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Fujitsu AIRSTAGE ARXG18KSLAP Service Manual
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Fujitsu AIRSTAGE ARXG18KSLAP Service Manual

Fujitsu AIRSTAGE ARXG18KSLAP Service Manual

3-unit multi-split type
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AIR CONDITIONER
3-unit multi-split type
INDOOR
ASEH07–14KMCG
ASEH07–14KMCG-
B
ABEG18KRTA
AGEG09–14KVCA
SERVICE MANUAL
AUXG07–18KVLA
ARXG07–14KSLAP
ASEG07–14KETF
ASEH07–14KGTG
ASEG07–14KETF-B
OUTDOOR
ARXG07–14KLLAP
ARXG18KSLAP
ARXG18KLLAP
ASEH05–12KNCA
AOEG18KBCA3
AOEG24KBCA3
ARXH12–18KMTAP
ASEG18KMTE
SR_MU003ES_19
2024.10.15

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Summary of Contents for Fujitsu AIRSTAGE ARXG18KSLAP

  • Page 1 AIR CONDITIONER 3-unit multi-split type SERVICE MANUAL INDOOR AUXG07–18KVLA ARXG07–14KSLAP ARXG07–14KLLAP ARXH12–18KMTAP ARXG18KSLAP ARXG18KLLAP ASEH07–14KMCG ASEG07–14KETF ASEH07–14KGTG ASEH05–12KNCA ASEG18KMTE ASEH07–14KMCG- ASEG07–14KETF-B OUTDOOR ABEG18KRTA AGEG09–14KVCA AOEG18KBCA3 AOEG24KBCA3 SR_MU003ES_19 2024.10.15...
  • Page 2 • 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. “AIRSTAGE Mobile” is a trademark of FUJITSU GENERAL LIMITED. Android and Google Play are trademarks of Google LLC.
  • Page 3 CONTENTS 1. GENERAL INFORMATION 2. TECHNICAL DATA AND PARTS LIST 3. TROUBLESHOOTING 4. CONTROL AND FUNCTIONS 5. FIELD WORKING...
  • Page 5 1. GENERAL INFORMATION 2024.09.30 SR_CH01_MU003ES_11...
  • Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-15 2. Dimensions....................01-17 2-1. Compact cassette type ....................01-17 2-2. Mini duct type .......................01-19 2-3. Slim duct type .......................01-22 2-4. Medium static pressure duct type .................01-25 2-5. Wall mounted type......................01-28 2-6.
  • Page 7 1. Specifications 1-1. Indoor unit ¢ Compact cassette type Model name AUXG07KVLA AUXG09KVLA AUXG12KVLA AUXG14KVLA Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.15 0.19 0.22 HIGH Cooling QUIET Airflow rate HIGH Heating...
  • Page 8 Model name AUXG18KVLA Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.30 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Turbo fan × 1 Motor output HIGH Cooling QUIET...
  • Page 9 ¢ Mini duct type Model name ARXG07KSLAP ARXG09KSLAP ARXG12KSLAP ARXG14KSLAP Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class HIGH Input power QUIET Running current 0.29 0.33 0.38 0.58 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET...
  • Page 10 Model name ARXG18KSLAP Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class HIGH Input power QUIET Running current 0.49 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Sirocco fan × 3 Motor output Recommended static pressure 0 to 50...
  • Page 11 ¢ Slim duct type Model name ARXG07KLLAP ARXG09KLLAP ARXG12KLLAP ARXG14KLLAP Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.33 0.30 0.35 0.51 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type ×...
  • Page 12 Model name ARXG18KLLAP Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.44 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Sirocco fan × 3 Motor output Recommended static pressure 0 to 90 HIGH...
  • Page 13 ¢ Medium static pressure duct type Model name ARXH12KMTAP ARXH14KMTAP ARXH18KMTAP Power supply 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.34 0.49 0.52 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type ×...
  • Page 14 ¢ Wall mounted type ASEH07KMCG ASEH09KMCG ASEH12KMCG ASEH14KMCG Model name ASEH07KMCG-B ASEH09KMCG-B ASEH12KMCG-B ASEH14KMCG-B Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.20 0.24 0.30 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET...
  • Page 15 ASEG07KETF ASEG09KETF ASEG12KETF ASEG14KETF Model name ASEG07KETF-B ASEG09KETF-B ASEG12KETF-B ASEG14KETF-B Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.20 0.24 0.24 0.30 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type ×...
  • Page 16 Model name ASEH07KGTG ASEH09KGTG ASEH12KGTG ASEH14KGTG Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.20 0.24 0.29 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Crossflow fan × 1 Motor output HIGH Cooling...
  • Page 17 Model name ASEH05KNCA ASEH07KNCA ASEH09KNCA ASEH12KNCA Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.11 0.12 0.19 0.20 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Crossflow fan ×...
  • Page 18 Model name ASEG18KMTE Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power 37.5 Running current 0.35 HIGH Cooling QUIET Airflow rate HIGH 1,020 Heating QUIET Type × Qty Crossflow fan × 1 Motor output HIGH Cooling...
  • Page 19 ¢ Ceiling type Model name ABEG18KRTA Power supply 1Ø 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.21 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Sirocco fan × 2 Motor output HIGH Cooling...
  • Page 20 ¢ Floor type Model name AGEG09KVCA AGEG12KVCA AGEG14KVCA Power supply 230 V~ 50 Hz Available voltage range 198—264 V Capacity kW class Input power Running current 0.15 0.18 0.20 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Crossflow fan ×...
  • Page 21 1-2. Outdoor unit Type Inverter heat pump Model name AOEG18KBCA3 AOEG24KBCA3 Power source 230 V 50 Hz Available voltage range 198—264V Wall mounted Wall mounted Standard combination of indoor unit ×3 ×2 Rated Btu/h 18,400 23,200 Cooling 1.8—7 1.8—8.5 Min.—Max. Btu/h 6,100—23,800 6,100—29,000...
  • Page 22 Specifications for ErP Lot10 Model name AOEG18KBCA3 AOEG24KBCA3 Cooling Energy efficiency class Heating (Average) Cooling 5.4 (35 °C) 6.8 (35 °C) Pdesign Heating (Average) 5.0 (-10 °C) 6.0 (-10 °C) SEER Cooling 8.60 8.50 kWh/kWh SCOP Heating (Average) 4.70 4.60 Annual energy consumption kWh/a QHE (Average)
  • Page 23 2. Dimensions 2-1. Compact cassette type ¢ Models: AUXG07–18KVLA Unit: mm Grid type grille Hanging bolt position IR receiver Drain hose View A Ceiling Control Box View B View C - (01-17) - 2-1. Compact cassette type 2. Dimensions...
  • Page 24  Installation space requirement Provide enough clearance for product safety. 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) 07 and 09 models 12 or larger models Standard 2,700...
  • Page 25 2-2. Mini duct type ¢ Models: ARXG07–14KSLAP Unit: mm Rear view Drain port P 100 × 6 = 600 Side view (L) Top view Side view (R) Front view Bottom view - (01-19) - 2-2. Mini duct type 2. Dimensions...
  • Page 26 ¢ Model: ARXG18KSLAP Unit: mm Rear view Drain port P 100 × 8 = 800 Side view (L) Top view Side view (R) Front view Bottom view - (01-20) - 2-2. Mini duct type 2. Dimensions...
  • Page 27  Installation space requirement Provide sufficient installation space for product safety. Unit: mm Strong and durable ceiling Indoor unit Left Right side side or more* or more *: 400 or more when drain from drain pipe • When intaking air from back: •...
  • Page 28 2-3. Slim duct type ¢ Models: ARXG07–14KLLAP Unit: mm Rear view (Drain hose) Drain port 100 x 6 = 600 Side view (R) Side view (L) Top view Front view Bottom view - (01-22) - 2-3. Slim duct type 2. Dimensions...
  • Page 29 ¢ Model: ARXG18KLLAP Unit: mm Rear view (Drain hose) Drain port 100 x 8 = 800 Side view (L) Top view Side view (R) Front view Bottom view - (01-23) - 2-3. Slim duct type 2. Dimensions...
  • Page 30  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 ...
  • Page 31 2-4. Medium static pressure duct type ¢ Models: ARXH12–18KMTAP Unit: mm Rear view P100 × 5 = 500 Hole: × Φ4 PCD*160 Φ125 Φ4.5 P100 × 5 = 500 *: PCD (Pitch Circle Diameter) Side view (L) Top view Side view (R) Front view - (01-25) - 2-4.
  • Page 32  Installation space requirement Provide enough clearance for product safety. NOTE: The detailed component shape depends on the model. Unit: mm 20 or more 300 or more 20 or more* Ceiling 2,500 or more (When no ceiling) Floor *: According to the distance between the ceiling and the unit, the construction plan of the mainte- nance access differs.
  • Page 33 Unit: mm • Distance between the ceiling and the unit is from 20 to 300: Choose one of these methods to set up the maintenance access. Pattern A Maintenance access Control box 100 to 200 Pattern B 1,300 or more Control box Bottom view - (01-27) -...
  • Page 34 2-5. Wall mounted type ¢ Models: ASEH07–14KMCG and ASEH07–14KMCG-B Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-28) - 2-5. Wall mounted type 2. Dimensions...
  • Page 35  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more 70 or more Wall hook bracket 107 or more 183 or more Outline of the indoor unit 1,500 or more A: Install so that the flare connection part is outdoors. - (01-29) - 2-5.
  • Page 36 ¢ Models: ASEG07–14KETF and ASEG07–14KETF-B Unit: mm (950) Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-30) - 2-5. Wall mounted type 2. Dimensions...
  • Page 37  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more 40 or more Wall hook bracket Outline of the indoor unit 166 or more 211 or more 1,500 or more The flare connection part should be installed outdoors.
  • Page 38 ¢ ASEH07–14KGTG Unit: mm (834) Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-32) - 2-5. Wall mounted type 2. Dimensions...
  • Page 39  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more 70 or more Wall hook bracket 107 or more 183 or more Outline of the indoor unit 1,500 or more A: Install so that the flare connection part is outdoors. - (01-33) - 2-5.
  • Page 40 ¢ Models: ASEH05–12KNCA Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-34) - 2-5. Wall mounted type 2. Dimensions...
  • Page 41  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 30 or more 40 or more Wall hook bracket Outline of the indoor unit 107 or more 163 or more 1,500 or more - (01-35) - 2-5. Wall mounted type 2.
  • Page 42 ¢ Model: ASEG18KMTE Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-36) - 2-5. Wall mounted type 2. Dimensions...
  • Page 43  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more Wall hook bracket 70 or more 117 or more Outline of the indoor unit 160 or more 1,500 or more A: Install so that the flare connection part is outdoors. - (01-37) - 2-5.
  • Page 44 ¢ Pipe exit length from the rear (for KMCG, KMCG-B, KGTG, and KNCA) Design the system considering the length of the pipes or hose exiting from the rear of the indoor unit. NOTE: Detailed shapes of the indoor unit and the tip of each pipe or hose may vary depending on the model.
  • Page 45 2-6. Ceiling type ¢ Model: ABEG18KRTA Unit: mm 1,080 49 84 125 103 Side view Top view ø100-mm hole Rear view Suspension bolt pitch Dimensions Indoor unit (Top view) (Space required for installation) The length of the bolt here is 30 mm. Indoor unit - (01-39) - 2-6.
  • Page 46 ¢ Installation space requirement Unit: mm Ceiling Indoor unit 30 or more Ceiling 200 or more 0 or more Obstruction Floor Required ceiling height varies according to the ceiling mode setting of function setting No. 20. Ceiling height (mm) Ceiling mode Standard High ceiling 18 model...
  • Page 47 2-7. Floor type ¢ Models: AGEG09–14KVCA Unit: mm Side view Front view - (01-41) - 2-7. Floor type 2. Dimensions...
  • Page 48  Installation space Unit: mm 100 or more 80 or more 80 or more 50 or more 150 or below from the floor PROHIBITED Grating WARNING • The appliance shall be installed, operated and stored in a room with a floor area larger than X Minimum room area Amount of refrigerant charge M (kg)
  • Page 49 2-8. Outdoor unit ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - (01-43) - 2-8. Outdoor unit 2.
  • Page 50 - (01-44) - 2-8. Outdoor unit 2. Dimensions...
  • Page 51 2. TECHNICAL DATA AND PARTS LIST 2024.09.30 SR_CH02_MU003ES_16...
  • Page 52 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Cassette Grille (option) parts list ...............02-2 2-1. Model: UTG-UFYF-W .....................02-2 3. Indoor unit parts list..................02-4 3-1. Compact cassette type ....................02-4 3-2. Mini duct type .........................02-9 3-3. Slim duct type .......................02-16 3-4.
  • Page 53 CONTENTS (continued) 9-6. Models: ASEH07–14KMCG and ASEH07–14KMCG-B..........02-95 9-7. Models: ASEG07–14KETF and ASEG07–14KETF-B ..........02-96 9-8. Models: ASEH07–14KGTG ..................02-97 9-9. Models: ASEH05–12KNCA ..................02-98 9-10. Model: ABEG18KRTA ....................02-99 9-11. Models: AGEG09–14KVCA..................02-100 9-12. Models: AOEG18KBCA3 and AOEG24KBCA3 ............02-101...
  • Page 55 • 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 56 2. Cassette Grille (option) parts list 2-1. Model: UTG-UFYF-W ¢ Overall - (02-2) - 2-1. Model: UTG-UFYF-W 2. Cassette Grille (option) parts list...
  • Page 57 Item no. Part no. Part name 9375745011 Motor holder assy A 9377760043 Flap total assy Joint B Joint shaft 9711310002 Indicator PCB 9375746018 Motor holder assy B 9378597013 Hook wire 9383100031 Indicator panel assy 9382862008 Intake grille assy 9375533014 Long-life filter Decoration panel —...
  • Page 58 3. Indoor unit parts list 3-1. Compact cassette type ¢ Models: AUXG07–18KVLA Item no. Part no. Part name 9379665001 Drain hose Hose band 9900349028 Pipe thermistor 9900826000 Room thermistor N/A: Not available - (02-4) - 3-1. Compact cassette type 3. Indoor unit parts list...
  • Page 59 Item no. Part no. Part name 9710995965 Main PCB (For 07 model) 9710995743 Main PCB (For 09 model) 9710995750 Main PCB (For 12 model) 9710995705 Main PCB (For 14 model) 9710995767 Main PCB (For 18 model) Holder 9710019005 Communication PCB 9710661006 Power supply PCB 9900568009...
  • Page 60 Wire holder Item no. Part no. Part name Wire cover Pipe cover 9375503017 Bell-mouth hood 9375477011 Thermistor holder 9377765024 Drain pan sub assy (For 07, 09, 12, 14, 18 model) 9375718015 Drain port sub assy 9375721046 Float switch sub assy 9375717025 Drain pump sub assy 9375502010...
  • Page 61 Separate wall Evaporator holder 2 row Item no. Part no. Part name 9375720254 Evaporator sub assy (For 07 model) 9375720230 Evaporator sub assy (For 09, 12 model) 9375720223 Evaporator sub assy (For 14 model) 9375720247 Evaporator sub assy (For 18 model) Insulation box sub assy N/A: Not available - (02-7) -...
  • Page 62 Top plate assy Motor wire holder Cabinet A sub assy Cabinet B sub assy Turbo fan washer Item no. Part no. Part name 9375719012 Fan motor sub assy Fan motor 9375480011 2 stage turbo fan assy Shaft cap Washer cover Wire with connector —...
  • Page 63 3-2. Mini duct type ¢ Models: ARXG07–14KSLAP Item no. Part no. Part name 9710661020 Power supply PCB 9710624544 Main PCB (For 07 model) 9710624551 Main PCB (For 09 model) 9710624568 Main PCB (For 12 model) 9710624575 Main PCB (For 14 model) 9710019005 2-way remote PCB 9900568009...
  • Page 64 Main Panel (2 Fan) Item no. Part no. Part name 9381930111 Drain pan sub assy 9381933440 Evaporator total assy 9900472061 Pump assy 9900465063 Float switch 9378450097 Hose sub assy 9358746004 Drain cap - (02-10) - 3-2. Mini duct type 3. Indoor unit parts list...
  • Page 65 Item no. Part no. Part name 9379570015 Sirocco fan assy 9383443008 Rubber (Vibration proof) 9381676002 Casing B 9381677016 Casing U 9603551018 DC fan motor 9379574006 Air filter Motor bracket assy 9381669004 Motor band L 9381670000 Motor band R N/A: Not available - (02-11) - 3-2.
  • Page 66 ¢ Model: ARXG18KSLAP  Chassis - (02-12) - 3-2. Mini duct type 3. Indoor unit parts list...
  • Page 67 Item no. Part no. Part name 9379971065 Sirroco fan sub assy 9383443008 Rubber vibration proof assy 9379570022 Sirroco fan assy 9381676002 Casing B 9603552015 DC fan motor 9381669004 Motor band L 9381670000 Motor band R Air guide L Air guide R 9381933624 Evaporator total assy Hook metal...
  • Page 68  Inverter unit - (02-14) - 3-2. Mini duct type 3. Indoor unit parts list...
  • Page 69 Item no. Part no. Part name 9710624599 Main PCB 9710019005 2way remote PCB 9900896003 Terminal block (RC) 9900568009 Terminal block (Power supply) 9710661020 Power PCB Wire with connector — 9710177057 (CN46—External input) Wire with connector — 9710173066 (CN300—Remote terminal) Wire with connector —...
  • Page 70 3-3. Slim duct type ¢ Models: ARXG07–14KLLAP Item no. Part no. Part name Side panel R sub assy Side panel L sub assy Pipe panel sub assy Panel (Window) sub assy Outlet frame assy Front panel (2-fan) Valve cover sub assy 9380589006 Fan guard (2-fan) 9379574006...
  • Page 71 Item no. Part no. Part name Top panel sub assy 9379570015 Sirocco fan assy 9379644006 Rubber (Vibration proof) 9379572019 Casing B 9379571012 Casing U 9603734008 DC fan motor (For 07 model) 9603735005 DC fan motor (For 09, 12, 14 model) 9378450097 Hose sub assy 9379914062...
  • Page 72 Item no. Part no. Part name 9710661006 Power supply PCB 9710624582 Main PCB (For 07 model) 9710624520 Main PCB (For 09 model) 9710624537 Main PCB (For 12 model) 9710624469 Main PCB (For 14 model) 9710019005 2-way remote PCB 9900568009 Terminal block 3P 9900896003 Terminal block 3P (For wired remote controller) 9900653019...
  • Page 73 ¢ Model: ARXG18KLLAP Item no. Part no. Part name Side panel R sub assy Side panel L sub assy Pipe panel sub assy Panel (Window) sub assy Outlet frame assy Front panel (3-fan) Valve cover sub assy 9380590002 Fan guard (3-fan) 9379575003 Air filter Main panel (3-fan)
  • Page 74 Item no. Part no. Part name Top panel sub assy 9379570022 Sirocco fan assy Sirocco fan assy Shaft assy Joint assy 9379644006 Rubber (Vibration proof) 9379572019 Casing B 9379571012 Casing U 9603736002 DC fan motor 9378450097 Hose sub assy 9379914062 Drain pump sub assy 9378593039 Float switch sub assy...
  • Page 75 Item no. Part no. Part name 9710661006 Power supply PCB 9710624452 Main PCB 9710019005 2-way remote PCB 9900568009 Terminal block 3P 9900896003 Terminal block 3P (For wired remote controller) 9900653019 Thermistor (Room temp.) 9900349035 Thermistor (Pipe temp.) Wire with connector —...
  • Page 76 3-4. Medium static pressure duct type ¢ Models: ARXH12–18KMTAP  Chassis 12 11 - (02-22) - 3-4. Medium static pressure duct type 3. Indoor unit parts list...
  • Page 77 Item no. Part no. Part name 9355160001 Casing A sub assy 9351449001 Sirocco fan assy 9900960049 Thermistor (Room) 9355063005 Casing B sub assy 9604176005 DC fan motor 9381513000 Motor band A 9381597000 Motor band assy 9712275010 Power supply PCB 9900568009 Terminal block 3P (Power) 9901150012 Terminal block 5P (Remote)
  • Page 78 3-5. Wall mounted type ¢ Models: ASEH07–14KMCG and ASEH07–14KMCG-B  Exterior parts - (02-24) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 79 Item no. Part no. Part name 9388142012 Bracket panel 9387714067 Stepping motor holder assy 9387456004 Stepping motor holder 9901011092 Stepping motor 9387479041 Horizontal louver assy (07-14KMCG) 9387479119 Horizontal louver assy (07-14KMCG-B) 9384977168 Front panel total assy (07-14KMCG) 9384977533 Front panel total assy (07-14KMCG-B) 9387473018 Air filter 9317250009...
  • Page 80  Base, evaporator, and control unit - (02-26) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 81 Item no. Part no. Part name Service part 9387593686 Evaporator total assy (07—12 models) ♦ 9387593204 Evaporator total assy (14 model) ♦ 9387467017 Room thermistor holder ♦ 9901160042 Thermistor assy ♦ 9387587227 Base assy ♦ 9300506007 WLAN Adapter ♦ 9712546004 Main PCB (07 model) ♦...
  • Page 82 ¢ Models: ASEG07–14KETF and ASEG07–14KETF-B  Exterior parts - (02-28) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 83 Item no. Part no. Part name 9387480023 Bracket panel 9387471007 Louver spring Bush 9387714036 Stepping motor holder assy 9901011047 Stepping motor 9387590166 Drain pan total assy 9333766072 Blow panel assy (07—14KETF) 9333766089 Blow panel assy (07—14KETF-B) Screw cover R (07—14KETF) Screw cover R (07—14KETF-B) Screw cover L (07—14KETF) Screw cover L (07—14KETF-B)
  • Page 84  Base, evaporator, and control - (02-30) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 85 Item no. Part no. Part name 9387587098 Base assy (07—14KETF) 9387587104 Base assy (07—14KETF-B) WLAN adapter holder assy 9300506007 WLAN adapter 9711732781 Main PCB (07 model) 9711732798 Main PCB (09 model) 9711732804 Main PCB (12 model) 9711732811 Main PCB (14 model) Cable guide 9711382009 Display assy...
  • Page 86 ¢ Models: ASEH07–14KGTG  Exterior parts - (02-32) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 87 Item no. Part no. Part name 9388142005 Bracket panel 9387714036 Stepping motor holder assy 9387456004 Stepping motor holder 9901011047 Stepping motor 9387479003 Horizontal louver assy 9387596991 Front panel total assy 9387473032 Air filter 9317250009 Air clean filter assy 9387471007 Louver spring 9387590241 Drain pan total assy 9316177017...
  • Page 88  Base, evaporator, and control unit - (02-34) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 89 Item no. Part no. Part name 9387593662 Evaporator total assy (07 and 09 models) 9387593679 Evaporator total assy (12 and 14 models) 9387467000 Room thermistor holder 9901160035 Thermistor assy 9387587128 Base assy 9384563040 WLAN Adapter 9712546042 Main PCB (07 model) 9712546059 Main PCB (09 model) 9712546066...
  • Page 90 ¢ Models: ASEH05–12KNCA  Exterior parts - (02-36) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 91 Item no. Part no. Part name 9388147024 Bracket panel Wire cover assy 9333888033 Louver assy (Up/Down) Screw cover Under cover R 9334098004 Remote controller holder 9358365069 Remote controller assy 9333886169 Front panel total assy Grille clamper R Grille clamper L 9333868004 Air filter Under cover L...
  • Page 92  Chassis - (02-38) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 93 Item no. Part no. Part name 9387593518 Evaporator total assy 9387467017 Room thermistor holder 9901013010 Terminal block 9901160042 Thermistor assy 9712493094 Main PCB (for 05 model) 9712493001 Main PCB (for 07 model) 9712493018 Main PCB (for 09 model) 9712493025 Main PCB (for 12 model) 9711146021 Display assy 9711147028...
  • Page 94 ¢ Model: ASEG18KMTE  Exterior parts - (02-40) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 95 Item no. Part no. Part name 9388158013 Bracket panel Screw cover Wire cover assy B Wire cover assy WLAN adapter holder assy 9387479010 Louver assy (Up/Down) Under cover R 9317250009 Air cleaning filter assy 9362256056 Wireless remote controller 9318912005 Remote controller holder 9384977045 Front panel total assy Intake grille assy...
  • Page 96  Chassis - (02-42) - 3-5. Wall mounted type 3. Indoor unit parts list...
  • Page 97 Item no. Part no. Part name 9383735332 Evaporator total assy 9387467000 Room thermistor holder 9901013010 Terminal block 3P 9711732330 Main PCB (18 model) 9900627041 Thermistor assy 9711146281 Display assy 9711147011 Indicator PCB 9387587159 Base assy Pipe bracket A Under cover C Screw cover 9384500007 Motor case sub assy...
  • Page 98 3-6. Ceiling type ¢ Model: ABEG18KRTA  Chassis - (02-44) - 3-6. Ceiling type 3. Indoor unit parts list...
  • Page 99 Item no. Part no. Part name 9384321015 Intake grille A sub assy Grille hinge (2 pcs.) 9383342011 Air filter B 9384307002 Casing U assy 9384110015 Sirocco fan assy 9383443008 Rubber (Vibration proof) 9603817008 DC fan motor Motor mount assy 9384311009 Casing B assy Cap (Power) 9383406003...
  • Page 100 3-7. Floor type ¢ Models: AGEG09–14KVCA  Exterior parts and chassis - (02-46) - 3-7. Floor type 3. Indoor unit parts list...
  • Page 101 Item no. Part no. Part name Base Base cover A Base cover B Base bracket 9316272019 Bracket panel 9306628024 Bearing C assy 9900720087 Terminal block 3P Terminal cover 9316186019 Front panel R 9316415218 Front panel total assy 9316189027 Air filter 9316418141 Intake grille assy Rope assy...
  • Page 102  Casing - (02-48) - 3-7. Floor type 3. Indoor unit parts list...
  • Page 103 Item no. Part no. Part name 9316411012 Casing assy Top cover Spacer C Joint U Guard holder Spacer D L and R louver U Fan guard Casing cover L and R Bushing B Casing cover F 9316206014 Louver Z 9316205017 Louver U Bushing A Gear case...
  • Page 104  Drain pan - (02-50) - 3-7. Floor type 3. Indoor unit parts list...
  • Page 105 Item no. Part no. Part name 9316412057 Drain pan assy Limit switch cover Key top Drain cap Drain pan U Wire with connector 9711683007 (Refrigerant leak detect sensor—P410 on Main PCB) 9901089008 Refrigerant leak detect sensor Sensor cover seal Sensor cover Drain hose assy Drain hose holder Bushing B...
  • Page 106 4. Outdoor unit parts list 4-1. Models: AOEG18KBCA3 and AOEG24KBCA3 ¢ Exterior parts and Chassis - (02-52) - 4-1. Models: AOEG18KBCA3 and AOEG24KBCA3 4. Outdoor unit parts list...
  • Page 107 Item no. Part no. Part name 9322556073 Top panel assy 9322811042 Protective net 9322552266 Cabinet right assy 9322554031 Terminal cover assy 9322570079 Switch cover assy Shield panel 9900369088 Terminal block (Power) 9900369071 Terminal block (Inner) 9711609007 Indicator PCB 9711434562 Main PCB (for 18 model) 9711434579 Main PCB (for 24 model) 9900565008...
  • Page 108 ¢ Compressor - (02-54) - 4-1. Models: AOEG18KBCA3 and AOEG24KBCA3 4. Outdoor unit parts list...
  • Page 109 Item no. Part no. Part name S-insulator K S-insulator B 9900186029 Pressure switch 9384894007 4-way valve assy 9970194016 Solenoid Pipe (Condenser outlet) B 9970186073 Expansion valve coil C (L=1160) 9970187049 Expansion valve coil B (L=1040) 9970186066 Expansion valve coil A (L=920) Valve unit (For 18 model) Valve unit (For 24 model) Muffler...
  • Page 110 5. Accessories 5-1. Compact cassette type ¢ Models: AUXG07–18KVLA Part name Exterior Part name Exterior Operation manual Drain hose insulation Operation manual Hose band (CD-ROM) Coupler heat insulation Installation manual (large) Coupler heat insulation Template (Carton top) (small) M10 nut A Cable tie (with flange) M10 nut B...
  • Page 111 5-2. Mini duct type ¢ Models: ARXG07–14KSLAP Part name Exterior Part name Exterior Operation manual Drain hose Operation manual Hose band (CD-ROM) Installation manual Drain hose insulation B Installation template Washer (Carton top) Coupler heat insulation Cable tie (large) (large) Coupler heat insulation Cable tie (medium) (small)
  • Page 112 ¢ Model: ARXG18KSLAP Part name Exterior Part name Exterior Operation manual Drain hose Operation manual Hose band (CD-ROM) Installation manual Drain hose insulation B Installation template Washer (Carton top) Coupler heat insulation Cable tie (large) (large) Coupler heat insulation Cable tie (medium) (small) Insulation Filter (large)
  • Page 113 5-3. Slim duct type ¢ Models: ARXG07–18KLLAP Part name Exterior Part name Exterior Operation manual Cable tie (Large) Installation manual Cable tie (Small) Installation template Drain hose Washer Hose band Coupler heat insulation Drain hose insulation B (Large) Coupler heat insulation Remote controller (Small) Filter (Small)
  • Page 114 5-4. Medium static pressure duct type ¢ Models: ARXH12–18KMTAP Part name Exterior Part name Exterior Operation manual Cable tie (large) Operation manual Cable tie (medium) (CD-ROM) Installation manual Cable tie (small) Washer Drain hose insulation Coupler heat insulation Drain hose (large) Coupler heat insulation Hose band...
  • Page 115 5-5. Wall mounted type ¢ Models: ASEH07–14KMCG, ASEH07–14KMCG-B, and ASEH07– 14KGTG Part name Exterior Part name Exterior Operation manual Cloth tape Self-tapping screw Installation manual (large) Self-tapping screw Remote controller (small) Battery Wall hook bracket Remote controller Filter holder holder Installation spacer Air cleaning filters Operation manual...
  • Page 116 ¢ Models: ASEG07–14KETF and ASEG07–14KETF-B Part name Exterior Part name Exterior Operation manual Cloth tape Operation manual Self-tapping screw (CD-ROM) (large) Self-tapping screw Installation manual (small) Remote controller Wall hook bracket Battery Filter holder Remote controller Air cleaning filters holder Template (for pipe cover cutting) ¢...
  • Page 117 ¢ Model: ASEG18KMTE Part name Exterior Part name Exterior Operation manual Cloth tape Operation manual Self-tapping screw (CD-ROM) (large) Self-tapping screw Installation manual (small) Remote controller Wall hook bracket Remote controller Filter holder holder Battery Air cleaning filters - (02-63) - 5-5.
  • Page 118 5-6. Ceiling type ¢ Model: ABEG18KRTA Part name Exterior Part name Exterior Operation manual Insulation Operation manual Drain hose (CD-ROM) Installation manual Hose band Template Cable tie (large) M10 nut A Cable tie (small) (with flange) M10 nut B Remote controller cable (with spring lock hole cap washer)
  • Page 119 5-7. Floor type ¢ Models: AGEG09–14KVCA Part name Exterior Part name Exterior Operation manual (CD- Operation manual ROM) Installation manual Cloth tape Self-tapping screws Wall hook bracket (large) Self-tapping screws Remote controller (small) Battery Air cleaning filters Remote controller holder - (02-65) - 5-7.
  • Page 120 5-8. Outdoor unit ¢ Model: AOEG18KBCA3 Part name Exterior Part name Exterior Installation manual Drain pipe ¢ Model: AOEG24KBCA3 Part name Exterior Part name Exterior Adapter K Installation manual 12.70 mm (1/2 in) to 9.52 mm (3/8 in) Drain pipe - (02-66) - 5-8.
  • Page 121 6. Optional parts 6-1. Indoor unit ¢ Controllers  Lineup Type Indoor unit type Wireless Remote Controller AR-REM7E AR-REW2E AR-REW3E AR-REW4E Compact cassette — — — — Mini duct — — — — Slim duct — — — — Medium static pressure duct —...
  • Page 122 Type IR Receiver Kit with Wireless Indoor unit type Wired Remote Controller Remote Controller UTY-RNRYZ* UTY-RCRYZ1 UTY-LBTYM UTY-LBTYH Compact cassette ◌ ◌ — — Mini duct ◌ ◌ ◌ — Slim duct ◌ ◌ ◌ — Medium static pressure duct ◌...
  • Page 123  Parts Exterior Part name Model name Summary Remote controller that provides the functions you need in a sleek design Wired Remote that uniquely transforms itself to blend Controller UTY-RVRY with any interior. (Touch Panel) Wire type: Non-polar 2-wire Easy finger touch operation with LCD Wired Remote panel.
  • Page 124 Exterior Part name Model name Summary Compact remote controller concentrates on the basic functions such as Start/Stop, fan control, and Simple Remote temperature setting. UTY-RHRY Controller Wire type: Non-polar 2-wire Compact remote controller concentrates on the basic functions such as Start/Stop, fan control, temperature setting, and operation Simple Remote UTY-RSNYM...
  • Page 125 ¢ Cassette grille  Lineup Indoor unit type Model Compact cassette UTG-UFYF-W  Part Exterior Part name Model name Summary This cassette grille can be installed Cassette Grille UTG-UFYF-W appropriately on the grid type ceiling common in the office. - (02-71) - 6-1.
  • Page 126 ¢ Others  Lineup Type Air Outlet Shutter Insulation Kit for Fresh Air Intake Half Concealed Indoor unit type Plate High Humidity UTR-YDZB UTZ-KXGC UTZ-VXAA UTR-STA Compact cassette ◌ ◌ ◌ — Mini duct — — — — Slim duct —...
  • Page 127 Type Modbus Indoor unit type KNX Convertor Network Converter Converter UTY-VKSX UTY-VTGX UTY-VTGXV UTY-VMSX Compact cassette ◌ ◌ ◌ ◌ Mini duct ◌ ◌ ◌ ◌ Slim duct ◌ ◌ ◌ ◌ Medium static pressure duct ◌ ◌ ◌ ◌ Floor ◌...
  • Page 128 Type Indoor unit type Long-life Filter External Input and Output PCB Box UTD-LFDC UTZ-GXDA UTZ-GXEA Compact cassette — — — Mini duct — — — Slim duct — — — Medium static pressure duct ◌ ◌ — Floor — — —...
  • Page 129  Parts Exterior Part name Model name Summary Thermo-sensor for sensing the Remote Sensor temperature of arbitrary place in the UTY-XSZX Unit room. Width: 683 mm Auto Louver UTD-GXTA-W Grille Kit For 07, 09, 12, and 14 models Width: 883 mm Auto Louver UTD-GXTB-W Grille Kit...
  • Page 130 Exterior Part name Model name Summary Half Concealed Used for the indoor unit installing of UTR-STA half concealed. Use to connect with external devices External Input and air conditioner PCB. UTY-XCSX and Output PCB Use to connect with external devices and air conditioner PCB.
  • Page 131 Exterior Part name Model name Summary Remotely manage an air conditioning system using mobile devices such as smartphones and tablets. WLAN Adapter UTY-TFSXF2 Appropriate application for each region is required to use this option. For details, contact FGL sales company. For connection between indoor unit Modbus with UART interface and a Modbus...
  • Page 132 7. Refrigerant system diagrams 7-1. Models: AOEG18KBCA3 and AOEG24KBCA3 Pressure switch CONDENSER - (02-78) - 7-1. Models: AOEG18KBCA3 and AOEG24KBCA3 7. Refrigerant system diagrams...
  • Page 133 8. Wiring diagrams 8-1. Compact cassette type ¢ Models: AUXG07–18KVLA - (02-79) - 8-1. Compact cassette type 8. Wiring diagrams...
  • Page 134 8-2. Mini duct type and Slim duct type ¢ Models: ARXG07–18KSLAP and ARXG07–18KLLAP WLAN adapter, Converter etc. (Option) - (02-80) - 8-2. Mini duct type and Slim duct type 8. Wiring diagrams...
  • Page 135 8-3. Medium static pressure duct type ¢ Models: ARXH12–18KMTAP - (02-81) - 8-3. Medium static pressure duct type 8. Wiring diagrams...
  • Page 136 8-4. Wall mounted type ¢ Models: ASEH07–14KMCG and ASEH07–14KMCG-B - (02-82) - 8-4. Wall mounted type 8. Wiring diagrams...
  • Page 137 ¢ Models: ASEG07–14KETF and ASEG07–14KETF-B - (02-83) - 8-4. Wall mounted type 8. Wiring diagrams...
  • Page 138 ¢ Models: ASEH07–14KGTG - (02-84) - 8-4. Wall mounted type 8. Wiring diagrams...
  • Page 139 ¢ Models: ASEH05–12KNCA - (02-85) - 8-4. Wall mounted type 8. Wiring diagrams...
  • Page 140 ¢ Model: ASEG18KMTE - (02-86) - 8-4. Wall mounted type 8. Wiring diagrams...
  • Page 141 8-5. Ceiling type ¢ Model: ABEG18KRTA - (02-87) - 8-5. Ceiling type 8. Wiring diagrams...
  • Page 142 8-6. Floor type ¢ Models: AGEG09–14KVCA - (02-88) - 8-6. Floor type 8. Wiring diagrams...
  • Page 143 8-7. Outdoor unit ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 - (02-89) - 8-7. Outdoor unit 8. Wiring diagrams...
  • Page 144 9. PC board diagrams 9-1. Models: AUXG07–18KVLA CONTROL UNIT 07 model : EZ-01835HSE 09 model : EZ-0181RHSE Thermistor Characteristics. 12 model : EZ-0181SHSE 14 model : EZ-0181CHSE 18 model : EZ-0181THSE Temperature ( 20 ( 30 EMI FILTER Thermistor ZCAT1518-0730 TERMINAL 33.62 k 12.54 k...
  • Page 145 9-2. Models: ARXG07–18KSLAP CONTROL UNIT 07 model : EZ-01830HSE 09 model : EZ-01831HSE 12 model : EZ-01832HSE 14 model : EZ-01833HSE 18 model : EZ-02003HSE Thermistor Characteristics. Temperature ( 20 ( 30 Thermistor BLACK F200 THERMISTOR ( ROOM TEMP. ) B02B-XASK-1-A BLACK 33.62 k...
  • Page 146 9-3. Models: ARXG07–18KLLAP CONTROL UNIT 07 model : EZ-01834HSE 09 model : EZ-0181YHSE 12 model : EZ-01820HSE 14 model : EZ-01814HSE 18 model : EZ-01813HSE Thermistor Characteristics. Temperature ( 20 ( 30 Thermistor 33.62 k 12.54 k 8.04 k Thermistor ( Room temp. ) CN8-1 BLACK 1.15 V...
  • Page 147 9-4. Models: ARXH12–18KMTAP CONTROL UNIT 12 model: EZ-02302HSE 14 model: EZ-02303HSE 18 model: EZ-02304HSE TERMINAL CN8 Thermistor Characteristics. UL1007 AWG22 RED CN300-1 REMOTE CN300 DC 5 V CN300-2 UL1007 AWG22 WHITE Temperature CONTROLLER 0°C 20°C 30°C B04B-XARK-1-A (LF) (SN) Thermistor CN8-1 CN300-3 BLACK...
  • Page 148 9-5. Model: ASEG18KMTE CONTROL UNIT 18 model : EZ-02110HSE 22 model : EZ-02111HSE 24 model : EZ-02112HSE OPTION (2-WIRE REMOTE CONTROLLER UNIT) TERMINAL JXO-T3102-3P-B UTY-TWRXZ2 AWG22 AWG22 BLACK REMOTE CN14 CN301 OUTDOOR UNIT CN300 AWG22 WHITE CONTROLLER B3 ( 5.0 ) B-XASK-1-A AWG26 B07B-PASK-1 POWER SOURCE...
  • Page 149 ( 1 RED ) WHITE BLACK ( EX. COM1 ) UL1430 AWG26 x 4 GND_B2 DC 12 V Optional: - FUJITSU brand for all destinations ORANGE LOUVER ( UP / DOWN ) YELLOW B05B-PLISK-1 (LF)(SN) - GENERAL brand for France PINK WHITE...
  • Page 150 9-7. Models: ASEG07–14KETF and ASEG07–14KETF-B CONTROL UNIT 07 model : EZ-0210SHSE 09 model : EZ-0210THSE 12 model : EZ-0210WHSE 14 model : EZ-0210YHSE OPTION (2-WIRE REMOTE CONTROLLER UNIT) TERMINAL JXO-T3102-3P-B UTY-TWRXZ2 AWG22 AWG22 BLACK REMOTE CN14 CN301 OUTDOOR UNIT CN300 AWG22 WHITE CONTROLLER...
  • Page 151 UL1430 AWG26 x 4 GND_B2 Control power voltage input White Optional: Speed control voltage input Yellow - FUJITSU brand for all destinations Revolution pulse output Blue - GENERAL brand for France Built-in: for the other brands DC 12 V ORANGE...
  • Page 152 DC 15 V BLACK WHITE DC FAN MOTOR WHITE Optional: YELLOW BLUE - FUJITSU brand for all destinations Black MAIN PCB - GENERAL brand for France Control power voltage input White Built-in: for the other brands Speed control voltage input...
  • Page 153 9-10. Model: ABEG18KRTA CONTROL UNIT 18 model : EZ-019GHSE EMI FILTER ZCAT1518-0730 CN8 Thermistor Characteristics. TERMINAL 2 TURNS DC12V Temperature REMOTE CONTROLLER UL1007 AWG22 ( 20 ( 30 14-1 Thermistor UL1007 AWG22 WHITE 14-2 2-WIRE TYPE ( OPTION ) 33.62 k 12.54 k 8.04 k CN14...
  • Page 154 9-11. Models: AGEG09–14KVCA CONTROL UNIT 09 model : EZ-01915HSE 12 model : EZ-01916HSE 14 model : EZ-01917HSE INDICATOR PCB K20AE-2000HSE-D0 EMI FILTER GRFC-8 2 TURNS P1002 JB20-09HG UL1430 AWG22 BLACK WHITE 3.15A POWER SOURCE WHITE AC250V UL1430 AWG22 AC230V WHITE WHITE P360 50Hz...
  • Page 155 9-12. Models: AOEG18KBCA3 and AOEG24KBCA3 INVERTER ASSEMBLY 18 model : EZ-0193LHUE 24 model : EZ-020RHUE P650 DC Fan motor1 & 2 Terminal Lead wire Pin No. Function of terminal code color EMI FILTER EMI FILTER Motor power voltage input EMI FILTER KRFC-13 KRFC-13 KRFC-13...
  • Page 156 - (02-102) - 9-12. Models: AOEG18KBCA3 and AOEG24KBCA3 9. PC board diagrams...
  • Page 157 3. TROUBLESHOOTING 2024.07.22 SR_CH03_MU003ES_09...
  • Page 158 CONTENTS 3. TROUBLESHOOTING 1. Error code ....................03-1 1-1. How to check the error memory..................03-1 1-2. How to erase the error memory ..................03-1 1-3. Error code table (Indoor unit and wired remote controller)..........03-2 1-4. Error code table (Outdoor unit) ..................03-4 1-5. Error code table (Wireless LAN indicator)...............03-6 1-6.
  • Page 159 CONTENTS (continued) 2-33. E: 74. Outdoor temperature thermistor error (Outdoor unit)........03-59 2-34. E: 76. 2-way valve thermistor error (Outdoor unit) ............03-60 2-35. E: 76. 3-way valve thermistor error (Outdoor unit) ............03-61 2-36. E: 77. Heat sink thermistor error (Outdoor unit) ............03-62 2-37.
  • Page 161 1. Error code When a problem occurs in the system or the connected device, the error content is notified by dis- playing the code. NOTE: This function is only available in a system with indoor or IR receiver units equipped with in- dicator lamps to show the error content.
  • Page 162 1-3. Error code table (Indoor unit and wired remote controller) The operation, timer, and economy indicators operate according to the error contents. For confirmation of the error contents, refer the flashing pattern as follows. Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ]...
  • Page 163 Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ] controller (Green) (Orange) (Green) display E: 71. Discharge thermistor error (Outdoor 7 times 1 times Continuous unit) E: 72. Compressor thermistor error 7 times 2 times Continuous (Outdoor unit)
  • Page 164 1-4. Error code table (Outdoor unit) The operation status is determined by the lighting up and blinking of the LED lamp. After check that ERROR LED lamp blinks, press the ENTER button once. NOTE: For the positions of LED lamp and buttons, refer to "Function settings (for outdoor unit)"...
  • Page 165 MONITOR POWER/ Error contents ERROR MODE E: 74. Outdoor temperature thermistor ● ■ ■ ■ ○ ○ ○ ● error (Outdoor unit) E: 76. 2-way valve thermistor error ● ■ ■ ■ ○ ○ ○ ● (Outdoor unit) E: 76. 3-way valve thermistor error ●...
  • Page 166 1-5. Error code table (Wireless LAN indicator) • Wireless LAN control system diagram example Indoor unit Internet Main PCB Cloud Wireless Mobile app Parts: Outdoor unit router (Smart device) WLAN adapter • Name of parts WLAN adapter Wireless LAN label MAC: SSID: AP- PIN:...
  • Page 167 1-6. How to check the error code on Mobile app If there is an abnormality on the air conditioning, refer to as follows. When the (error button) on the home screen is tapped, error code and error name is displayed. Error button Error code Error name...
  • Page 168 1-7. Error code table (Mobile app) Error message Error contents Error code Serial reverse transmission error at start-up 11.1 E: 11. Serial communication error (Serial Serial reverse transmission error during reverse transfer error) (Outdoor unit) 11.2 operation Serial forward transmission error at start-up 11.3 E: 11.
  • Page 169 Error message Error contents Error code Outdoor unit PCB model information error 62.1 E: 62. Outdoor unit model information error Outdoor unit PCB microcomputer (Outdoor unit) 62.2 communication error Outdoor unit inverter error E: 63. Inverter error (Outdoor unit) 63.1 Outdoor unit abnormal voltage error 64.1 (permanent stop)
  • Page 170 1-8. Error message for wireless LAN control (Mobile app) ¢ Error display If there is an abnormality on the wireless control system, refer to error messages as follows. Error message - (03-10) - 1-8. Error message for wireless LAN control (Mobile app) 1.
  • Page 171 ¢ Error message list • Registration error Cause Error Error message code Solution Communication failed. After Communication with the air conditioner failed. checking the following Check the following contents depending on the status of indoor contents, please try again unit wireless LAN indicator lamp or WLAN Adapter LED 2 and after a while.
  • Page 172 Cause Error Error message code Solution WLAN adapter password is Failed because the smartphone could not connect to the air wrong. Enter it again. conditioner. Check the following contents depending on the status of indoor When problems are not unit wireless LAN indicator lamp or WLAN Adapter LED 2 and resolved, there may be other operate again.
  • Page 173 Cause Error Error message code Solution • The air conditioner you are trying to register is already registered to another account. • Registration failed because the air conditioner cannot connect to the Internet. • Immediately after turning on the power of the air Air conditioner registration conditioner, wait for about 5 minutes before registering it.
  • Page 174 Cause Error Error message code Solution Registration may have failed because a problem occurred in communication with the server (cloud). 2944 Communication failed. Wait for a while and then operate again. The connected air conditioner Your air conditioner does not support Direct Control. 2946 cannot use the Direct control.
  • Page 175 • Sign in error Cause Error Error message code Solution Various settings could not be completed because Communication failed. After 4010 communication with the server (cloud) failed. checking the following 4410 contents, please try again after Check the following contents and operate again. a while.
  • Page 176 Cause Error Error message code Solution User information or temperature unit information could not be Loading of user information obtained because communication with the server (cloud) failed. failed. Check the following Check the following contents and operate again. contents. 4420 1.
  • Page 177 • General error Cause Error Error message code Solution 0100 Communication with the air conditioner failed. 0200 0300 0400 Check the following contents depending on the status of indoor 0500 unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 178 Cause Error Error message code Solution The outdoor unit low noise timer information could not be obtained because communication with the server (cloud) failed. Check the following contents depending on the status of indoor unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 179 Cause Error Error message code Solution The error history information could not be obtained because communication with the server (cloud) failed. Check the following contents depending on the status of indoor unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 180 Cause Error Error message code Solution Air conditioner group setting has not been completed because communication with air conditioner failed. Check the following contents depending on the status of indoor unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 181 Cause Error Error message code Solution Air conditioner group setting has not been completed because communication with air conditioner failed. Check the following contents depending on the status of indoor unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 182 Cause Error Error message code Solution Air conditioner group setting has not been completed because communication with air conditioner failed. Check the following contents depending on the status of indoor unit wireless LAN indicator lamp or WLAN Adapter LED 2 and operate again.
  • Page 183 Cause Error Error message code Solution Various settings could not be completed because Failed to update the screen. communication with the server (cloud) failed. After checking the following contents, please try again after Check the following contents and operate again. a while.
  • Page 184 2. Troubleshooting with error code 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB When the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
  • Page 185 Check point 4. Check serial signal (Reverse transfer signal) Check serial signal (Reverse transfer signal) WHITE BLACK • Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1 —3. • If it is abnormal, check the parts below. –...
  • Page 186 2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB Indoor unit When the outdoor unit cannot properly receive the serial Detective actuator Fan motor signal from indoor unit for 10 seconds or more.
  • Page 187 Check point 4. Check serial signal (Forward transfer signal) Check serial signal (Forward transfer signal) WHITE BLACK • Check if indicated value swings between AC 30 V and AC 130 V at outdoor unit terminal 2—3. • If it is abnormal, replace main PCB. ↓...
  • Page 188 2-3. E: 12. Wired remote controller communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 12 Indoor unit Main PCB When the indoor unit cannot receive the signal from Detective actuator wired remote controller more than 1 minute during Wired remote control...
  • Page 189 ↓ Check Point 2. Wire installation wrong remote controller group setting • Wrong wire connection in remote controller group (Please refer to the installation manual) • The number of connecting indoor unit and remote controller in one remote controller group were less than 16 units.
  • Page 190 2-4. E: 15. Automatic air flow adjustment error (Indoor unit) Operation indicator 1 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 15 • On automatic airflow adjustment operation, when the fan speed other than 0rpm is detected at the 0rpm operation.
  • Page 191 2-5. E: 18. External communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 18 External After receiving a signal from the external input and Detective actuator Indoor unit communication output PCB, the same signal has not been received for...
  • Page 192 2-6. E: 22. Indoor unit capacity error (Indoor unit) Operation indicator 2 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 22 When the total capacity of the indoor units does not Detective actuator Indoor unit main PCB match outdoor unit capacity while 3 minutes after power...
  • Page 193 2-7. E: 23. Combination error (Outdoor unit) Operation indicator 2 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 23 The outdoor unit receives the serial signal of applied Detective actuator Indoor unit refrigerant information from indoor unit.
  • Page 194 2-8. E: 26. Address setting error in wired remote controller (Indoor unit) Operation indicator 2 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 26 Wired remote controller (2-wire) • When the address number set by auto setting and manual setting are mixed in one remote controller group Detective actuator...
  • Page 195 2-9. E: 29. Connected unit number error (Indoor unit) Operation indicator 2 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 29 Wired remote controller (2-wire) When the number of the connected indoor unit exceeds Detective actuator the limitation.
  • Page 196 2-10. E: 32. Indoor unit main PCB error (Indoor unit) Operation indicator 3 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 32 When power is on and there is some below case. Detective actuator Indoor unit Main PCB...
  • Page 197 2-11. E: 33. Indoor unit motor electricity consumption detection error (Indoor unit) Operation indicator 3 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 33 Indoor unit motor electricity When the voltage value or the current value of the motor Detective actuator consumption detection go beyond the limits...
  • Page 198 2-12. E: 35. MANUAL AUTO button error (Indoor unit) Operation indicator 3 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 35 Indoor unit controller PCB When the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 60 or more seconds.
  • Page 199 2-13. E: 39. Indoor unit power supply error for fan motor (Indoor unit) Operation indicator 3 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 39 • When a momentary power cut off Detective actuator Indoor unit main PCB •...
  • Page 200 2-14. E: 3A. Indoor unit communication circuit (wired remote controller) error Operation indicator 3 time flash Timer indicator 10 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 3A Wired remote controller (2-wire) Detect the communication error of microcomputer and Detective actuator communication PCB.
  • Page 201 2-15. E: 41. Room temperature sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 41 Indoor unit main PCB Room temperature thermistor is open or short is Detective actuator detected always.
  • Page 202 2-16. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 42 Indoor unit main PCB When heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.
  • Page 203 2-17. E: 44. Human sensor error Operation indicator 4 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 44 1. Detect the open condition of the sensor. Detective actuator Indoor unit main PCB 2.
  • Page 204 2-18. E: 45. Refrigerant leakage sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 45 When refrigerant leakage sensor open, short circuit, or Detective actuator Refrigerant leakage sensor abnormal voltage of drive circuits detected.
  • Page 205 2-19. E: 45. Refrigerant leakage sensor deterioration (Indoor unit) Operation indicator 4 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 45 When refrigerant leakage sensor open, short circuit, or Detective actuator Refrigerant leakage sensor abnormal voltage of drive circuits detected.
  • Page 206 2-20. E: 51. Indoor unit fan motor error (Indoor unit) Operation indicator 5 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 51 Main PCB When the actual rotation number of the indoor unit fan Detective actuator Indoor unit motor is below 1/3 of the target rotation number...
  • Page 207 2-21. E: 53. Drain pump error (Indoor unit) Operation indicator 5 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 53 Indoor unit main PCB Detective actuator When Float switch is ON for more than 3 minutes. Float switch Float switch failure Shorted connector/wire failure...
  • Page 208 2-22. E: 57. Damper (Open/Close) detection limit switch error Operation indicator 5 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 57 Indoor unit main PCB • When limit switch were not able to detect the close though the damper close.(Upper air flow) Limit switch Detective actuator...
  • Page 209 2-23. E: 57. Damper (Open/Close) simultaneous detection limit switch error (Indoor unit) Operation indicator 5 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 57 Indoor unit main PCB When the limit switch detects open and close at the Detective actuator simultaneous.
  • Page 210 2-24. E: 58. Intake grille error (Indoor unit) Operation indicator 5 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 58 Indoor unit main PCB When the Micro switch is detected open while running Detective actuator the compressor.
  • Page 211 2-25. E: 5U. Indoor unit error Operation indicator 5 time flash Timer indicator 15 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 5U Check point. Check following error code. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) E: 11.
  • Page 212 2-26. E: 62. Outdoor unit model information error (Outdoor unit) Operation indicator 6 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 62 When power is on and there is some below case. Detective actuator Outdoor unit main PCB...
  • Page 213 2-27. E: 63. Inverter error (Outdoor unit) Operation indicator 6 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 63 Detective actuator Outdoor unit Inverter PCB Error information received from inverter PCB Forecast of cause External cause Power supply to inverter PCB and filter PCB wiring...
  • Page 214 2-28. E: 64. Active filter voltage error (Outdoor unit) Operation indicator 6 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 64 Main PCB • When inverter input DC voltage is higher than 425 V or lower than 80 V.
  • Page 215 2-29. E: 65. IPM error (Outdoor unit) Operation indicator 6 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 65 When the signal from FO terminal terminal of IPM is “L” Detective actuator Outdoor unit Main PCB (0 V) during the compressor stopping.
  • Page 216 2-30. E: 71. Discharge thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 71 Outdoor unit main PCB When discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...
  • Page 217 2-31. E: 72. Compressor thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 72 Outdoor unit main PCB When compressor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Compressor temperature thermistor...
  • Page 218 2-32. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 73 Outdoor unit main PCB When heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...
  • Page 219 2-33. E: 74. Outdoor temperature thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 74 Outdoor unit main PCB When outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...
  • Page 220 2-34. E: 76. 2-way valve thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 76 Outdoor unit main PCB When 2-way valve temperature thermistor open or short Detective actuator circuit is detected at power on or while running the 2-way valve temperature thermistor...
  • Page 221 2-35. E: 76. 3-way valve thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 76 Outdoor unit main PCB When 3-way valve temperature thermistor open or short Detective actuator circuit is detected at power on or while running the 3-way valve temperature thermistor...
  • Page 222 2-36. E: 77. Heat sink thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 77 Detective actuator Heat sink temperature thermistor Heat sink temperature thermistor short or open detected Connector failure Forecast of cause Thermistor failure...
  • Page 223 2-37. E: 84. Current sensor error (Outdoor unit) Operation indicator 8 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 84 When input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit Main PCB...
  • Page 224 2-38. E: 86. High pressure switch error (Outdoor unit) Operation indicator 8 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 86 Outdoor unit main PCB When pressure switch open is detected in 10 seconds Detective actuator after the power is turned on.
  • Page 225 2-39. E: 94. Over current error (Outdoor unit) Operation indicator 9 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 94 Main PCB 1. When more than normal operating current to IPM in main PCB flows, the compressor stops.
  • Page 226 Check point 4. Check compressor Check compressor. (Refer to inverter compressor in "Service parts information".) ↓ Check point 5. Replace the main PCB If Check point 1 to 4 do not improve the symptom, replace the main PCB. ↓ - (03-66) - 2-39.
  • Page 227 2-40. E: 95. Compressor motor control error (Outdoor unit) Operation indicator 9 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 95 Main PCB 1. When running the compressor, if the detected rotor location is out of phase with actual rotor location more than 90°, the compressor stops.
  • Page 228 2-41. E: 97. Outdoor unit fan motor error (Outdoor unit) Operation indicator 9 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 97 Main PCB 1. When outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.
  • Page 229 2-42. E: 99. 4-way valve error (Outdoor unit) Operation indicator 9 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 99 Indoor unit main PCB When the indoor heat exchanger temperature is compared with the room temperature, and either Heat exchanger temperature following condition is detected continuously two times,...
  • Page 230 Check point 3. Check the solenoid coil and 4-way valve • Solenoid coil Remove CN30 from PCB and check the resistance value of coil. Resistance value is about1.4 kΩ. → If it is open or abnormal resistance value, replace solenoid coil. •...
  • Page 231 2-43. E: 9A. Coil 1 (expansion valve 1) error Operation indicator 9 time flash Timer indicator 10 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 9A EEV coil Detective actuator Coil (Expansion valve) driver circuit open detected. Main PCB EEV coil loose connection EEV wires cut or pinched...
  • Page 232 2-44. E: A1. Discharge temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A1 Outdoor unit main PCB Protection stop by discharge temperature ≥ 110°C Detective actuator during compressor operation generated 2 times within Discharge temperature thermistor...
  • Page 233 Check point 5. Check the refrigerant amount Check the refrigerant leakage. ↓ Check point 6. Replace the main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. ↓ - (03-73) - 2-44. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 234 2-45. E: A3. Compressor temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A3 Outdoor unit main PCB Protection stop by compressor temperature ≥ 110°C Detective actuator during compressor operation generated 2 times within Compressor temperature thermistor...
  • Page 235 Check point 5. Check the refrigerant amount Check the refrigerant leakage. ↓ Check point 6. Replace the main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. ↓ - (03-75) - 2-45. E: A3. Compressor temperature error (Outdoor unit) 2.
  • Page 236 2-46. E: A8. Refrigerant leakage sensor error (Indoor unit) Operation indicator 10 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A8 Detective actuator Refrigerant leakage sensor Forecast of cause Refrigerant leakage Check point 1.
  • Page 237 3. Troubleshooting without error code 3-1. Indoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Isn’t the breaker down? • Check loose or removed connection cable. -> If abnormal condition is found, correct it by referring to the installation manual or the DESIGN & TECHNICAL MANUAL.
  • Page 238 3-2. Outdoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Is the circuit breaker on or off? • Check loose or removed connection cable. → If abnormal condition is found, correct it by referring to the installation manual or the DESIGN & TECHNICAL MANUAL.
  • Page 239 3-3. No operation (Power is on) Setting/Connection failure Forecast of cause External cause Electrical components defective Check point 1. Check the indoor and outdoor installation condition • Indoor unit: – Check incorrect wiring between the indoor unit and remote controller. –...
  • Page 240 Check point 3. Check the wired remote controller and controller PCB [Compact cassette, slim duct, ceiling, and floor types] Check voltage at CN14 (terminal 1—3) of main PCB or communication PCB. (Power supply to remote controller) • If it is DC 12 V, the remote controller is failure. (The controller PCB is normal) ->...
  • Page 241 3-4. No cooling/No heating Indoor unit error Outdoor unit error Forecast of cause Effect by surrounding environment Connection pipe/Connection wire failure Refrigeration cycle failure Check point 1. Check Indoor unit • Does Indoor unit fan run in the HIGH mode? •...
  • Page 242 NOTES: • Strainer normally does not have temperature difference between inlet 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, re- place the strainer.
  • Page 243 3-5. Abnormal noise Abnormal installation (indoor unit/outdoor unit) Forecast of cause Fan failure (indoor unit/outdoor unit) Compressor failure (outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Outdoor Abnormal noise is coming from Indoor unit. unit. (Check and correct followings) (Check and correct followings) ↓...
  • Page 244 3-6. Water leaking Erroneous installation Forecast of cause Drain hose failure Diagnosis method when water is spitting Diagnosis method when water leak occurs • Is main unit installed in stable condi- tion? Is the filter clogged? • Is main unit broken or deformed at the time of transportation or maintenance? ↓...
  • Page 245 4. Troubleshooting with error code (For wireless LAN adapter) 4-1. E: 18. External communication error between indoor unit and wireless LAN adapter Operation indicator 1 time flash Timer indicator 8 time flash Economy indicator Continuous flash Indoor unit Indicator Wireless LAN Flashing slowly indicator Error code...
  • Page 246 4-2. Network communication error between wireless LAN router and wireless LAN adapter Operation indicator No indication Timer indicator No indication Economy indicator No indication Indoor unit Indicator Wireless LAN Flashing slowly indicator Error code — Mobile app No indication Wireless LAN router When the not connection between wireless LAN adapter and wireless LAN router.
  • Page 247 Check point 4. Replace wireless LAN adapter. If check point 3 do not improve the symptom, replace the wireless LAN adapter and cancel the reg- istration of air conditioner on the Mobile app. After replacing the adapter, perform the pairing on the Mobile app. For the method of the Mobile app, refer to "Mobile app setting method"...
  • Page 248 4-3. E: 18. Communication error Operation indicator 1 time flash Timer indicator 8 time flash Economy indicator Continuous flash Indoor unit Indicator Wireless LAN Flashing slowly indicator Error code E: 18 Mobile app E: 18.1 Wireless LAN router When the external communication error between indoor unit and wireless LAN adapter and network Wireless LAN adapter PCB communication error between wireless LAN router and...
  • Page 249 Check point 4. Check the connection cable Check the connection cable on the wireless LAN router. -> If there is loose connector, open cable or mis-wiring, correct it. ↓ Check point 5. Check the connection status. Check the connection status to the Internet and wireless LAN router. ->...
  • Page 250 4-4. E: 18. Wireless LAN adapter non-energized Operation indicator 1 time flash Timer indicator 8 time flash Economy indicator Continuous flash Indoor unit Indicator Wireless LAN No indication indicator Error code E: 18 Mobile app No indication Indoor unit controller PCB When the voltage (DC 12 V) does not output from the Detective actuator controller PCB.
  • Page 251 4-5. Mobile app setting method ¢ Air conditioner delete method When the wireless LAN adapter is replaced, delete of all air conditioner is necessary on the mobile app. Launch the mobile app. Tap the icon to display the Setting screen. Tap the “Air conditioner editing”.
  • Page 252 Tap the air conditioner to be deleted. Tap the Delete button. Tap the OK button. Deletion of the air conditioner registered in the mobile app is completed. - (03-92) - 4-5. Mobile app setting method 4. Troubleshooting with error code (For wireless LAN adapter)
  • Page 253 5. Service parts information 5-1. Compressor Diagnosis method of compressor (If outdoor unit LED displays error, refer to troubleshooting) Does not start up Stops soon after starting up Abnormal noise ↓ ↓ ↓ Check if vibration noise by Is there open or loose con- Is there open or loose con- loose bolt or contact noise of nection cable?
  • Page 254 5-2. Inverter compressor ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 Check point 1. Check connection • Check terminal connection of compressor (loose or incorrect wiring) W(C) V(S) (BLACK) (WHITE) Main PCB U(R) (RED) • Check terminal connection of main PCB (loose or incorrect wiring) Main PCB W400(U) W401(V) W402(W)
  • Page 255 Check point 3. Replace inverter PCB If check point 1 to 2 do not improve the symptom, replace main PCB. - (03-95) - 5-2. Inverter compressor 5. Service parts information...
  • Page 256 5-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "Wiring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-79.
  • Page 257 Check point 6. Check strainer • Strainer normally does not have temperature difference between inlet 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.
  • Page 258 5-4. Indoor unit fan motor ¢ Models: AUXG07–18KVLA Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) → If fan or bearing is abnormal, replace it. Check point 2.
  • Page 259 ¢ Models: ARXG07–18KSLAP, ARXG07–18KLLAP, ARXH12– 18KMTAP,ASEH12–14KGTG, ASEG18KMTE, ASEH07–14KMCG, ASEH07–14KMCG-B, ASEG14KETF, ASEG14KETF-B, ASEH05– 12KNCA, and ABEG18KRTA Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) →...
  • Page 260 ¢ Models: ASEG07–12KETF and ASEG07–12KETF-B Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) → If fan or bearing is abnormal, replace it. Check point 2.
  • Page 261 ¢ Models: AGEG09–14KVCA Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) → If fan or bearing is abnormal, replace it. Check point 2. Check resistance of indoor fan motor Refer to below.
  • Page 262 5-5. Outdoor unit fan motor ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) → If fan or bearing is abnormal, replace it. Check point 2.
  • Page 263 6. Thermistor resistance values 6-1. Indoor unit ¢ Room temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -10.0 58.25 0.73 -5.0 44.03 0.93 33.62 1.15 25.93 1.39 10.0 20.18 1.66 15.0 15.84 1.94 20.0 12.54 2.22 25.0 10.00 2.50 30.0 8.04 2.77 35.0...
  • Page 264 6-2. Outdoor unit ¢ Discharge temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.06 -25.0 729.09 0.09 -20.0 531.56 0.12 -15.0 392.31 0.16 -10.0 292.91 0.21 -5.0 221.09 0.28 168.60 0.36 129.84 0.46 10.0 100.91 0.57 15.0 79.12 0.71 20.0 62.55...
  • Page 265 ¢ Compressor temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.06 -25.0 729.09 0.09 -20.0 531.56 0.12 -15.0 392.31 0.16 -10.0 292.91 0.21 -5.0 221.09 0.28 168.60 0.36 129.84 0.46 10.0 100.91 0.57 15.0 79.12 0.71 20.0 62.55 0.86 25.0 49.84...
  • Page 266 ¢ Heat exchanger temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 95.57 0.24 -25.0 68.89 0.32 -20.0 50.31 0.43 -15.0 37.19 0.57 -10.0 27.81 0.73 -5.0 21.02 0.92 16.05 1.14 12.38 1.39 10.0 9.63 1.65 15.0 7.56 1.93 20.0 5.98 2.21 25.0...
  • Page 267 ¢ Heat exchanger (Middle) temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 95.57 0.24 -25.0 68.89 0.32 -20.0 50.31 0.43 -15.0 37.19 0.57 -10.0 27.81 0.73 -5.0 21.02 0.92 16.05 1.14 12.38 1.39 10.0 9.63 1.65 15.0 7.56 1.93 20.0 5.98 2.21...
  • Page 268 ¢ 2-way valve thermistor, 3-way valve thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.18 -25.0 729.09 0.25 -20.0 531.56 0.34 -15.0 392.31 0.44 -10.0 292.91 0.58 -5.0 221.09 0.74 168.60 0.93 129.84 1.14 10.0 100.91 1.38 15.0 79.12 1.63 20.0 62.55...
  • Page 269 4. CONTROL AND FUNCTIONS 2024.10.15 SR_CH04_MU003ES_11...
  • Page 270 CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-12 1-3. Dry operation ........................04-13 1-4. Rotation number of compressor at normal start-up ............04-22 1-5. Rotation number of compressor limitation by outdoor temperature ......04-23 2.
  • Page 271 CONTENTS (continued) 8-1. Discharge gas temperature over-rise prevention control ..........04-84 8-2. Anti-freezing control (cooling and dry mode) ..............04-84 8-3. Current release control ....................04-85 8-4. Indoor unit fan motor over temperature protection............04-86 8-5. Compressor temperature protection ................04-87 8-6. High pressure protection ....................04-87 8-7.
  • Page 273 1. Rotation number control of compressor 1-1. Cooling operation A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation rotation number of the compressor. •...
  • Page 274 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone Unit: rps – Model: AOEG18KBCA3 Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone AUXG07–12KVLA C zone D zone...
  • Page 275 ¢ Mini duct type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone Unit: rps...
  • Page 276 ¢ Slim duct type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone Unit: rps...
  • Page 277 ¢ Medium static pressure duct type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone...
  • Page 278 ¢ Wall mounted type (For KGTG) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone...
  • Page 279 ¢ Wall mounted type (For KMTE and KMCG[-B]) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C...
  • Page 280 ¢ Wall mounted type (For KETF[-B]) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone...
  • Page 281 ¢ Wall mounted type (For KNCA) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone...
  • Page 282 ¢ Ceiling type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone Unit: rps –...
  • Page 283 ¢ Floor type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOEG18KBCA3 AOEG24KBCA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone 20°C D zone Unit: rps –...
  • Page 284 1-2. Heating operation A sensor (room temperature thermistor) built in indoor unit body will usually perceive difference or variation between setting temperature and present room temperature, and controls operation rota- tion number of compressor. • If the room temperature is 6.0 °C lower than a set temperature, the operation rotation number of compressor will attain to maximum performance.
  • Page 285 1-3. Dry operation The rotation number of the compressor shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the table below. Zone is defined by set temperature and room temperature. ¢...
  • Page 286 ¢ Mini duct type • Rotation number range of compressor Unit: rps – Model: AOEG18KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–14KSLAP J zone Y zone – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–18KSLAP J zone...
  • Page 287 ¢ Slim duct type • Rotation number range of compressor Unit: rps – Model: AOEG18KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–14KLLAP J zone Y zone – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–18KLLAP J zone...
  • Page 288 ¢ Medium static pressure duct type • Rotation number range of compressor Unit: rps – Model: AOEG18KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXH12–14KMTAP J zone Y zone – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ARXH12–18KMTAP...
  • Page 289 ¢ Wall mounted type (For KGTG) • Rotation number range of compressor Unit: rps – Models: AOEG18KBCA3 and AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ASEH07–14KGTG J zone Y zone • Compressor control based on room temperature Room temperature rises Room temperature drops X zone...
  • Page 290 ¢ Wall mounted type (For KMTE and KMCG[-B]) • Rotation number range of compressor Unit: rps – Model: AOEG18KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ASEH07–14KMCG J zone ASEH07–14KMCG-B Y zone – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number ASEG18KMTE...
  • Page 291 ¢ Wall mounted type (For KETF[-B]) • Rotation number range of compressor Unit: rps – Models: AOEG18KBCA3 and AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ASEG07–14KETF J zone ASEG07–14KETF-B Y zone • Compressor control based on room temperature Room temperature rises Room temperature drops X zone...
  • Page 292 ¢ Wall mounted type (For KNCA) • Rotation number range of compressor Unit: rps – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ASEH05–12KNCA J zone Y zone • Compressor control based on room temperature Room temperature rises Room temperature drops X zone Ts+1.5°C...
  • Page 293 ¢ Ceiling type • Rotation number range of compressor Unit: rps – Model: AOEG24KBCA3 Model name Outdoor temperature zone Operating rotation number X zone ABEG18KRTA J zone Y zone • Compressor control based on room temperature Room temperature rises Room temperature drops X zone Ts+1.5°C Ts+0.5°C...
  • Page 294 1-4. Rotation number of compressor at normal start-up ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 Rotation number of the compressor soon after starting is controlled as below. Rotation number VI Rotation number V Rotation number IV Rotation number III Rotation number II Rotation number I Time 1 Time 2...
  • Page 295 1-5. Rotation number of compressor limitation by outdoor temperature The minimum rotation number of compressor is limited by outdoor temperature as below. • Cooling/Dry mode D zone 38°C C zone 18°C B zone 7°C A zone Unit: rps Limitation of compressor Model name Outdoor temperature zone rotation number...
  • Page 296 2. Auto changeover operation When the air conditioner is set to AUTO mode by remote controller, operation starts in the optimum mode from among heating, cooling, dry and monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set be- tween 18°C and 30°C in 1.0°C steps.
  • Page 297 Operation flow chart Start Ts: Setting temperarure Monitor mode Room temp. > Ts+2°C? Room temp. < Ts-2°C? Middle zone Auto change over is second or more? Operation mode before the monitor mode is cooling mode? Operation mode of Heating operation Cooling operation outdoor unit: Cooling? Thermostat remains...
  • Page 298 3. Fan control Tr: Room temperature Ts: Setting temperature 3-1. Indoor fan control ¢ Compact cassette type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode HIGH MED+ Heating QUIET Cool air prevention S-LOW HIGH Cooling/Fan...
  • Page 299  Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
  • Page 300  Cool air prevention 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 Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops...
  • Page 301 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C or setting fan mode* 37°C 32°C Cool air prevention 30°C 24°C S-LOW 13 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C...
  • Page 302 ¢ Mini duct type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode HIGH 1,100 1,170 1,240 1,500 1,290 1,220 1,060 Heating 1,030 QUIET S-LOW HIGH 1,100 1,170 1,240 1,500 1,290 1,220 1,060 1,030 Cooling/Fan QUIET...
  • Page 303  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 304  Moisture return prevention control (cooling and dry mode) Switch the airflow AUTO at cooling mode, and the indoor fan motor will run as shown below. Compressor Indoor fan setting airflow Indoor fan speed S-LOW 30 (sec) - (04-32) - 3-1.
  • Page 305 ¢ Slim duct type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation Fan mode mode HIGH 1,160 1,260 1,340 1,560 1,380 1,000 1,160 1,240 1,400 1,300 Heating 1,060 1,140 1,240 1,220 QUIET 1,030 1,030 1,140 S-LOW HIGH 1,160...
  • Page 306  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 307  Moisture return prevention control (cooling and dry mode) Switch the airflow AUTO at cooling mode, and the indoor fan motor will run as shown below. Compressor Indoor fan setting airflow Indoor fan speed S-LOW 30 (sec) - (04-35) - 3-1.
  • Page 308 ¢ Medium static pressure duct type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ARXH12KMTAP ARXH14KMTAP ARXH18KMTAP HIGH 1,090 1,230 1,260 1,010 1,080 Heating QUIET S-LOW HIGH 1,090 1,230 1,260 1,010 1,080 Cooling/Fan QUIET Soft quiet...
  • Page 309  Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
  • Page 310  Cool air prevention 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 Indoor heat exchanger Indoor heat exchanger temperature rises temperature drops...
  • Page 311 ¢ Wall mounted type (For KGTG)  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASEH07KGTG ASEH09KGTG ASEH12KGTG ASEH14KGTG POWERFUL 1,200 1,230 1,290 1,330 HIGH 1,130 1,160 1,220 1,260 MED+ 1,040 1,070 1,140 1,160 1,060 1,080...
  • Page 312  Dry operation During dry operation, fan speed setting can not be changed as shown in “Fan speed” above.  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low.
  • Page 313 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C 37°C 32°C Cool air prevention 30°C 28°C S-LOW 13 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH...
  • Page 314 ¢ Wall mounted type (For KMTE and KMCG[-B])  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation Fan mode mode ASEH07KMCG[-B] ASEH09KMCG[-B] ASEH12KMCG[-B] ASEH14KMCG[-B] POWERFUL 1,230 1,270 1,310 1,400 HIGH 1,160 1,200 1,240 1,330 MED+ 1,060 1,060 1,120 1,160...
  • Page 315  Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
  • Page 316 • Normal operation Indoor heat exchanger temperature rises Indoor heat exchanger HIGH temperature drops or setting fan mode* 42°C MED+ 37°C or setting fan mode* 39°C 34°C or setting fan mode* 37°C 32°C Cool air prevention 30°C 28°C S-LOW *: Lower speed is selected. 13 minutes later: Indoor heat exchanger temperature rises...
  • Page 317 • 10 °C HEAT operation Indoor heat exchanger Indoor heat exchanger temperature rises temperature drops AUTO 39°C 34°C  Moisture return prevention control (cooling and dry mode) Switch the airflow AUTO at cooling mode, and the indoor fan motor will run as shown below. Compressor Indoor fan setting airflow...
  • Page 318 ¢ Wall mounted type (For KETF[-B])  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation Fan mode mode ASEG07KETF[-B] ASEG09KETF[-B] ASEG12KETF[-B] ASEG14KETF[-B] POWERFUL 1,210 1,250 1,270 1,360 HIGH 1,140 1,180 1,200 1,290 MED+ 1,040 1,040 1,100 1,160 1,030 1,100...
  • Page 319  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 320 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C 37°C 32°C Cool air prevention 30°C 28°C S-LOW 13 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH...
  • Page 321 ¢ Wall mounted type (For KNCA)  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASEH05KNCA ASEH07KNCA ASEH09KNCA ASEH12KNCA POWERFUL 1,030 1,070 1,150 1,210 HIGH 1,120 1,150 MED+ 1,030 1,030 Heating QUIET Cool air prevention S-LOW POWERFUL...
  • Page 322  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 323  Moisture return prevention control (cooling and dry mode) Switch the airflow AUTO at cooling mode, and the indoor fan motor will run as shown below. Compressor Indoor fan setting airflow Indoor fan speed S-LOW 30 (sec) - (04-51) - 3-1.
  • Page 324 ¢ Ceiling type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation Fan mode mode ABEG18KRTA HIGH MED+ Heating QUIET Cool air prevention S-LOW HIGH Cooling/Fan QUIET Soft quiet 500* S-LOW 300* X zone: 750 J zone: 750 *1: Fan mode only *2: Cooling mode only ...
  • Page 325  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 326 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C or setting fan mode* 37°C 32°C Cool air prevention 30°C 24°C S-LOW 13 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C...
  • Page 327 ¢ Floor type  Fan speed Indoor fan speed is defined as below. • Model: AGEG09KVCA Speed (rpm) Fan mode Operation mode Upper & Lower air flow (Upper/Lower) Upper air flow mode mode POWERFUL 1,230/1,040 1,300/ — HIGH 1,120/950 1,230/ — MED+ 1,000/850 1,090/ —...
  • Page 328 • Model: AGEG14KVCA Speed (rpm) Fan mode Operation mode Upper & Lower air flow (Upper/Lower) Upper air flow mode mode POWERFUL 1,440/1,230 1,440/ — HIGH 1,330/1,120 1,370/ — MED+ 1,140/970 1,180/ — 1,140/970 1,180/ — Heating LOW- 940/800 1,020/ — QUIET 660/560 790/ —...
  • Page 329  Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low. On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of HEAT operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed”...
  • Page 330 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 34°C HIGH 39°C 31°C 37°C 29°C Cool air prevention 30°C 24°C S-LOW 13 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 34°C HIGH...
  • Page 331 3-2. Outdoor fan control ¢ Outdoor fan motor This outdoor unit has a DC fan motor. (Control method is different between AC and DC motors.) ¢ Fan speed  Model: AOEG18KBCA3 Fan speed is defined by outdoor temperature and compressor frequency. Unit: rpm Fan step Cooling or dry...
  • Page 332  Model: AOEG24KBCA3 Fan speed is defined by outdoor temperature and compressor frequency. Unit: rpm Fan step Cooling or dry Heating S-HIGH — 1,200 1,000 — 1,000 — — 1,200 1,100 1,000 • When the compressor frequency increases, the outdoor fan speed also changes to the higher speed.
  • Page 333 4. Louver control 4-1. Horizontal louver control ¢ Wall mounted type Each time the button is pressed, the air direction range will change as below: Side view • Remote controller display is not changed. • Vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.
  • Page 334 ¢ Ceiling type Each time the button is pressed, the air direction range will change as below: • Remote controller display is not changed. • Vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.
  • Page 335 4-2. Vertical louver control ¢ Wall mounted type (For KGTG) Each time the button is pressed, the air direction range will change as below: Front view Remote controller display is not changed. 4-3. Adjust the horizontal louver ¢ Wall mounted type (For KMTE, KMCG[-B], KETF[-B], and KNCA) Move the horizontal louvers to adjust airflow direction you prefer.
  • Page 336 4-4. Individual louver control ¢ Compact cassette type To independently can be set the airflow pattern of each louver as follows: This function is given priority to overall louver control. But this function is release during the following operation. • Cold air prevention control •...
  • Page 337 4-6. Swing operation ¢ Compact cassette type • To select up/down airflow swing operation When the swing signal is received, the horizontal louver starts to swing. – Swinging range • Cooling mode/dry mode/fan mode: 1 ↔ 4 • Heating mode: 1 ↔ 4 –...
  • Page 338 5. Timer operation control 5-1. Wireless remote control ¢ Compact cassette, Mini duct, Slim duct, Medium static pressure duct, Wall mounted (For KGTG, KMCG[-B], and KNCA), and Ceiling types On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ —...
  • Page 339  Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...
  • Page 340 ¢ Wall mounted (For KMTE and KETF[-B]) and Floor types On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ ○  On/Off timer • Off timer: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 341  Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...
  • Page 342 5-2. Wired remote control Temperature On/Off timer Program timer Sleep timer Weekly timer Setback Timer ○ ○ ○ ○ ○ ¢ On/Off timer • Off timer: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 343 ¢ Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...
  • Page 344 ¢ Temperature Setback Timer • The temperature setback timer only changes the set temperature for 7 days, it cannot be used to start or stop air conditioner operation. • The temperature setback timer can be set to operate up to two times per day but only one temperature setting can be used.
  • Page 345 6. Defrost operation control Tn: Outdoor unit heat exchanger temperature Ta: Outdoor temperature Tn10: Temperature at 10 minutes after compressor start Tnb: Temperature before 5 minutes Triggering condition • The defrost operation starts when outdoor unit heat exchanger temperature sensor detects the temperature lower than the values shown below.
  • Page 346 6-1. Defrost operation in heating operation stopped If the outdoor unit is frosted when stopping the heating operation, it stops after performing the auto- matic defrosting operation. In this time, if the indoor unit operation lamp flashes slowly (6 sec on/2 sec off), the outdoor unit al- low the heat exchanger to defrost, and then stop.
  • Page 347 7. Various control 7-1. Auto restart When the power was interrupted by a power failure etc. during operation, the operation contents at that time are memorized and when the power is recovered, operation is automatically started with the memorized operation contents. Compact Wall mounted cassette,...
  • Page 348 7-3. Forced cooling operation The outdoor unit may not operate depending on the room temperature. When FORCED COOLING OPERATION button is pressed more than 10 seconds, forced cooling operation starts as shown in the table below. Operation mode Cooling Fan mode HIGH Timer mode Continuous (no timer setting available)
  • Page 349 7-5. 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 7-6. POWERFUL operation ¢...
  • Page 350 7-8. Compressor preheating operation Compressor preheating operation prevents the damage caused by the refrigerant in the compressor from soaking into the oil. By preheating the compressor, warm airflow is quickly discharged when the operation is started. • Triggering condition – 30 minutes after compressor stopped. –...
  • Page 351 7-11. Drain pump control ¢ Drain control for cooling operation (For Mini duct, Medium static pressure duct, and Ceiling types)  During the compressor in operation • Triggering condition The thermostat is turned on during cooling or dry mode. • Operation details The drain pump is turned on.
  • Page 352  Overflow control • Triggering condition The float switch is turned on. • Operation details – The drain pump is turned on. – When the operation mode is cooling or dry, operate the followings. • The compressor is stopped. • Then indoor fan control is turned off. •...
  • Page 353 ¢ Drain control for defrosting operation (For Compact cassette and Slim duct types)  During cooling or dry mode • When the compressor starts, the drain pump starts simultaneously. • The drain pump operates continuously for 3 minutes after the compressor is turned off. Compressor Drain pump 3 minutes...
  • Page 354  During heating mode or fan mode and when operation is stopped • Triggering condition Drain pump is turned on at the same time that the float switch is turned on. • Operation details When the float switch turns on continuously for 3 minutes, "failure indication" operates. There- after, even if the float switch turns off, the "failure indication"...
  • Page 355 7-14. Human sensor for energy saving(For KGTG series wall mounted and Ceiling types) If no one enters the room for approximately 20 minutes, the set temperature is automatically con- trolled. (When someone comes back into the room, the human sensor detect this, and automatically revert to the original settings.) Operation details (If there is no one in the room for a while)
  • Page 356 8. Various protections 8-1. Discharge gas temperature over-rise prevention control The discharge gas temperature sensor (discharge thermistor: outdoor unit side) detects the dis- charge gas temperature. • When the discharge temperature becomes higher than the trigger condition, the compressor fre- quency is decreased as the table below, and it continues to decrease until the discharge tempera- ture becomes lower than the trigger condition.
  • Page 357 8-3. Current release control The rotation number of compressor is controlled so that the outdoor unit input current does not ex- ceeds current limit value set according to the outdoor temperature. The rotation number of compressor returns according to the operation mode, when the current be- comes lower than the release value.
  • Page 358 8-4. Indoor unit fan motor over temperature protection ¢ Compact cassette, Medium static pressure duct, and Ceiling types When satisfy the following conditions, the protection works. • After the 90 seconds from the fan operation, detect less than 300 rpm for 10 seconds. •...
  • Page 359 8-5. Compressor temperature protection When the compressor temperature sensor detects higher than the trigger condition below, the com- pressor is stopped. When the compressor temperature sensor detects the release condition, the pro- tection is released. Trigger condition 108°C 80°C Release condition (3 minutes after compressor stop) 8-6.
  • Page 360 8-8. High temperature and high pressure release control The compressor is controlled as follows. ¢ Models: AOEG18KBCA3 and AOEG24KBCA3 • Cooling mode Indoor unit heat exchanger Indoor unit heat exchanger temperature rises temperature drops 61°C Zone A 60°C 59°C Zone B 54°C Zone C Zone D...
  • Page 361 5. FIELD WORKING 2024.07.22 SR_CH05_MU003ES_10...
  • Page 362 CONTENTS 5. FIELD WORKING 1. Function settings (for indoor unit).............05-1 1-1. Compact cassette, Mini duct, Slim duct types indoor unit (setting by DIP switch) ..05-1 1-2. Medium static pressure duct type ...................05-3 1-3. Indoor unit (setting by wireless remote controller) ............05-4 1-4.
  • Page 363 1. Function settings (for indoor unit) To adjust the functions of this product according to the installation environment, various types of function settings are available. NOTE: Incorrect settings can cause a product malfunction. 1-1. Compact cassette, Mini duct, Slim duct types indoor unit (setting by DIP switch) By using some components on the PCB, you can change the function settings.
  • Page 364 ¢ DIP switch setting • SW100: Remote controller address setting When operating a number of indoor units by using a wired remote controller, DIP switch set- ting for assigning unit number to each indoor unit is required. The slide switches are normally set to make the unit number 00. Remote Switch number controller...
  • Page 365 1-2. Medium static pressure duct type By using some components on the PCB, you can change the function settings. Related components on the PCB and the applicable settings Component Setting content Drainage function setting Setting change prohibited DIP switch101 Fan delay setting Setting change prohibited ...
  • Page 366 1-3. Indoor unit (setting by wireless remote controller) CAUTION This setting changes the function settings used to control the indoor unit according to the installa- tion conditions. Incorrect settings can cause a product malfunction. • After the power is turned on, perform the “Function setting” according to the installation conditions using the remote controller.
  • Page 367 ¢ AR-REW3E (for Wall mounted type KGTG), AR-REW4E (for Wall mounted type KETF[-B]), AR-REW2E (for Wall mounted type KMTE), and AR-REM7E (for Floor type)  Button name and function During address setting mode, indoor unit reject the any operation command from remote con- troller.
  • Page 368  Function setting procedure Connect the power supply of the outdoor unit. To enter the function setting mode, while holding down the POWERFUL and TEMP. button, press the RESET button. POWERFUL TEMP. ( RESET Function setting mode display Select the function number by pressing the or the buttons.
  • Page 369 Press the MODE button once to transmit the function mode information. Press the button once to transmit the function setting information. 2 short beeps will be emitted from the indoor unit when the signal is received correctly. If wrong code is set, no beep sound will be emitted.
  • Page 370  Resetting the power after setting up all indoor units Important: • If the reset is not performed, function cannot be read correctly. • After all the functions have been set, the circuit breaker needs to be switched off for at least 2 minutes.
  • Page 371  Remote controller custom code setting Custom code setting of wireless remote controller needs to be same as the setting of the indoor unit. When you change the custom code setting of the wireless remote controller, do as follows: Press the START/STOP button until only the clock is displayed on the display. Press the MODE button for at least 5 seconds to display the current custom code (initially set to Press the TEMP.
  • Page 372 ¢ AR-RMB1E(-B) (for Wall mounted type KMCG and KMCG-B)  Button name and function During address setting mode, indoor unit reject the any operation command from remote con- troller. Function number Refer to Function details. Setting number Refer to Function details. 10°C HEAT button POWERFUL button Changes the displayed digits.
  • Page 373  Function setting procedure Connect the power supply of the outdoor unit. To enter the function setting mode, while holding down the POWERFUL and SET TEMP. buttons, press the RESET button. POWERFUL SET TEMP. ( RESET Function setting mode display Select the function number by pressing the or the buttons.
  • Page 374 Press the MODE button once to transmit the function mode information. 2 short beeps Press the button once to transmit the function setting information. 2 short beeps will be emitted from the indoor unit when the signal is received correctly. If wrong code is set, no beep sound will be emitted.
  • Page 375  Resetting the power after setting up all indoor units Important: • If the reset is not performed, function cannot be read correctly. • After all the functions have been set, the circuit breaker needs to be switched off for at least 2 minutes.
  • Page 376  Remote controller custom code setting Custom code setting of wireless remote controller needs to be same as the setting of the indoor unit. When you change the custom code setting of the wireless remote controller, do as follows: Press the START/STOP button until only the clock is displayed on the display. Press the MODE button for at least 5 seconds to display the current custom code (initially set to Press the SET TEMP.
  • Page 377 ¢ UTY-LNTY (for Compact cassette type) or AR-REJ1E (included in UTY-LBTYM for Duct type, UTY-LBTYH for Ceiling type)  Button name and function During address setting mode, indoor unit reject the any operation command from remote con- troller. Function number Refer to Function details.
  • Page 378  Function setting procedure Connect the power supply of the outdoor unit. To enter the function setting mode, while holding down the ECONOMY and SET TEMP. buttons, press the RESET button. ECONOMY SET TEMP. ( RESET Function setting mode display - (05-16) - 1-3.
  • Page 379 Select the function number by pressing the or the buttons. Each time the 10°C HEAT button is pressed, it switches between the right digit and the left digit. Change digit Change digit Proceed to the setting number by pressing the ECONOMY button. (To return to the function number selection, press the ECONOMY button again.) Select the function number by pressing the or the...
  • Page 380 Press the button once to transmit the function setting information. 1 short beep will be emit- ted from the indoor unit or the IR receiver when the signal is received correctly. If wrong code is set, no beep sound will be emitted. 1 short beep NOTE: Press button within 30 seconds after pressing MODE button.
  • Page 381  Resetting the power after setting up all indoor units Important: • If the reset is not performed, function cannot be read correctly. • After all the functions have been set, the circuit breaker needs to be switched off for at least 2 minutes.
  • Page 382  Remote controller custom code setting Custom code setting of wireless remote controller needs to be same as the setting of the indoor unit. When you change the custom code setting of the wireless remote controller, do as follows: Press the START/STOP button until only the clock is displayed on the display. Press the MODE button for at least 5 seconds to display the current custom code (initially set to Press the SET TEMP.
  • Page 383 ¢ AR-RPF4E (for Wall mounted type KNCA) The function number and the associated setting value are displayed on the LCD of the remote con- troller. Follow the instructions written in the local setup procedure supplied with the remote controller, and select appropriate setting according to the installation environment. Before connecting the power supply of the indoor unit, reconfirm following items: •...
  • Page 384 STEP 2: Selecting the function number and setting value 1. Press the TEMP./SELECT ( ) buttons to select the function Function number number. To switch between the left and right digits, press the MODE button. 2. Press the FAN SPEED button to proceed the setting value. To re- turn the function number selection, press the FAN SPEED button again.
  • Page 385  Custom code setting on AR-RPF4E To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a signal if the air conditioner has not been set for the custom code.
  • Page 386 1-4. Indoor unit (setting by wired remote controller) • The function settings of the control of the indoor unit can be changed by this procedure according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. • After the power is turned on, perform the “Function setting” according to the installation conditions using the remote controller.
  • Page 387 ¢ UTY-RNNYM  Button name and function During address setting mode, indoor unit reject the any operation command from remote controller. Function number Refer to Function details Remote controller address Setting number Refer to Function details Λ SET TEMP. “V” and “ ”...
  • Page 388 Confirm the setting by pressing the TIMER SET button. The data will be transferred to the indoor unit. Not good Good ● Data is not set up on the indoor unit Data is correctly set up on the indoor unit correctly (-- is displayed.) (Flashing display changes to illuminated display.) ●...
  • Page 389 ¢ UTY-RLRY  Setting procedure by using wired remote controller The function number and the associated setting value are displayed on the LCD of the remote con- troller. Follow the instructions written in the local setup procedure supplied with the remote controller, and select appropriate setting according to the installation environment.
  • Page 390 Pressing the "+" or "-" button, to select the function number. Then press the "ENTER" button. Function number Pressing the "+" or "-" button, to select the setting number. Then press the "ENTER" button. Setting number Example: Function number 30 Setting number 01 Error Good...
  • Page 391 ¢ UTY-RVNYM  Function setting procedure Connect the power supply of the outdoor unit. Switch to the function setting mode. When [Menu button] is pressed twice while “Monitor” screen is displayed, it switches to the “Submenu” screen. If [Menu button] is pressed while the “Submenu” screen is displayed, the display returns to the “Monitor”...
  • Page 392 Select the [Function No.] with pressing the [Cursor button (Left/Right)], and select the Function No. to be set with pressing the [Cursor button (Up/Down)]. Function setting Mo 10:00AM R.C. Function Setting address Cancel: Version Error history Select the [Setting No.] with pressing the [Cursor button (Left/Right)], and select the Setting No. to be set with pressing the [Cursor button (Up/Down)].
  • Page 393 When [Cancel button] is pressed twice while “Function setting” screen is displayed, it switches to the “Submenu” screen. Function setting Mo 10:00AM R.C. Function Setting Submenu Mo 10:00AM address Date and time Screen Cancel: Filter sign Version Error history R.C. sensor control Room temp.
  • Page 394 ¢ UTY-RNRYZ*  Setting procedure by using wired remote controller The function number and the associated setting value are displayed on the LCD of the remote con- troller. Follow the instructions written in the local setup procedure supplied with the remote controller, and select appropriate setting according to the installation environment.
  • Page 395 “Function No.” screen is displayed. Set the “Function No.” with Function No. Cancel When the “OK” is touched, the display returns to the “Function Setting” screen. Touch the “Function No.” on the “Function Setting” screen. Function Setting Address [002–01] Function No. [30] Setting No.
  • Page 396 Touch the “Yes” of the verification screen. Function Setting Function setting will be performed. OK? In case of “ERROR” In case of “OK” Function Setting Function Setting Address [002–01] Address [002–01] Function No. [30] Function No. [30] Setting No. [01] Setting No.
  • Page 397 ¢ UTY-RVRY  Function setting procedure Tap the menu as shown below. Enter the Admin password. Enter the Installer password. Tap “Address” on the Function Setting screen. Pull-down window of indoor unit address is displayed. Select the address of the indoor unit whose function number is to be set.
  • Page 398 Pull-down window of Function No. is displayed. Set the Function No to be set. Tap “Setting No.” on the Function Setting screen. Pull-down window of “Setting No.” is displayed. Set the Setting No. Tap “Set” on the verification screen. to return to the Initial Setting screen. - (05-36) - 1-4.
  • Page 399 1-5. Indoor unit (setting by simple remote controller) • The function settings of the control of the indoor unit can be changed by this procedure according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. • After the power is turned on, perform the “Function setting” according to the installation conditions using the remote controller.
  • Page 400 ¢ UTY-RSNYM  Button name and function During address setting mode, indoor unit reject the any operation command from remote controller. Function number Setting number Refer to Function details Refer to Function details Remote controller address START/STOP button Transmits function setting FAN button SET TEMP.
  • Page 401 Select the setting number by pressing the SET TEMP. or SET TEMP. button. The setting number indicator flashes during setting number selection. Setting number Example) Function number : 30, Setting number : 01 Confirm the setting by pressing the TIMER SET button. The data will be transferred to the indoor unit.
  • Page 402  Resetting the power after setting up function of all indoor units NOTES: • If the reset is not performed, function cannot be read correctly. • After all the functions have been set, the circuit breaker needs to be switched off for at least 2 minutes.
  • Page 403 ¢ UTY-RSRY/UTY-RHRY  Setting procedure by using wired remote controller The function number and the associated setting value are displayed on the LCD of the remote con- troller. Follow the instructions written in the local setup procedure supplied with the remote controller, and select appropriate setting according to the installation environment.
  • Page 404 Select the item number to be set with the SET TEMP. or SET TEMP. button, and press button to switch to the setting screen. Select the “13” in Menu 2-F1 settings. Then, press the button. Select the 2-wire remote controller address with the SET TEMP. or SET TEMP.
  • Page 405 Press the button to return to the 2-wire remote controller address selection screen of step 9. If setting has been completed, press the FAN button to return to the Menu 2-F1 item selec- tion screen.  Setting up each indoor unit Repeat the procedure from step 1 to 6, and set up the indoor units requiring function setting.
  • Page 406 1-6. Function details ¢ Contents of function setting Each function setting listed in this section is adjustable in accordance with the installation environ- ment. NOTE: Setting will not be changed if invalid numbers or setting values are selected.  Function setting list Medium Function Compact...
  • Page 407 Wall mounted Functio Functions KETF n no. KMCG(-B) KGTG KNCA KMTE (-B) Remote controller address setting Filter sign ● ● ● ● ● Ceiling height — — — — — Outlet directions — — — — — Static pressure — —...
  • Page 408 1) Remote controller address setting (for Wall-mounted type only) NOTES: • Because this setting is normally done automatically when 2-wire-type wired remote controller is installed, setting is unnecessary. • This setting is configurable only by wireless remote controller, but not configurable by Polar 3- wired remote controller.
  • Page 409 3) Ceiling height (for Compact cassette type and Ceiling type only) Select the appropriate ceiling height according to the place of installation. Function number Setting value Setting description Factory setting Standard ♦ High ceiling For the specific height for each setting value, refer to “Installation space” in Chapter 2. "Dimensions"...
  • Page 410 5) Static pressure (for Mini duct type, Slim duct type, and Medium static pressure duct type) Select the appropriate static pressure according to the installation conditions. For mini duct type: Function number Setting value Setting description Factory setting 0 Pa 10 Pa 20 Pa 30 Pa...
  • Page 411 6) Horizontal louver direction switching for dew condensation prevention (for Ceiling type on- Automatically switches the position of the horizontal louver if the airflow direction is set at lower than the dew condensation limit position in cooling or drying operation. Select suitable adjustment position according to the customer’s preference.
  • Page 412 8) Room temperature control for wired remote controller sensor (for other than Floor type and KN models in Wall-mounted type) Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to Both “01”.
  • Page 413 11) Remote controller custom code (Only for wireless remote controller) The indoor unit custom code can be changed. Select the appropriate custom code. Function number Setting value Setting description Factory setting ♦ 12) External input control “Operation/Stop” mode or “Forced stop” mode can be selected. Function number Setting value Setting description...
  • Page 414 15) Switching functions for external output terminal (For other than KETA[-B] and KN models in Wall-mounted type) Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦...
  • Page 415 1-7. Wired remote controller (UTY-RNNYM) Prohibited Dual remote controller setting Prohibited DIP switch 1 °F/°C switch Prohibited Memory backup setting * Do not use DIP switch 2. ¢ Switch location Front case (back side) DIP switch 2 DIP switch 1 ¢...
  • Page 416  SW6: Memory backup setting Set to “ON” to use batteries for the memory backup. When batteries are not used, all of settings stored in memory will be deleted if there is a power failure. Memory backup Factory setting Disable ♦...
  • Page 417 1-8. Wired remote controller (UTY-RVNYM) Memory backup setting DIP switch 1 Dual remote controller setting ¢ Switch location ¢ DIP switch setting  SW1: Memory backup setting Set to “ON” to use batteries for the memory backup. When batteries are not used, all of settings stored in memory will be deleted if there is a power failure.
  • Page 418 1-9. Wired remote controller (UTY-RLRY) DIP switch Memory backup setting ¢ Switch location Front case (back side) Set the DIP switch to ON ¢ Dip switch setting  SW1: Memory backup setting Set to “ON” to use batteries for the memory backup. When batteries are not used, all of settings stored in memory will be deleted if there is a power failure.
  • Page 419 1-11. Simple remote controller (UTY-RSNYM) Prohibited Dual remote controller setting °F/°C switch DIP switch Prohibited Prohibited Prohibited ¢ Switch location DIP Switch ¢ DIP switch setting  SW2: Dual remote controller setting Set the remote controller SW2 according to the following table. Primary unit Secondary unit Number of remote controller...
  • Page 420 2. Function settings (for outdoor 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. 2-1.
  • Page 421 ¢ Setting method Various settings can be adjusted by changing DIP switches and push switches on the PCB of the outdoor unit. LED display part POWER MONITOR ERROR /MODE ( GRN ) ( RED ) TEST RUN / SET 1 SET 2 CHECK PUMP DOWN...
  • Page 422 ¢ Description of display LED lamp Function or operation method • Turns on when the power supply is ON (Including when error occurs). (1) POWER/MODE Green • Indicate the MODE by the number of flashes when the installation function is active. (2) ERROR Flashes at high-speed when there is an error.
  • Page 423 2-2. Outdoor unit low noise operation function Change the outdoor unit low noise operation by using this setting. 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- SET1-4 Setting Factory setting...
  • Page 424 3. Check and test 3-1. Check run • The check run is a function to screen and detect any wiring errors. • After carrying out the check run, you can use the automatic wiring correction function to correct the wiring. •...
  • Page 425 ¢ Operating procedure for check run CAUTION Initiate check run after more than 12 hours after the power supply is connected. NOTE: Be sure that the indoor unit and outdoor unit are not operating before starting the check run. Press the CHECK switch for 3 seconds or more. CHECK The number of indoor units (and the places) connected through the communication lines is dis- played.
  • Page 426 After the check run is completed, results will be displayed. Fill the displayed results in the result table accordingly. • If the connection is correct (Example: When 4 indoor units are connected) After the number of connected units are displayed, the LED for each unit will light up in order from A to D.
  • Page 427 [How to record the contents] • Fill the displayed results according to the following example. Example: When piping A to D is connected but the wires for B and C are connected in reverse. <Displayed results> The LEDs will light up in 7 second intervals in the following order. POWER MONITOR ERROR...
  • Page 428 c. Select the correction method. Correct the wiring manually.*2 Proceed to step 6. Use the Automatic wiring correction function.*1 Proceed to step 5. Write down the same results in the label on the reverse side of the service panel. The results recorded are needed at the time of servicing. <Result Table>...
  • Page 429 ¢ Failure indication of check-run judgment The check run stops when there is an error, and the LED shows the relevant error indication. When you encounter the errors described here, perform checking by using the cooling test run of the indoor unit.
  • Page 430 3-2. Test run CAUTION Always connect the power supply 12 hours prior to the start of the operation in order to protect the compressor. 1. Indoor unit a. Is the drain normal? b. Is there any abnormal noise and vibration during operation? 2.
  • Page 431 3-3. Error code If an error occurs, the LED lights to inform the relevant location and the code. When error occurs, the error LED blinks at high speed. POWER ERROR MONITOR /MODE ( GRN ) ( RED ) blink (High speed) ¢...
  • Page 432 ¢ Error code display While the error is occurring, briefly push the SW1. The error code is displayed. Example: Coil error (Error cord = 9A.1) POWER MONITOR ERROR /MODE ( GRN ) ( RED ) [A(10)] Blink (High speed) (9-blink) Display mode LED on: Blink:...
  • Page 433 Error code Error type 11.3 Serial communication error 11.4 Serial communication error during operation 16.5 Communication error between controller and outdoor unit 22.1 Indoor unit capacity error 23.1 Connection prohibited (Series error) 5U.1 Indoor unit error 62.1 PCB model information error 62.3 EEPROM access error 62.8...
  • Page 434 3-4. Pump down WARNING During the pump down operation, make sure that compressor is off before you remove the refriger- ant pipe. Do not remove the connection pipe while the compressor is in operation with valve open. This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury. ¢...
  • Page 435 7. Disconnect the power supply or turn off the breaker. NOTE: • Even if the pump down operation is not stopped by pushing the switch as in step 6, the operation stops automatically after 15 minutes, and the LED light as fol- lows.

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