LG Multi V CRUN Series Service Manual
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LG Multi V CRUN Series Service Manual

LG Multi V CRUN Series Service Manual

Heat pump air conditioner
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Heat Pump Air Conditioner

SERVICE MANUAL

MODELS: CRUN/CRNN Series
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
System
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
LG

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Summary of Contents for LG Multi V CRUN Series

  • Page 1: Service Manual

    website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html System Heat Pump Air Conditioner SERVICE MANUAL MODELS: CRUN/CRNN 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 Model Name Namerclature................3 Model Names....................4 Safety Precautions ..................5 Indoor Units .....................9 Ceiling Mounted Cassette Type (1 way)..........10 Ceiling Mounted Cassette Type (4 way)..........20 Ceiling Mounted Duct Type (High static) ..........36 Ceiling Mounted Duct Type (Low static)..........48 Convertible Type ..................58 Wall Mounted Type..................77 Art Cool Type (Mirror)................93...

  • Page 3: Model Name Namerclature

    Model Name Nomenclature Indoor Unit Serial Number Combinations of functions A: Basic Function Art Cool Type Panel Color B: Blue, C: Cherry, D: Wood, M: Metal N: Walnut, R: Mirror, W: White, G: Gold Chassis Name Electrical Ratings 1: 1ø, 100V~115V, 60Hz, 2: 1ø, 220V~240V, 60Hz 6: 1ø, 220V~240V, 50Hz, 7: 1ø, 100V~115V, 50Hz Total Cooling Capacity in Btu/h unit Ex) 5,000 Btu/h...

  • Page 4: Model Names

    Model Names Indoor Unit Model Name Chassis Capacity, kW(Btu/h) Category Type Name 10.6 12.3 14.1 (7,000) (9,000) (12,000) (18,000) (24,000) (28,000) (36,000) (42,000) (48,000) CRNN CRNN CRNN Wall 076SRA0 096SRA0 126SRA0 Mounted General CRNN Type 186STA0 CRNN CRNN CRNN Mirror 076SU*0 096SU*0 126SU*0...

  • Page 5: Safety Precautions

    Safety Precautions Safety Precautions To prevent indury 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 6 Safety Precautions Cautions before installation Use the specified cables for wiring. Make the Always use accessories specified by LG connections securely so that the outside force Electronics. of the cable is not applied to the terminals. - Inadequate connection and fastening may gen- - Ask an authorized technician to install the erate heat and cause a fire.
  • Page 7 LG Electronics are used, fire or explosion may result. Do not install the unit where combustible gas Do not use the air conditioner where food, may leak.
  • Page 8 Safety Precautions Do not wash the air conditioner units. Be careful that the installation base is not damaged by long use. - Washing them may cause an electric shock. - If the damage is left uncorrected, the unit may fall and cause personal injury or property damage.

  • Page 9: Indoor Units

    Indoor Units Service Manual 9...

  • Page 10: Ceiling Mounted Cassette Type (1Way)

    CRNN-TC Ceiling Mounted Cassette Type (1Way) 1. Specifications ................11 2. Functions ..................12 3. Operation Details................13 4. Dimensional Drawings ...............15 5. Piping Diagrams .................16 6. Wiring Diagrams .................17 7. Exploded View ................18 8. Replacement Parts List..............19 Indoor Unit...

  • Page 11: Specifications

    Specifications 1. Specifications Model Unit CRNN076TCA0 CRNN096TCA0 CRNN126TCA0 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 Btu/h 7,165 8,871 11,942 2,363 2,925 3,938 2,031 2,515 3,385 Heating Capacity kcal/h Btu/h 8,061 9,980 13,435 Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 860*390*180 860*390*180...

  • Page 12: Functions

    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 13: 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 14: 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 15: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings Ceiling Ceiling Board Ceiling Board 50 or 50 or more more Unit:cm Floor Ø80 Ø55 931.6 893.4 16.7 42.7 91.6 97.7 116.3 141.8 (Unit: mm) 1050 694.5 Service Manual 15...

  • Page 16: 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 CRNN076TCA0 CRNN096TCA0 12.7(1/2) 6.35(1/4) CRNN126TCA0 Indoor Unit...

  • Page 17: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams 1(L) 2(N) (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 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...

  • Page 18: Exploded View

    Exploded View 7. Exploded View Indoor Unit...

  • Page 19: Replacement Parts List

    Replacement Parts List 8. Replacement Parts List PART No. REMARK LOCATION No. DESCRIPTION CRNN076TCA0 CRNN096TCA0 CRNN126TCA0 130911 CABINET ASSEMBLY,INDOOR 3091A10024A 146811 MOTOR ASSEMBLY,STEP 4681AR2727G 152312 FILTER ASSEMBLY,AIR CLEANER 5231A10003A 158580 PUMP ASSEMBLY,WATER 5859A10001A 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3721A10023Y 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10024Q 4995A10024R 4995A10024X...

  • Page 20: Ceiling Mounted Cassette Type (4Way)

    CRNN-TE / CRNN-TD Ceiling Mounted Cassette Type (4Way) 1. Specifications ................21 2. Functions ..................23 3. Operation Details................24 4. Dimensional Drawings ...............26 5. Piping Diagrams .................28 6. Wiring Diagrams .................29 7. Exploded View ................30 8. Replacement Parts List..............34 Indoor Unit...

  • Page 21: Specifications

    Specifications 1. Specifications Model Unit CRNN126TEA0 CRNN186TEA0 CRNN246TDA0 3,500 5,300 7,000 Cooling Capacity kcal/h 3,009 4,557 6,019 Btu/h 11,942 18,084 23,885 3,938 5,963 7,875 Heating Capacity kcal/h 3,385 5,127 6,771 Btu/h 13,435 20,345 26,870 Casing Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 570*570*269 570*570*269...

  • Page 22: Indoor Unit

    Specifications Model Unit CRNN286TDA0 CRNN366TDA0 CRNN426TDA0 CRNN486TDA0 8,200 10,600 12,300 14,100 Cooling Capacity kcal/h 7,052 9,116 10,578 12,126 Btu/h 27,995 36,168 41,992 48,137 9,225 11,925 13,838 15,863 7,934 10,253 11,040 13,156 Heating Capacity kcal/h 31,494 40,689 43,829 54,156 Btu/h Casing Galvanized Steel Plate 840*840*288 840*840*288...

  • Page 23: Functions

    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 24: 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 25 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 26: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings CRNN126TEA0, CRNN186TEA0, Ceiling Ceiling Board Ceiling Board 50 or 50 or more more Unit:cm Floor CLOSE OPEN OPEN CLOSE (unit:mm) Indoor Unit...
  • Page 27 Dimensional Drawings CRNN246TDA0, CRNN286TDA0, CRNN366TDA0 CRNN426TDA0, CRNN486TDA0 Ceiling Ceiling Board Ceiling Board 50 or 50 or more more Unit:cm Floor (unit:mm) Service Manual 27...

  • Page 28: Piping Diagrams

    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 CRNN126TEA0 12.7(1/2) 6.35(1/4) CRNN186TEA0 15.88(5/8) 9.52(3/8) CRNN246TDA0 15.88(5/8) 9.52(3/8) CRNN286TDA0 15.88(5/8) 9.52(3/8) CRNN366TDA0 19.05(3/4) 9.52(3/8) CRNN426TDA0 19.05(3/4)

  • Page 29: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams 1(L) 2(N) (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 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...

  • Page 30: Exploded View

    Explodede View 7. Exploded View CRNN126TEA0, CRNN186TEA0 249951 268714 263230-1 354211 352115 352118 263230-2 263230-3 158591 266012 330870 Indoor Unit...
  • Page 31 Explodede View 130411 W0CZZ 346810 359011 146811 268712 140570 152312 130911-2 135802 137211 352150-1 130911-1 267110 352150-2 Service Manual 31...
  • Page 32 Explodede View CRNN246TDA0, CRNN286TDA0, CRNN366TDA0, CRNN426TDA0, CRNN486TDA0 249951 249951 268714 263230-3 354211-1 130411 354211-2 352114 55211G 263230-1 263230-2 352118 330870 158591 266012 Indoor Unit...
  • Page 33 Explodede View 130411 W0CZZ 146811 268712 346810 152312 359012 130913-2 140570 130911-2 135314 135802 137211 130911-1 352150 130913-1 267110 152510 Service Manual 33...

  • Page 34: Replacement Parts List

    Replacement Parts List 8. Replacement Parts List PART NO. LOCATION DESCRIPTION REMARK CRNN126TEA0 CRNN186TEA0 130411 BASE ASSY,WELD[INDOOR] 3041A10013A 130911-1 CABINET ASSEMBLY,INDOOR 3091A10023C 130911-2 CABINET ASSEMBLY,INDOOR 3091A10023D 135802 DOOR 3580A20005A 137211 PANEL ASSY,FRONT(INDOOR) 3721A10021A 140570 LOCKER 4056A20001A 146811 MOTOR ASSY,STEP 4681AP2968D 152312 FILTER ASSY,AIR CLEANER 5231A10005A...
  • Page 35 Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION CRNN246TDA0 CRNN286TDA0 CRNN366TDA0 CRNN426TDA0 CRNN486TDA0 354211-1 EVAPORATOR ASSY 5421A10016A 354211-2 EVAPORATOR ASSY 5421A10016B 352118 TUBE ASSEMBLY, MENIFOLD (INDOOR) 5211A20251B TUBE ASSEMBLY, MENIFOLD (INDOOR) 5211A20251H 5211A20251G 352114 TUBE ASSEMBLY, DISTRIBUTOR 5211A10299A 55211G TUBE ASSEMBLY, EXPANSION 5211A10298A 158591 PUMP ASSEMBLY, WATER...

  • Page 36: Ceiling Mounted Duct Type (High Static)

    CRNN-BH / CRNN-BG / CRNN-BE Ceiling Concealed Duct Type (High static) 1. Specifications ................37 2. Functions ..................39 3. Operation Details................40 4. Dimensional Drawings ...............42 5. Piping Diagrams .................43 6. Wiring Diagrams .................44 7. Exploded View ................45 8. Replacement Parts List..............47 Indoor Unit...

  • Page 37: Specifications

    Specifications 1. Specifi cations Model Unit CRNN186BHA0 CRNN246BHA0 CRNN286BGA0 5,300 7,000 8,200 4,557 6,019 7,052 Cooling Capacity kcal/h 18,084 23,885 27,995 Btu/h 5,963 7,875 9.255 Heating Capacity kcal/h 5,127 6,771 7,933 20,345 26,870 31,494 Btu/h Casing Galvanized Steel Plate 880*260*450 880*260*450 1,180*298*450 Dimensions (W*H*D)
  • Page 38 Specifications Model Unit CRNN366BGA0 CRNN426BGA0 CRNN486BEA0 10,600 12,300 14,100 9,116 10,578 12,126 Cooling Capacity kcal/h 36,188 41,992 48,137 Btu/h 11,925 13,837 15,885 Heating Capacity kcal/h 10,255 11,900 13,661 40,712 47,410 54,231 Btu/h Casing Galvanized Steel Plate 1,180*298*450 1,230*370*680 1,230*370*680 Dimensions (W*H*D) 46.4*11.7*17.7 48.4*14.6*26.8 48.4*14.6*26.8...

  • Page 39: Functions

    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 40: Operation Details

    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 41 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 42: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings (Unit: mm) Model 186/246BH 932 882 355 45.5 450 163 260 61.5 243 212.3 243 110 130 30 158.5 286/366/426BG 1232 1182 355 45.5 450 186 298 229.5 243 232 243 116 160 19 158.5 486BE 1292 1230 570.5 54...

  • Page 43: Piping Diagrams

    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 CRNN186BHA0 15.88(5/8) 9.52(3/8) CRNN246BHA0 CRNN286BGA0 CRNN366BGA0 19.05(3/4) 9.52(3/8) CRNN426BGA0 19.05(3/4) 9.52(3/8) CRNN486BEA0 Service Manual 43...

  • Page 44: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams 1(L) 2(N) (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 CN-MOTOR2 AC FAN MOTOR OUTPUT YELLOW MOTOR OUTPUT OF PHASE CONTROL CN-D/PUMP CN-D/PUMP DRAIN PUMP OUTPUT WHITE AC OUTPUT FOR DRAIN PUMP...

  • Page 45: Exploded View

    Exploded View 7. Exploded View • CRNN186BHA0 • CRNN246BHA0 • CRNN286BGA0 • CRNN366BGA0 346810 • CRNN426BGA0 359012 336610-1 336610-2 W0CZZ 263230-3 263230-2 267110 354210 263230-1 268714 249951 152302 352118 55211G 330870 158591 Service Manual 45...
  • Page 46 Exploded View • CRNN486BEA0 Indoor Unit...

  • Page 47: Replacement Parts List

    Replacement Parts List 8. Replacement Parts List Part No. LOCATION REMARKS DESCRIPTION CRNN186BHA0 CRNN246BHA0 152302 FILTER(MECH),A/C 5230A30001M 5230A30001M 152302 FILTER(MECH), A/C 5230A30001M 158591 PUMP ASSEMBLY, WATER 5859A20002A 249951 CONTROL BOX ASSEMBLY, INDOOR 4995A20164M 4995A20164L 263230-1 THERMISTOR ASSEMBLY(ROOM) 6323AQ3214E 263230-2 THERMISTOR ASSEMBLY(PIPE-IN) 6323AQ3226G 263230-3 THERMISTOR ASSEMBLY(PIPE-OUT)

  • Page 48: Ceiling Mounted Duct Type (Low Static)

    CRNN-BN / CRNN-BJ Ceiling Concealed Duct Type (Low static) 1. Specifications ................49 2. Functions ..................50 3. Operation Details................51 4. Dimensional Drawings ...............53 5. Piping Diagrams .................54 6. Wiring Diagrams .................55 7. Exploded View ................56 8. Replacement Parts List..............57 Indoor Unit...

  • Page 49: Specifications

    Specifications 1. Specifications CRNN076BNG0 CRNN096BJG0 CRNN126BJG0 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 3,923 2,031 2,515 3,385 Heating Capacity kcal/h 8,061 9,980 13,435 Btu/h Galvanized Steel Plate Casing 783*220*520 873*220*520 873*220*520 Dimensions (W*H*D) 30.8*8.7*20.5...

  • Page 50: Functions

    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 51: Operation Details

    Functions 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 52 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 53: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings Model CRNN076BNG0 CRNN096BJG0 CRNN126BJG0 Front view Top view Inspection hole (unit: mm) (600X600) Control box Front Service Manual 53...

  • Page 54: Piping Diagrams

    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 CRNN076BNG0 CRNN096BJG0 Ø12.7(1/2) Ø6.35(1/4) CRNN126BJG0 Indoor Unit...

  • Page 55: Wiring Diagrams

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

  • Page 56: Exploded View

    Exploded View 7. Exploded View 137214 137213-1 152302 249951 268714 354210 137213-2 263230-1 263230-2 263230-3 346810 135500-2 158591 336610 437214 147901 359012 135500-1 330870 267110 Indoor Unit...

  • Page 57: Replacement Parts List

    Replacement Parts List 8. Replacement Parts List PART NO. REMARKS LOCATION No. DESCRIPTION CRNN076BNG0 CRNN096BJG0 CRNN126BJG0 135500-1 COVER 3550A20214A 3550A20214B 3550A20214B 135500-2 COVER 3550A20215A 3550A20215A 3550A20215A 137213-1 PANEL ASSEMBLY,SIDE 3721A20136A 3721A20136A 3721A20136A 137213-2 PANEL ASSEMBLY,SIDE 3721A20136B 3721A20136B 3721A20136B 137214 PANEL ASSEMBLY,UPPER 3721A20135A 3721A20135B 3721A20135B...

  • Page 58: Convertible Type

    CRNN-VB Convertible Type 1. Specification ................59 2. Installstion...................60 3. Operation Details................61 4. Display Function ................67 5. Dimensional Drawings ...............68 6. Piping Diagrams .................69 7. Wiring Diagrams .................70 8. Disassembly of the parts ..............71 9. Exploded View ..................75 10. Replacement Parts List............76 Indoor Unit...

  • Page 59: Specification

    Specifications 1. Specifications Model Unit CRNN186VBA0 CRNN246VBA0 5,300 7,032 Cooling Capacity kcal/h 4,557 6,048 Btu/h 18,084 24,600 5,963 7,735 Heating Capacity kcal/h 5,127 6,653 Btu/h 20,345 26,400 Color White 1200*615*205 Dimensions (W*H*D) inch 47.24*24.21*8.07 Casing Galvanized Steel plate + Painting Coil Rows x Columns x FPI 2*12*18...

  • Page 60: Installstion

    Installstion 2. Installstion 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 61: Operation Details

    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 62 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 63 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 64 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 65: 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 66: 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 67: 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 68: Dimensional Drawings

    Dimensional Drawings 5. Dimensional Drawings 1 2 0 0 (Rear Side) (Unit: mm) More than 20cm More than 20cm More than More than 20cm 20cm More than eye-level (Ceiling installation) (Floor/Wall installation) Indoor Unit...

  • Page 69: Piping Diagrams

    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 CRNN186VBA0 15.88(5/8) 9.52(3/8) CRNN246VBA0 Service Manual 69...

  • Page 70: Wiring Diagrams

    Wiring Diagrams 7. Wiring Diagrams 1(L) 2(N) (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 CN-MOTOR2 AC FAN MOTOR OUTPUT YELLOW MOTOR OUTPUT OF PHASE CONTROL CN-COMM CN-COMM COMMUNICATION WHITE COMMUNICATION BETWEEN INDOOR AND OUTDOOR...

  • Page 71: 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 72 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 73 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 74 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 75: Exploded View

    Exploded View 9. Exploded View Service Manual 75...

  • Page 76: Replacement Parts List

    Replacement Parts List 10. Replacement Parts List PART NO. REMARKS LOCATION No. DESCRIPTION CRNN186VBA0 CRNN246VBA0 130911 CABINET ASSEMBLY,INDOOR 3091AP2533A 132100 FRAME 3022AP1283B 135303 GRILLE,INLET 5236AP1236A 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...

  • Page 77: Wall Mounted Type

    CRNN-SR / CRNN-ST Wall Mounted Type 1. Specification ................78 2. Functions ..................79 3. Operation Details................80 4. Dimensional Drawings ...............85 5. Piping Diagrams .................86 6. Wiring Diagrams .................87 7. Disassembly of the parts..............88 8. Exploded View ................90 9. Replacement Parts List..............92 Service Manual 77...

  • Page 78: Specification

    Specifications 1. Specifications Model Unit CRNN076SRA0 CRNN096SRA0 CRNN126SRA0 CRNN186STA0 2,100 2,600 3,500 5,300 1,806 2,235 3,009 4,557 Cooling Capacity kcal/h 7,165 8,871 11,942 18,084 Btu/h 2,363 2,925 3,938 5,963 Heating Capacity kcal/h 2,031 2,515 3,385 5,127 Btu/h 8,061 9,980 13,435 20,345 900*285*156 900*285*156...

  • Page 79: Functions

    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 80: Operation Details

    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 81 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 82 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 83 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 84 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 85: Dimensional Drawings

    Dimiensional Drawings 4. Dimiensional Drawings Installation plate (Unit : mm) Model No. CRNN076SRA0 CRNN096SRA0 CRNN126SRA0 CRNN186STA0 1090 Service Manual 85...

  • Page 86: Piping Diagrams

    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 CRNN076SRA0 CRNN096SRA0 12.7(1/2) 6.35(1/4) CRNN126SRA0 CRNN186STA0 15.88(5/8) 9.52(3/8) Indoor Unit...

  • Page 87: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 CN-MOTOR2 AC FAN MOTOR OUTPUT YELLOW MOTOR OUTPUT OF PHASE CONTROL CN-ACDC AC/DC CONNECTION WHITE CONNECTION BETWEEN AC PCB AND DC PCB CN-COMM CN-COMM...

  • Page 88: Disassembly Of The Parts

    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 89 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 90: Exploded View

    Exploded View 8. Exploded View • CRNN076SRA0, CRNN096SRA0, CRNN126SRA0 Indoor Unit...
  • Page 91 Exploded View • CRNN186STA0 Service Manual 91...

  • Page 92: Replacement Parts List

    Replacement Parts List 9. Replacement Parts List Part No. Location Description Remarks CRNN076SRA0 CRNN096SRA0 CRNN126SRA0 131410 CHASSIS ASSEMBLY 3141A20005E 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10192E 135312 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10118W 135516 COVER ASSEMBLY,MOTOR 3551A20050A 146811 MOTOR ASSEMBLY,STEP 4681A20055A 152302 FILTER(MECH),A/C 5230A20014A 159901 VANE,HORIZONTAL 5990A20007A 249951 CONTROL BOX ASSEMBLY,INDOOR...

  • Page 93: Art Cool Type(Mirror)

    CRNN-SU Art Cool Type(Mirror) 1. Specification ................94 2. Functions ..................95 3. Operation Details................96 4. Display Function...............102 5. Dimensional Drawings .............103 6. Piping Diagrams ...............104 7. Wiring Diagrams ...............105 8. Disassembly of the parts...............106 9. Exploded View ................109 10. Replacement Parts List............110 Service Manual 93...

  • Page 94: Specification

    Specifications 1. Specifications Model Unit CRNN076SU*0 CRNN096SU*0 CRNN126SU*0 2,100 2,600 3,500 Cooling Capacity kcal/h 1,806 2,235 3,009 Btu/h 7,165 8,871 11,942 2,363 2,925 3,938 Heating Capacity kcal/h 2,031 2,515 3,385 Btu/h 8,061 9,980 13,435 1,030*290*153 1,030*290*153 1,030*290*153 Dimensions (W*H*D) inch 40.6*11.4*6.1 40.6*11.4*6.1 40.6*11.4*6.1...

  • Page 95: Functions

    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 96: Operation Details

    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 97 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 98 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 99 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 100: 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 101 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 102: Display Function

    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 103: Dimensional Drawings

    Dimensional Drawings 5. Dimensional Drawings CRNN076SU*0 CRNN096SU*0 CRNN126SU*0 (unit: mm) Installation plate Model No. CRNN076SU*0 CRNN096SU*0 1030 CRNN126SU*0 Service Manual 103...

  • Page 104: Piping Diagrams

    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 CRNN076SU*0 CRNN096SU*0 12.7(1/2) 6.35(1/4) CRNN126SU*0 Indoor Unit...

  • Page 105: Wiring Diagrams

    Wiring Diagrams 7. Wiring Diagrams MAIN PCB ASM THERMISTOR THERMISTOR MOTOR STEP MOTOR STEP MOTOR STEP FUSE MOTOR AC250V/T2A CN-HVB CN-VFD 1(L) 2(N) DISPLAY PURIFIER PCB ASM POWER INPUT TO OUTDOOR UNIT(Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2...

  • Page 106: 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”. To remove the Grille from the Chassis. • Hold up Inlet Grille Horizentally. •...
  • Page 107 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 108 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 109: Exploded View

    Exploded View 9. Exploded View 135312 146811-2 152302 668713 146811-2 145200 668713 263020 237900 135080 733010 267110 359011 342800 354210 131410 346810 352150 249951 352115 352116 35211B 263230-2 146811-1 159901 135311 Service Manual 109...

  • Page 110: Replacement Parts List

    Replacement Parts List 10. Replacement Parts List PART No. LOCATION DESCRIPTION REMARKS CRNN076SU*0 CRNN096SU*O CRNN126SU*0 131410 CHASSIS ASSEMBLY 3141A20007B 135080 DECORATION(TOP) 3508A20034A 135080 DECORATION(BOTTOM) 3508A20034B 135311 GRILLE ASSEMBLY,DISCHARGE 3531A10137B 135314 GRILLE ASSEMBLY,INLET MIRROR BLUE GOLD 135312 GRILLE ASSEMBLY,FRONT MIRROR BLUE GOLD 145200 LINK...

  • Page 111: Art Cool Type

    CRNN-SP Art Cool Type 1. Specification ................112 2. Functions ..................113 3. Operation Details..............114 4. Display Function ................119 5. Dimensional Drawings .............120 6. Piping Diagrams ...............121 7. Wiring Diagrams ...............122 8. Disassembly of the parts ............123 9. Exploded View ................125 10. Replacement Parts List............126 Service Manual 111...

  • Page 112: Specification

    Specifications 1. Specifications CRNN096SP*0 CRNN126SP*0 Model Unit 2,600 3,500 2,235 3,009 Cooling Capacity kcal/h Btu/h 8,871 11,942 2,925 3,938 2,515 3,385 Heating Capacity kcal/h 9,980 13,435 Btu/h 570*570*137 570*570*137 Dimensions (W*H*D) 22.4*22.4*5.4 22.4*22.4*5.4 inch 2*20*20 2*20*20 Coil Rows x Columns x FPI 0.17 0.17 Face Area...

  • Page 113: Functions

    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 114: Operation Details

    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 115 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 116 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 117: 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 118 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 119: Display Function

    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 119...

  • Page 120: Dimensional Drawings

    Dimensional Drawings 5. Dimensional Drawings Hanger Hole Fix Hole Pipe Hole (unit: mm) Model CRNN096SP*0 CRNN126SP*0 Indoor Unit...

  • Page 121: Piping Diagrams

    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 CRNN096SP*0 12.7(1/2) 6.35(1/4) CRNN126SP*0 Service Manual 121...

  • Page 122: Wiring Diagrams

    Wiring Diagrams 7. Wiring Diagrams TO OUTDOOR UNIT (TRANSMISSION) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 CN-MOTOR2 BLDC FAN MOTOR OUTPUT WHITE MOTOR OUTPUT OF BLDC CN-COM CN-COM COMMUNICATION WHITE COMMUNICATION BETWEEN INDOOR AND OUTDOOR...

  • Page 123: 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. 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 124 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 125: Exploded View

    Exploded View 9. Exploded View Service Manual 125...

  • Page 126: Replacement Parts List

    Replacement Parts List 10. Replacement Parts List PART No. LOCATION DESCRIPTION REMARKS CRNN096SP*0 CRNN126SP*0 131410 CHASSIS ASSEMBLY 3141A20004F 135303 GRILLE,INLET BLEU 3530A10071B WOOD 3530A10071C METAL 3530A10071D 135311-1 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069E 135311-2 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069D 135311-3 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A20069L 135314 GRILLE ASSEMBLY,INLET BLEU 3531A20113B WOOD...

  • Page 127: Art Cool Type(Wide)

    CRNN-SV Art Cool Type(Wide) 1. Specification ................128 2. Installation.................129 3. Operation Details..............130 4. Display Function ................136 5. Dimensional Drawings .............137 6. Piping Diagrams ...............138 7. Wiring Diagrams ...............139 8. Disassembly of the parts ............140 9. Exploded View ................142 10. Replacement Parts List............143 Service Manual 127...

  • Page 128: Specification

    Specifications 1. Specifications Model Unit CRNN126SV*0 CRNN186SV*0 3,500 5,300 Cooling Capacity kcal/h 3,009 4,557 Btu/h 11,942 18,084 3,938 5,963 Heating Capacity kcal/h 3,385 5,127 Btu/h 13,435 20,345 928*522*147 928*522*147 Dimensions (W*H*D) inch 36.5*20.6*5.8 36.5*20.6*5.8 Coil Rows x Columns x FPI Face Area Moisture removal l/h.

  • Page 129: Installation

    Installation 2. Installation 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 130: Operation Details

    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 131 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 132 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 133 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 134 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 135 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 136: Display Function

    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 Indoor Unit...

  • Page 137: Dimensional Drawings

    Dimensional Drawings 5. Dimensional Drawings CRNN126SV*0 CRNN186SV*0 Pipe Hole Pipe Hole 60mm 60mm (Unit: mm) Model CRNN126SV*0 CRNN186SV*0 Service Manual 137...

  • Page 138: Piping Diagrams

    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 CRNN126SV*0 9.52(3/8) 15.88(5/8) CRNN186SV*0 Indoor Unit...

  • Page 139: Wiring Diagrams

    Wiring Diagrams 7. Wiring Diagrams 1(L) 2(N) (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR2 CN-MOTOR2 BLDC FAN MOTOR OUTPUT WHITE MOTOR OUTPUT OF BLDC CN-COM CN-COM COMMUNICATION WHITE COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN-LEV...

  • Page 140: 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. To remove the Grille from the Chassis. - Push mark[ ] on the grille bottom then pull it down and remove 3 securing screws.
  • Page 141 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 142: Exploded View

    Exploded View 9. Exploded View 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 668713 267110 354210 352115 146811-2 352110 268712 135303-1 352116 352150 35211B 135303-2 135316...

  • Page 143: Replacement Parts List

    Replacement Parts List 10. Replacement parts List LOCATION PART No DESCRIPTION REMARKS CRNN126SV*0 CRNN186SV*0 131410 CHASSIS ASSEMBLY 3141A20008A 135311-1 GRILLE ASSEMBLY, DISCHARGE(INDOOR) 3531A20124B 135311-2 GRILLE ASSEMBLY, DISCHARGE(INDOOR) 3531A20125B 135316 GRILLE ASSEMBLY, FRONT(INDOOR) BLUE 3531A10289A WOOD 3531A10153V METAL 3531A10153Z 135303-1 GRILLE, INLET BLUE 3530A10116B WOOD...

  • Page 144: Flor Standing Type

    CRNN-CAA/CBA/CCA/CDA(With Case) Floor Standing Type 1. Specification ................145 2. Functions ..................146 3. Operation Details..............147 4. Dimensional Drawings .............149 5. Piping Diagrams ...............150 6. Wiring Diagrams ...............151 7. Exploded View ................152 8. Replacement Parts List............153 Indoor Unit...

  • Page 145: Specification

    Specifications 1. Specifications CRNN076CAA0 CRNN096CBA0 CRNN126CBA0 CRNN186CCA0 CRNN246CDA0 Model Unit 2,100 2,600 3,500 5,300 7,000 Cooling Capacity kcal/h 1,806 2,235 3,009 4,557 6,019 Btu/h 7,165 8,871 11,942 18,084 23,885 2,363 2,925 3,938 5,963 7,075 Heating Capacity kcal/h 2,031 2,515 3,385 5,127 6,771 8,061...

  • Page 146: Functions

    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 147: Operation Details

    Operation Dtails 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 148 Operation Dtails 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 149: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings CRNN076CAA0 CRNN096CBA0 CRNN126CBA0 CRNN186CCA0 CRNN246CDA0 Model 1,050 CRNN076CAA0 1,170 CRNN096CBA0 1,170 CRNN126CBA0 1,410 CRNN186CCA0 CRNN246CDA0 1,530 1,080 Air Outlet Wired LCD Remote Control Air Filter Air Inlet Service Manual 149...

  • Page 150: Piping Diagrams

    Piping Diagrams 5. Piping diagrams :Cooling Heat Exchanger :Heating Filter Sirroco Fan Filter lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid 12.7(1/2) 6.35(1/4) CRNN076CAA0 12.7(1/2) 6.35(1/4) CRNN096CBA0 12.7(1/2) 6.35(1/4) CRNN126CBA0 15.88(5/8) 9.52(3/8) CRNN186CCA0 CRNN246CDA0 15.88(5/8) 9.52(3/8) Indoor Unit...

  • Page 151: Wiring Diagrams

    Wiring Diagrams 6. Wiring Diagrams (Transmission) CONNECTOR SPEC COLOR DESCRIPTION NUMBER CN-POWER AC POWER SUPPLY WHITE AC POWER LINE INPUT FOR INDOOR CONTROLLER CN-MOTOR 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 152: Exploded View

    Exploded view 8. Exploded View 263230-1 263230-2 263230-3 346810 249951 268714 2671100 Indoor Unit...

  • Page 153: Replacement Parts List

    Replacement Parts List 9. Replacement Parts List PART NO. LOCATION REMARK DESCRIPTION CRNN076CCA0 CRNN096CBA0 CRNN126CBA0 CRNN186CCA0 CRNN246CDA0 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20297H 4995A20297J 4995A20297K 4995A20297L 4995A20297M 263230-1 THERMISTOR ASSEMBLY(ROOM) 6323A30004E 263230-2 THERMISTOR ASSEMBLY(PIPE-IN) 6323A30002A 263230-3 THERMISTOR ASSEMBLY(PIPE-OUT) 6323AQ3226T 267110 REMOTE CONTROLLER ASSEMBLY 6711A10002D 268714 PWB(PCB) ASSEMBLY,MAIN...

  • Page 154: Outdoor Units

    Outdoor unit Outdoor Unit...
  • Page 155 CRUN Series 1. Specifications ................156 2. Function ..................157 3. Operation Details..............158 4. Dimensional Drawings .............169 5. Refrigerant Cycle Diagrams ............171 6. Wiring Diagrams ...............173 7. Exploded View ................176 8. Replacement Parts List............179 Service Manual 155...

  • Page 156: Specifications

    Specifications 1. Specifications Model Unit CRUN458S0 CRUN1008T0 13.0 28.0 Cooling Capacity kcal/h 11,178 24,080 Btu/h 44,358 96,000 14.5 31.5 Heating Capacity kcal/h 12,554 27,090 Btu/h 49,500 108,000 Casing Color WARM GRAY WARM GRAY Dimensions 900*1,225*370 1,246*1,519*700 (W*H*D) inch 35.43*48.42*13.57 49.07*58.84*27.56 Cooling Btu/hW 8.24...

  • Page 157: Function

    Function 2. Function Scroll compressor that operates on 30~120Hz by inverter drive enables Inverter Compressor capacity control. The oil separator is a device that collects the discharged oil from the Oil separator Compressor. The collected oil is constantly recycled to the compressor via capillary tube.

  • Page 158: Operation Details

    Operation detail 3. Operation detail 3.1 CRUN458S0 Compressor Control (1) Compressor operation method - In order to stop the compressor, decrease the frequency to 30Hz, and turn off. - Rising speed of frequency : 1Hz/2seconds Decreasing speed of frequency: 1Hz/1second. (2) Compressor Operation Step - Maximum frequency for ICOFis limitted by the temperature of outdoor air.
  • Page 159 Operation detail Linear Expansion Valve(LEV) Control (1) Control type LEV for Indoor Unit for Outdoor Unit On state Off state Thermo off state Indoor unit Indoor unit indoor unit At starting Feed back Feed back control control At starting Feed back Freed back Feed back control...
  • Page 160 Operation detail Control of Outdoor Unit Fan (1) Outdoor unit fan is controlled by motor which can be rotated high/low speed (2) Steps of outdoor unit fan speed : 4 Steps Step_Fan Left Right High High High (3) Determination of fan speed(Step_Fan) Step_Fan Step_Fan ∑Qj...

  • Page 161: Oil Return Operation

    Operation detail Oil Return Operation (1) Conditions for oil return operation 1. Compressor on time (normal operation not full capacity operation) is 6 hours or more. 2. During operation, deicing operation is started or the load is changed to full capacity operation, the cumulative time is reset (2) Process of oil return operation 1.
  • Page 162 Operation detail (3) Control the discharge temperature 1. At the temperature of compressor discharge pipe >100°C, turn on the liquid injection valve. Inverter compressor, Comp.: off 115°C Frequency: 10Hz down 110°C ICOF: keep up the frequency 100°C 95°C Comp.: normal operation ICOF: Inverter Compressor Operation Frequency (4) DC peak control 1.
  • Page 163 Operation detail 3.2 CRUN1008T0 Compressor Control (1) Compressor operation method - Capacity control operation with the combination of Inverter compressor and constant speed compressor - It is not allowed to operate constant speed compressor only. - In over capacity range, rising of frequency is restrained because of the heat exchanger capacity limit. Inverter comp.: 120Hz...
  • Page 164 Operation detail (4) starting Method - Total 7 minutes consumed for starting operation - After 7 minutes, the compressor operates at target frequency step • Stage A = Step 6(40Hz + Off) • Stage B = determined by pressure Consumed time 1 min 2 min 1 min...
  • Page 165 Operation detail Linear Expansion Valve(LEV) Control (1) Control type LEV for Indoor Unit for Outdoor Unit On state Off state Thermo off state Indoor unit Indoor unit indoor unit At starting Fully open Base Pulse Fully Closed Fully Closed Feed back Feed back Fully open Fully Closed...

  • Page 166: Hot Gas Bypass Valve

    Operation detail Control of Reversing Valve 1. Initial state: keep up OFF state 2. Cooling and Deicing operation: OFF Heating operation : ON 3. Change operation mode(Cooling Heating): 3minutes restarting, reversing valve ON. 4. Compressor stop because of Thermo-OFF: keep up the present state. Hot Gas Bypass Valve (1) General control 1.
  • Page 167 Operation detail (2) Control to prevent low pressure 1. If the measured pressure(transformed absolute pressure)from low-pressure sensor satisfies the condi- tion, take 1 minute periodic control like following graph. Cooling operation Heating operation Comp.: normal step Comp.: normal step Outdoor fan: normal Outdoor fan: normal Bypass valve: normal Bypass valve: normal...
  • Page 168 Operation detail (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 169: Dimensional Drawings

    Dimensional Drawings 4. Dimensional Drawings CRUN158S0 Liquid side 3-way valve Gas side 3-way valve Model CRUN458S0 Dimension 1225 1135 Service Manual 169...
  • Page 170 Dimensional Drawings CRUN1008T0 Model No. CRUN1008T0 Dimension 1,246 1,519 1,237 Outdoor Unit...

  • Page 171: Refrigerant Cycle Diagrams

    Refrigerant Cycle Diagram 5. Refrigerant Cycle Diagram CRUN458S0 Service Manual 171...
  • Page 172 Refrigerant Cycle Diagram CRUN1008T0 Outdoor Unit...

  • Page 173: Wiring Diagrams

    Wiring Diagrams 6. Wiring diagrams CRUN458S0 Connector Connector SPEC Color Description SPEC Color Description Number Number POWER AC POWER SUPPLY CN13 DC-LINK DC LINK VOLTAGE DETECT FAN(L) FAN MOTOR LOW SIDE CN14 IPM CONTROL SIGNAL FAN(H) FAN MOTOR HIGH SIDE CN15 P-SEN(L) LOW PRESSURE SENSOR...
  • Page 174 Wiring Diagrams CRUN1008T0 Outdoor Unit...

  • Page 175: Control Board

    Wiring Diagrams Control board Connector Connector SPEC Color Description SPEC Color Description Number Number POWER 1(AC) AC POWER 1 CN16 LEV(B) LINEAR EXPANSION VALVE(B) CN17 MAGNETIC MAGNETIC SWITCH NOT USE TO-INDOOR TRANSMISSION WITH INDOOR CN18 FAN(L) FAN MOTOR (LEFT) JIG1, 2 JIG POWER CN19 FAN(R)

  • Page 176: Exploded View

    Exploded View 7. Exploded View CRUN458S0 Outdoor Unit...
  • Page 177 Exploded View CRUN1008T0 554031-3 W49800-4 435312-2 435312-1 435312-2 349940 554031-2 W49800-3 435512 554031-4 435312-1 137214 554031-1 559010 546810-1 W49800-2 546810-2 W4810-2 W4810-1 549610 437211 W49800-1 W4810-3 Service Manual 177...
  • Page 178 Exploded View CRUN1008T0 561140-3 561140-2 649950 566001 561140-1 W0CZZ 55211F-1 55211F-2 W0FS 352111-2 552117-2 352111-3 552117-1 668711-1 561410 668711-2 552116 435511 554160-1 165010-1 558490-2 165010-2 548490-3 554160-2 552115-2 55211G-2 165010-1 553000-1 165010-2 552203-2 W48602 561411-1 552203-1 55211G-1 W49800-5 561411-2 553000-2 W48602 548490-1 558490-4...

  • Page 179: Replacement Parts List

    Replacement parts list 8. Replacement parts list CRUN458S0 PART NO. LOCATION NO. DESCRIPTION REMARK CRUN458S0 548490-1 ACCUMULATOR ASSEMBLY(MECH) 4849A10014A 548490-2 ACCUMULATOR ASSEMBLY(MECH) 4849A10015A 548490-3 ACCUMULATOR ASSEMBLY(MECH) 4849A10018A 447910 BARRIER ASSEMBLY, OUTDOOR 4791A20012B 430411 BASE ASSEMBLY, WELD(OUTDOOR) 3041A20047D 561411 COIL ASSEMBLY, EXPANSION 6141A20009A 561410-1 COIL ASSEMBLY, REVERSING VALVE(H/GAS)
  • Page 180 Replacement parts list CRUN1008T0 PART NO. LOCATION NO. DESCRIPTION REMARK CRUN1008T0 435511 COVER(CONTROL BOX) 3550A20146A 165010-1 SENSOR ASSEMBLY(HIGH) 6501A20004A 165010-2 SENSOR ASSEMBLY(LOW) 6501A20004B 263230-1 THERMISTOR ASSEMBLY(D-PIPE/S-PIPE) 6323A20011D 263230-2 THERMISTOR ASSEMBLY(CON(A)/CON(B)/AIR) 6323A20009A 263230-3 THERMISTOR ASSEMBLY(INVERTER D-PIPE) 6323A20001E 349940 ORIFICE ASSEMBLY 4949A10005A 352111-1 TUBE ASSEMBLY,CONNECTOR 5211A20744A...
  • Page 181 Replacement parts list CRUN1008T0 PART NO. LOCATION NO. DESCRIPTION REMARK CRUN1008T0 559910 FAN ASSEMBLY,PROPELLER 5901A10029A 561410-1 COIL ASSEMBLY,SOLENOID(LIQ(I)) 6141A10001A 561410-2 COIL ASSEMBLY,SOLENOID(LIQ(C)) 6141A10001B 561410-3 COIL ASSEMBLY,SOLENOID(H/GAS) 6141A10001C 561410 COIL ASSEMBLY,REVERSING VALVE 6141A20010A 561411-1 COIL ASSEMBLY,EXPANSION 6141A20009C 561411-2 COIL ASSEMBLY,EXPANSION 6141A20009E 566001 SWITCH,MAGNET 2A01031H...

  • Page 182: Control Devices And Functions

    Control Devices and Functions Outdoor Unit...

  • Page 183: Control Devices And Function

    Control Device and Functions 1. Control Devices and Function 1.1 Wired Remote Control ............184 1.2 Wireless Remote Control ..........185 1.3 Simple Central Control............186 1.4 Group Control with wired Remote Control......192 2. Deluxe Central Control 2.1 Introduction................193 3. Installation 3.1 Transmission between indoor units and outdoor unit ..199 3.2 Addressing of indoor units..........201 3.3 Group number setting for indoor units......204 3.4 Optional operation.............207...

  • Page 184: Control Devices And Function

    Control Devices 1. Control Devices and Function 1.1 Wired Remote Control 1.1.1 Appearance and Functions Appearance Functions (Button Descriptions) Ceiling Mounted Cassette Type: No. Name Function CRNN -TC/TD/TE Operation display Displays the operation conditions. Convertible Type: Operation starts when this button is pressed, and On/Off stops when the button is pressed again.

  • Page 185: Wireless Remote Control

    Control Devices 1.2 Wireless Remote Control 1.2.1 Appearance and Functions Appearance Functions (Button Descriptions) No. Name Function Mounted Type: CRNN -SR/ST Art Cool Type: CRNN -SP/SV/SU Operation starts when this button is pressed and START/STOP stops when the button is pressed again. OPERATION MODE Used to select the operation mode.

  • Page 186: Simple Central Control

    Control Devices 1.3 Simple Central Control 1.3.1 Features • Easy operation button. • Independent operation for 16 indoor units each. • Simultaneous turn ON/OFF for all of indoor units connected. • Easy change operation mode to cooling or heating • Set and clear lock-mode for each indoor unit •...

  • Page 187: Electrical Wiring

    Control Devices 1.3.3 Electrical wiring PICTORIAL VIEW OF THE CONNECTION Outdoor unit Outdoor unit : SUB PCB MAIN PCB : TERMINAL BLOCK Control Box Earth Shield Line Control To Indoor unit JIG2 JIG1 MAIN PCB CENTRAL SUB PCB CONTROL UNIT To Indoor Units •...
  • Page 188 Control Devices 2 OR MORE SIMPLE CENTRAL CONTROL CONNECTION Indoor unit Indoor unit MAIN PCB <Group Number 0> Central To Indoor Master control DIP SWITCH Units Unit 1 Outdoor unit Outdoor unit The connection of Master and Slave : SUB PCB Indoor unit Indoor unit T.B : TERMINAL BLOCK...

  • Page 189: Test Run Method

    Control Devices 1.3.5 Test run method 1. Set the wiring of system and indoor unit. 2. Apply power to the setting. 3. Do auto addressing to the outdoor unit. 4. After addressing then initialize the central controller(Check up Dip Swtich ON('1')). •...
  • Page 190 Control Devices INSTALLATION ORDER Remove upper & lower case. Fixate screw in the holes of the For Dip switch, and Rotary case bottom. switch setting, refer to the page “How to Install”. For wiring connection, refer page Adjust the upper case in accor- Check the operation by supply- “Installation Procedure”...

  • Page 191: Rotary Switch

    Control Devices . ROTARY SWITCH SETTING(INSTALLATION FOR 2 OR MORE SIMPLE CENTRAL CONTROL) The setting of Group Number in the Central Control is done by the rotary switch as shown in the figure below. It is possible to set 0~15 Group(Total 16 Groups). All the numbers on the rotary switch represent the different Group Numbers.

  • Page 192: Group Control With Wired Remote Control

    Control Devices 1.4 Group Control with Wired Remote Control It operates maximum 16 Units by only one Wired Remote Control, and each Unit starts sequentially to prevent overcurrent. Main PCB Indoor Unit 1 Indoor Unit 2 Indoor Unit 16 Terminal(Local Supply) Terminal(Local Supply) Terminal(Local Supply) Block...

  • Page 193: Deluxe Central Control 2.1 Introduction

    Where needs from a new customer occur or where purchase of additional air conditioner is done, the Deluxe Central control can be smoothly installed. Outdoor Unit Indoor Indoor Indoor Deluxe Unit #1 Unit #2 Unit #3 Central control Indoor ……… Indoor Unit #240 Unit #256 Figure 1) Overview of LG MultiV Central Control System Service Manual 193...
  • Page 194 Deluxe Central Control 2.1.2 Major Characteristics Figure 2) Deluxe Central control 1. Individual/Integrated Operation/Monitoring You can identify operation status of the air conditioner, operation mode, wind quantity, wind direction, locking, temperature setting and error, etc by selecting the installed air conditioner through individual selection, group selection or all selection.
  • Page 195 Deluxe Central Control 6. Convenient GUI / Touch Screen Not requires special education for using the Deluxe Central control, conveniently used only by pressing the buttons on the screen, and its function can be understood with intuitive pictogram. Especially schedule setting is done by simply dragging the screen as patented technology differently from the existing system requiring to press the button by more than average 30 times to enter a schedule.
  • Page 196 Deluxe Central Control Figure 3) Deluxe Central control Table 1) Comparison Between Central control Characteristics Internet Central control PC Central control Deluxe Central control Dedicate PC Non-required Required Non-required Configuration User S/W User S/W, Engine S/W Main Body of Web Pad Deluxe Central control Position of program Download to i-GW...

  • Page 197: System Control

    Deluxe Central Control 2.1.3 Major Function of Deluxe Central control [ System Control ] To check general monitor function of the air con central control system such as selection of group and air conditioner, air conditioner control monitor function etc. [ System Monitor ] To check the current actual time status of the whole of air conditioner.

  • Page 198: System Configuration

    Deluxe Central Control 2.1.4 System Configuration Scenario 1 : In case of not using Internet access function Product B part A part Control System Multi-V Interface Delux Central Control PI485 PI485 Cross UTP Cable (Cross LAN Cable) RS-485 Cable PI485 PI485 Main Specifications 1.

  • Page 199: Installation

    Installation Installation 3. Installation 3.1 Transmission between indoor units and outdoor unit 1) Transmission cable • Types : shielding wire CVVS or CPEVS • Diameter : over 0.75mm • Insulation material : PVC • Maximum allowable temperature: 60°C • Maximum allowable line length: under 300m 2) Remote control cable •...
  • Page 200 Installation Example connection of transmission wire : 3 Phase power line Power supply switch (Switch/Fuse) : Single phase power line Power supply : Transmission line(2 wire) 3 phase 50Hz 380~415V Power supply 1 phase 50Hz 220~240V Outdoor Unit Control Box Central controller Indoor unit Vcc GND...

  • Page 201: Addressing Of Indoor Units

    Installation 3.2 Addressing of indoor units • The address of indoor units would be set by Automatic addressing - CRUN1008T0 Press the switch(SW02M) of outdoor unit for 5 seconds 7-segment of Main PCB in outdoor unit : displays "88" 2~3 minutes passed after , the address of each indoor unit is displayed at each wired remote controller or display device of each indoor unit.
  • Page 202 Installation The procedure of automatic addressing(CRUN1008T0) Outdoor Unit...
  • Page 203 Installation The procedure of automatic addressing(CRUN458S0) 1 minutes Stop pressing SW01M Service Manual 203...

  • Page 204: Group Number Setting For Indoor Units

    Installation 3.3 Group number setting for indoor units 3.3.1 Process fot Group Number Setting Confirm the power of whole system(indoor unit, outdoor unit) is OFF, otherwise turn off. The transmission lines connected to C, D of simple central controller should be connected to C,D terminal port for central control of outdoor unit with care for their polarity (C C, D DC power line(12V) and ground line should be connected to terminal block of adjacent indoor unit...
  • Page 205 Installation Wiring Diagram for Simple Central Control Outdoor Unit 1 Control box Control Board < Group Number 0 > Central Control Master Unit 1 SWITCH For Master the First switch of DIP switch should be ON and the other three switches can be On or Off (Don ’t Care Condition) The connection of Master and Slave Outdoor Unit 2 Control box...
  • Page 206 Installation Position of rotary switch on the indoor unit Cassette, Duct, Convertible type indoor unit Group ID rotary S/W Indoor unit ID rotary S/W Wall Mounted type indoor unit Group ID rotary S/W Indoor unit ID rotary S/W Artcool type indoor unit Group ID S/W Indoor unit ID rotary S/W Outdoor Unit...

  • Page 207: Optional Operation

    Installation 3.4 Optional operation 1) Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room temperature is controlled by the thermistor of the main body. •...
  • Page 208 Installation 2) Adjusting air volume to the height of ceiling You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the com- fortable atmosphere to consumers. Procedure 1. Choose the selectable position in the table after measuring the height of ceiling. Ceiling height Mode of slide switch Change of air volume...

  • Page 209: Trouble Shooting Guide

    Trouble shooting guide Service Manual 209...
  • Page 210 Trouble shooting guide 1. The phenomena from main component failure ......211 2. Checking Method for Key Components ................212 2.1 Compressor ............213 2.2 Linear Expansion Valve ..............216 2.3 3Phase Bridge Diode ..........217 2.4 IPM(Integrated Power Module) ...................218 2.5 Others 3. Self-diagnosis function ...............219 Trouble Shooting Guide...

  • Page 211: The Phenomena From Main Component Failure

    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 212: Checking Method For Key Components

    Checking Method for Key Components 2. Checking Method for Key Fompornents 2.1 Compressor Caution Turn-off the main power of the indoor/outdoor unit before check Cheking Method 1 Check the compressor 1. Check an electric leakang with DC 500V megger Comp. pipe Uncover the compressor terminal cover, and then unplug compressor power cable from the terminal.

  • Page 213: Linear Expansion Valve

    Checking Method for Key Components 2.2 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 214 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 215 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 216: 3Phase Bridge Diode

    Checking Method for Key Components 2.3 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 217: Ipm(Integrated Power Module)

    Checking Method for Key Components 2.4 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 218: Others

    Checking Method for Key Components 2.5 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 219: Self-Diagnosis Function

    Self-diagnosis function 3. Self-diagnosis function Error Indicator • The function is to self-diagnose airconditioner and indicate the problems, if any. • 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 220 Self-diagnosis function Error code 52, 53, 54, 56, 57 are applied only to CRUN1008T0 Display Title Cause of Error CT sensor CT sensor open or short Inverter compressor discharge pipe Inverter compressor dischare pipe sensor open or sensor (discharge temperature) short Low pressure sensor open or short Low pressure sensor...
  • Page 221 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Indoor unit sensor(air) It is occurred that the • The temperature sensor unplugged Indoor unit sensor temperature sensor may • The sensor may be open or short (inlet pipe) detect abnormal value •...
  • Page 222 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code In the case that indoor unit • Wired remote controller PCB may be Wired remote controller can not receive any signal poor indoor unit transmission from wired remote controller •...
  • Page 223 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Malfunction of float switch of drain Although operation signal of pump Fault of drain pump drain pump is occurred, the • Malfunction of drain pump float switch send full signal •...
  • Page 224 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Automatic addressing problem. • Unplugging of transmission connector Outdoor unit In the case that indoor unit • Misconnection or open of transmission cable can not receive any signal indoor unit •...
  • Page 225 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Cause of error Meaning code • Example: When one or more indoor units are All indoor units are not Different operated in cooling mode, if an indoor unit which is operating in the same mode.
  • Page 226 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • An instant over current in the U,V,W phase of The protection operation of compressor inverter compressor driving • Overheat of IPM for malfunction of heat radiation DC Peak device(IPM) for over •...
  • Page 227 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Malfunction of compressor When current detection is • Blocking of pipe Max CT over the maximum current • Malfunction of current detection circuit limit •...
  • Page 228 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Poor connection on DC link terminal DC charging is not • Malfunction of starting relay performed for 45 sec. after • Malfunction of capacitor DC link starting relay turn on (initial •...
  • Page 229 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Malfunction of high pressure switch Compressor off has occurred • Fan lock of indoor or outdoor unit High pressure 3 times in1 hour • Obstacles of indoor or outdoor heat exchanger •...
  • Page 230 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Input voltage is out of Low / over • Abnormal of Input power voltage tolerance of rating voltage voltage • Malfunction of circuit for detection of voltage Trouble shooting Flow Is normal input voltage? Check power supply system...
  • Page 231 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Abnormal of sensor for detecting temperature of Due to over rising of Discharge discharge gas from compressor inverter compressor temperature • Malfunction of circuit for detection of temperature discharge temperature, (inverter of discharge gas from compressor...
  • Page 232 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Abnormal of sensor for detecting temperature of Discharge Due to over rising of discharge gas from compressor temperature constant speed compressor • Malfunction of circuit for detection of temperature (constant discharge temperature, of discharge gas from compressor...
  • Page 233 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Due to high pressure, Compressor off has occurred • Malfunction of high pressure sensor 3 times in1 hour • Fan lock of indoor or outdoor unit High pressure •...
  • Page 234 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Abnormal of sensor for detecting pressure of Compressor off has occurred suction pipe of compressor 3 times in1 hour • Malfunction of circuit for detecting pressure of Low pressure suction pipe of compressor The suction pressure of...
  • Page 235 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code 40, 41, •The temperature sensor is unplugged 42, 43, •The sensor is open or short by its inferiority Sensor Sensor detects abnormal 44, 45, •PCB inferiority error value 46, 47,...
  • Page 236 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code The total capacity of indoor units being connected is Indoor over rated capacity of • Over connection to outdoor unit capacity connection outdoor unit by 130% (10HP), •...
  • Page 237 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Transmission In the case that main PCB error from • The connector for transmission disconnected can not receive any signal inverter PCB to • The transmission line is misconnected or shorted from inverter PCB main PCB in •...
  • Page 238 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Transmission • The connector for transmission disconnected error from In the case that main PCB • The transmission line is misconnected or shorted indoor unit to can not receive any signal •...
  • Page 239 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Reverse • Inverter PCB is abnormal connection of • One of the R,S,T line is disconnected R,S,T power • Connection order of R,S,T line is changed line Trouble shooting Flow Is the R,S,T power...
  • Page 240 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code Transmission • Group setting is not carried out In the case that main PCB error from • Transmission connector unplugged can not receive any signal central •...
  • Page 241 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code • Group setting is not carried out Transmission In the case that central • Transmission connector unplugged error from main controller can not receive • Transmission cable misconnected / disconnection PCB in the any signal •...
  • Page 242 Self-diagnosis function Fault diagnosis and Trouble shooting guide Display Title Meaning Cause of error code In the case that inverter Transmission PCB can not receive any • The connector for transmission disconnected error from main signal • The transmission line is misconnected or shorted PCB to inverter from main PCB •...

  • Page 243: Appendix

    Appendix Service Manual 243...
  • Page 244 Position of the LED01Y in inverter board Position of the LED01Y in inverter board CRUN10080T Inverter board LED 01Y Appendix...
  • Page 245 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 246 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 247 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 248 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 249 P/No.: 3828A20279A Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.

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