Fujitsu AUXG18KVLA Service Manual
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Fujitsu AUXG18KVLA Service Manual

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AIR CONDITIONER
Simultaneous multi
INDOOR
OUTDOOR
SERVICE MANUAL
AUXG18KVLA × 2
AUXG22KVLA × 2
AUXG24KVLA × 2
AUXG18KVLA × 3
AOYG36KRTA
ARXG18KLLAP × 2
ARXG18KLLAP × 3
AOYG45KRTA
AOYG54KRTA
ARXG22KMLA × 2
ARXG24KMLA × 2
SR_SM001EF_01
2019.10.10

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Summary of Contents for Fujitsu AUXG18KVLA

  • Page 1 AIR CONDITIONER Simultaneous multi SERVICE MANUAL INDOOR AUXG18KVLA × 2 ARXG18KLLAP × 2 ARXG22KMLA × 2 AUXG22KVLA × 2 ARXG18KLLAP × 3 ARXG24KMLA × 2 AUXG24KVLA × 2 AUXG18KVLA × 3 OUTDOOR AOYG36KRTA AOYG45KRTA AOYG54KRTA SR_SM001EF_01 2019.10.10...
  • Page 2 • Product specifications and design are subject to change without notice for future improvement. • For further details, 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. ®...
  • Page 3 CONTENTS 1. GENERAL INFORMATION 2. TECHNICAL DATA AND PARTS LIST...
  • Page 5 1. GENERAL INFORMATION 2019.10.10 SR_CH01_SM001EF_01...

  • Page 6: Table Of Contents

    CONTENTS 1. GENERAL INFORMATION 1. Model lineup ....................01-1 2. Specifications....................01-2 2-1. Compact cassette type ....................01-2 2-2. Slim duct type .........................01-3 2-3. Medium static pressure duct type ...................01-4 2-4. Outdoor unit........................01-5 3. Dimensions....................01-8 3-1. Compact cassette type ....................01-8 3-2. Slim duct type .......................01-10 3-3.

  • Page 7: Model Lineup

    1. Model lineup Indoor unit Twin Outdoor unit 18 kBtu/h × 2 ARXG18KLLAP AOYG36KRTA AUXG18KVLA Indoor unit Twin Outdoor unit 22 kBtu/h × 2 ARXG22KMLA AOYG45KRTA AUXG22KVLA Indoor unit Twin Triple Outdoor unit 24 kBtu/h × 2 18 kBtu/h × 3...

  • Page 8: Specifications

    2. Specifications 2-1. Compact cassette type Model name AUXG18KVLA AUXG22KVLA AUXG24KVLA Power supply 3N 400 V ~50 Hz Power supply intake Outdoor unit Available voltage range 342—457 V HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Q'ty Turbo fan × 1...

  • Page 9: Slim Duct Type

    2-2. Slim duct type Model name ARXG18KLLAP Power supply 3N 400 V ~50 Hz Power supply intake Outdoor unit Available voltage range 342—457 V HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Q'ty Sirocco fan × 3 Motor output Recommended static pressure 0 to 90 HIGH...

  • Page 10: Medium Static Pressure Duct Type

    2-3. Medium static pressure duct type Model name ARXG22KMLA ARXG24KMLA Power supply 3N 400 V ~50 Hz Power supply intake Outdoor unit Available voltage range 342—457 V HIGH 1,100 Cooling QUIET Airflow rate HIGH 1,100 Heating QUIET Type × Q'ty Sirocco fan ×...

  • Page 11: Outdoor Unit

    3N 400 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 342—457 V AUXG24KVLA × 2 AUXG18KVLA × 2 AUXG22KVLA × 2 ARXG24KMLA × 2 Indoor unit combination ARXG18KLLAP × 2 ARXG22KMLA × 2 AUXG18KVLA × 3 ARXG18KLLAP ×...
  • Page 12 Type Inverter heat pump Model name AOYG36KRTA AOYG45KRTA AOYG54KRTA NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 27 °CDB/19 °CWB, and outdoor temperature of 35 °CDB/24 °CWB. – Heating: Indoor temperature of 20 °CDB/15 °CWB, and outdoor temperature of 7 °CDB/6 °CWB. –...
  • Page 13 Specifications for ErP Lot10 Model name AOYG36KRTA Cooling Energy efficiency class Heating (Average) Cooling 9.5 (35°C) Pdesign Heating (Average) 8.7 (-10°C) SEER Cooling kWh/kWh SCOP Heating (Average) Annual energy consump- kWh/a tion QHE (Average) 3,044 Cooling Sound power level HIGH dB (A) Heating - (01-7) -...

  • Page 14: Dimensions

    3. Dimensions 3-1. Compact cassette type ¢ Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA Unit: mm Grid type grille Hanging bolt position IR receiver Drain hose View A Ceiling Control Box View B View C a: Ceiling openings Cassette grille (Option [Grid type])
  • Page 15 ¢ Installation space requirement Unit: mm Strong and durable ceiling or more 1,000 1,000 or more or more 1,800 or more Obstruction Floor Maximum height from floor to ceiling (Unit: mm) Standard 2,700 High ceiling 3,000 3-way direction setting: Unit: mm 100 or more* NOTES: •...

  • Page 16: Slim Duct Type

    3-2. Slim duct type ¢ Model: ARXG18KLLAP Unit: mm Rear view View A Drain port 100 × 8 = 800 Top view Side view Front view Bottom view - (01-10) - 3-2. Slim duct type 3. Dimensions...
  • Page 17 ¢ Installation space requirement Provide sufficient installation space for product safety. In ceiling-concealed installations: Unit: mm 300 or more Strong and durable ceiling 20 or more Indoor unit Left Right side side 20 or more Service access Ceiling or more or more Floor - (01-11) -...

  • Page 18: Duct Type

    3-3. Duct type ¢ Models: ARXG22KMLA and ARXG24KMLA Unit: mm Front view Side view (L) Side view (R) Top view Rear view • When using a square duct Unit: mm P176 x 6 = 1,044 Ø 3.2 - (01-12) - 3-3.
  • Page 19 • Bottom air intake hole Unit: mm 1,015 ¢ Installation space requirement Unit: mm 2,500 or more (When no ceiling) 300 or more 150 or more Floor - (01-13) - 3-3. Duct type 3. Dimensions...

  • Page 20: Outdoor Unit

    3-4. Outdoor unit ¢ Model: AOYG36KRTA Unit: mm 35.7 Top view 3 Way valve (Liquid) 3 Way valve (Gas) 25 67 Ф28: Cable port Pipe port Ф28: Cable port Ф28: Cable port Ф28: Cable port Ф28: Cable port Ф28: Cable port Pipe port Pipe port Front view...
  • Page 21 ¢ Models: AOYG45KRTA and AOYG54KRTA Unit: mm 35.7 Top view 3 Way valve (Liquid) 3 Way valve (Gas) 129.1 Pipe port Ф28 Ф28 85.3 Cable port Pipe port Ф28: Cable port Cable port Pipe port Pipe port Pipe port Front view Side view Rear view 62.6...
  • Page 22 2. TECHNICAL DATA AND PARTS LIST 2019.10.10 SR_CH02_SM001EF_01...
  • Page 23 1. Precautions....................02-1 2. Cassette grille (optional part) parts list.............02-2 2-1. Model: UTG-UFYF-W .....................02-2 3. Indoor unit parts list..................02-6 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA .........02-6 3-2. Model: ARXG18KLLAP ....................02-11 3-3. Models: ARXG22KMLA and ARXG24KMLA ..............02-14 4. Outdoor unit parts list................02-18 4-1.

  • Page 25: Precautions

    • Service parts information and design are subject to change without notice for product improve- ment. • For the latest information of the service parts, refer to our Service Portal. https://fujitsu-general.force.com/portal/ • Precise figure of the service parts listed in this manual may differ from the actual service parts. - (02-1) -...

  • Page 26: Cassette Grille (Optional Part) Parts List

    2. Cassette grille (optional part) parts list 2-1. Model: UTG-UFYF-W ¢ Panels Description Parts No. Decoration Panel 9382821005 without Insulations Display panel assy 9383100031 9375530013 Panel Cover without Insulations 9711310002 Indicator PCB 9375549015 Connector Cover - (02-2) - 2-1. Model: UTG-UFYF-W 2.
  • Page 27 ¢ Intake grille Description Parts No. 9382863005 Intake grille 9375533014 Long Life Filter 9375546014 Hook bracket 9375532031 Grille hook - (02-3) - 2-1. Model: UTG-UFYF-W 2. Cassette grille (optional part) parts list...
  • Page 28 ¢ Louvers and motors Description Parts No. 9900139070 Step Motor (White connector) 9900139087 Step Motor (Red connector) 9375727048 Flap assy A 9377759047 Flap assy B - (02-4) - 2-1. Model: UTG-UFYF-W 2. Cassette grille (optional part) parts list...
  • Page 29 - (02-5) - 2-1. Model: UTG-UFYF-W 2. Cassette grille (optional part) parts list...

  • Page 30: Indoor Unit Parts List

    3. Indoor unit parts list 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA Ref. Description Part number Drain hose 9379665001 Hose band 9379757010 Pipe Thermistor 9900942038 Room Thermistor 9900826000 - (02-6) - 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA 3. Indoor unit parts list...
  • Page 31 9710995705 Main PCB (18) 9710995767 Main PCB (22) 9710995613 Main PCB (24) 9710995866 Holder 0600063023 Communication PCB 9710019005 Power supply PCB 9710661006 Terminal 9900568009 Terminal 9900896003 - (02-7) - 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA 3. Indoor unit parts list...
  • Page 32 Drain pan sub assy (18) 9377765024 Drain pan sub assy (22, 24) 9377765017 Drain port sub assy 9375718015 Float witch sub assy 9375721046 Drain pump sub assy 9375717025 Wire holder - (02-8) - 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA 3. Indoor unit parts list...
  • Page 33 9377914125 Evaporator total assy (22, 24) 9377914149 Insulation box sub assy (07-18) 9377764065 Insulation box sub assy (22, 24) 9377764058 Separate wall Evaporator holder 2 row - (02-9) - 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA 3. Indoor unit parts list...
  • Page 34 Cabinet A sub assy Fan motor 9602436019 2 stage turbo fan assy 9375480011 Shaft cap 9377807014 Cabinet B sub assy Washer cover 9377811011 Turbo fan washer - (02-10) - 3-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA 3. Indoor unit parts list...

  • Page 35: Model: Arxg18Kllap

    3-2. Model: ARXG18KLLAP Description Parts number Side Panel R Sub Assy 9379906012 Side Panel L Sub Assy 9379907019 Pipe Panel Sub Assy 9379900003 Panel (Window) Sub Assy 9379915007 Outlet Frame Assy 9380042013 Front Panel (3 Fan) 9380595007 Valve Cover Sub Assy 9379576017 Fan Guard (3 Fan) 9380590002...
  • Page 36 Description Parts number Top Panel Sub Assy 9379908047 Sirroco Fan Assy 9379570022 Sirroco Fan Assy 9379570039 Shaft assy 9381052004 Joint Assy 9378038011 Rubber (Vibration Proof) 9379644006 Casing B 9379572019 Casing U 9379571012 Fan Motor Assy 9379047142 Hose Sub Assy 9378450097 Drain Pump Sub Assy 9379914062 Float Switch Sub Assy...
  • Page 37 Description Parts number Power Supply PCB 9710661006 Main PCB 9710624131 2 way Remote PCB 9710019005 Terminal 3P 9900568009 Terminal 3P (Wired Remote) 9900896003 Room Thermistor 9900653019 Pipe Thermistor 9900942045 - (02-13) - 3-2. Model: ARXG18KLLAP 3. Indoor unit parts list...

  • Page 38: Models: Arxg22Kmla And Arxg24Kmla

    3-3. Models: ARXG22KMLA and ARXG24KMLA Hook metal Ref. Description Part number Room thermistor 9900826048 Pipe thermistor 9900942045 - (02-14) - 3-3. Models: ARXG22KMLA and ARXG24KMLA 3. Indoor unit parts list...
  • Page 39 Ref. Description Part number Main PCB (22) 9710624124 Main PCB (24) 9710624223 Holder 0600063023 Communication PCB 9710019005 Power supply PCB 9710661013 Terminal 3P 9306489045 Terminal 5P 9900896003 Reactor assy 9707457049 - (02-15) - 3-3. Models: ARXG22KMLA and ARXG24KMLA 3. Indoor unit parts list...
  • Page 40 Main panel sub assy Ref. Description Part number Bracket pipe sub assy Drain pan sub assy 9374513017 Evaporator Total Assy 9374517978 - (02-16) - 3-3. Models: ARXG22KMLA and ARXG24KMLA 3. Indoor unit parts list...
  • Page 41 Intake cover sub assy Description Ref. Part number Casing A 9374233021 Casing B 9374234028 Sirocco fan assy 9356531060 Fan motor assy 9380718031 Intake frame assy Rubber 9385102002 Motor bracket - (02-17) - 3-3. Models: ARXG22KMLA and ARXG24KMLA 3. Indoor unit parts list...

  • Page 42: Outdoor Unit Parts List

    4. Outdoor unit parts list 4-1. Model: AOYG36KRTA ¢ Exterior parts and chassis - (02-18) - 4-1. Model: AOYG36KRTA 4. Outdoor unit parts list...
  • Page 43 Item no. Part no. Part name Service part 9383880001 Top panel assy ♦ 9383779008 Protective net ♦ 9375361013 Net rubber ♦ 9900984038 Thermistor (Heat exchanger) ♦ 9900727154 Thermistor assy ♦ 9383607004 Thermo holder ♦ 9383874000 Right panel sub assy ♦ 9383879005 Rear pipe cover ♦...
  • Page 44 ¢ Compressor - (02-20) - 4-1. Model: AOYG36KRTA 4. Outdoor unit parts list...
  • Page 45 Item no. Part no. Part name Service part 9383858000 Sound insulation unit ♦ 9900565091 Thermistor (Outdoor temp.) ♦ 9900186029 Pressure switch ♦ 9374425631 4-way valve assy ♦ 9970194016 Solenoid ♦ 9970158018 Sensor ♦ 9375250140 Accumulator assy ♦ 9970209000 Expansion valve coil ♦...

  • Page 46: Models: Aoyg45Krta And Aoyg54Krta

    4-2. Models: AOYG45KRTA and AOYG54KRTA ¢ Exterior parts and chassis - (02-22) - 4-2. Models: AOYG45KRTA and AOYG54KRTA 4. Outdoor unit parts list...
  • Page 47 Item no. Part no. Part name Service part 9383880001 Top panel assy ♦ 9381013005 Protective net ♦ 9375361013 Net rubber ♦ 9900984038 Thermistor (Heat exchanger) ♦ 9900727154 Thermistor assy ♦ 9383607004 Thermo holder ♦ 9383874017 Right panel sub assy ♦ 9383879005 Rear pipe cover ♦...
  • Page 48 ¢ Compressor - (02-24) - 4-2. Models: AOYG45KRTA and AOYG54KRTA 4. Outdoor unit parts list...
  • Page 49 Item no. Part no. Part name Service part 9383858017 Sound insulation unit ♦ 9900565091 Thermistor (Outdoor temp.) ♦ 9900186029 Pressure switch ♦ 9374425624 4-way valve assy ♦ 9970194016 Solenoid ♦ 9970158018 Sensor ♦ 9375250133 Accumulator assy ♦ 9970209000 Expansion valve coil ♦...

  • Page 50: Accessories

    5. Accessories 5-1. Indoor unit ¢ Compact cassette type  Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Drain hose insulation Operating manual Hose band (CD-ROM) Coupler heat insulation Installation manual (large) Coupler heat insulation...
  • Page 51 ¢ Slim duct type  Model: ARXG18KLLAP Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Filter (large) Operating manual Drain hose (CD-ROM) Installation manual Hose band Installation template Drain hose insulation B Insulation Washer (for electrical wiring) Coupler heat insulation Cable tie (large) (large) Coupler heat insulation...

  • Page 52: Outdoor Unit

    ¢ Duct type  Models: ARXG22KMLA and ARXG24KMLA Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Cable tie (Small) Installation manual Cable tie Coupler heat insulation CD-ROM (Large) Coupler heat insulation Hanger (Small) M10 nut A Drain hose insulation (with flange) M10 nut B Cable tie (Large)

  • Page 53: Optional Parts

    6. Optional parts 6-1. Branch pipes ¢ Model: UTP-SX236A Unit: mm Port diameters Liquid pipe Q’ty Gas pipe Q’ty Ø12.70 Ø6.35 Ø9.52 Ø15.88 Ø6.35 Ø12.70 Ø12.70 Ø19.05 Dimensions Liquid pipe Gas pipe Heat insulation cover Liquid pipe Q’ty Gas pipe Q’ty - (02-29) - 6-1.
  • Page 54 ¢ Model: UTP-SX354A Unit: mm Port diameters Liquid pipe Q’ty Gas pipe Q’ty Ø15.88 Ø9.52 Ø12.70 Ø19.05 Ø6.35 Ø6.35 Ø6.35 Ø12.70 Ø12.70 Ø12.70 Dimensions Liquid pipe Gas pipe Heat insulation cover Liquid pipe Q’ty Gas pipe Q’ty Others Cable tie Q’ty - (02-30) - 6-1.

  • Page 55: Controllers

    6-2. Controllers ¢ Lineup Type Indoor unit type Wired remote controller Simple remote controller UTY-RNNYM UTY-RVNYM UTY-RSNYM Compact cassette ◌ ◌ ◌ Slim duct ◌ ◌ ◌ Duct ◌ ◌ ◌ Type IR receiver kit with Wireless remote Indoor unit type Wireless remote controller controller UTY-LNTY...

  • Page 56: Cassette Grille

    Exterior Part name Model name Summary Room temperature can be controlled by detecting the temperature Wired remote accurately with built-in thermo sensor. UTY-RNNYM controller Wire type: Polar 3-wire Compact remote controller concentrates on the basic functions such as Start/Stop, fan control, Simple remote temperature setting, and operation UTY-RSNYM...

  • Page 57: Others

    6-4. Others ¢ Lineup Indoor unit Type Model Outdoor unit Compact Slim duct Duct cassette Air outlet shutter plate UTR-YDZB ◌ — — — Insulation kit for high UTZ-KXGC ◌ — — — humidity Fresh air intake kit UTZ-VXAA ◌ —...
  • Page 58 Exterior Part name Model name Summary Optional drain lift up mechanism Drain pump unit UTZ-PX1NBA allows more flexible installation. Use to connect with various peripheral External devices and air conditioner PCB. UTY-XWZXZG connect kit For control output port. Air outlet shutter Installed at the air outlet when 3- UTR-YDZC plate...
  • Page 59 Exterior Part name Model name Summary Air conditioner switching can be External switch UTY-TERX controlled by connecting other external controller sensor switches. NOTE: Combined use of following optional parts and Wireless LAN adapter (UTY-TFSXZ1) is not allowed. • Modbus converter •...

  • Page 60: Refrigerant System Diagrams

    7. Refrigerant system diagrams 7-1. Models: AOYG36KRTA, AOYG45KRTA, and AOYG54KRTA Heat exchanger 3-Way 3-Way ( INDOOR ) valve valve Pressure switch Pressure sensor 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat Exchanger Out temperature)

  • Page 61: Pc Board Diagrams

    8. PC board diagrams 8-1. Models: AUXG18KVLA, AUXG22KVLA, and AUXG24KVLA CONTROL UNIT 09 model: EZ-0181RHSE 18 model: EZ-0181THSE 12 model: EZ-0181SHSE 22 model: EZ-01810HSE WIRED REMOTE CONTROLLER Thermistor Characteristics. 14 model: EZ-0181CHSE 24 model: EZ-01821HSE Temperature ( OPTION ) EMI FILTER...

  • Page 62: Model: Arxg18Kllap

    8-2. Model: ARXG18KLLAP CONTROL UNIT 09 model: EZ-0181YHSE 14 model: EZ-01814HSE 12 model: EZ-01820HSE 18 model: EZ-01813HSE CN8 Thermistor Characteristics. Temperature DC5V-1 ( 20 ( 30 Thermistor CN8-1 BLACK THERMISTOR ( ROOM TEMP. ) F200 B02B-XASK-1-A 33.62 k 12.54 k 8.04 k CN8-2 BLACK...

  • Page 63: Models: Arxg22Kmla And Arxg24Kmla

    8-3. Models: ARXG22KMLA and ARXG24KMLA CONTROL UNIT 22 model: EZ-01811HSE 24 model: EZ-0182EHSE CN8 Thermistor Characteristics. Temperature ( 20 ( 30 Thermistor B02B-XASK-1-A 33.62 k 12.54 k 8.04 k WHITE Thermistor ( Room temp. ) DC5V-1 1.15 V 2.22 V 2.77 V CN8-1 BLACK...

  • Page 64: Models: Aoyg36Krta, Aoyg45Krta, And Aoyg54Krta

    8-4. Models: AOYG36KRTA, AOYG45KRTA, and AOYG54KRTA INVERTER ASSEMBLY 36 model: EZ-0190HUE 45 model: EZ-0191HUE 54 model: EZ-0191HUE DC340V UL1015 AWG20 GREEN UL1430 AWG22 DC FAN MOTOR 1 DC15V-2 TERMINAL EMI FILTER UL1430 AWG22 EMI FILTER F102 BLACK BLACK GRFC-8 P650 GRFC-8 UL1430 AWG22 WHITE...

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