Fujitsu AOUH18LMAS1 Service Manual Download Page 90

Page: 90 / 215

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

2-30. E: A1.↓. Discharge temperature error (Outdoor unit)

- (03-48) -

2. Troubleshooting with error code

LESH

Summary of Contents for AOUH18LMAS1

Page 1: ...AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASUH18LMAS ASUH24LMAS OUTDOOR AOUH18LMAS1 AOUH24LMAS1 SR_AS052EF_03 2021 11 17 ...

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 11 01 SR_CH01_AS052EF_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: ...ing HIGH CFM m3 h 577 980 647 1 100 MED 489 830 530 900 LO 377 640 436 740 QUIET 300 510 371 630 Heating HIGH 589 1 000 730 1 240 MED 500 850 530 900 LO 377 640 436 740 QUIET 300 510 371 630 Type Q ty Crossflow fan 1 Motor output 59 78 Sound pressure level 3 Cooling HIGH dB A 46 46 MED 41 42 LO 35 37 QUIET 30 33 Heating HIGH 46 48 MED 41 38 LO 35 34 QUIET 30 30 Heat exchanger type Dimensions H D i...

Page 8: ...70 FDB 21 11 CDB 60 F B 15 56 C B and outdoor temperature of 17 FDB 8 33 CDB 15 F B 9 44 C B Pipe length 25 ft 7 5 m Height difference 0 ft 0 m Between outdoor unit and indoor unit Protective function might work when using it outside the operation range 2 Maximum current is maximum value when operated within the operation range 3 Sound pressure level Measured values in manufacturer s anechoic cham...

Page 9: ... 940 320 Gross 38 1 16 40 7 16 17 1 2 966 1 027 445 eight Net lb kg 117 53 Gross 134 61 Connection pipe Size Liquid in mm Ø3 8 Ø9 52 Gas Ø5 8 Ø15 88 Method Flare Pre charge length ft m 49 15 66 20 Max length 164 50 Max height difference 98 30 Drain hose Material LDPE Tip diameter in mm Ø1 2 Ø13 0 I D Ø5 8 to 11 16 Ø16 0 to 16 7 O D Operation range Cooling F C 14 to 115 10 to 46 Heating 5 to 75 15 ...

Page 10: ...inlet Ø3 1 8 80 1 15 16 50 1 15 16 50 2 3 8 60 16 15 16 430 2 1 16 52 Outline of indoor unit for pipe inlet Ø3 1 8 80 2 13 16 72 16 7 16 418 3 9 16 91 15 3 4 400 3 9 16 90 16 1 4 413 3 1 16 77 16 7 16 417 19 482 20 1 16 510 2 1 Indoor unit 01 4 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 11: ...der the product Condensa tion dripping from the product might get them wet and may cause damage or malfunction to the property Unit in mm 60 1 500 or more 71 1 800 or more 2 50 or more 2 40 or more 5 117 or more 71 or more 3 70 or more 7 160 or more Wall hook bracket Outline of the indoor unit 2 1 Indoor unit 01 5 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 12: ... 2 1 2 64 18 7 8 479 2 6 16 61 4 1 4 108 19 6 8 502 20 1 2 520 1 15 16 50 1 15 16 50 7 16 11 13 6 16 340 ø 8 0 ø 8 0 13 6 16 340 11 280 10 16 16 45 1 4 1 150 19 483 21 7 16 544 22 1 16 560 45 1 4 1 150 2 1 Indoor unit 01 6 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 13: ...he product Conden sation dripping from the product might get them wet and may cause damage or malfunction to the property 2 1 2 63 or more 3 8 1 80 or more 1 15 16 50 or more 1 15 16 50 or more 2 3 4 70 or more Outline of unit 5 1 2 140 or more 59 1 16 1 500 or more 70 7 8 1 800 or more Unit in mm 2 1 Indoor unit 01 7 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 14: ... 1 7 8 48 1 15 16 50 2 5 16 59 5 3 16 131 3 3 4 95 3 3 4 96 5 1 2 140 2 Ф7 8 22 Cable port 2 Ф7 8 22 Cable port 2 Ф1 8 28 Cable port 2 Ф1 8 28 Cable port Pipe port Pipe port 25 9 16 650 13 7 8 352 3 way valve Gas 3 way valve Liquid 1 1 4 48 Liquid A Detail A 5 5 8 143 5 13 16 147 2 3 16 55 Liquid 1 9 16 40 12 5 8 320 10 7 16 265 13 15 16 354 10 1 2 266 Liquid 11 5 8 296 Gas 2 1 2 64 Gas Rear view ...

Page 15: ...2 TECHNICAL DATA AND PARTS LIST 2021 11 17 SR_CH02_AS052EF_04 ...

Page 16: ... 3 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 10 4 Accessories 02 14 4 1 Indoor unit 02 14 4 2 Outdoor unit 02 16 5 Refrigerant system diagrams 02 17 5 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 17 6 Wiring diagrams 02 18 6 1 Indoor unit 02 18 6 2 Outdoor unit 02 19 7 PC board diagrams 02 20 7 1 Models ASUH18LMAS and ASUH24LMAS 02 20 7 2 Models AOUH18LMAS1 and AOUH24LMAS1 02 21 ...

Page 17: ...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 18: ...ts list 2 1 Model ASUH18LMAS Exterior parts 1 2 2 7 13 14 15 18 17 20 19 a b c 15 16 8 5 9 10 9 3 6 4 11 12 2 1 Model ASUH18LMAS 02 2 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 19: ...er 10 9317250009 Air cleaning filter assy 11 9332438895 ireless remote controller 12 9318912005 Remote controller holder 13 9384977007 Front panel total assy 14 9387756210 Intake grille assy 15 9323340008 Air filter 16 9333719009 Grille clamper L 17 9333704005 Grille clamper R 18 9323341036 Under cover L 19 9333608006 Bush 20 9383730030 Louver spring a Front panel b Panel cover c Front panel B 2 1...

Page 20: ...ssis 59 61 61 61 51 50 72 62 63 d f e 71 66 68 67 65 64 a 54 53 b 55 56 58 57 c 70 69 59 60 52 2 1 Model ASUH18LMAS 02 4 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 21: ...03821005 DC fan motor 63 9387488043 Cable guide 64 9387714012 Gear case assy 65 9901011016 Stepping motor 66 9383728006 R and L louver SPM assy 67 9901011023 Stepping motor 68 9387590142 Drain pan total assy 69 9316177017 Drain cap 70 9316904002 Drain hose assy 71 9333628004 Bearing D assy 72 9387055054 Crossflow fan assy 9901010071 ire with connector CN75 on Main PCB LAN adapter option a Control ...

Page 22: ...2 2 Model ASUH24LMAS Exterior parts 10 9 1 a 8 8 7 13 3 4 5 6 12 11 11 11 11 2 2 2 Model ASUH24LMAS 02 6 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 23: ...387074017 ire cover assy 7 9315212016 Air clean filter assy 8 9386960007 Air filter 9 9332438895 ireless remote controller 10 9318912005 Remote controller holder 11 9386986007 Screw cap 12 9387072211 Front panel total assy 13 9382114039 Intake grille assy a Front panel 2 2 Model ASUH24LMAS 02 7 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 24: ... Chassis 59 50 69 68 a b c d e f 52 56 57 51 55 54 58 53 64 66 61 62 63 67 h 60 65 65 65 g 2 2 Model ASUH24LMAS 02 8 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 25: ...n hose insulation T 60 9387063004 Link holder assy 61 9900139186 Step motor 62 9387062007 Gear cover assy 63 9900384234 Step motor 64 9387060034 Casing assy 65 9318743012 Pipe bracket 66 9388540009 Drain hose assy 67 9316177017 Drain cap 68 9387055009 Crossflow fan assy 69 9306628017 Bearing C assy a Box shield assy b Control box c PCB holder A d Control cover e Motor cover f Motor cover g Cable g...

Page 26: ...S1 and AOUH24LMAS1 Exterior parts and chassis 13 8 2 1 9 16 24 17 18 15 14 23 19 20 21 22 5 4 3 3 10 12 11 25 b a 7 6 3 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 10 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 27: ...Emblem rear 19 9383863035 Front panel assy 20 9350680009 Fan guard assy 21 9383336003 Propeller fan 22 9603732011 DC fan motor 23 9383862007 Motor bracket assy 24 9383882005 Left panel sub assy 25 9374420711 Condenser sub assy 9711198006 ire with connector P108 on Main PCB Terminal 9711203038 ire with connector P660 on Main PCB P662 on Inverter PCB 9711204004 ire with connector P661 on Main PCB P6...

Page 28: ...sor 59 58 55 61 60 b 54 50 51 A A 52 53 a 56 57 62 B 63 65 64 65 64 65 64 66 B 3 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 12 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 29: ...ant volume adjustment unit 58 9970209000 Expansion valve coil 59 9370947328 Expansion valve assy 60 9379079013 3 way valve assy 61 9377958037 3 way valve assy 62 9900985035 Thermistor Compressor temp 63 9810028006 Thermistor stopper 64 9379179096 Rubber washer G 65 9377973016 Special nut 66 9810666000 Compressor assy a Joint pipe D b iring fixation unit 3 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 13...

Page 30: ...ing manual 1 Tapping screw large 5 Installation manual 1 Tapping screw small 2 Remote controller 1 Battery 2 Remote controller holder 1 Filter holder 2 Cloth tape 1 Air cleaning filters 1 all hook bracket 1 4 1 Indoor unit 02 14 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ...sulation 1 Installation manual 1 Cloth tape 1 all hook bracket 1 Tapping screw large 8 Remote controller 1 Tapping screw small 2 Battery 2 Air cleaning filters 1 Remote controller holder 1 Filter holder 2 4 1 Indoor unit 02 15 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 32: ...ls AOUH18LMAS1 and AOUH24LMAS1 Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain cap 3 Drain pipe 1 4 2 Outdoor unit 02 16 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 33: ... Out temperature ThD ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI Thermistor Heat Exchanger Med temperature ThHM ThHM Heat exchanger 3 way valve 3 way valve Pressure switch 4 way valve Strainer Strainer Expansion valve INDOOR Heat exchanger OUTDOOR Sub accumulator Compressor 5 1 Models AOUH18LMAS1 and AOUH24LMAS1 02 17 5 Refrigerant system diagrams TECHNICAL DATA AND P...

Page 34: ...6 Wiring diagrams 6 1 Indoor unit Models ASUH18LMAS and ASUH24LMAS 6 1 Indoor unit 02 18 6 iring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 35: ...6 2 Outdoor unit Models AOUH18LMAS1 and AOUH24LMAS1 6 2 Outdoor unit 02 19 6 iring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 36: ...N309 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 COMMUNICATION PCB K14YM 1500HSE CA0 EX OUT1 EX OUT2 EX OUT3 EX IN1 EX IN2 FLASH AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE AWG28 WHITE 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 CN9 B10B PASK 1 WHITE CN2...

Page 37: ...2 WHITE BLACK WHITE YELLOW BROWN RED DC FAN MOTOR FM HP SW1 PRESSURE SWITCH 1 HIGH PRESSURE EMI FILTER G ZCAT2132 1130 1 TURN COMPRESSOR COMP P400 U P401 V P402 W UL3271 AWG12 RED UL3271 AWG12 WHITE UL3271 AWG12 BLACK HEATSINK THERMISTOR UL3271 AWG14 RED FLASH P600 B128 PASK 1 WHITE DC13V 3 DC13V 3 D P660 B05B PASK 1 WHITE DC5V 3 C 5 4 3 2 1 DC13V 4 4 3 2 1 D P662 B05B PASK 1 WHITE P663 B04B PASK ...

Page 38: ...7 2 Models AOUH18LMAS1 and AOUH24LMAS1 02 22 7 PC board diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 39: ...3 TROUBLESHOOTING 2021 11 17 SR_CH03_AS052EF_01 ...

Page 40: ... Indoor unit 03 24 2 11 E 41 Room temperature sensor error Indoor unit 03 26 2 12 E 42 Indoor unit heat exchanger sensor error Indoor unit 03 27 2 13 E 51 Indoor unit fan motor error Indoor unit 03 28 2 14 E 58 Intake grille error Indoor unit 03 29 2 15 E 62 Outdoor unit main PCB error Outdoor unit 03 30 2 16 E 63 Inverter error Outdoor unit 03 31 2 17 E 64 PFC circuit error Outdoor unit 03 32 2 1...

Page 41: ...8 4 3 Network communication error between wireless LAN router and LAN adapter 03 69 4 4 E 18 Communication error 03 71 4 5 E 18 ireless LAN adapter non energized 03 73 4 6 ireless LAN adapter Sleep mode Indoor unit 03 74 4 7 Mobile app setting method 03 75 5 Service parts information 03 80 5 1 Compressor 03 80 5 2 Inverter compressor 03 81 5 3 Outdoor unit Electronic Expansion Valve EEV 03 82 5 4 ...

Page 42: ......

Page 43: ...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 44: ...UTO button error Indoor unit 3 times 5 times Continuous 35 E 3A Indoor unit communication circuit error Indoor unit 3 times 10 times Continuous 3A E 41 Room temperature sensor error Indoor unit 4 times 1 times Continuous 41 E 42 Indoor unit heat exchanger sensor error Indoor unit 4 times 2 times Continuous 42 E 51 Indoor unit fan motor error Indoor unit 5 times 1 times Continuous 51 E 58 Intake gr...

Page 45: ...nit 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 A5 Low pressure error Outdoor unit 10 times 5 times Continuous A5 E AC Heat sink temperature error Outdoor unit 10 times 12 times Continuous AC 1 3 Error code table Indoor unit and wired remote controller 03 3 1 Error cod...

Page 46: ...r in wired remote controller Indoor unit 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 f...

Page 47: ...l error Outdoor unit 2 9 5 E 97 Outdoor unit fan motor 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 A5 Low pressure error Outdoor unit 2 10 5 E AC Heat sink temperature error Outdoor unit 2 10 12 Light on Light off n n Times blinking 1 4 Error code table Outdoor unit 03 5 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 48: ...rror contents Error contents Wireless LAN LED orange Error code E 18 External communication error between indoor unit and LAN adapter On Connection information with router is available Off Connection information with router is unavailable 18 ireless LAN adapter error Flashing slow No error Network communication error between wireless LAN router and LAN adapter On No error E 18 Communication error ...

Page 49: ...itioning refer to as follows hen 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 6 Error code table Mobile app 03 7 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 50: ...door unit fan motor error E 51 Indoor unit fan motor error Indoor 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 Discharge temp sensor error E 71 Discharge thermistor error Outdoor unit 71 1 Outdoor ...

Page 51: ...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 7 Error message for wireless LAN control Mobile app 03 9 1 Error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 52: ...e Make sure the device is ready for registration The air conditioner is not connected to the router Enter the i Fi setting on the smart device then check if the SSID of the air conditioner AP F 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 interne...

Page 53: ...rt device Enable i 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 i 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 i Fi setu...

Page 54: ...itioner 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 not ...

Page 55: ...External cause Main 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 open cable or mis wiring If there is an abnormal conditio...

Page 56: ...03 80 If outdoor fan motor is abnormal replace outdoor unit fan motor and main PCB If the checked parts are normal replace the main PCB End Check point 1 2 Check external cause such as noise Check the complete insulation of the grounding Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End 2 1 E 11...

Page 57: ...in PCB failure Indoor unit fan motor failure Check point 1 Reset the power and operate Does error indication show again If no go to Check point 1 2 Check point 2 Check connection Check any loose or removed connection line of indoor unit and outdoor unit Check connection condition is control unit If there is loose connector open cable or mis wiring If there is an abnormal condition correct it by re...

Page 58: ...motor in Service parts informa tion on page 03 80 If indoor unit fan motor is abnormal replace indoor unit fan motor and 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 2 E 11 Seria...

Page 59: ... 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 5 V for 18 model or DC 12 V for 24 model 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 Repl...

Page 60: ...failure Main PCB Check point 1 Check the connection Check any loose or removed connection between the main PCB to the AN adapter 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 LAN adapter and the main PCB If there is loose con nector open cable or mis wiring Check point 2 Replace the LAN adapter ...

Page 61: ...lied refrigerant information from indoor unit 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 outd...

Page 62: ... Check point 1 ire 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 rong remote controller group setting The given address number by auto setting 00 and the manual set number except 00 are not existi...

Page 63: ...ause rong 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 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 damage...

Page 64: ...ose connector or incorrect wiring Check any shortage or corrosion on PCB Check point 3 Replace main PCB Change main PCB End Check point 1 2 Check external cause such as noise Check if the ground connection is proper Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End NOTE EEPROM EEPROM Electronica...

Page 65: ...or more seconds 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...

Page 66: ... the power supply check and correct as follows Indoor unit Check the connection of the terminal between the remote controller and indoor unit or between indoor units and check if there is a disconnection or short of the cable Check point 2 Check the indoor unit main PCB Check terminal voltage of CN2 terminal 1 3 of UT T R Z2 Communication kit for 18 model Check voltage at CN12 of main PCB terminal...

Page 67: ...e communication PCB is not connected and JM9 is disconnected 3A error is displayed If the communication PCB is connected and JM9 is connected the 2 wire remote controller does not work If the DIP switch is 3 wire side the 2 wire type remote controller does not work 3 wire type remote main PCB If the DIP switch is 2 wire side the 3 wire type remote controller does not work 2 10 E 3A Indoor unit com...

Page 68: ...ck 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 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit dia...

Page 69: ...nection 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 heat exchanger thermistor resistance value refer to Thermistor resis tance values on page 03 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB...

Page 70: ...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 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 in...

Page 71: ...ure Shorted connector wire Main PCB failure Check point 1 Check limit switch Check operation of Micro switch any blocking by dust etc Remove Micro switch and check ON OFF switching operation by using a meter If micro switch is detective replace it Check point 2 Check connector CN11 wire Check loose contact of CN11 shorted wire pinched wire Replace micro switch if the wire is abnormal Check point 3...

Page 72: ...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 correctly o...

Page 73: ...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 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...

Page 74: ...e 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 Check the complete insulation of grounding Check point...

Page 75: ...it Refer to Error code table Outdoor unit on page 03 4 Detective actuator Outdoor unit Main PCB hen 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 18 E 65 Trip terminal L error Outdoor unit 03 33 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 76: ...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 discharge temperature thermistor resistance value refer to Thermistor resistance values on page 03 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Che...

Page 77: ...lure Check Point 1 Check the connector connection and cable open Connector connection state check Cable open check Check Point 2 Check the thermistor For the outdoor unit heat exchanger thermistor resistance value refer to Ther mistor resistance values on page 03 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diag...

Page 78: ...oneous 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 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Check volt...

Page 79: ...r 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 Heat sink thermistor resistance value refer to Thermistor resistance val ues on page 03 88 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of inverter PCB Make sure circuit diagram ...

Page 80: ...ns 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 and Outdoor Voltage drop ...

Page 81: ...ure 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 Chan...

Page 82: ...s 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 output voltage of main PCB Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC 5 0 V 5 NOTE For details of thermistor connector refer to iring diagrams in Chapter 2 TECHNICAL DATA AND PARTS ...

Page 83: ...ger excessive rise of ambient temperature Main PCB failure Inverter compressor failure lock winding short Inverter PCB 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...

Page 84: ...lure Main PCB failure Compressor failure Check point 1 Check noise from compressor Turn on power and check operation noise If an abnormal noise show replace compres sor Check point 2 Check connection of around the compressor components For compressor terminal main PCB Check if connector is removed Check erroneous connection Check if cable is open Refer to inverter compressor in Service parts infor...

Page 85: ...ation failure Motor protection by surrounding temperature rise Inverter PCB failure 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 temperature around motor Check excessively high temperature around the moto...

Page 86: ...to iring diagrams in Chapter 2 TECHNICAL DATA AND PARTS LIST on page 02 18 Read wire DC voltage Red Black 280 V AC 220 V 10 to 373 V AC 240 V 10 hite Black 15 1 5 V If the voltage is not correct replace inverter PCB Check point 5 Replace main PCB If Check point 1 to 4 do not improve the symptom change main PCB End 2 28 E 97 Outdoor unit fan motor error Outdoor unit 03 44 2 Troubleshooting with err...

Page 87: ...Room temperature thermistor 4 way valve Forecast of cause Air filter clogged Connector connection failure Thermistor failure Coil failure 4 way valve failure Main PCB failure Check point 1 Check air filter condition Check air filter dirty If the air filter dirty clean up the air filter Check point 2 Check connection of connector Check if connector is removed Check erroneous connection Check if the...

Page 88: ...Ω If it is open or abnormal resistance value replace solenoid coil 4 way valve Check each piping temperature and the location of the valve by the temperature difference If the value location is not proper replace 4 way valve Check point 5 Replace main PCB If Check Point 1 to 4 do not improve the symptom replace main PCB End 2 29 E 99 4 way valve error Outdoor unit 03 46 2 Troubleshooting with erro...

Page 89: ...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 any of the electronic expansion valve EEV capillary tube or strainer or all Check if EEV open or there is a capillary tube defect Refer to outdoor unit Electrronic Expansion Valve EEV or Capillary tube in Service parts in formation on page 03 80 Check the strainer clog...

Page 90: ...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 30 E A1 Discharge temperature error Outdoor unit 03 48 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 91: ...ion 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 rotes...

Page 92: ...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 31 E A5 Low pressure error Outdoor unit 03 50 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 93: ...e rise Heat sink temp thermistor defective Check point 1 Check the heat sink state Heat sink foreign matter soiling check Check point 2 Check the foreign matter and ambient temperature of heat exchanger Heat exchange foreign matter check Ambient temperature not raised by effect of other heat sources Discharged air not sucked in Check point 3 Check the heat sink temperature thermistor The heat sink...

Page 94: ...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 187 to 253 V appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse in fi...

Page 95: ...ausing 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 main PCB If fuse is open check if the wiring between termina...

Page 96: ... 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 controller and controller PCB Check voltage at CN2 terminal 1 3...

Page 97: ...heck 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 if EEV open or the...

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 56 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 ater leaking 03 58 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 101: ...95 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 Check Point 3 Check effects of function setting change Is the space still too warm in relation to set point Check Point 4 Verify room temperature sensing location Do you want room temperature sensed at the wired remote controller ired remote sensor or by they build in sensor inside the unit Indoor unit sensor If indoor unit senso...

Page 102: ...l for indoor unit sensor NOTE For details of function setting number 31 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 End Check point 8 Check the remote controller display Is the Thermo Sensor Icon displayed on the screen If no go to Check point 8 1 Check point 9 Check the function Setting Is function 48 Room temperature sensor switching set to 01 If no go to Check point 9 1 3 ...

Page 103: ...ill too warm go to Check point 12 End Check point 8 1 Check function setting Is function 42 Indoor room temperature sensor switching function set to 01 NOTE For details of function setting number 42 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 Check point 8 2 Check the remote controller Press and hold down the THERMO SENSOR button to turn on the icon If the space is still too ...

Page 104: ...function setting improve temperature control If the space is still too warm go to Check point 10 End Check point 12 Check function setting Using the table on the right adjust temperature correction by changing function setting 36 Room Temperature control for wired remote controller sensor NOTE For details of function setting number 36 refer to Function settings in Chapter 5 FIELD ORKING on page 05...

Page 105: ...95 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 Check Point 3 Check effects of function setting change Is the space still too cool in relation to set point Check Point 4 Verify room temperature sensing location Do you want room temperature sensed at the wired remote controller ired remote sensor or by they build in sensor inside the unit Indoor unit sensor If indoor unit senso...

Page 106: ...l for indoor unit sensor NOTE For details of function setting number 30 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 End Check point 8 Check the remote controller display Is the Thermo Sensor Icon displayed on the screen If no go to Check point 8 1 Check point 9 Check the function Setting Is function 48 Room temperature sensor switching set to 01 If no go to Check point 9 1 3 ...

Page 107: ...ill too cool go to Check point 12 End Check point 8 1 Check function setting Is function 42 Indoor room temperature sensor switching function set to 01 NOTE For details of function setting number 42 refer to Function settings in Chapter 5 FIELD ORKING on page 05 1 Check point 8 2 Check the remote controller Press and hold down the THERMO SENSOR button to turn on the icon If the space is still too ...

Page 108: ...function setting improve temperature control If the space is still too cool go to Check point 10 End Check point 12 Check function setting Using the table on the right adjust temperature correction by changing function setting 35 Room Temperature control for wired remote controller sensor NOTE For details of function setting number 35 refer to Function settings in Chapter 5 FIELD ORKING on page 05...

Page 109: ...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 110: ...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 mobil...

Page 111: ...oint 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 et...

Page 112: ...ile app refer to Mobile app setting method on page 03 75 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 LAN adapter 03 70 4 Troublesh...

Page 113: ...ure 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 transmissio...

Page 114: ...orrect 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 of...

Page 115: ...here 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 terminal 1 2 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 LA...

Page 116: ...ireless SSID have passed 1 hour Forecast of cause Sleep mode Check point 1 Cheak the sleep mode Press the ireless LAN adapter setting button the 3 seconds or more If the display pattern is changed as follows refer to Network communication error between wire less LAN router and LAN adapter on page 03 69 LED 1 green on LED 2 orange flashing fast 4 6 ireless LAN adapter Sleep mode Indoor unit 03 74 4...

Page 117: ...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 es button 5 Deregstration of the air conditioner is completed 4 7 Mobile app setting method 03 75 4 Troubleshooting with error code For wireless LAN adapter TROUBLESHOOTING TROUBLESHOOTING ...

Page 118: ...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 119: ...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 7 Mobile app setting method 03 77 4 Troubleshooting with error code For wireless LAN adapter TROUBLESHOOTING TROU...

Page 120: ...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 hen setup is completed both of t...

Page 121: ... 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 XYZ...

Page 122: ...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 or capillary tube in this chap ter End Check main PCB conn...

Page 123: ...Compressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 160 Ω 8 68 F 20 C R U T W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 5 2 Inverter compressor 03 81 5 Service parts info...

Page 124: ... 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 and outlet Pipe...

Page 125: ...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 83 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 126: ...cuit 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 Earth terminal GND 5 hite Control voltage Vcc 6 ellow Speed command Vsp 7 Blue Feed back FG 5 4 Indoor unit fan mo...

Page 127: ...cuit 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 DC voltage 4 Earth terminal 1 Red DC voltage Vm 2 No function 3 No function 4 Black Earth terminal GND 5 hite Control voltage Vcc 6 ellow Speed command Vsp 7 Brown Feed back FG 5 5 Outdoor unit fan...

Page 128: ...ct C H Pressure Characteristics of pressure switch Pressure switch 1 Contact Short Open 4 2 4 05 MPa Contact Open Short 3 2 0 15 MPa 18 24 model P770 5 6 Pressure switch 03 86 5 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 129: ...t 3 Check operation of 4 way valve Check each piping temperature and confirm the location of the valve by the temperature difference Heating Operation Heating Operation AC SOLENOID COIL 4WAY VALVE HOT GAS HOT GAS ON Cooling Operation Cooling Operation AC SOLENOID COIL 4WAY VALVE HOT GAS HOT GAS OFF If the valve location is not proper replace 4 way valve Check Point 4 Replace main PCB If none of Ch...

Page 130: ...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 131: ... 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 132: ...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 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 0 115 0 2 ...

Page 133: ... 0 0 84 4 25 167 0 75 0 0 71 4 35 176 0 80 0 0 61 4 43 Heat exchanger Middle temperature thermistor Temperature F C Resistance kΩ Voltage V 22 0 30 0 95 57 0 24 12 0 25 0 68 89 0 32 4 0 20 0 50 31 0 43 5 0 15 0 37 19 0 57 14 0 10 0 27 81 0 73 23 0 5 0 21 02 0 92 32 0 0 0 16 05 1 14 41 0 5 0 12 38 1 39 50 0 10 0 9 63 1 65 59 0 15 0 7 56 1 93 68 0 20 0 5 98 2 21 77 0 25 0 4 77 2 49 86 0 30 0 3 84 2 ...

Page 134: ...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 12 64 3 76 77 0 25 0 10 00 3 97 86 0 30 0 7 97 4 14 95 0 35 0 6 40 4 28 104 0 40 0 5 18 4 41 113 0 45 0 4 21 4 51 122 0 50 0 3 45 4 59 131 0 55 0 2 85 4 65 6 2 Outdoor unit 03 92 6 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...

Page 135: ...4 CONTROL AND FUNCTIONS 2021 11 17 SR_CH04_AS052EF_01 ...

Page 136: ...control 04 21 6 1 Defrost operation in heating operation stopped 04 22 7 Various control 04 23 7 1 Auto restart 04 23 7 2 MANUAL AUTO operation 04 23 7 3 Forced cooling operation 04 24 7 4 MIN HEAT operation 04 24 7 5 ECONOM operation 04 24 7 6 PO ERFUL operation 04 25 7 7 Fresh air control 04 25 7 8 Compressor preheating 04 25 7 9 External electrical heater control 04 26 7 10 Electronic expansion...

Page 137: ...8 6 Low outdoor temperature protection 04 33 8 7 High temperature and high pressure release control 04 33 CONTENTS continued ...

Page 138: ......

Page 139: ...emperature 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 rotation number of compressor is controlled within the range shown in the table below However the maximum rotation number is limited in the range shown in the figure below based on the indoor fan mode and the outd...

Page 140: ...35 6 F 2 C Unit rps Model name Outdoor temperature zone Indoor unit fan mode HIGH MED LOW QUIET ASUH18LMAS A zone 63 34 26 18 B zone 63 34 26 18 C zone 63 34 26 18 D zone 39 39 32 28 E zone 39 39 32 28 F zone 39 39 32 28 ASUH24LMAS A zone 80 68 58 46 B zone 80 68 58 46 C zone 80 68 58 46 D zone 58 54 50 46 E zone 58 54 50 46 F zone 54 54 50 46 1 1 Cooling operation 04 2 1 Rotation number control o...

Page 141: ...er of compressor range Unit rps Model name Minimum frequency Maximum frequency ASUH18LMAS ASUH24LMAS 10 130 1 3 Dry operation The rotation number of compressor shall change according to the temperature set temperature and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the table below Zone is defined by set temperature and room temperature R...

Page 142: ...ency 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 Rotation number of compressor at normal start up 04 4 1 Rotation number control of compressor CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 143: ...3 C Model name Outdoor temperature zone Limitation of compressor frequency AOUH18LMAS1 A zone 55 rps B zone 50 rps C zone 36 rps D zone 34 rps E zone 30 rps F zone 26 rps G zone 19 rps H zone 19 rps I zone 21 rps J zone 24 rps K zone 29 rps AOUH24LMAS1 A zone 60 rps B zone 55 rps C zone 52 rps D zone 45 rps E zone 36 rps F zone 28 rps G zone 21 rps H zone 19 rps I zone 21 rps J zone 24 rps K zone ...

Page 144: ...me Outdoor temperature zone Limitation of compressor frequency AOUH18LMAS1 AOUH24LMAS1 A zone 71 rps B zone 53 rps C zone 44 rps D zone 39 rps E zone 29 rps F zone 23 rps G zone 21 rps 1 5 Rotation number of compressor limitation by outdoor temperature 04 6 1 Rotation number control of compressor CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 145: ...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 146: ...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 147: ...peration 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 modes QUIET LO MED ...

Page 148: ...f 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 HIGH or setting fan mode Cool air prevention S LOW Indoor heat exchanger temperature drops 86 0 F 30 C MED or setting fan mode LOW or setting fan mode Lower speed is selected 98 6 F 37 C 102 2 F 39 C 107 6 F 42 ...

Page 149: ...6 0 F 30 C 98 6 F 37 C 102 2 F 39 C 107 6 F 42 C 98 6 F 37 C 89 6 F 32 C 82 4 F 28 C 93 2 F 34 C MIN HEAT operation Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops AUTO LOW 102 2 F 39 C 93 2 F 34 C 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 ...

Page 150: ...670 7 570 620 6 540 590 5 510 480 4 480 410 3 480 340 2 400 270 1 200 200 S HIGH 830 hen the compressor frequency increases the outdoor fan speed also changes to the higher speed hen 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 aft...

Page 151: ...00 S HIGH 830 hen the compressor frequency increases the outdoor fan speed also changes to the higher speed hen 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 830 rpm 3 2 Outdoor fan control 04 13 3 Fan control ...

Page 152: ... will be hori zontal 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 m...

Page 153: ...bottom end To select horizontal airflow swing operation hen the swing signal is received the horizontal airflow direction louver starts to swing Swinging range All mode 1 5 hen the indoor fan is S LO 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 hen the swing signal is received both of the ve...

Page 154: ...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 155: ...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 156: ...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 157: ... 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 158: ...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 159: ...Tn Tnb 3 6 F 2 C Tn 14 0 F 10 C Tn 13 0 F 25 C Ta 4 0 F 20 C Tn 19 4 F 7 C or Tn 13 0 F 25 C Ta 4 0 F 20 C 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 Tn 26 6 F 3 C Tn 23 0 F 5 C Count of the compressor off 40 times ...

Page 160: ...s are satisfied in heating operation Compressor operation integrating time 30 minutes or more Compressor continuous operation time 10 minutes or more Outdoor unit heat exchanger temperature 24 8 F 4 C or less Release condition The defrost operation is released when either one of the conditions below is satisfied Outdoor unit heat exchanger temperature after 1 minute or later since compressor start...

Page 161: ... setting 7 2 MANUAL AUTO operation hen the wireless remote controller is lost or battery power dissipated this function will work without the remote controller hen MANUAL AUTO button is pressed more than 3 seconds and less than 10 seconds MANUAL AUTO operation starts as shown in the table below To stop operation press the MANUAL AUTO button for 3 seconds Operation mode Auto changeover Fan mode AUT...

Page 162: ...est operation By performing one of the following action test operation will be canceled Pressing the remote controller START STOP button Pressing FORCED COOLING OPERATION button for 3 seconds 60 minutes passed after starting forced cooling operation NOTE hen HEAT operation is selected on the remote controller during forced cooling operation heating test run will begin in about 3 minutes 7 4 MIN HE...

Page 163: ... or Operation time has passed 20 minutes 7 7 Fresh air control The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as below Operation Stop Operation Stop Fan motor Indoor unit Fan motor for Fresh Air 7 8 Compressor preheating By preheating the compressor warm airflow is quickly discharged when the operation is started Triggering condition 1 Outdoor temperature ...

Page 164: ...ing mode Between 39 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 7 11 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 30 Retry set ...

Page 165: ...s 00 Indoor unit 00 000 Suction temp 01 F or C 00 001 Room temp 01 F or C hen the wired remote controller thermistor is enabled temperature of the wired remote controller thermistor is displayed 00 002 ired remote controller detected temp 01 F or C 00 003 ireless remote controller detected temp 01 F or C Temperature detected by wireless remote controller 00 004 Discharge air temp 01 F or C 00 005 ...

Page 166: ...ff 1 On hen the function setting 46 is not set NOTE Available only for external input port of the indoor unit 00 144 External thermostat off External input 00 0 Off 1 On 00 145 Cooling operation on External input 00 0 Off 1 On 00 146 Cooling operation off External output 00 0 Off 1 On NOTE The value is output even if the function setting or rotary switch is not set 00 155 Operation or Stop On Off ...

Page 167: ...Heat sink temp 01 F or C 01 009 Liquid pipe temp 3 Sub cool heat exchanger inlet 01 F or C 01 010 Liquid pipe temp 4 Sub cool heat exchanger outlet 01 F or C 01 011 2 way valve temp For multi split type 01 F or C 01 012 3 way valve temp For multi split type 01 F or C 01 040 Discharge pressure 02 MPa 01 041 Suction pressure 02 MPa 01 042 Gas pipe pressure for outdoor unit 02 MPa 01 050 Fan 1 rotati...

Page 168: ... unit fan 1 total operation hours 11 h 01 115 Outdoor unit fan 2 total operating hours 11 h 01 145 Outdoor low noise input External input 00 0 Off 1 On 01 146 Outdoor peak cut External input 00 0 Off 1 Mode 4 100 2 Mode 3 75 3 Mode 2 50 4 Mode 1 Forced thermostat off 01 147 Demand response External input 00 0 Normal 1 DRM1 2 DRM2 3 DRM3 01 148 Switching cooling and heating mode External input 00 0...

Page 169: ...s blinking Trigger condition 219 2 F 104 C Compressor frequency 14 rps 120 seconds Release condition 213 8 F 101 C Compressor protection temperature 230 0 F 110 C 8 2 Anti freezing control cooling and dry mode The rotation number of compressor is decrease in cooling and dry mode when the indoor unit heat exchanger temperature sensor detects the temperature lower than the trigger condition hen the ...

Page 170: ... A 122 0 F 50 C Ta 125 6 F 52 C 10 0 A 9 5 A 114 8 F 46 C Ta 122 0 F 50 C 13 0 A 12 5 A 107 6 F 42 C Ta 114 8 F 46 C 14 0 A 13 5 A Ta 107 6 F 42 C 14 5 A 14 0 A Heating 68 0 F 20 C Ta 11 0 A 10 5 A 60 8 F 16 C Ta 68 0 F 20 C 13 0 A 12 5 A Ta 60 8 F 16 C 15 0 A 14 5 A 8 4 Compressor temperature protection hen the compressor temperature sensor detects higher than the trigger condition below the com ...

Page 171: ...Operation Zone A Compressor is stopped Zone B The compressor frequency is decreased 7 rps 120 sec Zone C The protection is released and the operation is returned to normal mode Zone D 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 145 4 F 63 C BC 131 0 F 55 C CD 127 4 F 53 C DE 122...

Page 172: ...8 7 High temperature and high pressure release control 04 34 8 Various protections CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 173: ...5 FILED WORKING 2021 11 17 SR_CH05_AS052EF_01 ...

Page 174: ...ler 05 1 1 2 Custom code setting for wireless remote controller 05 10 1 3 Switching the temperature unit of remote controller 05 11 2 External input and output 05 12 2 1 External input 05 13 2 2 External output 05 15 2 3 Combination of external input and output 05 17 2 4 Details of function 05 19 ...

Page 175: ...nged if invalid numbers or setting values are selected hen optional wired remote controller is used refer to the installation manual enclosed with the remote controller Entering function setting mode hile pressing the PO ERFUL 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 setting valu...

Page 176: ... shipment If you do not know the air conditioner custom code setting try each of the custom codes until you find the code that operates the air conditioner 1 1 Function settings by using remote controller 05 2 1 Function settings FIELD WORKING FIELD WORKING ...

Page 177: ... switching of external heaters 12 62 Operating temperature switching of external heaters 13 66 Outdoor temperature zone boundary temperature A 14 67 Outdoor temperature zone boundary temperature B 15 71 Standby time for auxiliary equipment operation 16 72 Heat pump backup setting 17 73 Emergency heat for external output terminal 18 95 Heat insulation condition building insulation 19 96 Special coo...

Page 178: ... 80 F 78 F 2 F The temperature correction values show the difference from the Standard setting 00 manufactur er s recommended value hen Function 95 01 High insulation is set the Standard setting 00 will be the same as No cor rection 0 0 F 0 0 C 01 Function number Setting value Setting description Factory setting 30 For cooling 31 For heating 00 Standard setting 01 No correction 0 0 F 0 0 C 02 1 F ...

Page 179: ... 5 C Less cooling More heating 11 2 F 1 0 C 12 3 F 1 5 C 13 4 F 2 0 C 14 5 F 2 5 C 15 6 F 3 0 C 16 7 F 3 5 C 17 8 F 4 0 C 4 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 ...

Page 180: ...ue Setting description Factory setting 48 00 Both 01 ired remote controller 9 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 th...

Page 181: ...eater 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 control by outdoor temperature 3 06 Auxiliary heat pump control 07 Auxiliary heat pump control by outdoor temperature 1 08 Auxiliary heat pump control by outdoor temperature 2 09 Auxiliary heat pump control by outdoor tempera...

Page 182: ...r control by outdoor temperature 1 is performed on the indoor unit For details refer to External heater output in Chapter 2 4 Details of function on page 05 19 Function number Setting value Setting description Factory setting 67 00 42 8 F 6 C 01 14 0 F 10 C 02 17 6 F 8 C 03 21 2 F 6 C 04 24 8 F 4 C 05 28 4 F 2 C 06 32 0 F 0 C 07 35 6 F 2 C 08 39 2 F 4 C 09 42 8 F 6 C 10 46 4 F 8 C 11 50 0 F 10 C 1...

Page 183: ... Function 30 31 35 and 36 will reset to No correction 0 0 F 0 0 C Function number Setting value Setting description Factory setting 95 00 Standard insulation 01 High insulation NOTE hen changing Function 95 perform this setting before other room temperature control settings Function 30 31 35 and 36 If Function 95 is not set first room temperature con trol settings Function 30 31 35 and 36 will be ...

Page 184: ...s the START STOP button until only the clock is displayed on the remote controller display 2 Press the MODE button for at least 5 seconds to display the current custom code Initially set to 3 Press the TEMP buttons to change the custom code be tween Match the code on the display to the air condi tioner custom code Initially set to 4 Press the MODE button again to return to the clock display The cu...

Page 185: ...utton for at least 5 seconds to display the current temperature unit Factory setting F 2 Press the TEMP buttons to switch the temperature unit between F and C 3 ith either of pressing the START STOP button or no additional button operation for 30 sec onds in step 2 the temperature unit currently selected will be set 1 3 Switching the temperature unit of remote controller 05 11 1 Function settings ...

Page 186: ...us CN47 Error status Indoor unit fan operation status Cooling thermostat On Heating thermostat On External heater output Set point attainment status External input and output UT CS Z2 Operation Stop CN313 CN314 Dry contact Apply voltage Edge Pulse Forced stop Forced thermostat off CN313 Edge Operation status CN310 CN311 CN312 Error status Indoor unit fan operation status External heater output Rem...

Page 187: ...cable 22A G should be used Maximum length of cable is 492 ft 150 m The wire connection should be separate from the power cable line Indoor unit Indoor unit functions such as Operation Stop can be done by using indoor unit connectors 1 2 3 Connector CN46 PCB Connected unit 1 The switch can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA 2 1 External input 05 13 2 External input and...

Page 188: ...nput 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 S 301 to VOL side 1 2 3 Input 1 Power supply PCB Connected unit 2 1 2 3 Input 2 Connector CN313 Connector CN314 1 The switches can be used on the following condition DC 12 V...

Page 189: ...0 mA For details refer to Combination of external input and output on page 05 17 When indicator or other components are connected directly Example Function setting 60 is set to 00 1 2 Connector CN47 LED PCB Resistor Connected unit When connecting with a device equipped with a power supply Example Function setting 60 is set to 00 1 2 Connected device Connector CN47 PCB Connected unit Relay Operatio...

Page 190: ...tor 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 S on External input and output PCB is set to 1 1 2 Connected device 1 Connector CN310 PCB Connected unit Relay Operation status 1 2 Connected device ...

Page 191: ... 00 2 Forced thermostat Off Not available 1 60 01 3 Mechanical cooling Off 2 60 02 4 Forced thermostat Off 3 60 03 5 Mechanical cooling On 4 60 04 6 Mechanical cooling On 5 60 05 7 Forced thermostat Off 6 60 06 8 Forced thermostat Off 7 60 07 9 Mechanical cooling Off 8 60 08 A Forced thermostat Off 9 60 09 B Forced thermostat Off 10 60 10 C Forced thermostat Off 11 60 11 D Forced thermostat Off 12...

Page 192: ...ration Stop Error status Indoor unit fan operation status Heating thermostat On 7 60 07 9 Cooling thermostat On Error status Heating thermostat On External heater output 8 60 08 A Cooling thermostat On Heating thermostat On Remote controller output External heater output 9 60 09 B Error status Operation Stop Indoor unit fan operation status External heater output 10 60 10 C Indoor unit fan operati...

Page 193: ...ntroller 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 gr...

Page 194: ...ernal input 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 hen the forced stop is triggered indoor unit stops and Operation Stop operation by the re mote controller is restricted hen forced stop function is used...

Page 195: ...the case 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 hen Operation Stop mode 2 function is used with forming a remote controller group connect t...

Page 196: ...put Control output function Operation Stop status Function setting Rotary SW on External input and output PCB External output Output signal Command 60 00 2 Output of indoor unit CN47 Off On Operation On Off Stop 60 00 1 External input and output PCB CN310 Off On Operation 60 09 B 60 10 C On Off Stop 60 11 D 60 12 D The output is low when the unit is stopped Operation Stop On Off CN47 On Off CN310 ...

Page 197: ...it Indoor unit fan operation status Function setting Rotary SW on External input and output PCB External output Output signal Command 60 10 C Output of indoor unit CN47 Off On Fan run On Off Fan stop 60 00 2 External input and output PCB CN311 Off On Fan run 60 09 B 60 11 D On Off Fan stop 60 12 D 60 00 1 CN312 Off On Fan run On Off Fan stop Output signal Condition On The indoor unit fan is operat...

Page 198: ...s the outdoor temperature change signal is output to tell the attainment status of set point Function setting Rotary SW on External input and output PCB External output Output signal Command 60 12 D Output of indoor unit CN47 On Off Normal Off On Set point attainment Output signal Condition Off Reached the set point Tr Tsα 1 F 0 5 C On Unreached the set point Tr Tsα 5 F 2 5 C However even if the s...

Page 199: ...emperature 1 External device Heat pump 61 07 On Enabled Auxiliary heat pump control by outdoor temperature 2 External device Heat pump 61 08 On Enabled Auxiliary heat pump control by outdoor temperature 3 External device Heat pump 61 09 On Enabled NOTES After turning off the heater 3 minutes of standby time is required by next power on of the heater For items marked in the table any of validate or...

Page 200: ...oom temperature Ts Set temperature Thon Heater on temperature Example hen set temperature Ts is 72 F 22 C Factory setting and room temperature Tr increases above 53 6 F 12 C signal output is on and room temperature Tr increases above 69 8 F 21 C signal output is off and room temperature Tr decreases below 66 2 F 19 C signal output is on and room temperature Tr decreases below 50 F 10 C signal outp...

Page 201: ...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 9 F 0 5 C Tr Ts 0 9 F 0 5 C Operation status On 0 9 F 0 5 C 0 9 F 0 5 C On 12 V On Off Off 0 V Off Heating operation Heater Fan Air conditioner Room temperature Set temp...

Page 202: ...table 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 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 F 0 5 C Outdoor temperature ...

Page 203: ...ly zone Combination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 29 2 External input and output FIELD WORKING FIELD WORKING ...

Page 204: ...ed 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 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 F...

Page 205: ...mbination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 31 2 External input and output FIELD WORKING FIELD WORKING ...

Page 206: ...ced 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 B Adjustable by function setting number 67 External heater output Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 ...

Page 207: ...nly zone On On 12 V Off Off 0 V Heater Fan Comp On Off Outdoor temperature Factory setting Outdoor temperature zone 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 33 2 External input and output FIELD WORKING FIELD WORKING ...

Page 208: ...re of heater off Set temperature Ts 0 9 F 0 5 C Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts Tr Ts Thon 0 9 F 0 5 C Tr Ts 0 9 F 0 5 C Auxiliary heat pump On Off Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of heat pump All control temperatures will shift by adjusting Thon Off On Tr Ts 1 8 F 1 C Tr Ts Tr Ts Thon 5 4...

Page 209: ...e Ts Set temperature Thon Heater on temperature Off On Tr Ts Tr Ts Thon 0 9 F 0 5 C Tr Ts 0 9 F 0 5 C Auxiliary heat pump On Off Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of heat pump All control temperatures will shift by adjusting Thon Off On Tr Ts 1 8 F 1 C Tr Ts Tr Ts Thon 5 4 F 3 C Tr Room temperature Ts Set temperature Thon Heater on tempe...

Page 210: ...mbination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 36 2 External input and output FIELD WORKING FIELD WORKING ...

Page 211: ... Ts Set temperature Thon Heater on temperature Off On Tr Ts Tr Ts Thon 0 9 F 0 5 C Tr Ts 0 9 F 0 5 C Auxiliary heat pump On Off Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of heat pump All control temperatures will shift by adjusting Thon Off On Tr Ts 1 8 F 1 C Tr Ts Tr Ts Thon 5 4 F 3 C Tr Room temperature Ts Set temperature Thon Heater on temper...

Page 212: ...ibition zone On On 12 V Off Off 0 V Heater Fan Comp On Off Outdoor temperature Factory setting Outdoor temperature zone 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 38 2 External input and output FIELD WORKING FIELD WORKING ...

Page 213: ...er on temperature Off On Tr Ts Tr Ts Thon 0 9 F 0 5 C Tr Ts 0 9 F 0 5 C Auxiliary heat pump On Off Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of heat pump All control temperatures will shift by adjusting Thon Off On Tr Ts 1 8 F 1 C Tr Ts Tr Ts Thon 5 4 F 3 C Tr Room temperature Ts Set temperature Thon Heater on temperature Outdoor temperature zon...

Page 214: ...transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C Combination zone Heat pump prohibition zone NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 2 4 Details of function 05 40 2 External input and output FIELD WORKING FIELD WORKING ...

Page 215: ...ndividual connection External output Heating thermostat on Humidifier Operation status The heating thermostat output for CNB01 1 2 or 1 3 or 1 or 1 5 will be on when comp on or ex ternal heater on The heating thermostat output will be off when comp off and external heater off Heating operation Heating thermostat On output External heater output On Off Comp On Off On On On On On Off Off Off Off Off...

Search results

Summary of Contents for AOUH18LMAS1

Reviews:

Related manuals for AOUH18LMAS1

Brands by name

Popular brands

Fujitsu AOUH18LMAS1, Service Manual

Search results

Summary of Contents for AOUH18LMAS1

Reviews:

Related manuals for AOUH18LMAS1

Brands by name

Popular brands