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R410A

SERVICE MANUAL

SKYAIR Inverter Single Split

SM-5CKY/CCY/CEY-

EU

-A1

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Summary of Contents for SKYAIR

Page 1: ...R410A SERVICE MANUAL SKYAIR Inverter Single Split SM 5CKY CCY CEY EU A1...

Page 2: ...e Operation 12 2 3 Air Flow Direction Control 13 2 4 Fan Speed Control for Indoor Unit 13 2 5 Automatic Operation 13 2 6 Cold Draft Prevention 13 2 7 ON OFF Function on Indoor Unit 14 2 8 Water Pump C...

Page 3: ...ii...

Page 4: ...socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shock If it is necessary to supply power to the equipment t...

Page 5: ...ical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Do not tilt the unit when removing it...

Page 6: ...nect between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections can ca...

Page 7: ...s can cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause...

Page 8: ...x x ABQ100AV1 x x x x ABQ125AV1 x x x x ABQ140AV1 x x x x ACQ71AV1 x x x x ACQ100AV1 x x x x ACQ125AV1 x x x x ABQ71BV1 x x x x ACQ71BV1 x x x x ACQ100BV1 x x x x ACQ125BV1 x x x x AHQ71CV1 x x x x A...

Page 9: ..._AV1 and ACQ_AV1 Item Indication on PCB Description 1 A1 Fuse 2 A2 Varistor 3 A3 Connector to Wired Panel 4 A4 Connector to AC Twin Fan Signal 5 A5 Connector to Float Switch 6 A6 Connector to Display...

Page 10: ...ector to Wired Panel 3 A3 Varistor 4 A4 Fuse 5 A5 Connector to Float Switch 6 A6 Connector to Display and IR Receiver board 7 A7 Connector to Swing motor 8 A8 Connector to Room Sensor 9 A9 Connector t...

Page 11: ...Indication on PCB Description 1 A1 Connector to AC Twin Fan Signal A1 1 3 2 2 DC Fan motor Board Item Indication on PCB Description 1 A1 Connector to DC Fan 2 2 A2 Connector to DC Bus Power 3 3 A3 Co...

Page 12: ...dels Item Indication on PCB Description 1 A1 IR Receiver 2 A2 Operation LED 3 A3 Timer LED 4 A4 Sleep LED 5 A5 Display connector 6 A6 Emergency switch A1 A2 A3 A4 A5 A6 1 3 3 2 AHQ71 100 125 common fo...

Page 13: ...Display Board 1 3 4 1 AHQ71 100 125 common for all models Item Indication on PCB Description 1 A1 Emergency switch 2 A2 Sleep LED 3 A3 Timer LED 4 A4 Operation LED 5 A5 Display connector A1 A2 A3 A4 A...

Page 14: ...Inverter Single Split 11 1 3 5 Wired Extension Board 1 3 5 1 AHQ140 common for all models Item Indication on PCB Description 1 A1 Connector to Control PCB 2 A2 Wired panel connector A1 A2...

Page 15: ...ing Mode Operation The system has 5 operating modes The mode selection is done from indoor using handset The operating modes are Cool Heat Fan Auto Dry 2 2 1 Cooling Mode When Tr Ts 1 5 C Compressor I...

Page 16: ...nit is turned off Model dependent 2 4 Fan Speed Control for Indoor Unit The indoor speeds are HIGH MEDIUM LOW or AUTO FAN in COOL HEAT AUTO modes In FAN mode only HIGH MEDIUM and LOW speeds are allowe...

Page 17: ...N and 60 seconds to confirm the switch is CLOSE If the switch confirms OPEN it will force compressor to cut off If the switch is closed for 5 minutes the compressor will be allowed to cut in If the sw...

Page 18: ...shows the meaning of different pattern of indication light Indicator Light SLEEP RED COOL HEAT GREEN RED TIMER YELLOW Operation Faulty Indication Green Cooling mode Red Heating mode Red Auto mode in...

Page 19: ...Then press the same button repeatedly A series of error code will appear until ID buzzer produces a long beep The corresponding error code is indicated on the handset temperature display section 3 Ind...

Page 20: ...or unit Unit LED blinks two times indicate received signal 7 ON hold fan button till screen become normal display 8 Repeat the normal step to retrieve error by using remote controller step Holding TIM...

Page 21: ...OR ROOM THERMISTOR ABNORMALITY O O O 8 F6 HEAT EXCHANGER OVERHEAT O O O 9 U0 INSUFFICIENT GAS O O O 10 U4 COMMUNICATION ABNORMALITY O O O 11 UA INSTALLATION ERROR O O O Note O Function No function A1...

Page 22: ...to the indoor unit PCB No Yes Does A3 appear on the remote controller display Yes Begin There is a mulfunction of the drain system Yes Is the drain water level abnormally high Is the float switch con...

Page 23: ...Any air short circuit Does it confirm to the thermistor accuracy table Yes No Check indoor air flow Check intake air filter Check fan blower condition Change indoor thermistor Check the dust accumulat...

Page 24: ...supply and rotate fan by hand No Connect correctly Change fan motor C4 C9 Description Indoor Heat Exchanger Thermistor Abnormality Indoor Room Thermistor Abnormality Supposed Cause 1 Thermistor conne...

Page 25: ...r unit PCB Check the installation condition OK OK OK OK Malfunction Change the installation location or direction Clean the outdoor heat exchanger Replace the outdoor fan motor Reconnect the connector...

Page 26: ...oor coil thermistor Put the thermistor back to actual position Check the indoor coil outdoor coil and discharge pipe thermistor resistance Thermistor in actual position Resistance normal EXV functioni...

Page 27: ...wer supply voltage Check the indoor unit outdoor unit connection wires No Check the LED A on the outdoor unit PCB Check the power supply waveform Check the voltage of the connection wires on the indoo...

Page 28: ...outdoor unit PCB mounted or defective Troubleshooting OK No Yes Are the connecting wires connected properly Yes No Correct the connection Match the compatible models Matched compatibly No Yes Change f...

Page 29: ...Wiring Diagram 26 Wiring Diagram Model ABQ71 100 125 140AV1 Model ACQ71 100 125AV1...

Page 30: ...Wiring Diagram 27 Model AHQ71AV1 Model AHQ100 125AV1...

Page 31: ...Wiring Diagram 28 Model AHQ140AV1 Model ABQ140BV1...

Page 32: ...Wiring Diagram 29 Model ACQ100 125BV1 Model ABQ71 100CV1...

Page 33: ...Wiring Diagram 30 Model ABQ125 140CV1 Model ACQ71 100 125CV1...

Page 34: ...Wiring Diagram 31 Model AHQ71 100 125CV1 Model AHQ140CV1...

Page 35: ...1 61 2 80E 00 2 86E 00 2 93E 00 12 1 66E 01 1 69E 01 1 71E 01 62 2 71E 00 2 78E 00 2 84E 00 13 1 59E 01 1 62E 01 1 64E 01 63 2 63E 00 2 69E 00 2 75E 00 14 1 53E 01 1 55E 01 1 57E 01 64 2 55E 00 2 61E...

Page 36: ...ort circuited Is the outdoor heat exchanger very dirty Yes Installation condition check Change the installation location or direction Change the installation location or direction Clean the outdoor he...

Page 37: ...ly waveform between Live and Neutral on the terminal board and check the waveform disturbance using oscilloscope Check if the power supply waveform is a sine wave Fig 1 Check if there is waveform dist...

Page 38: ...roduct manufactured in an ISO certifi ed facility This document contains the most current information as of this orienting For the most up to date product information please go to www daikin oyl com m...

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