Fujitsu ABYG18KRTA Service Manual Download Page 112

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Check point 6. Check the refrigerant amount

Check 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)

- (03-38) -

2. Troubleshooting with error code

TROUBLESHOOTING

Summary of Contents for ABYG18KRTA

Page 1: ...DITIONER Ceiling type SERVICE MANUAL INDOOR ABYG18KRTA ABYG22KRTA ABYG24KRTA ABYG30KRTA ABYG36KRTA ABYG45KRTA OUTDOOR AOYG18KBTB AOYG22KBTB AOYG24KBTB AOYG30KBTB AOYG36KBTB AOYG45KBTB SR_AB004EF_06 2020 12 09 ...

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

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

Page 4: ......

Page 5: ...1 GENERAL INFORMATION 2020 11 16 SR_CH01_AB004EF_03 ...

Page 6: ...CONTENTS 1 GENERAL INFORMATION 1 Specifications 01 1 1 1 Indoor unit 01 1 1 2 Outdoor unit 01 7 2 Dimensions 01 10 2 1 Indoor unit 01 10 2 2 Outdoor unit 01 14 ...

Page 7: ...inum Enclosure Material Steel sheet Color White Approximate color of Munsell N9 25 Dimensions H W D Net mm 235 1 080 705 Gross 330 1 165 825 Weight Net kg 24 Gross 33 Connection pipe Size Liquid mm in Ø6 35 Ø1 4 Gas Ø12 70 Ø1 2 Method Flare Drain hose Material PVC Tip diameter mm Ø25 I D Ø32 O D Operation range Cooling C 18 to 32 RH 80 or less Heating C 16 to 30 Remote controller Option Wired remo...

Page 8: ...gn Cooling kW 5 2 35 C 6 0 35 C Heating Average 4 4 10 C 4 8 10 C SEER Cooling kWh kWh 6 2 6 1 SCOP Heating Average 4 1 4 0 Annual energy consumption QCE kWh a 293 344 QHE Average 1 501 1 677 Sound power level Cooling HIGH dB A 53 57 Heating 53 57 1 1 Indoor unit 01 2 1 Specifications GENERAL INFORMATION GENERAL INFORMATION ...

Page 9: ...erial Steel sheet Color White Approximate color of Munsell N9 25 Dimensions H W D Net mm 235 1 390 705 Gross 330 1 475 825 Weight Net kg 31 Gross 41 Connection pipe Size Liquid mm in Ø6 35 Ø1 4 Ø9 52 Ø3 8 Gas Ø12 70 Ø1 2 Ø15 88 Ø5 8 Method Flare Drain hose Material PVC Tip diameter mm Ø25 I D Ø32 O D Operation range Cooling C 18 to 32 RH 80 or less Heating C 16 to 30 Remote controller Option Wired...

Page 10: ...gn Cooling kW 6 8 35 C 8 5 35 C Heating Average 6 0 10 C 8 0 10 C SEER Cooling kWh kWh 6 2 6 1 SCOP Heating Average 4 1 4 0 Annual energy consumption QCE kWh a 384 486 QHE Average 2 042 2 796 Sound power level Cooling HIGH dB A 56 60 Heating 56 60 1 1 Indoor unit 01 4 1 Specifications GENERAL INFORMATION GENERAL INFORMATION ...

Page 11: ...ype Aluminum Enclosure Material Steel sheet Color White Approximate color of Munsell N9 25 Dimensions H W D Net mm 235 1 700 705 Gross 330 1 785 825 Weight Net kg 38 Gross 48 Connection pipe Size Liquid mm in Ø9 52 Ø3 8 Gas Ø15 88 Ø5 8 Method Flare Drain hose Material PVC Tip diameter mm Ø25 I D Ø32 O D Operation range Cooling C 18 to 32 RH 80 or less Heating C 16 to 30 Remote controller Option Wi...

Page 12: ...rage A Pdesign Cooling kW 9 5 35 C Heating Average 8 7 10 C SEER Cooling kWh kWh 6 37 SCOP Heating Average 4 21 Annual energy consump tion QCE kWh a 524 QHE Average 2 904 Sound power level Cooling HIGH dB A 59 Heating 59 1 1 Indoor unit 01 6 1 Specifications GENERAL INFORMATION GENERAL INFORMATION ...

Page 13: ...ensions H W D Net mm 632 799 290 Gross 692 940 375 Weight Net kg 36 38 Gross 40 42 Connection pipe Size Liquid mm in Ø6 35 Ø1 4 Gas Ø12 70 Ø1 2 Method Flare Pre charge length m 20 Max length 30 Max height difference 20 25 Operation range Cooling C 15 to 46 Heating 15 to 24 Drain hose Material PP Tip diameter mm Ø13 0 I D Ø16 0 to Ø16 8 O D NOTES Specifications are based on the following conditions...

Page 14: ...ns H W D Net mm 716 820 315 788 940 320 Gross 776 961 450 966 1 027 445 Weight Net kg 42 52 Gross 46 60 Connection pipe Size Liquid mm in Ø6 35 Ø1 4 Ø9 52 Ø3 8 Gas Ø12 70 Ø1 2 Ø15 88 Ø5 8 Method Flare Pre charge length m 20 30 Max length 30 50 Max height difference 25 30 Operation range Cooling C 15 to 46 Heating 15 to 24 Drain hose Material PP LDPE Tip diameter mm Ø13 0 I D Ø16 0 to Ø16 7 O D NOT...

Page 15: ...l 10YR 7 5 1 0 Dimensions H W D Net mm 788 940 320 998 940 320 Gross 966 1 027 445 1 176 1 027 445 Weight Net kg 52 67 Gross 60 75 Connection pipe Size Liquid mm in Ø9 52 Ø3 8 Gas Ø15 88 Ø5 8 Method Flare Pre charge length m 30 Max length 50 Max height difference 30 Operation range Cooling C 15 to 46 Heating 15 to 24 Drain hose Material LDPE Tip diameter mm Ø13 0 I D Ø16 0 to Ø16 7 O D NOTES Speci...

Page 16: ...ndoor unit Top view Indoor unit Dimensions Space required for inﬆallation The length of the bolt here is 30 mm 75 10 175 290 75 49 84 55 110 923 1 080 145 181 349 119 98 125 103 235 100 125 91 80 140 705 206 179 115 41 290 178 313 89 ø100 mm hole 89 110 2 1 Indoor unit 01 10 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 17: ... view Indoor unit Dimensions Space required for inﬆallation The length of the bolt here is 30 mm 75 10 175 290 75 49 84 55 110 1 390 1 233 145 181 349 119 98 125 103 235 100 125 91 80 140 705 206 179 115 41 290 178 313 89 ø100 mm hole 89 110 2 1 Indoor unit 01 11 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 18: ... view Indoor unit Dimensions Space required for inﬆallation The length of the bolt here is 30 mm 75 10 175 290 75 49 84 55 110 1 543 1 700 705 206 179 115 41 125 103 349 119 145 181 98 313 89 235 100 125 91 80 140 290 178 ø100 mm hole 89 110 2 1 Indoor unit 01 12 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 19: ...r more Obﬆruction Floor Indoor unit Required ceiling height varies according to the ceiling mode setting of function setting No 20 Ceiling height m Ceiling mode Standard High ceiling 18 22 24 and 30 models 2 7 3 5 36 and 45 models 3 5 4 3 2 1 Indoor unit 01 13 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 20: ...view Bottom view Side view Valve part Top view 580 799 19 68 16 290 33 30 109 353 632 20 330 Pitch of bolts for installation Pitch of bolts for installation 4 M10 hole Airflow Drain port Ø42 37 120 184 399 180 2 2 Outdoor unit 01 14 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 21: ... 315 20 18 Airflow 600 109 353 330 Pitch of bolts for installation Pitch of bolts for installation 4 M10 hole 820 19 68 716 20 Drain port Ø42 37 410 Bottom view Side view Valve part 119 184 194 2 2 Outdoor unit 01 15 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 22: ... Gas Liquid valve Ф28 Cable port Ф28 Cable port 89 650 35 7 48 143 147 39 8 53 9 Liquid 40 320 354 8 62 9 Gas 320 139 8 Ф28 Cable port Ф28 Cable port 96 50 120 Pipe port 55 25 40 5 264 6 351 9 Pipe Cable port 47 6 15 2 62 6 15 6 Rear view 50 Ф28 Cable port Ф28 Cable port 25 141 9 70 67 Pipe port 2 2 Outdoor unit 01 16 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 23: ...iquid 40 320 354 8 62 9 Gas 12 9 297 2 Gas valve Liquid valve Ф28 Cable port 1 1 8 29 Pipe port 23 4 129 1 85 3 50 29 Pipe port A 95 89 A 3 Way valve Liquid 3 Way valve Gas 320 139 8 96 40 5 Ф28 Cable port 120 Pipe port 55 25 50 B B 50 25 141 9 70 67 Pipe port 264 6 351 9 47 6 15 2 62 6 15 6 2 2 Outdoor unit 01 17 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 24: ...2 2 Outdoor unit 01 18 2 Dimensions GENERAL INFORMATION GENERAL INFORMATION ...

Page 25: ...2 TECHNICAL DATA AND PARTS LIST 2020 12 09 SR_CH02_AB004EF_05 ...

Page 26: ...4 4 1 Indoor unit 02 24 4 2 Outdoor unit 02 25 5 Optional parts 02 26 5 1 Indoor unit 02 26 6 Refrigerant system diagrams 02 29 6 1 Model AOYG18KBTB 02 29 6 2 Model AOYG22KBTB 02 30 6 3 Models AOYG24KBTB and AOYG30KBTB 02 31 6 4 Models AOYG36KBTB and AOYG45KBTB 02 32 7 Wiring diagrams 02 33 7 1 Indoor unit 02 33 7 2 Outdoor unit 02 35 8 PC board diagrams 02 38 8 1 Models ABYG18KRTA ABYG22KRTA ABYG...

Page 27: ...rs working in the local area shall be instructed on the nature of work being carried out Work in confined spaces shall be avoided The area around the workspace shall be sectioned off Ensure that the conditions within the area have been made safe by control of flammable ma terial Electric shock may occur After turning off the power always wait 5 minutes before touching electrical components Do not ...

Page 28: ...KRTA and ABYG22KRTA Chassis 10 16 15 14 8 12 13 19 20 17 23 18 22 21 24 9 7 6 6 5 4 4 27 26 25 11 28 9 5 2 2 1 1 3 29 2 1 Models ABYG18KRTA and ABYG22KRTA 02 2 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 29: ...4009 Hose sub assy 15 9383384004 L and R louver 16 9383385001 Base Louver 17 9900896027 Terminal 5P 18 9710995972 Main PCB for 18 model 9710995989 Main PCB for 22 model 19 9384312006 Box Gear sub assy 20 9900960049 Thermistor Room 21 9710661006 Power supply PCB 22 9710019005 2 way remote PCB 23 9306489045 Terminal 3P 24 9384320001 Side panel R sub assy 25 9900892029 Thermistor Pipe 26 9384287021 E...

Page 30: ...hassis 2 1 14 20 19 18 12 16 17 23 24 21 27 22 26 25 28 13 11 9 9 8 6 6 6 8 7 31 30 29 15 32 33 5 4 13 13 10 2 3 2 2 Models ABYG24KRTA and ABYG30KRTA 02 4 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 31: ...44010 Flap assy 3 fan 18 9384324009 Hose sub assy 19 9383384004 L and R louver 20 9383385001 Base Louver 21 9900896027 Terminal 5P 22 9710995996 Main PCB for 24 model 9711524003 Main PCB for 30 model 23 9384312006 Box Gear sub assy 24 9900960049 Thermistor Room 25 9710661006 Power supply PCB 26 9710019005 2 way remote PCB 27 9306489045 Terminal 3P 28 9384320001 Side panel R sub assy 29 9900892029 ...

Page 32: ...sis 11 17 16 15 9 13 14 20 21 18 24 25 19 23 22 26 10 8 7 7 5 6 4 4 4 4 6 5 29 28 27 12 30 31 3 10 10 10 6 6 1 2 1 2 2 3 Models ABYG36KRTA and ABYG45KRTA 02 6 2 Indoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 33: ...384004 L and R louver 17 9383385001 Base Louver 18 9900896027 Terminal 5P 19 9711524010 Main PCB for 36 model 9711524027 Main PCB for 45 model 20 9384312006 Box Gear sub assy 21 9900960049 Thermistor Room 22 9710661044 Power supply PCB for 36 model 9710661037 Power supply PCB for 45 model 23 9710019005 2 way remote PCB 24 9306489045 Terminal 3P 25 9707457056 Reactor assy 26 9384320001 Side panel R...

Page 34: ...dels AOYG18KBTB and AOYG22KBTB Exterior parts and Chassis 1 2 4 5 a 17 b 10 6 7 8 9 13 12 3 11 14 15 16 18 3 1 Models AOYG18KBTB and AOYG22KBTB 02 8 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 35: ...y 8 9900565060 Thermistor Outdoor temp 9 9900984014 Heat exchanger thermistor 10 9322314024 Base assy 11 9322144003 Drain pipe 12 9322555021 Front panel assy 13 9319151007 Emblem 14 9322135001 Blow grille 15 9322136008 Propeller fan 16 9603657017 Brushless motor 17 9322553010 Motor bracket assy 18 9322275004 Condenser total assy a Inverter assy b Hair pin cushion 3 1 Models AOYG18KBTB and AOYG22KB...

Page 36: ... Compressor 50 51 52 53 54 55 a 56 b A A 60 59 58 57 3 1 Models AOYG18KBTB and AOYG22KBTB 02 10 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 37: ...9322463029 Pulse motor valve assy 55 9322474001 2 way valve assy 56 9387831016 3 way valve assy 57 9322535009 S insulator B 58 9322536006 S insulator F 59 9322537003 S insulator H 60 9323045002 S insulator V a Valve bracket b Muffler 3 1 Models AOYG18KBTB and AOYG22KBTB 02 11 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 38: ...AOYG24KBTB Exterior parts and Chassis 17 18 10 3 20 1 4 2 19 6 5 15 12 9 8 7 a 21 22 b 16 13 14 11 3 2 Model AOYG24KBTB 02 12 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 39: ...21043 Heat sink 11 9322144003 Drain pipe 12 9322322029 Base assy 13 9322386007 Cushion rubber 14 9810028006 Thermistor stopper 15 9319151007 Emblem 16 9322149008 Blow grille 17 9322555038 Front panel assy 18 9322150004 Propeller fan 19 9603601003 Brushless motor 20 9322553034 Motor bracket assy 21 9900984014 Thermistor Heat exchanger 22 9317089630 Condenser total assy a Inverter assy b Hair pin cu...

Page 40: ... Compressor 57 58 59 60 61 50 53 54 55 a A B A B 51 52 56 b 3 2 Model AOYG24KBTB 02 14 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 41: ...3029 Pulse motor valve assy 55 9322474001 2 way valve assy 56 9387831016 3 way valve assy 57 9322824004 S insulator K 58 9323045002 S insulator V 59 9322501004 S insulator H 60 9322529008 S insulator F 61 9322503008 S insulator B a Valve bracket b Muffler 3 2 Model AOYG24KBTB 02 15 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 42: ...6KBTB Exterior parts and chassis 14 6 9 11 7 2 1 8 15 21 16 17 13 12 24 25 18 19 20 22 23 a b 10 4 5 3 3 3 3 Models AOYG30KBTB and AOYG36KBTB 02 16 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 43: ...or 36 model 12 313166024302 Drain cap 13 9303029015 Drain assy 14 9350255009 Base assy Service 15 9383876004 Service panel sub assy 16 9383878008 Front pipe cover 17 9351355005 Emblem rear 18 9383863004 Front panel assy 19 9383604003 Blow grille 20 9383689000 Blow grille insulation 21 9383882005 Left panel sub assy 22 9383336003 Propeller fan 23 9603732011 Brushless motor 24 9383862007 Motor brack...

Page 44: ... Compressor 58 57 53 60 59 b 50 52 63 64 B A c B 56 A 61 51 55 a 54 62 3 3 Models AOYG30KBTB and AOYG36KBTB 02 18 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 45: ...ice 57 9970209000 Expansion valve coil 58 9370947328 Expansion valve assy 59 9379079013 3 way valve assy 60 9377958037 3 way valve assy 61 9900985035 Thermistor Compressor 62 9379179072 Rubber washer E 63 9383821004 Compressor assy 64 9379647168 S ABS body a Thermostat holder b Joint pipe D c Wiring fixation unit 3 3 Models AOYG30KBTB and AOYG36KBTB 02 19 3 Outdoor unit parts list TECHNICAL DATA A...

Page 46: ...5KBTB Exterior parts and chassis 14 6 9 11 7 2 1 8 15 21 16 17 13 12 24 25 18 22 23 a b 10 4 5 3 3 19 20 3 4 Model AOYG45KBTB 02 20 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 47: ...66024302 Drain cap 13 9303029015 Drain assy 14 9350255009 Base assy Service 15 9383876011 Service panel sub assy 16 9383878008 Front pipe cover 17 9351355005 Emblem rear 18 9383863011 Front panel assy 19 9383604003 Blow grille 20 9383689000 Blow grille insulation 21 9383882012 Left panel sub assy 22 9383336003 Propeller fan 23 9603733018 Brushless motor 24 9383862014 Motor bracket assy 25 93744206...

Page 48: ... Compressor 58 57 53 60 63 64 59 b 50 52 A c A 61 51 55 a 54 56 B B 62 3 4 Model AOYG45KBTB 02 22 3 Outdoor unit parts list TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 49: ...ce 57 9970209000 Expansion valve coil 58 9370947311 Expansion valve assy 59 9379079013 3 way valve assy 60 9377958037 3 way valve assy 61 9900985028 Thermistor Compressor 62 9379179089 Rubber washer F 63 9810620002 Compressor 64 9379647168 S ABS body a Thermistor spring b Joint pipe D c Accumulator holder A d Wiring fixation unit 3 4 Model AOYG45KBTB 02 23 3 Outdoor unit parts list TECHNICAL DATA ...

Page 50: ... Installation manual 1 Hose band 1 Template 1 Cable tie large 4 M10 nut A with flange 4 Cable tie small 1 M10 nut B with spring lock washer 4 Remote controller cable hole cap 1 Washer 8 Tapping screw White 6 Coupler heat insulation large 1 Tapping screw 3 Coupler heat insulation small 1 4 1 Indoor unit 02 24 4 Accessories TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 51: ...able hole cap 1 Washer 8 Tapping screw White 6 Coupler heat insulation large 1 Casing guard 1 Coupler heat insulation small 1 Tapping screw 3 4 2 Outdoor unit Models AOYG18KBTB AOYG22KBTB and AOYG24KBTB Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain pipe 1 Models AOYG30KBTB AOYG36KBTB and AOYG45KBTB Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 ...

Page 52: ...pact remote controller concentrates on the basic functions such as Start Stop fan control temperature setting and operation mode Wire type Non polar 2 wire Simple remote controller UTY RHRY Compact remote controller concentrates on the basic functions such as Start Stop fan control and temperature setting Wire type Non polar 2 wire IR receiver kit with wireless remote controller UTY LBTYH Unit con...

Page 53: ... peripheral devices and air conditioner PCB For control output port External input and output PCB UTY XCSX Use to connect with external devices and air conditioner PCB External input and output PCB box UTZ GXEA For installing the External input and output PCB Wireless LAN adapter UTY TFSXZ1 Remotely manage an air conditioning system using mobile devices such as smartphones and tablets For connecti...

Page 54: ...upply UTY VTGXV This converter is required when connecting single split system to VRF network system External switch controller UTY TERX Air conditioner switching can be controlled by connecting other external sensor switches NOTE Combined use of following optional parts and Wireless LAN adapter UTY TFSXZ1 is not allowed External input and output PCB UTY XCSX Modbus converter KNX converter 5 1 Ind...

Page 55: ...ng ThD ThR ThO ThHO Muffler Accumulator ThPI Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Heat exchanger out temperature ThD ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI ThHM Thermistor Heat exchanger middle temperature ThHM 6 1 Model AOYG18KBTB 02 29 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST...

Page 56: ...Accumulator ThPI ThC Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Heat exchanger out temperature ThD Thermistor Compressor temperature ThC ThO ThHO Thermistor Room temperature Thermistor Pipe temperature ThR ThPI ThHM Thermistor Heat exchanger middle temperature ThHM 6 2 Model AOYG22KBTB 02 30 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA ...

Page 57: ...D 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 Thermistor Heat Exchanger Med temperature ThHM ThHM 6 3 Models AOYG24KBTB and AOYG30KBTB 02 31 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST TECHNIC...

Page 58: ...hO 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 sensor ThHM Thermistor Heat Exchanger Med temperature ThHM 6 4 Models AOYG36KBTB and AOYG45KBTB 02 32 6 Refrigerant system diagrams TECHNICAL DATA AND PARTS LIST...

Page 59: ...7 Wiring diagrams 7 1 Indoor unit Models ABYG18KRTA ABYG22KRTA ABYG24KRTA and ABYG30KRTA 7 1 Indoor unit 02 33 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 60: ... Models ABYG36KRTA and ABYG45KRTA 7 1 Indoor unit 02 34 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 61: ...7 2 Outdoor unit Model AOYG18KBTB Models AOYG22KBTB and AOYG24KBTB 7 2 Outdoor unit 02 35 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 62: ... Model AOYG30KBTB Model AOYG36KBTB 7 2 Outdoor unit 02 36 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 63: ... Model AOYG45KBTB 7 2 Outdoor unit 02 37 7 Wiring diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 64: ...11 73 12 55 1 55 2 55 3 55 4 55 5 55 6 55 7 55 8 55 9 55 10 54 1 54 2 54 3 54 4 263 1 263 2 263 3 263 4 263 5 263 6 263 7 263 8 263 9 263 10 262 1 262 2 262 3 262 4 46 1 46 2 46 3 14 1 14 2 14 3 32 1 32 2 32 3 9 1 9 2 9 3 8 1 8 2 11 1 11 2 11 3 11 4 11 5 67 1 67 2 67 3 67 4 67 5 48 1 48 2 48 3 48 4 48 5 48 6 48 7 48 8 48 9 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 1 1 2 1 3 1 4 1 5 1 6 3 1 3 2 3 3 3 4...

Page 65: ... 4 55 5 55 6 55 7 55 8 55 9 55 10 54 1 54 2 54 3 54 4 263 1 263 2 263 3 263 4 263 5 263 6 263 7 263 8 263 9 263 10 262 1 262 2 262 3 262 4 46 1 46 2 46 3 14 1 14 2 14 3 32 1 32 2 32 3 9 1 9 2 9 3 8 1 8 2 11 1 11 2 11 3 11 4 11 5 67 1 67 2 67 3 67 4 67 5 48 1 48 2 48 3 48 4 48 5 48 6 48 7 48 8 48 9 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 1 1 2 1 3 1 4 1 5 1 6 3 1 3 2 3 3 3 4 2 1 2 2 2 3 2 4 8 1 8 2 8...

Page 66: ... Thermiﬆor Thermiﬆor Outdoor temp 35 2 k 12 6 k 8 0 k 2 6 V 3 8 V 4 1 V Temperature P1 Thermiﬆor Characteriﬆics 0 20 30 Thermiﬆor Thermiﬆor Pipe temp 16 1 k 6 0 k 3 8 k 1 1 V 2 2 V 2 8 V Temperature P10 Thermiﬆor Characteriﬆics 0 20 30 Thermiﬆor Thermiﬆor Pipe mid temp 16 1 k 6 0 k 3 8 k 1 1 V 2 2 V 2 8 V Temperature U V V W U W Compressor Winding Resiﬆance 1 910 20 4 WAY VALVE COIL DC Resiﬆance 2...

Page 67: ...EMI FILTER KRFC 13 2 TURNS U V V W U W Compressor Winding Resiﬆance 1 916 20 4 WAY VALVE COIL DC Resiﬆance 2780 20 1 Red 3 Blue 1 Red 4 Orange 1 Red 5 Yellow 1 Red 6 White P30 Expansion Valve Coil 46 0 20 Recommended Drive Condition Unipolar Drive 1 2 Phase Excitation Coil resistance 1 3 4 5 6 Pin No Terminal code Vm GND Vcc Vsp FG Function of terminal Revolution pulse output Speed control voltage...

Page 68: ...KRFC 13 2 TURNS U V V W U W Compressor Winding Resistance 1 916 20 4 WAY VALVE COIL DC Resistance 2780 20 1 Red 3 Blue 1 Red 4 Orange 1 Red 5 Yellow 1 Red 6 White P30 Expansion Valve Coil 46 0 20 Recommended Drive Condition Unipolar Drive 1 2 Phase Excitation Coil resistance 1 3 4 5 6 Pin No Terminal code Vm GND Vcc Vsp FG Function of terminal Revolution pulse output Speed control voltage input Co...

Page 69: ... 1 A WHITE P400 U P401 V P402 W COMPRESSOR DC FAN MOTOR 1 HIGH PRESSURE SWITCH THERMISTOR HEATSINK TEMP EXPANSION VALVE COIL 1 HIGH PRESSURE SENSOR THERMISTOR COMP TEMP THERMISTOR PIPE MID TEMP THERMISTOR PIPE OUT TEMP THERMISTOR DISCHARGE TEMP THERMISTOR OUTDOOR TEMP 4WV EEV1 PRES SENSOR HI FM HP SW1 COMP U V V W U W Compressor Winding Resistance 0 766 20 1 3 4 5 6 Pin No Terminal code Vm GND Vcc...

Page 70: ...8 6 Models AOYG30KBTB AOYG36KBTB and AOYG45KBTB 02 44 8 PC board diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...

Page 71: ...3 TROUBLESHOOTING 2020 07 01 SR_CH03_AB004EF_01 ...

Page 72: ...door unit 03 17 2 14 E 53 Drain pump error Indoor unit 03 18 2 15 E 57 Damper Open Close detection limit switch error 03 19 2 16 E 58 Intake grille error Indoor unit 03 20 2 17 E 62 Outdoor unit main PCB error Outdoor unit 03 21 2 18 E 63 Inverter error Outdoor unit 03 22 2 19 E 64 PFC circuit error Outdoor unit 03 23 2 20 E 65 Trip terminal L error Outdoor unit 03 24 2 21 E 71 Discharge thermisto...

Page 73: ...nic Expansion Valve EEV 03 51 4 4 Indoor unit fan motor 03 55 4 5 Outdoor unit fan motor 03 56 4 6 Pressure switch 03 57 4 7 4 way valve coil solenoid coil 4 way valve 03 58 4 8 Discharge pressure sensor 03 59 5 Thermistor resistance values 03 60 5 1 Indoor unit 03 60 5 2 Outdoor unit 03 61 CONTENTS continued ...

Page 74: ......

Page 75: ...rature sensor error Indoor unit 41 E 42 Indoor unit heat exchanger sensor error Indoor unit 42 E 51 Indoor unit fan motor error Indoor unit 51 E 53 Drain pump error Indoor unit 53 E 57 Damper Open Close detection limit switch error 57 E 58 Intake grille error Indoor unit 58 E 62 Outdoor unit main PCB error Outdoor unit 62 E 63 Inverter error Outdoor unit 63 E 64 PFC circuit error Outdoor unit 64 E...

Page 76: ...or unit 2 5 15 E 41 Room temperature sensor error Indoor unit 2 5 15 E 42 Indoor unit heat exchanger sensor error Indoor unit 2 5 15 E 51 Indoor unit fan motor error Indoor unit 2 5 15 E 62 Outdoor unit main PCB error Outdoor unit 2 6 2 E 63 Inverter error Outdoor unit 2 6 3 E 71 Discharge thermistor error Outdoor unit 2 7 1 E 73 Heat exchanger Middle Outlet temperature thermistor error Outdoor un...

Page 77: ...1 Reset the power and operate Does error indication show again If no go to Check point 1 2 Check point 2 Check connection Check any loose or removed connection line of indoor unit and outdoor unit Check connection condition is control unit If there is loose connector open cable or mis wiring If there is an abnormal condition correct it by referring to the installation manual or the DESIGN TECHNICA...

Page 78: ...46 If outdoor fan motor is abnormal replace outdoor unit fan motor and main PCB If the checked parts are normal replace the main PCB End Check point 1 2 Check external cause such as noise Check the complete insulation of the grounding Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End 2 1 E 11 Se...

Page 79: ...eck point 2 Check connection Check any loose or removed connection line of indoor unit and outdoor unit Check connection condition is control unit If there is loose connector open cable or mis wiring If there is an abnormal condition correct it by referring to the installation manual or the DESIGN TECHNICAL MANUAL Check point 3 Check the voltage of power supply Check the voltage of power supply Ch...

Page 80: ...t is abnormal replace 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 Serial communication error Serial forward transfer error Indoor unit 03 6 2 Troubleshooting with error c...

Page 81: ...DC 12 V remote controller is failure Main PCB is normal Replace remote control If it is DC 0 V main PCB is failure Check remote controller once again Replace main PCB Check voltage at CN14 of main PCB terminal 1 3 terminal 1 2 Power supply to the remote controller Upon correcting the removed connec tor or mis wiring reset the power End Check Point 2 Wire installation wrong remote controller group ...

Page 82: ...k the rotation of fan Rotate the fan by hand when the operation is off Check if fan is caught drop off or locked motor If fan or bearing is abnormal replace it Check point 2 Check ambient temperature around the motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check indoo...

Page 83: ...correct Main PCB failure Check point 1 Check the total capacity of indoor units Check the total capacity of the indoor units If abnormal condition is found correct it referring to the installation manual or DESIGN TECH NICAL MANUAL Check point 2 Replace main PCB If check point 1 does not improve the symptom change main PCB End 2 5 E 22 Indoor unit capacity error Indoor unit 03 9 2 Troubleshooting ...

Page 84: ... point 1 Check the type of indoor unit Check the type of the connected indoor unit If there is an abnormal condition correct it by refer to the installation manual or the DESIGN TECHNICAL MANAL Check point 2 Replace main PCB If check point 1 do not improve the symptom replace main PCB of the outdoor unit End 2 6 E 23 Combination error Outdoor unit 03 10 2 Troubleshooting with error code TROUBLESHO...

Page 85: ...eck point 3 Replace main PCB Change main PCB End Check point 1 2 Check external cause such as noise Check if the ground connection is proper Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave End NOTE EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory whi...

Page 86: ...ing is abnormal replace it Check point 2 Check ambient temperature around the motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check indoor unit fan motor Check indoor unit fan motor Refer to indoor unit fan motor in Service parts information on page 03 46 If indoor unit...

Page 87: ...e Controller PCB and indicator PCB failure Check point 1 Check the MANUAL AUTO but ton If MANUAL AUTO button is disabled on off switching replace it Check if MANUAL AUTO button is kept pressed Check On Off switching operation by using a meter Check point 2 Replace main PCB and indicator PCB If Check Point 1 does not improve the symptom change main PCB and indicator PCB End 2 9 E 35 MANUAL AUTO but...

Page 88: ...f there is a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 2 Check connection of Connector Check if connector is removed Check erroneous connection Check if cable is open Upon correcting t...

Page 89: ...onnector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the room thermistor resistance value refer to Thermistor resistance values on page 03 60 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of each indoor unit and check terminal voltage at thermis tor DC 5 0 V N...

Page 90: ...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 60 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of each indoor unit and check terminal voltage at...

Page 91: ...an is caught dropped off or locked motor If fan or bearing is abnormal replace it Check point 2 Check ambient temperature around motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check indoor unit fan motor Check Indoor unit fan motor Refer to indoor unit fan motor in Ser...

Page 92: ...oint 2 Check connector and wire Check loose contact of CN9 and shorted wire pinched wire Replace float switch if the wire is abnormal Check point 3 Check drain hose Check drain hose If there is hose clogging Please clear the clog Check point 4 Check voltage of power supply and drain pump Check drain pump If drain pump is not run on the working condition check the voltage of the CN71 on the main PC...

Page 93: ...switch Check operation of limit switch any blocking by dust etc Remove limit switch and check ON OFF switching operation by using a meter If limit switch is detective replace it Check point 2 Check connector CN18 wire Check loose contact of CN18 shorted wire pinched wire Replace limit switch if the wire is abnormal Check point 3 Check Damper Check the obstruction of damper movement Check the dampe...

Page 94: ... 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 Replace main PCB If Check Point 1 and 2 do not improve the symptom change m...

Page 95: ...k point 1 Reset power supply and operate If no go to Check point 1 2 Does error indication show again Check point 2 Replace main PCB Change main PCB End Check point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generat ed Check if ground is connection correctly or there are no related cables near the power line End 2 17 E 62 Outdoor unit...

Page 96: ... point 1 2 Error displayed again Check point 2 Check the wiring power supply to inverter PCB Connector and wiring connection state check Cable open check Check point 3 Replace inverter PCB Replace inverter PCB End Check point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no r...

Page 97: ...same circuit Momentary power failure Check if there is a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 2 Check connection of Connector Check if connector is removed Check erroneous connect...

Page 98: ...or unit Main PCB When the signal from FO terminal 13 15 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 20 E 65 Trip terminal L error Outdoor unit 03 24 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 99: ...einstalling due to removed connector or incorrect wiring Check point 2 Remove connector and check thermistor resistance value For the discharge temperature thermistor resistance value refer to Thermistor resistance values on page 03 60 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of outdoor unit and check t...

Page 100: ...onnection 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 60 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC 5 0 V NOTE F...

Page 101: ...lling 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 60 If thermistor is either open or shorted replace it and reset the power Check point 3 Check voltage of main PCB Make sure circuit diagram of outdoor unit and check terminal...

Page 102: ...or or mis wiring reset the power Check if the terminal connection is loose Check if connector is removed Check erroneous connection Check if cable is open Check point 3 Replace main PCB If Check point 1 2 do not improve the symptom change main PCB End Check point 1 2 Check external cause at Indoor and Outdoor Voltage drop or Noise Instant drop Check if there is a large load electric apparatus in t...

Page 103: ...ctor 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 Change main PCB and check operation again End Type of contact C H Pressure Charac...

Page 104: ...or 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 2 Replace inverter PCB If Check point 1 do not improve the symptom change i...

Page 105: ...an abnormal noise show replace compres sor Check point 2 Check connection of around the compressor components For compressor terminal main PCB Check if connector is removed Check erroneous connection Check if cable is open Refer to inverter compressor in Service parts information on page 03 46 Upon correcting the removed connector or mis wiring reset the power Check point 3 Replace main PCB If Che...

Page 106: ...lace it Check point 2 Check ambient temperature around motor Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check point 3 Check outdoor unit fan motor Check outdoor unit fan motor Refer to outdoor unit fan motor in Service parts information on page 03 46 If outdoor unit fan motor is abnor...

Page 107: ...nector connection failure Thermistor failure Coil failure 4 way valve failure Main PCB failure Check point 1 Check air filter condition Check air filter dirty If the air filter dirty clean up the air filter Check point 2 Check connection of connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset ...

Page 108: ... 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 34 2 Troubleshooting with error...

Page 109: ...valve For heating operation check liquid side of the 3 way valve Check point 2 Check the electronic expansion valve EEV and strainer Check if EEV open Refer to outdoor unit Electronic Expansion Valve EEV in Service parts information on page 03 46 Check the strainer clogging Check point 3 Check the outdoor unit fan and heat exchanger Check for foreign object at heat exchanger Check if fan can be ro...

Page 110: ...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 36 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 111: ... 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 Check the motor Refer to outdoor unit fan motor in Service parts information...

Page 112: ...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 38 2 Troubleshooting with error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 113: ...er sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check electrical components Check the voltage of power supply Check if AC 198 to 264 V appears at outdoor unit terminal L N If no go to Check point 1 and Check point 2 Check fuse in fi...

Page 114: ... a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check electrical components Check the voltage of power supply Check if AC 198 to 264 V appears at outdoor unit terminal L N If no go to C...

Page 115: ...nt drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power sup ply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check point 3 Check wired remote...

Page 116: ...ation condition Check connection pipe specified pipe length and pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to the installation manual or the DESIGN TECHNICAL MANUAL Check point 5 Check Refrigeration cycle Check if strainer is clogged Refer to the figure below Measure gas pressure and if there is a leakage correct it Check t...

Page 117: ...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 43 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 118: ...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 119: ...in stable condi tion Is main unit broken or deformed at the time of transportation or maintenance Is the filter clogged Is drain hose connection loose Is there a trap in drain hose Is drain hose clogged Check gas pressure and cor rect it if there was a gas leak MPa MPa Is fan rotating End End 3 6 Water leaking 03 45 3 Troubleshooting without error code TROUBLESHOOTING TROUBLESHOOTING ...

Page 120: ...defect of compressor is con sidered Locked compressor due to clogged dirt or less oil Is gas pipe valve open Low pressure is too low Defective compressor can be considered due to inside dirt clogging or broken component Replace compressor Check if refrigerant is leaking MPa MPa Replace compressor End Check if strainer is clogged Refer to outdoor EEV in this chapter End Check main PCB connection of...

Page 121: ...PCB W402 W Compressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 910 Ω at 20 C U R W C V S RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 47 4 Service par...

Page 122: ...W402 W Compressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 916 Ω at 20 C R U T W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 48 4 Service parts i...

Page 123: ...W402 W Compressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 1 125 Ω at 25 C R U C W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 49 4 Service parts i...

Page 124: ...ompressor BLACK WHITE RED W400 U W401 V Check point 2 Check winding resistance Check winding resistance of each terminal Resistance value 0 766 Ω at 20 C R U C W S V RED WHITE BLACK If the resistance value is 0 Ω or infinite replace compressor Check point 3 Replace inverter PCB If check point 1 to 2 do not improve the symptom replace main PCB 4 2 Inverter compressor 03 50 4 Service parts informati...

Page 125: ...normal replace EEV Check point 3 Check voltage from main PCB Remove connector and check voltage DC 12 V If it does not appear replace main PCB Check point 4 Check noise at start up Turn on the power and check the operation noise If an abnormal noise does not show replace main PCB Check point 5 Check opening and closing operation of valve When valve is closed it has a temp difference between inlet ...

Page 126: ...let and outlet as shown be low Pipe In Pipe Out If there is a difference like shown below there is a possibility of inside clogged In this case replace the strainer Pipe In Pipe Out 4 3 Outdoor unit Electronic Expansion Valve EEV 03 52 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 127: ... point 3 Check voltage from main PCB Remove connector and check voltage DC 12 V If it does not appear replace main PCB Check point 4 Check noise at start up Turn on the power and check the operation noise If an abnormal noise does not show replace main PCB Check point 5 Check opening and closing operation of valve When valve is closed it has a temp difference between inlet and outlet Pipe In Pipe ...

Page 128: ...let and outlet as shown be low Pipe In Pipe Out If there is a difference like shown below there is a possibility of inside clogged In this case replace the strainer Pipe In Pipe Out 4 3 Outdoor unit Electronic Expansion Valve EEV 03 54 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 129: ...of indoor fan motor Refer to below Circuit test Vm and GND terminal NOTE Vm DC voltage GND Earth terminal If they are short circuited below 300 kΩ replace 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 White Control voltage Vcc 6 Yellow Speed command Vsp 7 ...

Page 130: ... outdoor fan motor Refer to below Circuit test Vm and GND terminal NOTE Vm DC voltage GND Earth terminal If they are short circuited below 300 kΩ replace outdoor fan motor and controller PCB Pin number wire color Terminal function symbol 1 DC voltage 4 Earth terminal 1 Red DC voltage Vm 2 No function 3 No function 4 Black Earth terminal GND 5 White Control voltage Vcc 6 Yellow Speed command Vsp 7 ...

Page 131: ...45KBTB Type of contact 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 30 36 45 model P770 4 6 Pressure switch 03 57 4 Service parts information TROUBLESHOOTING TROUBLESHOOTING ...

Page 132: ... value replace solenoid coil Check Point 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...

Page 133: ... 0 130 5 145 0 MPa 0 0 0 10 0 20 0 30 0 40 0 50 0 60 0 80 0 90 1 00 Output V 0 50 0 58 0 66 0 74 0 82 0 90 1 06 1 14 1 22 1 30 psi 174 0 203 0 232 0 261 0 290 0 319 0 343 0 377 0 406 0 435 0 MPa 1 20 1 40 1 60 1 80 2 00 2 20 2 40 2 60 2 80 3 00 Output V 1 46 1 62 1 78 1 94 2 10 2 26 2 42 2 58 2 74 2 90 psi 464 0 493 0 522 0 551 0 580 0 609 0 638 0 667 0 696 0 725 0 MPa 3 20 3 40 3 60 3 80 4 00 4 2...

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

Page 135: ... 5 0 20 73 0 34 0 0 15 83 0 43 5 0 12 21 0 55 10 0 9 50 0 68 15 0 7 46 0 84 20 0 5 90 1 01 25 0 4 71 1 21 30 0 3 78 1 42 35 0 3 06 1 64 40 0 2 50 1 88 45 0 2 05 2 11 50 0 1 69 2 35 55 0 1 40 2 58 60 0 1 17 2 81 65 0 0 99 3 02 70 0 0 83 3 22 75 0 0 70 3 41 80 0 0 60 3 58 5 2 Outdoor unit 03 61 5 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...

Page 136: ...0 79 12 0 71 20 0 62 55 0 86 25 0 49 84 1 03 30 0 40 01 1 23 35 0 32 35 1 43 40 0 26 34 1 65 45 0 21 58 1 88 50 0 17 79 2 11 55 0 14 75 2 34 60 0 12 30 2 57 65 0 10 32 2 79 70 0 8 70 3 00 75 0 7 36 3 19 80 0 6 27 3 37 85 0 5 36 3 54 90 0 4 60 3 69 95 0 3 96 3 83 100 0 3 43 3 96 105 0 2 98 4 07 110 0 2 60 4 17 115 0 2 27 4 26 120 0 2 00 4 33 5 2 Outdoor unit 03 62 5 Thermistor resistance values TRO...

Page 137: ... 3 68 55 0 1 42 3 85 60 0 1 19 4 00 65 0 1 00 4 13 70 0 0 84 4 25 75 0 0 71 4 35 80 0 0 61 4 43 Outdoor temperature thermistor Temperature C Resistance kΩ Voltage V 30 0 224 33 0 73 25 0 159 71 0 97 20 0 115 24 1 25 15 0 84 21 1 56 10 0 62 28 1 90 5 0 46 58 2 26 0 0 35 21 2 61 5 0 26 88 2 94 10 0 20 72 3 25 15 0 16 12 3 52 20 0 12 64 3 76 25 0 10 00 3 97 30 0 7 97 4 14 35 0 6 40 4 28 40 0 5 18 4 4...

Page 138: ...5 2 Outdoor unit 03 64 5 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...

Page 139: ...4 CONTROL AND FUNCTIONS 2020 07 01 SR_CH04_AB004EF_01 ...

Page 140: ...0 7 Various control 04 31 7 1 Auto restart 04 31 7 2 10 C HEAT operation 04 31 7 3 ECONOMY operation 04 31 7 4 POWERFUL operation 04 31 7 5 Fresh air control 04 32 7 6 Compressor preheating 04 32 7 7 External electrical heater control 04 33 7 8 Electronic expansion valve control 04 33 7 9 Drain pump control 04 34 7 10 Prevention to restart for 3 minutes 3 minutes st 04 36 7 11 4 way valve control ...

Page 141: ...8 8 High temperature and high pressure release control 04 42 CONTENTS continued ...

Page 142: ......

Page 143: ... set temperature the compressor will be stopped When the room temperature is within the range of 6 0 C to 1 0 C of the setting temperature the compressor frequency is controlled within the range shown in the table below However the maxi mum frequency is limited in the range shown in the figure below based on the indoor fan mode and the outdoor temperature Compressor frequency range Model name Mini...

Page 144: ... 36 C A zone 34 C 32 C B zone 30 C 21 C C zone 19 C D zone E zone F zone 10 C 0 C 12 C 2 C Outdoor temperature drops Outdoor temperature rises Unit rps 1 1 Cooling operation 04 2 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 145: ...zone 106 79 68 46 C zone 85 68 56 46 D zone 74 56 46 41 E zone 74 56 46 41 F zone 74 56 46 41 ABYG30KRTA A zone 98 64 49 40 B zone 98 64 49 40 C zone 77 54 44 36 D zone 54 40 34 30 E zone 54 40 34 30 F zone 54 40 34 30 ABYG36KRTA A zone 98 79 64 44 B zone 98 79 64 44 C zone 85 64 54 44 D zone 64 54 4436 E zone 64 54 4436 F zone 64 54 4436 ABYG45KRTA A zone 95 66 51 33 B zone 95 66 51 33 C zone 80 ...

Page 146: ...n to maximum performance If the room temperature is 1 0 C higher than a set temperature the compressor will be stopped When the room temperature is within the range of 1 0 C to 6 0 C of the setting temperature the compressor frequency is controlled within the range shown below Compressor frequency range Model name Minimum frequency Maximum frequency ABYG18KRTA 8 120 ABYG22KRTA ABYG24KRTA 10 130 AB...

Page 147: ...or temperature zone Operating frequency ABYG18KRTA X zone 41 J zone 41 Y zone 0 ABYG22KRTA X zone 42 J zone 42 Y zone 0 ABYG24KRTA X zone 46 J zone 46 Y zone 0 ABYG30KRTA X zone 40 J zone 40 Y zone 0 ABYG36KRTA X zone 44 J zone 44 Y zone 0 ABYG45KRTA X zone 33 J zone 33 Y zone 0 Compressor control based on room temperature Ts 0 5 C Ts 1 5 C Ts 0 5 C Ts 1 5 C X zone J zone Y zone Room temperature d...

Page 148: ...ime sec 1 2 3 4 5 60 240 280 360 400 Models AOYG22KBTB and AOYG24KBTB Compressor frequency soon after starting is controlled as below Frequency I Frequency II Frequency III Frequency IV Frequency V Frequency VI Time 1 Time 2 Time 3 Time 4 Time 5 Time 6 Frequency rps I II III IV V VI 35 52 64 71 89 97 Time sec 1 2 3 4 5 6 60 140 170 200 350 410 1 4 Compressor frequency at normal start up 04 6 1 Com...

Page 149: ...ation Frequency rps I II III IV V VI VII VIII 25 42 53 61 65 75 85 92 Time sec 1 2 3 4 5 6 7 8 225 305 605 665 725 785 855 1 000 NOTES Normal operation Cooling and dry mode Below 3 hours from the compressor stop and the compressor thermistor 15 C After defrost operation Other than when the compressor starts for the first time since the breaker turns on Special operation Other than the normal opera...

Page 150: ...Special operation Frequency rps I II III IV V VI VII VIII IX X 41 46 51 57 60 72 81 91 100 110 Time sec 1 2 3 4 5 6 7 8 9 10 120 185 245 305 605 665 725 785 845 1 000 NOTES Normal operation Cooling and dry mode Below 3 hours from the compressor stop and the compressor thermistor 15 C After defrost operation Other than when the compressor starts for the first time since the breaker turns on Special...

Page 151: ...door temperature zone Limitation of compressor frequency AOYG18KBTB A zone 30 rps B zone 30 rps C zone 22 rps D zone 16 rps E zone 1 rps F zone 25 rps AOYG22KBTB A zone 33 rps B zone 33 rps C zone 31 rps D zone 19 rps E zone 1 rps F zone 20 rps AOYG24KBTB A zone 31 rps B zone 31 rps C zone 29 rps D zone 20 rps E zone 1 rps F zone 29 rps 1 5 Compressor frequency limitation by outdoor temperature 04...

Page 152: ... rps C zone 17 rps D zone 10 rps E zone 1 rps F zone 1 rps AOYG22KBTB A zone 31 rps B zone 31 rps C zone 21 rps D zone 13 rps E zone 1 rps F zone 1 rps AOYG24KBTB A zone 31 rps B zone 31 rps C zone 24 rps D zone 20 rps E zone 20 rps F zone 1 rps 1 5 Compressor frequency limitation by outdoor temperature 04 10 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 153: ...on of compressor frequency AOYG30KBTB AOYG36KBTB A zone 55 rps B zone 52 rps C zone 47 rps D zone 39 rps E zone 33 rps F zone 25 rps G zone 18 rps H zone 20 rps I zone 20 rps J zone 21 rps K zone 24 rps AOYG45KBTB A zone 50 rps B zone 47 rps C zone 40 rps D zone 30 rps E zone 22 rps F zone 20 rps G zone 16 rps H zone 16 rps I zone 17 rps J zone 23 rps K zone 28 rps 1 5 Compressor frequency limitat...

Page 154: ...TB A zone 58 rps B zone 52 rps C zone 43 rps D zone 38 rps E zone 28 rps F zone 23 rps G zone 20 rps H zone 17 rps I zone 17 rps AOYG45KBTB A zone 46 rps B zone 42 rps C zone 35 rps D zone 32 rps E zone 23 rps F zone 20 rps G zone 17 rps H zone 13 rps I zone 16 rps 1 5 Compressor frequency limitation by outdoor temperature 04 12 1 Compressor frequency control CONTROL AND FUNCTIONS CONTROL AND FUNC...

Page 155: ...le zone indoor unit operation mode is selected as below Same operation mode is selected as outdoor unit If outdoor unit is operating in cooling and heating mode indoor unit will be operated by the same operation mode Selected by outdoor temperature If outdoor unit is operating in other than cooling and heating mode indoor unit will be op erated according to the outdoor temperature as below Outdoor...

Page 156: ...tion Middle zone Operation mode of outdoor unit Cooling Outdoor temp 25 C Operation mode before the monitor mode is cooling mode Monitor mode Room temp Ts 2 C No Yes No Yes No Yes No Yes No No Operation mode of outdoor unit Heating Yes Yes No System stops or operation command other than auto changeover operation Yes No Yes No Thermostat remains in off state for 6 minutes or longer Yes No 04 14 2 A...

Page 157: ...0 X zone 750 J zone 750 X zone 620 J zone 620 X zone 680 J zone 680 X zone 700 J zone 700 X zone 740 J zone 740 1 Fan mode only 2 Cooling mode only Fan operation Airflow can be switched in 5 steps such as AUTO QUIET LOW MED HIGH while indoor unit fan only runs When fan mode is set at AUTO it operates on MED fan speed Cooling operation Switch the airflow AUTO and indoor fan motor will run according...

Page 158: ...n control heating mode The maximum value of the indoor fan speed is set as shown below based on the detected tempera ture by the indoor heat exchanger sensor on heating mode Normal operation 42 C Indoor heat exchanger temperature rises HIGH or setting fan mode Cool air prevention S LOW Indoor heat exchanger temperature drops 39 C 37 C 30 C 37 C 34 C 32 C 24 C MED or setting fan mode LOW or setting...

Page 159: ...e return prevention control cooling and dry mode Switch the airflow AUTO at cooling mode and the indoor fan motor will run as shown below Compressor On Off Indoor fan setting airflow S LOW Off 10 30 60 180 60 180 60 10 30 sec Indoor fan speed 3 1 Indoor fan control 04 17 3 Fan control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 160: ...dry at low outdoor temp Y zone Y zone Z zone F zone G zone H zone S HIGH2 1 100 S HIGH1 1 050 1 100 HIGH 1 050 1 100 10 1 100 9 1 050 1 100 1 050 850 320 270 270 8 1 050 750 1 050 850 320 270 270 7 870 710 870 770 320 270 270 6 870 570 870 630 270 230 230 5 770 510 770 440 270 230 200 4 630 470 630 320 270 230 200 3 510 420 510 320 270 230 200 2 400 420 400 320 270 230 200 1 400 420 400 320 270 23...

Page 161: ...H2 1 100 S HIGH1 1 050 1 100 HIGH 1 050 1 100 10 1 100 9 1 050 1 100 1 050 850 440 320 270 8 1 050 800 1 050 850 440 320 270 7 900 680 900 630 440 320 270 6 860 570 860 440 320 270 230 5 690 510 690 440 270 230 200 4 550 470 550 320 270 230 200 3 440 420 440 320 270 230 200 2 400 420 400 320 270 230 200 1 400 420 400 320 270 230 200 NOTE After defrost control on the heating mode the fan speed is k...

Page 162: ...S HIGH2 1 100 S HIGH1 1 000 1 100 HIGH 1 000 1 100 10 1 100 9 940 940 940 770 320 320 270 8 940 940 940 630 320 320 270 7 770 700 770 470 270 270 190 6 630 550 630 270 220 220 190 5 470 470 470 270 220 220 190 4 470 440 470 270 220 220 190 3 320 440 320 270 220 220 190 2 320 440 320 270 220 220 190 1 320 440 320 270 220 220 190 NOTE After defrost control on the heating mode the fan speed is kept h...

Page 163: ...70 1 270 200 S HIGH 830 When the compressor frequency increases the outdoor fan speed also changes to the higher speed When the compressor frequency decreases the outdoor fan speed also changes to the lower speed NOTE After defrost control on the heating mode the fan speed is kept higher regardless of the compressor frequency Fan speed after defrost control 830 rpm 3 2 Outdoor fan control 04 21 3 ...

Page 164: ... 200 S HIGH 990 When the compressor frequency increases the outdoor fan speed also changes to the higher speed When the compressor frequency decreases the outdoor fan speed also changes to the lower speed NOTE After defrost control on the heating mode the fan speed is kept higher regardless of the compressor frequency Fan speed after defrost control 990 rpm 3 2 Outdoor fan control 04 22 3 Fan cont...

Page 165: ...ion setting will temporarily become 1 when the temperature of the airflow is low at the start of the Heating mode After beginning of AUTO HEAT mode operated and automatic defrosting operation the airflow will be horizontal 1 However the airflow direction cannot be adjusted at beginning AUTO operation mode 4 2 Swing operation To select vertical airflow swing operation When the swing signal is recei...

Page 166: ...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 167: ...r After that the setting temperature is not changed and the operation is stopped at the setting time Set temperature rises Ts Set temperature Stop of operation Ts 2 C Set 60 min 1 C In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decreases the setting temperature another 1 C every 30 minutes Upon lowering 4 C the setting temperature is not chan...

Page 168: ...imer The program timer allows the off timer and the on timer to be used in combination one time Operation mode Stop mode Stop mode Stop mode Operation mode Operation mode Set time Set time Set time Set time Operation will start from the timer setting either off timer and on timer whichever is closest to the clock current timer setting The order of operations is indicated by the allow in the remote...

Page 169: ...Stop of operation Ts 2 C Set 60 min 1 C In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decreases the setting temperature another 1 C every 30 minutes Upon lowering 4 C the setting temperature is not changed and the operation is stopped at the setting time Set Ts 2 C 1 C 3 C 4 C Ts Set temperature 30 min 30 min 30 min Stop of operation Set temp...

Page 170: ...ner will operate at a minimum of 18 C even if the SET BACK temperature is set to 17 C or lower Case of SET BACK timer on the Cooling operation Setting temperature 22 C SET BACK temperature 26 C SET BACK setting Operation temperature Operation temperature 26 C 22 C 26 C 22 C 24 C 1 ON OFF OFF ON 1 During the SET BACK function the setting temperature is changed Chenge the setting temperature 22 C 24...

Page 171: ... 7 C or Tn 25 C Ta 10 C Models AOYG30KBTB AOYG36KBTB and AOYG45KBTB Compressor integrating operation time Less than 35 min More than 35 min Condition Does not operate Tn Tn10 5 deg Tn 10 C Tn Tnb 2 deg Tn 10 C Tn 25 C Ta 20 C Tn Ta 7 C or Tn 25 C Ta 20 C Integrating defrost Constant monitoring Compressor integrating operation time 18 22 24 model More than 240 min For long continuous operation More...

Page 172: ... off the outdoor unit al low the heat exchanger to defrost and then stop Triggering condition When all of the following conditions are satisfied in heating operation Compressor operation integrating time 30 minutes or more Compressor continuous operation time 10 minutes or more Outdoor unit heat exchanger temperature 4 C or less Release condition The defrost operation is released when either one o...

Page 173: ...y Economy Defrost operation Operate as normal 7 3 ECONOMY operation The ECONOMY operation starts by pressing ECONOMY button on the remote controller The ECONOMY operation is almost the same operation as below settings Mode Cooling Dry Heating Target temperature Setting temperature 1 C Setting temperature 1 C 7 4 POWERFUL operation The POWERFUL operation starts by pressing POWERFUL button on the re...

Page 174: ...G24KBTB Triggering condition 30 minutes after compressor stopped Outdoor unit heat exchanger temperature Tn 2 C Off On Tn Tn 4 C When the jumper wire JM2 is disconnected 5 C Off On Tn Tn 7 C Models AOYG30KBTB AOYG36KBTB and AOYG45KBTB Triggering condition 1 Outdoor temperature 20 C When outdoor temperature reaches 26 C compressor preheating stops 30 minutes after compressor stopped Triggering cond...

Page 175: ...ronic expansion valve is calculated and controlled under the present operating condition based on the table below Models AOYG18KBTB AOYG22KBTB and AOYG24KBTB Operation mode Pulse range Cooling dry mode Between 52 and 480 pulses Heating mode Models AOYG30KBTB AOYG36KBTB and AOYG45KBTB Operation mode Pulse range Cooling dry mode Between 47 and 480 pulses Heating mode Between 39 and 480 pulses NOTE A...

Page 176: ...e compressor is stopped by Anti freezing control for the operation after re lease When the compressor is not in operation Triggering condition The thermostat is turned off The compressor is stopped The operation is switched to heating mode The float switch is turned off Operation details Count 180 minutes Start drain pump intermittent operaion On Off Drain pump 3 min 3 min 3 min Trigger point 0 mi...

Page 177: ...ease 3 minutes passed Operation after release The compressor stopps permanently The compressor is stopped by Anti freezing control Triggering condition During the compressor in operation the compressor is stopped by Anti freezing control Operation details The drain pump is kept on in 60 minutes after Anti freezing control released Release condition 60 minutes passed Operation after release Accordi...

Page 178: ...alve switching Heating mode Cooling mode 7 12 Human sensor for energy saving If no one enters the room for the set time the set temperature is automatically controlled When someone comes back into the room the human sensor detect this and automatically revert to the original settings Operation mode Operation details If there is no one in the room for a while Cooling Dry The setting temperature is ...

Page 179: ...ated capacity Forced thermostat off 50 75 100 NOTES During defrost operation peak cut operation becomes invalid Even during the peak cut operation the operations of current overload economy and low noise are effective and the outdoor unit operates by lowest current of them 7 13 Peak cut operation for 30 36 45 model 04 37 7 Various control CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 180: ... unit LED starts blinking Trigger condition 104 C Compressor frequency 18 22 24 model 20 rps 120 seconds 30 36 45 model 14 rps 120 seconds Release condition 101 C Compressor protection temperature 110 C 8 2 Anti freezing control cooling and dry mode The compressor frequency is decrease in cooling and dry mode when the indoor unit heat exchang er temperature sensor detects the temperature lower tha...

Page 181: ...0 5 A 10 0 A Ta 5 C 10 5 A 10 0 A Model AOYG22KBTB Operation mode Outdoor temp Ta Trigger condition Release condition Cooling 50 C Ta 7 0 A 6 5 A 46 C Ta 50 C 7 0 A 6 5 A 40 C Ta 46 C 9 5 A 9 0 A 12 C Ta 40 C 10 5 A 10 0 A 2 C Ta 12 C 10 5 A 10 0 A Ta 2 C 10 5 A 10 0 A Heating 17 C Ta 8 0 A 7 5 A 12 C Ta 17 C 9 0 A 8 5 A 5 C Ta 12 C 11 0 A 10 5 A Ta 5 C 11 0 A 10 5 A Model AOYG24KBTB Operation mod...

Page 182: ...re protection When satisfy the following conditions the protection works After the 90 seconds from the fan operation detect less than 300 rpm for 10 seconds IPM trip protection works Current overload protection works When detecting the above condtion recheck the condition after 6 minutes When count the twice the protection works Protection contents Reduce the static pressure 20 Pa When it does not...

Page 183: ...otection Trigger condition Pressure switch Off Open Higher than 4 2 MPa Compressor stop Release condition Pressure switch On Close Lower than 3 2 MPa 3 minutes after compressor stop Compressor restart 8 7 Low outdoor temperature protection When the outdoor temperature sensor detects lower than the trigger condition below the compres sor is stopped Operation mode Cooling Dry Heating Trigger conditi...

Page 184: ... Zone C 5 rps 60 sec Zone D The protection is released and the operation is returned to normal mode Zone E Heating mode Indoor unit heat exchanger temperature rises Indoor unit heat exchanger temperature drops Stable zone AB BC CD DE Zone A Zone B Zone C Zone D Zone E AB 61 C BC 55 C CD 53 C DE 50 C Zone Operation Zone A Compressor is stopped Zone B The compressor frequency is decreased 25 rps 120...

Page 185: ...ation 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 63 C BC 55 C CD 53 C DE 50 C Zone Operation Zone A Compressor is stopped Zone B The compressor frequency is decreased 15 rps 120 sec Zone C 2 rps 120 sec Zone D The protection is released and the...

Page 186: ...8 8 High temperature and high pressure release control 04 44 8 Various protections CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS ...

Page 187: ...5 FILED WORKING 2020 07 01 SR_CH05_AB004EF_01 ...

Page 188: ...CONTENTS 5 FILED WORKING 1 Function settings For indoor unit 05 1 1 1 Function settings by using remote controller 05 1 1 2 Function settings on outdoor unit 05 5 ...

Page 189: ... will not be changed if invalid numbers or setting values are selected Function setting list Function no Functions 1 11 Filter sign 2 20 Ceiling height 3 28 Horizontal louver direction switching for dew condensation prevention 4 30 31 Room temperature control for indoor unit sensor 5 35 36 Room temperature control for wired remote controller sensor 6 40 Auto restart 7 42 Room temperature sensor sw...

Page 190: ...ending on the installed environment correction of the room temperature sensor may be re quired Select the appropriate control setting according to the installed environment The temperature of the room temperature sensor is corrected as follows Corrected temp Temp of the room temp sensor Correction temp value Example of correction When the temperature of the room temp sensor is 26 C and the setting...

Page 191: ...o restart Enables or disables automatic restart after a power interruption Function number Setting value Setting description Factory setting 40 00 Enable 01 Disable NOTE Auto restart is an emergency function such as for power outage etc Do not attempt to use this function in normal operation Be sure to operate the unit by remote controller or exter nal device 7 Room temperature sensor switching On...

Page 192: ...on Factory setting 48 00 Both 01 Wired remote controller 11 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 When the outdoor unit is...

Page 193: ...or unit Perform appropriate function setting locally according to the installation environment NOTE Incorrect settings can cause a product malfunction CAUTION Before setting up the switch buttons discharge the static electricity from your body Never touch the terminals or the patterns on the parts that are mounted on the PCB Control PCB and switch buttons location Control PCB of the outdoor unit i...

Page 194: ...and L3 indicates low noise level 5 PEAK CUT MODE L4 L5 and L6 Orange Lights on during Peak cut mode when local setting is activated Lighting pattern of L4 L5 and L6 indicates peak cut level Switch button Function or operation method S134 MODE Switches between Local setting and Error code display S133 SELECT Switches between the individual Local settings and the Error code displays S132 ENTER Switc...

Page 195: ...h button S133 and adjust the LED lamps as shown below PEAK CUT MODE 1 Low MODE 2 Lower Blink Blink L4 L5 L6 6 Press the ENTER switch button S132 and fix it PEAK CUT MODE 1 Low MODE 2 Lower L4 L5 L6 7 To return to Operating status display Normal operation press the EXIT switch button S131 In case of missing how many times you pressed the SELECT and ENTER switch buttons 1 To return to Operation stat...

Page 196: ...33 and adjust the LED lamps as shown below 0 of rated input ratio 50 of rated input ratio 75 of rated input ratio 100 of rated input ratio Blink Blink Blink Blink Blink PEAK CUT L4 L5 L6 6 Press the ENTER switch button S132 and fix it 0 of rated input ratio 50 of rated input ratio 75 of rated input ratio 100 of rated input ratio PEAK CUT L4 L5 L6 7 To return to Operating status display Normal oper...

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