Fujitsu AGYG09KVCB Service Manual Download

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CONTENTS

4. CONTROL AND FUNCTIONS

1. Compressor frequency control..................................................................04-1

2. Auto changeover operation........................................................................04-7
3. Fan control...................................................................................................04-9

3-1. Indoor fan control............................................................................................................04-9
3-2. Outdoor fan control.......................................................................................................04-14

4. Louver control ...........................................................................................04-17

4-1. Vertical airflow direction louver control .........................................................................04-17
4-2. Swing operation............................................................................................................04-17

5. Timer operation control ............................................................................04-18

5-1. Wireless remote control................................................................................................04-18
5-2. Wired remote control ....................................................................................................04-20

6. Defrost operation control .........................................................................04-23

6-1. Defrost operation in heating operation stopped ............................................................04-24

7. Various control..........................................................................................04-25

8. Various protections...................................................................................04-29

Summary of Contents for AGYG09KVCB

Page 1: ...AIR CONDITIONER Floor type SERVICE MANUAL INDOOR AGYG09KVCB AGYG12KVCB AGYG14KVCB OUTDOOR AOYG09KVCBN AOYG12KVCBN AOYG14KVCBN SR_AG002EF_03 2020 11 25 ...

Page 2: ...please check with our authorized dealer Trademarks FGLair is trademark of Fujitsu General Limited in the United States other countries or both Google Play is trademark of Google Inc App Store is a service mark of Apple Inc registered in the U S and other countries Copyright 2020 Fujitsu General Limited All rights reserved ...

Page 3: ...CONTENTS 1 GENERAL INFORMATION 2 TECHNICAL DATA AND PARTS LIST 3 TROUBLESHOOTING 4 CONTROL AND FUNCTIONS 5 FILED WORKING ...

Page 4: ......

Page 5: ...1 GENERAL INFORMATION 2020 10 05 SR_CH01_AG002EF_01 ...

Page 6: ...CONTENTS 1 GENERAL INFORMATION 1 Specifications 01 1 1 1 Indoor unit 01 1 1 2 Outdoor unit 01 3 2 Dimensions 01 4 2 1 Indoor unit 01 4 2 2 Outdoor unit 01 6 ...

Page 7: ...3 43 MED 35 35 37 LOW 29 29 29 QUIET 22 22 22 Heat exchanger type Dimensions H W D mm 378 550 26 6 Fin pitch 1 2 Rows Stages 2 18 Pipe type Copper tube Fin type Aluminium Enclosure Material Polystyrene Color White Dimensions H W D Net mm 600 740 200 Gross 700 820 310 Weight Net kg 14 Gross 18 Connection pipe Size Liquid mm in Ø 6 35 Ø 1 4 Gas Ø 9 52 Ø 3 8 Method Flare Drain hose Material PP LLDPE ...

Page 8: ...C 4 2 35 C Heating Average 3 0 10 C 3 6 10 C 4 2 10 C SEER Cooling kWh kWh 8 60 8 50 8 10 SCOP Heating Average 4 40 4 20 4 00 Annual energy consumption QCE kWh a 102 144 181 QHE Average 953 1 198 1 467 Sound power level Cooling High dB A 53 53 57 Heating 53 55 55 1 1 Indoor unit 01 2 1 Specifications GENERAL INFORMATION GENERAL INFORMATION ...

Page 9: ...0 400 Enclosure Material Steel sheet Color BEIGE Dimensions H W D Net mm 632 799 290 Gross 692 940 375 Weight Net kg 36 38 Gross 40 42 Connection pipe Size Liquid mm in Ø 6 35 Ø 1 4 Gas Ø 9 52 Ø 3 8 Method Flare Pre charge length m 15 Max length 20 Max height difference 15 Operation range Cooling C 10 to 46 Heating 25 to 24 NOTES Specifications are based on the following conditions Cooling Indoor ...

Page 10: ...G09KVCB AGYG12KVCB and AGYG14KVCB 600 200 Side view Front view 740 Unit mm Installation space 100 or more 80 or more 80 or more 150 or below from the floor 50 or more 2 1 Indoor unit 01 4 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 11: ...a larger than X m2 Amount of refrigerant charge M kg Minimum room area X m2 M 1 22 1 22 M 1 23 12 99 1 23 M 1 50 19 31 1 50 M 1 75 26 28 1 75 M 2 0 34 33 2 0 M 2 5 53 63 2 5 M 3 0 77 23 3 0 M 3 5 105 12 3 5 M 4 0 137 29 IEC 60335 2 40 2 1 Indoor unit 01 5 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 12: ...w Front view Bottom view Side view Valve part Top view 580 799 19 68 16 290 33 30 109 353 632 20 330 Pitch of bolts for installation Pitch of bolts for installation 4 M10 hole Airflow Drain port Ø42 37 120 184 399 180 2 2 Outdoor unit 01 6 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 13: ...2 TECHNICAL DATA AND PARTS LIST 2020 11 25 SR_CH02_AG002EF_02 ...

Page 14: ...2 8 4 Accessories 02 12 4 1 Indoor unit 02 12 4 2 Outdoor unit 02 13 5 Optional parts 02 14 5 1 Indoor unit 02 14 6 Refrigerant system diagrams 02 16 6 1 Model AOYG09KVCBN 02 16 6 2 Models AOYG12KVCBN and AOYG14KVCBN 02 17 7 Wiring diagrams 02 18 7 1 Indoor unit 02 18 7 2 Outdoor unit 02 19 8 PC board diagrams 02 20 8 1 Models AGYG09KVCB AGYG12KVCB and AGYG14KVCB 02 20 8 2 Models AOYG09KVCBN AOYG1...

Page 15: ...rs working in the local area shall be instructed on the nature of work being carried out Work in confined spaces shall be avoided The area around the workspace shall be sectioned off Ensure that the conditions within the area have been made safe by control of flammable ma terial Electric shock may occur After turning off the power always wait 5 minutes before touching electrical components Do not ...

Page 16: ...G14KVCB Exterior parts and chassis 25 1 5 2 7 3 4 4 6 24 6 20 23 26 20 18 h f a b c g 19 e 17 21 d 11 9 8 16 10 12 13 14 12 15 22 2 1 Models AGYG09KVCB AGYG12KVCB and AGYG14KVCB 02 2 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 17: ...16 Front panel L 17 9900991005 Pipe thermistor 18 9316091269 Evaporator total assy 19 9316192027 Thermistor holder 20 9316195011 Motor holder 21 9602851003 Fan motor MFD 14SXN 22 9316309012 Crossflow fan B assy 23 9602850006 Fan motor MFD 14TXN 24 9312004034 Crossflow fan assy 25 9900975067 Room thermistor 26 9711694034 Main PCB 09 model 9711694041 Main PCB 12 model 9711694058 Main PCB 14 model a ...

Page 18: ... 63 58 59 66 51 69 a b 60 61 62 d e c 68 67 54 54 50 54 53 56 57 55 52 52 56 56 2 1 Models AGYG09KVCB AGYG12KVCB and AGYG14KVCB 02 4 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 19: ... Louver U 63 9303529010 Bushing A 64 9316213012 Gear case 65 9309994003 Gear A 66 9316273016 Casing cover B 67 9711714008 Display assy 68 9711696007 Indicator PCB 9707580020 Wire with connector P1002 on Indicator PCB P360 on Main PCB 9707581010 Wire with connector White P1001 on Indicator PCB P1000 on Indicator PCB 69 9900384043 Step motor Up Down a Casing b Casing reinforcement c Display cover d ...

Page 20: ...7 106 104 112 111 112 112 114 114 114 113 117 111 110 115 115 102 124 103 100 108 105 101 122 123 121 2 1 Models AGYG09KVCB AGYG12KVCB and AGYG14KVCB 02 6 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 21: ...110 9312156016 Bushing B 111 9303529010 Bushing A 112 9316334014 L and R louver Z 113 9316335011 Joint Z 114 9315282019 Spacer D 115 9316219014 Stopper 116 9316374010 Lower cover 117 9316386013 Drain pan cover B 118 9316216013 Damper 119 9316274013 Drain pan cover F 120 9316918009 Fan guard Z 121 9900384074 Step motor Damper lock R 122 9900384067 Step motor Damper lock L 123 9900424015 Micro switc...

Page 22: ...G12KVCBN and AOYG14KVCBN Exterior parts and Chassis 1 3 6 9 21 b 13 10 11 12 14 15 5 4 7 8 17 16 19 18 20 22 2 a 3 1 Models AOYG09KVCBN AOYG12KVCBN and AOYG14KVCBN 02 8 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 23: ... PCB Service unit 12 model 9709685419 Main PCB Service unit 14 model 11 9900935054 Thermistor assy 12 9322420039 Heat sink 13 9323550049 Base assy 14 9319151007 Emblem 15 9384851000 Front panel assy 16 9384273017 Fan guard 17 9323541016 Heater holder B 18 0700103070 Nut 19 9322150004 Propeller fan 20 9603601003 Fan motor 21 9322553195 Motor bracket assy 22 9317089661 Condenser total assy a Separat...

Page 24: ... 50 51 52 54 55 56 a 57 53 A A 63 64 62 61 60 59 58 65 65 65 66 66 66 3 1 Models AOYG09KVCBN AOYG12KVCBN and AOYG14KVCBN 02 10 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 25: ...ls 56 9322474001 2 way valve assy 57 9322475008 3 way valve assy 09 model 9322850010 3 way valve assy 12 14 models 58 9324024006 S insulator B 09 model 59 9322537003 S insulator H 09 model 60 9324014007 S insulator B 12 14 models 61 9322847003 S insulator F 62 9322501004 S insulator H 12 14 models 63 9323045002 S insulator V 64 9322824004 S insulator K 12 14 models 65 9322386007 Rubber cushion 66 ...

Page 26: ... Operating manual 1 Operating manual CD ROM 1 Installation manual 1 Cloth tape 1 Wall hook bracket 1 Tapping screws large 9 Remote controller 1 Tapping screws small 2 Battery 2 Air cleaning filters 1 Remote controller holder 1 4 1 Indoor unit 02 12 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 27: ...it Models AOYG09KVCBN AOYG12KVCBN and AOYG14KVCBN Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 4 2 Outdoor unit 02 13 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 28: ...tion Room temperature can be accurately controlled using the built in thermo sensor Wire type Non polar 2 wire Simple remote controller UTY RSRY Compact remote controller concentrates on the basic functions such as Start Stop fan control temperature setting and operation mode Wire type Non polar 2 wire Simple remote controller UTY RHRY Compact remote controller concentrates on the basic functions ...

Page 29: ...as smartphones and tablets For connection indoor unit with UART interface Modbus converter UTY VMSX For connection between indoor unit with UART interface and a Modbus open network KNX converter UTY VKSX For connection between indoor unit with UART interface and a KNX open network NOTE Combined use of following optional parts and Wireless LAN adapter UTY TFSXZ1 is not allowed Modbus converter KNX ...

Page 30: ...anger INDOOR Heat exchanger OUTDOOR Compressor Cooling Heating ThD ThR ThP ThHO ThO Thermistor Discharge Temp Thermistor Outdoor Temp Thermistor Heat Exchanger Out Temp ThD ThO ThHO Thermistor Room Temp Thermistor Pipe Temp ThR ThP 6 1 Model AOYG09KVCBN 02 16 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ...nger OUTDOOR Compressor Cooling Heating ThD ThR ThP ThHO ThO Thermistor Discharge Temp Thermistor Outdoor Temp Thermistor Heat Exchanger Out Temp ThD ThO ThHO Thermistor Room Temp Thermistor Pipe Temp ThR ThP Pressure switch 6 2 Models AOYG12KVCBN and AOYG14KVCBN 02 17 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 32: ...7 Wiring diagrams 7 1 Indoor unit Models AGYG09KVCB AGYG12KVCB and AGYG14KVCB 7 1 Indoor unit 02 18 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 33: ...7 2 Outdoor unit Model AOYG09KVCBN Models AOYG12KVCBN and AOYG14KVCBN 7 2 Outdoor unit 02 19 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 34: ...B02B PASK 1 WHITE P390 BM02B GHHD B TBT GRAY P300 B12B PASK 1 WHITE P210 B04B PASK 1 WHITE P1 B3 5 0 B XASK 1 A BLACK F1 3 15A AC250V WHITE WHITE WHITE WHITE WHITE WHITE THERMISTOR ROOM TEMP THERMISTOR PIPE TEMP EXTERNAL INPUT 1 EXTERNAL INPUT 2 EXTERNAL OUTPUT 1 EXTERNAL OUTPUT 2 EXTERNAL OUTPUT 3 EXTERNAL OUTPUT 4 TEST DAMPER LIMIT SWITCH CLOSE DAMPER LIMIT SWITCH OPEN MAIN PCB 09 model K19YE 20...

Page 35: ...stance 1 970 20 BLACK BLACK P60 B2P3 VH B WHITE AC230V ON TRCB 25 15 12 8 TURNS INDOOR UNIR EMI FILTER KRFC 13 2 TURNS 1 Red 3 Blue 1 Red 4 Orange 1 Red 5 Yellow 1 Red 6 White P30 Expansion Valve Coil 46 0 20 Recommended Drive Condition Unipolar Drive 1 2 Phase Excitation Coil resistance 1 3 4 5 6 Pin No Terminal code Vm GND Vcc Vsp FG Function of terminal Revolution pulse output Speed control vol...

Page 36: ...8 2 Models AOYG09KVCBN AOYG12KVCBN and AOYG14KVCBN 02 22 8 PC board diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 37: ...3 TROUBLESHOOTING 2020 11 11 SR_CH03_AG002EF_01 ...

Page 38: ...imit switch error Indoor unit 03 15 2 13 E 62 Outdoor unit main PCB error Outdoor unit 03 16 2 14 E 71 Discharge thermistor error Outdoor unit 03 17 2 15 E 73 Outdoor unit heat exchanger thermistor error Outdoor unit 03 18 2 16 E 74 Outdoor temperature thermistor error Outdoor unit 03 19 2 17 E 84 Current sensor error Outdoor unit 03 20 2 18 E 94 Trip detection Outdoor unit 03 21 2 19 E 95 Compres...

Page 39: ...5 1 Indoor unit 03 44 5 2 Outdoor unit 03 45 CONTENTS continued ...

Page 40: ......

Page 41: ...ation Indoor unit 4 times 5 times Continuous 45 E 51 Indoor unit fan motor error Indoor unit 5 times 1 times Continuous 51 E 57 Damper Open Close detection limit switch error 5 times 7 times Continuous 57 E 57 Damper error Damper Open Close simultaneous detection limit switch error Indoor unit 5 times 7 times Continuous 57 E 62 Outdoor unit main PCB error Outdoor unit 6 times 2 times Continuous 62...

Page 42: ...Outdoor unit fan motor failure Check point 1 Reset the power and operate Does error indication show again If no go to Check point 1 2 Check point 2 Check connection Check any loose or removed connection line of indoor unit and outdoor unit Check connection condition is control unit If there is loose connector open cable or mis wiring If there is an abnormal condition correct it by referring to the...

Page 43: ...03 36 If outdoor fan motor is abnormal replace outdoor unit fan motor and main PCB If the checked parts are normal replace the main PCB End Check point 1 2 Check external cause such as noise Check the complete insulation of the grounding Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End 2 1 E 11...

Page 44: ... Does error indication show again If no go to Check point 1 2 Check point 2 Check connection Check any loose or removed connection line of indoor unit and outdoor unit If there is an abnormal condition correct it by referring to the installation manual or the DESIGN TECHNICAL MANUAL Check connection condition is control unit If there is loose connector open cable or mis wiring Check point 3 Check ...

Page 45: ...3 If it is abnormal replace main PCB End Check point 1 2 Check external cause such as noise Check if the ground connection is proper Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End 2 2 E 11 Serial communication error Serial forward transfer error Indoor unit 03 5 2 Troubleshooting with error c...

Page 46: ...ection of terminal After turning off the power check correct the followings Check the connection of terminal between remote controller and indoor unit and check if there is a disconnection of the cable Check point 2 Check connection If it is DC 12 V remote controller is failure Main PCB is normal Replace Remote Control If it is DC 0 V main PCB is failure Check remote controller once again Replace ...

Page 47: ...g Check any shortage or corrosion on PCB Check point 3 Replace main PCB Change main PCB End Check point 1 2 Check external cause such as noise Check if the ground connection is proper Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End NOTE EEPROM EEPROM Electronically Erasable and Programmable Re...

Page 48: ...Forecast of cause MANUAL AUTO button failure Controller PCB and indicator PCB failure Check point 1 Check the MANUAL AUTO but ton If MANUAL AUTO button is disabled on off switching replace it Check if MANUAL AUTO button is kept pressed Check On Off switching operation by using a meter Check point 2 Replace main PCB and indicator PCB If Check Point 1 does not improve the symptom change main PCB and...

Page 49: ...et power when reinstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the room thermistor resistance value refer to Thermistor resistance values on page 03 44 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of each indoor unit and check...

Page 50: ...is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the heat exchanger thermistor resistance value refer to Thermistor resis tance values on page 03 44 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of each...

Page 51: ...re Harness disconnection Refrigerant leakage sensor deterioration System is down Check point 1 Check connection of connector Check if connector is loose or removed Check erroneous connection Check if refregerant leakage sensor cable is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Replace refrigerant leakage sensor If an abnormality failure occurs th...

Page 52: ...rmal voltage of drive circuits detected Forecast of cause Connector connection failure Harness disconnection Refrigerant leakage sensor deterioration Continuous operation for a certain period is possible Check point 1 Replace refregirant leakage sensor Replace due to expiration of refregirant leakage sensor Refregirant leakage sensor needs to be replaced regulary End 2 9 E 45 Refrigerant leakage s...

Page 53: ...n by hand when operation is off Check if fan is caught dropped off or locked motor If fan or bearing is abnormal replace it Check point 2 Check ambient temperature around motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check indoor unit fan motor Check Indoor unit fan m...

Page 54: ...ler PCB failure Check point 1 Check limit switch Check operation of limit switch any blocking by dust etc Remove limit switch and check ON OFF switching operation by using a meter If limit switch is detective replace it Check point 2 Check connector CN18 wire Check loose contact of CN18 shorted wire pinched wire Replace limit switch if the wire is abnormal Check point 3 Check Damper Check the obst...

Page 55: ...r PCB failure Check point 1 Check limit switch Check operation of limit switch any blocking by dust etc Remove limit switch and check ON OFF switching operation by using a meter If limit switch is detective replace it Check point 2 Check connector CN18 wire Check loose contact of CN18 shorted wire pinched wire Replace limit switch if the wire is abnormal Check point 3 Replace main PCB If Check Poi...

Page 56: ...ary open voltage drop Main PCB failure Check point 1 Reset power supply and operate If no go to Check point 1 2 Does error indication show again Check point 2 Replace main PCB Change main PCB End Check point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generat ed Check if ground is connection correctly or there are no related cables nea...

Page 57: ...thermistor cable is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the discharge temperature thermistor resistance value refer to Thermistor resistance values on page 03 44 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure ...

Page 58: ...mistor cable is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the outdoor unit heat exchanger thermistor resistance value refer to Ther mistor resistance values on page 03 44 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make su...

Page 59: ...tor cable is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the outdoor temperature thermistor resistance value refer to Thermistor re sistance values on page 03 44 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit ...

Page 60: ...ponents Upon correcting the removed connector or mis wiring reset the power Check if the terminal connection is loose Check if connector is removed Check erroneous connection Check if cable is open Check point 3 Replace main PCB If Check point 1 2 do not improve the symptom change main PCB End Check point 1 2 Check external cause at Indoor and Outdoor Voltage drop or Noise Instant drop Check if th...

Page 61: ...er on heat exchanger excessive rise of ambient temperature Main PCB failure Inverter compressor failure lock winding short Check point 1 Check the outdoor unit fan operation heat exchanger ambient temperature No obstructions in air passages Heat exchange fins clogged Outdoor unit fan motor check Ambient temperature not raised by the effect of other heat sources Discharged air not sucked in Check p...

Page 62: ...onents Main PCB failure Compressor failure Check point 1 Check Noise from Compressor Turn on Power and check operation noise If an abnormal noise show replace compres sor Check point 2 Check connection of around the compressor components For compressor terminal main PCB Check if connector is removed Check erroneous connection Check if cable is open Refer to inverter compressor in Service parts inf...

Page 63: ...d off or locked motor If fan or bearing is abnormal replace it Check point 2 Check ambient temperature around motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check outdoor unit fan motor Check outdoor unit fan motor Refer to outdoor unit fan motor in Service parts infor...

Page 64: ...e Forecast of cause Air filter clogged Connector connection failure Thermistor failure Coil failure 4 way valve failure Main PCB failure Check point 1 Check air filter condition Check air filter dirty If the air filter dirty clean up the air filter Check point 2 Check connection of connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correcting ...

Page 65: ... value is 1 88 kΩ 2 29 kΩ If it is open or abnormal resistance value replace solenoid coil 4 way valve Check each piping temperature and the location of the valve by the temperature difference If the value location is not proper replace 4 way valve Check point 5 Replace main PCB If Check Point 1 to 4 do not improve the symptom replace main PCB End 2 21 E 99 4 way valve error Outdoor unit 03 25 2 T...

Page 66: ...ling operation check gas side of the 3 way valve For heating operation check liquid side of the 3 way valve Check point 2 Check the electronic expansion valve EEV and strainer Check if EEV open Refer to outdoor unit Electronic Expansion Valve EEV in Service parts information on page 03 36 Check the strainer clogging Check point 3 Check the outdoor unit fan and heat exchanger Check for foreign obje...

Page 67: ...the refrigerant leakage Check point 6 Replace main PCB If check point 1 to 5 do not improve the symptom replace the main PCB End 2 22 E A1 Discharge temperature error Outdoor unit 03 27 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 68: ...s important and fan operation cannot be stopped Check for refrigerant leaks and take corrective action Check point 2 Error release condition Power on again If the power is not turned on again the error will not be cleared even if the gas concentration drops If the refrigerant leakage is detected again after the power is turned on again an error will occur again Replace the refrigerant leakage sens...

Page 69: ...er sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check electrical components Check the voltage of power supply Check if AC 207 to 253 V appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse in fi...

Page 70: ... a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check electrical components Check the voltage of power supply Check if AC 207 to 253 V appears at outdoor unit terminal L N If no go to C...

Page 71: ...nt drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check wired remote...

Page 72: ...ation condition Check connection pipe specified pipe length and pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to the installation manual or the DESIGN TECHNICAL MANUAL Check point 5 Check Refrigeration cycle Check if strainer is clogged Refer to the figure below Measure gas pressure and if there is a leakage correct it Check t...

Page 73: ...nd outlet as shown be low Pipe In Pipe Out If there is a difference like shown below there is a possibility of inside clogged In this case re place the strainer Pipe In Pipe Out 3 4 No cooling No heating 03 33 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 74: ...grille and front panel normal Is main unit installed in stable condi tion Is fan guard installed normally Is fan broken or deformed Is the screw of fan loose Is there any object which obstruct the fan rotation Is fan broken or deformed Is the screw of fan loose Is there any object which obstruct the fan rotation End Check if vibration noise by loose bolt or contact noise of piping is happening Is ...

Page 75: ...in stable condi tion Is main unit broken or deformed at the time of transportation or maintenance Is the filter clogged Is drain hose connection loose Is there a trap in drain hose Is drain hose clogged Check gas pressure and cor rect it if there was a gas leak MPa MPa Is fan rotating End End 3 6 Water leaking 03 35 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 76: ...defect of compressor is con sidered Locked compressor due to clogged dirt or less oil Is gas pipe valve open Low pressure is too low Defective compressor can be considered due to inside dirt clogging or broken component Replace compressor Check if refrigerant is leaking MPa MPa Replace compressor End Check if strainer is clogged Refer to outdoor EEV in this chapter End Check main PCB connection of...

Page 77: ...PCB W402 W Compressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 910 Ω at 20 C R U C W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 37 4 Service par...

Page 78: ...ompressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 916 Ω 8 at 20 C R U C W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 38 4 Service parts informa...

Page 79: ...ompressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 916 Ω 8 at 20 C R U T W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 39 4 Service parts informa...

Page 80: ...normal replace EEV Check point 3 Check voltage from main PCB Remove connector and check voltage DC 12 V If it does not appear replace main PCB Check point 4 Check noise at start up Turn on the power and check the operation noise If an abnormal noise does not show replace main PCB Check point 5 Check opening and closing operation of valve When valve is closed it has a temp difference between inlet ...

Page 81: ...let and outlet as shown be low Pipe In Pipe Out If there is a difference like shown below there is a possibility of inside clogged In this case replace the strainer Pipe In Pipe Out 4 3 Outdoor unit Electronic Expansion Valve EEV 03 41 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 82: ...e short circuited below 300 kΩ replace indoor fan motor and controller PCB Upper fan motor Pin number wire color Terminal function symbol 1 Blue Revolution pulse PG 2 Yellow Speed command Vsp 3 White Control voltage Vcc 4 Black Earth terminal GND 5 No function 6 Red DC voltage Vm Lower fan motor Pin number wire color Terminal function symbol 1 Blue Revolution pulse PG 2 Yellow Speed command Vsp 3 ...

Page 83: ...door fan motor Refer to below Circuit test Vm and GND terminal NOTE Vm DC voltage GND Earth terminal If they are short circuited below 300 kΩ replace outdoor fan motor and controller PCB Pin number wire color Terminal function symbol 1 Red DC voltage Vm 2 No function 3 No function 4 Black Earth terminal GND 5 White Control voltage Vcc 6 Yellow Speed command Vsp 7 Brown or Blue Feed back FG 4 5 Out...

Page 84: ... 3 49 Heat exchanger temperature thermistor Temperature C Resistance kΩ Voltage V 30 0 1 131 91 0 21 25 0 804 52 0 29 20 0 579 59 0 40 15 0 422 89 0 53 10 0 312 27 0 69 5 0 233 21 0 88 0 0 176 03 1 10 5 0 134 23 1 36 10 0 103 34 1 63 15 0 80 28 1 92 20 0 62 91 2 21 25 0 49 70 2 51 30 0 39 57 2 79 35 0 31 74 3 06 40 0 25 64 3 30 45 0 20 85 3 53 50 0 17 06 3 73 55 0 14 05 3 90 60 0 11 64 4 02 65 0 9...

Page 85: ...0 57 15 0 78 56 0 71 20 0 62 14 0 87 25 0 49 54 1 04 30 0 39 79 1 23 35 0 32 19 1 44 40 0 26 22 1 66 45 0 21 49 1 88 50 0 17 73 2 12 55 0 14 71 2 35 60 0 12 27 2 57 65 0 10 29 2 79 70 0 8 68 3 00 75 0 7 35 3 19 80 0 6 26 3 38 85 0 5 35 3 54 90 0 4 59 3 69 95 0 3 96 3 83 100 0 3 43 3 96 105 0 2 98 4 07 110 0 2 60 4 17 115 0 2 28 4 26 120 0 2 00 4 33 5 2 Outdoor unit 03 45 5 Thermistor resistance va...

Page 86: ... 3 68 55 0 1 42 3 85 60 0 1 19 4 00 65 0 1 00 4 13 70 0 0 84 4 25 75 0 0 71 4 35 80 0 0 61 4 43 Outdoor temperature thermistor Temperature C Resistance kΩ Voltage V 30 0 224 33 0 73 25 0 159 71 0 97 20 0 115 24 1 25 15 0 84 21 1 56 10 0 62 28 1 90 5 0 46 58 2 26 0 0 35 21 2 61 5 0 26 88 2 94 10 0 20 72 3 25 15 0 16 12 3 52 20 0 12 64 3 76 25 0 10 00 3 97 30 0 7 97 4 14 35 0 6 40 4 28 40 0 5 18 4 4...

Page 87: ...4 CONTROL AND FUNCTIONS 2020 11 11 SR_CH04_AG002EF_01 ...

Page 88: ... operation stopped 04 24 7 Various control 04 25 7 1 Auto restart 04 25 7 2 MANUAL AUTO operation 04 25 7 3 Forced cooling operation 04 26 7 4 10 C HEAT operation 04 26 7 5 ECONOMY operation 04 26 7 6 POWERFUL operation 04 27 7 7 Fresh air control 04 27 7 8 Compressor preheating 04 27 7 9 Electronic expansion valve control 04 28 7 10 Prevention to restart for 3 minutes 3 minutes st 04 28 7 11 4 wa...

Page 89: ...erature is within the range of 6 0 C to 1 0 C of the setting temperature the compressor frequency is controlled within the range shown in the table below However the maxi mum frequency is limited in the range shown in the figure below based on the indoor fan mode and the outdoor temperature Compressor frequency range Model name Minimum frequency Maximum frequency AGYG09KVCB 8 rps 94 rps AGYG12KVCB...

Page 90: ...28 24 20 F zone 36 28 24 20 AGYG12KVCB A zone 102 46 36 28 B zone 102 46 36 28 C zone 80 36 28 18 D zone 39 26 20 16 E zone 39 26 20 16 F zone 39 26 20 16 AGYG14KVCB A zone 102 50 39 28 B zone 102 50 39 28 C zone 80 42 28 18 D zone 39 26 20 16 E zone 39 26 20 16 F zone 39 26 20 16 1 1 Cooling operation 04 2 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 91: ...e compressor frequency is controlled within the range shown below Compressor frequency range Model name Minimum frequency Maximum frequency AGYG09KVCB 8 120 AGYG12KVCB AGYG14KVCB 10 130 Limit of maximum speed based on outdoor temperature In heating operation maximum frequency is defined by outdoor temperature and fan mode A zone 12 C B zone 14 C C zone 10 C 12 C Outdoor temperature rises Outdoor t...

Page 92: ...erature Compressor frequency range Unit rps Model name Outdoor temperature zone Operating frequency AGYG09KVCB X zone 30 J zone 20 Y zone 0 AGYG12KVCB X zone 26 J zone 18 Y zone 0 AGYG14KVCB X zone 22 J zone 18 Y zone 0 Compressor control based on room temperature Ts 0 5 C Ts 1 5 C Ts 0 5 C Ts 1 5 C X zone J zone Y zone Room temperature drops Room temperature rises Ts Set temperature 1 3 Dry opera...

Page 93: ...ime sec 1 2 3 4 5 60 240 280 360 400 Models AOYG12KVCBN and AOYG14KVCBN Compressor frequency soon after starting is controlled as below Frequency I Frequency II Frequency III Frequency IV Frequency V Frequency VI Time 1 Time 2 Time 3 Time 4 Time 5 Time 6 Frequency rps I II III IV V VI 35 52 64 71 89 97 Time sec 1 2 3 4 5 6 60 140 170 200 350 410 1 4 Compressor frequency at normal start up 04 5 1 C...

Page 94: ...one 1 rps E zone 1 rps F zone 22 rps AOYG12KVCBN AOYG14KVCBN A zone 26 rps B zone 26 rps C zone 26 rps D zone 1 rps E zone 1 rps F zone 22 rps Heating mode F zone 19 C E zone 5 C D zone 0 C C zone B zone A zone 15 C 25 C Model name Outdoor temperature zone Limitation of compressor frequency AOYG09KVCBN AOYG12KVCBN AOYG14KVCBN A zone 39 rps B zone 39 rps C zone 17 rps D zone 10 rps E zone 1 rps F z...

Page 95: ...dle zone indoor unit operation mode is selected as below Same operation mode is selected as outdoor unit If outdoor unit is operating in cooling and heating mode indoor unit will be operated by the same operation mode Selected by outdoor temperature If outdoor unit is operating in other than cooling and heating mode indoor unit will be op erated according to the outdoor temperature as below Outdoo...

Page 96: ...ation Middle zone Operation mode of outdoor unit Cooling Outdoor temp 25 C Operation mode before the monitor mode is cooling mode Monitor mode Room temp Ts 2 C No Yes No Yes No Yes No Yes No No Operation mode of outdoor unit Heating Yes Yes No System stops or operation command other than auto changeover operation Yes No Yes No Thermostat remains in off state for 6 minutes or longer Yes No 04 8 2 A...

Page 97: ...HIGH 1 240 1 040 1 280 MED 1 040 880 1 080 MED 1 040 880 1 080 LOW 840 700 870 QUIET 660 560 680 Cool air prevention 660 560 680 S LOW 660 560 680 Cooling Fan POWERFUL 1 300 1 100 1 300 HIGH 1 190 1 000 1 230 MED 1 000 850 1 030 LOW 820 690 850 QUIET 660 560 680 Soft quiet 570 480 1 630 1 S LOW 660 560 2 680 2 Dry X zone J zone X zone 680 J zone 680 1 Fan mode only 2 Cooling mode only 3 1 Indoor f...

Page 98: ...X zone 680 J zone 680 1 Fan mode only 2 Cooling mode only Model AGYG14KVCB Operation mode Fan mode Upper Lower Speed rpm Upper Lower air flow mode Upper air flow mode Heating POWERFUL 1 440 1 230 1 440 HIGH 1 330 1 120 1 370 MED 1 100 930 1 130 MED 1 100 930 1 130 LOW 860 730 890 QUIET 660 560 680 Cool air prevention 660 560 680 S LOW 660 560 680 Cooling Fan POWERFUL 1 440 1 230 1 440 HIGH 1 330 1...

Page 99: ...MED mode LOW mode 2 C Tr Ts 1 C 1 C Tr Ts Tr Ts 2 5 C 2 5 C Tr Ts 1 5 C 1 5 C Tr Ts Dry operation During dry operation fan speed setting can not be changed as shown in Fan speed above Heating operation Switch the airflow AUTO and the indoor fan motor will run according to a room temperature as be low On the other hand if switched in HIGH QUIET the indoor motor will run at a constant airflow of HEA...

Page 100: ...oor heat exchanger temperature drops 39 C 37 C 30 C 34 C 31 C 29 C 24 C MED or setting fan mode LOW or setting fan mode Lower speed is selected 7 minutes later 42 C Indoor heat exchanger temperature rises HIGH or setting fan mode Indoor heat exchanger temperature drops 39 C 37 C 30 C 34 C 31 C 29 C 24 C MED or setting fan mode LOW or setting fan mode Lower speed is selected LOW or setting fan mode...

Page 101: ...30 C 34 C 31 C 29 C 24 C POWERFUL LOW LOW LOW 10 C HEAT operation Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops 39 C 31 C AUTO LOW Moisture return prevention control cooling and dry mode Switch the airflow AUTO at cooling mode and the indoor fan motor will run as shown below Compressor On Off Indoor fan setting airflow S LOW Off 10 30 60 180 60 180 60 10 30 sec In...

Page 102: ...ng Dry Cooling or dry at low outdoor temp Y zone Y zone Z zone F zone G zone S HIGH2 1 140 S HIGH1 1 050 1 140 HIGH 1 050 870 10 870 9 1 050 870 1 050 1 050 200 190 8 970 850 970 970 200 190 7 750 850 750 750 200 190 6 750 700 750 750 200 190 5 650 700 650 650 200 190 4 510 700 510 510 200 190 3 400 420 400 400 200 190 2 400 420 400 400 200 190 1 400 420 400 400 200 190 NOTE After defrost control ...

Page 103: ... zone S HIGH2 1 140 S HIGH1 1 050 1 140 HIGH 1 050 870 10 870 9 1 050 870 1 050 1 050 200 180 8 970 850 970 970 200 180 7 750 850 750 750 200 180 6 750 700 750 750 200 180 5 750 700 750 750 200 180 4 630 700 630 630 200 180 3 510 420 510 510 200 180 2 400 420 400 400 200 180 1 400 420 400 400 200 180 NOTE After defrost control on the heating mode the fan speed is kept higher regardless of the comp...

Page 104: ... zone S HIGH2 1 140 S HIGH1 1 050 1 140 HIGH 1 050 870 10 870 9 1 050 870 1 050 1 050 210 190 8 970 850 970 970 210 190 7 890 850 890 890 210 190 6 890 570 890 890 210 190 5 770 510 770 770 210 190 4 630 470 630 630 210 190 3 510 420 510 510 210 190 2 400 420 400 400 210 190 1 400 420 400 400 210 190 NOTE After defrost control on the heating mode the fan speed is kept higher regardless of the comp...

Page 105: ...ing will temporarily become 1 when the temperature of the airflow is low at the start of the Heating mode After beginning of AUTO HEAT mode operated and automatic defrosting operation the airflow will be horizontal 1 However the airflow direction cannot be adjusted at beginning AUTO operation mode 4 2 Swing operation To select vertical airflow swing operation When the swing signal is received the ...

Page 106: ...mer The program timer allows the off timer and the on timer to be used in combination one time Operation mode Stop mode Stop mode Stop mode Operation mode Operation mode Set time Set time Set time Set time Operation will start from the timer setting either off timer and on timer whichever is closest to the clock current timer setting The order of operations is indicated by the allow in the remote ...

Page 107: ...top of operation Ts 2 C Set 60 min 1 C In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decreases the setting temperature another 1 C every 30 minutes Upon lowering 4 C the setting temperature is not changed and the operation is stopped at the setting time Set Ts 2 C 1 C 3 C 4 C Ts Set temperature 30 min 30 min 30 min Stop of operation Set tempe...

Page 108: ...imer The program timer allows the off timer and the on timer to be used in combination one time Operation mode Stop mode Stop mode Stop mode Operation mode Operation mode Set time Set time Set time Set time Operation will start from the timer setting either off timer and on timer whichever is closest to the clock current timer setting The order of operations is indicated by the allow in the remote...

Page 109: ...Stop of operation Ts 2 C Set 60 min 1 C In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decreases the setting temperature another 1 C every 30 minutes Upon lowering 4 C the setting temperature is not changed and the operation is stopped at the setting time Set Ts 2 C 1 C 3 C 4 C Ts Set temperature 30 min 30 min 30 min Stop of operation Set temp...

Page 110: ...ner will operate at a minimum of 18 C even if the SET BACK temperature is set to 17 C or lower Case of SET BACK timer on the Cooling operation Setting temperature 22 C SET BACK temperature 26 C SET BACK setting Operation temperature Operation temperature 26 C 22 C 26 C 22 C 24 C 1 ON OFF OFF ON 1 During the SET BACK function the setting temperature is changed Chenge the setting temperature 22 C 24...

Page 111: ...10 5 deg Tn 6 C Tn Tnb 2 deg Tn 6 C Tn 17 C Ta 10 C Tn Ta 7 C or Tn 30 C Ta 10 C Integrating defrost Constant monitoring Compressor integrating operation time More than 240 min For long continuous operation More than 213 min For long continuous operation Less than 10 min For intermittent operation Condition Tn 3 C Tn 5 C Count of the compressor off 40 times If the compressor continuous operation t...

Page 112: ...nditions are satisfied in heating operation Compressor operation integrating time 30 minutes or more Compressor continuous operation time 10 minutes or more Outdoor unit heat exchanger temperature 4 C or less Release condition The defrost operation is released when either one of the conditions below is satisfied Outdoor unit heat exchanger temperature after 1 minute or later since compressor start...

Page 113: ...ion 10 C HEAT operation Outdoor low noise operation 7 2 MANUAL AUTO operation When the wireless remote controller is lost or battery power dissipated this function will work without the remote controller When MANUAL AUTO button is pressed more than 3 seconds and less than 10 seconds MANUAL AUTO operation starts as shown in the table below To stop operation press the MANUAL AUTO button for 3 second...

Page 114: ...action test operation will be canceled Pressing the remote controller START STOP button Pressing FORCED COOLING OPERATION button for 3 seconds 60 minutes passed after starting forced cooling operation NOTE When HEAT operation is selected on the remote controller during forced cooling operation heating test run will begin in about 3 minutes 7 4 10 C HEAT operation 10 C HEAT operation performs as be...

Page 115: ...ng temperature 1 5 C or Operation time has passed 20 minutes 7 7 Fresh air control The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as below Operation Stop Operation Stop Fan motor Indoor unit Fan motor for Fresh Air 7 8 Compressor preheating By preheating the compressor warm airflow is quickly discharged when the operation is started Triggering condition 30...

Page 116: ...50 Retry set number 3 When the compressor fails to start in the retry set number above the compressor is stopped 7 11 4 way valve control If heating mode is selected at the compressor start 4 way valve is energized for heating When the air conditioner is switched between cooling and heating mode compressor is stopped and the 4 way valve is switched when the 140 seconds passes and the compressor is...

Page 117: ...s stopped and the indoor unit LED starts blinking Trigger condition 104 C Compressor frequency 20 rps 120 seconds Release condition 101 C Compressor protection temperature 110 C 8 2 Anti freezing control cooling and dry mode The compressor frequency is decrease in cooling and dry mode when the indoor unit heat exchang er temperature sensor detects the temperature lower than the trigger condition W...

Page 118: ...g 17 C Ta 7 0 A 6 5 A 12 C Ta 17 C 9 0 A 8 5 A 5 C Ta 12 C 9 0 A 8 5 A Ta 5 C 9 0 A 8 5 A Models AOYG12KVCBN and AOYG14KVCBN Operation mode Outdoor temp Ta Trigger condition Release condition Cooling 50 C Ta 4 5 A 4 0 A 46 C Ta 50 C 4 5 A 4 0 A 40 C Ta 46 C 6 0 A 5 5 A 12 C Ta 40 C 10 0A 9 5 A 2 C Ta 12 C 10 0 A 9 5 A Ta 2 C 10 0 A 9 5 A Heating 17 C Ta 7 0 A 6 5 A 12 C Ta 17 C 9 0 A 8 5 A 5 C Ta ...

Page 119: ...tion 10 C 15 C 8 7 High temperature and high pressure release control The compressor is controlled as follows Models AOYG09KVCBN AOYG12KVCBN and AOYG14KVCBN Indoor unit heat exchanger temperature rises Indoor unit heat exchanger temperature drops Stable zone AB BC CD DE Zone A Zone B Zone C Zone D Zone E AB 63 C BC 55 C CD 53 C DE 50 C Zone Operation Zone A Compressor is stopped Zone B The compres...

Page 120: ...8 7 High temperature and high pressure release control 04 32 8 Various protections CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 121: ...5 FILED WORKING 2020 11 11 SR_CH05_AG002EF_01 ...

Page 122: ...CONTENTS 5 FILED WORKING 1 Function settings 05 1 1 1 Function settings by using remote controller 05 1 1 2 Custom code setting for wireless remote controller 05 7 ...

Page 123: ... changed if invalid numbers or setting values are selected When optional wired remote controller is used refer to the installation manual enclosed with the remote controller Entering function setting mode While pressing the POWERFUL button and TEMP button simulta neously press the RESET button to enter the function setting mode Function number Setting value Selecting the function number and settin...

Page 124: ...it fan control for energy saving for cooling 12 60 Switching functions for external output terminal 1 Remote controller address setting Multiple indoor units can be operated by using one wired remote controller Set the unit number of each indoor unit Function number Setting value Setting description Factory setting 00 00 Unit no 0 01 Unit no 1 02 Unit no 2 03 Unit no 3 04 Unit no 4 05 Unit no 5 06...

Page 125: ...ed environment correction of the room temperature sensor may be re quired Select the appropriate control setting according to the installed environment The temperature of the room temperature sensor is corrected as follows Corrected temp Temp of the room temp sensor Correction temp value Example of correction When the temperature of the room temp sensor is 26 C and the setting value is 03 1 0 C co...

Page 126: ... C 6 Auto restart Enables or disables automatic restart after a power interruption Function number Setting value Setting description Factory setting 40 00 Enable 01 Disable NOTE Auto restart is an emergency function such as for power outage etc Do not attempt to use this function in normal operation Be sure to operate the unit by remote controller or exter nal device 7 Room temperature sensor swit...

Page 127: ...gy saving for cooling Enables or disables the power saving function by controlling the indoor unit fan rotation when the outdoor unit is stopped during cooling operation Function number Setting value Setting description Factory setting 49 00 Disable 01 Enable 02 Remote controller 00 When the outdoor unit is stopped the indoor unit fan operates continuously following the setting on the remote contr...

Page 128: ... refer to External input and output Function number Setting value Setting description Factory setting 60 00 Operation status 01 08 Setting prohibited 09 Error status 10 Indoor unit fan operation status 11 External heater 1 1 Function settings by using remote controller 05 6 1 Function settings FIELD WORKING FIELD WORKING ...

Page 129: ...ss the START STOP button until only the clock is displayed on the remote controller display 2 Press the MODE button for at least 5 seconds to display the current custom code Initially set to 3 Press the TEMP buttons to change the custom code be tween Match the code on the display to the air condi tioner custom code Initially set to 4 Press the MODE button again to return to the clock display The c...

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