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Fujitsu ASYG07-14KGTF Service Manual

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Table of Contents

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AIR CONDITIONER
3-unit multi-split type
INDOOR
ASYG07–14KGTE
ASYG07–14KGTF
ABYG18KRTA
AGYG09–14KVCA
SERVICE MANUAL
AUXG07–18KVLA
ARXG07–14KSLAP
ASYG18KMTB
ASYG07–14KMTB
ASYG18KMTE
ASYG07–14KMCC
ASYG07–14KMCE
ASYG07–14KMCF
ARXG07–14KLLAP
ARXG18KSLAP
ARXG18KLLAP
ASYG07–14KETA
ASYG07–14KETE
ASYG07–14KETF
OUTDOOR
ASYG07–14KGTB
ASYG07–14KETA-B
ASYG07–14KETE-B
ASYG07–14KETF-B
AOYG18KBTA3
AOYG24KBTA3
SR_MU003EF_14
2023.03.17

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Summary of Contents for Fujitsu ASYG07-14KGTF

  • Page 1 AIR CONDITIONER 3-unit multi-split type SERVICE MANUAL INDOOR AUXG07–18KVLA ARXG07–14KSLAP ARXG07–14KLLAP ASYG07–14KGTB ARXG18KSLAP ARXG18KLLAP ASYG07–14KGTE ASYG18KMTB ASYG07–14KMTB ASYG07–14KETA ASYG07–14KETA-B ASYG07–14KGTF ASYG18KMTE ASYG07–14KMCC ASYG07–14KETE ASYG07–14KETE-B ASYG07–14KMCE ASYG07–14KETF ASYG07–14KETF-B ASYG07–14KMCF OUTDOOR ABYG18KRTA AGYG09–14KVCA AOYG18KBTA3 AOYG24KBTA3 SR_MU003EF_14 2023.03.17...
  • 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. FILED WORKING...
  • Page 5 1. GENERAL INFORMATION 2023.03.17 SR_CH01_MU003EF_07...
  • Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-21 2. Dimensions....................01-23 2-1. Compact cassette type ....................01-23 2-2. Mini duct type .......................01-25 2-3. Slim duct type .......................01-28 2-4. Wall mounted type......................01-31 2-5. Ceiling type........................01-45 2-6. Floor type ........................01-47 2-7.
  • 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 ¢ Wall mounted type Model name ASYG07KGTB ASYG09KGTB ASYG12KGTB ASYG14KGTB 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 0.29 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type ×...
  • Page 14 Model name ASYG07KGTE ASYG09KGTE ASYG12KGTE ASYG14KGTE 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 0.29 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Crossflow fan ×...
  • Page 15 Model name ASYG07KGTF ASYG09KGTF ASYG12KGTF ASYG14KGTF 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 0.29 HIGH Cooling QUIET Airflow rate HIGH Heating QUIET Type × Qty Crossflow fan ×...
  • Page 16 Model name ASYG18KMTB 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 17 Model name ASYG18KMTE 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 18 Model name ASYG07KMTB ASYG09KMTB ASYG12KMTB ASYG14KMTB 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 × Qty Crossflow fan ×...
  • Page 19 Model name ASYG07KMCC ASYG09KMCC ASYG12KMCC ASYG14KMCC 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 × Qty Crossflow fan ×...
  • Page 20 Model name ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE 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 × Qty Crossflow fan ×...
  • Page 21 Model name ASYG07KMCF ASYG09KMCF ASYG12KMCF ASYG14KMCF 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 × Qty Crossflow fan ×...
  • Page 22 ASYG07KETA ASYG09KETA ASYG12KETA ASYG14KETA Model name ASYG07KETA-B ASYG09KETA-B ASYG12KETA-B ASYG14KETA-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 23 ASYG07KETE ASYG09KETE ASYG12KETE ASYG14KETE Model name ASYG07KETE-B ASYG09KETE-B ASYG12KETE-B ASYG14KETE-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 24 ASYG07KETF ASYG09KETF ASYG12KETF ASYG14KETF Model name ASYG07KETF-B ASYG09KETF-B ASYG12KETF-B ASYG14KETF-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 25 ¢ Ceiling type Model name ABYG18KRTA 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 26 ¢ Floor type Model name AGYG09KVCA AGYG12KVCA AGYG14KVCA 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 27 1-2. Outdoor unit Type Inverter heat pump Model name AOYG18KBTA3 AOYG24KBTA3 Power source 230 V 50 Hz Available voltage range 198—264V Wall mounted Wall mounted ASYG07KMCC Standard combination of indoor unit ASYG07KMCC ×3 ASYG09KMCC ×2 Rated Btu/h 18,400 23,200 Cooling 1.8—7 1.8—8.5 Min.—Max.
  • Page 28 Specifications for ErP Lot10 Model name AOYG18KBTA3 AOYG24KBTA3 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 29 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 - (01-23) - 2-1. Compact cassette type 2. Dimensions...
  • Page 30  Installation space requirement Unit: mm Strong and durable ceiling or more 1,000 1,000 or more or more 1,800 or more Obstruction Floor Maximum height from floor to ceiling (Unit: mm) 07 and 09 models 12 or larger models Standard 2,700 High ceiling —...
  • Page 31 2-2. Mini duct type ¢ Models: ARXG07–14KSLAP Unit: mm Rear view View A Drain port P 100 × 6 = 600 Top view Side view Front view Bottom view - (01-25) - 2-2. Mini duct type 2. Dimensions...
  • Page 32 ¢ Model: ARXG18KSLAP Unit: mm Rear view View A Drain port P 100 × 8 = 800 Top view Side view Front view Bottom view - (01-26) - 2-2. Mini duct type 2. Dimensions...
  • Page 33  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 34 2-3. Slim duct type ¢ Models: ARXG07–14KLLAP Unit: mm View A Rear view Drain port 100 x 6 = 600 Side view Top view Front view Bottom view - (01-28) - 2-3. Slim duct type 2. Dimensions...
  • Page 35 ¢ Model: ARXG18KLLAP Unit: mm Rear view View A Drain port 100 × 8 = 800 Top view Side view Front view Bottom view - (01-29) - 2-3. Slim duct type 2. Dimensions...
  • Page 36  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 37 2-4. Wall mounted type ¢ Models: ASYG07–14KGTB Unit: mm 373.5 417.5 Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-31) - 2-4. Wall mounted type 2. Dimensions...
  • Page 38  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 70 or more 40 or more Wall hook bracket Outline of the indoor unit 107 or more 183 or more 1,500 or more A: Install so that the flare connection part is outdoors. - (01-32) - 2-4.
  • Page 39 ¢ Models: ASYG07–14KGTE and ASYG07–14KGTF Unit: mm 373.5 417.5 (834) Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-33) - 2-4. Wall mounted type 2. Dimensions...
  • Page 40  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. - (01-34) - 2-4.
  • Page 41 ¢ Model: ASYG18KMTB Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-35) - 2-4. Wall mounted type 2. Dimensions...
  • Page 42  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more Wall hook bracket 70 or more Outline of the indoor unit 160 or more 117 or more 1,500 or more A: Install so that the flare connection part is outdoors. - (01-36) - 2-4.
  • Page 43 ¢ Model: ASYG18KMTE Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-37) - 2-4. Wall mounted type 2. Dimensions...
  • Page 44  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. - (01-38) - 2-4.
  • Page 45 ¢ Models: ASYG07–14KMTB and ASYG07–14KMCC Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-39) - 2-4. Wall mounted type 2. Dimensions...
  • Page 46  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 70 or more 40 or more Wall hook bracket Outline of the indoor unit 107 or more 183 or more 1,500 or more A: Install so that the flare connection part is outdoors. - (01-40) - 2-4.
  • Page 47 ¢ Models: ASYG07–14KMCE and ASYG07–14KMCF Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-41) - 2-4. Wall mounted type 2. Dimensions...
  • Page 48  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. - (01-42) - 2-4.
  • Page 49 ¢ Models: ASYG07–14KETA, ASYG07–14KETA-B, ASYG07– 14KETE, ASYG07–14KETE-B, ASYG07–14KETF, and ASYG07– 14KETF-B Unit: mm 373.5 417.5 (950) Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-43) - 2-4. Wall mounted type 2. Dimensions...
  • Page 50  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 51 2-5. Ceiling type ¢ Model: ABYG18KRTA 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 - (01-45) - 2-5.
  • Page 52 ¢ 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 (m) Ceiling mode Standard High ceiling 18 model...
  • Page 53 2-6. Floor type ¢ Models: AGYG09–14KVCA Unit: mm Side view Front view - (01-47) - 2-6. Floor type 2. Dimensions...
  • Page 54  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 55 2-7. Outdoor unit ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 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) - (01-49) - 2-7. Outdoor unit 2.
  • Page 56 - (01-50) - 2-7. Outdoor unit 2. Dimensions...
  • Page 57 2. TECHNICAL DATA AND PARTS LIST 2023.03.17 SR_CH02_MU003EF_13...
  • Page 58 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Cassette grille (optional part) parts list.............02-2 2-1. Model: UTG-UFYF-W .....................02-2 3. Indoor unit parts list..................02-4 3-1. Compact cassette type ....................02-4 3-2. Mini duct type .........................02-9 3-3. Slim duct type .......................02-16 3-4.
  • Page 59 CONTENTS (continued) 9-9. Models: ASYG07–14KMTB ..................02-146 9-10. Models: ASYG07–14KMCC ..................02-147 9-11. Models: ASYG07–14KMCE..................02-148 9-12. Models: ASYG07–14KMCF..................02-149 9-13. Models: ASYG07–14KETA and ASYG07–14KETA-B ..........02-150 9-14. Models: ASYG07–14KETE and ASYG07–14KETE-B ..........02-151 9-15. Models: ASYG07–14KETF and ASYG07–14KETF-B ..........02-152 9-16. Model: ABYG18KRTA ....................02-153 9-17. Models: AGYG09–14KVCA..................02-154 9-18.
  • Page 61 • 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 62 2. Cassette grille (optional part) parts list 2-1. Model: UTG-UFYF-W ¢ Overall - (02-2) - 2-1. Model: UTG-UFYF-W 2. Cassette grille (optional part) parts list...
  • Page 63 Item no. Part no. Part name Service part 9377760043 Flap total assy ♦ 9377759047 Flap assy B ♦ 9375727048 Flap assy A ♦ 9375539016 Joint B ♦ 9375540012 Joint shaft ♦ 9375746018 Motor holder assy B ♦ 9900139087 Step motor (with Red connector) ♦...
  • Page 64 3. Indoor unit parts list 3-1. Compact cassette type ¢ Models: AUXG07–18KVLA Item no. Part no. Part name Service part 9379665001 Drain hose ♦ 9379757010 Hose band ♦ 9900942038 Pipe thermistor ♦ 9900826000 Room thermistor ♦ - (02-4) - 3-1. Compact cassette type 3.
  • Page 65 Item no. Part no. Part name Service part 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) ♦...
  • Page 66 Wire holder Item no. Part no. Part name Service part 9375516017 Wire cover ♦ 9375515010 Pipe cover ♦ 9375503017 Bell-mouth hood ♦ 9375477011 Thermistor holder ♦ 9377765024 Drain pan sub assy (For 18 model) ♦ 9375718015 Drain port sub assy ♦...
  • Page 67 Separate wall Evaporator holder 2 row Item no. Part no. Part name Service part 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) ♦...
  • Page 68 Top plate assy Motor wire holder Cabinet A sub assy Cabinet B sub assy Turbo fan washer Item no. Part no. Part name Service part 9375719012 Fan motor sub assy ♦ 9602436019 Fan motor ♦ 9375480011 2 stage turbo fan assy ♦...
  • Page 69 3-2. Mini duct type ¢ Models: ARXG07–14KSLAP Item no. Part no. Part name Service part 9710661020 Power supply PCB ♦ 9710624261 Main PCB (For 07 model) ♦ 9710624278 Main PCB (For 09 model) ♦ 9710624285 Main PCB (For 12 model) ♦...
  • Page 70 Main Panel (2 Fan) Item no. Part no. Part name Service part 9381930111 Drain pan sub assy ♦ 9381933440 Evaporator total assy ♦ 9900472061 Pump assy ♦ 9900465063 Float switch ♦ 9378450097 Hose sub assy ♦ - (02-10) - 3-2. Mini duct type 3.
  • Page 71 Item no. Part no. Part name Service part 9379570015 Sirocco fan assy ♦ 9381673001 Rubber (Vibration proof) ♦ 9381676002 Casing B ♦ 9381677016 Casing U ♦ 9380636038 Fan motor assy (For 07 model) ♦ 9379574006 Air filter ♦ 9381675005 Motor bracket assy ♦...
  • Page 72 ¢ Model: ARXG18KSLAP  Chassis - (02-12) - 3-2. Mini duct type 3. Indoor unit parts list...
  • Page 73 Item no. Part no. Part name Service part 9379971065 Sirroco fan sub assy ♦ 9383443008 Rubber vibration proof assy ♦ 9379570022 Sirroco fan assy ♦ 9381676002 Casing B ♦ 9379047128 Motor band L ♦ 9381669004 Motor band L ♦ 9381670000 Motor band R ♦...
  • Page 74  Inverter unit - (02-14) - 3-2. Mini duct type 3. Indoor unit parts list...
  • Page 75 Item no. Part no. Part name Service part 9710624315 Main PCB ♦ 9710019005 2way remote PCB ♦ 9900896003 Terminal (remote control) ♦ 9900568009 Terminal (power) ♦ 9710661020 Power PCB ♦ Wire with connector — 9710177057 ♦ (CN46—External input) Wire with connector —...
  • Page 76 3-3. Slim duct type ¢ Models: ARXG07–14KLLAP Item no. Part no. Part name Service part 9379906012 Side panel R sub assy ♦ 9379907019 Side panel L sub assy ♦ 9379900003 Pipe panel sub assy ♦ 9379915007 Panel (Window) sub assy ♦...
  • Page 77 Item no. Part no. Part name Service part 9379908030 Total panel sub assy ♦ 9379570015 Sirocco fan assy ♦ 9379644006 Rubber (Vibration proof) ♦ 9379572019 Casing B ♦ 9379571012 Casing U ♦ 9379047166 Fan motor assy (For 07 model) ♦ 9379047159 Fan motor assy (For 09, 12, 14 model) ♦...
  • Page 78 Item no. Part no. Part name Service part 9710661006 Power supply PCB ♦ 9710624308 Main PCB (For 07 model) ♦ 9710624209 Main PCB (For 09 model) ♦ 9710624216 Main PCB (For 12 model) ♦ 9710624148 Main PCB (For 14 model) ♦...
  • Page 79 ¢ Model: ARXG18KLLAP Item no. Part no. Part name Service part 9379906012 Side panel R sub assy ♦ 9379907019 Side panel L sub assy ♦ 9379900003 Pipe panel sub assy ♦ 9379915007 Panel (Window) sub assy ♦ 9380042013 Outlet frame assy ♦...
  • Page 80 Item no. Part no. Part name Service part 9379908047 Total panel sub assy ♦ 9379570022 Sirocco fan assy ♦ 9379570039 Sirocco fan assy ♦ 9381052004 Shaft assy ♦ 9378038011 Joint assy ♦ 9379644006 Rubber (Vibration proof) ♦ 9379572019 Casing B ♦...
  • Page 81 Item no. Part no. Part name Service part 9710661006 Power supply PCB ♦ 9710624131 Main PCB ♦ 9710019005 2-way remote PCB ♦ 9900568009 Terminal 3P ♦ 9900896003 Terminal 3P (For wired remote controller) ♦ — 9900653019 Room thermistor ♦ — 9900942045 Pipe thermistor ♦...
  • Page 82 3-4. Wall mounted type ¢ Models: ASYG07–14KGTB  Exterior parts and chassis Item no. Part no. Part name Service part 9382108045 Remote control ♦ 9318912005 Remote control holder ♦ 9387480009 Bracket panel ♦ 9332911008 Electric filter holder ♦ 9317250009 Air clean filter assy ♦...
  • Page 83 Wire cover assy Item no. Part no. Part name Service part 9387476002 Screw cover ♦ 9387477009 Under cover L ♦ 9387478006 Under cover R ♦ 9387596007 Front panel total assy ♦ - (02-23) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 84 Front panel Frontpanel cover Panel cover Front panel B Item no. Part no. Part name Service part 9387473001 Air filter ♦ 9387756005 Intake grille assy ♦ 9333719009 Grille clamper L ♦ 9333704005 Grille clamper R ♦ - (02-24) - 3-4. Wall mounted type 3.
  • Page 85 Item no. Part no. Part name Service part 9387479003 Horizontal louver assy ♦ 9332861006 Shaft cover ♦ 9387471007 Louver spring ♦ - (02-25) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 86 Control cover Item no. Part no. Part name Service part 9387467000 Room Thermistor Holder ♦ 9900627041 Thermistor Assy ♦ - (02-26) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 87  Control box WLAN holder holder A Box shield Control box Display case assy Front panel cover B assy Item no. Part no. Part name Service part 9710782411 Main PCB (for 07 model) ♦ 9710782428 Main PCB (for 09 model) ♦...
  • Page 88  Evaporator Motor case Motor cover assy Step motor holder assy Cable guide Step motor holder Item no. Part no. Part name Service part 9387593143 Evaporator total assy (for 07, 09, 12 model) ♦ 9387593150 Evaporator total assy (for 14 model) ♦...
  • Page 89 ¢ Models: ASYG07–14KGTE  Exterior parts - (02-29) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 90 Item no. Part no. Part name Service part 9388142005 Bracket panel ♦ 9387714036 Stepping motor holder assy ♦ 9901011047 Stepping motor ♦ 9333608006 Bush ♦ 9332861006 Shaft cover ♦ 9387590241 Drain pan total assy ♦ 9387476002 Screw cover ♦ 9387479003 Horizontal louver assy ♦...
  • Page 91  Base, evaporator, and control - (02-31) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 92 Item no. Part no. Part name Service part 9387587128 Base assy ♦ 9388139005 Pipe bracket A ♦ 9388138008 Under cover C ♦ 9388182001 Screw cover ♦ 9383765056 WLAN adapter holder assy ♦ 9711732255 Main PCB (07 model) ♦ 9711732262 Main PCB (09 model) ♦...
  • Page 93 ¢ Models: ASYG07–14KGTF  Exterior parts - (02-33) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 94 Item no. Part no. Part name Service part 9388142005 Bracket panel ♦ 9387714036 Stepping motor holder assy ♦ 9901011047 Stepping motor ♦ 9333608006 Bush ♦ 9332861006 Shaft cover ♦ 9387590241 Drain pan total assy ♦ 9387476002 Screw cover ♦ 9387479003 Horizontal louver assy ♦...
  • Page 95  Base, evaporator, and control - (02-35) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 96 Item no. Part no. Part name Service part 9387587128 Base assy ♦ 9388139005 Pipe bracket A ♦ 9388138008 Under cover C ♦ 9388182001 Screw cover ♦ 9383765056 WLAN adapter holder assy ♦ 9384563040 Wireless LAN adapter ♦ 9711732255 Main PCB (07 model) ♦...
  • Page 97 ¢ Model: ASYG18KMTB Item no. Part no. Part name Service part 9383712012 Remote controller ♦ 9318912005 Remote controller holder ♦ 9323351004 Bracket panel ♦ 9332911008 Electric filter holder ♦ 9317250009 Air clean filter assy ♦ - (02-37) - 3-4. Wall mounted type 3.
  • Page 98 Item no. Part no. Part name Service part 9387476002 Screw cover ♦ 9323341012 Under cover L ♦ 9323342019 Under cover R ♦ 9387596618 Front panel total assy ♦ - (02-38) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 99 Front panel total assy Front panel B Front panel Panel cover Item no. Part no. Part name Service part 9323340008 Air filter ♦ 9387756067 Intake grille assy ♦ 9333719009 Grille clamper L ♦ 9333704005 Grille clamper R ♦ - (02-39) - 3-4.
  • Page 100 Wire cover B assy Wire cover assy Item no. Part no. Part name Service part 9387479010 Horizontal louver assy ♦ 9383730030 Louver spring ♦ - (02-40) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 101 Wifi holder assy Control cover Item no. Part no. Part name Service part 9387467000 Room thermistor holder ♦ 9900627041 Thermistor assy ♦ - (02-41) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 102 Control box Display case assy Item no. Part no. Part name Service part 9711141538 Main PCB ♦ 9306489045 Terminal ♦ 9711146052 Display assy ♦ 9711147011 Indicator PCB ♦ - (02-42) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 103 Item no. Part no. Part name Service part 9383735011 Evaporator total assy ♦ - (02-43) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 104 Base total assy Motor cover assy Fan motor Base assy Pipe bracket Motor case Motor cover assy Item no. Part no. Part name Service part 9603631000 Brushless motor ♦ 9387055054 Crossflow fan assy ♦ 9333628004 Bearing D assy ♦ - (02-44) - 3-4.
  • Page 105 Cable guide Drain pan total assy Vertical louver stepping motor assy Gear case assy Gear case assy Specer K assy Vertical louver stepping motor assy Item no. Part no. Part name Service part 9387590142 Drain pan total assy ♦ 9901011016 Stepping motor ♦...
  • Page 106 ¢ Model: ASYG18KMTE  Exterior parts - (02-46) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 107 Item no. Part no. Part name Service part 9388158013 Bracket panel ♦ 9387476002 Screw cover ♦ 9383729027 Wire cover assy B ♦ 9387597066 Wire cover assy ♦ 9383765056 WLAN adapter holder assy ♦ 9387479010 Louver assy (Up/Down) ♦ 9323342040 Under cover R ♦...
  • Page 108  Chassis - (02-48) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 109 Item no. Part no. Part name Service part 9383735196 Evaporator total assy ♦ 9387467000 Room thermistor holder ♦ 9901013010 Terminal 3P ♦ 9711732330 Main PCB (18 model) ♦ 9900627041 Thermistor assy ♦ 9711146052 Display assy ♦ 9711147011 Indicator PCB ♦ 9387587159 Base assy ♦...
  • Page 110 ¢ Models: ASYG07–14KMTB Item no. Part no. Part name Service part 9319208008 Remote controller ♦ 9318912005 Remote controller holder ♦ 9387480009 Bracket panel ♦ 9332911008 Electric filter holder ♦ 9317250009 Air clean filter assy ♦ - (02-50) - 3-4. Wall mounted type 3.
  • Page 111 Wire cover assy Item no. Part no. Part name Service part 9387476002 Screw cover ♦ 9387477009 Under cover L ♦ 9387478006 Under cover R ♦ 9387596731 Front panel total assy ♦ - (02-51) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 112 Front panel total assy Front panel Panel cover Front panel B Item no. Part no. Part name Service part 9387473018 Air filter ♦ 9387756050 Intake grille assy ♦ 9333719009 Grille clamper L ♦ 9333704005 Grille clamper R ♦ - (02-52) - 3-4.
  • Page 113 Item no. Part no. Part name Service part 9387479003 Horizontal louver assy ♦ 9332861006 Shaft cover ♦ 9387471007 Louver spring ♦ - (02-53) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 114 Control box Control cover Item no. Part no. Part name Service part 9387467000 Room thermistor holder ♦ 9900627027 Thermistor assy ♦ - (02-54) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 115 Display case assy Item no. Part no. Part name Service part 9710368295 Main PCB (For 07 model) ♦ 9710368301 Main PCB (For 09 model) ♦ 9710368318 Main PCB (For 12 model) ♦ 9710368325 Main PCB (For 14 model) ♦ 9900369057 Terminal ♦...
  • Page 116 Motor cover assy Motor case Cable guide Step motor holder assy Step motor holder Item no. Part no. Part name Service part 9387593143 Evaporator total assy (For 07, 09, 12 model) ♦ 9387593150 Evaporator total assy (For 14 model) ♦ 9387590166 Drain pan total assy ♦...
  • Page 117 ¢ Models: ASYG07–14KMCC Item no. Part no. Part name Service part 9319208008 Remote controller ♦ 9318912005 Remote controller holder ♦ 9387480030 Bracket panel ♦ 9332911008 Electric filter holder ♦ 9317250009 Air clean filter assy ♦ - (02-57) - 3-4. Wall mounted type 3.
  • Page 118 Wire cover assy Item no. Part no. Part name Service part 9387476002 Screw cover ♦ 9387477009 Under cover L ♦ 9387478006 Under cover R ♦ 9387596410 Front panel total assy ♦ - (02-58) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 119 Front panel total assy Front panel Panel cover Front panel B Item no. Part no. Part name Service part 9387473018 Air filter ♦ 9323546004 Intake grille assy ♦ 9333719009 Grille clamper L ♦ 9333704005 Grille clamper R ♦ - (02-59) - 3-4.
  • Page 120 Item no. Part no. Part name Service part 9387479041 Horizontal louver assy ♦ 9332861006 Shaft cover ♦ 9333951003 Louver spring ♦ - (02-60) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 121 Control box Control cover Item no. Part no. Part name Service part 9387467017 Room thermistor holder ♦ 9900627027 Thermistor assy ♦ - (02-61) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 122 Display case assy Item no. Part no. Part name Service part 9710368448 Main PCB (For 07 model) ♦ 9710368455 Main PCB (For 09 model) ♦ 9710368462 Main PCB (For 12 model) ♦ 9710368479 Main PCB (For 14 model) ♦ 9901013027 Terminal ♦...
  • Page 123 Motor cover assy Motor case Cable guide Step motor holder assy Step motor holder Item no. Part no. Part name Service part 9387593211 Evaporator total assy (For 07, 09, 12 model) ♦ 9387593204 Evaporator total assy (For 14 model) ♦ 9387590104 Drain pan total assy ♦...
  • Page 124 ¢ Models: ASYG07–14KMCE  Exterior parts - (02-64) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 125 Item no. Part no. Part name Service part 9388142012 Bracket panel ♦ 9333951003 Louver spring ♦ 9333608006 Bush ♦ 9387714050 Stepping motor holder assy ♦ 9901011016 Stepping motor ♦ 9332861006 Shaft cover ♦ 9387590104 Drain pan total assy ♦ 9387476002 Screw cover ♦...
  • Page 126  Base, evaporator, and control - (02-66) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 127 Item no. Part no. Part name Service part 9387587227 Base assy ♦ 9388139012 Pipe bracket A ♦ 9334143001 Under cover C ♦ 9334137000 Screw cover ♦ 9383765056 WLAN adapter holder assy ♦ 9711732743 Main PCB (07 model) ♦ 9711732750 Main PCB (09 model) ♦...
  • Page 128 ¢ Models: ASYG07–14KMCF  Exterior parts - (02-68) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 129 Item no. Part no. Part name Service part 9388142012 Bracket panel ♦ 9333951003 Louver spring ♦ 9333608006 Bush ♦ 9387714067 Stepping motor holder assy ♦ 9901011092 Stepping motor ♦ 9387590258 Drain pan total assy ♦ 9387476002 Screw cover ♦ 9387479041 Horizontal louver assy ♦...
  • Page 130  Base, evaporator, and control - (02-70) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 131 Item no. Part no. Part name Service part 9387587227 Base assy ♦ 9388139012 Pipe bracket A ♦ 9334143001 Under cover C ♦ 9334137000 Screw cover ♦ 9383765056 WLAN adapter holder assy ♦ 9384563040 Wireless LAN adapter ♦ 9711732743 Main PCB (07 model) ♦...
  • Page 132 ¢ Models: ASYG07–14KETA and ASYG07–14KETA-B  Exterior parts - (02-72) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 133 Item no. Part no. Part name Service part 9387480023 Bracket panel ♦ 9387471007 Louver spring ♦ 9333608006 Bush ♦ 9387714036 Stepping motor holder assy ♦ 9901011047 Stepping motor ♦ 9387590166 Drain pan total assy ♦ 9333766072 Blow panel assy (07-14KETA model) ♦...
  • Page 134  Base, evaporator, and control - (02-74) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 135 Item no. Part no. Part name Service part 9387587098 Base assy (for 07-14KETA model) ♦ 9387587104 Base assy (for 07-14KETA-B model) ♦ 9383765032 WLAN adapter holder assy ♦ 9711141590 Main PCB (for 07 model) ♦ 9711141606 Main PCB (for 09 model) ♦...
  • Page 136 ¢ Models: ASYG07–14KETE and ASYG07–14KETE-B  Exterior parts - (02-76) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 137 Item no. Part no. Part name Service part 9387480023 Bracket panel ♦ 9387471007 Louver spring ♦ 9333608006 Bush ♦ 9387714036 Stepping motor holder assy ♦ 9901011047 Stepping motor ♦ 9387590166 Drain pan total assy ♦ 9333766072 Blow panel assy (07-14KETE model) ♦...
  • Page 138  Base, evaporator, and control - (02-78) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 139 Item no. Part no. Part name Service part 9387587098 Base assy (for 07-14KETE model) ♦ 9387587104 Base assy (for 07-14KETE-B model) ♦ 9383765056 WLAN adapter holder assy ♦ 9711732781 Main PCB (for 07 model) ♦ 9711732798 Main PCB (for 09 model) ♦...
  • Page 140 ¢ Models: ASYG07–14KETF and ASYG07–14KETF-B  Exterior parts - (02-80) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 141 Item no. Part no. Part name Service part 9387480023 Bracket panel ♦ 9387471007 Louver spring ♦ 9333608006 Bush ♦ 9387714036 Stepping motor holder assy ♦ 9901011047 Stepping motor ♦ 9387590166 Drain pan total assy ♦ 9333766072 Blow panel assy (07—14KETF) ♦...
  • Page 142  Base, evaporator, and control - (02-82) - 3-4. Wall mounted type 3. Indoor unit parts list...
  • Page 143 Item no. Part no. Part name Service part 9387587098 Base assy (07—14KETF) ♦ 9387587104 Base assy (07—14KETF-B) ♦ 9383765056 WLAN adapter holder assy ♦ 9384563040 WLAN adapter ♦ 9711732781 Main PCB (07 model) ♦ 9711732798 Main PCB (09 model) ♦ 9711732804 Main PCB (12 model) ♦...
  • Page 144 3-5. Ceiling type ¢ Model: ABYG18KRTA  Chassis - (02-84) - 3-5. Ceiling type 3. Indoor unit parts list...
  • Page 145 Item no. Part no. Part name Service part 9384321015 Intake grille B sub assy ♦ 9383344008 Grille hinge (2 pcs.) ♦ 9383342011 Air filter B ♦ 9384307002 Casing U assy ♦ 9384110015 Sirocco fan assy ♦ 9383443008 Rubber (Vibration proof) ♦...
  • Page 146 3-6. Floor type ¢ Models: AGYG09–14KVCA  Exterior parts and chassis - (02-86) - 3-6. Floor type 3. Indoor unit parts list...
  • Page 147 Item no. Part no. Part name Service part 9316193024 Base ♦ 9316197015 Base cover A ♦ 9316373013 Base cover B ♦ 9316405011 Base bracket ♦ 9316272019 Bracket panel ♦ 9306628024 Bearing C assy ♦ 9900720087 Terminal (3P) ♦ 9316307025 Terminal cover ♦...
  • Page 148  Casing - (02-88) - 3-6. Floor type 3. Indoor unit parts list...
  • Page 149 Item no. Part no. Part name Service part 9316411012 Casing assy ♦ 9316207011 Top cover ♦ 9315281012 Spacer C ♦ 9316209015 Joint U ♦ 9316210011 Guard holder ♦ 9315282019 Spacer D ♦ 9316208018 L and R louver U ♦ 9316211018 Fan guard ♦...
  • Page 150  Drain pan - (02-90) - 3-6. Floor type 3. Indoor unit parts list...
  • Page 151 Item no. Part no. Part name Service part 9316412057 Drain pan assy ♦ 9316217010 Limit switch cover ♦ 9316218017 Key top ♦ 9316177017 Drain cap ♦ 9316214026 Drain pan U ♦ Wire with connector 9711683007 ♦ (Refrigerant leak detect sensor—P410 on Main PCB) 9901089008 Refrigerant leak detect sensor ♦...
  • Page 152 4. Outdoor unit parts list 4-1. Models: AOYG18KBTA3 and AOYG24KBTA3 ¢ Exterior parts and Chassis - (02-92) - 4-1. Models: AOYG18KBTA3 and AOYG24KBTA3 4. Outdoor unit parts list...
  • Page 153 Item no. Part no. Part name Service part 9322556073 Top panel assy ♦ 9322811042 Protective net ♦ 9322552266 Cabinet right assy ♦ 9322554031 Terminal cover assy ♦ 9322570079 Switch cover assy ♦ 9322267016 Shield panel ♦ 9900369088 Terminal (Power) ♦ 9900369071 Terminal (Inner) ♦...
  • Page 154 ¢ Compressor - (02-94) - 4-1. Models: AOYG18KBTA3 and AOYG24KBTA3 4. Outdoor unit parts list...
  • Page 155 Item no. Part no. Part name Service part 9384904003 S-insulator K ♦ 9384901002 S-insulator B ♦ 9900186029 Pressure switch ♦ 9384894007 4-way valve assy ♦ 9970194016 Solenoid ♦ 9384580009 Pipe (Condenser outlet) B ♦ 9970186073 Expansion valve coil C (L=1160) ♦...
  • Page 156 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 157 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 158 ¢ 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 159 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 160 5-4. Wall mounted type ¢ Models: ASYG07–14KGTB, ASYG07–14KMTB, and ASYG07– 14KMCC 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...
  • Page 161 ¢ Models: ASYG07–14KGTE and ASYG07–14KGTF 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 - (02-101) - 5-4.
  • Page 162 ¢ Model: ASYG18KMTB Part name Exterior Part name Exterior Self-tapping screw Operation manual (large) Self-tapping screw Installation manual (small) Remote controller Battery Remote controller Filter holder holder Cloth tape Air cleaning filters Wall hook bracket - (02-102) - 5-4. Wall mounted type 5.
  • Page 163 ¢ Model: ASYG18KMTE 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 - (02-103) - 5-4.
  • Page 164 ¢ Models: ASYG07–14KMCE and ASYG07–14KMCF 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 - (02-104) - 5-4.
  • Page 165 ¢ Models: ASYG07–14KETA, ASYG07–14KETA-B, ASYG07– 14KETE, ASYG07–14KETE-B, ASYG07–14KETF, and ASYG07– 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...
  • Page 166 5-5. Ceiling type ¢ Model: ABYG18KRTA 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 167 5-6. Floor type ¢ Models: AGYG09–14KVCA 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 - (02-107) - 5-6.
  • Page 168 5-7. Outdoor unit ¢ Model: AOYG18KBTA3 Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain pipe ¢ Model: AOYG24KBTA3 Part name Exterior Q’ty Part name Exterior Q’ty Adapter K Installation manual 12.70 mm (1/2 in) to 9.52 mm (3/8 in) Drain pipe - (02-108) - 5-7.
  • Page 169 6. Optional parts 6-1. Indoor unit ¢ Controllers  Lineup Type Indoor unit type Wireless Remote Controller AR-REM4E AR-REM7E AR-REB1E AR-REW2E Compact cassette — — — — Mini duct — — — — Slim duct — — — — KGTB ●...
  • Page 170 Type Indoor unit type Wired Remote Controller UTY-RNNYM UTY-RVNYM UTY-RLRY UTY-RNRYZ* UTY-RCRYZ1 Compact cassette ◌ ◌ ◌ ◌ ◌ Mini duct ◌ ◌ ◌ ◌ ◌ Slim duct ◌ ◌ ◌ ◌ ◌ KGTB — — ◌ ◌ ◌ KGTE —...
  • Page 171  Parts Exterior Part name Model name Summary Easy finger touch operation with LCD panel. Backlit LCD enables easy Wired Remote UTY-RNRYZ* operation in a dark room. Controller Wire type: Non-polar 2-wire High visibility and easy operation. Room temperature can be accurately Wired Remote UTY-RLRY controlled using the thermo sensor.
  • Page 172 Exterior Part name Model name Summary Compact remote controller concentrates on the basic functions such as Start/Stop, fan control, temperature setting, and operation Simple Remote UTY-RSNYM Controller mode. Wire type: Polar 3-wire IR Receiver Kit Unit control is performed by Wireless with Wireless UTY-LBTYM Remote Controller...
  • Page 173 ¢ 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. - (02-113) - 6-1.
  • Page 174 ¢ 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 175 Type External Input and Output Indoor unit type External Connect Kit UTY-XWZX UTY-XWZXZ5 UTY-XWZXZG UTY-XCSXZ2 UTY-XCSX Compact cassette — — ◌ — ◌ Mini duct — — ◌ — — Slim duct — — ◌ — — KGTB ◌ — —...
  • Page 176 Type Air Cleaning Indoor unit type Communication Kit Filter UTY-TWBXF2 UTY-TWRXZ2 UTY-TWRXZ3 UTR-FA16-5 Compact cassette — — — — Mini duct — — — — Slim duct — — — — KGTB — ◌ — — KGTE — ◌ — —...
  • Page 177  Parts Exterior Part name Model name Summary Thermo-sensor for sensing the Remote Sensor UTY-XSZX temperature of arbitrary place in the Unit room. Width: 683 mm For 07, 09, 12, and 14 models Auto Louver UTD-GXTA-W Grille Kit Width: 883 mm Auto Louver UTD-GXTB-W Grille Kit...
  • Page 178 Exterior Part name Model name Summary Communication Use to connect with optional devices UTY-TWBXF2 and air conditioner PCB. Use to connect with external devices and air conditioner PCB. External Input UTY-XCSX and Output PCB Optional External Connect Kit is necessary for installation. Use to connect with external devices and air conditioner PCB.
  • Page 179 Exterior Part name Model name Summary For connection between indoor unit Modbus with UART interface and a Modbus UTY-VMSX Converter open network. For connection between indoor unit with UART interface and a KNX open KNX Convertor UTY-VKSX network. This converter is required when Network connecting single split system to VRF UTY-VTGX...
  • Page 180 7. Refrigerant system diagrams 7-1. Models: AOYG18KBTA3 and AOYG24KBTA3 Pressure switch CONDENSER - (02-120) - 7-1. Models: AOYG18KBTA3 and AOYG24KBTA3 7. Refrigerant system diagrams...
  • Page 181 8. Wiring diagrams 8-1. Compact cassette type ¢ Models: AUXG07–18KVLA - (02-121) - 8-1. Compact cassette type 8. Wiring diagrams...
  • Page 182 8-2. Mini duct type and Slim duct type ¢ Models: ARXG07–18KSLAP and ARXG07–18KLLAP WLAN adapter, Converter etc. (Option) - (02-122) - 8-2. Mini duct type and Slim duct type 8. Wiring diagrams...
  • Page 183 8-3. Wall mounted type ¢ Models: ASYG07–14KGTB - (02-123) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 184 ¢ Models: ASYG07–14KGTE - (02-124) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 185 ¢ Models: ASYG07–14KGTF - (02-125) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 186 ¢ Model: ASYG18KMTB - (02-126) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 187 ¢ Model: ASYG18KMTE - (02-127) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 188 ¢ Models: ASYG07–14KMTB - (02-128) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 189 ¢ Models: ASYG07–14KMCC - (02-129) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 190 ¢ Models: ASYG07–14KMCE - (02-130) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 191 ¢ Models: ASYG07–14KMCF - (02-131) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 192 ¢ Models: ASYG07–14KETA and ASYG07–14KETA-B - (02-132) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 193 ¢ Models: ASYG07–14KETE and ASYG07–14KETE-B - (02-133) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 194 ¢ Models: ASYG07–14KETF and ASYG07–14KETF-B - (02-134) - 8-3. Wall mounted type 8. Wiring diagrams...
  • Page 195 8-4. Ceiling type ¢ Model: ABYG18KRTA - (02-135) - 8-4. Ceiling type 8. Wiring diagrams...
  • Page 196 8-5. Floor type ¢ Models: AGYG09–14KVCA - (02-136) - 8-5. Floor type 8. Wiring diagrams...
  • Page 197 8-6. Outdoor unit ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 - (02-137) - 8-6. Outdoor unit 8. Wiring diagrams...
  • Page 198 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 199 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 200 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 201 9-4. Models: ASYG07–14KGTB CONTROL UNIT 07 model : EZ-0183LHSE 09 model : EZ-0183MHSE 12 model : EZ-0183PHSE 14 model : EZ-0183RHSE OPTION UNIT ( 2-WIRE REMOTE CONTROL ) 3.15A UTY-TWRXZ2 AC250V UL1015 AWG22 BLACK OUTDOOR UNIT UL1015 AWG22 WHITE POWER SOURCE UL1007 AWG22 CN300 AC230V...
  • Page 202 9-5. Models: ASYG07–14KGTE CONTROL UNIT 07 model : EZ-0210LHSE 09 model : EZ-0210MHSE 12 model : EZ-0210PHSE 14 model : EZ-0210RHSE 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...
  • Page 203 9-6. Models: ASYG07–14KGTF CONTROL UNIT 07 model : EZ-0210LHSE 09 model : EZ-0210MHSE 12 model : EZ-0210PHSE 14 model : EZ-0210RHSE 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...
  • Page 204 9-7. Model: ASYG18KMTB CONTROL UNIT 18 model : EZ-02006HSE 22 model : EZ-02007HSE 24 model : EZ-02008HSE 2-WIRE REMOTE CONTROLLER UNIT ( OPTION ) UTY-TWRXZ2 CN5 DC Fan motor Terminal Lead wire Pin No. Function of terminal CN301 UL1007 AWG22 CN300 code REMOTE...
  • Page 205 9-8. Model: ASYG18KMTE 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 206 9-9. Models: ASYG07–14KMTB CONTROL UNIT 07 model : EZ-0183EHSE 09 model : EZ-0183FHSE 12 model : EZ-0183DHSE 14 model : EZ-0183HHSE COMMUNICATION KIT ( OPTION ) UTY-TWBXF2 OUTDOOR UNIT BLACK 3.15A 250V WHITE 2013485-1 CNC01 POWER SOURCE REMOTE WHITE WHITE CND01 B05B-XASK-1-A AC230V...
  • Page 207 9-10. Models: ASYG07–14KMCC CONTROL UNIT 07 model : EZ-019CHSE 09 model : EZ-019DHSE 12 model : EZ-019EHSE 14 model : EZ-019FHSE COMMUNICATION KIT ( OPTION ) UTY-TWBXF2 OUTDOOR UNIT BLACK 3.15A 250V WHITE 2013485-1 CNC01 POWER SOURCE REMOTE WHITE WHITE CND01 B05B-XASK-1-A AC230V...
  • Page 208 9-11. Models: ASYG07–14KMCE CONTROL UNIT 07 model : EZ-0210FHSE 09 model : EZ-0216HSE 12 model : EZ-0217HSE 14 model : EZ-0218HSE 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...
  • Page 209 9-12. Models: ASYG07–14KMCF CONTROL UNIT 07 model : EZ-0210FHSE 09 model : EZ-0216HSE 12 model : EZ-0217HSE 14 model : EZ-0218HSE 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...
  • Page 210 9-13. Models: ASYG07–14KETA and ASYG07–14KETA-B CONTROL UNIT 07 model : EZ-0198HSE 09 model : EZ-0199HSE 12 model : EZ-019AHSE 14 model : EZ-019BHSE 2-WIRE REMOTE CONTROLLER UNIT ( OPTION ) UTY-TWRXZ2 CN5 DC Fan motor Terminal Lead wire Pin No. Function of terminal CN301 UL1007 AWG22...
  • Page 211 9-14. Models: ASYG07–14KETE and ASYG07–14KETE-B CONTROL UNIT 07 model : EZ-0210SHSE 12 model : EZ-0210WHSE 09 model : EZ-0210THSE 14 model : EZ-0210YHSE OPTION (2-WIRE REMOTE CONTROLLER UNIT) TERMINAL JXO-T3102-3P-B UTY-TWRXZ2 AWG22 AWG22 BLACK CN14 REMOTE CN301 OUTDOOR UNIT CN300 AWG22 WHITE CONTROLLER...
  • Page 212 9-15. Models: ASYG07–14KETF and ASYG07–14KETF-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 213 9-16. Model: ABYG18KRTA 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 214 9-17. Models: AGYG09–14KVCA 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 215 9-18. Models: AOYG18KBTA3 and AOYG24KBTA3 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 216 - (02-156) - 9-18. Models: AOYG18KBTA3 and AOYG24KBTA3 9. PC board diagrams...
  • Page 217 3. TROUBLESHOOTING 2023.03.17 SR_CH03_MU003EF_07...
  • Page 218 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 219: Table Of Contents

    CONTENTS (continued) 2-33. E: 77. Heat sink thermistor error (Outdoor unit) ............03-59 2-34. E: 86. High pressure switch error (Outdoor unit) ............03-60 2-35. E: 94. Over current error (Outdoor unit)..............03-61 2-36. E: 95. Compressor motor control error (Outdoor unit) ..........03-63 2-37.
  • Page 221 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 222 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 223 Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ] controller (Green) (Orange) (Green) display E: 73. Outdoor unit heat exchanger 7 times 3 times Continuous thermistor error (Outdoor unit) E: 74. Outdoor temperature thermistor error 7 times 4 times Continuous...
  • Page 224 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 225 MONITOR POWER/ Error contents ERROR MODE E: 77. Heat sink thermistor error (Outdoor ● ■ ■ ■ ○ ○ ○ ● unit) E: 86. High pressure switch error ● ■ ■ ■ ○ ○ ○ ● (Outdoor unit) E: 86. High pressure switch error ●...
  • Page 226 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 227 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 228 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 229 Error message Error contents Error code Outdoor unit trip detection E: 94. Over current error (Outdoor unit) 94.1 Outdoor unit compressor rotor position E: 95. Compressor motor control error 95.1 detection error (permanent stop) (Outdoor unit) Outdoor unit fan motor 1 power source duty E: 97.
  • Page 230 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 231 ¢ 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 232 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 233 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 234 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 235 • 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 236 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 237 • 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 238 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 239 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 240 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 241 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 242 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 243 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 244 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 245 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 246 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 247 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 248 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 249 ↓ 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 250 2-4. 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 251 2-5. 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 252 2-6. 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 253 2-7. 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 254 2-8. 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 255 2-9. 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 256 2-10. 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 257 2-11. 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 258 2-12. 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 259 2-13. 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 260 2-14. 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 261 2-15. 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 262 2-16. 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 263 2-17. 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 264 2-18. 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 265 2-19. 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 266 2-20. 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 267 2-21. 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 268 2-22. 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 269 2-23. 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 270 2-24. 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 271 2-25. 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 272 2-26. 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 273 2-27. 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 274 2-28. 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 275 2-29. 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 276 2-30. 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 277 2-31. 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 278 2-32. 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 279: E: 77. Heat Sink Thermistor Error (Outdoor Unit)

    2-33. 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 280: E: 86. High Pressure Switch Error (Outdoor Unit)

    2-34. 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 281: E: 94. Over Current Error (Outdoor Unit)

    2-35. 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 282 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. ↓ - (03-62) - 2-35.

  • Page 283: E: 95. Compressor Motor Control Error (Outdoor Unit)

    2-36. 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 284: E: 97. Outdoor Unit Fan Motor Error (Outdoor Unit)

    2-37. 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 285: E: 99. 4-Way Valve Error (Outdoor Unit)

    2-38. 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 286 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 287: E: 9A. Coil 1 (Expansion Valve 1) Error

    2-39. 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 288: E: A1. Discharge Temperature Error (Outdoor Unit)

    2-40. 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 289 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. ↓ - (03-69) - 2-40. E: A1. Discharge temperature error (Outdoor unit) 2.

  • Page 290: E: A3. Compressor Temperature Error (Outdoor Unit)

    2-41. 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 291 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. ↓ - (03-71) - 2-41. E: A3. Compressor temperature error (Outdoor unit) 2.

  • Page 292: E: A8. Refrigerant Leakage Sensor Error (Indoor Unit)

    2-42. 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 293: Troubleshooting Without Error Code

    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 294: Outdoor Unit-No Power

    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 295: No Operation (Power Is On)

    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 296 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 297: No Cooling/No Heating

    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 298 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 299: Abnormal Noise

    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 300: Water Leaking

    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 301: Troubleshooting With Error Code (For Wireless Lan Adapter)

    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 302: Network Communication Error Between Wireless Lan Router And Wireless Lan Adapter

    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 303 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 304: E: 18. Communication Error

    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 305 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 306: E: 18. Wireless Lan Adapter Non-Energized

    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 307: Mobile App Setting Method

    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 308 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. - (03-88) - 4-5. Mobile app setting method 4. Troubleshooting with error code (For wireless LAN adapter)

  • Page 309: Service Parts Information

    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 310: Inverter Compressor

    5-2. Inverter compressor ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 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 311 Check point 3. Replace inverter PCB If check point 1 to 2 do not improve the symptom, replace main PCB. - (03-91) - 5-2. Inverter compressor 5. Service parts information...

  • Page 312: Outdoor Unit Electronic Expansion Valve (Eev)

    5-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 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 02-121.
  • Page 313 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 314: Indoor Unit Fan Motor

    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 315 ¢ Models: ARXG07–18KSLAP, ARXG07–18KLLAP, ASYG12– 14KGTB, ASYG12–14KGTE, ASYG12–14KGTF, ASYG18KMTB, ASYG18KMTE, ASYG07–14KMCE, ASYG07–14KMCF, ASYG14KETA, ASYG14KETA-B, ASYG14KETE, ASYG14KETE- B, ASYG14KETF, ASYG14KETF-B, and ABYG18KRTA 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 316 ¢ Models: ASYG07–09KGTB, ASYG07–09KGTE, ASYG07– 09KGTF, ASYG07–12KETA, ASYG07–12KETA-B, ASYG07– 12KETE, ASYG07–12KETE-B, ASYG07–12KETF, and ASYG07– 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) →...
  • Page 317 ¢ Models: ASYG07–14KMTB and ASYG07–14KMCC 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 318 ¢ Models: AGYG09–14KVCA 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 319: Outdoor Unit Fan Motor

    5-5. Outdoor unit fan motor ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 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 320: Thermistor Resistance Values

    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 321: Outdoor Unit

    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 322 ¢ 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 323 ¢ 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 324 ¢ 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 325 ¢ 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 326 - (03-106) - 6-2. Outdoor unit 6. Thermistor resistance values...
  • Page 327 4. CONTROL AND FUNCTIONS 2023.03.17 SR_CH04_MU003EF_08...
  • Page 328 CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-10 1-3. Dry operation ........................04-11 1-4. Rotation number of compressor at normal start-up ............04-18 1-5. Rotation number of compressor limitation by outdoor temperature ......04-19 2.
  • Page 329 CONTENTS (continued) 8-1. Discharge gas temperature over-rise prevention control ..........04-77 8-2. Anti-freezing control (cooling and dry mode) ..............04-77 8-3. Current release control ....................04-78 8-4. Indoor unit fan motor over temperature protection............04-79 8-5. Compressor temperature protection ................04-80 8-6. High pressure protection ....................04-80 8-7.

  • Page 331: Rotation Number Control Of Compressor

    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 332 • 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: AOYG18KBTA3 Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone AUXG07–12KVLA C zone D zone...
  • Page 333 ¢ Mini duct type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • 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 334 ¢ Slim duct type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • 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 335 ¢ Wall mounted type (For KGTB, KGTE, and KGTF) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone...
  • Page 336 ¢ Wall mounted type (For KMTB, KMTE, KMCC, KMCE, and KMCF) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C...
  • Page 337 ¢ Wall mounted type (For KETA[-B], KETE[-B], and KETF[-B]) • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • Limit of maximum speed based on outdoor temperature A zone 26°C B zone 23°C C zone...
  • Page 338 ¢ Ceiling type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG24KBTA3 • 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 339 ¢ Floor type • Rotation number range of compressor Unit: rps Connected model name Minimum rotation number Maximum rotation number AOYG18KBTA3 AOYG24KBTA3 • 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 340: Heating Operation

    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 341: Dry Operation

    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 342 ¢ Mini duct type • Rotation number range of compressor Unit: rps – Model: AOYG18KBTA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–14KSLAP J zone Y zone – Model: AOYG24KBTA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–18KSLAP J zone...
  • Page 343 ¢ Slim duct type • Rotation number range of compressor Unit: rps – Model: AOYG18KBTA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–14KLLAP J zone Y zone – Model: AOYG24KBTA3 Model name Outdoor temperature zone Operating rotation number X zone ARXG07–18KLLAP J zone...
  • Page 344 ¢ Wall mounted type (For KGTB, KGTE, and KGTF) • Rotation number range of compressor Unit: rps – Models: AOYG18KBTA3 and AOYG24KBTA3 Model name Outdoor temperature zone Operating rotation number ASYG07–14KGTB X zone J zone ASYG07–14KGTE ASYG07–14KGTF Y zone • Compressor control based on room temperature Room temperature rises Room temperature drops X zone...
  • Page 345 ¢ Wall mounted type (For KMTB, KMTE, KMCC, KMCE, and KMCF) • Rotation number range of compressor Unit: rps – Model: AOYG18KBTA3 Model name Outdoor temperature zone Operating rotation number ASYG07–14KMTB X zone J zone ASYG07–14KMCC ASYG07–14KMCE Y zone ASYG07–14KMCF –...
  • Page 346 ¢ Wall mounted type (For KETA[-B], KETE[-B], and KETF[-B]) • Rotation number range of compressor Unit: rps – Models: AOYG18KBTA3 and AOYG24KBTA3 Model name Outdoor temperature zone Operating rotation number ASYG07–14KETA X zone ASYG07–14KETA-B ASYG07–14KETE J zone ASYG07–14KETE-B ASYG07–14KETF Y zone ASYG07–14KETF-B •...
  • Page 347 ¢ Ceiling type • Rotation number range of compressor Unit: rps – Model: AOYG24KBTA3 Model name Outdoor temperature zone Operating rotation number X zone ABYG18KRTA 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 348: Rotation Number Of Compressor At Normal Start-Up

    1-4. Rotation number of compressor at normal start-up ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 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 349: Rotation Number Of Compressor Limitation By Outdoor Temperature

    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 350: Auto Changeover Operation

    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 351 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 352: Fan Control

    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 353  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 354  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 355 • 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 356 ¢ 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 357  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 358  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) - (04-28) - 3-1.
  • Page 359 ¢ 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 360  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 361  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) - (04-31) - 3-1.
  • Page 362 ¢ Wall mounted type (For KGTB)  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASYG07KGTB ASYG09KGTB ASYG12KGTB ASYG14KGTB 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 363  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 364 • 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 365 ¢ Wall mounted type (For KGTE and KGTF)  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASYG07KGTE ASYG09KGTE ASYG12KGTE ASYG14KGTE ASYG07KGTF ASYG09KGTF ASYG12KGTF ASYG14KGTF POWERFUL 1,200 1,230 1,290 1,330 HIGH 1,130 1,160 1,220 1,260 MED+...
  • Page 366  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 367 • 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 368 ¢ Wall mounted type (For KMTB, KMTE, KMCC, KMCE, and KMCF)  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation ASYG07KMCC ASYG09KMCC ASYG12KMCC ASYG14KMCC Fan mode ASYG18KMTB mode ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE ASYG18KMTE ASYG07KMCF ASYG09KMCF ASYG12KMCF ASYG14KMCF POWERFUL 1,400...
  • Page 369  Fan operation Airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH while indoor unit fan only runs. When fan mode is set at AUTO, it operates on MED fan speed.  Cooling operation Switch the airflow AUTO, and indoor fan motor will run according 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”...
  • Page 370 • 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 371 • 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 372 ¢ Wall mounted type (For KETA[-B], KETE[-B], and KETF[-B])  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation ASYG07KETA[-B] ASYG09KETA[-B] ASYG12KETA[-B] ASYG14KETA[-B] Fan mode mode ASYG07KETE[-B] ASYG09KETE[-B] ASYG12KETE[-B] ASYG14KETE[-B] ASYG07KETF[-B] ASYG09KETF[-B] ASYG12KETF[-B] ASYG14KETF[-B] POWERFUL 1,210 1,250 1,270 1,360 HIGH...
  • Page 373  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 374 • 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 375 ¢ Ceiling type  Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation Fan mode mode ABYG18KRTA 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 376  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 377 • 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 378 ¢ Floor type  Fan speed Indoor fan speed is defined as below. • Model: AGYG09KVCA 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 379 • Model: AGYG14KVCA 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 380  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 381 • 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 382: Outdoor Fan Control

    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: AOYG18KBTA3 Fan speed is defined by outdoor temperature and compressor frequency. Unit: rpm Fan step Cooling or dry...
  • Page 383  Model: AOYG24KBTA3 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 384: Louver Control

    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 385 ¢ 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 386: Vertical Louver Control

    4-2. Vertical louver control ¢ Wall mounted type (For KGTE, KGTF, and 18KMTB) 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 ¢...

  • Page 387: Individual Louver Control

    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 388: Swing Operation

    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 389: Timer Operation Control

    5. Timer operation control 5-1. Wireless remote control ¢ Compact cassette, Mini duct, Slim duct, Wall mountend (For KGTE, KGTF, 07–14KMTB, KMCC, KMCE, and KMCF), and Ceiling types On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ — ...
  • Page 390  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 391 ¢ Wall mounted (For KGTB, 18KMTB, KMTE, KETA[-B], KETE[-B], 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 392  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 393: Wired Remote Control

    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 394 ¢ 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 395 ¢ 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 396: Defrost Operation Control

    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 397: Defrost Operation In Heating Operation Stopped

    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 398: Various Control

    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 cassette, Mini duct, Slim duct, Operation contents...

  • Page 399: Forced Cooling Operation

    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 400: Economy Operation

    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 401: Compressor Preheating

    7-8. Compressor preheating By preheating the compressor, warm airflow is quickly discharged when the operation is started. • Triggering condition – 30 minutes after compressor stopped. – Outdoor unit heat exchanger temperature (Tn) -2°C -4°C 7-9. External electrical heater control (For Compact cassette, Mini duct, Slim duct, KGTE, KGTF, KMTE, KMCE, KMCF, KETE[-B], and KETF[-B] series wall mounted and Ceiling types)

  • Page 402: Drain Pump Control

    7-11. Drain pump control ¢ Drain control for cooling operation (For Mini 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 403  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 404 ¢ 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 405: Prevention To Restart For 3 Minutes (3 Minutes St)

     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 406: Human Sensor For Energy Saving (For Kgtb, Kgte, And Kgtf Series Wall Mounted And Ceiling Types)

    7-14. Human sensor for energy saving (For KGTB, KGTE, and KGTF 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 407: Various Protections

    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 408: Current Release Control

    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 409: Indoor Unit Fan Motor Over Temperature Protection

    8-4. Indoor unit fan motor over temperature protection ¢ Compact cassette 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. • IPM trip protection works. •...

  • Page 410: Compressor Temperature Protection

    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 411: High Temperature And High Pressure Release Control

    8-8. High temperature and high pressure release control The compressor is controlled as follows. ¢ Models: AOYG18KBTA3 and AOYG24KBTA3 • 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 412 - (04-82) - 8-8. High temperature and high pressure release control 8. Various protections...
  • Page 413 5. FILED WORKING 2023.03.17 SR_CH05_MU003EF_08...
  • Page 414 CONTENTS 5. FILED 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. Indoor unit (setting by wireless remote controller) ............05-3 1-3. Indoor unit (setting by wired remote controller).............05-20 1-4.

  • Page 415: Function Settings (For Indoor Unit)

    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 416 ¢ 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 417: Indoor Unit (Setting By Wireless Remote Controller)

    1-2. 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 418 ¢ AR-REM4E (for Wall mounted type KGTB), AR-REW3E (for Wall mounted type KGTE and KGTF), AR-REW4E (for Wall mounted type KETA[-B], KETE[-B], and KETF[-B]), AR-REW2E (for Wall mounted type KMTB and 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 419  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 420 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 421  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 422  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 423 ¢ AR-REB1E (for Wall mounted type KMCC) and AR-RMB1E (for Wall mounted type KMCE and KMCF)  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.
  • Page 424  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 425 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 426  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 427  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 428 ¢ UTY-LNTY (for Compact cassette type) or AR-REJ1E (included in UTY-LBTYM for Duct 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. Setting number Refer to Function details.
  • Page 429  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 - (05-15) - 1-2.
  • Page 430 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 431 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 432  Setting up each indoor unit Repeat step from 1. to 8. to set up each indoor unit. If the custom code is other than " ", steps from 1. to 2. and 8. need to be performed.  Resetting the power after setting up all indoor units Important: •...
  • Page 433  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 434: Indoor Unit (Setting By Wired Remote Controller)

    1-3. 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 435 ¢ 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 436 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 437 ¢ 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 438 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 439 ¢ 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 440 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 441 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 442 ¢ 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 443 “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 444 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 445: Indoor Unit (Setting By Simple Remote Controller)

    1-4. 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 446 ¢ 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 447 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 448  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 449 ¢ 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 450 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 451 Setting results are displayed after data transmission. 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 se- lection screen.

  • Page 452: Function Details

    1-5. 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 Functio Compact Functions...
  • Page 453 Wall mounted Functio Functions n no. KGTB KGTE KGTF KMTB KMTE Remote controller ● — — ● — address setting Filter sign ● ● ● ● ● Ceiling height — — — — — Outlet directions — — — — —...
  • Page 454 Wall mounted Functio Functions n no. KMCC KMCE KMCF KETA(-B) KETE(-B) KETF(-B) Remote controller ● — — ● — — address setting Filter sign ● ● ● ● ● ● Ceiling height — — — — — — Outlet directions —...
  • Page 455 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 456 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 457 5) Static pressure (for Mini duct type and Slim 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 40 Pa 50 Pa Standard...
  • Page 458 7) Room temperature control for indoor unit sensor (for other than Floor type) NOTE: If the remote sensor unit option is selected, perform this setting. Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature of the room temperature sensor is corrected as follows: Corrected temp.
  • Page 459 8) Room temperature control for wired remote controller sensor (for other than Floor 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”. Ensure that the Thermo Sensor icon is displayed on the remote controller screen.
  • Page 460 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 461 15) Switching functions for external output terminal (For other than 18KMTB and KETA 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 462: Wired Remote Controller (Uty-Rnnym)

    1-6. 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 463  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 464: Wired Remote Controller (Uty-Rvnym)

    1-7. 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 465: Wired Remote Controller (Uty-Rlry)

    1-8. 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 466: Simple Remote Controller (Uty-Rsnym)

    1-10. 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 467: Function Settings (For Outdoor Unit)

    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 468 ¢ 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 469 ¢ 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 470: Outdoor Unit Low Noise Operation Function (Option)

    2-2. Outdoor unit low noise operation function (option) 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- NOTES: •...

  • Page 471: Check And Test

    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 472 ¢ 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 473 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 474 [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 475 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 476 ¢ 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 477: Test Run

    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 478: Error Code

    Push TEST RUN switch for more than 3 seconds. POWER MONITOR ERROR /MODE ( GRN ) ( RED ) POWER/MODE LED will turn on, and test run stops. 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.
  • Page 479 ¢ 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 480 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 481: Pump Down

    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 482 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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