Fujitsu AMUG24LMAS Service Manual Download Page 115

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2. COMPRESSOR PREHEATING

It works to keep compressor temperature higher than around

and prevent oil and refrigerant from mixing in a compressor.

AOU24RGLX

AOU30RGLX

AOUG36LMAS1

AOUG48LMAS1

It works when outdoor temperature is lower than 68°F (20°C)

and a compressor stops for 30 minutes.
When, power is applied to a compressor to be heated.
When operation starts or outdoor temperature exceed 77°F (25°C), preheating ends.

04-08

Summary of Contents for AMUG24LMAS

Page 1: ...AIR CONDITIONER Duct type SERVICE MANUAL INDOOR AMUG24LMAS AMUG30LMAS AMUG36LMAS AMUG48LMAS OUTDOOR AOU24RGLX AOU30RGLX AOUG36LMAS1 AOUG48LMAS1 SR_AR024EF_01 2020 07 15 ...

Page 2: ...roduct specifications and design are subject to change without notice for future improvement For further details please check with our authorized dealer Copyright 2020 Fujitsu General Limited All rights reserved ...

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

Page 4: ......

Page 5: ...1 GENERAL INFORMATION 2020 07 15 SR_CH01_AR024EF_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 5 2 1 Indoor unit 01 5 2 2 Outdoor unit 01 8 ...

Page 7: ...5 23 5 FDB Outdoor temp Min Max 0 54 3 22 0 47 3 26 0 60 4 77 0 60 4 80 Lower limit Outdoor temp Min Max 0 48 3 20 0 42 3 24 0 59 4 28 0 59 4 30 Fan HIGH W 106 9 136 3 204 3 412 4 MED 67 4 96 3 63 4 118 2 LOW 50 6 57 7 42 1 73 1 QUIET 19 7 22 7 31 0 38 5 Current Cooling Rated A 8 8 13 0 14 0 24 4 Heating 10 9 13 3 16 8 23 5 EER Cooling kW kW 3 52 2 96 3 31 2 40 Btu hW 12 0 10 1 11 3 8 20 COP Heati...

Page 8: ...1 11 CDB 15 CWB and outdoor temperature of 47 FDB 43 FWB 8 33 CDB 6 11 CWB Pipe length 24 ft 7 in 7 5 m Height difference 0 ft 0 m Between outdoor unit and indoor unit Standard static pressure 0 18 in WG 45 Pa 24 model 0 23 in WG 58 Pa 30 and 36 model 0 28 in WG 70 Pa 48 model Protective function might work when using it outside the operation range 1 Maximum current The maximum value when operated...

Page 9: ...Net lb kg 134 61 Gross 152 69 Connection pipe Size Liquid in mm Ø3 8 9 52 Gas Ø5 8 15 88 Method Flare Pre charge length ft m 66 20 Max length 164 50 Max height difference 98 30 Operation range Cooling F C 4 to 115 20 to 46 Heating 4 to 75 20 to 24 Drain hose Material LDPE Size in mm Ø1 2 13 0 I D Ø5 8 to Ø11 16 16 0 to 16 7 O D NOTES Specifications are based on the following conditions Cooling Ind...

Page 10: ...t lb kg 198 90 Gross 220 100 Connection pipe Size Liquid in mm Ø3 8 9 52 Gas Ø5 8 15 88 Method Flare Pre charge length ft m 98 30 Max length 230 70 Max height difference 98 30 Operation range Cooling F C 14 to 115 10 to 46 Heating 4 to 75 20 to 24 Drain hose Material LDPE Size in mm Ø1 2 13 0 I D Ø5 8 to Ø11 16 16 0 to 16 7 O D NOTES Specifications are based on the following conditions Cooling Ind...

Page 11: ...ia knockouts 7 8 22 1 1 16 27 1 15 16 50 Gas pipe Auxiliary drain connection Primary drain connection Auxiliary drain connection Liquid pipe Model Dimension Unit in mm A Supply duct W Unit width H Unit height AMUG24LMAS AMUG30LMAS 19 1 2 495 21 533 42 1 2 1 080 AMUG36LMAS AMUG48LMAS 19 1 2 495 21 533 57 1 448 2 1 Indoor unit 01 5 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 12: ...00 or more Service access 4 100 or more For installation method the following 4 patterns Pattern A Vertical installation air intake port at the bottom AIR AIR Pattern B Horizontal installation air intake port at the right AIR AIR 2 1 Indoor unit 01 6 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 13: ... exchanger and reattaching the thermistor are required AIR AIR Pattern D Horizontal installation air intake port at the left Reversing the heat exchanger and reattaching the thermistor are required AIR AIR 2 1 Indoor unit 01 7 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 14: ...ew Front view Side view Bottom view 3 77 35 7 16 900 32 11 16 830 17 3 8 440 7 8 21 15 3 4 400 13 330 7 3 4 196 5 3 4 147 6 3 4 170 14 5 8 370 25 5 8 650 Airflow 1 1 4 31 1 2 12 3 7 8 99 3 8 9 2 2 Outdoor unit 01 8 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 15: ...Ø1 1 8 27 8 Cable port Ø7 8 22 2 Cable port 11 279 11 11 16 297 20 14 16 530 Treminal blocks 3 Way valve Liquid 3 Way valve Gas Liquid valve Gas valve Ø7 8 22 2 Cable port 6 2 16 156 4 8 16 115 2 13 16 72 14 16 23 1 15 16 50 3 12 16 95 3 8 16 89 13 6 16 341 1 9 16 40 1 15 16 50 10 15 16 278 17 1 4 438 20 11 16 526 24 1 2 622 27 3 16 690 3 76 12 5 8 321 11 5 8 296 8 15 16 227 5 1 2 140 12 6 16 315 ...

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

Page 17: ...2 TECHNICAL DATA AND PARTS LIST 2020 07 15 SR_CH02_AR024EF_01 ...

Page 18: ...Models AOUG36LMAS1 and AOUG48LMAS1 02 14 4 Accessories 02 20 4 1 Indoor unit 02 20 4 2 Outdoor unit 02 20 5 Optional parts 02 21 5 1 Indoor unit 02 21 6 Refrigerant system diagrams 02 23 6 1 Models AOU24RGLX and AOU30RGLX 02 23 6 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 24 7 Wiring diagrams 02 25 7 1 Outdoor unit 02 25 8 PC board diagrams 02 27 8 1 Models AOU24RGLX and AOU30RGLX 02 27 8 2 Models AO...

Page 19: ...ommended by the manufacturer Work Work 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 ...

Page 20: ...Models AMUG24LMAS AMUG30LMAS AMUG36LMAS and AMUG48LMAS Exterior parts and chassis 2 1 Models AMUG24LMAS AMUG30LMAS AMUG36LMAS and AMUG48LMAS 02 2 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 21: ...01 AE 104241 01 AE 104241 01 Touch up Paint Private Label Gray Aerosol 523014 523014 523014 523014 Touch up Paint Private Label Gray Paint Pens 523015 523015 523015 523015 Coil group 12 Replacement Coil w TXV RCH 3021SNAV UA RCH 3021SNAV UA RCH 4821SNAV UA RCH 4821SNAV UA Horizontal Adapter Kit See specified RCH Coil Parts List Drain Pan Vertical See specified RCH Coil Parts List TXV See specified...

Page 22: ... Blower assy 2 1 Models AMUG24LMAS AMUG30LMAS AMUG36LMAS and AMUG48LMAS 02 4 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 23: ...10019005 Terminal 4P 9306488154 Terminal 5P 9900896027 Thermistor Pipe 9901058004 Thermistor Room 9900960056 Blower group 15 Blower Assembly Includes items 16 22 AS 101885 42 AS 101885 40 AS 101885 41 AS 101885 39 16 Mounting Bracket Control Board 10 101049 03 10 101049 03 10 101049 03 10 101049 03 17 Transformer See Electrical group 18 Control Board See Electrical group Control Identity EEPROM Se...

Page 24: ... RCH coil 2 1 Models AMUG24LMAS AMUG30LMAS AMUG36LMAS and AMUG48LMAS 02 6 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 25: ...Shields Drain Pan and Insulation RXHH A03 3 Drain Pan Horizontal AE 101128 31 Insulation Horizontal Pan 68 100528 01 4 Rear Front Shield 2 AE 101136 07 5 Straps 2 AE 100530 07 It is recommended that stock be maintained for this part 2 1 Models AMUG24LMAS AMUG30LMAS AMUG36LMAS and AMUG48LMAS 02 7 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 26: ...els AOU24RGLX and AOU30RGLX Exterior parts and chassis 14 15 6 10 9 18 a b 3 2 2 2 2 7 5 4 11 1 16 17 8 12 13 3 1 Models AOU24RGLX and AOU30RGLX 02 8 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 27: ...er 9 313166024302 Drain cap 10 9303029015 Drain assy 11 9374415106 Service panel sub assy 12 9351355005 Rear emblem 13 9375212018 Label Halcyon 14 9374414079 Front panel sub assy 15 9374330010 Fan guard 16 9366378020 Propeller fan assy 17 9603777012 Fan motor assy 18 9374418152 Motor bracket sub assy a Separation wall b Accumulator support assy 3 1 Models AOU24RGLX and AOU30RGLX 02 9 3 Outdoor uni...

Page 28: ... Inverter unit 54 55 57 56 51 52 50 a b c e d 62 61 58 59 60 53 3 1 Models AOU24RGLX and AOU30RGLX 02 10 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 29: ...4 model 9711685018 Main PCB 30 model 61 9708513072 Capacitor PCB 62 9704265012 Thermistor 9707837032 Wire assy 9367595112 Wire Pressure switch Red 9708548012 Wire with connector White CN40 on Main PCB CN301 on Transistor PCB 9708550015 Wire with connector White CN42 on Main PCB CN303 on Transistor PCB 9708549019 Wire with connector Red CN400 on Main PCB ACTPM a Heat sink cover b Case Inverter and ...

Page 30: ...ompressor 101 102 103 104 106 105 107 108 a b 111 113 112 100 A A B 109 110 B 3 1 Models AOU24RGLX and AOU30RGLX 02 12 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ...ansion valve coil 106 9370947144 Expansion valve assy 107 9377958013 3 way valve assy 108 9374470044 3 way valve sub assy 109 9354022010 Accumulator holder rubber 110 9970055034 Solenoid 111 9810135001 Compressor 112 9374425198 4 way valve assy 113 9900186012 Pressure switch a Cover plate b Valve plate 3 1 Models AOU24RGLX and AOU30RGLX 02 13 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST...

Page 32: ... and AOUG48LMAS1 Exterior parts and chassis 4 11 13 12 1 2 19 18 17 a 14 6 5 7 8 9 10 15 3 16 3 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 14 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 33: ...1049 Service panel sub assy 10 9380477006 Label Fujitsu 9380113027 Label Halcyon 11 9303029015 Drain assy 12 313166024302 Drain cap 13 9380569091 Front panel sub assy 14 9382179007 Fan guard 15 9379414005 Propeller fan 16 9603496012 Brushless DC motor 17 9378928022 Protective net Left 18 9380968009 Cabinet Left 19 9380566021 Motor bracket sub assy a Separation wall 3 2 Models AOUG36LMAS1 and AOUG4...

Page 34: ... Exterior parts and chassis c b a d 57 56 58 59 52 51 50 60 61 55 53 54 3 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 16 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 35: ...eat sink B 9710456008 Wire with connector Black CN251 on Main PCB CN380 on Inverter PCB 9708609010 Wire with connector White CN271 on Main PCB CN390 on Inverter PCB 9708610016 Wire with connector White CN281 on Main PCB CN320 on Inverter PCB 9708612010 Wire with connector Black CN395 on Inverter PCB CN11 on ACTPM 9708613017 Wire with connector Blue CN370 on Inverter PCB CN501 on Filter PCB a Duct ...

Page 36: ...pressor 107 108 110 104 100 113 114 102 b 105 106 103 a 111 112 101 109 A A 3 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 18 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 37: ...valve assy 106 9381055005 3 way valve assy 107 9379647090 Compressor cover 108 9380516071 Compressor cover Top 109 9901076039 Belt heater 110 9810275004 Compressor 111 9970165016 Solenoid 112 9970110146 Solenoid 113 9380016038 Solenoid valve assy 114 9970158018 Sensor a Installation plate Accumulator b Valve plate 3 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 19 3 Outdoor unit parts list TECHNICAL DAT...

Page 38: ...hose insulation 1 Drain cap 2 Coupler heat insulation large 1 Screw 16 Coupler heat insulation small 1 4 2 Outdoor unit Models AOU24RGLX and AOU30RGLX Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain cap 5 Drain pipe 1 Models AOUG36LMAS1 and AOUG48LMAS1 Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain cap 7 Drain pipe 1 4 1 Indoor unit 02 20 4 ...

Page 39: ...ler concentrates on the basic functions such as Start Stop fan control temperature setting and operation mode Wire type Non polar 2 wire Simple remote controller UTY RHRY Compact remote controller concentrates on the basic functions such as Start Stop fan control and temperature setting Wire type Non polar 2 wire IR receiver kit with wireless remote controller UTY LBTUM Unit control is performed b...

Page 40: ...l input and output PCB and Indoor unit PCB Wireless LAN adapter UTY TFSXZ2 Remotely manage an air conditioning system using mobile devices such as smartphones and tablets For connection indoor unit with UART interface Thermostat converter UTY TTRX This converter can control Fujitsu General products using a third party thermostat controller Split system converter UTY VTGX This converter is required...

Page 41: ...e switch Sub accumulator ThC ThR ThD ThPI ThO ThHO ThC Thermistor Compressor temperature Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Heat exchanger Out temperature ThD ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI Pressure check valve 6 1 Models AOU24RGLX and AOU30RGLX 02 23 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHN...

Page 42: ...ture Thermistor Room temperature Thermistor Heat Exchanger Med temperature 㼀㻴㻢㼀㻴㻝 Thermistor Shell 㼀㻴㻟㼀㻴㻡㼀㻴㻠 Thermistor Discharge temperature thermistor 㼀㻴㻞 TH2 㻴㻱㼄 Heat exchanger 㻭㻯㻹 Accumulator 㻴㻼㻿 High pressure sensor 㻠㼃㼂 4 way valve 㻱㻱㼂 Electric expansion valve 㻯㻹㻼 Compressor Inverter type 㻟㼃㼂 3 way valve Belt heater 6 2 Models AOUG36LMAS1 and AOUG48LMAS1 02 24 6 Refrigerant system diagrams...

Page 43: ...7 Wiring diagrams 7 1 Outdoor unit Models AOU24RGLX and AOU30RGLX 7 1 Outdoor unit 02 25 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 44: ... Models AOUG36LMAS1 and AOUG48LMAS1 7 1 Outdoor unit 02 26 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 45: ...032 3 WHITE CN63 3 1971032 3 YELLOW CN65 1 1971032 3 RED L1 L2 P N1 W19 B W20 B CT I N OUT W9 B W21 B CN100 W25 B W26 B W29 B W28 B ZPR0YCE400A300 W3 B W18 B W17 B W1 B W2 B EARTH 1 2 3 L N POWER SOURCE AC208 230V 60Hz TO I NDOOR UNIT M DC FAN MOTOR EXPANSION VALVE COIL 4 WAY VALVE COIL PRESSURE SWITCH THERMISTOR COMPRESSOR TEMP THERMISTOR OUTDOOR TEMP THERMISTOR DISCHARGE TEMP THERMISTOR PIPE TEM...

Page 46: ... 1 WHITE CN281 B08B PASK 1 WHITE CN1 B06B PASK 1 WHITE CN271 B02B XASK 1 A WHITE AWG26 BLUE AWG26 ORANGE AWG26 YELLOW AWG26 WHITE AWG26 RED THERMISTOR OUTDOOR TEMP THERMISTOR PIPE OUT TEMP THERMISTOR DISCHARGE TEMP THERMISTOR COMPRESSOR TEMP DC FAN MOTOR PRESSURE SENSOR HIGH PRESSURE BELT HEATER 28W AC230V 1 889 SOLENOID VALVE COIL 4WV SV PRES SENSOR HI FM CM EEV CN251 B3P5 VH B C BLACK CN201 B2P ...

Page 47: ...3 TROUBLESHOOTING 2020 07 15 SR_CH03_AR024EF_01 ...

Page 48: ...CONTENTS 3 TROUBLESHOOTING 1 ERROR DISPLAY 2 TROUBLESHOOTING WITH ERROR CODE 3 TROUBLESHOOTING WITH NO ERROR CODE 03 01 03 05 03 42 4 PARTS INFORMATION 03 48 ...

Page 49: ...other connected indoor units Error code display on a wired remote control option When you use a wired type remote control error codes will appear on remote control display For more information refer to an installation manual of a remote control When you use a wireless remote control lamps on an IR receiver unit will output error codes by way of blinking patterns Refer to lamp blinking patterns and...

Page 50: ...utdoor unit PCB model information error Indoor unit fan motor error Indoor unit heat exchanger middle temperature sensor error Room temperature sensor error Indoor unit communication circuit wired remote control error Manual auto switch error Indoor unit PCB model information error Connection unit number error indoor unit wired remote control error Address setting error in wired remote control sys...

Page 51: ...ashes quickly F E D C MONITOR ERROR B A POWER MODE Blink High speed LEDs A to F of MONITOR light up and display the error location In the case of an overall error LEDs A to F of MONITOR do not light up Example Coil error in indoor unit A F E D C MONITOR ERROR B A POWER MODE Blink High speed Error code In the event of an error Error location display While the error is occurring brie y press SW1 The...

Page 52: ...emp sensor error 74 1 84 1 Current sensor 1 error Stoppage permanently 94 1 Outdoor unit trip detection 95 1 Compressor motor control error Stoppage permanently 97 3 Outdoor unit fan motor 1 error 99 1 4 way valve error 9A 1 Coil 1 Expansion valve 1 error A1 1 Discharge temperature error A3 1 Compressor temperature error Error contents Monitor Outdoor unit LED display part 1 5 15 6 2 6 2 6 2 6 3 6...

Page 53: ...able Neon light bulb or any electronic equipment which causes harmonic wave Check Point 2 Check connection Check any loose or removed connection line of between indoor unit and outdoor unit If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check connection condition in control unit If there is loose connector open cable or mis wiring When ind...

Page 54: ...ated value swings between AC90V and AC270V at outdoor unit terminal 1 3 If it is abnormal Check the parts as follows Outdoor unit fan motor Parts information 4 Active filter module Parts information 5 Transistor PCB IPM Parts information 6 Filter PCB Check the wire of CN110 AOU24 30RGLX CN201 AOUG36 48LMAS1 If Outdoor fan motor is abnormal replace outdoor unit fan motor and main PCB If Active filt...

Page 55: ...al or Data Technical Manual Check connection condition in control unit If there is loose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC187V AC208V 10 253V AC230V 10 appears at outdoor unit terminal L1 L2 Check Point 4 Check serial signal Forward transfer signal Check serial signal Forward transfer signal Check if ind...

Page 56: ...orrect the followings Indoor unit Check the connection of terminal between remote control and Indoor unit or between Indoor units and check if there is a disconnection or short of the cable OK Forecast of cause 1 Terminal connection abnormal 2 Wired remote control failure 3 Controller PCB failure DC Indicate or Display Indoor unit Operation lamp 1 times Flash Timer lamp 2 times Flash Wired remote ...

Page 57: ...e or mis wiring the same signal has not been received for 15 seconds After receiving signal from external I O PCB 1 Connection failure 2 External I O PCB failure 3 Controller PCB failure Check Point 1 Check connection Indicate or Display Indoor unit Operation lamp 1 times Flash Timer lamp 8 times Flash Wired remote control Error code E 18 Outdoor unit AOUG36 48LMAS1 Check Point 2 Replace external ...

Page 58: ... incorrect Check Point 1 Check the type of indoor unit Check the type of the connected indoor unit If abnormal condition is found correct it Check Point 2 Replace main PCB If Check Point 1 do not improve the symptom replace main PCB of Outdoor unit Indicate or Display Indoor unit Operation lamp 2 times Flash Timer lamp 3 times Flash Wired remote control Error code E 23 n n times blinking Light ON ...

Page 59: ... n n times blinking Light ON Light OFF Mode Error 2 5 15 Outdoor unit AOUG36 48LMAS1 A B F E D C Check Point 3 Check indoor unit controller PCB Check Point 1 Wire installation Wrong wire connection in RC group Please refer to the installation manual Change controller PCB and check the error after setting remote control address Check if controller PCB damage Check Point 2 Wrong RC group setting The...

Page 60: ...s Flash Timer lamp 9 times Flash Wired remote control Error code E 29 n n times blinking Light ON Light OFF Mode Error 2 5 15 Outdoor unit AOUG36 48LMAS1 A B F E D C Forecast of cause 1 Wrong wiring number of indoor units remote control in RC group 2 Indoor unit controller PCB defective Check Point 1 Wire installation Wrong number of connecting indoor unit Check Point 2 Check Indoor unit controlle...

Page 61: ...ically Erasable and Programmable Read Only Memory is a non volatile memory which keeps memorized information even if power is turned off It can change the contents electronically To change the contents it uses higher voltage than normal and it can not change a partial contents Rewriting shall be done upon erasing the all contents There is a limit in a number of rewriting Change controller PCB Chec...

Page 62: ...nd indicator PCB failure Check Point 1 Check the manual auto switch Check if manual auto switch is kept pressed Check Point 2 Replace controller PCB If Check Point 1 do not improve the symptom change Controller PCB and Indicator PCB Check ON OFF switching operation by using a meter If manual auto switch is disabled on off switching replace it Indicate or Display Indoor unit Operation lamp 3 times ...

Page 63: ...it controller PCB defective Check Point 1 Check the connection of terminal Indoor unit Check the connection of terminal between remote control and indoor unit or between indoor units and check if there is a disconnection or short of the cable Check terminal voltage of controller PCB connector CN300 Power supply for remote controller If DC12V Remote control failure Controller PCB is OK Replace remo...

Page 64: ...ctor or incorrect wiring 6 5 kΩ 8 0 kΩ 10 0 kΩ 12 5 kΩ 15 8 kΩ 20 2 k 25 9 kΩ 33 6 kΩ 4 35 kΩ 5 3 kΩ Resistance value OK OK Troubleshooting 11 Room temperature sensor error Temperature Temperature 32 F 0 C 104 F 40 C 113 F 45 C 41 F 5 C 44 0 kΩ 58 2 kΩ 14 F 10 C 23 F 5 C 50 F 10 C 59 F 15 C 68 F 20 C 77 F 25 C 86 F 30 C 95 F 35 C Resistance value Check Point 3 Check voltage of controller PCB DC5 0...

Page 65: ...r error 31 7 kΩ 39 6 kΩ 49 7 kΩ 62 9 kΩ 80 3 kΩ 103 3 kΩ 134 2 kΩ 176 0 kΩ Resistance value Temperature Temperature 32 F 0 C 41 F 5 C 50 F 10 C 1131 9 kΩ 22 F 30 C 579 6 kΩ 4 F 20 C 312 3 kΩ 14 F 10 C 233 2 kΩ 23 F 5 C 59 F 15 C 68 F 20 C 77 F 25 C 86 F 30 C 95 F 35 C 17 1 kΩ 20 8 kΩ 25 6 kΩ Resistance value Temperature 104 F 40 C 113 F 45 C 122 F 50 C 14 1 kΩ 131 F 55 C 11 6 kΩ 140 F 60 C 10 4 kΩ...

Page 66: ...en condition that actual frequency of Indoor fan is below 1 3 of target frequency is continued more than 56 seconds Detective actuators Indoor unit controller PCB Indoor unit fan motor Check Point 4 24V AC transformer check Turn on the power and measure the voltage with a tester 24V AC is OK Check Point 3 Check the resistance value between pins of CN650 Is the resistance value between pin3 and 4 o...

Page 67: ...e Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no related cables near the power line Change main PCB Access to EEPROM failed due to some cause after outdoor unit started Detective actuators Outdoor unit main PCB 03 19 Indicate or Display Indoor unit Operation lamp 6 times Flash Timer lamp 2 times Fl...

Page 68: ...Test 1 do not improve the symptom replace Main PCB Outdoor unit Detective details Forecast of cause Troubleshooting 14 2 EEPROM access error 1 External cause Noise temporary open voltage drop 2 Main PCB failure Detective actuators Outdoor unit main PCB Indicate or Display Indoor unit Operation lamp times Flash Timer lamp times Flash Wired remote Error code E n n times blinking Light ON Light OFF M...

Page 69: ...m replace Main PCB Outdoor unit 03 21 Detective details Forecast of cause Troubleshooting 14 3 1 External cause Noise temporary open voltage drop 2 Main PCB defective Detective actuators Outdoor unit main PCB Indicate or Display Indoor unit Operation lamp 6 times Flash Timer lamp 2 times Flash Wired remote Error code E 62 n n times blinking Light ON Light OFF Mode Error 2 6 A B F E D C 2 Outdoor u...

Page 70: ...ear the power line Check Point 2 Check the wiring power supply to filter PCB to inverter PCB Connector and wiring connection state check Cable open check Replace filter PCB main PCB and inverter PCB Check Point 1 1 Turn power on again Error displayed again Check Point 3 Replace filter PCB INV and inverter PCB 03 22 Troubleshooting 15 Detective details Inverter PCB Detective actuators Forecast of c...

Page 71: ...oltage 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 supply 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 OK OK C...

Page 72: ...open Upon correcting the removed connector or miss wiring reset the power Test 2 Check outdoor fan heat exchanger Is there anything obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off If the Fan Motor is locked replace it Check Outdoor Fan Motor Refer to Troubleshooting 26 If the Fan Motor is failure replace it ...

Page 73: ...istor Thermistor characteristics check Disconnect thermistor from PCB and check Check Point 3 Check voltage of main PCB DC 5 0V Main PCB CN63 1 3 voltage value 5V AOU24 30RGLX Main PCB CN63 1 2 voltage value 5V AOUG36 48LMAS1 Disconnect thermistor from main PCB and check voltage If the voltage does not appear replace main PCB and execute the check operation again 03 25 Troubleshooting 18 Detective...

Page 74: ...ue 5V AOU24 30RGLX Main PCB CN63 3 4 voltage value 5V AOUG36 48LMAS1 Disconnect thermistor from main PCB and check voltage If the voltage does not appear replace Main PCB and execute the check operation again 03 26 Troubleshooting 19 Detective details Compressor temperature thermistor Detective actuators Forecast of cause CN64 THERMISTOR COMP SHELL1 BROWN BROWN 2 3 1 2 3 1 AOUG36LMAS1 AOUG48LMAS1 ...

Page 75: ...ure thermistor Detective actuators Forecast of cause Indicate or Display Indoor unit Operation lamp 7 times Flash Timer lamp 3 times Flash Wired remote control Error code E 73 n n times blinking Light ON Light OFF Mode Error 2 7 3 Outdoor unit AOUG36 48LMAS1 DC CN65 AOU24RGLX AOU30RGLX THERMISTOR HEX PIPE BLACK BLACK 1 2 3 1 2 3 Check Point 3 Check voltage of main PCB DC5 0V Main PCB CN65 1 3 volt...

Page 76: ... thermistor from the PCB and check For the thermistor characteristics refer to the Parts Information 7 Check Point 3 Check voltage of main PCB DC5 0V Main PCB CN62 1 3 voltage value 5V AOU24 30RGLX Main PCB CN61 1 3 voltage value 5V AOUG36 48LMAS1 Remove thermistor from main PCB and check voltage If voltage does not appear replace main PCB and execute check operation again 03 28 Troubleshooting 21...

Page 77: ...ower failure Check if there is a defective contact or leak current in the power supply 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 1 1 Reset Power Supply and operate Does Error indication show again When input current sensor has detected 0A ...

Page 78: ...Cable open check Check Point 2 Check the high pressure switch characteristics Switch characteristics check For the characteristics of high pressure switch refer to below Check Point 3 Replace main PCB Change main PCB and execute check operation again 03 30 High pressure switch error AOU24 30RGLX Type of contact Characteristics of pressure switch C H Pressure CN90 Pressure switch 4 2 0 1MPa 3 2 0 1...

Page 79: ... 30 seconds or more Ps 43 51 psi 0 30 Mpa or Ps 725 19 psi 5 00 Mpa Check if the terminal connection is loose Check if connector is removed Check if cable is open Check if connector is erroneous connection Test 2 Check voltage from main PCB Parts information 8 Test 1 Check the connection of the pressure sensor DC DC With the connector connected to the PCB measure the voltage between CN92 2 3 of th...

Page 80: ...lure lock winding short 4 Transistor PCB IPM failure Protection stop by overcurrent generation after inverter compressor start processing completed generated consecutively 10 times 36 48 models 5 times The number of generations is reset if the start up of the compressor succeeds No obstructions in air passages Heat exchange fins clogged Outdoor unit fan motor check Ambient temperature not raised b...

Page 81: ...ompressor if the detected rotor location is out of phase with actual rotor location more than 90 36 48 models 105 the compressor stops After the compressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently Indicate or Display Indoor unit Operation lamp 9 times Flash Timer lamp 5 times Flash Wired remote contro...

Page 82: ...k if cable is open Upon correcting the removed connector or mis wiring reset the power For compressor terminal main PCB Check Point 1 Check noise from compressor Turn on power and check operation noise If an abnormal noise show replace compressor OK OK Check Point 5 Replace compressor If Check Point 4 do not improve the symptom change Compressor OK OK OK OK Check Point 3 Check Transistor PCB IPM I...

Page 83: ... rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor stops If and repeats 5 times in a row compressor and fan motor stops permanently Indicate or Display Indoor unit Operation lamp 9 times Flash Timer lamp 7 times Flash Wired remote control Error cod...

Page 84: ...ck outdoor unit circuit diagram and voltage Measure at main PCB side connector If voltage is not correct replace main PCB Read wire DC voltage Red Black White Black 15 1 5V Read wire DC voltage Red Black 260V 400V White Black 15 1 5V CN800 1 2 3 4 5 6 7 1 2 3 4 5 6 7 BLACK WHITE YELLOW BROWN RED FM FAN MOTOR AOU24 30RGLX Check Point 2 Check ambient temp around motor OK Check excessively high tempe...

Page 85: ...ature and either following condition is detected continuously two times the compressor stops Cooling or Dry operation Indoor heat exchanger temp Room temp 18 F 10 C Heating operation indoor heat exchanger temp Room temp 18 F 10 C If the same operation is repeated 5 times the compressor stops permanently Troubleshooting 27 4 way valve error Indicate or Display Indoor unit Operation lamp 9 times Fla...

Page 86: ... value is about 1355 135Ω 24 30 2085 208 5Ω 36 48 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 OK OK Check Point 4 Replace main PCB If Check Point 1 3 do not improve the symptom replace Main PCB Check Point 2 Check thermis...

Page 87: ...nection correctly or there are no related cables near the power line OK NG Check 3 Check the EEV Coil Check if the circuit of EEV coil winding is good or not Refer to the service parts information 3 Replace EEV Coil Replace Main PCB 03 39 Detective details Forecast of cause Troubleshooting 28 1 EEV coil loose connection 2 EEV wires cut or pinched Detective actuators EEV coil Main PCB Indicate or D...

Page 88: ...l return Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation 03 40 Check Point 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check operation OK 1 3 way valve not opened 2 EEV defective strainer clogged 3 Outdoor unit operation failure foreign matter ...

Page 89: ... open EEV open Strainer clogging check before and after EEV ACM oil return Check Point 2 Check the EEV strainer EEV open Strainer clogging check before and after EEV ACM oil return Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Check Point 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was clo...

Page 90: ...er Troubleshooting 32 Outdoor unit No Power Troubleshooting 33 No operation Power is ON Troubleshooting 34 No cooling No heating Troubleshooting 35 Abnormal noise Troubleshooting 36 Water leaking 03 42 3 TROUBLESHOOTING WITH NO ERROR CODE ...

Page 91: ...eak current in the power supply 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 03 43 Check Point 3 Check electrical components YES YES OK NO Check the voltage of power supply Check if AC187 253V appears at outdoor unit terminal L1 L2 Check Varistor in Filt...

Page 92: ...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 supply 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 the voltage of power supply Check if AC187 253V appea...

Page 93: ...rrect followings Is there loose or removed communication line of indoor unit and outdoor unit 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 supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that m...

Page 94: ...objects that obstruct the air flow route Check clogged heat exchanger Is the valve open Is capacity of indoor unit fitted to room size Any windows open Or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check if strainer i...

Page 95: ...n grille and front panel normal Is Fan broken or deformed Is the screw of Fan loose Is there any object which obstruct the Fan rotation Is Main Unit installed in stable condition Is Fan Guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor Parts information 1 2 Water leaking 1 Erroneous installation 2 Drain hos...

Page 96: ...rmation 4 Parts information 5 Parts information 6 Parts information 7 Compressor Inverter compressor Outdoor unit electronic expansion valve Active filter module Outdoor unit fan motor IPM Thermistor Parts information 8 Discharge pressure sensor 03 48 4 PARTS INFORMATION ...

Page 97: ...d Locked compressor due to clogged dirt or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas Pipe Valve open Low Pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if Strainer is clogged Parts information 3 If there is no failure the defect of Compressor can be considered Compres...

Page 98: ...ce of each terminal If the resistance value is 0 or infinite replace compressor If the symptom does not change with above check 1 2 replace main PCB 03 50 Appropriate Resistance value AOU24 30RGLX 0 642 Ω at 68 F 20 C AOUG36 48LMAS1 0 432 Ω at 68 F 20 C R U RED S V WHITE T W BLACK IPM PCB W V U RED 24 30 models TM305 36 48 models TM403 RED WHITE BLACK Compressor Inverter PCB U V WHITE 24 30 models...

Page 99: ...ding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace main PCB When valve is closed it has a temp difference between inlet and outlet If it is open it has no temp difference between inlet and outlet Strainer normally does n...

Page 100: ... Check resistance of outdoor fan motor AOU24 30RGLX CN800 Refer to below Circuit test Vm and GND terminal Vm DC voltage GND Earth terminal If they are short circuited below 300 kΩ replace outdoor fan motor and main PCB Pin number wire color Terminal function symbol 1 Red 2 3 4 Black 5 White 6 Yellow 7 Brown DC voltage Vm No function No function Earth terminal GND Control voltage Vcc Speed command ...

Page 101: ...f value 2 1 01M Ref value 1 0 76M Ref value 2 SACT32010 HITACHI LACT33020 HITACHI PM 604 FGEL PM 703 FGEL PM 601 FGEL 360k 20 0 900k 20 1 01M Ref value 1 0 76M Ref value 2 540k 20 1 65M Ref value 1 1 14M Ref value 2 LOT No 1302931396 LOT No 1302931395 PM 601 FGEL Type A Type B Table 1 Each type standard value multimeter IN N1 N IN IN N1 N is FGEL terminal name L2 P P L2 Terminal Resistance value 1...

Page 102: ...nd measure the resistance between the following terminals Set the tester to the Diode mode and measure the voltage value between the following terminals Judge the result of as follows Judge the result of as follows TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W P P P U V W N N N U V W U V W P P P U V W N N N Over 2k Including Over 2k Including Over 20k Including Terminal Tester di...

Page 103: ... 60 70 80 90 100 110 120 22 4 14 23 32 41 50 59 68 77 86 104 122 140 158 176 194 212 230 248 920 2 503 5 286 3 218 6 168 6 130 9 102 5 80 8 64 2 51 4 41 3 27 3 18 4 12 7 8 9 6 4 4 6 3 4 2 6 2 0 88 4 48 1 27 3 20 8 16 1 12 5 9 7 7 7 6 1 4 9 3 9 2 6 1 7 1 2 0 8 0 6 0 4 205 7 109 0 60 2 45 4 34 6 26 5 20 6 16 0 12 6 10 0 8 0 5 2 3 5 2 4 1 6 1 2 Applicable Thermistors Discharge temp TH Compressor temp...

Page 104: ...int Check Voltage from Main PCB DC With the connector connected to the PCB measure the voltage between CN92 2 3 of the Main PCB Characteristics of pressure sensor 4 5 5 0 0 5 0 Output DCV Pressure MPa DC 03 56 1 2 3 1 2 3 WHITE DISCHARGE PRESSURE SENSOR BLACK RED PS CN92 ...

Page 105: ......

Page 106: ...4 CONTROL AND FUNCTIONS 2020 07 15 SR_CH04_AR024EF_01 ...

Page 107: ...G 04 08 04 09 04 11 04 15 04 17 04 38 15 AUTO RESTART 17 VARIOUS PROTECTIONS 16 ELECTRIC EXPANSION VALVE CONTROL 04 29 04 30 04 31 7 MINIMUM HEAT OPERATION 14 4 WAY VALVE EXTENSION SELECT 13 PREVENT TO RESTART FOR 3 MINUTES 3 MINUTES ST 04 22 04 29 04 29 11 DEFROST OPERATION CONTROL 12 OFF DEFROST OPERATION CONTROL 04 25 04 28 10 FORCED OPERATION 04 24 9 TEST OPERATION CONTROL 8 ECONOMY OPERATION ...

Page 108: ...eating operation within 3 hours after compressor stop and compressor bottom thermistor is over 89 6 F 32 C Defrost operation Start after defrosting Pattern II Condition Oil and refrigerant are mixed in compressor In Heating operation over 3 hours after compressor stop or compressor bottom thermistor is under 89 6 F 32 C 120 sec 180 sec Time 30 rps 60 sec 47 rps 60 rps Frequency 180 sec 240 sec Tim...

Page 109: ... startup 04 02 H I K L M N A rps B rps G rps E F rps C D rps H rps G J O AOUG36LMAS1 AOUG48LMAS1 A rps 30 B rps C rps D rps E rps F rps G rps H rps 36 47 47 60 60 80 100 Frequency AOUG36LMAS1 AOUG48LMAS1 G H 60 sec 60 sec 480 sec 120 sec 300 sec 180 sec 120 sec 120 sec Time H I I J J K K L L M M N N O ...

Page 110: ...ation mode as shown below Cooling Heating Min Max Min Max Min Max Dry AOU24RGLX 16 rps 72 rps 18 rps 90 rps 16 rps 29 rps AOU30RGLX 16 rps 72 rps 18 rps 90 rps 16 rps 39 rps AOUG36LMAS1 16 rps 110 rps 16 rps 117 rps 16 rps 76 rps AOUG48LMAS1 16 rps 110 rps 16 rps 117 rps 16 rps 76 rps 04 03 ...

Page 111: ... cooling or dry operation AOU24RGLX under 14 F 10 C 40 rps over 14 F 10 C under 32 F 0 C over 32 F 0 C under 50 F 10 C over 50 F 10 C under 100 F 38 C over 100 F 38 C 25 rps 25 rps 12 rps 32 rps AOU30RGLX 25 rps 16 rps 40 rps 25 rps 32 rps AOUG36LMAS1 under 26 6 F 3 C 26 rps over 26 6 F 3 C under 120 2 F 49 C over 120 2 F 49 C 25 rps 20 rps AOUG48LMAS1 ...

Page 112: ...20 rps 25 rps 35 rps 30 rps AOUG48LMAS1 AOU24RGLX AOU30RGLX 40 rps 25 rps 25 rps 16 rps not working 42 rps 35 rps 26 rps 16 rps not working over 12 2 F 11 C under 21 2 F 6 C over 21 2 F 6 C under 30 2 F 1 C AOUG36LMAS1 80 rps 90 rps 110 rps 100 rps AOUG48LMAS1 AOU24RGLX AOU30RGLX 90 rps over 4 0 F 20 C under 53 0 F 12 C over 60 8 F 16 C under 68 0 F 20 C over 53 0 F 12 C under 60 8 F 16 C over 68 ...

Page 113: ...ween 7 F 3 5 C to 1 F 0 5 C of the setting temperature the compressor frequency is controlled within the range shown in Table 1 When the room temperature is 1 F 0 5 C lower than a set temperature the compressor will be stopped 6 DRY OPERATION Compressor frequency is defined by the set temperature and room temperature as below Ts 1 F Ts 0 5 C Ts 1 F Ts 0 5 C Ts 3 F Ts 1 5 C Ts 3 F Ts 1 5 C Operatin...

Page 114: ...ompressor operation frequency will attain to maximum performance When room temperature is higher 1 F 0 5 C than set temperature compressor will be stopped When room temperature is between 1 F 0 5 C to 9 F 4 5 C of the setting temperature the compressor frequency is controlled with In heating operation Maximum frequency is limited by airflow mode in the range shown in Table 1 High Medium Low 90 rps...

Page 115: ...gerant from mixing in a compressor AOU24RGLX AOU30RGLX AOUG36LMAS1 AOUG48LMAS1 It works when outdoor temperature is lower than 68 F 20 C and a compressor stops for 30 minutes When power is applied to a compressor to be heated When operation starts or outdoor temperature exceed 77 F 25 C preheating ends 04 08 ...

Page 116: ...ore the changing to the monitor mode is selected 1 2 3 1 Outdoor temperature zone selection Cooling Operation mode Temperature 77 F 25 C and over 75 2 F 24 C and under Heating Cooling Mode If it s Middle zone operation mode of indoor unit is selected as below 1 Same operation mode is selected as outdoor unit If outdoor unit is operating in Cooling and Heating mode indoor unit will be operated by t...

Page 117: ...tes or longer System stops or operation command other than auto changeover operation NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation Middle zone NO NO Operation mode of outdoor unit Cooling YES NO Operation mode of outdoor unit Heating YES NO YES Outdoor temperature 77 F 25 C NO YES YES YES NO YES YES Operation mode ...

Page 118: ...High 800 870 1200 1640 Medium Medium 670 730 740 1020 Low 590 590 590 820 Quiet 310 310 490 590 Cool air prevention S low 300 300 480 480 High 800 870 1200 1640 Medium 670 730 740 1020 Low 590 590 590 820 Quiet 310 310 490 590 S low 300 300 480 480 High 800 870 1200 1640 Medium 670 730 740 1020 Low 590 590 590 820 Quiet 310 310 490 590 Soft quiet 300 300 480 480 310 310 490 590 Dry Fan Cooling Hea...

Page 119: ...e as shown below Airflow changeover Cooling Auto When the room temperature rises When room temperature falls Tr Room temperature Ts Set temperature Tr Ts 4 F 2 C 2 C 2 F 1 C Tr Ts 4 F Tr Ts 2 F 1 C Tr Ts 5 F 2 5 C 3 F 1 5 C Tr Ts 5 F 2 5 C Tr Ts 3 F 1 5 C Hi Me Lo 1 Contains a condition to the following When the operation mode is set to AUTO mode at the start of operation When the setting temperat...

Page 120: ...Me High 6 COOL AIR PREVENTION CONTROL Heating mode The maximum value of the indoor fan speed is set as shown in Fig 7 based on the detected temperature by the indoor heat exchanger sensor on heating mode When the compressor does not operate the indoor fan motor operates S Lo mode On the Quiet mode the Quiet mode is kept On the Quiet mode the Quiet mode is kept 13 min later SETTING FAN MODE Lo mode...

Page 121: ...ntroller can t be set it 10 0 1 2 30 60 180 60 180 60 10 30 sec S low Factory setting 8 DEFROST OPERATION When defrost operation starts indoor fan runs according to cool air prevention control for 20 seconds And the fan is stopped if 20 seconds have passed When 60 seconds have passed after defrost operation is released the fan runs according to cool air prevention control 7 FAN CONTROL FOR ENERGY ...

Page 122: ... outdoor temperature cooling dry 550 450 900 850 800 620 550 450 500 320 250 300 250 200 220 200 850 800 620 500 400 550 450 Outside air temperature zone selection 53 6 F 12 C 32 F 0 C Outside air temperature Outside air temperature F zone D zone G zone H zone 35 6 F 2 C 17 6 F 8 C 50 F 10 C 14 F 10 C 04 15 Cooling Heating AOUG36LMAS1 AOUG48LMAS1 rpm 890 830 710 640 580 520 460 390 340 290 910 830...

Page 123: ...ontrol runs on heating mode fan speed keeps at higher speed as below without relating to compressor frequency 2 AFTER DEFROST Fan speed AOU24RGLX 900 rpm AOU30RGLX 900 rpm AOUG48LMAS1 640 rpm AOUG36LMAS1 640 rpm 04 16 ...

Page 124: ...Set time Off On Off On 04 17 AR WEE1U 2 wire remote control 1 WIRED REMOTE CONTROL OFF TIMER 3 wire remote control can be connected When 3 wire remote control is connected set the DIP SW on the controller PCB Refer to the installation manual for detailed Sleep timer Timer 10 C heat operation If used in combination with wireless and wired remote control the following function is limited ON TIMER WE...

Page 125: ...e Stop mode Operation mode Preceding day Next day DAY OFF Stop mode Stop mode Operation mode Stop mode Operation mode DAY OFF Setting day Preceding day Next day Setting day The weekly timer allows up to two ON and OFF time to set up per day Use this timer function to set operating time for each day of the week The operating time can be set in 30 min increments only The OFF time can be carried over...

Page 126: ... will operate at a minimum of 64 F 18 C even if the SET BACK temperature is set to 63 F 17 C or lower 1 3 TEMPERATURE SET BACK TIMER 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 78 F 26 C 1 ON OFF OFF ON 1 During the SET BACK function the setting temperature is changed Chang...

Page 127: ...IMER PROGRAM TIMER SLEEP TIMER UTY LBTUM The program timer allows the OFF timer and ON timer to be used in combination one time Operation will start from the timer setting either OFF timer or ON timer whichever is closest to the clock s current timer setting The order of operations is indicated by the arrow in the remote control unit s display SLEEP timer operation cannot be combined with ON timer...

Page 128: ...eep timer is set the setting temperature is increased 1 8 F 1 C It increases the setting temperature another 1 8 F 1 C after 1 hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting 1 8 F 1 C 3 6 F 2 C 3 6 F 2 C 1 8 F 1 C 7 2 F 4 C 5 4 F 3 C Set 60min Time Time In heating operation When the sleep timer is set the setting temperature is decr...

Page 129: ...ss RC only functions of a remote control specified as the secondary cannot be used Operatioin mode Heating Set temperature 50 F 10 C Fan mode Auto Minimum heat operation 8 ECONOMY OPERATION ECONOMY operation functions by pressing ECONOMY button on a remote control This function shifts target temperature like below Mode Cooling Dry Heating Target temperature Set temperature 2 F 1 C Set temperature ...

Page 130: ...he condition where the air conditioner runs press the TEST RUN button and the test operation control mode will appear During test running the Operation LED and Timer LED of the air conditioner body blinks simultaneously Set the test operation mode and the compressor will continue to run regardless of whether the room temperature sensor detects The test operation mode is released if 60 minutes have...

Page 131: ...O OPERATION Set temperature Energy saving fan Last position Off Louver group Louver individual Off Human sensor Off Economy Off Swing Fan control mode Timer mode This function is for cooling test operation and pump down This function starts by pushing a body button for 10 seconds like the below table Operation mode Cooling High As a setting Continuous operation 75 F 24 C Forced cooling operation S...

Page 132: ...Temperature of continuous operation at 10 minutes Tnb Back 5 minutes temperature Tn Outdoor heat exchanger temperature Ta Outside temperature More than 210 minutes For long continuous operation Condition More than 210 minutes For long continuous operation and after 30 minutes if 26 6 F 3 C and after 5 minutes if 23 F 5 C and after 5 minutes if 23 F 5 C Condition of Integrating defrost operation Co...

Page 133: ... motor OFF 30 sec later 4 way valve OFF 35 sec later compressor ON Compressor integrating operation Over 210 minutes Integrating defrost Defrost Indicator Operation lamp 6 sec ON 2 sec OFF Defrost start Tn 26 6 F 3 C and after 30 minutes in 26 6 F 3 C Compressor integrating operation Over 210 minutes Tn 23 F 5 C Compressor OFF count 40 times Less than 10 minutes 1st defrost and after 5 minutes in ...

Page 134: ...28 4 F 2 C and Sn Sn 1 More than 210 minutes For continuous operation Tn 26 6 F 3 C and after 30 minutes if the Tn 26 6 F 3 C or Tn 23 F 5 C and after 3 minutes if the Tn 23 F 5 C Integrating defrost Integrating OFF count defrost Compressor OFF count 40 times Less than 10 minutes Tn 1 Before 5 minutes detected Tn Sn Number of operation indoor units Sn 1 Before 5 minutes detected Sn 3 sec later Com...

Page 135: ...e lasts for more than 30 minutes 3 OFF DEFROST FLOWCHART Heating operation stop Outdoor heat exchanger temp Below 24 8 F 4 C and Compressor integrating operation Over 30 minutes Defrost start Defrost Indicator Operation lamp 7 sec ON 2 sec OFF AOUG36 48LMAS1 Outdoor heat exchanger temperature Over 55 4 F 13 C AOU24 30RGLX 59 0 F 15 C AOUG36 48LMAS1 or Compressor ON time Maximum 15 minutes Defrost ...

Page 136: ...n the operation contents at that time are memorized And when power is recovered operation is automatically resumed with the memorized operation contents When power is interrupted and recovered during timer operation timer operation is canceled but only setting time is memorized Operation contents memorized Operation mode Air flow direction Swing setting Individual air flow direction Swing setting ...

Page 137: ...ange The EEV is set up at 480 pulses when a compressor is stopped Initialization Input of 528 pulses toward closing direction is operated under the following condition When the power is turned on 4 hours has passed since the last initialization and 3 minutes has passed after the compressor stop If 12 hours has passed since the last initialization the compressor is compulsorily stopped Pulse range ...

Page 138: ...4 0 C When discharge temperature dips from 213 8 F 101 0 C control of compressor frequency is released When discharge temperature exceeds 230 0 F 110 0 C compressor stops and indoor unit LED starts blinking When discharge temperature exceeds 219 2 F 104 0 C compressor frequency is decreased 10rps and it continues to decrease 10 rps every 120 seconds until temperature dips from 219 2 F 104 0 C When...

Page 139: ...d frequency of the indoor unit at the time when the frequency becomes lower than the release value Current release operation value Release value 11 0A 10 5A 13 0A 12 5A 15 0A 14 5A 15 0A 14 5A 62 6 F 17 C 53 6 F 12 C 41 F 5 C OT Control Release AOU24 30RGLX Heating Cooling OT Control Release 10 0A 9 5A 13 0A 12 5A 14 5A 14 0A 114 8 F 46 C 104 F 40 C 14 5A 14 0A 53 6 F 12 C 14 5A 14 0A 35 6 F 2 C A...

Page 140: ...F 45 C 100 4 F 38 C Ta 100 4 F 38 C 87 8 F 31 C Ta 87 8 F 31 C 78 8 F 26 C Ta 78 8 F 26 C 71 6 F 22 C Ta 71 6 F 22 C 64 4 F 18 C Ta 64 4 F 18 C 53 6 F 12 C Ta 53 6 F 12 C 44 6 F 7 C Ta 44 6 F 7 C 37 4 F 3 C Ta 37 4 F 3 C 26 6 F 3 C Ta 17 6 F 8 C Ta 26 6 F 3 C 17 6 F 8 C Ta 340rpm 18 0A 17 5A 22 0A 21 5A 20 0A 19 5A 25 5A 25 0A 13 5A 13 0A Outside air temperature 290rpm 11 0A 10 5A 75 2 F 24 C Ta 7...

Page 141: ...ature rises 2 When the temperature drops 39 2 F 4 C 44 6 F 7 C 55 4 F 13 C Temperature Temperature 04 34 AOU24RGLX AOU30RGLX 4 COOLING PRESSURE OVERRISE PROTECTION When outdoor unit heat exchanger sensor temperature exceeds 152 6 F 67 C a compressor and outdoor fan motor stop and trouble display is performed AOU24RGLX AOU30RGLX Anti freezing protection operation Release temperature Outdoor tempera...

Page 142: ...a HP 471 37psi 3 25MPa HP 478 62psi 3 30MPa HP 449 62psi 3 10MPa HP 420 61psi 2 90MPa Release value psi MPa Compressor frequency rps Operation value psi MPa Cooling operation rps 90 rps 20 20 rps 100 90 HP 500 38psi 3 45MPa HP 551 14psi 3 80MPa HP 478 62psi 3 30MPa HP 471 37psi 3 25MPa HP 522 14psi 3 60MPa HP 449 62psi 3 10MPa Release value psi MPa HP Detected discharge pressure sensor value rps D...

Page 143: ...xchanger temperature sensor AOU24RGLX AOU30RGLX Indoor heat exchanger temperature It returns to the normal operation 145 4 F 63 C compressor stop 131 F 55 C 127 4 F 53 C The compressor frequency is decreased 15rps every 120 seconds The compressor frequency is decreased 2rps every 120 seconds The compressor frequency is Maintenance of status quo 122 F 50 C 04 36 ...

Page 144: ...5 F 15 C Tn 8 6 F 13 C 13 F 25 C Tn 5 F 15 C 20 2 F 29 C Tn 13 F 25 C Tn 20 2 F 29 C 8 6 F 13 C Tn 12 2 F 11 C 478 62 psl 3 30 MPa 464 12 psl 3 20 MPa 435 11 psl 3 00 MPa 377 10 psl 2 60 MPa 333 59 psl 2 30 MPa 449 62 psl 3 10 MPa 478 62 psl 3 00 MPa 406 11 psl 2 80 MPa 362 59 psl 2 50 MPa 319 08 psl 2 20 MPa 406 11 psl 2 80 MPa 391 60 psl 2 70 MPa 377 10 psl 2 60 MPa 333 59 psl 2 30 MPa 290 08 ps...

Page 145: ... again Otherwise the refrigerant can be recovered from the service port CAUTION Make sure the refrigerant circuit for any leaks before starting the pump down opera tion Do not proceed with the pump down operation if there is no refrigerant left in the circuit due to bent or broken piping During the pump down operation be sure to turn off the compressor before removing the refrigerant piping CAUTIO...

Page 146: ......

Page 147: ...5 FILED WORKING 2020 07 15 SR_CH05_AR024EF_01 ...

Page 148: ... Function settings For outdoor unit 05 10 2 1 Setting methods 05 10 2 2 Outdoor unit low noise operation function option 05 13 3 Test 05 14 3 1 Test run 05 14 3 2 Error code 05 16 3 3 Pump down 05 19 4 External input and output 05 21 4 1 External input 05 21 4 2 External output 05 23 4 3 Combination of external input and output 05 25 4 4 Details of function 05 28 ...

Page 149: ...t DIP switch101 1 Setting change prohibited 2 Setting change prohibited 3 Fan delay setting Component location Components on the indoor unit main PCB used for the function settings are located as shown in the following figure SW101 DIP switch setting Switch 1 Setting change prohibited SW101 Switch 2 Setting change prohibited SW101 Switch 3 Fan delay setting SW101 When the indoor unit is stopped wh...

Page 150: ...re sensor switching 6 43 Cold air prevention 7 46 External input control 8 48 Room temperature sensor switching Aux 9 49 Indoor unit fan control for energy saving for cooling 10 60 Switching functions for external output terminal 11 61 Control switching of external heaters 12 62 Operating temperature switching of external heaters 13 66 Outdoor temperature zone boundary temperature A 14 67 Outdoor ...

Page 151: ...corrected temp will be 80 F 78 F 2 F The temperature correction values show the difference from the Standard setting 00 manufactur er s recommended value Function number Setting value Setting description Factory setting 30 For cooling 31 For heating 00 Standard setting 01 No correction 0 0 F 0 0 C 02 1 F 0 5 C More cooling Less heating 03 2 F 1 0 C 04 3 F 1 5 C 05 4 F 2 0 C 06 5 F 2 5 C 07 6 F 3 0...

Page 152: ... 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 in normal operation Be sure to operate the unit by remote controller or exte...

Page 153: ...er Setting value Setting description Factory setting 48 00 Both 01 Wired 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 contr...

Page 154: ...re switching of external heaters Sets the temperature conditions when the external heater is ON For details refer to External heater output in Chapter 4 4 Details of function on page 05 28 Function number Setting value Setting description Factory setting Setting value of function 61 00 01 to 09 Heater On Heater Off Heater On Heater Off 62 00 5 4 F 3 C 1 8 F 1 C 0 9 F 0 5 C 0 9 F 0 5 C 01 3 6 F 2 C...

Page 155: ...l by outdoor temperature 1 is performed on the indoor unit For details refer to External heater output in Chapter 4 4 Details of function on page 05 28 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 12 53 6 F...

Page 156: ...le NOTE When this function is used IR receiver unit is necessary 18 Fan delay time Sets the fan delay time when the heater is turned off Function number Setting value Setting description Factory setting 74 00 1 minute 01 50 seconds 02 40 seconds 03 30 seconds 19 External heater use in defrosting Enables or disables external heater use in defrosting NOTE Inappropriate heater selection may cause col...

Page 157: ...andard no change 04 10 up 10 up 05 10 up 10 down 06 10 down Standard no change 07 10 down 10 up 08 10 down 10 down 21 Airflow adjustment at heater only operation By selecting the heater output in the table below at heater only operation this function adjusts the airflow volume according to the heater output to prevent cold air feeling Function number Setting value Setting description Factory setti...

Page 158: ...he display board It may cause a serious accident such as electric shock CAUTION Once refrigerant charging is completed be sure to open the valve prior to performing the local settings Otherwise the compressor may fail Discharge any static electricity from your body before touching the push switches Never touch any terminal or pattern of any parts on the control board The positions of the switches ...

Page 159: ...ging DIP switches and push switches on the board of the outdoor unit The printed characters for the LED display are shown below DIP switch part ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 PUMP DOWN 1 W S TEST RUN SET1 SET1 1 HEAT COOL SET2 SET3 F E D C MONITOR ERROR B A POWER MODE 1 2 3 SW1 LED display part 2 1 Setting methods 05 11 2 Function settings For outdoor unit FIELD WORKING FIELD WORKING ...

Page 160: ... DIP For selecting cooling or heating during test operation OFF SET1 2 DIP For switching SW1 operation OFF SET1 3 DIP Prohibited OFF Do not change SET1 4 DIP Prohibited OFF Do not change SET2 1 DIP For selecting outdoor unit low noise operation function To use this function the Central remote controller option is necessary OFF SET2 2 DIP Prohibited OFF Do not change SET2 3 DIP Prohibited OFF Do no...

Page 161: ...this function SET2 1 Setting Factory setting ON Lower OFF Low CAUTION When the low noise operation function is working cooling and heating capacity will de crease When changing the settings explain to the customer beforehand that the capacity decreas es 2 2 Outdoor unit low noise operation function option 05 13 2 Function settings For outdoor unit FIELD WORKING FIELD WORKING ...

Page 162: ...power supply or turn off the breaker before changing the DIP switch settings 1 Check the 3 way valves both at the liquid side and gas side are opened Confirm that the DIP switch SET1 2 is switched off 2 Set the operation mode to COOL or HEAT When switching the DIP switch SET1 1 be tween HEAT and COOL disconnect the power supply or turn off the circuit breaker before hand ON 1 2 3 4 SET1 SET1 1 HEA...

Page 163: ...firm operating status 5 Press TEST RUN switch for more than 3 seconds F E D C MONITOR ERROR B A POWER MODE POWER MODE LED will turn on and test run stops 3 1 Test run 05 15 3 Test FIELD WORKING FIELD WORKING ...

Page 164: ...y F E D C MONITOR ERROR B A POWER MODE blink High speed Error location display LEDs A to F of MONITOR light up and display the error location In the case of an overall error LEDs A to F of MONITOR do not light up Example Coil error in indoor unit B F E D C MONITOR ERROR B A POWER MODE blink High speed 3 2 Error code 05 16 3 Test FIELD WORKING FIELD WORKING ...

Page 165: ... F E D C MONITOR ERROR B A POWER MODE A 10 1 Blink High speed 9 blink F 1 2 3 4 5 6 7 8 9 A C F J P U E D C For MONITOR A and B Display mode LED on LED off Blink 0 5s Light on 0 5s Light off Number of blinking A 10 Blink C 11 Blink F 12 Blink J 13 Blink P 14 Blink U 15 Blink 3 2 Error code 05 17 3 Test FIELD WORKING FIELD WORKING ...

Page 166: ... temp sensor error 73 3 Heat exchanger liquid temp sensor error 74 1 Outdoor temp sensor error 75 1 Suction gas temp sensor error 76 1 Valve sensor error 76 2 77 1 Heat sink temp sensor error 84 1 Current sensor 1 error stoppage permanently 86 1 Discharge pressure sensor error 86 4 Outdoor unit high pressure switch1 error 94 1 Trip detection 95 1 Compressor motor control error stoppage permanently...

Page 167: ...upply is disconnected on the breaker is turned off when changing the DIP switch 1 DIP switch SET1 2 ON 1 2 3 4 SET1 3 To start operation press the PUMP DOWN switch 2 for 3 seconds or press after the power has been on for 3 min PUMP DOWN 1 W S TEST RUN 2 Push switch SW1 During pump down the LED POWER MODE will flash 3 times consecutively 3 blink F E D C MONITOR ERROR B A POWER MODE NOTE If the PUMP...

Page 168: ... then start again from step 3 F E D C MONITOR ERROR B A POWER MODE 3 blink blink High speed In order to interrupt the pump down operation press the PUMP DOWN switch again The LED will return to the original display before starting pump down POWER MODE LED On The pump down may stop before completion due to error To complete the pump down cor rect the error open the liquid pipe valve and then start ...

Page 169: ... Operation Stop Input 1 Input 2 Dry contact Apply voltage Edge Pulse Forced thermostat off Input 1 Edge Operation status Output 1 Output 2 Output 3 Error status Indoor unit fan operation status External heater output 4 1 External input Operation Stop mode or Forced stop mode can be selected with function setting of indoor unit A twisted pair cable 22AWG should be used Maximum length of cable is 49...

Page 170: ...witch of SW1 to NON VOL side 1 2 C Input 1 Input 2 PCB Connected unit 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 SW1 to VOL side 1 2 C Input 1 Input 2 Power supply PCB Connected unit 1 The switches can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA 2 Make the power supp...

Page 171: ... output on page 05 25 When indicator etc are connected directly Example Function setting 60 is set to 00 1 2 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 CN47 PCB Connected unit Relay Operation status When connecting with a external heater Output voltage Heater ON AC24V 25 Heater OFF Op...

Page 172: ... details refer to Chapter 4 3 Combination of external input and output on page 05 25 1 2 3 4 5 6 Power supply Power supply Power supply PCB Connected device 1 Operation status Connected device 2 Error status Indoor unit fan operation status Connected device 3 Example 4 2 External output 05 24 4 External input and output FIELD WORKING FIELD WORKING ...

Page 173: ... Function setting 46 00 or Forced stop Function setting 46 02 Operation Stop Not available Edge Operation Stop Pulse 0 2 60 00 2 Forced Thermostat OFF Not available Edge 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...

Page 174: ...eration status External heater output 6 60 06 8 Operation 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 Extern...

Page 175: ...input signal type can be selected Signal type edge or pulse can be switched by the DIP switch 2 SW2 on the External input and output PCB Edge Pulse The width of pulse must be longer than 200 msec 4 3 Combination of external input and output 05 27 4 External input and output FIELD WORKING FIELD WORKING ...

Page 176: ...p Operation Stop Remote controller On Off Indoor unit On Input In the case of Pulse input Function setting Rotary SW of External input and output PCB External input Input signal Command 46 00 60 00 1 External input and output PCB Input 1 Pulse Operation Input 2 Pulse Stop On On Off Operation Stop Remote controller On Off Indoor unit Input 1 Input 2 NOTES The last command has priority The indoor un...

Page 177: ...on setting Rotary SW of External input and output PCB External input Input signal Command 46 02 60 00 1 External input and output PCB Input 1 Pulse Forced stop Input 2 Pulse Normal On Off Operation Stop Remote controller On Off Forced stop Normal Input 1 Input 2 On On On Indoor unit NOTES When the forced stop is triggered indoor unit stops and Operation Stop operation by the re mote controller is ...

Page 178: ...d Remote controller On On Off In the case of Pulse input Function setting Rotary SW of External input and output PCB External input Input signal Command 46 03 60 00 1 External input and output PCB Input 1 Pulse Operation Input 2 Pulse Stop R C disabled On On Off Operation Stop Remote controller On Off Indoor unit Input 1 Input 2 R C disabled Off On NOTES When Operation Stop mode 2 function is used...

Page 179: ... temp Set temp Input Control output function Function setting Rotary SW of External input and output PCB External output Output signal Command 60 00 1 2 60 06 8 Output of indoor unit CN47 Low High Operation High Low Stop 60 00 1 External input and output PCB Output 1 Off On Operation 60 09 B 60 10 C On Off Stop 60 11 D The output is low when the unit is stopped Operation Stop High Low CN47 On Off ...

Page 180: ... 60 04 6 60 05 7 60 06 8 60 07 9 External input and output PCB Output 1 Off On Error On Off Normal 60 00 1 Output 2 Off On Error 60 10 C On Off Normal 60 11 D Output 3 Off On Error On Off Normal The output is ON when an error is generated for the indoor unit Error Normal High Low CN47 On Off Output 1 2 3 Indoor unit 4 4 Details of function 05 32 4 External input and output FIELD WORKING FIELD WORK...

Page 181: ...1 D External input and output PCB Output 2 Off On Fan run On Off Fan stop 60 00 1 Output 3 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 during cold air prevention High Low During thermostat off when in dry mode operation Fan run Fan stop High Low CN47 On Off Output 2 3 Indoor unit 4 4 Details of function 05 33 4 Exter...

Page 182: ...control External device Heat pump 61 06 On Enabled Auxiliary heat pump control by outdoor temperature 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 ...

Page 183: ...or external heater Design and install external heater appropriately with considering its protection External heater Indoor unit Supply air Return air Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater Fujitsu General Ltd is not responsible for inappropriate designing or installation of external heating device 4 4 Details of functio...

Page 184: ...quipment is unnecessary Off Off Off Off B Primary heater only When room temperature stays in zone B for a long time auxiliary equipment also operates On Off 1 C Auxiliary equipment also operates On On 2 On On 2 1 For standby time for auxiliary equipment operation refer to indoor unit function number 71 Con tents of function setting on page 05 2 2 When indoor unit function number 61 is set to 00 au...

Page 185: ...n 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 output is off Auxiliary heater control 2 Control that excludes A from Auxiliary heater control 1 on page 05 37 Operation Condition Heater on Heater is on as shown in following diagram of heating t...

Page 186: ...or occurred Forced thermostat off Indoor unit fan setting for external heater Disabled Temperature of heater on Thon 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 ...

Page 187: ...ndoor unit fan setting for external heater Disabled 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 and B Adjustable individually by function setting number 66 and 67 External heater output Tr Room temperature Ts Set temperature Thon Heater on...

Page 188: ...e 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 On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 4 Details of function 05 40 4 External input and output FIELD WORKING FIELD WORKING ...

Page 189: ...mode Error occurred Forced thermostat off Indoor unit fan setting for external heater Disabled 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 temperatu...

Page 190: ...perature 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 On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 4 Details of function 05 42 4 External input and output FIELD WORKING FIELD WORKING ...

Page 191: ... mode Error occurred Forced thermostat off Indoor unit fan setting for external heater Disabled 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 temperat...

Page 192: ...f 0 V Heater 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 On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 4 Details of function 05 44 4 External input and output FIELD WORKING FIELD WORKING ...

Page 193: ...sabled Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature 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 temperat...

Page 194: ...al heater Disable d Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature 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 con...

Page 195: ...r temperature zone Heat pump prohibition 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 On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 4 Details of function 05 47 4 ...

Page 196: ...al heater Disabled Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature 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 cont...

Page 197: ...t zone for minimum of 30 min Combination zone Heat pump prohibition zone On 12 V Off 0 V Heater 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 On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 4 Details of function 05 49 4...

Page 198: ...al heater Disabled Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature 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 cont...

Page 199: ...erature Factory setting Outdoor temperature 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 Combination zone Heat pump prohibition zone On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor will be on in heat pump prohibition zone Other than heating Test run 4 ...

Page 200: ...individual connection External output Heating thermostat on Humidifier Operation status The heating thermostat output for CN47 Output1 Output2 and Output3 will be on when comp on or external 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...

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