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Fujitsu AOTG30KMTC Service Manual Download Page 91

Check point 5. Check the refrigerant amount

Check 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

2-35. E: A3. Compressor temperature error (Outdoor unit)

- (03-53) -

2. Troubleshooting with error code

TROUBLESHOOTING

TROUBLESHOOTING

Summary of Contents for AOTG30KMTC

Page 1: ...AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASTG30KMTC ASTG34KMTC OUTDOOR AOTG30KMTC AOTG34KMTC SR_AS004EF_04 2020 05 12 ...

Page 2: ...are trademarks of Fujitsu General Limited in the United States other countries or both FGLair Android and Google Play are trademarks of Google Inc App Store is a service mark of Apple Inc registered in the U S and other countries IOS is a trademark or registered trademark of Cisco in the U S and other countries and is used under license Copyright 2019 2020 Fujitsu General Limited All rights reserv...

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 2019 06 27 SR_CH01_AS004EF_01 ...

Page 6: ...CONTENTS 1 GENERAL INFORMATION 1 Specifications 01 1 1 1 Indoor unit 01 1 1 2 Outdoor unit 01 2 2 Dimensions 01 3 2 1 Indoor unit 01 3 2 2 Outdoor unit 01 5 ...

Page 7: ...8 900 30 Sub1 126 900 13 3 Sub2 84 900 13 3 Fin pitch Main 1 2 Sub 1 4 Rows Stages Main 3 28 Sub1 1 6 Sub2 1 4 Pipe type Copper tube Fin type Aluminum Enclosure Material Polystyrene Color White Approximate color of Munsell N 9 25 Dimensions H W D Net mm 340 1 150 280 Gross 405 1 270 450 Weight Net kg 18 5 Gross 24 Connection pipe Size Liquid mm in Ø 9 52 Ø 3 8 Gas Ø 15 88 Ø 5 8 Method Flare Drain ...

Page 8: ...0YR 7 5 1 0 Dimensions H W D Net mm 830 900 330 914 970 370 Gross 1 000 1 050 445 1 078 1 064 479 Weight Net kg 60 74 Gross 68 83 Connection pipe Size Liquid mm Ø 9 52 Ø 3 8 Gas Ø 15 88 Ø 5 8 Method Flare Pre charge length m 20 30 Max length 75 Max height difference 30 Operation range Cooling C 10 to 46 Heating 15 to 24 Drain hose Material LDPE Size mm Ø 13 0 I D Ø 16 0 to Ø 16 7 O D International...

Page 9: ...nit Models ASTG30KMTC and ASTG34KMTC Unit mm 1 150 Outline of unit 520 90 20 64 479 61 108 502 520 50 50 11 340 ø 8 0 ø 8 0 340 280 16 1 150 609 672 725 2 1 Indoor unit 01 3 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 10: ... household belongings under the product Conden sation dripping from the product might get them wet and may cause damage or malfunction to the property 63 or more 88 or more 50 or more 50 or more 70 or more Outline of unit 140 or more 1 500 or more 1 800 or more Unit mm 2 1 Indoor unit 01 4 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 11: ...0 830 370 99 196 21 9 77 31 330 400 170 147 Top view Front view Side view Bottom view Airflow 4 Ø12 mm hole Drain cap mounting places Drain pipe mounting place Unit mm 2 2 Outdoor unit 01 5 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 12: ...4 24 12 370 410 650 87 89 970 914 21 8 25 131 50 95 Ø2 8 Ca ble po rt Ø28 Unit mm Top view Front view Side view Rear view Bottom view Detail A Pipe cable port Pipe port Pipe port Pipe port Airflow Drain cap mounting places Drain pipe mounting place 440 2 2 Outdoor unit 01 6 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 13: ...2 TECHNICAL DATA AND PARTS LIST 2020 05 12 SR_CH02_AS004EF_05 ...

Page 14: ... 4 Accessories 02 10 4 1 Indoor unit 02 10 4 2 Outdoor unit 02 10 5 Optional parts 02 11 5 1 Indoor unit 02 11 5 2 Outdoor unit 02 12 6 Refrigerant system diagrams 02 13 6 1 Model AOTG30KMTC 02 13 6 2 Model AOTG34KMTC 02 14 7 Wiring diagrams 02 15 7 1 Indoor unit 02 15 7 2 Outdoor unit 02 16 8 PC board diagrams 02 18 8 1 Models ASTG30KMTC and ASTG34KMTC 02 18 8 2 Model AOTG30KMTC 02 19 8 3 Model A...

Page 15: ...of the products before you start ser vicing Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present while the work is being performed All maintenance staff and others 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 ...

Page 16: ...or 7 9386997003 Cable guide 8 9386958004 Louver U 9 9386959001 Louver Z 10 9387072181 Front panel total assy 11 9382114008 Intake grille assy 12 9386986007 Screw cap 13 9386960007 Air filter 14 9387074017 Wire cover assy 15 9387060010 Casing assy 16 9316177017 Drain cap 17 9315212016 Air clean filter assy 18 9318912005 Remote controller holder 19 9332438628 Remote controller a Step motor holder b ...

Page 17: ...9 Display case assy 56 9382134006 Front panel cover B assy 57 9306489045 Terminal 58 9900627027 Thermistor assy 59 9386988001 Room thermistor holder 60 9316568006 Motor cover 61 9603458010 Brushless motor 62 9316601000 Motor cover 63 9387055009 Crossflow fan assy 64 9306628017 Bearing C assy 65 9387064070 Evaporator total assy a Rear panel b Box shield assy c Control box d PCB holder A e Control c...

Page 18: ...e cover 6 9374166138 Base assy 7 313166024302 Drain cap 8 9303029015 Drain assy 9 9351355005 Rear emblem 10 9374415052 Service panel sub assy 11 9378111011 Fan guard cover 12 9374330010 Fan guard 13 9374414079 Front panel sub assy 14 9366378020 Propeller fan assy 15 9379385015 Brushless motor 16 9374418152 Motor bracket sub assy 17 9374420469 Condenser sub assy 18 9375361013 Net rubber 3 1 Model A...

Page 19: ... 59 9709315057 Demand PCB 60 9709881323 Main PCB 61 9711368003 Filter PCB 62 9709894040 Capacitor PCB 63 9378530010 Heat sink 9708549019 Wire with connector CN400 on main PCB CN11 on ACTPM 9708548012 Wire with connector CN40 on main PCB CN301 on transistor PCB 9708550015 Wire with connector CN42 on main PCB CN303 on transistor PCB 9709657034 Wire with connector CND02 on main PCB CN01 on demand PCB...

Page 20: ...ub assy 105 9970095030 Expansion valve coil 106 9321629006 Expansion valve assy 107 9377958020 3 way valve assy 108 9375347024 Sleeve A comp 109 9377973016 Special nut 110 9810366009 Compressor 9378851177 Compressor cover A 9378851016 Compressor cover B 9378851023 Compressor cover C 9378851184 Compressor cover D 9378173576 Pipe insulation a Valve plate 3 1 Model AOTG30KMTC 02 6 3 Outdoor unit part...

Page 21: ... 313166024302 Drain cap 8 9303029015 Drain assy 9 9380114000 Rear emblem 10 9379424011 Service panel sub assy 11 9381906000 Pipe cover front sub assy 12 9379399012 Fan guard 13 9379418027 Front panel sub assy 14 9379414005 Propeller fan assy 15 9603518004 Brushless motor 16 9379429023 Motor bracket sub assy 17 9379396004 Protective net left 18 9374420506 Condenser AB sub assy 19 9375361013 Net rub...

Page 22: ...9894088 Capacitor PCB 63 9380358022 Heat sink 9710179006 Wire with connector CN2 on main PCB CN101 on filter PCB 9708811017 Wire with connector CN400 on main PCB CN11 on ACTPM 9710180002 Wire with connector CN20 on main PCB CN301 on transistor PCB 9710181009 Wire with connector CN320 on main PCB CN303 on transistor PCB 9710182006 Wire with connector CN40 on main PCB CN401 indicator PCB 9709657034 ...

Page 23: ...77973016 Special nut 106 9375347024 Sleeve A comp 107 9379150125 FPE HR 108 9370947274 Expansion valve assy 109 9379077019 3 way valve assy 110 9970096044 Expansion valve coil 111 9810360007 Compressor 112 9970055041 Solenoid 113 9379794008 Pipe rubber 114 9382130008 Water guide plate 9378851276 Compressor cover A 9378612020 Compressor cover B 9380252016 Compressor cover C 3 2 Model AOTG34KMTC 02 ...

Page 24: ...1 Tapping screw small 2 Battery 2 Air cleaning filter 2 Remote controller holder 1 Air cleaning filter frame 2 4 2 Outdoor unit Models AOTG30KMTC and AOTG34KMTC Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain cap 2 Drain pipe 1 One touch bush Only for 34 model 2 Cable tie with clips 1 Cable tie small 1 EMI core 1 Insulation 2 4 1 Indoor unit 02 10 4 Accessories TECHNICA...

Page 25: ...nd operation mode Wire type Non polar 2 wire Optional communication kit is necessary for installation Simple remote controller UTY RHRY Compact remote controller concentrates on the basic functions such as Start Stop fan control and temperature setting Wire type Non polar 2 wire Optional communication kit is necessary for installation NOTES Available functions may differ by the remote controller F...

Page 26: ...llation Communication kit UTY TWRXZ2 Use to connect Non polar 2 core wired remote controller Wireless LAN adapter UTY TFSXF3 Remotely manage an air conditioning system using mobile devices such as smartphones and tablets 5 2 Outdoor unit Exterior Part name Model name Summary External connect kit UTY XWZXZ3 Use to operate the external input and output functions of outdoor unit 5 1 Indoor unit 02 12...

Page 27: ...hO ThHO Pressure switch Accumulator 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 Pressure check valve 6 1 Model AOTG30KMTC 02 13 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS ...

Page 28: ...tor Discharge temperature Thermistor Heat Exchanger Med temperature Thermistor Heat Exchanger Out temperature ThD Thermistor Compressor temperature ThC ThHM ThHO Thermistor Outdoor temperature ThO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI Pressure check valve Pressure sensor Muffler Muffler 6 2 Model AOTG34KMTC 02 14 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIS...

Page 29: ...7 Wiring diagrams 7 1 Indoor unit Models ASTG30KMTC and ASTG34KMTC 7 1 Indoor unit 02 15 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 30: ...7 2 Outdoor unit Model AOTG30KMTC 7 2 Outdoor unit 02 16 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ... Model AOTG34KMTC 7 2 Outdoor unit 02 17 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 32: ...WHITE CN301 B07B PASK 1 WHITE CN300 B03B XNISK A 1 WHITE CN1 SM05B SRSS TB WHITE CN1 B03B PLISK 1 WHITE THERMISTOR PIPE TEMP THERMISTOR ROOM TEMP PYROELECTRIC SENSOR BOARD HUMAN SENSOR FJZ 10 J2 USB5 A4M2 KNSO 01 WHITE CN308 B04B PASK 1 WHITE CN309 B12B PASK 1 WHITE CN314 B3B XH AM WHITE CN313 B3B XH AM WHITE CN312 B2B XH AM WHITE CN311 B2B XH AM WHITE CN310 B2B XH AM WHITE EMI FILTER ZCAT1518 073...

Page 33: ... 3 GIC2 0 3P YELLOW CN65 1 1971032 3 GIC2 0 3P RED 2 1 CT IN OUT EARTH N L 3 2 1 POWER SOURCE AC240V 50Hz INDOOR UNIT DC FAN MOTOR EXPANSION VALVE COIL PRESSURE SWITCH THERMISTOR COMPRESSOR TEMP THERMISTOR OUTDOOR TEMP THERMISTOR DISCHARGE TEMP THERMISTOR PIPE TEMP FM M CM UL1015 AWG14 RED UL1015 AWG14 BLACK 2 3 1 4 EMI FILTER ZCAT1518 0730 2 TURNS EMI FILTER ZCAT1518 0730 1 TURN EMI FILTER ZCAT21...

Page 34: ...AYK 1 A YELLOW CN11 B02B XAMK 1 A GREEN CN12 B02B XAKK 1 A BLACK CN13 B02B XAEK 1 A BLUE CN111 B06B XARK 1 A RED CN6 1747052 1 GIC7 92 2P WHITE CN9 B4P6 VH B C BLACK CN101 1 1871843 2 GIC2 5 3P RED CN91 1871843 4 GIC2 5 4P WHITE CN61 B03B PASK 1 WHITE CN62 B04B PASK 1 WHITE CN63 B05B PASK 1 WHITE EMI FILTER GRFC 13 2 TURNS EMI FILTER ZCAT2132 1130 2 TURNS EMI FILTER GTFC 25 15 12 1 TURN EMI FILTER...

Page 35: ...3 TROUBLESHOOTING 2020 05 08 SR_CH03_AS004EF_02 ...

Page 36: ...ly error for fan motor Indoor unit 03 25 2 13 E 3A Indoor unit communication circuit error Indoor unit 03 26 2 14 E 41 Room temperature sensor error Indoor unit 03 27 2 15 E 42 Indoor unit heat exchanger sensor error Indoor unit 03 28 2 16 E 51 Indoor unit fan motor error Indoor unit 03 29 2 17 E 5U Indoor unit error 03 30 2 18 E 62 Outdoor unit main PCB error Outdoor unit 03 31 2 19 E 63 Inverter...

Page 37: ... LAN adapter error 03 64 4 3 Network communication error between wireless LAN router and WLAN adapter 03 65 4 4 E 18 Communication error 03 67 4 5 E 18 Wireless LAN adapter non energized 03 69 4 6 Mobile app setting method 03 70 5 Service parts information 03 75 5 1 Compressor 03 75 5 2 Inverter compressor 03 76 5 3 Outdoor unit Electronic Expansion Valve EEV 03 77 5 4 Indoor unit fan motor 03 79 ...

Page 38: ......

Page 39: ...umber error Indoor unit 2 times 9 times Continuous 29 E 32 Indoor unit main PCB error Indoor unit 3 times 2 times Continuous 32 E 33 Indoor unit motor electricity consumption detection error Indoor unit 3 times 3 times Continuous 33 E 35 MANUAL AUTO button error Indoor unit 3 times 5 times Continuous 35 E 39 Indoor unit power supply error for fan motor Indoor unit 3 times 9 times Continuous 39 E 3...

Page 40: ...mes 4 times Continuous 94 E 95 Compressor motor control error Outdoor unit 9 times 5 times Continuous 95 E 97 Outdoor unit fan motor error Outdoor unit 9 times 7 times Continuous 97 E 99 4 way valve error Outdoor unit 9 times 9 times Continuous 99 E A1 Discharge temperature error Outdoor unit 10 times 1 times Continuous A1 E A3 Compressor temperature error Outdoor unit 10 times 3 times Continuous ...

Page 41: ... 2 5 15 E 29 Connected unit number error Indoor unit 2 5 15 E 32 Indoor unit main PCB error Indoor unit 2 5 15 E 35 MANUAL AUTO button error Indoor unit 2 5 15 E 3A Indoor unit communication circuit error Indoor unit 2 5 15 E 41 Room temperature sensor error Indoor unit 2 5 15 E 42 Indoor unit heat exchanger sensor error Indoor unit 2 5 15 E 51 Indoor unit fan motor error Indoor unit 2 5 15 E 62 O...

Page 42: ...or error Outdoor unit 2 9 7 E 99 4 way valve error Outdoor unit 2 9 9 E A1 Discharge temperature error Outdoor unit 2 10 1 E A3 Compressor temperature error Outdoor unit 2 10 3 E A5 Low pressure error Outdoor unit 2 10 5 Light on Light off n n Times blinking 1 2 Error code table Outdoor unit for 34 model only 03 4 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 43: ... operate according to the error contents Error contents Wireless LAN LED orange Error code E 18 External communication error between indoor unit and WLAN adapter On Connection information with router is available Off Connection information with router is unavailable 18 Wireless LAN adapter error Flashing slow No error Network communication error between wireless LAN router and WLAN adapter On No e...

Page 44: ...itioning refer to as follows When the error button on the home screen is tapped error code and error name is displayed For Android Error Name Error button Error code For iOS Error Name Error code Error button 1 4 Error code table Mobile app 03 6 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 45: ...oor unit 51 1 51 2 Outdoor unit main PCB model information error E 62 Outdoor unit main PCB error Outdoor unit 62 1 62 2 Inverter error E 63 Inverter error Outdoor unit 63 1 63 2 PC circuit error E 64 PFC circuit error Outdoor unit 64 1 64 3 64 4 64 8 Trip terminal L error E 65 Trip terminal L error Outdoor unit 65 3 Discharge temp sensor error E 71 Discharge thermistor error Outdoor unit 71 1 Out...

Page 46: ...on the wireless control system refer to error messages as follows The error message disappears after 5 seconds and the normal screen is displayed Error message Error message For Android For iOS 1 5 Error message for wireless LAN control Mobile app 03 8 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 47: ...ice Make sure the device is ready for registration The air conditioner is not connected to the router Enter the Wi Fi setting on the smart device then check if the SSID of the air conditioner AP WF is connected If the air conditioner is connected retry the registration The router the air conditioner is connected to has no internet access Check if the router connected to the air conditioner has int...

Page 48: ...t device Enable Wi Fi from the iOS setting Could not register same LAN device Make sure both devices are in the same LAN and try again to register The smart device and air conditioner are connected to different Wi Fi networks when attempting to register Connect the smart device to the same network as the air conditioner then retry the registration No registrable device was found Make sure Wi Fi se...

Page 49: ...nditioner is ready to pair and that you have entered its SSID and password correctly Occurs when pairing is executed when the user erroneously enter the SSID of the adapter Enter the SSID literally Uppercase and lowercase letters also match General error Error message Cause Solution Failed to change password The smart device has no internet access Connect the mobile device to the internet Cloud no...

Page 50: ...CB failure Active filter module failure Transistor PCB IPM failure Filter PCB failure 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 ope...

Page 51: ...er PCB Check the wire If outdoor fan motor is abnormal replace outdoor unit fan motor and main PCB If active filter module is abnormal replace it If transistor PCB is abnormal replace it 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 ...

Page 52: ... failure Outdoor unit Main PCB 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 53: ...nforma tion on page 03 75 If indoor unit fan motor is abnormal replace indoor unit fan motor and main PCB If it is abnormal replace outdoor unit 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...

Page 54: ...PCB failure Check point 1 Check the connection 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 Controller PCB is normal Replace Remote Control If it is DC 0 V main PCB is failu...

Page 55: ...heck point 1 Check the connection Check any loose or removed connection betw een the main 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 Repl...

Page 56: ...ot match outdoor unit capacity while 3 minutes after power on Forecast of cause Indoor unit selection is incorrect Main PCB failure Check point 1 Check the total capacity of indoor units Check the total capacity of the indoor units If abnormal condition is found correct it referring to the installation manual or DESIGN TECH NICAL MANUAL Check point 2 Replace main PCB If check point 1 does not impr...

Page 57: ...om indoor unit When the refrigerant type is R410A When the outdoor unit type is multi 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 imp...

Page 58: ... failure Check point 1 Wire installation Check the wire connection in the remote controller 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 Wrong remote controller group setting The given address number by auto setting 00 and the manual set number except 00 are ...

Page 59: ...cast of cause Wrong wiring of indoor unit or remote controller Number of indoor unit or remote controller in remote controller group Indoor unit main PCB failure Check point 1 Wire installation Wrong 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 P...

Page 60: ...ctors loose connector or incorrect wiring Check any shortage or corrosion on PCB Check point 3 Replace main PCB Change controller 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 EEPR...

Page 61: ...the operation is off Check if fan is caught drop off or locked motor If fan or bearing 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...

Page 62: ...econds Indicator PCB Manual auto switch 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...

Page 63: ...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 2 Check connection of Connector Check if conne...

Page 64: ...CB Check terminal voltage of CN6 terminal 1 3 of main PCB Power supply for remote If terminal voltage is DC 12 V remote controller failure Control PCB is OK If terminal voltage is DC 0 V main PCB failure Remote controller is OK NOTE In case of re installation is done due to removed connector or incorrect wiring turn on the power again End Tip Depending on the connected remote controller type follo...

Page 65: ...Check erroneous connection Check if 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 room thermistor resistance value refer to Thermistor resistance values on page 03 86 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of ...

Page 66: ...loose or removed Check erroneous connection Check if 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 room thermistor resistance value refer to Thermistor resistance values on page 03 86 If thermistor is either open or shorted replace it and reset the power Check point 3 ...

Page 67: ... point 1 Check rotation of fan Rotate the fan 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 temp 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 u...

Page 68: ...error between indoor unit and WLAN adapter E 18 Communication error E 18 Wireless LAN adapter non energized E 22 Indoor unit capacity error Indoor unit E 23 Combination error Outdoor unit E 26 Address setting error in wired remote controller Indoor unit E 29 Connected unit number error Indoor unit E 32 Indoor unit main PCB error Indoor unit E 33 Indoor unit motor electricity consumption detection ...

Page 69: ...ast of cause External cause Noise temporary 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 corr...

Page 70: ... Inverter PCB failure Check point 1 Turn the power on again If no go to Check point 1 2 Error displayed again Check point 2 Check the wiring power supply to filter PCB to inverter PCB Connector and wiring connection state check Cable open check Check point 3 Replace filter PCB and inverter PCB Replace filter PCB and inverter PCB End Check point 1 2 Check external cause Check if temporary voltage d...

Page 71: ...he 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 Upon correcting the removed connector or mis wirin...

Page 72: ... Check external cause at indoor and outdoor Voltage drop or Noise Instant 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 Chec...

Page 73: ...or heat exchanger clogged Compressor failure Transistor PCB failure Main PCB failure Check point 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 t...

Page 74: ...t 5 Check transistor PCB Check transistor PCB Refer to transistor PCB in Service parts information on page 03 75 Check point 6 Replace main PCB If Check point 1 to 5 do not improve the symptom change main PCB End 2 22 E 65 IPM error Outdoor unit 03 36 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 75: ...de E 65 outdoor unit No indicated Detective actuator Outdoor unit Main PCB When the signal from FO terminal of IPM is L 0 V during the compressor stopping Forecast of cause Main PCB failure Check point 1 Check main PCB Replace the outdoor unit main PCB End 2 23 E 65 Trip terminal L error Outdoor unit 03 37 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 76: ...ved Check erroneous connection Check if 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 86 If thermistor is either open or shorted replace it and reset the power Check poin...

Page 77: ...oved Check erroneous connection Check if 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 compressor thermistor resistance value refer to Thermistor resistance values on page 03 86 If thermistor is either open or shorted replace it and reset the power Check point 3 Check ...

Page 78: ...Check erroneous connection Check if 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 outdoor unit heat exchanger thermistor resistance value refer to Ther mistor resistance values on page 03 86 If thermistor is either open or shorted replace it and reset the power Check p...

Page 79: ...ck erroneous connection Check if 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 outdoor temperature thermistor resistance value refer to Thermistor re sistance values on page 03 86 If thermistor is either open or shorted replace it and reset the power Check point 3 Chec...

Page 80: ...k point 2 Check connections of outdoor unit electrical components 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 ...

Page 81: ...lure Check point 1 Check the high pressure switch connection state Check connector and wiring connection state Check if cable is open Reset power when reinstalling due to removed connector or incorrect wiring Check point 2 Check the high pressure switch characteristics Check switch characteristics For the characteristics of the high pressure switch refer to below Check point 3 Replace main PCB Cha...

Page 82: ...ure Main PCB failure Inverter compressor failure lock winding short Transistor PCB failure 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 Check transistor PCB Chec...

Page 83: ...CB 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 information on page 03 75 Upon corr...

Page 84: ... cause Fan rotation failure Motor protection by surrounding temperature rise Main PCB failure Outdoor unit fan motor Check point 1 Check rotation of fan Rotate the fan 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 temp around motor Check excessively high temperature around the motor If there is ...

Page 85: ... FM FAN MOTOR BROWN NOTE For details of wiring diagram refer to Wiring diagrams in Chapter 2 TECHNICAL DATA AND PARTS LIST on page 02 15 Read wire DC voltage Red Black 200 400 V White Black 15 1 5V If the voltage is not correct replace Main PCB End 2 32 E 97 Outdoor unit fan motor error Outdoor unit 03 47 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 86: ...oom temperature thermistor 4 way valve Forecast of cause Air filter clogged Connector connection failure Thermistor failure Coil failure 4 way valve failure Controller 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 i...

Page 87: ...e 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 33 E 99 4 way valve error Outdoor unit 03 49 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTIN...

Page 88: ...y valve and check operation NOTE For cooling 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 75 Check the strainer clogging Check point 3 Check the outdoor unit fan a...

Page 89: ...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 34 E A1 Discharge temperature error Outdoor unit 03 51 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 90: ...y valve and check operation NOTE For cooling 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 75 Check the strainer clogging Check point 3 Check the outdoor unit fan a...

Page 91: ...he 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 35 E A3 Compressor temperature error Outdoor unit 03 53 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 92: ...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 outdoor unit ambient temperature Only when heating operation Outdoor unit ambient temperature lower than operating range Check point 3 Check the outdoor unit fan and heat exchanger Only when heating operation No foreign object in air passage Heat exchanger fins clogged Fan...

Page 93: ...eck the refrigerant leakage Check point 7 Replace main PCB If check point 1 to 6 do not improve the symptom replace the main PCB End 2 36 E A5 Low pressure error Outdoor unit 03 55 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 94: ...p 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 216 to 264 V AC 240 10 appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse ...

Page 95: ...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 216 to 264 V AC 240 10 appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse in main PCB If fuse is open check if t...

Page 96: ...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 97: ...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 98: ...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 60 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 99: ...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 100: ...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 62 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 101: ...tion Check any loose or removed connection of between the wireless LAN adapter PCB and con troller PCB If there is abnormal condition correct it Check the connection condition on the controller PCB If there is loose connector open cable or mis wiring correct it Check point 2 Replace wireless LAN adapter If check point 1 do not improve the symptom replace the wireless LAN adapter and cancel the reg...

Page 102: ...f setting button is kept pressed If the setting button is held down by the foreign matter remove the foreign matter or remove the cause of the button press Check point 2 Replace wireless LAN adapter If check point 1 do not improve the symptom replace the wireless LAN adapter and cancel the reg istration of air conditioner on the mobile app After replacing the adapter perform the pairing on the mob...

Page 103: ...k point 1 Check the connection cable Check the connection cable on the wireless LAN router If there is loose connector open cable or mis wiring correct it Check point 2 Check the connection status Check the connection status to the internet and wireless LAN router If the wireless LAN router is not connected to the internet check the transmission between wire less LAN products ex PC or game console...

Page 104: ...le app refer to Mobile app setting method on page 03 70 End Check point 2 2 Check the transmission state Check the wireless transmission state pf the wireless LAN router LED status If the wireless transmission from the wireless LAN router has not been outgoing inquire to the wireless LAN router maker End 4 3 Network communication error between wireless LAN router and WLAN adapter 03 66 4 Troublesh...

Page 105: ...ailure Controller PCB failure Check point 1 Check the connection cable Check the connection cable on the wireless LAN router If there is loose connector open cable or mis wiring correct it Check point 2 Check the connection status and transmission state Check the connection status to the internet and wireless LAN router If the wireless LAN router is not connected to the internet check the transmis...

Page 106: ...correct it Check the connection condition on the controller PCB If there is loose connector open cable or mis wiring correct it Check point 4 Replace wireless LAN adapter If check point 2 to 3 do not improve the symptom replace the wireless LAN adapter and cancel the registration of air conditioner on the mobile app After replacing the adapter perform the pairing on the mobile app For the method o...

Page 107: ...CB If there is abnormal condition correct it Check the connection condition on the controller PCB If there is loose connector open cable or mis wiring correct it Check point 2 Check the wireless LAN adapter PCB and the controller PCB Check voltage at CN6 of main PCB Power supply to remote controller If it is DC 0 V controller PCB is failure Replace controller PCB If it is DC 12 V wireless LAN adap...

Page 108: ...he mobile app 1 Launch the mobile app FGL air 2 Press and hold the registered device name of the air conditioner 3 If the Unregister button is displayed tap the button 4 Tap the Yes button 5 Deregstration of the air conditioner is completed 4 6 Mobile app setting method 03 70 4 Troubleshooting with error code For wireless LAN adapter TROUBLESHOOTING TROUBLESHOOTING ...

Page 109: ...t PC repeat the setup of the chosen mode Lighting pattern Off On Flashing Button mode 1 Launch the mobile app FGL air 2 Sign in with your E mail address and password following the screen on the mobile app john fgl com ÛÛÛÛÛÛ Sign in 3 Press the button to add a new air conditioner 4 Confirm that LED 2 is flashing On Off at 2 seconds intervals Then select Button mode on the screen If LED 2 and 2 are...

Page 110: ...Off 2 sec 2 sec 2 sec 0 5 sec Confirm both of the LED 1 and 2 are on to proceed 7 Press Register button to start the connection with the wireless LAN router Register Registration Successful 2 times Both of the LED 1 and 2 flash 2 times and a message appear when the setup is completed 4 6 Mobile app setting method 03 72 4 Troubleshooting with error code For wireless LAN adapter TROUBLESHOOTING TROU...

Page 111: ...er password ÛÛÛÛÛÛ Connect device Selected router Input the PIN code written on the wireless LAN label 6 Select the SSID of the wireless LAN router to be connected Home AP Enter password Select the WLAN Access Point XYZ AP ÛÛÛÛÛÛ ABC123 Connect device Selected router Input the wireless LAN router wireless LAN access point password then press Connect device button 7 When setup is completed both of ...

Page 112: ...x Select the SSID of the air conditioner to be connected 6 Input the PIN code written on the wireless LAN label AC UTY xxxxxxxxxx Enter password ÛÛÛÛÛÛ Connect device Selected router 7 Select the SSID of the wireless LAN router to be connected Input the wireless LAN router wireless LAN access point password then press Connective de vice button Home AP Enter password Select the WLAN Access Point XY...

Page 113: ...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 114: ... TM304 TM305 Red White Black Compressor Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value AOTG30KMTC 0 642 Ω at 20 C AOTG34KMTC 0 432 Ω at 20 C U R V S W C T 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 5 2 Inverter compressor 03 76 5...

Page 115: ... replace EEV Check point 3 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 4 Check Voltage from main PCB Remove connector and check voltage DC 12 V If it does not appear replace main PCB Check point 5 Check Opening and Closing Operation of Valve When valve is closed it has a temp difference be tween inlet and o...

Page 116: ...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 5 3 Outdoor unit Electronic Expansion Valve EEV 03 78 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 117: ...r 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 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 Blue Feed back FG 5 4 Indoor unit fan motor 03 79 5 Se...

Page 118: ...r 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 Feed back FG 5 5 Outdoor unit fan motor 03 80 5...

Page 119: ... Type B Multimeter SACT32010 HITACHI LACT33020 HITACHI PM 604 FGEL PM 703 FGEL PM 601 FGEL Lot no 1302931395 PM 601 FGEL Lot no 1302931396 IN IN 360 kΩ 20 360 kΩ 20 IN N1 N 0 Ω 0 Ω P IN 720 kΩ 20 900 kΩ 20 L1 L2 1 01 MΩ 0 76 MΩ Ref value 1 Ref value 2 1 01 MΩ 0 76 MΩ Ref value 1 Ref value 2 P N1 N 360 kΩ 20 540 kΩ 20 L1 L2 Control box Ω Ω L2 N1 N 1 65 MΩ 1 14 MΩ Ref value 1 Ref value 2 1 65 MΩ 1 1...

Page 120: ...e 2 Manufacturer FLUKE SANWA Model name FLUKE11 PM3 Power source DC 9 V DC 3 V If it is abnormal replace active filter module Check point 2 Check the output DC voltage between P and N Check the output DC voltage between P and N or compressor stopping and operating If the output voltage of compressor operating is less than the output voltage of com pressor stopping active filter module is defective...

Page 121: ...easure the resistance between the following termi nals TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W 3 Judge the result of 2 as follows Terminal Resistance value Tester P U Over 2 kΩ Including Ω P V P W U P Over 20 kΩ Including Ω V P W P N U N V N W U N Over 2 kΩ Including Ω V N W N 5 7 IPM on transistor PCB 03 83 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 122: ...voltage value between the following terminals 5 Judge the result of 4 as follows Terminal Tester screen Tester P U P V P W U P 0 3 to 0 7 V V P W P N U N V N W U N V N W N 5 7 IPM on transistor PCB 03 84 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 123: ...the PCB measure the voltage between CN91 terminal3 4 of the main PCB DC 1 2 3 4 1 2 3 4 Pressure sensor Red PS CN91 White Black Characteristics of pressure sensor 4 5 0 Outpur DC V Pressure MPa 2 5 0 5 2 5 5 0 5 8 Suction pressure sensor 03 85 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 124: ... 3 48 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 05 63 0 1...

Page 125: ...0 57 15 0 79 12 0 71 20 0 62 55 0 86 25 0 49 84 1 03 30 0 40 01 1 23 35 0 32 35 1 43 40 0 26 34 1 65 45 0 21 58 1 88 50 0 17 79 2 11 55 0 14 75 2 34 60 0 12 30 2 57 65 0 10 32 2 79 70 0 8 70 3 00 75 0 7 36 3 19 80 0 6 27 3 37 85 0 5 36 3 54 90 0 4 60 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 27 4 26 120 0 2 00 4 33 6 2 Outdoor unit 03 87 6 Thermistor resistance va...

Page 126: ... 0 79 12 0 71 20 0 62 55 0 86 25 0 49 84 1 03 30 0 40 01 1 23 35 0 32 35 1 43 40 0 26 34 1 65 45 0 21 58 1 88 50 0 17 79 2 11 55 0 14 75 2 34 60 0 12 30 2 57 65 0 10 32 2 79 70 0 8 70 3 00 75 0 7 36 3 19 80 0 6 27 3 37 85 0 5 36 3 54 90 0 4 60 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 27 4 26 120 0 2 00 4 33 6 2 Outdoor unit 03 88 6 Thermistor resistance values TR...

Page 127: ...0 0 0 89 4 21 75 0 0 76 4 31 80 0 0 65 4 40 85 0 0 55 4 48 90 0 0 48 4 54 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 20 2 61 5 0 26 88 2 94 10 0 20 72 3 24 15 0 16 12 3 52 20 0 12 64 3 76 25 0 10 00 3 96 30 0 7 97 4 14 35 0 6 40 4 28 40 0 5 18 4 40 45 0 4 21 4 50 50 0 ...

Page 128: ...6 2 Outdoor unit 03 90 6 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...

Page 129: ...4 CONTROL AND FUNCTIONS 2020 05 08 SR_CH04_AS004EF_02 ...

Page 130: ...estart 04 20 7 2 Test operation control 04 20 7 3 MANUAL AUTO operation 04 20 7 4 Forced cooling operation 04 21 7 5 10 C HEAT operation 04 21 7 6 ECONOMY operation 04 21 7 7 POWERFUL operation 04 21 7 8 Compressor preheating 04 22 7 9 Electronic expansion valve control 04 22 7 10 Prevention to restart for 3 minutes 3 minutes st 04 22 7 11 4 way valve control 04 23 7 12 Demand response operation 0...

Page 131: ...8 7 Low outdoor temperature protection 04 28 8 8 High temperature and high pressure release control heating mode 04 29 CONTENTS continued ...

Page 132: ......

Page 133: ...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 ASTG30KMTC 14 rps 65 rps ASTG34KMTC 16 rps 77 rps Limit of maximum speed based on outdoor temperature 36 C A zone 34 C 32 C B zone 30 C 21 C C zone 19 C D zone E zone F zone 10 C 0 C 12 C 2 C Outd...

Page 134: ...ion frequen cy will attain to maximum performance If the room temperature is 1 0 C higher than a set temperature the compressor will be stopped When the room temperature is within the range of 1 0 C to 6 0 C of the setting temperature the compressor frequency is controlled within the range shown below Compressor frequency range Unit rps Model name Minimum frequency Maximum frequency ASTG30KMTC 18 ...

Page 135: ...e 16 Z zone 0 ASTG34KMTC X zone 29 Y zone 18 Z 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 4 Compressor frequency at normal start up Model AOTG30KMTC Compressor frequency soon after starting is controlled as below Time 1 Time 2 Time 3 Time 4 Frequency I Frequency II F...

Page 136: ...ermistor 32 C in heating mode After defrost operation Other than when the compressor starts for the first time since the breaker turns on Special operation Other than the normal operation condition When the compressor starts for the first time since the breaker turns on 1 4 Compressor frequency at normal start up 04 4 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 137: ... more Pattern C 15 C or more Pattern A 3 hours or more Less than 15 C Less than 10 C Pattern B 10 C or more Pattern C 15 C or more Less than 10 C Pattern B 10 C or more Pattern C Pattern A Frequency rps I II III IV 35 51 61 77 Time sec 1 2 3 4 90 180 420 480 Pattern B Frequency rps I II III IV 39 57 68 85 Time sec 1 2 3 4 200 700 840 1 010 Pattern C Frequency rps I II III IV 39 57 68 85 Time sec 1...

Page 138: ...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 139: ...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 7 2 A...

Page 140: ...ing mode only Fan operation Airflow can be switched in 5 steps such as AUTO QUIET LOW MED HIGH while indoor unit fan only runs When 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 operatio...

Page 141: ...on control 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 42 C Indoor heat exchanger temperature rises HIGH or setting fan mode Cool air prevention S LOW Indoor heat exchanger temperature drops 39 C 37 C 30 C 37 C 34 C 32 C 28 C MED or setting fan mode LOW or settin...

Page 142: ...30 C 37 C 34 C 32 C 28 C POWERFUL LOW LOW LOW 10 C HEAT operation Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops 39 C 34 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 143: ...19 C 10 C 0 C 10 C H zone Unit rpm Fan step Cooling Heating Dry Cooling or dry at low outdoor temp Y zone Z zone Y or Z zone F zone G zone H zone S HIGH2 900 S HIGH1 900 HIGH3 800 HIGH2 800 500 830 HIGH1 750 400 830 320 350 300 230 MED2 700 360 800 MED1 620 320 620 280 250 230 200 LOW2 500 280 550 LOW1 400 250 450 280 230 200 200 NOTE After defrost control on the heating mode the fan speed is kept...

Page 144: ...ssor frequency increases the outdoor fan speed also changes to the higher speed When the compressor frequency decreases the outdoor fan speed also changes to the lower speed NOTE After defrost control on the heating mode the fan speed is kept higher regardless of the compressor frequency Fan speed after defrost control 950 rpm 3 2 Outdoor fan control 04 12 3 Fan control CONTROL AND FUNCTIONS CONTR...

Page 145: ...1 the air direction cannot be adjusted during this period The airflow direction setting 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 Horizontal ai...

Page 146: ...bottom end To select horizontal airflow swing operation When the swing signal is received the horizontal airflow direction louver starts to swing Swinging range All mode 1 5 When the indoor fan is S LOW or stop mode the swing operation is interrupted and it stops at either upper end or bottom end To select vertical and horizontal airflow swing operation When the swing signal is received both of th...

Page 147: ...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 148: ...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 149: ...5 deg Tn Tnb 2 deg Tn 6 C For 30 model Tn 10 C For 34 model Integrating defrost Constant monitoring Compressor integrating operation time More than 240 min For long continuous operation More than 215 min For long continuous operation Less than 10 min For intermittent operation Condition 3 C 5 C Count of the compressor off 40 times If the compressor continuous operation time is less than 10 minutes...

Page 150: ...n Outdoor heat exchanger temperature Below 9 C Outdoor heat exchanger temperature Below 5 C Compressor integrating operation Over 35 min 2nd and later defrost Integrating defrost Constant monitoring Defrost Indicator Operation lamp 7 sec ON 2 sec OFF Defrost start Tn Tn10 5deg Tn Tnb 2deg However Tn 6 C 30 34 Compressor OFF count 40 times Less than 10min 1st defrost Compressor integrating operatio...

Page 151: ...er temperature 4 C or less Release condition The defrost operation is released when the condition become as shown below Outdoor unit heat exchanger temperature after 1 minute or later since compressor start 30 model 13 C or more 34 model 12 C or more Compressor operation time 15 minutes Flowchart Heating operation stop Outdoor heat exchanger temperature Below 4 C Compressor continuous operation Ov...

Page 152: ...lamp and timer indicator lamp will begin to flash simultaneously during cool ing test run Then heating test run will begin in about 3 minutes when HEAT is selected by the re mote control operation To end test operation press the remote controller START STOP button 7 3 MANUAL AUTO operation When the wireless remote controller is lost or battery power dissipated this function will work without the r...

Page 153: ...n 10 C HEAT operation performs as below setting when pressing 10 C HEAT button Operation mode Heating Setting temperature 10 C Fan mode AUTO LED display Economy Defrost operation Operate as normal 7 6 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...

Page 154: ...electronic expansion valve is calculated and controlled under the present operating condition based on the table below Operation mode Pulse range Cooling dry mode Between 32 and 480 pulses Heating mode Between 45 and 480 pulses NOTE At the time of supplying the power to the outdoor unit the initialization of the electronic ex pansion valve is operated 528 pulses are input to the closing direction ...

Page 155: ...R mode 2 The air conditioner continues to cool or heat during the demand response event but electrical energy consumed by the air conditioner in a half hour period is not more than 50 of the total electrical energy that would be consumed if operating at the rated capacity in a half hour period DR mode 3 The air conditioner continues to cool or heat during the demand response event but electrical e...

Page 156: ...ximum 4 C Minimum setting temperature 16 C Auto Energy saving function is performed automatically for the selected mode cool heat dry Application range Vertical angle 90 Side view Horizontal angle 100 Top view 90 7 m 50 50 7 m Energy saving function may not work when the room temperature is very different from the tem perature defined in the temperature setting such as when immediately after start...

Page 157: ...efrost operation the compressor operates by the speed for defrost operation Even during the low noise operation the operations of current overload economy and peak cut are effective and the outdoor unit operates by lowest current of them Capacity priority mode Operation condition The function setting is set to 1 Capacity check condition Shortage Compressor frequency limited compressor frequency fo...

Page 158: ...ooling and dry mode when the indoor unit heat exchang er temperature sensor detects the temperature lower than the trigger condition When the indoor unit heat exchanger temperature reaches release condition the anti freezing con trol is stopped Trigger condition 4 C Release condition Outdoor temp 10 C 1 Outdoor temp 12 C 2 7 C Outdoor temp 10 C 1 Outdoor temp 12 C 2 13 C 1 During the outdoor tempe...

Page 159: ...0 12 0 11 5 10 0 9 5 10 C Ta 5 C 15 5 15 0 11 5 11 0 15 C Ta 10 C 16 5 16 0 12 5 12 0 8 0 7 5 Ta 15 C 13 0 12 5 Trigger condition Release condition Heating Outdoor temp Ta Outdoor unit fan speed rpm 950 890 800 780 690 520 410 280 250 20 C Ta 14 5 14 0 12 C Ta 20 C 16 5 16 0 Ta 12 C 19 5 19 0 16 5 16 0 Trigger condition Release condition 8 4 Cooling pressure over rise protection When the outdoor u...

Page 160: ...ure switch Off Open Higher than 4 2 MPa Compressor stop Release condition Pressure switch On Close Lower than 3 2 MPa 3 minutes after compressor stop Compressor restart 8 7 Low outdoor temperature protection When the outdoor temperature sensor detects lower than the trigger condition below the compres sor is stopped Operation mode Cooling Dry Heating 30 model Trigger condition 20 C 25 C Release co...

Page 161: ...c Zone D The protection is released and the operation is returned to normal mode Zone E Model AOTG34KMTC Indoor unit heat exchanger pressure rises Indoor unit heat exchanger pressure drops Stable zone AB BC CD DE Zone A Zone B Zone C Zone D Zone E AB 4 1 MPaG BC 3 5 MPaG CD 3 3 MPaG DE 3 0 MPaG Zone Operation Zone A Compressor is stopped Zone B The compressor frequency is decreased 15 rps 120 sec ...

Page 162: ...8 8 High temperature and high pressure release control heating mode 04 30 8 Various protections CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 163: ...5 FILED WORKING 2019 07 24 SR_CH05_AS004EF_01 ...

Page 164: ...utdoor unit AOTG34KMTC only 05 10 2 1 Local setting switch buttons 05 10 2 2 Local setting procedure 05 12 3 External input and output For indoor unit 05 16 3 1 External input 05 17 3 2 External output 05 18 3 3 Combination of external input and output 05 19 3 4 Details of function 05 20 4 External input and output For outdoor unit AOTG34KMTC only 05 32 4 1 External input 05 32 4 2 External output...

Page 165: ... 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 166: ...ress setting 2 11 Filter sign 3 30 31 Room temperature control for indoor unit sensor 4 35 36 Room temperature control for wired 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 61 Control switching...

Page 167: ...4 Unit no 14 15 Unit no 15 NOTE When different type of indoor units such as wall mounted type and cassette type cassette type and duct type or other combinations are connected using group control system some functions may no longer be available 2 Filter sign Select appropriate intervals for displaying the filter sign on the indoor unit according to the estimated amount of dust in the air of the ro...

Page 168: ...nd the setting value is 03 1 0 C corrected temp will be 27 C 26 C 1 0 C The temperature correction values show the difference from the Standard setting 00 manufactur er s recommended value Function number Setting value Setting description Factory setting 30 For cooling 31 For heating 00 Standard setting 01 No correction 0 0 C 02 0 5 C More cooling Less heating 03 1 0 C 04 1 5 C 05 2 0 C 06 2 5 C 0...

Page 169: ...o 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 6 Room temperature sensor switching On...

Page 170: ...1 too Function number Setting value Setting description Factory setting 48 00 Both 01 Wired 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 En...

Page 171: ...ing value Setting description Factory setting Setting value of function 61 00 01 02 03 04 Heater On Heater Off Heater On Heater Off 62 00 3 C 1 C 0 5 C 0 5 C 01 2 C 1 C 1 C 0 5 C 02 2 C 1 C 2 C 0 5 C 03 3 C 1 C 3 C 0 5 C 04 4 C 1 C 4 C 0 5 C 05 5 C 1 C 5 C 0 5 C 13 Outdoor temperature zone boundary temperature A Setting required if changing of the outdoor temperature setting for heat pump prohibit...

Page 172: ...1 is performed on the indoor unit For details refer to Chapter 3 4 Details of function on page 05 20 Function number Setting value Setting description Factory setting 67 00 6 C 01 10 C 02 8 C 03 6 C 04 4 C 05 2 C 06 0 C 07 2 C 08 4 C 09 6 C 10 8 C 11 10 C 12 12 C 13 14 C 14 16 C 15 18 C 1 1 Function settings by using remote controller 05 8 1 Function settings For indoor unit FIELD WORKING FIELD WO...

Page 173: ...TART 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 custom co...

Page 174: ...s discharge the static electricity from your body Never touch the terminals or the patterns on the parts that are mounted on the PCB 2 1 Local setting switch buttons Control PCB and switch buttons location Control PCB of the outdoor unit is located as shown in the following figure LED lamps Switch buttons Terminal block 2 1 Local setting switch buttons 05 10 2 Function settings For outdoor unit AO...

Page 175: ...indicates low noise level 5 PEAK CUT MODE L4 L5 and L6 Orange Lights on during Peak cut mode when local setting is activated Lighting pattern of L4 L5 and L6 indicates peak cut level Switch button Function or operation method SW1 MODE Switches between Local setting and Error code display SW2 SELECT Switches between the individual Local settings and the Error code displays SW3 ENTER Switches betwee...

Page 176: ...OWER MODE ERROR L1 L2 L3 L4 L5 L6 PUMP DOWN LOW NOISE PEAK CUT Blinks 9 times Sign Lights off 3 Press the SELECT switch button SW2 and adjust the LED lamp as shown below Then the LED lamp indicates the current setting L2 L3 LOW NOISE Blink LOW NOISE MODE 4 Press the ENTER switch button SW3 L2 L3 LOW NOISE LOW NOISE MOD E Sign Lights on 5 Press the SELECT switch button SW2 and adjust the LED lamps ...

Page 177: ...display Normal operation press the EXIT switch button once 2 Restart from the beginning of setting procedure NOTE In case of missing how many times you pressed the SELECT and ENTER switch buttons you must redo the setting procedure Return to Operation status display Normal opera tion by pressing the EXIT switch button once and restart from the beginning of the setting procedure 2 2 Local setting p...

Page 178: ...ELECT switch button SW2 and adjust the LED lamp as shown below Then the LED lamp indicates the current setting L2 L3 LOW NOISE Blink PEAK CUT MOD E 4 Press the ENTER switch button SW3 L2 L3 LOW NOISE PEAK CUT MODE Sign Lights on 5 Press the SELECT switch button SW2 and adjust the LED lamps as shown below 0 of rated input ratio 50 of rated input ratio 75 of rated input ratio 100 of rated input rati...

Page 179: ...ay Normal operation press the EXIT switch button SW4 NOTE When pressed number is lost during setting you must redo the setting procedure Return to Operation status display Normal operation by pressing the EXIT switch button once and restart from the beginning of the setting procedure 2 2 Local setting procedure 05 15 2 Function settings For outdoor unit AOTG34KMTC only FIELD WORKING FIELD WORKING ...

Page 180: ... signal External input and output UTY XCSXZ2 Operation Stop CN313 CN314 Dry contact Apply voltage Edge Pulse Forced stop Forced thermostat off CN313 Edge Operation status CN310 Error status CN311 Indoor unit fan operation status CN312 External heater output NOTE External input and output PCB cannot be used with Wireless LAN adapter simultaneously 05 16 3 External input and output For indoor unit F...

Page 181: ...e application Both types of connec tors cannot be used simultaneously Dry contact In case of internal power supply set the slide switch of SW301 to NON VOL side 1 2 3 Input 1 PCB Connected unit 1 2 3 Input 2 Connector CN313 Connector CN314 1 The switches can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA Apply voltage In case of external power supply set the slide switch of SW301...

Page 182: ...W on External input and output PCB is set to 1 1 2 Connector CN310 LED 1 Operation status PCB Resistor Connected unit 1 2 Connector CN311 LED 2 Error status Resistor 1 2 Connector CN312 LED 3 Indoor unit fan operation status Resistor When connecting with a device equipped with a power supply Example Rotary SW on External input and output PCB is set to 1 1 2 Connected device 1 Connector CN310 PCB C...

Page 183: ...t PCB CN310 CN311 CN312 0 1 1 Operation Stop Error status Indoor unit fan operation status 0 2 2 Error status Indoor unit fan operation status External heater output 1 8 3 9 A Setting prohibited 9 B Operation Stop Indoor unit fan operation status External heater output 10 C Operation Stop Error status External heater output 11 D Operation Stop Indoor unit fan operation status Error status NOTE Inp...

Page 184: ... On Off Indoor unit On CN313 In the case of Pulse input Function setting Rotary SW on External input and output PCB External input Input signal Command 46 00 1 External input and output PCB CN313 Pulse Operation CN314 Pulse Stop On On Off Operation Stop Remote controller On Off Indoor unit CN313 CN314 NOTES The last command has priority The indoor units within the same remote controller group oper...

Page 185: ...ut and output PCB External input Input signal Command 46 02 1 External input and output PCB CN313 Pulse Forced stop CN314 Pulse Normal On Off Operation Stop Remote controller On Off Forced stop Normal CN313 CN314 On On On Indoorunit NOTES When the forced stop is triggered indoor unit stops and Operation Stop operation by the re mote controller is restricted When forced stop function is used with f...

Page 186: ... of Pulse input Function setting Rotary SW on External input and output PCB External input Input signal Command 46 03 1 External input and output PCB CN313 Pulse Operation CN314 Pulse Stop R C disabled On On Off Operation Stop Remote controller On Off Indoor unit CN313 CN314 R C disabled Off On NOTE When Operation Stop mode 2 function is used with forming a remote controller group connect the same...

Page 187: ... External input Input signal Command 2 B C External input and output PCB CN313 Off On Thermostat off On Off Normal operation On Off On Off Compressor Room temp Set temp Input 3 4 Details of function 05 23 3 External input and output For indoor unit FIELD WORKING FIELD WORKING ...

Page 188: ...Off Normal The output is ON when an error is generated for the indoor unit Error Normal On Off CN311 312 Indoor unit Indoor unit fan operation status Rotary SW on External input and output PCB External output Output signal Command 1 External input and output PCB CN312 Off On Fan run On Off Fan stop Output signal Condition On The indoor unit fan is operating Low High Off The fan is stopped or durin...

Page 189: ...idate or invalidate of the setting are acceptable 1 External device means Hot water Electrical heater etc 2 Sensor activation Setting change from the factory setting is required Indoor unit fan setting will be on for safety reason without sensor activation of wired remote controller Installation configuration of individual connection External heating device is installed individually No use of indo...

Page 190: ... 12 C signal output is on and room temperature Tr increases above 21 C signal output is off and room temperature Tr decreases below 19 C signal output is on and room temperature Tr decreases below 10 C signal output is off Auxiliary heater control 2 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature Heater off Heater is off as shown in following diagram...

Page 191: ...hon Adjustable by function number 62 Operating temperature switching of external heaters All control temperatures will shift by adjusting Thon Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts Tr Ts Thon 0 5 C Tr Ts 0 5 C Operation status On 0 5 C 0 5 C On 12 V On Off Off 0 V Off Heating operation Heater Fan Air conditioner Room temperature Set temp 3 min or more NOTE ...

Page 192: ...er on Thon Adjustable by function number 62 Operating temperature switching of external heaters All control temperatures will shift by adjusting Thon Outdoor temperature zone boundary A and B Adjustable individually by function setting number 66 and 67 External heater output Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 5 C Tr Ts Tr Ts Thon 0 5 C Outdoor temperat...

Page 193: ...p only zone Combination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 8 C 6 C 18 C 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 3 4 Details of function 05 29 3 External input and output For indoor unit FIELD WORKING FIELD WORKING ...

Page 194: ...d Forced thermostat off Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of external heaters All control temperatures will shift by adjusting Thon Outdoor temperature zone boundary A Adjustable by function setting number 66 External heater output Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 5 C Tr Ts Tr Ts Thon 0 5 C...

Page 195: ...e Combination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 8 C 6 C 18 C 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 3 4 Details of function 05 31 3 External input and output For indoor unit FIELD WORKING FIELD WORKING ...

Page 196: ...f a commercial timer or on off switch to a connector on the control PCB of the outdoor unit NOTE Product performance may drop depending on some conditions such as the outdoor temper ature Circuit diagram example Outdoor unit control PCB Connected unit Example Switch Connector 1 2 Signal Locally purchased 10 m Contact capacity DC 24 V or more 10 mA or more Make the distance from the PCB to the conn...

Page 197: ...sed 10 m Contact capacity DC 24 V or more 10 mA or more Make the distance from the PCB to the connected unit within 10 m Construct a circuit as shown in this figure with using optional parts mentioned below Input signal On in Peak cut mode Input signal Off in normal operation To set the level of Peak cut mode refer to Peak cut mode on page 05 14 On Off On Off Input signal Peak cut mode Optional pa...

Page 198: ...gnal Outdoor unit control PCB Connected unit Connector 1 2 Locally purchased 10 m Vcc Load Vcc Power supply 1 Power supply Voltage Vcc DC 24 V or less 2 Load DC 500 mA or less Make the distance from the PCB to the connected unit within 10 m Error Normal On Off Error status Output signal Optional part Part name Model name Exterior External connect kit UTY XWZXZ3 External output wire 4 2 External ou...

Page 199: ... Load Vcc Power supply 1 Power supply Voltage Vcc DC 24 V or less 2 Load DC 500 mA or less Make the distance from the PCB to the connected unit within 10 m Operation Stop On Off Compressor status Output signal Optional part Part name Model name Exterior External connect kit UTY XWZXZ3 External output wire 4 2 External output 05 35 4 External input and output For outdoor unit AOTG34KMTC only FIELD ...

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