LG multi V PLUS Service Manual
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LG multi V PLUS Service Manual

LG multi V PLUS Service Manual

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Air Conditioner

SERVICE MANUAL

MODELS: LRUV/LRUN Series
LRNV/LRNN Series
website http://www.lgservice.com
System
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
LG

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  • Page 1: Air Conditioner

    website http://www.lgservice.com System Air Conditioner SERVICE MANUAL MODELS: LRUV/LRUN Series LRNV/LRNN Series CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.

  • Page 2: Table Of Contents

    Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions ..................3 Model Names....................11 External Appearance ..................12 Combination of Outdoor Units ..............14 Nomenclature ....................15 Outdoor Units Information .................16 Indoor Units ...................21 Ceiling Mounted Cassette Type (1Way) ..........22 Ceiling Mounted Cassette Type (4 way)..........33 Ceiling Concealed Duct Type (High static)...........56 Ceiling Concealed Duct Type (Low static)..........75 Convertible Type ..................87...

  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
  • Page 4 Safety Precautions For re-installation of the installed product, Do not install, remove, or re-install the unit always contact a dealer or an Authorized by yourself (customer). Service Center. • There is risk of fire, electric shock, explosion, or • There is risk of fire, electric shock, explosion, or injury.
  • Page 5 Safety Precautions Ventilate before operating air conditioner Securely install the cover of control box and when gas leaked out. the panel. • It may cause explosion, fire, and burn. • If the cover and panel are not installed securely, dust or water may enter the outdoor unit and fire or electric shock may result.
  • Page 6 Safety Precautions When the product is soaked (flooded or Be cautious not to touch the sharp edges submerged), contact an Authorized Service when installing. Center. • There is risk of fire or electric shock. • It may cause injury. Take care to ensure that nobody could step Do not open the inlet grill of the product dur- on or fall onto the outdoor unit.
  • Page 7 Safety Precautions Use power cables of sufficient current Do not use the product for special purposes, carrying capacity and rating. such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. • Cables that are too small may leak, generate •...
  • Page 8 Safety Precautions Operation Do not use the air conditioner in special Do not block the inlet or outlet. environments. • Oil, steam, sulfuric smoke, etc. can significantly • It may cause failure of appliance or accident. reduce the performance of the air conditioner or damage its parts.
  • Page 9 Safety Precautions Safely dispose of the packing materials. Turn on the power at least 12 hours before starting operation.(In case of outdoor temperature 5°C below) • Packing materials, such as nails and other metal or • Starting operation immediately after turning on wooden parts, may cause stabs or other injuries.
  • Page 10 Part 1 General Information 1. Model Names ..............11 1.1 Indoor Unit .............11 1.2 Outdoor Unit ............11 2. External Appearance.............12 2.1 Indoor Unit .............12 2.2 Outdoor Unit ............13 3. Combination of Outdoor Units ........14 4. Nomenclature..............15 4.1 Indoor Unit ..............15 4.2 Outdoor Unit ............15 5.

  • Page 11: Model Names

    Model Names 1. Model Names 1.1 Indoor Unit Capacity(Btu/h(kW)) Category Chassis 4 8 k Name (2.1) (2.6) (3.5) (5.3) (6.2) (7.0) (8.2) (10.6) (11.1) (12.3) (14.1) 076SRA0 096SRA0 126SRA0 Wall Mounted 072SRA0 092SRA0 122SRA0 (General) 186STA0 182STA0 076SU*0 096SU*0 126SU*0 186S3*0 246S3*0 Deluxe 072SU*0 092SU*0 122SU*0 122S3*0...

  • Page 12: External Appearance

    External Appearance 2. External Appearance 2.1 Indoor Unit Ceiling Cassette- 1Way Ceiling Cassette- 4Way LRNV126TEA0 / LRNN126TEA0 / LRNV122TEA0 / LRNN122TEA0 LRNV076TCA0 / LRNN076TCA0 / LRNV072TCA0 / LRNN072TCA0 LRNV186TEA0 / LRNN186TEA0 / LRNV182TEA0 / LRNN182TEA0 LRNV096TCA0 / LRNN096TCA0 / LRNV092TCA0 / LRNN092TCA0 LRNV216TDA0 / LRNN216TDA0 / LRNV212TDA0 / LRNN212TDA0 LRNV126TCA0 / LRNN126TCA0 / LRNV122TCA0 / LRNN122TCA0 LRNV246TDA0 / LRNN246TDA0 / LRNV242TDA0 / LRNN242TDA0...
  • Page 13 External Appearance 2.2 Outdoor Unit LRUV508T0 / LRUN508T0 / LRUV509T0 / LRUN509T0 LRUV608T0 / LRUN608T0 / LRUV609T0 / LRUN609T0 LRUV808T0 / LRUV809T0 5, 6, 8HP LRUN808T0 / LRUN809T0 / LRUV80BT0 / LRUN80BT0 LRUV1008T0 / LRUN1008T0 / LRUV1009T0 / LRUN1009T0 / LRUV100BT0 / LRUN100BT0 LRUV1208T0 / LRUN1208T0 / LRUV1209T0 / LRUN1209T0 / LRUV120BT0 / LRUN120BT0 LRUV1408T0 / LRUN1408T0 / LRUV1409T0 / LRUN1409T0 8, 10, 12, 14HP...

  • Page 14: Combination Of Outdoor Units

    Combination of Outdoor Units 3. Combination of Outdoor Units System Capacity Number of Units Module 50Hz(60Hz) 1(1) 1(1) 1(1) 10HP 1(1) 12HP 1(1) 14HP 1(1) 16HP 2(2) 18HP 2(2) 20HP 2(2) 22HP 2(2) 24HP 2(2) 26HP 3(2) *(1) *(1) 28HP 3(3) 30HP 3(3)

  • Page 15: Nomenclature

    N: AC Inverter and H/P V: AC Inverter and C/O Indicates that this is System Indoor Unit using the R22 4.2 Outdoor Unit Serial Number Multi V PLUS unit S:2 Units Series R:3 Units Series Air Discharge Type S:Side Discharge T:Top Discharge Electrical Ratings 8:3Ø, 380 ~ 415V, 50Hz 9: 3Ø, 380V, 60Hz...

  • Page 16: Outdoor Units Information

    5. Outdoor Units Information CAUTION: A ratio of the connectable Indoor Units with the Outdoor Unit : within 50 ~ 130% Power Supply: Outdoor Unit (3Ø, 380 ~ 415V, 50Hz) Cooling Only Unit 1 Outdoor Unit(Half size) 1 Outdoor Unit System(HP) Model LRUV508T0...

  • Page 17: Heat Pump

    Heat Pump Unit 1 Outdoor Unit(Half size) 1 Outdoor Unit System(HP) Model LRUN508T0 LRUN608T0 LRUN808T0 LRUN1008T0 LRUN1208T0 LRUN1408T0 Product Charge CF(Correction Factor) Max. Connectable No. of Indoor Units Net Weight kg(lbs) 150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4) 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 Dimensions (W x H x D)

  • Page 18: Cooling Only

    Power Supply: Outdoor Unit (3Ø, 380V, 60Hz) Cooling Only Unit 1 Outdoor Unit(Half size) 1 Outdoor Unit System(HP) Model LRUV509T0 LRUV609T0 LRUV809T0 LRUV1009T0 LRUV1209T0 LRUV1409T0 Product Charge CF(Correction Factor) Max. Connectable No. of Indoor Units Net Weight kg(lbs) 150(330.7) 150(330.7) 150(330.7) 300(661.4) 300(661.4)
  • Page 19 Heat Pump Unit 1 Outdoor Unit(Half size) 1 Outdoor Unit System(HP) Model LRUN509T0 LRUN609T0 LRUN809T0 LRUN1009T0 LRUN1209T0 LRUN1409T0 Product Charge CF(Correction Factor) Max. Connectable No. of Indoor Units Net Weight kg(lbs) 150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4) 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 Dimensions (W x H x D) mm(inch) (31.7 x 61.2 x 28.7)
  • Page 20 Power Supply: Outdoor Unit (3Ø, 220V, 60Hz) Cooling Only Unit 1 Outdoor Unit System(HP) Model LRUV80BT0 LRUV100BT0 LRUV120BT0 Product Charge CF(Correction Factor) Max. Connectable No. of Indoor Units Net Weight kg(lbs) 300(661.4) 300(661.4) 300(661.4) 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 Dimensions (W x H x D) mm(inch)

  • Page 21: Indoor Units

    Indoor Units Service Manual 21...

  • Page 22: Ceiling Mounted Cassette Type (1Way)

    Ceiling Mounted Cassette Type (1Way) 1. Specifications ................23 2. Functions ..................27 3. Operation Details................28 4. Dimensional Drawings ...............30 5. Piping Diagrams .................31 6. Wiring Diagrams .................32 Indoor Unit...

  • Page 23: Specifications

    Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV076TCA(C)0 LRNV096TCA(C)0 LRNV126TCA(C)0 Model Unit 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h 7,165 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 860*390*180 860*390*180...

  • Page 24: Indoor Unit

    Specifications 2.1.2 Heat Pump Heat Pump (50Hz) LRNN076TCA(C)0 LRNN096TCA(C)0 LRNN126TCA(C)0 Model Unit 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 7,165 8,871 11,942 Btu/h 2,363 2,925 3,938 2,031 2,515 3,385 Heating Capacity kcal/h 8,061 9,980 13,435 Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 860*390*180...
  • Page 25 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only(60Hz) Model Unit LRNV072TCA(C)0 LRNV092TCA(C)0 LRNV122TCA(C)0 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h 7,165 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 860*390*180 860*390*180 860*390*180...
  • Page 26 Specifications 2.2.2 Heat Pump Heat Pump (60Hz) Model Unit LRNN072TCA(C)0 LRNN092TCA(C)0 LRNN122TCA(C)0 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 7,165 8,871 11,942 Btu/h 2,363 2,925 3,938 2,031 2,515 3,385 Heating Capacity kcal/h 8,061 9,980 13,435 Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 860*390*180...
  • Page 27 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (Thermistor) Room temperature control • Maintains the room temperature in accordance with the Setting temperature • Indoor fan is delayed for 5 seconds at the starting. Starting Current Control Time Delay Safety Control •...

  • Page 28: Operation Details

    Operation Details 3. Operation Details (1) The function of main control Time Delay Safety Control • 5sec Vertical louvers are delayed for 5 secs to be opened to prevent the frictional sound between louver and air flow. • 30sec The 4-way valve is ceased for 30sec. to prevent abnormal noise when the Heating operation is OFF or switched to the other operation mode while compress is off.

  • Page 29: Heating Mode Operation

    Operation Details Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as follows. Intake Air Temperature. minimum 3min Setting Temperature .+3°C (Compressor OFF) Setting Temperature (Compressor ON) minimum minimum 1min minimum...

  • Page 30: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings LRNV076TCA(C)0/LRNN076TCA(C)0/LRNV072TCA(C)0/LRNN072TCA(C)0 LRNV096TCA(C)0/LRNN096TCA(C)0/LRNV092TCA(C)0/LRNN092TCA(C)0 LRNV126TCA(C)0/LRNN126TCA(C)0/LRNV122TCA(C)0/LRNN122TCA(C)0 1,000 (Ceiling opening) 931.6 893.4 (Hanging bolt) 931.6 893.4 16.7 42.7 91.6 97.7 116.3 Ø80 141.8 Ø55 1050 694.5 (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection ø12.7 flare Drain pipe connection Power supply connection...

  • Page 31: Piping Diagrams

    Piping Diarams 5. Piping Diagrams :Cooling Heat Exchanger :Heating Filter C.F.F. Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid LRNV076TCA(C)0/LRNN076TCA(C)0/LRNV072TCA(C)0/LRNN072TCA(C)0 LRNV096TCA(C)0/LRNN096TCA(C)0/LRNV092TCA(C)0/LRNN092TCA(C)0 12.7(1/2) 6.35(1/4) LRNV126TCA(C)0/LRNN126TCA(C)0/LRNV122TCA(C)0/LRNN122TCA(C)0 Service Manual 31...

  • Page 32: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams CONNECTOR NUMBER SPEC COLOR DESCRIPTION CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 AC FAN MOTOR OUTPUT YELLOW MOTOR OUTPUT OF PHASE CONTROL CN-D/PUMP DRAIN PUMP OUTPUT WHITE AC OUTPUT FOR DRAIN PUMP CN-COMM COMMUNICATION WHITE...

  • Page 33: Ceiling Mounted Cassette Type (4 Way)

    Ceiling Mounted Cassette Type (4Way) 1. Specifications ................34 2. Functions ..................46 3. Operation Details................47 4. Dimensional Drawings ...............49 5. Piping Diagrams .................51 6. Wiring Diagrams .................52 Service Manual 33...
  • Page 34 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV126TEA(C)0 LRNV186TEA(C)0 LRNV216TDA(C)0 Model Unit 3,500 5,300 6,200 3,009 4,557 5,331 Cooling Capacity kcal/h 11,942 18,084 21,155 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 570*570*269 570*570*269...
  • Page 35 Specifications Cooling Only (50Hz) LRNV246TDA(C)0 LRNV286TDA(C)0 LRNV366TDA(C)0 Model Unit 7,000 8,200 10,600 6,019 7,052 9,116 Cooling Capacity kcal/h 23,885 27,995 36,168 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290 840*840*290 840*840*290 Body 33.0*33.0*11.4 33.0*33.0*11.4 33.0*33.0*11.4...
  • Page 36 Specifications Cooling Only (50Hz) LRNV386TDA(C)0 LRNV426TDA(C)0 LRNV486TDA(C)0 Model Unit 11,100 12,300 14,100 Cooling Capacity kcal/h 9,544 10,578 12,126 37,875 41,992 48,137 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290 840*840*290 840*840*290 Body inch 33.0*33.0*11.4 33.0*33.0*11.4...
  • Page 37 Specifications 2.1.2 Heat Pump Heat Pump (50Hz) LRNN126TEA(C)0 LRNN186TEA(C)0 LRNN216TDA(C)0 Model Unit 3,500 5,300 6,200 3,009 4,557 5,331 Cooling Capacity kcal/h Btu/h 11,942 18,084 21,155 3,938 5,963 6,975 3,385 5,127 5,997 Heating Capacity kcal/h 13,435 20,345 23,800 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing...
  • Page 38 Specifications Heat Pump (50Hz) LRNN246TDA(C)0 LRNN286TDA(C)0 LRNN366TDA(C)0 Model Unit 7,000 8,200 10,600 6,019 7,052 9,116 Cooling Capacity kcal/h 23,885 27,995 36,168 Btu/h 7,875 9,225 11,925 6,771 7,934 10,253 Heating Capacity kcal/h Btu/h 26,870 31,494 40,689 Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290...
  • Page 39 Specifications Heat Pump (50Hz) LRNN386TDA(C)0 LRNN426TDA(C)0 LRNN486TDA(C)0 Model Unit 11,100 12,300 14,100 Cooling Capacity kcal/h 9,544 10,578 12,126 37,875 41,992 48,137 Btu/h 12,487 13,838 15,863 10,737 11,040 13,156 Heating Capacity kcal/h 42,607 43,829 54,156 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290...
  • Page 40 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV122TEA(C)0 LRNV182TEA(C)0 LRNV212TDA(C)0 Model Unit 3,500 5,300 6,200 Cooling Capacity kcal/h 3,009 4,557 5,331 11,942 18,084 21,155 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 570*570*269 570*570*269...
  • Page 41 Specifications Cooling Only (60Hz) LRNV242TDA(C)0 LRNV282TDA(C)0 LRNV362TDA(C)0 Model Unit 7,000 8,200 10,600 6,019 7,052 9,116 Cooling Capacity kcal/h Btu/h 23,885 27,995 36,168 Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290 840*840*290 840*840*290 Body 33.0*33.0*11.4 33.0*33.0*11.4 33.0*33.0*11.4...
  • Page 42 Specifications Cooling Only (60Hz) LRNV382TDA(C)0 LRNV422TDA(C)0 LRNV482TDA(C)0 Model Unit 11,100 12,300 14,100 9,544 10,578 12,126 Cooling Capacity kcal/h Btu/h 37,875 41,992 48,137 Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290 840*840*290 840*840*290 Body 33.0*33.0*11.4 33.0*33.0*11.4 33.0*33.0*11.4...
  • Page 43 Specifications 2.2.2 Heat Pump Heat Pump (60Hz) Model Unit LRNN122TEA(C)0 LRNN182TEA(C)0 LRNN212TDA(C)0 3,500 5,300 6,200 Cooling Capacity kcal/h 3,009 4,557 5,331 11,942 18,084 21,155 Btu/h 3,938 5,963 6,975 3,385 5,127 5,997 Heating Capacity kcal/h 13,435 20,345 23,800 Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 570*570*269...
  • Page 44 Specifications Heat Pump (60Hz) LRNN242TDA(C)0 LRNN282TDA(C)0 LRNN362TDA(C)0 Model Unit 7,000 8,200 10,600 6,019 7,052 9,116 Cooling Capacity kcal/h Btu/h 23,885 27,995 36,168 7,875 9,225 11,925 Heating Capacity kcal/h 6,771 7,934 10,253 26,870 31,494 40,689 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290...
  • Page 45 Specifications Heat Pump (60Hz) LRNN382TDA(C)0 LRNN422TDA(C)0 LRNN482TDA(C)0 Model Unit 11,100 12,300 14,100 9,544 10,578 12,126 Cooling Capacity kcal/h Btu/h 37,875 41,992 48,137 12,487 13,838 15,863 Heating Capacity kcal/h 10,737 11,040 13,156 42,607 43,829 54,156 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 840*840*290...
  • Page 46 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (Thermistor) Room temperature control • Maintains the room temperature in accordance with the Setting Temperature. • Indoor fan is delayed for 5 seconds at the starting. Starting Current Control Time Delay Safety Control •...

  • Page 47: Operation Detail

    Operation detail 3. Operation detail (1) The function of main control Time Delay Safety Control • 5 sec ... Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind. • 5 sec ... The 4-way valve is ceased for 5 sec. to prevent the refrigerant-gas abnormal noise when the Heating operation is OFF or switched to the other operation mode when compress is off.
  • Page 48 Operation detail Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Intake Air temperature minimum 3min Setting Temperature .+3°C (Compressor OFF) Setting Temperature (Compressor ON) minimum minimum minimum 1min...

  • Page 49: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings LRNV126TEA(C)0/LRNN126TEA(C)0/LRNV12TEA(C)0/LRNN122TEA(C)0 LRNV186TEA(C)0/LRNN186TEA(C)0/LRNV182TEA(C)0/LRNN182TEA(C)0 600 (Ceiling opening) 521(Hanging bolt) 39.5 39.5 570 Unit size Unit:mm CLOSE OPEN OPEN CLOSE (unit : mm) Number Name Descripition Liquid pipe connection Unit Size(12k):Ø6.35, (18k):Ø9.52 Gas pipe connection Unit Size(12k):Ø12.7, (18k):Ø15.88 Drain pipe connection Power supply connection Air discharge grill...
  • Page 50 Dimensional Drawings LRNV216TDA(C)0 / LRNN216TDA(C)0 / LRNV212TDA(C)0 / LRNN212TDA(C)0 LRNV246TDA(C)0 / LRNN246TDA(C)0 / LRNV242TDA(C)0 / LRNN242TDA(C)0 LRNV286TDA(C)0 / LRNN286TDA(C)0 / LRNV282TDA(C)0 / LRNN282TDA(C)0 LRNV366TDA(C)0 / LRNN366TDA(C)0 / LRNV362TDA(C)0 / LRNN362TDA(C)0 LRNV386TDA(C)0 / LRNN386TDA(C)0 / LRNV382TDA(C)0 / LRNN382TDA(C)0 LRNV426TDA(C)0 / LRNN426TDA(C)0 / LRNV422TDA(C)0 / LRNN422TDA(C)0 LRNV486TDA(C)0 / LRNN486TDA(C)0 / LRNV482TDA(C)0 / LRNN482TDA(C)0 875 (Ceiling opening) 785(Hanging bolt)

  • Page 51: Heat Exchanger

    Piping Diagrams 5. Piping Diagrams :Cooling Heat Exchanger :Heating Filter Turbo Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid LRNV126TEA(C)0/LRNN126TEA(C)0/LRNV122TEA(C)0/LRNN122TEA(C)0 Ø12.7(1/2) Ø6.35(1/4) LRNV186TEA(C)0/LRNN186TEA(C)0/LRNV182TEA(C)0/LRNN182TEA(C)0 Ø15.88(5/8) Ø9.52(3/8) LRNV216TDA(C)0/LRNN216TDA(C)0/LRNV212TDA(C)0/LRNN212TDA(C)0 Ø15.88(5/8) Ø9.52(3/8) LRNV246TDA(C)0/LRNN246TDA(C)0/LRNV242TDA(C)0/LRNN242TDA(C)0 Ø15.88(5/8) Ø9.52(3/8) LRNV286TDA(C)0/LRNN286TDA(C)0/LRNV282TDA(C)0/LRNN282TDA(C)0 Ø15.88(5/8) Ø9.52(3/8) LRNV366TDA(C)0/LRNN366TDA(C)0/LRNV362TDA(C)0/LRNN362TDA(C)0 Ø19.05(3/4)
  • Page 52 Wiring Diagrams 6. Wiring Diagrams CONNECTOR NUMBER SPEC COLOR DESCRIPTION CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 AC FAN MOTOR OUTPUT YELLOW MOTOR OUTPUT OF PHASE CONTROL CN-D/PUMP DRAIN PUMP OUTPUT WHITE AC OUTPUT FOR DRAIN PUMP CN-COMM COMMUNICATION WHITE...

  • Page 53: Ceiling Concealed Duct Type (High Static)

    Ceiling Concealed Duct Type (High static) 1. Specifications ................54 2. Functions ..................66 3. Operation Details................67 4. Dimensional Drawings ...............69 5. Piping Diagrams .................70 6. Wiring Diagrams .................71 Service Manual 53...

  • Page 54: Specifi Cations

    Specifications 1. Specifi cations 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) Model Unit LRNV186BHA0 LRNV216BHA0 LRNV246BHA0 5,300 6,200 7,000 4,557 5,331 6,019 Cooling Capacity kcal/h Btu/h 18,084 21,155 23,885 Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 882*260*450...
  • Page 55 Specifications Cooling Only (50Hz) Model Unit LRNV286BGA0 LRNV366BGA0 LRNV386BGA0 8,200 10,600 11,100 7,052 9,116 9,544 Cooling Capacity kcal/h Btu/h 27,995 36,168 37,875 Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 1182*298*450 1182*298*450 1182*298*450 Dimensions (W*H*D) Body 46.5*10.2*17.7 46.5*10.2*17.7 46.5*10.2*17.7...
  • Page 56 Specifications Cooling Only (50Hz) LRNV426BGA0 LRNV486BEA0 Model Unit 12,300 14,100 10,578 12,126 Cooling Capacity kcal/h Btu/h 41,992 48,137 Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Casing 1182*298*450 1230*370*680 Dimensions (W*H*D) Body 46.5*10.2*17.7 48.4*14.6*26.8 inch Coil Rows x Columns x FPI 3*12*21 3*14*17 0.26...
  • Page 57 Specifications 1.1.2 Heat Pump Heat Pump (50Hz) LRNN186BHA0 LRNN216BHA0 LRNN246BHA0 Model Unit 5,300 6,200 7,000 4,557 5,331 6,019 Cooling Capacity kcal/h Btu/h 18,084 21,155 23,885 5,963 6,975 7,875 Heating Capacity kcal/h 5,127 5,997 6,771 20,345 23,800 26,870 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing...
  • Page 58 Specifications Heat Pump (50Hz) Model Unit LRNN286BGA0 LRNN366BGA0 LRNN386BGA0 8,200 10,600 11,100 7,052 9,116 9,544 Cooling Capacity kcal/h 27,995 36,168 37,875 Btu/h 9,225 11,925 12,487 Heating Capacity kcal/h 7,934 10,253 10,737 31,494 40,689 42,607 Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 1182*298*450 1182*298*450...
  • Page 59 Specifications Heat Pump (50Hz) Model Unit LRNN426BGA0 LRNN486BEA0 12,300 14,100 10,578 12,126 Cooling Capacity kcal/h 41,992 48,137 Btu/h 13,838 15,863 Heating Capacity kcal/h 11,040 13,156 43,829 54,156 Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate 1182*298*450 1230*370*680 Dimensions (W*H*D) Body 46.5*10.2*17.7 48.4*14.6*26.8 inch...
  • Page 60 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) Model Unit LRNV182BHA0 LRNV212BHA0 LRNV242BHA0 5,300 6,200 7,000 4,557 5,331 6,019 Cooling Capacity kcal/h 18,084 21,155 23,885 Btu/h Heating Capacity kcal/h Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 882*260*450 882*260*450 882*260*450...
  • Page 61 Specifications Cooling Only (60Hz) Model Unit LRNV282BGA0 LRNV362BGA0 LRNV382BGA0 8,200 10,600 11,100 7,052 9,116 9,544 Cooling Capacity kcal/h 27,995 36,168 37,875 Btu/h Heating Capacity kcal/h Btu/h Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 1182*298*450 1182*298*450 1182*298*450 Dimensions (W*H*D) Body 46.5*10.2*17.7 46.5*10.2*17.7 46.5*10.2*17.7...
  • Page 62 Specifications Cooling Only (60Hz) LRNV422BGA0 LRNV482BEA0 Model Unit 12,300 14,100 10,578 12,126 Cooling Capacity kcal/h 41,992 48,137 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Casing 1182*298*450 1230*370*680 Dimensions (W*H*D) Body 46.5*10.2*17.7 48.4*14.6*26.8 inch 3*12*21 3*14*17 Coil Rows x Columns x FPI 0.26 0.43...
  • Page 63 Specifications 1.1.2 Heat Pump Heat Pump (60Hz) LRNN182BHA0 LRNN212BHA0 LRNN242BHA0 Model Unit 5,300 6,200 7,000 4,557 5,331 6,019 Cooling Capacity kcal/h 18,084 21,155 23,885 Btu/h 5,963 6,975 7,875 5,127 5,997 6,771 Heating Capacity kcal/h Btu/h 20,345 23,800 26,870 Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing...
  • Page 64 Specifications Heat Pump (60Hz) LRNN282BGA0 LRNN362BGA0 LRNN382BGA0 Model Unit 8,200 10,600 11,100 Cooling Capacity kcal/h 7,052 9,116 9,544 27,995 36,168 37,875 Btu/h 9,225 11,925 12,487 7,934 10,253 10,737 Heating Capacity kcal/h 31,494 40,689 42,607 Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 1182*298*450...
  • Page 65 Specifications Heat Pump (60Hz) LRNN422BGA0 LRNN482BEA0 Model Unit 12,300 14,100 Cooling Capacity kcal/h 10,578 12,126 41,992 48,137 Btu/h 13,838 15,863 11,040 13,156 Heating Capacity kcal/h 43,829 54,156 Btu/h Galvanized Steel Plate Galvanized Steel Plate Casing 1182*298*450 1230*370*680 Dimensions (W*H*D) Body inch 46.5*10.2*17.7 48.4*14.6*26.8...
  • Page 66 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (Thermistor) Room temperature control • Maintains the room temperature in accordance with the Setting Temperature. • Indoor fan is delayed for 5 seconds at the starting. Starting Current Control Time Delay Safety Control •...
  • Page 67 Operation Details 3. Operation Details (1) The function of main control Time Delay safety Control • 30sec ... The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating operation is OFF or switched to the other operation mode while compress is off. While compressor is running, it takes 3~5 seconds to switch to another mode.
  • Page 68 Operation Details Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Intake Air Temperature minimum 3min Setting Temperature +3°C (Compressor OFF) Setting Temperature (Compressor ON) minimum minimum 1min 10sec.
  • Page 69 Dimensional Drawings 4. Dimensional Drawings LRNV186BHA0/LRNN186BHA0/LRNV182BHA0/LRNN182BHA0 LRNV366BGA0/LRNN366BGA0/LRNV362BGA0/LRNN362BGA0 LRNV216BHA0/LRNN216BHA0/LRNV212BHA0/LRNN212BHA0 LRNV386BGA0/LRNN386BGA0/LRNV382BGA0/LRNN382BGA0 LRNV246BHA0/LRNN246BHA0/LRNV242BHA0/LRNN242BHA0 LRNV426BGA0/LRNN426BGA0/LRNV422BGA0/LRNN422BGA0 LRNV286BGA0/LRNN286BGA0/LRNV282BGA0/LRNN282BGA0 LRNV486BEA0/LRNN486BEA0/LRNV482BEA0/LRNN482BEA0 (Unit: mm) Model 18/21/24 BH 932 882 355 45.5 450 163 260 61.5 243 212.3 243 110 130 30 158.5 28/36/38/42 BG 1232 1182 355 45.5 450 186 298 229.5 243 232 243 116 160 19 158.5 48 BE...
  • Page 70 Piping Diagrams 5. Piping Diagrams :Cooling Heat Exchanger :Heating Filter Sirocco Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] MODEL LIQUID LRNV186BHA0/LRNN186BHA0/LRNV182BHA0/LRNN182BHA0 Ø15.88(5/8) Ø9.52(3/8) LRNV216BHA0/LRNN216BHA0/LRNV212BHA0/LRNN212BHA0 Ø15.88(5/8) Ø9.52(3/8) LRNV246BHA0/LRNN246BHA0/LRNV242BHA0/LRNN242BHA0 Ø15.88(5/8) Ø9.52(3/8) LRNV286BGA0/LRNN286BGA0/LRNV282BGA0/LRNN282BGA0 Ø15.88(5/8) Ø9.52(3/8) LRNV366BGA0/LRNN366BGA0/LRNV362BGA0/LRNN362BGA0 Ø19.05(3/4) Ø9.52(3/8) LRNV386BGA0/LRNN386BGA0/LRNV382BGA0/LRNN382BGA0 Ø19.05(3/4)
  • Page 71 Wiring Diagrams 6. Wiring Diagrams BH Chassis ROOM PIPE IN FLOAT S/W SENSOR SENSOR CAPACITOR CN-ROOM CN-PIPE CN-FLOAT MAIN PCB ASSY CN-MOTOR PIPE-OUT INDOOR SENSOR MOTOR CN-D/PUMP DRAIN PUMP CN-POWER FUSE T3.15A REMOTE CONTROL CN-COMM BUS-A BUS-B 1(L) 2(N) 3(A) 4(B) POWER TO OUTDOOR UNIT INPUT...
  • Page 72 Wiring Diagrams BG Chassis ROOM PIPE-IN FLOAT S/W SENSOR SENSOR CAPACITOR CN-ROOM CN-PIPE CN-FLOAT MAIN PCB ASSY CN-MOTOR PIPE-OUT SENSOR MOTOR CN-D/PUMP DRAIN PUMP CN-POWER FUSE 250V 8A REMOTE CONTROL CN-COMM BUS-A BUS-B BR BL 1(L) 2(N) 3(A) 4(B) POWER 3854A20315F TO OUTDOOR UNIT INPUT...
  • Page 73 Wiring Diagrams B Chassis ROOM PIPE-IN FLOAT S/W SENSOR SENSOR CAPACITOR CN-ROOM CN-PIPE CN-FLOAT MAIN PCB ASSY CN-MOTOR PIPE-OUT SENSOR MOTOR CN-D/PUMP DRAIN PUMP CN-POWER FUSE T8A REMOTE CONTROL CN-COMM BUS-A BUS-B BR BL 1(L) 2(N) POWER TO OUTDOOR UNIT 3854A20315E INPUT CONNECTOR NUMBER...
  • Page 74 Indoor Unit...

  • Page 75: Ceiling Concealed Duct Type (Low Static)

    Ceiling Concealed Duct Type (Low static) 1. Specifications ................76 2. Functions ..................80 3. Operation Details................81 4. Dimensional Drawings ...............83 5. Piping Diagrams .................84 6. Wiring Diagrams .................85 Service Manual 75...
  • Page 76 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV076BTG(Q)0 LRNV096BTG(Q)0 LRNV126BTG(Q)0 Model Unit 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h 7,165 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 708*230*537 708*230*537...
  • Page 77 Specifications 1.1.2 Heat Pump Heat Pump (50Hz) LRNN076BTG(Q)0 LRNN096BTG(Q)0 LRNN126BTG(Q)0 Model Unit 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h 7,165 8,871 11,942 Btu/h 2,363 2,925 3,938 2,031 2,515 3,385 Heating Capacity kcal/h Btu/h 8,061 9,980 13,435 Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing...
  • Page 78 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV072BTG(Q)0 LRNV092BTG(Q)0 LRNV122BTG(Q)0 Model Unit 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 7,165 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing 708*230*537 708*230*537...
  • Page 79 Specifications 1.2.2 Heat Pump Heat Pump (60Hz) LRNN072BTG(Q)0 LRNN092BTG(Q)0 LRNN122BTG(Q)0 Model Unit 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 7,165 8,871 11,942 Btu/h 2,363 2,925 3,938 2,031 2,515 3,385 Heating Capacity kcal/h Btu/h 8,061 9,980 13,435 Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Casing...
  • Page 80 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (Thermistor) Room temperature control • Maintains the room temperature in accordance with the Setting Temperature. • Indoor fan is delayed for 5 seconds at the starting. Starting Current Control Time Delay Safety Control •...
  • Page 81 Operation Details 3. Operation Details (1) The function of main control Time Delay safety Control • 30sec ... The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating operation is OFF or switched to the other operation mode while compress is off. While compressor is running, it takes 3~5 seconds to switch to another mode.
  • Page 82 Operation Details Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Intake Air Temperature minimum 3min Setting Temperature +3°C (Compressor OFF) Setting Temperature (Compressor ON) minimum minimum 1min 10sec.

  • Page 83: Front View

    Dimensional Drawings 4. Dimensional Drawings LRNV076BTG(Q)0/LRNN076BTG(Q)0/LRNV072BTG(Q)0/LRNN072BTG(Q)0 LRNV096BTG(Q)0/LRNN096BTG(Q)0/LRNV092BTG(Q)0/LRNN092BTG(Q)0 LRNV126BTG(Q)0/LRNN126BTG(Q)0/LRNV122BTG(Q)0/LRNN122BTG(Q)0 Dimension Capacity 7k, 9k, 12k (unit: mm) Front view Top view (unit: mm) Inspection hole (600X600) Control box Suitable dimension "H" is necessary to get a slope to drain as figure Service Manual 83...
  • Page 84 Piping Diagrams 5. Piping Diagrams :Cooling Heat Exchanger :Heating Filter Sirocco Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] MODEL LIQUID LRNV076BTG(Q)0/LRNN076BTG(Q)0/LRNV072BTG(Q)0/LRNN072BTG(Q)0 Ø12.7(1/2) Ø6.35(1/4) LRNV096BTG(Q)0/LRNN096BTG(Q)0/LRNV092BTG(Q)0/LRNN092BTG(Q)0 Ø12.7(1/2) Ø6.35(1/4) LRNV126BTG(Q)0/LRNN126BTG(Q)0/LRNV122BTG(Q)0/LRNN122BTG(Q)0 Ø12.7(1/2) Ø6.35(1/4) Indoor Unit...
  • Page 85 Wiring Diagrams 6. Wiring Diagrams ROOM. IN-PIPE. OUT-PIPE. THERMISTOR THERMISTOR THERMISTOR FLOAT S/W CN-ROOM CN-PIPE CN-PIPE/O CN-LEV CN-FLOAT CN-COMM MAIN PCB ASSY BUS A BUS B CN-POWER GN/YL FUSE 250V 3.15A CN-INFANSUB CN-DISP CN-REMO CN-D/PNMP CN-MOTOR2 RF REMOTE REMOTE CONTROL CONTROL 3854A20362F CONNECTOR...
  • Page 86 Indoor Unit...

  • Page 87: Convertible Type

    Convertible Type 1. Specification ................88 2. Functions ..................92 3. Operation Details................93 4. Display Function ................99 5. Dimensional Drawings .............100 6. Piping Diagrams ...............101 7. Wiring Diagrams ...............102 8. Disassembly of the parts ..............103 Service Manual 87...
  • Page 88 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV186VBA0 LRNV246VBA0 Model Unit 5,300 7,000 Cooling Capacity kcal/h 4,557 6,019 18,084 23,885 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate+Painting Galvanized Steel Plate+Painting Dimensions (W*H*D) Body 1200*615*205 1200*615*205 inch Coil Rows x Columns x FPI...
  • Page 89 Specifications 1.1.2Heat Pump Heat Pump (50Hz) LRNN186VBA0 LRNN246VBA0 Model Unit 5,300 7,000 Cooling Capacity kcal/h 4,557 6,019 18,084 23,885 Btu/h 5,963 7,875 5,127 6,771 Heating Capacity kcal/h 20,345 26,870 Btu/h Galvanized Steel Plate+Painting Galvanized Steel Plate+Painting Dimensions (W*H*D) Body 1200*615*205 1200*615*205 inch Coil...
  • Page 90 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV182VBA0 LRNV242VBA0 Model Unit 5,300 7,000 Cooling Capacity kcal/h 4,557 6,019 18,084 23,885 Btu/h Heating Capacity kcal/h Btu/h Galvanized Steel Plate+Painting Galvanized Steel Plate+Painting Dimensions (W*H*D) Body 1200*615*205 1200*615*205 inch Coil Rows x Columns x FPI 47.2*24.2*8.1 47.2*24.2*8.1...
  • Page 91 Specifications 1.2.2Heat Pump Heat Pump (60Hz) LRNN182VBA0 LRNN242VBA0 Model Unit 5,300 7,000 Cooling Capacity kcal/h 4,557 6,019 18,084 23,885 Btu/h 5,963 7,875 5,127 6,771 Heating Capacity kcal/h Btu/h 20,345 26,870 Galvanized Steel Plate+Painting Galvanized Steel Plate+Painting Dimensions (W*H*D) Body 1200*615*205 1200*615*205 inch Coil...
  • Page 92 Installstion 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Maintains the room temperature in accordance with the Setting Temperature. Starting Current Control Indoor fan is delayed for 5 seconds at the starting. Time Delay Safety Control Restarting is inhibited for approx.

  • Page 93: Airflow Direction Control

    Operation Details 3. Operation Details (1) The function of main control Time Delay Safety Control • 3min … The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle. (Protection of compressor) • 5sec … Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind. •...
  • Page 94 Operation Details Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature COMP. ON (SET TEMPERATURE +0.5°C) COMP. OFF (SET TEMPERATURE -0.5°C) More than More than...
  • Page 95 Operation Details Natural wind by CHAOS logic For more fresh feeling than other fan speed mode, press the indoor fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by auto- matically changing fan speed according to the CHAOS logic.
  • Page 96 Operation Details Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. • For Heating Model Indoor piping temperature 28°C 26°C Intake Air temperature Setting temperature +3.0˚C (Compressor OFF) Setting temperature minimum...

  • Page 97: Soft Dry Operation

    Operation Details Soft Dry Operation • During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 1°C, the compressor OFF temperature is the setting temperature minus 0.5°C. • When the room temperature rises over the compressor ON temperature, the operation mode is switched to the cooling mode.

  • Page 98: Test Operation

    Operation Details Protection of the evaporator pipe from frosting mperature of the indoor coil is below -2°C after 7 minutes from starting the compressor, If the te the compressor and the outdoor fan is stopped, and then after 3 minute delay of the compressor and the temperature of the indoor coil is over 7°C, the compressor and the outdoor fan is reoper- ated.

  • Page 99: Display Function

    Display Function 4. Display Function Operation Indicator • Coolling, Soft Dry, Fan, Heating Timer Indicator • Timer Mode Sleep Timer Indicator • Sleep Mode Deice Indicator • Hot-start, Deice Note) For normal operation after checking by test mode, you should press SW1 nine times for resetting or recon- nect the power cord.
  • Page 100 Dimensional Drawings 5. Dimensional Drawings LRNV186VBA0/LRNN186VBA0/LRNV182VBA0/LRNN182VBA0 LRNV246VBA0/LRNN246VBA0/LRNV242VBA0/LRNN242VBA0 1 2 0 0 (Rear Side) More than 20cm More than 20cm More than 20cm More than 20cm More than eye-level (Ceiling installation) (Floor/Wall installation) 1076 Suspension bolt Center-line for the piping hole 1236 1 2 3 (Unit: mm)
  • Page 101 Piping Diagrams 6. Piping Diagrams :Cooling Heat Exchanger :Heating Filter C.F.F. Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid LRNV186VBA0/LRNN186VBA0/LRNV182VBA0/LRNN182VBA0 Ø15.88(5/8) Ø9.52(3/8) LRNV246VBA0/LRNN246VBA0/LRNV242VBA0/LRNN242VBA0 Ø15.88(5/8) Ø9.52(3/8) Service Manual 101...
  • Page 102 Wiring Diagrams 7. Wiring Diagrams TEMP. PIPE IN DOOR S/W1,2 THERMISTOR THERMISTOR CN-DOOR1,2 CN-ROOM CN-PIPE CAPACITOR CN-PIPE-OUT MAIN PCB ASSY CN-MOTOR INDOOR MOTOR STEP MOTOR CN-POWER STEP MOTOR FUSE T3.15A CN-COMM REMOTE BUS-A CONTROL BUS-B 1(L) 2(N) 3(A) 4(B) CN-DISP POWER TO OUTDOOR UNIT INPUT...

  • Page 103: Disassembly Of The Parts

    Disassembly of the parts 8. Disassembly of the parts Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. 1. Remove the air filter. • Pull the inlet grille slightly toward you. •...
  • Page 104 Disassembly of the parts 4. Remove air guide upper, crossflow fan and motor. • Remove the screws of both sides and center securing the upper air-guide. • Remove 2 screws fastening the bracket of door switch. Door Switch • Remove a bearing assembly by removing a screw and the bearing cover.
  • Page 105 Disassembly of the parts 6. Remove the front panel. Diffuser frame • Remove the screws of both sides fixing the Diffuser front panel. frame • Push the upper side of front panel strongly to Hook pull out the front panel from the inner hook of diffuser frame.
  • Page 106 Disassembly of the parts 9. Remove the vane-upper, vane-lower and step motor. Step Motor • Remove 2 screws securing the step motor Vane Supporter assembly and pull it out from the vanes care- fully. • Unhook the vanes from the vane supporter and remove the upper vane and lower vane by pulling the center of vanes with care.

  • Page 107: Wall Mounted Type

    Wall Mounted Type 1. Specification ................108 2. Functions ..................112 3. Operation Details..............113 4. Dimensional Drawings .............118 5. Piping Diagrams ...............119 6. Wiring Diagrams ...............120 7. Disassembly of the parts...............121 Service Manual 107...
  • Page 108 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV076SRA(L)0 LRNV096SRA(L)0 LRNV126SRA(L)0 LRNV186STA(L)0 Model Unit 2,100 2,600 3,500 5,300 Cooling Capacity kcal/h 1,806 2,235 3,009 4,557 7,165 8,871 11,942 18,084 Btu/h Heating Capacity kcal/h Btu/h 900*285*156 900*285*156 900*285*156 1090*314*172 Dimensions (W*H*D) Body 35.4*11.2*6.1...
  • Page 109 Specifications 1.1.2 Heat Pump Heat Pumps(50Hz) LRNN076SRA(L)0 LRNN0926RA(L)0 LRNN126SRA(L)0 LRNN186STA(L)0 Model Unit 2,100 2,600 3,500 5,300 Cooling Capacity kcal/h 1,806 2,235 3,009 4,557 7,165 8,871 11,942 18,084 Btu/h 2,363 2,925 3,938 5,963 2,031 2,515 3,385 5,127 Heating Capacity kcal/h 8,061 9,980 13,435 20,345...
  • Page 110 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV072SRA(L)0 LRNV092SRA(L)0 LRNV122SRA(L)0 LRNV182STA(L)0 Model Unit 2,100 2,600 3,500 5,300 Cooling Capacity kcal/h 1,806 2,235 3,009 4,557 7,165 8,871 11,942 18,084 Btu/h Heating Capacity kcal/h Btu/h 900*285*156 900*285*156 900*285*156 1090*314*172 Dimensions (W*H*D) Body 35.4*11.2*6.1 35.4*11.2*6.1 35.4*11.2*6.1...
  • Page 111 Specifications 1.1.2 Heat Pump Heat Pumps(60Hz) LRNN072SRA(L)0 LRNN092SRA(L)0 LRNN122SRA(L)0 LRNN182STA(L)0 Model Unit 2,100 2,600 3,500 5,300 Cooling Capacity kcal/h 1,806 2,235 3,009 4,557 7,165 8,871 11,942 18,084 Btu/h 2,363 2,925 3,938 5,963 2,031 2,515 3,385 5,127 Heating Capacity kcal/h Btu/h 8,061 9,980 13,435...
  • Page 112 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting temperature Starting Current Control • Indoor fan is delayed for 5 seconds at the starting. Time Delay Safety Control •...
  • Page 113 Operation Details 3. Operation Details (1) The function of main control • DISPLAY Operation Indicator • On while in appliance operation, off while in appliance pause Sleep Timer Indicator • On while in sleep timer mode, off when sleep timer cancel or appliance operation pause Timer Indicator •...
  • Page 114 Operation Details • While in compressor off, the indoor fan is off when the indoor pipe temperature is below 33°C, when above 35°C , it operates with the low airflow speed. • If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, the outdoor fan is turned on/off according to the indoor pipe temperature •...
  • Page 115 Operation Details 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temperature is 0.5°C or more below the setting temperature, the compressor is turned off. When 0.5°C or more above the setting temperature, the compressor is turned on.
  • Page 116 Operation Details Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote control, the on/off-timer operation is carried out according to the set time. Sleep Timer Operation • When the sleep time is reached after < 1,2,3,4,5,6,7,0(cancel) hour > is input by the remote control while in appliance operation, the operation of the appliance stops.
  • Page 117 Operation Details Forced Operation • Operation procedures when the remote control can't be used. • The operation will be started if the power button is pressed. • If you want to stop operation, re-press the button. Room temperature ≥ 24°C 21°C ≤...
  • Page 118 Dimiensional Drawings 4. Dimiensional Drawings LRNV076SRA(L)0/LRNN076SRA(L)0/LRNV072SRA(L)0/LRNN072SRA(L)0 LRNV096SRA(L)0/LRNN096SRA(L)0/LRNV092SRA(L)0/LRNN092SRA(L)0 LRNV126SRA(L)0/LRNN126SRA(L)0/LRNV122SRA(L)0/LRNN122SRA(L)0 LRNV186STA(L)0/LRNN186STA(L)0/LRNV182STA(L)0/LRNN182STA(L)0 More than More than 5cm More than More than 2.3m Installation plate Distance(mm) CHASSIS (Grade) Installation plate (7k/9k/12k) Ø70mm Ø70mm (18k) Left rear piping Right rear piping (unit:mm) Model LRNV076SRA(L)0/LRNN076SRA(L)0 LRNV072SRA(L)0/LRNN072SRA(L)0 LRNV096SRA(L)0/LRNN096SRA(L)0 LRNV092SRA(L)0/LRNN092SRA(L)0 LRNV126SRA(L)0/LRNN126SRA(L)0...
  • Page 119 Piping Diagrams 5. Piping Diagrams :Cooling Heat Exchanger :Heating Filter C.F.F Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] MODEL LIQUID LRNV076SRA(L)0/LRNN076SRA(L)0/LRNV072SRA(L)0/LRNN072SRA(L)0 Ø12.7(1/2) Ø6.35(1/4) LRNV096SRA(L)0/LRNN096SRA(L)0/LRNV092SRA(L)0/LRNN092SRA(L)0 Ø12.7(1/2) Ø6.35(1/4) LRNV126SRA(L)0/LRNN126SRA(L)0/LRNV122SRA(L)0/LRNN122SRA(L)0 Ø12.7(1/2) Ø6.35(1/4) LRNV186STA(L)0/LRNN186STA(L)0/LRNV182STA(L)0/LRNN182STA(L)0 Ø15.88(5/8) Ø9.52(3/8) Service Manual 119...
  • Page 120 Wiring Diagrams 6. Wiring Diagrams THERMISTOR AC PWB ASM THERMISTOR TRIAC MOTOR STEP SH-CAPA MOTOR STEP MOTOR FUSE AC250V/T2A H.V. CLEAN (PLASMA) DISP2 DISP1 POWER SW(FORCE) INPUT TO OUTDOOR UNIT DISPLAY PCB ASSY (OR TO OUTDOOR UNIT) 3854A20238A CONNECTOR NUMBER SPEC COLOR DESCRIPTION...
  • Page 121 Disassembly of the parts 7. Disassembly of the parts Warning : Disconnect the unit from power supply before mak- ing any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. • Set the up-and-down air discharge louver to open position (horizontally) by finger pressure.
  • Page 122 Disassembly of the parts 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. 3. To remove the Discharge Grille. • Pull the discharge grille out from the chas- sis carefully. 4.

  • Page 123: Art Cool Type(Deluxe)

    Art Cool Type(Deluxe) 1. Specification ................124 2. Functions ..................128 3. Operation Details..............129 4. Display Function...............135 5. Dimensional Drawings .............136 6. Piping Diagrams ...............137 7. Wiring Diagrams ...............138 8. Disassembly of the parts ............139 Service Manual 123...
  • Page 124 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) Model Unit LRNV076SU*0 LRNV096SU*0 LRNV126SU*0 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h Btu/h 7,165 8,871 11,942 Heating Capacity kcal/h Btu/h 1030*290*153 1030*290*153 1030*290*153 Dimensions (W*H*D) Body 40.6*11.4*6.1 40.6*11.4*6.1 40.6v11.4*6.1 inch...
  • Page 125 Specifications 1.1.2Heat Pump Heat Pump (50Hz) Model Unit LRNV186S3*0 LRNV246S3*0 5,300 7,000 4,557 6,019 Cooling Capacity kcal/h Btu/h 18,084 23,885 Heating Capacity kcal/h Btu/h 1170*315*170 1170*315*170 Dimensions (W*H*D) Body 46.1*12.4*6.8 46.1*12.4*6.8 inch 2*13*20 2*13*20 Coil Rows x Columns x FPI Face Area 0.15 0.15...
  • Page 126 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) Model Unit LRNN076SU*0 LRNN096SU*0 LRNN126SU*0 2,100 2,600 3,500 1,806 2,235 3,009 Cooling Capacity kcal/h 7,165 8,871 11,942 Btu/h 2,363 2,925 3,938 Heating Capacity kcal/h 2,031 2,515 3,385 8,061 9,980 13,435 Btu/h 1030*290*153 1030*290*153 1030*290*153...
  • Page 127 Specifications 1.2.2Heat Pump Heat Pump (60Hz) Model Unit LRNN186S3*0 LRNN246S3*0 5,300 7,000 4,557 6,019 Cooling Capacity kcal/h 18,084 23,885 Btu/h 5,963 7,875 Heating Capacity kcal/h 5,127 6,771 20,345 26,870 Btu/h 1170*315*170 1170*315*170 Dimensions (W*H*D) Body 46.1*12.4*6.8 46.1*12.4*6.8 inch 2*13*20 2*13*20 Coil Rows x Columns x FPI Face Area...
  • Page 128 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 sec at the starting. Time Delay Safety Control •...
  • Page 129 Operation Details 3. Operation Details 1. MAIN UNIT FUNCTION • DISPLAY Operation Indicator • ON while in appliance operation, OFF while in appliance pause. • Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on) Sleep Timer Indicator •...
  • Page 130 Operation Details Heating Mode Operation • When the intake air temp reaches +3°…above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor ON Temp. Setting Temp. Compressor OFF Temp. Setting Temp.+3°C •...
  • Page 131 Operation Details Fuzzy Operation • When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected. • When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds.
  • Page 132 Operation Details 3) Fuzzy Operation for Heating • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp Compressor OFF Temp...

  • Page 133: Jet Cool Mode Operation

    Operation Details Chaos Swing Mode • By the Chaos Swing key input, the upper/lower vane automatically operates with the Chaos Swing or they are fixed to the desired direction. • While in Chaos Swing mode, the angles of cooling and heating cycle operations are different. <...
  • Page 134 Operation Details Test operation • During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room temperature and resets in 18±1 minutes. • During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, open the front panel upward and Press the power button let it be pressed for about 3 seconds.
  • Page 135 Display Function 4. Display Function Signal Receptor Each Icon turns on when the unit is operated, then the only Icon outline to be operated is bright. Cooling Mode Lights up during Cooling operation. (Outline) Auto Operation Mode Lights up during Auto operation. (Outline) Healthy Dehumidification Lights up during Healthy Dehumidification operation.
  • Page 136 Dimensional Drawings 5. Dimensional Drawings LRNV076SU*0/LRNN076SU*0/LRNV072SU*0/LRNN072SU*0 LRNV096SU*0/LRNN096SU*0/LRNV092SU*0/LRNN092SU*0 LRNV126SU*0/LRNN126SU*0/LRNV122SU*0/LRNN122SU*0 LRNV186S3*0/LRNN186S3*0/LRNV182S3*0/LRNN182S3*0 LRNV246S3*0/LRNN246S3*0/LRNV242S3*0/LRNN242S3*0 More than 5cm More than 10cm More than More than 2.3m Installation plate Pipe See Note Drain Hose (unit : mm) Model LRNV076SU*0/LRNN076SU*0/LRNV072SU*0/LRNN072SU*0 LRNV096SU*0/LRNN096SU*0/LRNV092SU*0/LRNN092SU*0 1030 LRNV126SU*0/LRNN126SU*0/LRNV122SU*0/LRNN122SU*0 LRNV186S3*0/LRNN186S3*0/LRNV182S3*0/LRNN182S3*0 1170 LRNV246S3*0/LRNN246S3*0/LRNV242S3*0/LRNN242S3*0 1030 1030 Indoor Unit...
  • Page 137 Piping Diagrams 6. Piping Diagrams :Cooling Heat Exchanger :Heating Filter C.F.F Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] MODEL LIQUID LRNV076SU*0/LRNN076SU*0/LRNV072SU*0/LRNN072SU*0 Ø12.7(1/2) Ø6.35(1/4) LRNV096SU*0/LRNN096SU*0/LRNV092SU*0/LRNN092SU*0 Ø12.7(1/2) Ø6.35(1/4) LRNV126SU*0/LRNN126SU*0/LRNV122SU*0/LRNN122SU*0 Ø12.7(1/2) Ø6.35(1/4) LRNV186S3*0/LRNN186S3*0/LRNV182S3*0/LRNN182S3*0 Ø12.7(1/2) Ø6.35(1/4) LRNV246S3*0/LRNN246S3*0/LRNV242S3*0/LRNN242S3*0 Ø15.88(5/8) Ø9.52(3/8) *(Color):R(Mirror), M(Metal), B(Blue), D(Wood), W(White), C:Cherry Service Manual 137...
  • Page 138 Wiring Diagrams 7. Wiring Diagrams AC PWB ASM DC PWB ASM STEP MOTOR TRIAC STEP MOTOR MOTOR H.V. A/CL GN/YL BR YL ROOM SENSOR PIPE-IN SENSOR SH-CAPA PIPE-OUT SENSOR DISPLAY FUSE CN-LEV 250V AC/T2A BUS-A BUS-B BR BL WH BK CN-MAIN LIMIT S/W1 1(L) 2(N)
  • Page 139 Disassembly of the parts 8. Disassembly of the parts Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. • Hold up Inlet Grille Horizentally. •...
  • Page 140 Disassembly of the parts 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4.
  • Page 141 Disassembly of the parts • Unhook the tab on the right inside of the chassis at the same time, slightly pull the evaporator toward you until the tab is clear of the slot. 5. To remove the Motor Cover • Remove 2 securing screw. •...
  • Page 142 Indoor Unit...

  • Page 143: Art Cool Type

    Art Cool Type 1. Specification ................144 2. Functions ..................148 3. Operation Details..............149 4. Display Function ................154 5. Dimensional Drawings .............155 6. Piping Diagrams ...............156 7. Wiring Diagrams ...............157 8. Disassembly of the parts ............158 Service Manual 143...
  • Page 144 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) LRNV096SP*0 LRNV126SP*0 Model Unit 2,600 3,500 Cooling Capacity kcal/h 2,235 3,009 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h 570*568*137 570*568*137 Dimensions (W*H*D) Body 22.4*22.3*5.4 22.4*22.3*5.4 inch Coil Rows x Columns x FPI 1*18*21 1*18*21 0.16...
  • Page 145 Specifications 1.1.2 Heat Pump Heat Pump (50Hz) LRNN096SP*0 LRNN126SP*0 Model Unit 2,600 3,500 Cooling Capacity kcal/h 2,235 3,009 8,871 11,942 Btu/h 2,925 3,938 2,515 3,385 Heating Capacity kcal/h 9,980 13,435 Btu/h 570*568*137 570*568*137 Dimensions (W*H*D) Body 22.4*22.3*5.4 22.4*22.3*5.4 inch Coil Rows x Columns x FPI 1*18*21 1*18*21...
  • Page 146 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV092SP*0 LRNV122SP*0 Model Unit 2,600 3,500 Cooling Capacity kcal/h 2,235 3,009 8,871 11,942 Btu/h Heating Capacity kcal/h Btu/h 570*568*137 570*568*137 Dimensions (W*H*D) Body 22.4*22.3*5.4 22.4*22.3*5.4 inch Coil Rows x Columns x FPI 1*18*21 1*18*21 0.16...
  • Page 147 Specifications 1.2.2 Heat Pump Heat Pump (60Hz) LRNN092SP*0 LRNN122SP*0 Model Unit 2,600 3,500 Cooling Capacity kcal/h 2,235 3,009 8,871 11,942 Btu/h 2,925 3,938 2,515 3,385 Heating Capacity kcal/h Btu/h 9,980 13,435 570*568*137 570*568*137 Dimensions (W*H*D) Body 22.4*22.3*5.4 22.4*22.3*5.4 inch Coil Rows x Columns x FPI 1*18*21 1*18*21...
  • Page 148 Functons 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting temperature Starting Current Control • Indoor fan is delayed for 5 sec at the starting. Time Delay Safety Control •...
  • Page 149 Operation Details 3. Operation Details (1) MAIN UNIT FUNCTION • DISPLAY Operation Indicator • ON while in appliance operation, OFF while in appliance pause. • Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on) Sleep Timer Indicator •...
  • Page 150 Operation Details Heating Mode Operation • When the intake air temperature reaches +3°C above the setting temperature, the compressor is turned off. When below the setting temperature, the compressor is turned on. Compressor ON temperature Setting temperature Compressor OFF temperature Setting temperature+3°C •...
  • Page 151 Operation Details 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temperature is 0.5°C or more below the setting temperature, the compressor is turned off. When 0.5°C or more above the setting temperature, the compressor is turned on.

  • Page 152: Sleep Timer Operation

    Operation Details Off-Timer On-Timer Operation • When the set time is reached after the on/off time is input by the remote control, the on/off-timer operation is carried out according to the set time. Sleep Timer Operation • When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hour > is input by the remote control while in appliance operation, the operation of the appliance stops.
  • Page 153 Operation Details Forced Operation • Operation procedures when the remote control can't be used. • The operation will be started if the power button is pressed. • If you want to stop operation, re-press the button. Room temperature ≥ 24°C 21°C ≤...
  • Page 154 Display Function 4. Display Function Operation Indicator • Cooling, Soft Dry, Fan, Heating Sleep Timer Indicator • Sleep Mode Timer Indicator • Timer Mode Defrost Indicator • Hot-start, Defrost Indoor Unit...
  • Page 155 Dimensional Drawings 5. Dimensional Drawings LRNV096SP*0/LRNN096SP*0/LRNV092SP*0/LRNN092SP*0 LRNV126SP*0/LRNN126SP*0/LRNV122SP*0/LRNN122SP*0 More than 10cm Lower than 2.3m More than 50cm More than 50cm More than 2m or Higher than eye-level Pipe Hole Hanger Hole Fix Hole Model LRNV096SP*0/LRNN096SP*0/LRNV092SP*0/LRNN092SP*0 LRNV126SP*0/LRNN126SP*0/LRNV122SP*0/LRNN122SP*0 Service Manual 155...
  • Page 156 Piping Diagrams 6. Piping Diagrams :Cooling Heat Exchanger :Heating Filter Turbo Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid LRNV096SP*0/LRNN096SP*0/LRNV092SP*0/LRNN092SP*0 12.7(1/2) 6.35(1/4) LRNV126SP*0/LRNN126SP*0/LRNV122SP*0/LRNN122SP*0 *(Color): M(Metal), D(Wood), B(Blue) Indoor Unit...
  • Page 157 Wiring Diagrams 7. Wiring Diagrams MAIN PCB ASM THERMISTOR THERMISTOR MOTOR STEP MOTOR STEP MOTOR STEP FUSE MOTOR AC250V/T2A CN-D1 CN-D2 1(L) 2(N) 3(A) STEP DISPLAY CONNECT PCB ASM MOTOR PCB ASM POWER INPUT TO OUTDOOR UNIT (OR TO OUTDOOR UNIT) STEP MOTOR 3854A20238B...
  • Page 158 Disassembly of the parts 8. Disassembly of the parts Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. 1. To remove the Grille from the Chassis. - Pull the grille bottom, the remove 2 securing screws. - Lift the both lower parts of panel front.
  • Page 159 Disassembly of the parts 3. To remove the Evaporator. - Remove 4 screws securing the evaporator. - Pull the evaporator out from the chassis carefully. 4. Before removing the Turbo Fan. Air Guide - Remove the securing screws from the chassis. Top Cover - Pull the pipe cover, top cover and the air guide.
  • Page 160 Indoor Unit...

  • Page 161: Art Cool Type(Wide)

    Art Cool Type(Wide) 1. Specification ................162 2. Functions ..................166 3. Operation Details..............169 4. Display Function ................173 5. Dimensional Drawings .............174 6. Piping Diagrams ...............175 7. Wiring Diagrams ...............176 8. Disassembly of the parts ............177 Service Manual 161...
  • Page 162 Specifications 1. Specifications 1.1 50Hz 1.1.1 Cooling Only Cooling Only (50Hz) Model Unit LRNV126SV*0 LRNV186SV*0 3,500 5,300 3,009 4,557 Cooling Capacity kcal/h Btu/h 11,942 18,084 Heating Capacity kcal/h Btu/h 928*522*147 928*522*147 Dimensions (W*H*D) Body 36.5*20.6*5.8 36.5*20.6*5.8 inch 2*16*20 2*16*20 Coil Rows x Columns x FPI Face Area 0.24...
  • Page 163 Specifications 1.1.2 Heat Pump Heat Pump (50Hz) Model Unit LRNN126SV*0 LRNN186SV*0 3,500 5,300 3,009 4,557 Cooling Capacity kcal/h Btu/h 11,942 18,084 3,938 5,963 Heating Capacity kcal/h 3,385 5,127 13,435 20,345 Btu/h 928*522*147 928*522*147 Dimensions (W*H*D) Body 36.5*20.6*5.8 36.5*20.6*5.8 inch 2*16*20 2*16*20 Coil Rows x Columns x FPI...
  • Page 164 Specifications 1.2 60Hz 1.2.1 Cooling Only Cooling Only (60Hz) LRNV122SV*0 LRNV182SV*0 Model Unit 3,500 5,300 3,009 4,557 Cooling Capacity kcal/h Btu/h 11,942 18,084 Heating Capacity kcal/h Btu/h 928*522*147 928*522*147 Dimensions (W*H*D) Body inch 36.5*20.6*5.8 36.5*20.6*5.8 2*16*20 2*16*20 Coil Rows x Columns x FPI Face Area 0.24 0.24...
  • Page 165 Specifications 1.2.2 Heat Pump Heat Pump (60Hz) LRNN122SV*0 LRNN182SV*0 Model Unit 3,500 5,300 3,009 4,557 Cooling Capacity kcal/h Btu/h 11,942 18,084 3,938 5,963 3,385 5,127 Heating Capacity kcal/h 13,435 20,345 Btu/h 928*522*147 928*522*147 Dimensions (W*H*D) Body inch 36.5*20.6*5.8 36.5*20.6*5.8 2*16*20 2*16*20 Coil Rows x Columns x FPI...
  • Page 166 Functions 2. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 sec at the starting. Time Delay Safety Control •...
  • Page 167 Operation Details 3. Operation Details 1. MAIN UNIT FUNCTION • DISPLAY Operation Indicator • ON while in appliance operation, OFF while in appliance pause. • Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on) Sleep Timer Indicator •...
  • Page 168 Operation Details Heating Mode Operation • When the intake air temp reaches +3°…above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor ON Temp. Setting Temp. Compressor OFF Temp. Setting Temp.+3°C •...
  • Page 169 Operation Details Fuzzy Operation • When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected. • When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds.
  • Page 170 Operation Details 3) Fuzzy Operation for Heating • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp Compressor OFF Temp...
  • Page 171 Operation Details Chaos Swing Mode • By the Chaos Swing key input, the louvers vane automatically operate with the Chaos Swing or they are fixed to the desired direction. • While in Chaos Swing mode, the angles of cooling and heating cycle operations are different. <...
  • Page 172 Operation Details Auto restart • In case the power comes on again after a power failure, Auto Restarting Operation is the function to oper- ate procedures automatically to the previous operating conditions. Remote Control Operation Mode • When the remote control is selected by the slide switch on the main unit, the appliance operates according to the input by the remote control.
  • Page 173 Display Function 4. Display Function Operation Indicator • Cooling, Soft Dry, Fan, Heating Sleep Timer Indicator • Sleep Mode Timer Indicator • Timer Mode Defrost Indicator • Hot-start, Defrost Service Manual 173...
  • Page 174 Dimensional Drawings 5. Dimensional Drawings LRNV126SV*0/LRNN126SV*0/LRNV122SV*0/LRNN122SV*0 LRNV186SV*0/LRNN186SV*0/LRNV182SV*0/LRNN182SV*0 Pipe Hole Pipe Hole More than 10cm More than 50cm More than More than 2m 50cm 60mm 60mm (Unit: mm) Model LRNV126SV*0/LRNN126SV*0 LRNV122SV*0/LRNN122SV*0 LRNV186SV*0/LRNN186SV*0 LRNV182SV*0/LRNN182SV*0 Indoor Unit...
  • Page 175 Piping Diagrams 6. Piping Diagrams :Cooling Heat Exchanger :Heating Filter Turbo Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid LRNV126SV*0/LRNN126SV*0/LRNV122SV*0/LRNN122SV*0 Ø15.88(5/8) Ø9.52(3/8) LRNV186SV*0/LRNN186SV*0/LRNV182SV*0/LRNN182SV*0 Ø15.88(5/8) Ø9.52(3/8) *(Color): M(Metal), D(Wood), B(Blue) Service Manual 175...
  • Page 176 Wiring Diagrams 7. Wiring Diagrams TEMP. PIPE IN FLOAT S/W THERMISTOR THERMISTOR CAPACITOR CN-ROOM CN-PIPE CN-FLOAT MAIN PCB ASSY CN-MOTOR INDOOR MOTOR CN-D/PUMP DRAIN PUMP STEP CN-POWER MOTOR FUSE T3.15A REMOTE CONTROL CN-COMM BUS-A BUS-B CN-DISP 1(L) 2(N) 3(A) 4(B) DISPLAY PCB ASSY POWER TO OUTDOOR UNIT...
  • Page 177 Disassembly of the parts 8. Disassembly of the parts Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. 1. To remove the Grille from the Chassis. - Push mark[ ] on the grille bottom then pull it down and remove 3 securing screws.
  • Page 178 Disassembly of the parts 3. To remove the Evaporator. - Remove 4 screws securing the evaporator. - Pull the evaporator out from the chassis carefully. 4. Before removing the Turbo Fan. - Remove the securing screws from the chassis. Top Cover Air Guide - Pull the pipe cover, top cover and the air guide.

  • Page 179: Outdoor Units

    Outdoor unit Service Manual 179...

  • Page 180: Lruv/Lrun Series

    LRUV/LRUN Series 1. Specifications ................181 2. Function ..................203 3. Dimensions ................219 4. Piping Diagrams ...............223 5. Wiring Diagrams ...............232 Outdoor Unit...
  • Page 181 Specifications 1. Specifications 1.1 50Hz 380V, Cooling Only(50Hz) 1.1.1 Cooling Only 50Hz LRUV508T0 LRUV608T0 LRUV808T0 LRUV1008T0 Model Name Combination Unit LRUV508T0 LRUV608T0 LRUV808T0 LRUV1008T0 Independent Unit 14,000 16,000 22,400 28,000 Capacity Cooling 12,000 13,800 19,300 24,100 kcal/h 47,800 54,600 76,400 95,500 Btu/h Heating...
  • Page 182 Specifications 380V, Cooling Only(50Hz) LRUV1208T0 LRUV1408T0 LRUV1608TS0 LRUV1808TS0 Model Name Combination Unit LRUV1208T0 LRUV1408T0 LRUV808TS0 LRUV1008TS0 Independent Unit LRUC808TS0 LRUC808TS0 33,600 39,200 44,800 50,400 Capacity Cooling 28,900 33,700 38,500 43,300 kcal/h 114,700 133,800 152,900 172,000 Btu/h Heating kcal/h Btu/h Input Cooling 11.8 13.9...
  • Page 183 Specifications 380V, Cooling Only(50Hz) LRUV2008TS0 LRUV2208TS0 LRUV2408TS0 LRUV2608TR0 Model Name Combination Unit LRUV1008TS0 LRUV1208TS0 LRUV1208TS0 LRUV1008TR0 Independent Unit LRUC1008TS0 LRUC1008TS0 LRUC1208TS0 LRUC808TR0 LRUC808TR0 56,000 61,600 67,200 72,800 Capacity Cooling 48,200 53,000 57,800 62,600 kcal/h 191,100 210,200 229,300 248,400 Btu/h Heating kcal/h Btu/h Input...
  • Page 184 Specifications 380V, Cooling Only(50Hz) LRUV2808TR0 LRUV3008TR0 LRUV3208TR0 LRUV3408TR0 Model Name Combination Unit LRUV808TR0 LRUV1008TR0 LRUV1208TR0 LRUV1408TR0 Independent Unit LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 78,400 84,000 89,600 95,200 Capacity Cooling 67,400 72,200 77,100 81,900 kcal/h 267,500 286,600 305,700 324,800 Btu/h Heating...
  • Page 185 Specifications 380V, Cooling Only(50Hz) LRUV3608TR0 LRUV3808TR0 LRUV4008TR0 Model Name Combination Unit LRUV1208TR0 LRUV1408TR0 LRUV1608TR0 Independent Unit LRUC1208TR0 LRUC1208TR0 LRUC1208TR0 LRUC1208TR0 LRUC1208TR0 LRUC1208TR0 100,800 106,400 112,000 Capacity Cooling 86,700 91,500 96,300 kcal/h 343,900 363,100 382,200 Btu/h Heating kcal/h Btu/h Input Cooling 35.4 37.5 39.5...
  • Page 186 Specifications 1.1.2 Heat Pump 380V, Heat Pump(50Hz) LRUN508T0 LRUN608T0 LRUN808T0 LRUN1008T0 Model Name Combination Unit LRUN508T0 LRUN608T0 LRUN808T0 LRUN1008T0 Independent Unit 14,000 16,000 22,400 28,000 Capacity Cooling 12,000 13,800 19,300 24,100 kcal/h 47,800 54,600 76,400 95,500 Btu/h 15,800 18,000 25,200 31,500 Heating 13,600...
  • Page 187 Specifications 380V, Heat Pump(50Hz) LRUN1208T0 LRUN1408T0 LRUN1608TS0 LRUN1808TS0 Model Name Combination Unit LRUN1208T0 LRUN1408T0 LRUN808TS0 LRUN1008TS0 Independent Unit LRUH808TS0 LRUH808TS0 33,600 39,200 44,800 50,400 Capacity Cooling 28,900 33,700 38,500 43,300 kcal/h 114,700 133,800 152,900 172,000 Btu/h 37,800 44,100 50,400 56,700 Heating 32,500 37,900...
  • Page 188 Specifications 380V, Heat Pump(50Hz) LRUN2008TS0 LRUN2208TS0 LRUN2408TS0 LRUN2608TR0 Model Name Combination Unit LRUN1008TS0 LRUN1208TS0 LRUN1208TS0 LRUN1008TR0 Independent Unit LRUH1008TS0 LRUH1008TS0 LRUH1208TS0 LRUH808TR0 LRUH808TR0 56,000 61,600 67,200 72,800 Capacity Cooling 48,200 53,000 57,800 62,600 kcal/h 191,100 210,200 229,300 248,400 Btu/h 63,000 69,300 75,600 81,900...
  • Page 189 Specifications 380V, Heat Pump(50Hz) LRUN2808TR0 LRUN3008TR0 LRUN3208TR0 LRUN3408TR0 Model Name Combination Unit LRUN808TR0 LRUN1008TR0 LRUN1208TR0 LRUN1408TR0 Independent Unit LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 78,400 84,000 89,600 95,200 Capacity Cooling 67,400 72,200 77,100 81,900 kcal/h 267,500 286,600 305,700 324,800 Btu/h 88,200...
  • Page 190 Specifications 380V, Heat Pump(50Hz) LRUN3608TR0 LRUN3808TR0 LRUN4008TR0 Model Name Combination Unit LRUN1208TR0 LRUN1408TR0 LRUN1608TR0 Independent Unit LRUH1208TR0 LRUH1208TR0 LRUH1208TR0 LRUH1208TR0 LRUH1208TR0 LRUH1208TR0 100,800 106,400 112,000 Capacity Cooling 86,700 91,500 96,300 kcal/h 343,900 363,100 382,200 Btu/h 113,400 119,700 126,000 Heating 97,500 102,900 108,400 kcal/h...
  • Page 191 Specifications 1.2 60Hz 380V, Cooling Only(60Hz) 1.2.1 Cooling Only Model Name Combination Unit LRUV509T0 LRUV609T0 LRUV809T0 LRUV1009T0 LRUV509T0 LRUV609T0 LRUV809T0 LRUV1009T0 Independent Unit Capacity Cooling 14,000 16,000 22,400 28,000 kcal/h 12,000 13,800 19,300 24,100 47,800 54,600 76,400 95,500 Btu/h Heating kcal/h Btu/h Input...
  • Page 192 Specifications 380V, Cooling Only(60Hz) LRUV1209T0 LRUV1409T0 LRUV1609TS0 LRUV1809TS0 Model Name Combination Unit LRUV1209T0 LRUV1409T0 LRUV809TS0 LRUV1009TS0 Independent Unit LRUC809TS0 LRUC809TS0 33,600 39,200 44,800 50,400 Capacity Cooling 28,900 33,700 38,500 43,300 kcal/h 114,700 133,800 152,900 172,000 Btu/h Heating kcal/h Btu/h Input Cooling 11.8 13.9...
  • Page 193 Specifications 380V, Cooling Only(60Hz) LRUV2009TS0 LRUV2209TS0 LRUV2409TS0 LRUV2609TS0 Model Name Combination Unit LRUV1009TS0 LRUV1209TS0 LRUV1209TS0 LRUV1409TS0 Independent Unit LRUC1009TS0 LRUC1009TS0 LRUC1209TS0 LRUC1209TS0 56,000 61,600 67,200 72,800 Capacity Cooling 48,200 53,000 57,800 62,600 kcal/h 191,100 210,200 229,300 248,400 Btu/h Heating kcal/h Btu/h Input Cooling...
  • Page 194 Specifications 380V, Cooling Only(60Hz) LRUV2809TR0 LRUV3009TR0 LRUV3209TR0 LRUV3409TR0 Model Name Combination Unit LRUV809TR0 LRUV1009TR0 LRUV1209TR0 LRUV1409TR0 Independent Unit LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 78,400 84,000 89,600 95,200 Capacity Cooling 67,400 72,200 77,100 81,900 kcal/h 267,500 286,600 305,700 324,800 Btu/h Heating...
  • Page 195 Specifications 380V, Cooling Only(60Hz) LRUV3609TR0 LRUV3809TR0 LRUV4009TR0 Model Name Combination Unit LRUV1209TR0 LRUV1409TR0 LRUV1609TR0 Independent Unit LRUC1209TR0 LRUC1209TR0 LRUC1209TR0 LRUC1209TR0 LRUC1209TR0 LRUC1209TR0 100,800 106,400 112,000 Capacity Cooling 86,700 91,500 96,300 kcal/h 343,900 363,100 382,200 Btu/h Heating kcal/h Btu/h Input Cooling 35.4 37.5 39.5...
  • Page 196 Specifications 220V, Cooling Only(60Hz) Combination Unit LRUV80BT0 LRUV100BT0 LRUV120BT0 Model Name LRUV80BT0 LRUV100BT0 LRUV120BT0 Independent Unit Cooling 22,400 28,000 33,600 kcal/h 19,300 24,100 28,900 Capacity Btu/h 76,400 95,500 114,700 Heating kcal/h Btu/h Input Cooling 11.8 Heating Casing Color WARM GRAY WARM GRAY WARM GRAY Compressor...
  • Page 197 Specifications 380V, Heat Pump(60Hz) 1.2.2 Heat Pump Model Name Combination Unit LRUN509T0 LRUN609T0 LRUN809T0 LRUN1009T0 LRUN509T0 LRUN609T0 LRUN809T0 LRUN1009T0 Independent Unit 14,000 16,000 22,400 28,000 Capacity Cooling kcal/h 12,000 13,800 19,300 24,100 47,800 54,600 76,400 95,500 Btu/h Heating 15,800 18,000 25,200 31,500 13,600...
  • Page 198 Specifications 380V, Heat Pump(60Hz) LRUN1209T0 LRUN1409T0 LRUN1609TS0 LRUN1809TS0 Model Name Combination Unit LRUN1209T0 LRUN1409T0 LRUN809TS0 LRUN1009TS0 Independent Unit LRUH809TS0 LRUH809TS0 33,600 39,200 44,800 50,400 Capacity Cooling 28,900 33,700 38,500 43,300 kcal/h 114,700 133,800 152,900 172,000 Btu/h 37,800 44,100 50,400 56,700 Heating 32,500 37,900...
  • Page 199 Specifications 380V, Heat Pump(60Hz) LRUN2009TS0 LRUN2209TS0 LRUN2409TS0 LRUN2609TS0 Model Name Combination Unit LRUN1009TS0 LRUN1209TS0 LRUN1209TS0 LRUN1409TS0 Independent Unit LRUH1009TS0 LRUH1009TS0 LRUH1209TS0 LRUH1209TS0 56,000 61,600 67,200 72,800 Capacity Cooling 48,200 53,000 57,800 62,600 kcal/h 191,100 210,200 229,300 248,400 Btu/h 63,000 69,300 75,600 81,900 Heating...
  • Page 200 Specifications 380V, Heat Pump(60Hz) LRUN2809TR0 LRUN3009TR0 LRUN3209TR0 LRUN3409TR0 Model Name Combination Unit LRUN809TR0 LRUN1009TR0 LRUN1209TR0 LRUN1409TR0 Independent Unit LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 78,400 84,000 89,600 95,200 Capacity Cooling 67,400 72,200 77,100 81,900 kcal/h 267,500 286,600 305,700 324,800 Btu/h 88,200...
  • Page 201 Specifications 380V, Heat Pump(60Hz) LRUN3609TR0 LRUN3809TR0 LRUN4009TR0 Model Name Combination Unit LRUN1209TR0 LRUN1409TR0 LRUN1609TR0 Independent Unit LRUH1209TR0 LRUH1209TR0 LRUH1209TR0 LRUH1209TR0 LRUH1209TR0 LRUH1209TR0 100,800 106,400 112,000 Capacity Cooling 86,700 91,500 96,300 kcal/h 343,900 363,100 382,200 Btu/h 113,400 119,700 126,000 Heating 97,500 102,900 108,400 kcal/h...
  • Page 202 Specifications 220V, Heat Pump(60Hz) Combination Unit LRUN80BT0 LRUN100BT0 LRUN120BT0 Model Name LRUN80BT0 LRUN100BT0 LRUN120BT0 Independent Unit Cooling 22,400 28,000 33,600 kcal/h 19,300 24,100 28,900 Capacity Btu/h 76,400 95,500 114,700 Heating 25,200 31,500 37,800 kcal/h 21,700 27,100 32,500 Btu/h 86,000 107,500 129,000 Input Cooling...

  • Page 203: Table Of Contents

    Function 2. Function 1. Basic control................204 1.1 normal operation..............204 1.2 compressor control ...............204 1.3 main LEV control ..............204 1.4 subcooling LEV control ............205 1.5 Fan control................205 2.Special control................205 2.1 Oil return control ..............205 2.3 Oil equalizing control ............208 2.4 Stopping operation..............211 3.

  • Page 204: Normal Operation

    Function 1. Basic control 1.1 Normal operation Actuator Cooling operation Heating operation Stop state Compressor Fuzzy control Fuzzy control stop Fuzzy control Fuzzy control stop After 15min, Main LEV Full open Fuzzy control min. pulse 4 way valve After 15min, Off Subcooling After 15min, Fuzzy control...

  • Page 205: Subcooling Lev Control

    Function 1.4 subcooling LEV control Subcooling LEV works with fuzzy rules to maintain the subcooling degree at the outlet of subcooler during cooling mode Subcooling degree = Tcondensation -Tliquid Tliquid : temperature at outlet of subcooler(˚C) Tcondensation : condensation temperature equivalent to high pressure(˚C) 1.5 Fan control Main unit's fan motor operates with inverter drive by fuzzy control and sub units°Ø...
  • Page 206 Function Indoor unit Starting Running Ending Keep state Keep state Keep state Thermo on unit Oil return Oil return operation Return to pulse pulse base pulse Thermo off unit Oil return operation Close pulse Close pulse pulse Oil return operation time : 3 min for running step Oil return operation skip condition : if liquid injection begins, Oil return operation goes to ending operation 2.1.2 Oil return control on heating mode Component...
  • Page 207 Function 2.1.3 Compressor stage during oil return control Compressor stage at normal oil return state 2 unit combination : 60Hz + stage 2 3 unit combination : 60Hz + stage 3 4 unit combination : 60Hz + stage 4 High pressure limit Pressure range Compressor stage 2441 kPa...

  • Page 208: Oil Equalizing Control

    Function Indoor unit Starting Running Ending Thermo on unit Oil return Oil return operation Return to pulse pulse base pulse Thermo off unit Oil return operation Heating close pulse Heating close pulse pulse Ending condition 1) All Heat exchanger pipe temperature are above 15˚C 2) Defrost running time is over 20 min.
  • Page 209 Function 2.3 Oil equalizing control 2.3.2 Oil equalizing control on heating mode Component Starting Running Ending Inv Compressor Equalizing control Equalizing control Equalizing control Sub unit’s Equalizing control Equalizing control Equalizing control compressor Low pressure Low pressure Low pressure control control control Main LEV...
  • Page 210 Function 2.3.3 Equalizing control of compressors Equalizing control about sub unit which no compressor operates - No equalizing control works Equalizing control about sub unit which one compressor operates 1) Current compressor works for 2 min after oil equalizing control begins 2) Current compressor stops after 2 min.

  • Page 211: Stopping Operation

    Function 2.4 Stopping operation 2.4.1 Stopping operation on cooling mode Component Operation Note Inv Compressor 0 Hz Sub unit ’s compressor 0 Hz Main LEV Full open After 15 min from stop, min. 4 way valve Subcooling LEV Full open After 15 min from stop, min.
  • Page 212 Function 2.4.3 Stopping operation of sub units when only main unit operates Component Operation Sub unit ’s compressor Depends on main unit fan frequency Full open(cooling) Main LEV SH control(heating) 4 way valve Same state to main unit Hot gas bypass Normally Off Subcooling control(cooling) Subcooling LEV...

  • Page 213: Pressure Protection Control

    Function 3. Protection control 3.1 Pressure protection control 3.1.1 Pressure control on cooling mode High pressure control Hot gas Pressure range Compressor bypass Pc>2657kPa System stop 2441kPa <Pc ≤ 2657 kPa 5 Hz down/sec 10 Hz up/sec High pressure 2284kPa <Pc ≤ 2422kPa No frequency up control Low pressure...
  • Page 214 Function 3.1.2 Pressure control on heating mode High pressure control Hot gas Pressure range Compressor bypass Pc>2657kPa System stop 2441kPa <Pc ≤ 2657 kPa 5 Hz down/sec 5 Hz down/sec High pressure 2108kPa <Pc ≤ 2441kPa No frequency up control High pressure Low pressure Pc ≤...

  • Page 215: Discharge Temperature Control

    Function 3.2 Discharge temperature control Outdoor unit's control on cooling, heating mode Liquid Subcooling Temperature range Compressor injection Tdis >115 ˚C System stop If liquid injection is on, Max. limit 103< Tdis ≤ 115 ˚C No frequency up, 300 pulse After 2min 5Hz/30sec If liquid is on,...

  • Page 216: Inverter Protection Control

    Function 3.3 Inverter protection control item control AD-CT>245 System stop 230 ≤ AD-CT < 245 Inv compressor 5Hz down/sec AD-CT < 230 Inv. Compressor normal control System stop DC Peak High pressure switch System stop Low voltage System stop 3.4 Phase detection Main unit - Inverter PCB has phase fault detection circuit.

  • Page 217: Initial Setup

    Function 4. Other control 4.1 Initial setup - There are 4 initial setup steps before running. - All DIP switch setting must be completed before initial setup. 1) Step 1: Communication check - If all model code is displayed in 7 segment including all sub unit, communicaiton between outdoor units is normal.
  • Page 218 Function (4) DC peak control 1. Criterion for DC peak : if the fault signal from IPM (Intelligent Power Module) is occurred continuously for 1.8ms, then it is judged that DC peak occurred. 2. After inverter compressor turned off, 3minutes later if there is no DC peak signal, then restart compres- sor.
  • Page 219 Dimensions 3. Dimensions 3.1 1 Outdoor Unit(Half Size) 60(2.4) mm(inch) 806(31.5) mm(inch) 1555(61.2) mm(inch) 730(28.7) mm(inch) 1479(58.3) mm(inch) 700(27.6) mm(inch) 690(27.2) mm(inch) 500(19.7) mm(inch) 705(27.8) mm(inch) 48(1.9) mm(inch) 28(1.1) Service Manual 219...
  • Page 220 Dimensions 3.2 1 Outdoor Unit 60(2.4) mm(inch) 1280(50.4) mm(inch) 1555(61.2) mm(inch) 730(28.7) mm(inch) 1479(58.3) mm(inch) 700(27.6) mm(inch) 690(27.2) mm(inch) 900(35.4) mm(inch) 705(27.8) mm(inch) 48(1.9) mm(inch) 28(1.1) Outdoor Unit...
  • Page 221 Dimensions 3.2 2 Outdoor Unit 60(2.4) mm(inch) 1280(50.4) mm(inch) 1555(61.2) mm(inch) 730(28.7) mm(inch) 1479(58.3) mm(inch) 700(27.6) mm(inch) 690(27.2) mm(inch) 900(35.4) mm(inch) 10(0.4) mm(inch) 705(27.8) mm(inch) 48(1.9) mm(inch) 28(1.1) Notes: 1. High of walls in case of pattern1: 250mm or more Front side:1500mm, Suction side:500mm 10mm 10mm...
  • Page 222 Dimensions 3.2 3 Outdoor Unit 60(2.4) mm(inch) 1280(50.4) mm(inch) 1555(61.2) mm(inch) 730(28.7) mm(inch) 1479(58.3) mm(inch) 700(27.6) mm(inch) 690(27.2) mm(inch) 900(35.4) mm(inch) 10(0.4) mm(inch) 705(27.8) mm(inch) 48(1.9) mm(inch) 28(1.1) Notes: 1. High of walls in case of pattern1: 250mm or more Front side:1500mm, Suction side:500mm 10mm 10mm...
  • Page 223 Piping Diagrams 4. Piping Diagrams 4.1 Refrigerant Flow for Each Operation Mode 4.1.1 Cooling Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit...

  • Page 224: Heating Operation

    Piping Diagrams 4.1.2 Heating Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN Gas pipe Liquid pipe Accum.
  • Page 225 Piping Diagrams 4.1.3 Oil Return/Defrost Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN Gas pipe Liquid pipe Accum.

  • Page 226: Cooling Operation

    Piping Diagrams 4.2.1 Cooling Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN Gas pipe Liquid pipe Normal Accum.
  • Page 227 Piping Diagrams 4.2.2 Heating Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN Gas pipe Liquid pipe Normal Accum.
  • Page 228 Piping Diagrams 4.2.3 Oil Return/Defrost Operation :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN Gas pipe Liquid pipe Normal...
  • Page 229 Piping Diagrams 4.3.1 Cooling Operation(Series) :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN High/Low Pressure Common Gas pipe Liquid pipe Normal...
  • Page 230 Piping Diagrams 4.3.2 Heating Operation(Series) :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN High/Low Pressure Common Gas pipe Liquid pipe Normal...
  • Page 231 Piping Diagrams 4.3.3 Oil return/Defrost Operation(Series) :High temperature / High pressure gas :High temperature / High pressure liquid :Low temperature / Low pressure gas Heat Exchanger Heat Exchanger Filter Filter Filter Filter lndoor unit lndoor unit IM FAN IM FAN High/Low Pressure Common Gas pipe Liquid pipe...
  • Page 232 Wiring Diagrams 5. Wiring Diagrams 5.1 50Hz(380V) Main Outdoor Unit(5HP, 6HP, 8HP) Outdoor Unit...
  • Page 233 Wiring Diagrams 5.2 50Hz(380V) Main Outdoor Unit(8HP, 10HP, 12HP, 14HP) +CN2 Service Manual 233...
  • Page 234 Wiring Diagrams 5.3 50Hz(380V) Main Outdoor Unit(16~40HP) +CN2 Outdoor Unit...
  • Page 235 Wiring Diagrams 5.4 60Hz(380V) Main Outdoor Unit(5HP, 6HP, 8HP) Service Manual 235...
  • Page 236 Wiring Diagrams 5.5 60Hz(380V) Main Outdoor Unit(8HP, 10HP, 12HP, 14HP) +CN2 Outdoor Unit...
  • Page 237 Wiring Diagrams 5.6 60Hz(380V) Main Outdoor Unit(16~40HP) +CN2 Service Manual 237...
  • Page 238 Wiring Diagrams 5.7 50, 60Hz Sub Outdoor Unit(16~40HP) Outdoor Unit...
  • Page 239 Wiring Diagrams 5.8 60Hz(220V) Main Outdoor Unit(8HP, 10HP, 12HP) Service Manual 239...
  • Page 240 Wiring Diagrams Inverter Board CONNECTOR No. SPEC COLOR DESCRIPTION POWER AC POWER DC-LINK DC LINK VOLTAGE DETECT WRITE ON BOARD WRITING H/P, M GRAY HIGH PRESSURE MAGNETIC SWITCH PHASE 3 PHASE DETECT SIGNAL TRANXMISSION WITH CONTROL BOARD CN10, 11, 12 PWM SIGNAL CN13 PWM CONTROL POWER...
  • Page 241 Wiring Diagrams Sub Board CONNECTOR No. SPEC COLOR DESCRIPTION CN01 AC POWER IN AC POWER CN02 AC TRANS IN AC POWER TO TRANS CN03 AC TRANS OUT AC POWER FROM TRANS CN04 4WAY 4WAY REVERSING VALVE CN05 LIQ(A) CONSTANT(A) COMP LIQUID INJECTION VALVE CN06 LIQ(B) CONSTANT(B) COMP LIQUID INJECTION VALVE...
  • Page 242 Wiring Diagrams Inverter Board CN4 H/P, M CN1 POWER CN2 DC LINK CN6 SIGNAL CN5 PHASE CN3 WRITE CN10, CN11, CN12, CN13 IPM Outdoor Unit...
  • Page 243 Wiring Diagrams Main Board CN18 TO-JIG CN19 CEN-CONTROL/WRITE CN01 AC POWER IN CN20 TO FAN BOARD CN15 COOLING FAN CN21 INVERTER BOARD CN16 LEV-OUT CN17 LEV-SC CN04 4WAY CN05 LIQ(I) CN06 LIQ(C) OUT AIR CN25 CN07 HEATER(I ) S_PIPE(I) D_PIPE(C) CN08 HEATER(C ) D_PIPE(I) CN26...
  • Page 244 Wiring Diagrams Sub Board CN04 4WAY CN01 AC POWER IN CN18 FAN(R) CN22 TO JIG CN05 LIQ(A) CN06 LIQ(B) CN17 PHASE CN07 HEATER(A) CN20 LEV-OUT CN08 HEATER(B) CN21 LEV-SC CN10 HOT-GAS OUT AIR CN26 S_PIPE(A) D_PIPE(B) D_PIPE(A) CN27 HEX_PIPE(B) CN14 MAGNET(A) HEX_PIPE(A) SC-OUT CN28...

  • Page 245: Trouble Shooting Guide

    Trouble shooting guide Service Manual 245...
  • Page 246 Trouble shooting guide 1. The phenomena from main component failure ......247 2. Checking Method for Key Components ................248 2.1 Compressor ................249 2.2 Fan Motor ............250 2.3 Linear Empansion Valve ..............253 2.4 3Phase Bridge Diode ...........254 2.5 IPM(Integrated Power Module) ..................255 2.6 Other 3.
  • Page 247 The phenomena from main component failure 1. The phenomena from main component failure The phenomena from main component failure Component Phenomenon Cause Check method and Trouble shooting Not operating Motor insulation broken Check resistance between terminals and chassis Strainer locking Service necessary Oil shortage Open drain cock and check oil...
  • Page 248 2. Checking Method for Key Fompornents 2.1 Compressor Check and ensure in following order when error related with the compressor or error related with power occurs during operation: Checking Item Symptom Countermeasure Is how long power on during 1) Power on for 12 hours or more * Go to No.2.
  • Page 249 2.2 Fan Motor Checking Item Symptom Countermeasure (1) The fan motor does not 1) When power supply is * Modify connection status in front of or at the rear of operate. abnormal the breaker, or if the power terminal console is at Does failure appears frosting condition.
  • Page 250 Checking Method for Key Components 2.3 Linear Empansion Valve DC 12V Driving circuit ø5 ø4 ø4 White ø3 ø3 Yellow Orange ø2 ø2 Blue ø1 ø1 • Pulse signal output value and valve operation Output state Output(ø) No. ø1 ø2 ø3 ø4 •...
  • Page 251 Checking Method for Key Components • LEV Coil and body(Outdoor unit) Coil part Body Lead wire • Remove and assemble the coil Remove Assemble • Grip the A part tightly, and pull up coil part upward. When the coil part is removed or assembled, be careful not to bend the pipe of the body.
  • Page 252 Checking Method for Key Components • LEV failure check method * Attention: Outdoor unit LEV and Indoor unit LEV are different in specification, so the repair process may be different Failure mode Diagnosis Repair process Unit Microcomputer 1.Disconnect the LEV connector form control board and Check and replace Indoor Driving circuit...
  • Page 253 Checking Method for Key Components 2.4 3Phase Bridge Diode Internal circuit diagram Appearance 1. Unplug the + terminal of electrolytic capacitor from the + terminal of 3phase bridge diode 2. Set the multi meter to resistance mode Check and estimate the resistance between each pair of terminal (+, -), (+, ~(U)), (+, ~(V)), (+, ~(W)), (~(U), -), (~(V), -), (~(W), -), the estimated value should be large enough to Mega Ohm unit.
  • Page 254 Checking Method for Key Components 2.5 IPM(Integrated Power Module) Internal circuit diagram Appearance Array of IPM Pin 1. Unplug the +, – terminal of electrolytic capacitor from the P and N terminal of 2. Set the multi meter to resistance mode Check and estimate the resistance between each pair of terminal (P, N), (P, U), (P, V), (P, W), (U, N), (V, N), (W, N), the estimated value should be large enough to Mega Ohm unit.
  • Page 255 Checking Method for Key Components 2.6 Other Electrolytic capacitor and resistor for voltage distribution Guide of check electrolytic capacitor and resistor for voltage distribution 1) Disconnect an terminal of voltage distribution resistor from each DC link electrolytic capacitor 2) Set the multi meter to resistance mode, connect the probe to +,- terminal of the capacitor.
  • Page 256 Self-diagnosis function Parts Phenomena Cause Check and Countermeasures Compres No operation Destruction of motor insulation Measure resistor between com- pressor power terminal and sash Stop during operation Destruction of motor insulation Measure resistor between com- pressor power terminal and sash Loud noise during operation Connection wire Check power wiring of the com-...
  • Page 257 Self-diagnosis function 3. Self-diagnosis function Self-Diagnosis Function Error Indicator • This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. • Error mark is displayed on display window of Indoor Units and wired remote controller, and 7-segment LED of Outdoor Unit control board as shown in the table.
  • Page 258 Self-diagnosis function Display Title Cause of Error Current detect a(CT) sensor of Main Current detect (CT) sensor of Main Outdoor Unit Inverter Outdoor Unit Inverter compressor compressor open or short Open or short of discharge temperature sensor of Main Discharge temperature sensor of Main Outdoor Unit Inverter compressor Outdoor Unit Inverter compressor Open or short of Outdoor Low Pressure sensor of Main...
  • Page 259 Self-diagnosis function Display Title Cause of Error Compressor Off by excessive increase of discharge tempera- Discharge temperature of Main ture of constant speed compressor1 of the Sub1 Outdoor Outdoor constant speed compressor Unit 1 of Sub1 Outdoor Unit Discharge temperature of Main Compressor Off by excessive increase of discharge tempera- Outdoor constant speed compressor ture of constant speed compressor1 of the Sub2 Outdoor...
  • Page 260 Self-diagnosis function Display Title Cause of Error Sub1 Outdoor Unit constant speed Open or short of Sub1 Outdoor Unit constant speed com- compressor2 discharge temperature pressor2 discharge temperature sensor sensor Open or short of heat exchanger sensor of Sub1 Outdoor Sub1 Outdoor Unit heat exchanger Unit (front side) sensor (front side)
  • Page 261 Self-diagnosis function Display Title Cause of Error Low Pressure of Sub1 Outdoor Unit Compressor Off by excessive reduction of Sub2 Outdoor Unit Low Pressure Compressor Off by excessive increase of Sub2 Outdoor Unit High Pressure of Sub2 Outdoor Unit High Pressure (3Units) Low Pressure of Sub2 Outdoor Unit Compressor Off by excessive reduction of Sub2 Outdoor Unit...
  • Page 262 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display Error Item Meaning Major Error Occurrence Cause Air temperature sensor of the indoor unit Short or open of • Poor sensor connection Inlet pipe temperature indoor unit sensor • Short or open of sensor sensor of the indoor unit •...
  • Page 263 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display Error Item Meaning Major Error Occurrence Cause Communication error If failing to receive wired • Defective wired remote control between wired remote remote control signal at the • Defective indoor unit PCB controller and indoor unit indoor unit •...
  • Page 264 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display Error Item Meaning Major Error Occurrence Cause The float switch opens since • Malfunction of floater switch of the drain of condensed water is drain pump Drain pump error not done •...
  • Page 265 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display Error Item Meaning Major Error Occurrence Cause • Where connection of communication line is not Communication If failing to receive outdoor done error between unit signal at the indoor unit •...
  • Page 266 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display Error Meaning Major Error Occurrence Cause Item Different Where operating in different This error occurs if an indoor unit which is off operation operation mode from previously state is to operate in heating mode when one or mode operated indoor unit more indoor units are operated in cooling mode...
  • Page 267 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Excessive current flows in compressor power supply (U, V, W) Occurrence Poor inverter • Excessive heat of IPM of excessive compressor, poor •...
  • Page 268 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Pulled out or loose of inverter compressor terminal Maximum over Over current or • Defective compressor current (MAX CT) minimum current flows •...
  • Page 269 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Loose DC link terminal DC link voltage is not DC link voltage for • Defective start relay charged after relay on inverter •...
  • Page 270 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Failure of high pressure switch • Check outdoor fan and shielding of heat High pressure Compressor stops by exchanger on cooling mode switch of outdoor high pressure switch •...
  • Page 271 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Abnormal input power Low voltage/high Input voltage is More • Defective voltage detection circuit voltage than 487V or less than 270V Trouble shooting Flow Is input power normal? Check input power.
  • Page 272 Self-diagnosis function Fault diagnosis and Trouble shooting guide Major Error Error Error Item Meaning Display No. Occurrence Cause • Defective temperature sensor of 32: Discharge temperature of main outdoor unit Compressor stops compressor discharge pipe inverter compressor by high discharge •...
  • Page 273 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Failure of high pressure sensor or high 34: High pressure rise of Compressor stops by pressure sensor detection circuit part main outdoor unit excessive rise of high •...
  • Page 274 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Failure of low pressure sensor or low 35: Low pressure drop of Compressor stops by pressure sensor detection circuit part main outdoor unit excessive drop of low •...
  • Page 275 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Defective temperature sensor (open/short) Sensor error Abnormal measuring 40, 41, 42, 43, 44, • Defective PCB. value of sensor 45, 46, 47, 48, 65, (Open/Short) 113, 114, 115, 116, 117, 118, 120, 121,...
  • Page 276 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Excessive connection of indoor units Excessive capacity of Excessive connection compared to capacity of outdoor unit indoor units of indoor units •...
  • Page 277 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • No connection of communication line Communication error If failing to receive • Short or fusing of communication line (inverter PCB - main inverter signal at main •...
  • Page 278 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • No connection of communication line Communication error If failing to receive • Short or fusing of communication line (indoor unit - main PCB) indoor unit signal at •...
  • Page 279 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Abnormal inverter PCB 54: 3-phase wrong wiring 3-phase wrong wiring • No connection of R, S, T power of main outdoor unit of outdoor unit •...
  • Page 280 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Overheat of IPM Heatsink of inverter Overheat of inverter • Failure of cooling fan compressor heatsink Trouble shooting Flow Is the compressor IPM normal? Replace the compressor IPM.
  • Page 281 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • No connection of communication line Communication error Communication error • Short or fusing of communication line between outdoor units between outdoor units •...
  • Page 282 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • No connection of communication line Communication error Communication error • Short or fusing of communication line between main PCB and between main PCB •...
  • Page 283 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Fan lock Over-current of outdoor Over-current of • RPM down due to obstacle contact with unit fan motor (IPM fault) outdoor unit fan motor outdoor unit fan (IPM fault) •...
  • Page 284 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Failure of capacitor for controlling fan Low voltage of main Low voltage of main • Error of input power of fan PCB outdoor unit fan motor outdoor unit fan motor •...
  • Page 285 Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Error Item Meaning Major Error Occurrence Cause Display No. • Locking of 4way valve by foreign material, 4way valve Switch-over failure of aging, etc. 4way valve • Poor coils • Applied voltage of PCB is poor. Trouble shooting Flow Start of check.
  • Page 286 Self-diagnosis function Compressor. Start of check Is there difference between high pressure and low pressure after operation? Is R.S.T. power Check or reconnect power lines connection normal? Is signal normally applied Replace the PCB. from the PCB? Is current value normal when operating the compressor? Is the direction of...
  • Page 287 Self-diagnosis function Outdoor Unit LEV. Start of check. Do you feel Is power supplied to the initialization vibration when Replace the PCB. applying initial power? outdoor unit LEV? Is there temperature difference between front end and Replace the check valve. Is the check valve normal? rear end of LEV in cooling operation?
  • Page 288 Self-diagnosis function Excessive Cold LEV. Start of check. Is there temperature difference between front end Is connection of the Reconnect the terminal. and rear end of subcooling PCB terminal normal? LEV in cooling operation? Is signal applied normally Replace the PCB. from the PCB? Check LEV coils and replace the subcooling LEV.

  • Page 289: Way Valve

    Self-diagnosis function 4-Way Valve Start of check. Is difference between high pressure Solve compressor Does the compressor and low pressure more than problems. 3 air pressure 15 minutes normally operate? after operation? Is connection of the Reconnect the terminal. PCB terminal normal? Is voltage applied from Replace the PCB.
  • Page 290 Self-diagnosis function Check Valve (Parallel connected check valve in outdoor unit) Start of check. Is temperature difference between both ends Replace the of the check valve when operating check valve. the whole room in cooling mode? Is temperature difference between both ends Remove failures of the Is the outdoor unit LEV of the outdoor LEV when operating...

  • Page 291: Hot Gas Bypass Valve

    Self-diagnosis function Hot Gas Bypass Valve. Start of check. Is operation noise Replace coil. heard when applying solenoid valve power? Is temperature at the rear end of valve low and compressor discharge Replace the valve. temperature high when not operating solenoid valve coil during operation? Is temperature...
  • Page 292 Self-diagnosis function Liquid Injection Valve. Start of check. Is operation noise Replace coils. heard when applying solenoid valve power? Is temperature different between both ends of the valve when Replace the valve. the compressor discharge temperature is normal? No failure of liquid injection valve. Constant Speed Outdoor Unit Fan Start of check Reconnect the connector...

  • Page 293: Cooling Fan

    Self-diagnosis function Inverter Outdoor Unit Fan. Start of check Replace the fan Is contact between IPM and PCB normal? IPM board. Does the fan operate Does the fan operate in load condition of more than in load condition of more than 30% 30% cooling heating operation? operation?
  • Page 294 Self-diagnosis function Thermistor. Start of check • Check connector position and Is temperature on the LGMV connection direction. before operation normal? • Check any poor contact. Check and Is voltage output of 5V normal? replace the PCB. Replace the No failure of thermometer thermistor. thermistor.

  • Page 295: Pressure Switch

    Self-diagnosis function Pressure Switch. Start of check Does the compressor Turn power off of the pressure suddenly stop at pressure when the switch and restart pressure switch does not operate? Is the operation normal? No failure of pressure switch. Replace the pressure switch. Caution: If the system is operated for a long time with power off of the pressure switch, the pipe and parts of the system may be critically damaged.
  • Page 296 Trouble Shooting Guide...

  • Page 297: Appendix

    Appendix Service Manual 297...
  • Page 298 Position of the LED01Y in inverter board Position of the LED01Y in inverter board CRUN10080T Inverter board LED 01Y Trouble Shooting Guide...
  • Page 299 Resistance-Temperature Table Resistance-Temperature Table Thermistor: LNTA502HF Rmin Rcent Rmax DT(°C) Rmin Rcent Rmax DT(°C) 79.62 86.91 94.78 9.05% 1.42 1.649 1.736 1.826 5.20% 1.39 1.587 1.672 1.760 5.28% 1.42 75.02 81.79 89.08 8.92% 1.41 70.71 77.00 83.76 8.79% 1.40 1.527 1.610 1.697 5.36%...
  • Page 300 Resistance-Temperature Table Thermistor: 103HF Rmin Rcent Rmax DT(°C) Rmin Rcent Rmax DT(°C) 3.297 3.472 3.652 5.20% 1.39 159.2 173.8 189.6 9.05% 1.42 150.0 163.6 178.2 8.92% 1.41 3.173 3.344 3.520 5.28% 1.42 141.4 154.0 167.5 8.79% 1.40 3.054 3.221 3.394 5.36% 1.45 133.3...

  • Page 301: Low Pressure Sensor

    Voltage-Pressure Table Voltage-Pressure Table Low pressure sensor YSK S344 sensor 1000 Voltage, V Voltage, V P, kPa Tbub, °C Voltage, V P, kPa Tbub, °C Voltage, V P, kPa Tbub, °C -43.9 1.28 -13.2 2.06 0.53 -41.9 1.31 -12.5 2.09 0.56 -40.0 1.34...

  • Page 302: High Pressure Sensor

    Voltage-Pressure Table High pressure sensor YSK S345 sensor 3500 3000 2500 2000 1500 1000 Voltage, V Voltage, V P, kPa Tbub, °C Voltage, V P, kPa Tbub, °C Voltage, V P, kPa Tbub, °C 1.28 14.3 2.06 1661 38.0 2.84 2441 54.4 1.31...

  • Page 303: Exploded View & Replacement Parts List

    Exploded View & Replacement Parts List Service Manual 303...
  • Page 304 Exploded View & Replacement Parts List 7. Exploded View & Replacement Parts List Indoor Unit...
  • Page 305 Exploded View & Replacement Parts List PART No. LOCATION REMARK DESCRIPTION LRNN096TCA0 LRNV092TCC0 LRNV122TCC0 130911 CABINET ASSEMBLY,INDOOR 3091A10024A 3091A10024A 3091A10024A 146811 MOTOR ASSEMBLY,STEP 4681AR2727G 4681AR2727G 4681AR2727G 152312 FILTER ASSEMBLY,AIR CLEANER_1 5231A10003A 5231A10003A 5231A10003A 158591 PUMP ASSEMBLY,WATER 5859A10001A 5859A10001A 5859A10001A 137211 PANEL ASSEMBLY,FRONT 3721A10069K 3721A10069J...
  • Page 306 PART No. LOCATION REMARK DESCRIPTION LRNN076TCA0 LRNV092TCA0 LRNN126TCA0 LRNV126TCA0 130911 CABINET ASSEMBLY,INDOOR 3091A10024A 3091A10024A 3091A10024A 3091A10024A 146811 MOTOR ASSEMBLY,STEP 4681AR2727G 4681AR2727G 4681AR2727G 4681AR2727G 152312 FILTER ASSEMBLY,AIR CLEANER_1 5231A10003A 5231A10003A 5231A10003A 5231A10003A 158591 PUMP ASSEMBLY,WATER 5859A10001A 5859A10001A 5859A10001A 5859A10001A 137211 PANEL ASSEMBLY,FRONT 3721A10069K 3721A10069H 3721A10069K...
  • Page 307 249951 266090 249941 249941 W6640 268714 263230-1 159830 135511 668713 249951 352115 352118 263230-2 263230-3 349611 158591 266012 330870 Service Manual 307...
  • Page 308 Explodede View & Replacement Parts List 130412 349600 W0CZZ 346810 359012 146811 268712 140570 435310 152312 130911-2 135314 135802 137211 267110 738290 152510-2 130911-1 R 'S 152510-1 Indoor Unit...
  • Page 309 Explodede View & Replacement Parts List PART No. LOCATION REMARK DESCRIPTION LRNV126TEA0 LRNN126TEA0 LRNV186TEA0 LRNN186TEA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10013A 3041A10013A 3041A10013A 3041A10013A 130911 CABINET ASSEMBLY,INDOOR 3091A10023C 3091A10023C 3091A10023C 3091A10023C 130911 CABINET ASSEMBLY,INDOOR 3091A10023D 3091A10023D 3091A10023D 3091A10023D 135314 GRILLE,INLET 3530A10065A 3530A10065A 3530A10065A 3530A10065A 137211...
  • Page 310 Explodede View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNV182TEC0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10013A 130911 CABINET ASSEMBLY,INDOOR 3091A10023C 130911 CABINET ASSEMBLY,INDOOR 3091A10023D 135314 GRILLE,INLET 3530A10065A 135511 COVER 3550A20034A 135802 DOOR 3580A20005A 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3721A10021S 140570 LOCKER 4056A20001A 146811 MOTOR ASSEMBLY,STEP...
  • Page 311 Explodede View & Replacement Parts List 249951 249941 266090 249941 159830 268714 W6640 263230-3 249951 135511 354211-1 130412 354211-2 352114 55211G 352115 263230-1 263230-2 352118 330870 158591 266012 Service Manual 311...
  • Page 312 Explodede View & Replacement Parts List 130412 135500 W0CZZ 648600 146811 268712 349600 346810 435310 152312 359012 130911-2 140570 130911-3 135314 135802 137211 130911-4 152510-2 R 'S 130911-1 738290 267110 152510-1 Indoor Unit...
  • Page 313 Explodede View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN216TDA0 LRNN212TDA0 LRNV246TDA0 LRNN246TDA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10016A 3041A10016A 3041A10016A 3041A10016A 130911 CABINET ASSEMBLY,WELD 3091A10030A 3091A10030A 3091A10030D 3091A10030A 130911 CABINET ASSEMBLY,WELD 3091A10030B 3091A10030B 3091A10030E 3091A10030B 130911 CABINET ASSY,INDOOR 3091A10031A 3091A10031A 3091A10031C 3091A10031A...
  • Page 314 Explodede View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN242TDA0 LRNV286TDA0 LRNN286TDA0 LRNV282TDA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10016A 3041A10016A 3041A10016A 3041A10016A 130911 CABINET ASSEMBLY,WELD 3091A10030A 3091A10030D 3091A10030A 3091A10030A 130911 CABINET ASSEMBLY,WELD 3091A10030B 3091A10030E 3091A10030B 3091A10030B 130911 CABINET ASSY,INDOOR 3091A10031A 3091A10031C 3091A10031A 3091A10031A...
  • Page 315 Explodede View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV366TDA0 LRNN366TDA0 LRNV362TDA0 LRNN362TDA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10016A 3041A10016A 3041A10016A 3041A10016A 130911 CABINET ASSEMBLY,WELD 3091A10030D 3091A10030A 3091A10031A 3091A10030A 130911 CABINET ASSEMBLY,WELD 3091A10030E 3091A10030B 3091A10031B 3091A10030B 130911 CABINET ASSY,INDOOR 3091A10031C 3091A10031A 3091A10030A 3091A10031A...
  • Page 316 Explodede View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN386TDA0 LRNN426TDA0 LRNV482TDA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10016A 3041A10016A 3041A10016A 130911 CABINET ASSEMBLY,WELD 3091A10030A 3091A10030A 3091A10031A 130911 CABINET ASSEMBLY,WELD 3091A10030B 3091A10030B 3091A10031B 130911 CABINET ASSY,INDOOR 3091A10031A 3091A10031A 3091A10030A 130911 CABINET ASSY,INDOOR 3091A10031B 3091A10031B 3091A10030B...
  • Page 317 Explodede View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV486TDA0 LRNN486TDA0 130412 BASE ASSEMBLY,WELD[INDOOR] 3041A10016A 3041A10016A 130911 CABINET ASSEMBLY,WELD 3091A10030D 3091A10030A 130911 CABINET ASSEMBLY,WELD 3091A10030E 3091A10030B 130911 CABINET ASSY,INDOOR 3091A10031C 3091A10031A 130911 CABINET ASSY,INDOOR 3091A10031D 3091A10031B 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3721A10025B 3721A10025A 135511...
  • Page 318 Exploded View & Replacement Parts List 346810 359012 359012 149900 137213 336600 336600 137214 W0CZZ 263230 263230 267110 137213 354210 263230 268714 249951 152302 352118 437213 35211G 266012 330870 158591 437213 Indoor Unit...
  • Page 319 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV182BHA0 LRNV212BHA0 LRNV242BHA0 LRNV246BHA0 359012 FAN ASSEMBLY,BLOWER 5901A10028T 5901A10028T 5901A10028T 5901A10028T 336600 HOUSING (MECH),WRAPPER 3660A20017A 3660A20017A 3660A20017A 3660A20017A 336600 HOUSING (MECH),WRAPPER 3660A20018A 3660A20018A 3660A20018A 3660A20018A 346810 MOTOR ASSEMBLY,INDOOR 4681A10013C 4681A10013C 4681A10013C 4681A10013C 359012...
  • Page 320 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN182BHA0 LRNN186BHA0 LRNN212BHA0 LRNN242BHA0 LRNN246BHA0 359012 FAN ASSEMBLY,BLOWER 5901A10028T 5901A10028T 5901A10028T 5901A10028T 5901A10028T 336600 HOUSING (MECH),WRAPPER 3660A20017A 3660A20017A 3660A20017A 3660A20017A 3660A20017A 336600 HOUSING (MECH),WRAPPER 3660A20018A 3660A20018A 3660A20018A 3660A20018A 3660A20018A 346810 MOTOR ASSEMBLY,INDOOR 4681A10013C 4681A10013C 4681A10013C 4681A10013C 4681A10013C...
  • Page 321 Exploded View & Replacement Parts List 346810 359012 359012 149900 137213 336600 336600 137214 W0CZZ 263230 263230 267110 137213 354210 263230 268714 249951 152302 352118 437213 35211G 266012 330870 158591 437213 Service Manual 321...
  • Page 322 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV282BGA0 LRNV382BGA0 LRNN286BGA0 LRNN366BGA0 359012 FAN ASSEMBLY,BLOWER 5901A10028U 5901A10028A 5901A10028V 5901A10028U 336600 HOUSING (MECH),WRAPPER 3660A20019A 3660A20019A 3660A20019A 3660A20019A 336600 HOUSING (MECH),WRAPPER 3660A20020A 3660A20020A 3660A20020A 3660A20020A 346810 MOTOR ASSEMBLY,INDOOR 4681A10013P 4681A10013A 4681A10013A 4681A10013P 359012...
  • Page 323 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN426BGA0 LRNN362BGA0 359012 FAN ASSEMBLY,BLOWER 5901A10028V 5901A10028V 336600 HOUSING (MECH),WRAPPER 3660A20019A 3660A20019A 336600 HOUSING (MECH),WRAPPER 3660A20020A 3660A20020A 346810 MOTOR ASSEMBLY,INDOOR 4681A10013A 4681A10013A 359012 FAN ASSEMBLY,BLOWER 5901A10026A 5901A10026A W0CZZ CAPACITOR,DRAWING 2A00986D 2A00986D 354210...
  • Page 324 Exploded View & Replacement Parts List 137214 359012 336610 359012 346810 359012 336610 149900 149900 354210 137213 152302 W0CZZ 330870 352118 263230-1 55211G 267110 249951 266012 263230 263230 158591 237205 263230 437213 268714 Indoor Unit...
  • Page 325 Exploded View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNN486BEA0 LRNV482BEA0 359012 FAN ASSEMBLY,BLOWER 5901A20001F 5901A20001E 336610 HOUSING ASSY (MECH) 3661A10009E 3661A20001E 336610 HOUSING ASSY (MECH) 3661A10009F 3661A20001F 346810 MOTOR ASSEMBLY,INDOOR 4681A20005K 4681A20005J W0CZZ CAPACITOR,DRAWING 0CZZA20001C 0CZZA20001C 359012 FAN ASSEMBLY,BLOWER 5901A10015E...
  • Page 326 Exploded View & Replacement Parts List 237203 336610 263230-1 152302 263230-2 359012 263230-3 346810 267110 354210 W0CZZ 352116 55211G 268714 330860 249951 Indoor Unit...
  • Page 327 Exploded View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNN076BTG0 LRNN096BTG0 LRNN126BTG0 152302 FILTER(MECH),A/C 5230A30001Q 5230A30001Q 5230A30001Q 158580 PUMP ASSEMBLY,WATER 5859A10005A 5859A10005A 5859A10005A 237203 PANEL ASSEMBLY,UPPER 3721A20150B 3721A20150B 3721A20150B 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20514C 4995A20514D 4995A20514E 263230 THERMISTOR ASSEMBLY 6323A30004D 6323A30004D...
  • Page 328 Exploded View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNV092BTQ0 LRNV122BTQ0 152302 FILTER(MECH),A/C 5230A30001Q 5230A30001Q 158580 PUMP ASSEMBLY,WATER 5859A10005A 5859A10005A 159830 AIR CLEANER ASSEMBLY 5983A10003A 5983A10002A 237203 PANEL ASSEMBLY,UPPER 3721A20150B 3721A20150B 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20338X 4995A20338W 263230 THERMISTOR ASSEMBLY 6323A30004D...
  • Page 329 Exploded View & Replacement Parts List Service Manual 329...
  • Page 330 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN076SRA0 LRNN096SRA0 LRNN126SRA0 LRNV126SRA0 131410 CHASSIS ASSEMBLY 3141A20005E 3141A20005E 3141A20005E 3141A20005E 346810 MOTOR ASSEMBLY,INDOOR 4681A20048J 4681A20048J 4681A20048L 4681A20048L 135516 COVER ASSEMBLY,MOTOR 3551A20050A 3551A20050A 3551A20050A 3551A20050A 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A 359011 FAN ASSEMBLY, CROSS FLOW 5901A20007A...
  • Page 331 Exploded View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNN092SRA0 LRNN122SRA0 131410 CHASSIS ASSEMBLY 3141A20005E 3141A20005E 346810 MOTOR ASSEMBLY,INDOOR 4681A20048C 4681A20048C 135516 COVER ASSEMBLY,MOTOR 3551A20050A 3551A20050A 342800 BEARING 4280A20004A 4280A20004A 359011 FAN ASSEMBLY, CROSS FLOW 5901A20007A 5901A20007A 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10192E...
  • Page 332 Exploded View & Replacement Parts List Indoor Unit...
  • Page 333 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNN186STA0 LRNN182STA0 LRNV186STA0 LRNV182STL0 131410 CHASSIS ASSEMBLY 3141A10002A 3141A10002A 3141A10002A 3141A10002A 346810 MOTOR ASSEMBLY,INDOOR 4681A20003D 4681A20003B 4681A20003D 4681A20003B 135516 COVER ASSEMBLY,MOTOR 3551A20099C 3551A20099C 3551A20099C 3551A20099C 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A 359011 FAN ASSEMBLY, CROSS FLOW 5901A20008A...
  • Page 334 Exploded View & Replacement Parts List 135316 146811 152302 668713-1 146811-1 668713-2 135080-1 263020 135080-2 263230-2 263230-1 733010 267110 359011 159830 342800 266090 354212 131410 346810 352150 249951 352114 352118 W0CZZ 330860 35211B 249941 146811 159901 268716 135311 248715 268715 Indoor Unit...
  • Page 335 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV072SUD0 LRNV092SUD0 LRNV122SUD0 LRNN126SUR0 131410 CHASSIS ASSEMBLY 3141A20007E 3141A20007E 3141A20007E 3141A20007E 346810 MOTOR ASSEMBLY,INDOOR 4681A20048F 4681A20048F 4681A20048F 4681A20048L 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10137B 3531A10137B 3531A10137B 3531A10137B 146811 MOTOR ASSEMBLY,STEP 4681A20055A...
  • Page 336 Exploded View & Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION LRNV182S3D0 LRNN186S3R0 131410 CHASSIS ASSEMBLY 3141A20012A 3141A20012A 346810 MOTOR ASSEMBLY,INDOOR 4681A20003B 4681A20067A 342800 BEARING 4280A20004A 4280A20004A 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20231C 3531A20231C 146811 MOTOR ASSEMBLY,STEP 4681A20055A 4681A20055A 159901 VANE,HORIZONTAL 5990A20042B 5990A20042B 352150...
  • Page 337 Exploded View & Replacement Parts List Service Manual 337...
  • Page 338 Exploded View & Replacement parts List PART No. LOCATION No. DESCRIPTION REMARK LRNN096SPM0 LRNV092SPD0 131410 CHASSIS ASSEMBLY 3141A20004F 3141A20004F 135303 GRILLE,INLET 3530A10071D 3530A10071C 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069D 3531A20069D 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069E 3531A20069E 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069L 3531A20069L 135313 GRILLE ASSEMBLY,INLET 3531A20113A 3531A20113M 135316...
  • Page 339 Exploded View & Replacement parts List 249951 352380-2 352380-1 146811-1 268714 147582 135311-1 131410 263230-1 135500-3 263230-2 146811-1 147582 349490 346810-2 359012-2 346810-1 147581 135500-2 146811-1 359012-1 135311-2 135311-1 330870 135500-1 268713 267110 354210 352115 146811-2 352110 268712 135303-1 352116 352150 35211B 135303-2...
  • Page 340 Exploded View & Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION LRNV126SVM0 LRNN126SVM0 LRNV186SVM0 LRNN186SVM0 LRNN182SVM0 135303 GRILLE,INLET 3530A10116D 3530A10116D 3530A10116D 3530A10116D 3530A10116D 135303 GRILLE,INLET 3530A10117D 3530A10117D 3530A10117D 3530A10117D 3530A10117D 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20124B 3531A20124B 3531A20124B 3531A20124B 3531A20124B 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20125B 3531A20125B 3531A20125B 3531A20125B 3531A20125B 135316 GRILLE ASSEMBLY,FRONT(INDOOR)
  • Page 341 Service Manual 341...
  • Page 342 PART NO. REMARKS LOCATION No. DESCRIPTION LRNN186VBA0 LRNN246VBA0 132100 FRAME 3022AP1283B 135314 GRILLE ASSEMBLY,INLET SUB 5237AP2817B 135316 GRILLE ASSEMBLY,DIFFUSER(INDOOR) 3531A10272B 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3720AP2767P 146811 MOTOR ASSEMBLY,STEP 4681AR2727G 152302 FILTER(MECH),A/C 5230AP7093A 159901 VANE ASSY 5991AP7334C 159911 VANE ASSY,HORIZONTAL 5991AP2867B 166000 SWITCH,PUSH 6600AP2059B 166000...
  • Page 343 Exploded View & Replacement Parts List LRUV / LTUN5(5~8HP) Series (Multi V) 435311 349490 137213 559010 549610 447910-1 546810 330870 552113-1 552113-2 552112-2 552112-1 447910-2 352112-1 554030-2 558511 552112-4 554030-4 554030-1 552112-3 658740 554030-3 55211G 437211 346811 137213 Service Manual 343...
  • Page 344 Exploded View & Replacement Parts List PART NO. LOCATION NO. DESCRIPTION REMARK LRUN508T0 LRUN608T0 554160 COMPRESSOR SET 2520UNGV1AA 2520UNGV1AA 548490 ACCUMULATOR 4848A20001D 4848A20001D 553000 HEATER, SUMP 5300A20008A 5300A20008A 352111 TUBE ASSEMBLY, CONNECTOR 5211A22131A 5211A22131A 552201 VALVE, CHECK 3A01020D 3A01020D 552203 VALVE, SERVICE 5220A90012H 5220A90012H...
  • Page 345 Exploded View & Replacement Parts List Main Unit Sub Unit 44700-1 566001 W0FZZ 566001 ¡˝ ¡˝ 668711-3 668713 566001 668711-2 44700-2 649950-2 668711-1 44700-3 44700-2 659950-3 668711-4 649950-1 261704 W6200 435312 559010 Main Unit 546810-1 SUB Unit 546810-2 Service Manual 345...
  • Page 346 Exploded View & Replacement Parts List LRUV (10~14HP) Series (Multi V) 552201-2 552201-2 552201-1 561410-2 Main Unit 554160-2 552204 561410-1 552201-1 561410-3 561411 552204 565010-1 561410-6 548490-1 552204 553000-2 552200 w48602 548490-2 565010-2 552203-2 566000 552203-1 554160-1 558511 553000-1 w48602 430411 Outdoor Unit...
  • Page 347 Exploded View & Replacement Parts List LRUV100BT0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV100BT0 554160 COMPRESSOR SET 2520UNCV2BA 554160 COMPRESSOR SET 2520UNER2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B W48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 348 Exploded View & Replacement Parts List LRUV1008T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1008T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 349 Exploded View & Replacement Parts List LRUV1009T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1009T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEU1CA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 350 Exploded View & Replacement Parts List LRUV120BT0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV120BT0 554160 COMPRESSOR SET 2520UNCV2BA 554160 COMPRESSOR SET 2520UNER2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 351 LRUV120BT0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1408T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203 VALVE,SERVICE 5220A20042A 55211F TUBE ASSEMBLY,SOLENOIDE 5211A11023A 552201...
  • Page 352 Exploded View & Replacement Parts List LRUN (8~14HP) Series (Multi V) 552201-2 159910 552201-2 552201-1 561410-2 Main Unit 554160-2 552204 561410-1 552202 552201-1 561410-3 561411 552204 565010-1 561410-6 548490-1 552204 553000-2 552200 w48602 548490-2 55211F 565010-2 552203-2 566000 552203-1 554160-1 558511 553000-1 w48602...
  • Page 353 Exploded View & Replacement Parts List LRUN808T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN808T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 354 Exploded View & Replacement Parts List LRUN1008T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1008T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 355 Exploded View & Replacement Parts List LRUN1009T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1009T0 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 430411 BASE ASSEMBLY,WELD[OUTDOOR] 3041A10048A 435312 GRILLE ASSEMBLY,DISCHARGE(OUTDOOR) 3531A20211B 44700 BARRIER,OUTDOOR 4790A20052A 44700 BARRIER,OUTDOOR 4790A20052B 546810 MOTOR ASSEMBLY,OUTDOOR 4681A10029A 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 552200 VALVE,EXPANSION BODY 5220A90001B...
  • Page 356 Exploded View & Replacement Parts List LRUN100BT0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN100BT0 554160 COMPRESSOR SET 2520UNCV2CA 554160 COMPRESSOR SET 2520UNER2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 357 Exploded View & Replacement Parts List LRUN1208T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1208T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 358 Exploded View & Replacement Parts List LRUN120BT0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN120BT0 554160 COMPRESSOR SET 2520UNCV2CA 554160 COMPRESSOR SET 2520UNER2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 359 Exploded View & Replacement Parts List LRUN1408T0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1408T0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 360 Exploded View & Replacement Parts List LRUV(C) (16~40HP) Series (Multi V Plus) 552201-2 Main Unit 554160-2 159910 552201-2 552201-1 561410-2 SUB Unit 554160-1 552204 561410-1 552201-1 561410-3 561411 552204 565010-1 561410-6 548490-1 552204 553000-2 552200 w48602 548490-2 565010-2 552203-3 552203-2...
  • Page 361 Exploded View & Replacement Parts List LRUV1008TS0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1008TS0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 362 Exploded View & Replacement Parts List LRUV1008TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1008TR0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 363 Exploded View & Replacement Parts List LRUV1408TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUV1408TR0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 364 Exploded View & Replacement Parts List LRUC1008TS0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUC1008TS0 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203 VALVE,SERVICE 5220A20042A 552203 VALVE,SERVICE...
  • Page 365 Exploded View & Replacement Parts List LRUC1008TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUC1008TR0 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203 VALVE,SERVICE 5220A20042A 552203 VALVE,SERVICE...
  • Page 366 Exploded View & Replacement Parts List LRUN(H) (16~40HP) Series (Multi V Plus) 552201-2 Main Unit 554160-2 552201-2 552201-1 561410-2 SUB Unit 554160-1 552204 561410-1 561410-3 552201-1 561411 552204 565010-1 561410-6 548490-1 552204 553000-2 552200 w48602 548490-2 565010-2 552203-3 552203-2 566000...
  • Page 367 Exploded View & Replacement Parts List LRUN1008TS0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1008TS0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 368 Exploded View & Replacement Parts List LRUN1208TS0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1208TS0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 369 Exploded View & Replacement Parts List LRUN1208TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1208TR0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 370 Exploded View & Replacement Parts List LRUN1408TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUN1408TR0 554160 COMPRESSOR SET 2520UNGV1AA 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203...
  • Page 371 Exploded View & Replacement Parts List LRUH1008TS0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUH1008TS0 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203 VALVE,SERVICE 5220A20042A 552203 VALVE,SERVICE...
  • Page 372 Exploded View & Replacement Parts List LRUH1008TR0 PART NO. LOCATION NO. DESCRIPTION REMARK LRUH1008TR0 554160 COMPRESSOR SET 2520UNEY2AA 548490 ACCUMULATOR ASSEMBLY(MECH) 4849A10038A 352111 TUBE ASSEMBLY,CONNECTOR 5211A11040A 553000 HEATER,SUMP 5300A20008A 553000 HEATER,SUMP 5300A20008B w48602 CLAMP,SPRING 4H01930A 552203 VALVE,SERVICE 5220A90012A 552203 VALVE,SERVICE 5220A20042A 552203 VALVE,SERVICE...
  • Page 373 P/No.: 3828A24006A Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.

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