Fujitsu ADUH09LUAS1 Service Manual Download Page 49

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3. TROUBLESHOOTING

2021.04.26

SR_CH03_AR030EF_01

Summary of Contents for ADUH09LUAS1

Page 1: ...AIR CONDITIONER Duct type SERVICE MANUAL INDOOR ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 OUTDOOR AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 SR_AR030EF_02 2021 04 26 ...

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 2021 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 2021 04 02 SR_CH01_AR030EF_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 8 ...

Page 7: ... 3 4 2 2 0 Maximum operating current 1 Cooling A 6 8 9 8 11 8 Heating 9 3 11 3 14 8 Fan Airflow rate Cooling HIGH CFM m3 h 353 600 383 650 553 940 MED 324 550 353 600 518 880 LO 294 500 324 550 482 820 QUIET 265 450 283 480 441 750 Heating HIGH 353 600 383 650 553 940 MED 324 550 353 600 518 880 LO 294 500 324 550 482 820 QUIET 265 450 283 480 441 750 Type Q ty Sirocco 2 Sirocco 3 Motor output 81 ...

Page 8: ... Between outdoor unit and indoor unit Protective function might work when using it outside the operation range 1 Maximum current The maximum value when operated within the operation range The total current of indoor unit and outdoor unit 2 Sound pressure level Measured values in manufacturer s anechoic chamber Because of the surrounding sound environment the sound levels measured in actual install...

Page 9: ... 21 5 16 31 7 16 11 7 16 542 799 290 24 7 8 31 7 16 11 7 16 632 799 290 Gross 23 11 16 37 14 3 4 602 940 375 27 1 4 37 14 3 4 692 940 375 eight Net lb kg 70 32 84 38 86 39 Gross 77 35 95 43 Connection pipe Size Liquid in mm Ø 1 4 Ø 6 35 Gas Ø 3 8 Ø 9 52 Ø 1 2 Ø 12 7 Method Flare Pre charge length ft m 49 15 66 20 Max length 66 20 98 30 Max height difference 49 15 Operation range Cooling F C 14 to ...

Page 10: ... 16 100 x 6 23 5 8 600 3 7 32 82 1 7 8 48 25 9 16 650 28 7 8 734 1 3 16 30 14 13 16 377 6 7 16 163 4 11 16 119 3 1 2 89 3 1 16 78 2 3 16 55 1 7 8 47 3 8 10 24 7 16 620 14 5 8 371 10 3 8 264 5 11 16 144 2 11 16 69 25 9 16 650 26 1 8 664 27 9 16 700 1 11 16 43 1 1 4 31 7 13 16 198 6 5 8 168 5 15 16 151 3 1 16 78 2 3 16 55 2 1 Indoor unit 01 4 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 11: ...6 850 36 3 4 934 3 15 16 100 8 31 1 2 800 1 3 16 30 14 13 16 377 6 7 16 163 4 11 16 119 3 1 2 89 3 1 16 78 2 3 16 55 1 7 8 47 3 8 10 24 7 16 620 14 5 8 371 10 3 8 264 5 11 16 144 2 11 16 69 33 7 16 850 34 864 35 7 16 900 1 11 16 43 1 1 4 31 7 13 16 198 6 5 8 168 5 15 16 151 3 1 16 78 2 3 16 55 A 2 1 Indoor unit 01 5 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 12: ...n mm Indoor unit In wall concealed installations 1 10 or less 1 10 or less Left side Strong and durable floor Right side PIPE side Grille Inlet air Strong and durable floor 6 150 or more 4 100 or more 12 300 or more 1 20 or more 1 20 or more 6 150 or more Unit in mm Left side Strong and durable floor Right side PIPE side Duct Grille Inlet air Strong and durable floor 6 150 or more 4 100 or more 12...

Page 13: ... maintenance space NOTE Do not place any wiring or illumination in the maintenance space as they will impede ser vice Service access Unit Control box or more Service space 12 300 12 300 or more 4 100 or more Unit in mm 2 1 Indoor unit 01 7 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 14: ...n 4 M10 hole 31 7 16 799 2 11 16 68 1 5 16 33 1 3 16 30 3 4 19 21 5 16 542 13 16 20 Side view Side view Front view 11 7 16 290 1 2 13 Unit in mm Bottom view Airflow Drain port Ø1 5 8 42 Side view Valve part 4 3 4 120 4 1 4 184 7 1 16 180 1 7 16 37 15 11 16 399 Hole Hole Hole 2 2 Outdoor unit 01 8 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 15: ...1 3 16 30 4 5 16 109 13 7 8 353 24 7 8 632 13 16 20 13 330 Pitch of bolts for installation Pitch of bolts for installation 4 M10 hole Unit in mm Side view Valve part 4 3 4 120 4 1 4 184 7 1 16 180 Bottom view Airflow Drain port Ø1 5 8 42 1 7 16 37 15 11 16 399 Hole Hole Hole 2 2 Outdoor unit 01 9 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 16: ...2 2 Outdoor unit 01 10 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 17: ...2 TECHNICAL DATA AND PARTS LIST 2021 04 02 SR_CH02_AR030EF_01 ...

Page 18: ...UAS1 02 14 4 Accessories 02 18 4 1 Indoor unit 02 18 4 2 Outdoor unit 02 18 5 Optional parts 02 19 5 1 Indoor unit 02 19 6 Refrigerant system diagrams 02 22 6 1 Models AOUH09LUAS1 02 22 6 2 Models AOUH12LUAS1 and AOUH18LUAS1 02 23 7 Wiring diagrams 02 24 7 1 Indoor unit 02 24 7 2 Outdoor unit 02 25 8 PC board diagrams 02 27 8 1 Models ADUH09LUAS1 ADUH12LUAS1 and ADUH18LUAS1 02 27 8 2 Models AOUH09...

Page 19: ...commended by the manufacturer ork ork in confined spaces shall be avoided The area around the workspace shall be sectioned off Electric shock may occur After turning off the power always wait 5 minutes before touching electrical components Do not touch the fins of the heat exchanger Touching the heat exchanger fins could result in damage to the fins or personal injury such as skin rupture Do not p...

Page 20: ... 2 1 Models ADUH09LUAS1 and ADUH12LUAS1 Exterior parts and chassis 1 2 3 5 6 4 7 8 10 9 11 12 13 2 1 Models ADUH09LUAS1 and ADUH12LUAS1 02 2 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 21: ...y 6 9379576017 Valve cover sub assy 7 9379900003 Pipe panel sub assy 8 9379907019 Side panel L sub assy 9 9379915007 indow panel sub assy 10 9380589006 Fan guard 2 fan 11 9379897006 Air filter sub assy 12 9379906012 Side panel R sub assy 13 9379901161 Drain pan sub assy 2 1 Models ADUH09LUAS1 and ADUH12LUAS1 02 3 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 22: ... Fan and PC boards 50 51 52 55 64 65 66 57 53 54 58 59 60 63 61 62 56 2 1 Models ADUH09LUAS1 and ADUH12LUAS1 02 4 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 23: ...900349035 Thermistor Pipe 63 9379908030 Top panel sub assy 64 9379571012 Casing U 65 9379644006 Vibration proof rubber assy 66 9379047159 Motor sub assy 9710177057 ire with connector CN46 on Main PCB Terminal 5P External input 9710171055 ire with connector CN260 on Main PCB CN262 on Power supply PCB 9710206047 ire with connector CN261 on Main PCB CN263 on Power supply PCB 9710343094 ire with conne...

Page 24: ...2 2 Model ADUH18LUAS1 External parts and chassis 11 2 1 3 4 5 6 7 8 9 10 12 13 2 2 Model ADUH18LUAS1 02 6 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 25: ...otal assy 6 9379576017 Valve cover sub assy 7 9379900003 Pipe panel sub assy 8 9379907019 Side panel L sub assy 9 9379915007 indow panel sub assy 10 9380590002 Fan guard 3 fan 11 9379897013 Air filter sub assy 12 9379906012 Side panel R sub assy 13 9379901178 Drain pan sub assy 2 2 Model ADUH18LUAS1 02 7 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 26: ... Fan and PC boards 62 50 51 52 53 54 55 56 57 58 59 60 61 63 64 65 66 68 69 70 69 67 2 2 Model ADUH18LUAS1 02 8 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 27: ...1012 Casing U 65 9379644006 Vibration proof rubber assy 66 9379047142 Motor sub assy 67 9379971065 Sirocco fan sub assy 68 9378038011 Joint assy 69 9379570039 Sirocco fan assy 70 9381052004 Shaft assy 9710177057 ire with connector CN46 on Main PCB Terminal 5P External input 9710171055 ire with connector CN260 on Main PCB CN262 on Power supply PCB 9710206047 ire with connector CN261 on Main PCB CN2...

Page 28: ...3 1 Model AOUH09LUAS1 Exterior parts and chassis 3 1 2 13 15 19 20 18 22 23 24 16 21 8 4 9 10 14 11 12 17 a 7 5 6 3 1 Model AOUH09LUAS1 02 10 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 29: ...emp 11 9384912008 Heat sink 12 9900583019 Reactor assy 13 9322552259 Cabinet right assy 14 9384268006 Conduit cover 15 9322570055 Switch cover assy 16 9383720000 Drain cap assy 17 9322144003 Drain pipe 18 9323550025 Base assy 19 9317903011 Emblem 20 9322555199 Front panel assy 21 9384265005 Fan guard 22 9322136008 Propeller fan 23 9603553005 DC fan motor 24 9322553010 Motor bracket assy 9711555007...

Page 30: ... Compressor 50 51 52 53 54 55 a 56 b A A 60 59 58 57 3 1 Model AOUH09LUAS1 02 12 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ...coil 54 9322463029 Pulse motor valve assy 55 9322474001 2 way valve assy 56 9322475008 3 way valve assy 57 9324024006 S insulator B 58 9322536020 S insulator F 59 9322537003 S insulator H 60 9323045002 S insulator V a Valve bracket b Muffler 3 1 Model AOUH09LUAS1 02 13 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 32: ...18LUAS1 Exterior parts and chassis 17 18 20 21 23 25 24 19 15 14 13 22 16 3 2 4 1 a 5 6 8 12 11 10 9 7 3 2 Models AOUH12LUAS1 and AOUH18LUAS1 02 14 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 33: ...assy Compressor temp 11 9900565060 Thermistor assy Outdoor temp 12 9322420046 Heat sink 13 9322552242 Cabinet right assy 14 9384276001 Conduit cover 15 9322570062 Switch cover assy 16 9810028006 Thermistor stopper 17 9383720000 Drain cap assy 18 9322144003 Drain pipe 19 9323550025 Base assy 20 9317903011 Emblem 21 9322555182 Front panel assy 22 9384273000 Fan Guard 23 9322150004 Propeller fan 24 9...

Page 34: ... Compressor A B 51 52 53 54 55 56 57 58 59 60 61 a b 50 A 3 2 Models AOUH12LUAS1 and AOUH18LUAS1 02 16 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 35: ...e motor valve assy 55 9322474001 2 way valve assy 56 9322850010 3 way valve assy 12 model 9387831016 3 way valve assy 18 model 57 9322824004 S insulator K 58 9323045002 S insulator V 59 9322501004 S insulator H 60 9322847003 S insulator F 61 9324014014 S insulator B a Valve bracket b Muffler 3 2 Models AOUH12LUAS1 and AOUH18LUAS1 02 17 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNI...

Page 36: ...odels 2 asher 8 Filter large For 18 models 2 Drain hose Ø3 4 in I D Ø1 1 16 in O D 1 Coupler heat insulation large 1 Hose band 1 Coupler heat insulation small 1 Drain hose insulation B 1 4 2 Outdoor unit Models AOUH09LUAS1 AOUH12LUAS1 and AOUH18LUAS1 Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Cable tie 2 Drain pipe 1 Drain cap 5 4 1 Indoor unit 02 18 4 Accessories TECHNI...

Page 37: ...ler concentrates on the basic functions such as Start Stop fan control temperature setting and operation mode ire type Non polar 2 wire Simple remote controller UTY RHRY Compact remote controller concentrates on the basic functions such as Start Stop fan control and temperature setting ire type Non polar 2 wire IR receiver kit with wireless remote controller UTY LBTUM Unit control is performed by ...

Page 38: ...output port External input and output PCB UTY CS Use to connect with external devices and air conditioner PCB External input and output PCB box UTZ G EA For installing the External input and output PCB ireless LAN adapter UTY TFS Z2 Remotely manage an air conditioning system using mobile devices such as smartphones and tablets For connection indoor unit with UART interface Modbus converter UTY VMS...

Page 39: ...mostat converter UTY TTR This converter can control Fujitsu General products using a third party thermostat controller External switch controller UTY TER Air conditioner switching can be controlled by connecting other external sensor switches 5 1 Indoor unit 02 21 5 Optional parts TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 40: ... Heating ThD ThR ThPI ThO ThHO Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Heat exchanger out temperature ThD ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI Muffler ThHM Thermistor Heat exchanger middle temperature ThHM 6 1 Models AOUH09LUAS1 02 22 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 41: ...tor ThPI ThC Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Heat exchanger out temperature ThD Thermistor Compressor temperature ThC ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI ThHM Thermistor Heat exchanger middle temperature ThHM 6 2 Models AOUH12LUAS1 and AOUH18LUAS1 02 23 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHN...

Page 42: ...7 Wiring diagrams 7 1 Indoor unit Models ADUH09LUAS1 ADUH12LUAS1 and ADUH18LUAS1 7 1 Indoor unit 02 24 7 iring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 43: ...7 2 Outdoor unit Model AOUH09LUAS1 7 2 Outdoor unit 02 25 7 iring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 44: ... Models AOUH12LUAS1 and AOUH18LUAS1 7 2 Outdoor unit 02 26 7 iring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 45: ... WHITE CN65 B04B PASK 1 WHITE CN75 B04B PAKK 1 BLACK CN300 B03B XNISK A 1 WHITE CN46 B3B XH AM WHITE CN47 B02B PASK 1 WHITE CN261 B10B PLIRK 1 RED CN260 B04B XNISK A 1 WHITE CN700 B12B PASK 1 WHITE CN11 B05B XASK 1 A WHITE EMI FILTER ZCAT 1518 0730 2 TURNS DC FAN MOTOR AC DRAIN PUMP TEST THERMISTOR ROOM TEMP THERMISTOR PIPE MID TEMP FLOAT SWITCH CN1 1 CN1 2 CN1 3 CN1 4 CN1 5 CN1 6 CN1 7 CN1 8 CN1 ...

Page 46: ...8 1 3 4 5 6 Pin No Terminal code Vm GND Vcc Vsp FG Function of terminal Revolution pulse output Speed control voltage input Control power voltage input GND Motor power voltage input Lead wire color Red Black White Yellow Brown 2 7 P650 DC Fan Motor MAIN PCB 09 model H09LBTA U A01 00 SV INVERTER ASSEMBLY 09 model EZ 0200WHUE 1 Red 3 Blue 1 Red 4 Orange 1 Red 5 Yellow 1 Red 6 White P30 Expansion Val...

Page 47: ...f terminal Revolution pulse output Speed control voltage input Control power voltage input GND Motor power voltage input Lead wire color Red Black White Yellow Brown 2 7 P650 DC Fan Motor MAIN PCB 12 model H12LBTA U A01 00 SV 18 model H18LBTA U A01 00 SV INVERTER ASSEMBLY 12 model EZ 0200HHUE 18 model EZ 0200YHUE 1 Red 3 Blue 1 Red 4 Orange 1 Red 5 Yellow 1 Red 6 White P30 Expansion Valve Coil 46 ...

Page 48: ...8 3 Models AOUH12LUAS1 and AOUH18LUAS1 02 30 8 PC board diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 49: ...3 TROUBLESHOOTING 2021 04 26 SR_CH03_AR030EF_01 ...

Page 50: ... E 41 Room temperature sensor error Indoor unit 03 16 2 13 E 42 Indoor unit heat exchanger sensor error Indoor unit 03 17 2 14 E 51 Indoor unit fan motor error Indoor unit 03 18 2 15 E 53 Drain pump error Indoor unit 03 19 2 16 E 62 Outdoor unit main PCB error Outdoor unit 03 20 2 17 E 63 Inverter error Outdoor unit 03 21 2 18 E 64 PFC circuit error Outdoor unit 03 22 2 19 E 65 IPM error Outdoor u...

Page 51: ... 4 3 Outdoor unit Electronic Expansion Valve EEV 03 47 4 4 Indoor unit fan motor 03 49 4 5 Outdoor unit fan motor 03 50 4 6 IPM on transistor PCB 03 52 5 Thermistor resistance values 03 54 5 1 Indoor unit 03 54 5 2 Outdoor unit 03 55 CONTENTS continued ...

Page 52: ......

Page 53: ...ized error is only displayed during the 3 min utes ST state period Start the operation and then press the TEST RUN button on the remote controller Press the MANUAL AUTO button on the indoor unit for 10 seconds or more Error memory display 2 minutes 20 seconds Starting operation and then Press TEST RUN button on the remote controller or Press MANUAL AUTO button on the indoor unit for 10 seconds or ...

Page 54: ...or unit power supply error for fan motor Indoor unit 39 E 3A Indoor unit communication circuit wired remote controller error 3A E 41 Room temperature sensor error Indoor unit 41 E 42 Indoor unit heat exchanger sensor error Indoor unit 42 E 51 Indoor unit fan motor error Indoor unit 51 E 53 Drain pump error Indoor unit 53 E 62 Outdoor unit main PCB error Outdoor unit 62 E 63 Inverter error Outdoor ...

Page 55: ... 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 installation manual or the DESIGN TECHNICAL...

Page 56: ...43 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 Se...

Page 57: ...o 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 the voltage of power supply Check the voltag...

Page 58: ...f 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 6 2 Troubleshooting with error code...

Page 59: ...r and main PCB If it is DC 13 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 main PCB Check voltage at CN300 terminal 1 3 terminal 1 2 of main PCB Power supply to the remote controller Upon correcting the removed connec tor or mis wiring reset the power End Check Point 2 ire installation wrong ...

Page 60: ...ain PCB to the external input and out put PCB If there is an abnormal condition correct it by refer to the installation manual or the DESIGN TECHNICAL MANUAL Check the connection condition on the external input and output PCB and the main PCB If there is loose connector open cable or mis wiring Check point 2 Replace the external input and output PCB If check point 1 do not improve the symptom chan...

Page 61: ...i type Forecast of cause Incorrect indoor unit is selected Check point 1 Check the type of indoor unit Check the type of the connected indoor unit If there is an abnormal condition correct it by refer to the installation manual or the DESIGN TECHNICAL MANAL Check point 2 Replace main PCB If check point 1 do not improve the symptom replace main PCB of the outdoor unit End 2 5 E 23 Combination error...

Page 62: ...roller group For installation method refer to in stallation manual If there is an abnormal condition correct it by refer to the installation manual or the DESIGN TECHNICAL MANUAL Check point 2 rong remote controller group setting The given address number by auto setting 00 and the manual set number except 00 are not existing in one remote controller group The remote controller address setting by U...

Page 63: ...r remote controller in remote controller group Indoor unit main PCB failure Check point 1 ire installation rong number of connected indoor unit If there is an abnormal condition correct it by refer to the installation manual or the DESIGN TECHNICAL MANUAL Check point 2 Check indoor unit main PCB Check if main PCB is damaged Change main PCB and check the error after setting remote controller addres...

Page 64: ...k 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 Read Only Memory is a non volatile memory which...

Page 65: ...ng is abnormal replace it Check point 2 Check ambient temperature around the 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 motor Refer to indoor unit fan motor in Service parts information on page 03 43 If indoor unit ...

Page 66: ... 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 2 Check connection of Connector Check if connector is removed Check erroneous connection Check if cable is open Upon correcting th...

Page 67: ...n PCB defective Check point 1 Check the connection of terminal After turning off the power supply check and correct the followings Indoor unit Check the connection the communication PCB and the main PCB Check Point 2 Replace the communication PCB If the Check point 1 is ok replace the communication PCB Check Point 3 Replace the main PCB If condition is doesn t change replace the main PCB End 2 11 ...

Page 68: ...onnector 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 54 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 terminal voltage at thermis tor DC 5 0 V N...

Page 69: ...o 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 54 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 terminal voltage at ...

Page 70: ...n 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 motor Refer to indoor unit fan motor in Serv...

Page 71: ... ON OFF switching operation by using a meter If float switch is abnormal replace it Check point 2 Check connector and wire Check loose contact of CN9 and shorted wire pinched wire Replace float switch if the wire is abnormal Check point 3 Check drain hose Check drain hose If there is hose clogging Please clear the clog Check point 4 Replace drain pump If check point 1 to 3 do not improve the sympt...

Page 72: ...k 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 near the power line End 2 16 E 62 Outdoor unit...

Page 73: ...point 1 2 Error displayed again Check point 2 Check the wiring power supply to inverter PCB Connector and wiring connection state check Cable open check Check point 3 Replace inverter PCB Replace inverter PCB End Check point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no re...

Page 74: ...us 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 2 Check connection of Connector Check if connector is removed Check erroneo...

Page 75: ...t 1 Check connections of outdoor unit electrical components Check if the terminal connection is loose Check if connector is removed Check erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power Check point 2 Check outdoor fan and heat exchanger Is there anything obstructing the air distribution circuit Is there any clogging of outdoor heat ex...

Page 76: ...to inverter compressor in Service parts information Check point 5 Replace main PCB If Check point 1 to 4 do not improve the symptom change main PCB End 2 19 E 65 IPM error Outdoor unit 03 24 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 77: ...einstalling 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 54 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 outdoor unit and check t...

Page 78: ...talling 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 54 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 outdoor unit and chec...

Page 79: ...ling 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 54 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 outdoor unit and check terminal ...

Page 80: ...r 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 there is a large load electric apparatus in th...

Page 81: ...ent 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 point 2 Replace main PCB If Check point 1 do...

Page 82: ...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 information on page 03 43 Upon correcting the ...

Page 83: ...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 information on page 03 43 If outdoor unit fan motor is abnormal repl...

Page 84: ...ature thermistor 4 way valve Forecast of cause Connector connection failure Thermistor failure Coil failure 4 way valve failure Main PCB failure Check point 1 Check connection of connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check point 2 Check each thermistor Isn t it fallen ...

Page 85: ...temperature difference If the value location is not proper replace 4 way valve Check point 4 Check the voltage of 4 way valve Check the voltage P60 of Main PCB Check if AC 198 V AC 220 V 10 to AC 264 V AC 240 V 10 appears at P60 of Main PCB Heating operation If it is not voltage Replace Main PCB Cooling operation If it is voltage Replace Main PCB Check point 5 Replace main PCB If Check Point 1 to ...

Page 86: ...y 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 43 Check the strainer clogging Check point 3 Check the outdoor unit fan and heat exchanger Check for foreign object at heat exchanger Check if fan can be ...

Page 87: ...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 28 E A1 Discharge temperature error Outdoor unit 03 35 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 88: ...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 198 to 264 V appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse in fi...

Page 89: ... 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 198 to 264 V appears at outdoor unit terminal L N If no go to C...

Page 90: ... 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 contro...

Page 91: ...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 92: ...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 40 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 93: ...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 94: ... 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 ater leaking 03 42 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 95: ...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 96: ...ion of main PCB loose or incorrect wiring Main 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 1 975 7 Ω at 77 F 25 C R U C W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor 4 2 Inverter compressor 03 44 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 97: ...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 45 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 98: ...ed Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 916 8 Ω at 68 F 20 C C S R 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 46 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 99: ...abnormal 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 hen valve is closed it has a temp difference between inlet...

Page 100: ...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 48 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 101: ...tor 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 indoor fan motor and controller PCB Pin number wire color Terminal function symbol 1 DC voltage 4 Earth terminal 1 Red DC voltage Vm 2 No function 3 No function 4 Black Ground terminal GND 5 hite Control voltage Vcc 6 Yellow Speed command Vsp 7 Brown Feed back ...

Page 102: ...otor 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 hite Control voltage Vcc 6 Yellow Speed command Vsp 7 Brown Feed back FG 4 5 Outdoor unit fan motor...

Page 103: ...rcuit 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 main PCB 1 4 5 6 7 Red Black White Yellow Brown FM Pin number wire color Terminal function symbol 1 Red DC voltage Vm 2 No function 3 No function 4 Black Earth terminal GND 5 hite Control voltage Vcc 6 Yellow Speed command Vsp 7 Brown Feed back FG 4 5 Outdoor ...

Page 104: ... and measure the resistance between the following termi nals TM301 P TM305 U TM304 V TM303 TM302 N TM305 U TM304 V TM303 3 Judge the result of 2 as follows Terminal Resistance value Tester P U Over 2 kΩ Including Ω P V P U P Over 20 kΩ Including Ω V P P N U N V N U N Over 2 kΩ Including Ω V N N 4 6 IPM on transistor PCB 03 52 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 105: ...the voltage value between the following terminals 5 Judge the result of 4 as follows Terminal Tester screen Tester P U P V P U P 0 3 to 0 7 V V P P N U N V N U N V N N 4 6 IPM on transistor PCB 03 53 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 106: ...temperature thermistor Temperature F C Resistance kΩ Voltage V 22 0 30 0 1 131 91 0 21 13 0 25 0 804 52 0 29 4 0 20 0 579 59 0 40 5 0 15 0 422 89 0 53 14 0 10 0 312 27 0 69 23 0 5 0 233 21 0 88 32 0 0 0 176 03 1 10 41 0 5 0 134 23 1 36 50 0 10 0 103 34 1 63 59 0 15 0 80 28 1 92 68 0 20 0 62 91 2 21 77 0 25 0 49 70 2 51 86 0 30 0 39 57 2 79 95 0 35 0 31 74 3 06 104 0 40 0 25 64 3 30 113 0 45 0 20 8...

Page 107: ... 0 86 77 0 25 0 49 84 1 03 86 0 30 0 40 01 1 23 95 0 35 0 32 35 1 43 104 0 40 0 26 34 1 65 113 0 45 0 21 58 1 88 122 0 50 0 17 79 2 11 131 0 55 0 14 75 2 34 140 0 60 0 12 30 2 57 149 0 65 0 10 32 2 79 158 0 70 0 8 69 3 00 167 0 75 0 7 36 3 19 176 0 80 0 6 27 3 37 185 0 85 0 5 36 3 54 194 0 90 0 4 60 3 69 203 0 95 0 3 96 3 83 212 0 100 0 3 43 3 96 221 0 105 0 2 98 4 07 230 0 110 0 2 60 4 17 239 0 1...

Page 108: ...7 0 25 0 49 84 1 03 86 0 30 0 40 01 1 23 95 0 35 0 32 35 1 43 104 0 40 0 26 34 1 65 113 0 45 0 21 58 1 88 122 0 50 0 17 79 2 11 131 0 55 0 14 75 2 34 140 0 60 0 12 30 2 57 149 0 65 0 10 32 2 79 158 0 70 0 8 70 3 00 167 0 75 0 7 36 3 19 176 0 80 0 6 27 3 37 185 0 85 0 5 36 3 54 194 0 90 0 4 60 3 69 203 0 95 0 3 96 3 83 212 0 100 0 3 43 3 96 221 0 105 0 2 98 4 07 230 0 110 0 2 60 4 17 239 0 115 0 2 ...

Page 109: ... 3 85 140 0 60 0 1 19 4 00 149 0 65 0 1 00 4 13 158 0 70 0 0 84 4 25 167 0 75 0 0 71 4 35 176 0 80 0 0 61 4 43 Outdoor temperature thermistor Temperature F C Resistance kΩ Voltage V 22 0 30 0 224 33 0 73 12 0 25 0 159 71 0 97 4 0 20 0 115 24 1 25 5 0 15 0 84 21 1 56 14 0 10 0 62 28 1 90 23 0 5 0 46 58 2 26 32 0 0 0 35 21 2 61 41 0 5 0 26 88 2 94 50 0 10 0 20 72 3 25 59 0 15 0 16 12 3 52 68 0 20 0 ...

Page 110: ...5 2 Outdoor unit 03 58 5 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...

Page 111: ...4 CONTROL AND FUNCTIONS 2021 04 26 SR_CH04_AR030EF_01 ...

Page 112: ...23 6 2 MIN HEAT operation 04 23 6 3 ECONOMY operation 04 23 6 4 Fresh air control 04 23 6 5 Compressor preheating 04 24 6 6 External electrical heater control 04 24 6 7 Electronic expansion valve control 04 24 6 8 Drain pump control 04 25 6 9 Prevention to restart for 3 minutes 3 minutes st 04 26 6 10 4 way valve control 04 26 6 11 Unit status monitoring and the detected value indication 04 27 7 V...

Page 113: ...perature is 2 F 1 0 C lower than a set temperature the compressor will be stopped hen the room temperature is within the range of 11 F 6 0 C to 2 F 1 0 C of the setting temperature the compressor frequency is controlled within the range shown in the table below However the maximum frequency is limited in the range shown in the figure below based on the indoor fan mode and the outdoor temperature C...

Page 114: ... unit fan mode HIGH MED LOW QUIET ADUH09LUAS1 A zone 72 44 38 28 B zone 72 44 38 28 C zone 54 44 38 28 D zone 40 34 32 22 E zone 40 34 32 22 F zone 40 34 32 22 ADUH12LUAS1 A zone 102 46 36 26 B zone 102 46 36 26 C zone 58 46 36 26 D zone 39 32 30 20 E zone 39 32 30 20 F zone 39 32 30 20 ADUH18LUAS1 A zone 102 46 36 26 B zone 102 46 36 26 C zone 58 36 32 26 D zone 39 32 30 20 E zone 39 32 30 20 F z...

Page 115: ...e range shown below Compressor frequency range Unit rps Model name Minimum frequency Maximum frequency ADUH09LUAS1 12 110 ADUH12LUAS1 ADUH18LUAS1 8 130 Limit of maximum speed based on outdoor temperature In heating operation maximum frequency is defined by outdoor temperature and fan mode A zone B zone 57 2 F 14 C C zone 14 0 F 10 C Outdoor temperature rises Outdoor temperature drops 53 6 F 12 C 1...

Page 116: ...perature Compressor frequency range Unit rps Model name Outdoor temperature zone Operating frequency ADUH09LUAS1 zone 28 J zone 28 Y zone 0 ADUH12LUAS1 ADUH18LUAS1 zone 26 J zone 26 Y zone 0 Compressor control based on room temperature Ts 1 F Ts 0 5 C Ts 3 F Ts 1 5 C Ts 3 F Ts 1 5 C X zone J zone Y zone Room temperature drops Room temperature rises Ts Set temperature Ts 1 F Ts 0 5 C 1 3 Dry operat...

Page 117: ... 56 68 77 84 93 103 Time sec 1 2 3 4 5 6 7 60 140 170 220 280 360 430 Models AOUH12LUAS1 and AOUH18LUAS1 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 freq...

Page 118: ...emperature zone Limitation of compressor frequency AOUH09LUAS1 A zone 35 rps B zone 35 rps C zone 35 rps D zone 15 rps E zone 15 rps F zone 36 rps AOUH12LUAS1 A zone 37 rps B zone 37 rps C zone 37 rps D zone 28 rps E zone 1 rps F zone 22 rps AOUH18LUAS1 A zone 33 rps B zone 33 rps C zone 33 rps D zone 25 rps E zone 10 rps F zone 20 rps 1 5 Compressor frequency limitation by outdoor temperature 04 ...

Page 119: ...7 rps B zone 37 rps C zone 36 rps D zone 15 rps E zone 15 rps F zone 1 rps AOUH12LUAS1 A zone 34 rps B zone 34 rps C zone 34 rps D zone 15 rps E zone 14 rps F zone 14 rps AOUH18LUAS1 A zone 30 rps B zone 30 rps C zone 30 rps D zone 13 rps E zone 10 rps F zone 10 rps 1 5 Compressor frequency limitation by outdoor temperature 04 7 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNC...

Page 120: ...on mode is middle 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 a...

Page 121: ...n Middle zone Operation mode of outdoor unit Cooling Outdoor temp 77 0 F 25 C Operation mode before the monitor mode is cooling mode Monitor mode Room temp Ts 3 6 F 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...

Page 122: ... mode only Fan operation Airflow can be switched in 5 steps such as AUTO QUIET LO MED HIGH while indoor unit fan only runs hen fan mode is set at AUTO it operates on MED fan speed Cooling operation Switch the airflow AUTO and indoor fan motor will run according to room temperature as below On the other hand if switched in HIGH QUIET indoor motor will run at a constant airflow of COOL operation mod...

Page 123: ...ntrol heating mode The maximum value of the indoor fan speed is set as shown below based on the detected tempera ture by the indoor heat exchanger sensor on heating mode Normal operation Indoor heat exchanger temperature rises S LOW Indoor heat exchanger temperature drops Setting fan mode LOW or setting fan mode Lower speed is selected 98 6 F 37 C 84 2 F 29 C 89 6 F 32 C 75 2 F 24 C 13 minutes lat...

Page 124: ...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 Indoor fan speed 3 1 Indoor fan control 04 12 3 Fan control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 125: ...p Cooling Heating Dry Cooling or dry at low outdoor temp Y zone Y zone Z zone F zone G zone H zone S HIGH2 1 120 S HIGH1 990 1 120 HIGH 990 1 120 10 1 120 9 990 1 120 990 390 320 240 240 8 940 1 120 940 390 320 240 240 7 810 940 810 390 320 240 240 6 810 810 810 300 240 200 200 5 810 690 810 250 240 200 200 4 790 630 790 250 240 200 200 3 710 570 710 250 240 200 200 2 660 570 660 250 240 200 200 1...

Page 126: ...zone F zone G zone H zone S HIGH2 1 100 S HIGH1 1 050 1 100 HIGH 1 050 1 100 10 1 100 9 1 050 1 100 1 050 850 320 270 270 8 810 870 810 850 320 270 270 7 810 760 810 770 320 270 270 6 560 760 560 630 270 230 230 5 560 680 560 440 270 230 230 4 440 530 440 320 270 230 230 3 440 500 440 320 270 230 230 2 440 420 440 320 270 230 230 1 440 420 440 320 270 230 230 NOTE After defrost control on the heat...

Page 127: ...zone F zone G zone H zone S HIGH2 1 100 S HIGH1 1 050 1 100 HIGH 1 050 1 100 10 1 100 9 1 050 1 100 1 050 850 320 270 270 8 950 990 950 850 320 270 270 7 850 920 850 770 320 270 270 6 690 710 690 630 270 230 230 5 560 620 560 440 270 230 230 4 440 560 440 320 270 230 230 3 440 500 440 320 270 230 230 2 440 440 440 320 270 230 230 1 440 440 440 320 270 230 230 NOTE After defrost control on the heat...

Page 128: ...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 129: ...ing temperature is not changed and the operation is stopped at the setting time Set temperature rises Ts Set temperature Stop of operation Ts 3 6 F 2 C Set 60 min 1 8 F 1 C In the heating operation mode hen the sleep timer is set the setting temperature is decreased 1 8 F 1 C It decreases the setting temperature another 1 8 F 1 C every 30 minutes Upon lowering 7 2 F 4 C the setting temperature is ...

Page 130: ...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 131: ... 3 6 F 2 C Set 60 min 1 8 F 1 C In the heating operation mode hen the sleep timer is set the setting temperature is decreased 1 8 F 1 C It decreases the setting temperature another 1 8 F 1 C every 30 minutes Upon lowering 7 2 F 4 C the setting temperature is not changed and the operation is stopped at the setting time Set Ts 3 6 F 2 C 1 8 F 1 C 5 4 F 3 C 7 2 F 4 C Ts Set temperature 30 min 30 min ...

Page 132: ...um of 64 F 18 C even if the SET BACK temperature is set to 63 F 17 C or lower Case of SET BACK timer on the Cooling operation Setting temperature 72 F 22 C SET BACK temperature 78 F 26 C SET BACK setting Operation temperature Operation temperature 1 ON OFF OFF ON 1 During the SET BACK function the setting temperature is changed Chenge the setting temperature 72 F 22 C 75 F 24 C 72 F 22 C 78 F 26 C...

Page 133: ...r Compressor integrating operation time Less than 40 min More than 40 min Condition Does not operate Tn Tn10 9 0 F 5 C Tn 21 2 F 6 C Tn Tnb 3 6 F 2 C Tn 21 2 F 6 C Tn 1 4 F 17 C Ta 14 0 F 10 C Tn 19 4 F 7 C or Tn 13 0 F 25 C Ta 14 0 F 10 C Integrating defrost Constant monitoring Compressor integrating operation time More than 240 min For long continuous operation More than 213 min For long continu...

Page 134: ...of the conditions below is satisfied Outdoor unit heat exchanger temperature after 1 minute or later since compressor start 09 model 60 8 F 16 C or more 12 18 model 55 4 F 13 C or more Compressor operation time 15 minutes 5 1 Defrost operation in heating operation stopped If the outdoor unit is frosted when stopping the heating operation it stops after performing the auto matic defrosting operatio...

Page 135: ...n performs as below setting when pressing MIN HEAT button Operation mode Heating Setting temperature 50 F 10 C Fan mode AUTO LED display Economy Defrost operation Operate as normal 6 3 ECONOMY operation The ECONOMY operation starts by pressing ECONOMY button on the remote controller The ECONOMY operation is almost the same operation as below settings Mode Cooling Dry Heating Target temperature Set...

Page 136: ...Ts 3 C Ts 21 6 F Ts 12 C Ts 1 8 F Ts 1 C Ts 18 0 F Ts 10 C NOTES hen the compressor stop external electric heater is off It operates only in heating mode and when the indoor fan operates However S LO is exclud ed 6 7 Electronic expansion valve control The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the table belo...

Page 137: ... and outdoor fan motor operation are stopped Drain pump operates continuously for 3 minutes after the float switch is turned off and then drain pump is turned off hen the float switch turns on continuously for 3 minutes failure indication operates It is necessary to turn off power for release it hen the float switch turns off less than 3 minutes the unit starts cooling operation Indoor fan motor s...

Page 138: ...witch is turned off and then drain pump is turned off 6 9 Prevention to restart for 3 minutes 3 minutes st hen the compressor fails to start for the number of times below it does not enter operation status for 3 minutes Retry number 50 Retry set number 3 hen the compressor fails to start in the retry set number above the compressor is stopped 6 10 4 way valve control If heating mode is selected at...

Page 139: ...n Off 08 On Off 0 Off 1 On hen the water level rises 00 052 Drain pump On Off 08 On Off 0 Off 1 On 00 080 Indoor unit total energized hours 11 h 00 081 Total filtering hours 11 h 00 082 Indoor unit fan total operation hours 11 h 00 140 Operation or Stop External input 00 0 Off 1 On hen the function setting 46 is not set NOTE Available only for external input port of the indoor unit 00 142 Forced s...

Page 140: ...0 Off 1 On NOTE The value is output even if the function setting or rotary switch is not set 01 Outdoor unit 01 000 Outdoor temp 01 F or C 01 001 Discharge temp 01 F or C 01 003 Heat exchanger middle temp 01 F or C 01 004 Heat exchanger outlet temp 01 F or C 01 007 Compressor temp 01 F or C 01 050 Fan 1 rotation number 03 rpm 01 055 Compressor rotation number 04 rps 01 060 Expansion valve Upstream...

Page 141: ...tarts blinking Trigger condition 219 2 F 104 C Compressor frequency 20 rps 120 seconds Release condition 213 8 F 101 C Compressor protection temperature 230 0 F 110 C 7 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 hen the indo...

Page 142: ...tion mode Outdoor temp Ta Trigger condition Release condition Cooling 122 0 F 50 C Ta 4 5 A 4 0 A 114 8 F 46 C Ta 122 0 F 50 C 4 5 A 4 0 A 104 0 F 40 C Ta 114 8 F 46 C 6 0 A 5 5 A 53 6 F 12 C Ta 104 0 F 40 C 8 5 A 8 0 A 35 6 F 2 C Ta 53 6 F 12 C 8 5 A 8 0 A Ta 35 6 F 2 C 8 5 A 8 0 A Heating 62 6 F 17 C Ta 7 0 A 6 5 A 53 6 F 12 C Ta 62 6 F 17 C 9 0 A 8 5 A 41 0 F 5 C Ta 53 6 F 12 C 10 0 A 9 5 A Ta ...

Page 143: ...peration Fan stop 40 seconds when IPM trip protection works Fan stop 50 seconds when corrent overload protection works 7 5 Compressor temperature protection For 12 18 model hen the compressor temperature sensor detects higher than the trigger condition below the com pressor is stopped hen the compressor temperature sensor detects the release condition the pro tection is released Trigger condition ...

Page 144: ...c Zone C 5 rps 60 sec Zone D The protection is released and the operation is returned to normal mode Zone E Heating mode 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 141 8 F 61 C BC 131 0 F 55 C CD 127 4 F 53 C DE 122 0 F 50 C Zone Operation Zone A Compressor is stopped Zone B The compressor ...

Page 145: ...5 FILED WORKING 2021 04 26 SR_CH05_AR030EF_01 ...

Page 146: ...CONTENTS 5 FILED WORKING 1 Function settings 05 1 1 1 Function settings on indoor unit 05 1 1 2 Function settings by using remote controller 05 3 ...

Page 147: ...ents on the PCB you can change the function settings Related components on the PCB and the applicable settings Component Setting content DIP switch S 101 1 Drainage function setting 2 Auto louver grille setting 3 Fan delay setting Component location Components on the indoor unit main PCB used for the function settings are located as shown in the following figure SW101 1 2 3 1 1 Function settings o...

Page 148: ...ached set to Enabled Switch 2 Auto louver grille setting Factory setting ON Enabled OFF Disabled SW101 Switch 3 Fan delay setting hen the indoor unit is stopped while operating in conjunction with auxiliary heater the indoor unit fan operation will continue for 1 minute Switch 3 Fan delay Factory setting ON Enabled OFF Disabled 1 1 Function settings on indoor unit 05 2 1 Function settings FIELD WO...

Page 149: ...remote controller sensor 5 40 Auto restart 6 42 Room temperature sensor switching 7 44 Remote controller custom code 8 46 External input control 9 48 Room temperature sensor switching Aux 10 49 Indoor unit fan control for energy saving for cooling 11 60 Switching functions for external output terminal 12 61 Control switching of external heaters 13 62 Operating temperature switching of external hea...

Page 150: ... corrected as follows Corrected temp Temp of the room temp sensor Correction temp value Example of correction hen the temperature of the room temp sensor is 78 F and the setting value is 03 2 F the corrected temp will be 80 F 78 F 2 F The temperature correction values show the difference from the Standard setting 00 manufactur er s recommended value Function number Setting value Setting descriptio...

Page 151: ...5 6 F 3 0 C 16 7 F 3 5 C 17 8 F 4 0 C 5 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 de...

Page 152: ...scription Factory setting 48 00 Both 01 ired remote controller 10 Indoor unit fan control for energy 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 hen the outdoor un...

Page 153: ...l heater to be used For details refer to External heater output in Chapter 0 1 Details of function on page 1 Function number Setting value Setting description Factory setting 61 00 Auxiliary heater control 1 01 Auxiliary heater control 2 02 Heat pump prohibition control 03 Auxiliary heater control by outdoor temperature 1 04 Auxiliary heater control by outdoor temperature 2 05 Auxiliary heater con...

Page 154: ... 4 F 3 C 0 F 0 C 10 7 2 F 4 C 0 9 F 0 5 C 7 2 F 4 C 0 F 0 C 11 9 0 F 5 C 0 9 F 0 5 C 9 0 F 5 C 0 F 0 C 12 5 4 F 3 C 0 F 0 C 0 9 F 0 5 C 0 9 F 0 5 C 13 3 6 F 2 C 0 F 0 C 1 8 F 1 C 0 9 F 0 5 C 14 3 6 F 2 C 0 F 0 C 3 6 F 2 C 0 9 F 0 5 C 15 5 4 F 3 C 0 F 0 C 5 4 F 3 C 0 9 F 0 5 C 16 7 2 F 4 C 0 F 0 C 7 2 F 4 C 0 9 F 0 5 C 17 9 0 F 5 C 0 F 0 C 9 0 F 5 C 0 9 F 0 5 C 14 Outdoor temperature zone boundary ...

Page 155: ...e standby time until the auxiliary equipment operation starts during primary equipment opera tion For details refer to Chapter 0 1 Details of function on page 1 Function number Setting value Setting description Factory setting 71 00 Disable 01 1 minute 02 2 minutes 98 98 minutes 99 99 minutes 17 Heat pump backup setting Enables or disables the heat pump backup instruction from the outdoor unit Thi...

Page 156: ...seconds 03 30 seconds 20 External heater use in defrosting Enables or disables external heater use in defrosting NOTE Inappropriate heater selection may cause cold air in defrosting Function number Setting value Setting description Factory setting 75 00 Disable 01 Enable 1 2 Function settings by using remote controller 05 10 1 Function settings FIELD WORKING FIELD WORKING ...

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