x395 Packaged weight kg 12 2 15 2 Operation control type Remote control Remote control Model Indoor Unit AWSI HCD009 N11 AWSI HCD012 N11 Installation Method of Pipe...

Page 17: ...H mm 1035x380 x295 1120x405x310 Packaged weight kg 12 5 15 2 Operation control type Remote control Remote control Model Indoor Unit AWSI DCD012 N11 AWSI DID012 N11 Installation Method of Pipe Flared F...

Page 18: ...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 19: ...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 20: ...93 Part 3 Outdoor Units 1 Dimensions 94 2 Service Space 98 3 Refrigeration Cycle Diagram 99 4 Wiring Diagrams 101 5 Indoor units combination 105 6 Operation Limits 106 7 Sound Levels 107 8 Exploded V...

Page 21: ...Dimensions 94 Outdoor Units 1 Dimensions AWSI XAD012 N11 560 W1 H 6 D1 335 D2 360 845 W 313 D3 335 D1 R6 R5 A1 22 A2 50 B1 120 110 B2 700 W2 73 58 58 58 110 H1 H2 200 7 243 6 L1 L2...

Page 22: ...Dimensions Outdoor Units 95 AWAU YCZ327 H11 900 W 590 W1 860 H 12 D2 355 D1 333 302 D3 333 D1 50 97 90 B2 B1 8 A2 55 55 55 55 55 110 62 W2 H1 H2 R6 238 4 285 7 L1 L2...

Page 23: ...Dimensions 96 Outdoor Units AWAU YCZ430 H11 900 W 590 W1 860 H 12 D2 355 D1 333 302 D3 333 D1 50 97 90 B2 B1 8 A2 55 55 55 55 55 55 55 110 62 W2 H1 H2 R6 238 4 285 7 L1 L2...

Page 24: ...Dimensions Outdoor Units 97 AWAU YCZ536 H11...

Page 25: ...Service Space 98 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 26: ...PILIARY TUBE EXV B CAPILIARY B LIQUID VALVE B GAS VALVE B Accumulator T2B A Evaporator temp sensor outlet T2B B 3 2 Refrigeration cycle diagram of inverter 1 drive 3 type LIQUID VALVE A GAS VALVE A HE...

Page 27: ...or High pressure switch Low pressure switch T2B A Evaporator temp sensor outlet T2B B T2B C T2B D 3 4 Refrigeration cycle diagram of inverter 1 drive 5 type LIQUID VALVE A GAS VALVE A HEAT EXCHANGE EV...

Page 28: ...Wiring Diagrams Outdoor Units 101 4 Wiring Diagrams AWAU YCZ218 H11 7SP091166 AWAU YCZ218 H11 7SP091170...

Page 29: ...Wiring Diagrams 102 Outdoor Units AWAU YCZ327 H11 7SP091167 AWAU YCZ327 H11 7SP091171...

Page 30: ...Wiring Diagrams Outdoor Units 103 AWAU YCZ430 H11 7SP091168 AWAU YCZ430 H11 7SP091172...

Page 31: ...Wiring Diagrams 104 Outdoor Units AWAU YCZ536 H11 7SP091169 AWAU YCZ542 H11 7SP091173...

Page 32: ...NCO 2x IDU 3 x IDU 4 x IDU 5 x IDU 18 18 7 7 24 7 7 7 18 7 12 12 18 7 7 7 7 9 7 7 9 9 24 7 9 9 12 18 18 24 7 9 24 7 7 7 24 7 12 18 18 7 7 7 7 12 7 7 9 12 12 7 9 12 12 12 7 12 18 7 7 9 18 7 12 18 24 7...

Page 33: ...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 operate...

Page 34: ...Power dB A Noise level dB A AWAU YCZ218 H11 7SP091166 65 60 AWAU YCZ327 H11 7SP091167 68 61 AWAU YCZ430 H11 7SP091168 70 62 AWAU YCZ536 H11 7SP091169 70 64 Model Noise Power dB A Noise level dB A AWAU...

Page 35: ...Exploded View and Spare Part list 108 Outdoor Units 8 Exploded View and Spare Part list Exploded View of outdoor unit AWAU YCZ218 H11 7SP091166...

Page 36: ...057 5 Valve plate 1 201257190109 21 1 Wire joint 1 202301450157 6 Chassis assembly 1 201257090054 21 2 Terminal board 1 201257190117 7 Rear right clapboard assembly 1 201257190099 22 Liquid valve asse...

Page 37: ...Exploded View and Spare Part list 110 Outdoor Units Exploded view of model AWAU YCZ218 H11 7SP091170...

Page 38: ...tion 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 17122300001...

Page 39: ...Exploded View and Spare Part list 112 Outdoor Units Exploded View of outdoor unit AWAU YCZ327 H11 7SP091167...

Page 40: ...01300554 11 Front panel 1 201248200103 24 Liquid valve assembly 1 201657390000 12 Air outlet grille 1 2011482A0001 24 1 Liquid valve 1 201600740091 Round sticker of air outlet grille 1 2011374A0005 24...

Page 41: ...Exploded View and Spare Part list 114 Outdoor Units Exploded view of model AWAU YCZ327 H11 7SP091171...

Page 42: ...ntrol 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 43: ...Exploded View and Spare Part list 116 Outdoor Units Exploded View of outdoor unit AWAU YCZ430 H11 7SP091168...

Page 44: ...1600720091 Round sticker of air outlet grille 1 2011374A0005 25 2 4 ways valve 1 201600600119 13 Axial flow fan 1 201100300527 26 Capillary assembly 1 201657390066 14 Brushless DC Motor 1 202400300047...

Page 45: ...Exploded View and Spare Part list 118 Outdoor Units Exploded View of outdoor unit AWAU YCZ430 H11 7SP091172...

Page 46: ...170 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 I...

Page 47: ...Exploded View and Spare Part list 120 Outdoor Units Exploded View of outdoor unit AWAU YCZ536 H11 7SP091169...

Page 48: ...ssembly 1 201601300554 11 Air outlet grille 1 2011487A0003 28 liquid valve assembly 1 201657290021 Round sticker of air outlet grille 1 2011374A0005 28 1 Liquid valve 1 201600740091 12 Front panel 1 2...

Page 49: ...Exploded View and Spare Part list 122 Outdoor Units Exploded View of outdoor unit AWAU YCZ542 H11 7SP091173...

Page 50: ...ntrol 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 board...

Page 51: ...onnecting the cables 125 3 Pipe length and the elevation 125 4 Installation for the first time 127 5 Adding the refrigerant after running the system for many years 130 6 Re installation while the indo...

Page 52: ...and switch 3 Pipe length and the elevation Maximum piping length and height difference 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Max length for all rooms m 30 45 60 75 Max length for one IU m 20 25 30...

Page 53: ...on pipe diameter mm inch Model Pipe diameter mm inch 7K9K12K Liquid 6 35 1 4 Liquid 6 35 1 4 Gas 9 52 3 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 Outdoor unit union...

Page 54: ...the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charge hose of handle hi connecti...

Page 55: ...valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging...

Page 56: ...e Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale a...

Page 57: ...on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5...

Page 58: ...handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close i...

Page 59: ...closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Disc...

Page 60: ...oth the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates...

Page 61: ...record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged...

Page 62: ...Electrical Control System Electrical Control System 135 Part 5 Electrical Control System 1 Electrical Control Function 136 2 Troubleshooting 150...

Page 63: ...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 64: ...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 65: ...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 66: ...5 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 High Low 1 0 Medium 1 5 F...

Page 67: ...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 68: ...les 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 compressor is running the indoor fan is cont...

Page 69: ...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 70: ...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 71: ...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 72: ...perature 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 level switch to control the action of drain pump Main ac...

Page 73: ...air conditioner can be as lower as 8 which keeps the room temperature steady at 8 and prevents household things freezing when the house is unoccupied for a long time in severe cold weather 1 3 14 Mode...

Page 74: ...70 degree the digital display tube will show 70 If the indoor unit is not connected the digital display tube will show 18 B indoor unit evaporator outlet temp T2BB 19 C indoor unit evaporator outlet...

Page 75: ...uency 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 Average value of T2 Sum T2...

Page 76: ...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 77: ...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 78: ...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 79: ...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 80: ...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 81: ...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 82: ...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 83: ...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 84: ...Troubleshooting Electrical Control System 157 Pic 2 IPM For dual tri zone Self Check Operating els Pic 1 check Vs is it m between po value...

Page 85: ...58 Electrical Control System 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 86: ...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 87: ...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 88: ...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 89: ...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 90: ...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 91: ...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 92: ...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 93: ...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 94: ...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 95: ...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 96: ...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 97: ...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 98: ...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 99: ...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 100: ...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 101: ...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 102: ...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 103: ...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 104: ...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 105: ...78 Electrical Control System 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 106: ...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 107: ...SERVICE MANUAL Multi Splits Series...

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