LG ARNU07GB1G1 Service Manual Download

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LGE Internal Use Only

■

Healthy Dehumidification Mode

• When the dehumidification operation input by the remote controller is received, the intake air temperature is

detected and the setting temp is automatically set according to the intake air temperature.

26°C

≤

Intake Air Temp => 25°C

24°C

≤

Intake Air Temp < 26°C => Intake Air Temp-1°C

18°C

≤

Intake Air Temp < 24°C => Intake Air Temp-0.5°C

Intake Air Temp < 18°C => 18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification

operation and 4-min compressor off repeat

Compressor ON Temp. => Setting Temp+0.5°C

Compressor OFF Temp. => Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■

Heating Mode Operation

• When the intake air Temp. reaches Compressor OFF Temp., the compressor is turned off.

When the intake air Temp. reaches Compressor ON Temp., the compressor is turned on.

Compressor ON Temp. => Setting Temp. +2˚C

Compressor OFF Temp. => Setting Temp.+4°C

• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 26®¨C , when above 28°C ,

it operates with the low or setting airflow speed (while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp 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 temp.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■

Defrost Control

• While in heating mode operation in order to protect the evaporator pipe of outdoor unit from freezing, reversed

to cooling cycle to defrost the evaporator pipe of the outdoor unit.

• Defrost control is available 30 minutes later since heating mode operation started, and it will not polong over 6

minutes.

• Deicing starts only when the outdoor pipe temperature falls below -6°C after 30 minutes passed from starting of

heating operating and more than 10 minutes operation of compressor.

• Deicing ends after 6 minutes passed from starting of deice operation or when the outdoor pipe temperature rises

over 12°C even if before 6 minutes.

■

Fuzzy Operation (Outdoor unit C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting

temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C

Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the

intake air temp at that time.

Operation Details

Summary of Contents for ARNU07GB1G1

Page 1: ...itioner SVC MANUAL MODEL ARUV ARUN Series ARNU Series CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Page 2: ...nformation 16 Indoor Units 19 Ceiling Mounted Cassette Type 1 way 21 Ceiling Mounted Cassette Type 2 way 29 Ceiling Mounted Cassette Type 4 way 39 Art Cool Type 51 Art Cool Type Wide 65 Art Cool Type Mirror 79 Ceiling Concealed Duct Type Low static 95 Ceiling Concealed Duct Type Built in 105 Ceiling Concealed Duct Type High static 115 Wall Mounted Type 127 Convertible Type 141 Floor Standing Type ...

Page 3: ...of injury or damage to properties only Be sure not to do Be sure to follow the instruction WARNING Installation Have all electric work done by a licensed electrician according to Electric Facility Engineering Standard and Interior Wire Regulations and the instructions given in this manual and always use a special circuit If the power source capacity is inadequate or electric work is performed impr...

Page 4: ... for strong wind or earthquake and install the unit at the specified place Improper installation may cause the unit to top ple and result in injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product When installing and moving the air condition er to another site do not charge it with a different refrigerant from the refrigerant specif...

Page 5: ...t the refrigerant concentration from exceeding the safety limit when the refrigerant leaks Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceed ed Should the refrigerant leak and cause the safety limit to be exceeded harzards due to lack of oxy gen in the room could result Do not damage or use an unspecified power cord There is risk of fire electric s...

Page 6: ...o not open the inlet grille of the product during operation Do not touch the electro static filter if the unit is so equipped There is risk of physical injury electric shock or product failure Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Do not install the product where the noise or hot air from the outdoor uni...

Page 7: ...ch as cutting the finger Also the damaged fin may result in degradation of capacity When installting the unit in a hospital com munication station or similar place provide sufficient protection against noise The inverter equipment private power generator high frequency medical equipment or radio com munication equipment may cause the air condition er to operate erroneously or fail to operate On th...

Page 8: ...allation area does not deteri orate with age If the base collapses the air conditioner could fall with it causing property damage product failure or personal injury Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual A bad connection may cause water leakage Be very careful about product transportation Only one person should not carry t...

Page 9: ...eason Do not touch any of the refrigerant piping during and after operation It can cause a burn or frostbite Do not operate the air conditioner with the panels or guards removed Rotating hot or high voltage parts can cause injuries Do not directly turn off the main power switch after stopping operation Wait at least 5 minutes before turning off the main power switch Otherwise it may result in wate...

Page 10: ...ses LGE Internal Use Only 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 Outdoor Units information 16 ...

Page 11: ... 1 1 Way TJ ARNU07GTJ 1 ARNU09GTJ 1 ARNU12GTJ 1 2 Way TL ARNU18GTL 1 ARNU24GTL 1 4 Way TE ARNU09GTE 1 ARNU12GTE 1 ARNU18GTE 1 TH ARNU24GTH 1 ARNU28GTH 1 TD ARNU36GTD 1 ARNU42GTD 1 ARNU48GTD 1 BH ARNU07GBHA1 ARNU09GBHA1 ARNU12GBHA1 ARNU15GBHA1 ARNU18GBHA1 ARNU24GBHA1 High Static BG ARNU28GBGA1 ARNU36GBGA1 ARNU42GBGA1 BR ARNU48GBRA1 Low Static B1 ARNU07GB1G1 ARNU09GB1G1 ARNU12GB1G1 B2 ARNU18GB2G1 AR...

Page 12: ...ARNU18GS5A1 ARNU24GS5A1 ARNU07GSE 1 ARNU09GSE 1 ARNU12GSE 1 ARNU18GS3 1 ARNU24GS3 1 ARNU07GSP 1 ARNU09GSP 1 ARNU12GSP 1 ARNU18GSV 1 Ceiling Concealed Duct Built in ARNU09GVEA1 ARNU12GVEA1 ARNU18GVJA1 ARNU24GVJA1 Floor Standing With case ARNU07GCEA1 ARNU09GCEA1 ARNU12GCEA1 ARNU18GCFA1 ARNU24GCFA1 Without case ARNU07GCEU1 ARNU09GCEU1 ARNU12GCEU1 ARNU18GCFU1 ARNU24GCFU1 Ceiling Concealed Duct High St...

Page 13: ...1 ARUV1008T1 ARUN1008T1 ARUV1208T1 ARUN1208T1 ARUV1408T1 ARUN1408T1 ARUV1608T1 ARUN1608T1 ARUV1808T1 ARUN1808T1 ARUV2008T1 ARUN2008T1 ARUV2208T1 ARUN2208T1 ARUV2408T1 ARUN2408T1 ARUV2608T1 ARUN2608T1 ARUV2808T1 ARUN2808T1 ARUV3008T1 ARUN3008T1 ARUV3208T1 ARUN3208T1 ARUV3408T1 ARUN3408T1 ARUV3608T1 ARUN3608T1 ARUV3808T1 ARUN3808T1 ARUV4008T1 ARUN4008T1 5 6 8HP 8 10 12 14HP 16 18 20 22 24HP 26 28 30...

Page 14: ...s Up to a maximum 40HP are realized by combining 8 10 12 and 14HP System Capacity Number of Units 50Hz Module 5 6 8 10 12 14 Main Sub Main Sub Main Sub Main Sub Main Sub Main Sub 5HP 1 1 6HP 1 1 8HP 1 1 10HP 1 1 12HP 1 1 14HP 1 1 16HP 2 1 1 18HP 2 1 1 20HP 2 1 1 22HP 2 1 1 24HP 2 1 1 26HP 3 2 1 28HP 3 1 1 1 30HP 3 1 2 32HP 3 2 1 34HP 3 1 1 1 36HP 3 1 2 38HP 3 2 1 40HP 3 1 1 1 ...

Page 15: ...s that this is System Indoor Unit using the R410A ARU N 8 100 T 1 Serial Number Air Discharge Type S Side Discharge T Top Discharge Electrical Ratings 8 3Ø 380 415V 50Hz 9 3Ø 380V 60Hz A 3Ø 220V 50Hz B 3Ø 220V 60Hz Total Cooling Capacity in Horse Power HP unit EX 4 5HP 45 10HP 100 Combination of Inverter Type and Cooling Only or Heat Pump N AC Inverter and H P V AC Inverter and C O H H P Sub Unit ...

Page 16: ...08T1 ARUV1208T1 ARUV1208T1 ARUV1008T1 ARUC808T1 ARUC808T1 ARUC1008T1 ARUC1008T1 ARUC1208T1 ARUC808T1 ARUC808T1 16 16 16 16 16 24 2 1 0 1 2 2 20 20 20 22 24 32 300x2 300x2 300x2 300x2 300x2 300x3 661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x3 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x3 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x...

Page 17: ...20 20 22 24 32 300x2 300x2 300x2 300x2 300x2 300x3 661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x3 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x3 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x3 Ø12 7 1 2 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø19 05 3 4 Ø28 58 1 1 8 Ø28 58 ...

Page 19: ...nal Use Only Part 2 Indoor Units Ceiling Cassette 1 Way 21 2 Way 29 4 Way 39 Art Cool Series Art Cool 51 Art Cool Wide 65 Art Cool Mirror 79 Ceiling Concealed Duct Low Static 95 Built In 105 High Static 115 Wall Mounted General Wall Mounted 127 Convertible Convertible 141 Floor Standing Floor Standing 153 ...

Page 21: ... Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 22 2 Functions 23 3 Operation Details 24 4 Dimensions 26 5 Piping Diagrams 27 6 Wiring Diagrams 28 Ceiling Mounted Cassette Type 1Way ...

Page 22: ...8 9x0 8 2x9x21 2x9x21 2x9x21 0 13 0 13 0 13 Cross Flow Fan Cross Flow Fan Cross Flow Fan 45 45 45 0 18 0 18 0 18 7 5 6 5 6 7 5 6 5 6 8 7 6 265 229 212 265 229 212 283 247 212 Direct Direct Direct BLDC BLDC BLDC Microprocessor Thermostatforcoolingandheating Microprocessor Thermostatforcoolingandheating Microprocessor Thermostatforcoolingandheating Foamed polystrene Foamed polystrene Foamed polystre...

Page 23: ...ife filter Long life wrinkle type and washable and anti bacteria filter is adopted High head Drain pump Built in drain pump automatically drains water A standard drain head height of up to 700mm is possible High Ceiling corresponding Function According to the height of ceiling the RPM of indoor fan motor is selected to increase air reaching distance Central Control Optional It is operating individ...

Page 24: ...ling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the remote con troller and the operation diagram is as following 1 The function of main control Operation Detail Thermal ON Thermal OFF Indoor Unit mode ST 0 5 ST 0 5 2TH Remo Indoor To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo contras...

Page 25: ...s following 25 C 27 C 35 C 30 C 22 C Pipe temperature OFF Indoor fan speed LO LOW LOW SELECTED FAN LOW LOLOW COMP ON Operation Detail Thermal OFF ON OFF ON ON ON Outdoor fan Indoor fan 4 Way ON Room Temperature Thermal Off Thermal On Indoor pipe Temperature 33 39 C 25 C 22 20 C 36 42 C Minimum 3min Setting fan speed Setting fan speed Setting fan speed Stop Low Stop Stop Low Low Low Low Thermal ON ...

Page 26: ...nly 4 Dimensions Dimensions ARNU07GTJ 1 ARNU09GTJ 1 ARNU12GTJ 1 4 1 2 3 860 32 8 410 344 4 961 2 16 5 19 1 50 83 36 30 242 5 173 151 100 56 83 138 131 110 16 4 198 8 480 939 1070 Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection ø12 7 flare 3 Air suction grill 4 Air discharge grill ...

Page 27: ...ight reserved Only for training and service purposes LGE Internal Use Only Heat Exchanger C F F lndoor unit Thermistor EEV Filter Filter Heating Cooling Refrigerant pipe connection port diameter Model ARNU07GTJ 1 ARNU09GTJ 1 ARNU12GTJ 1 Gas 12 7 1 2 Liquid 6 35 1 4 unit mm inch ...

Page 28: ...OTOR2 FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN DISP1 DISPLAY DISPLAY OF INDOOR STATUS CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN STEP M1 STEP MOTOR STEP MOTOR OUTPUT CN FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING CN PIPE PIPE SENSOR PIPE THERMISTOR CN PIPE O DISCHARGE PIPE SENSOR DISCHAR...

Page 29: ... Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 30 2 Functions 32 3 Operation Details 33 4 Dimensions 35 5 Piping Diagrams 36 6 Wiring Diagrams 37 Ceiling Mounted Cassette Type 2Way ...

Page 30: ... ARNU18GTL 1 5 600 4 800 19 100 6 300 5 400 21 500 Galvanized Steel Plate 830x550x225 32 6x21 6x8 9 1050x640x28 5 41 3x25 2x1 1 2x11x20 0 13 Cross Flow Fan 70 0 36 13 12 10 459 424 353 Direct BLDC Microprocessor Thermostat for cooling and heating Foamed polystrene Fuse Ø6 35 1 4 Ø12 7 1 2 25 0 28 61 7 40 35 30 1 220 240 50 1 220 60 EEV CV2 0 X 3C CVV SB 1 25 X 2C Morning fog PT HL Notes 1 Capaciti...

Page 31: ...L 1 7 100 6 100 24 200 8 000 6 900 27 300 Galvanized Steel Plate 830x550x225 32 6x21 6x8 9 1050x640x28 5 41 3x25 2x1 1 2x11x20 0 13 Cross Flow Fan 70 0 36 17 15 13 601 530 459 Direct BLDC Microprocessor Thermostat for cooling and heating Foamed polystrene Fuse Ø9 52 3 8 Ø15 88 5 8 25 0 28 61 7 42 37 32 1 220 240 50 1 220 60 EEV CV2 0 X 3C CVV SB 1 25 X 2C Morning fog PT HL Notes 1 Capacities are b...

Page 32: ...ong life wrinkle type and washable and anti bacteria filter is adopted High head Drain pump Built in drain pump automatically drains water A standard drain head height of up to 700mm is possible High Ceiling corresponding Function According to the height of ceiling the RPM of indoor fan motor is selected to increase air reaching distance Central Control Optional It is operating individually or tot...

Page 33: ...ling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the remote con troller and the operation diagram is as following 1 The function of main control Operation Detail Thermal ON Thermal OFF Indoor Unit mode ST 0 5 ST 0 5 2TH Remo Indoor To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo contras...

Page 34: ...s following 25 C 27 C 35 C 30 C 22 C Pipe temperature OFF Indoor fan speed LO LOW LOW SELECTED FAN LOW LOLOW COMP ON Operation Detail Thermal OFF ON OFF ON ON ON Outdoor fan Indoor fan 4 Way ON Room Temperature Thermal Off Thermal On Indoor pipe Temperature 33 39 C 25 C 22 20 C 36 42 C Minimum 3min Setting fan speed Setting fan speed Setting fan speed Stop Low Stop Stop Low Low Low Low Thermal ON ...

Page 35: ... Internal Use Only 4 Dimensions Dimensions ARNU18GTL 1 ARNU24GTL 1 830 A B 47 9 275 550 69 5 889 2 1050 640 28 5 4 3 1 2 TL A B 225 126 5 unit mm Number Name Descripition 1 Liquid pipe connection 18k Ø6 35 24k Ø9 52 2 Gas pipe connection 18k Ø12 7 24k Ø15 88 3 Air discharge grill 4 Air suction grill ...

Page 36: ...vice purposes LGE Internal Use Only 5 Piping Diagrams Piping Diagrams Heat Exchanger C F F lndoor unit Thermistor EEV Filter Filter Heating Cooling Refrigerant pipe connection port diameter Model ARNU18GTL 1 ARNU24GTL 1 Gas Ø12 7 1 2 Ø15 88 5 8 Liquid Ø6 35 1 4 Ø9 52 3 8 unit mm inch ...

Page 37: ...OUTPUT MOTOR OUTPUT OF BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN DISP1 DISPLAY DISPLAY OF INDOOR STATUS CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN STEP M1 STEP MOTOR STEP MOTOR OUTPUT CN FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING CN PIPE PIPE SENSOR PIPE THERMISTOR CN PIPE O DISCHARGE PIPE SENSOR DISCHARGE PIPE THERMIST...

Page 39: ... Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 40 2 Functions 43 3 Operation Details 44 4 Dimensions 46 5 Piping Diagrams 48 6 Wiring Diagrams 49 Ceiling Mounted Cassette Type 4Way ...

Page 40: ...ns Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Panel Color 4 Way Ceiling Cassette ARNU09GTE 1 ARNU12GTE 1 ARNU18GTE 1 2 800 3 600 5 600 2 400 3 100 4 800 9 600 12 300 19 100 3 200 4 000 6 300 2 800 3 400 5 400 10 900 13 600 21 500 Galvanized Steel Plate Galvaniz...

Page 41: ...mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Panel Color 4 Way Ceiling Cassette ARNU24GTH 1 ARNU28GTH 1 ARNU36GTD 1 7 100 8 200 10 600 6 100 7 100 9 100 24 200 28 000 36 200 8 000 9 200 11 900 6 900 8 000 10 200 27 300 31 500 40 600 Galvanized Steel Plate Galvanized Steel...

Page 42: ...Fan Air Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Panel Color 4 Way Ceiling Cassette ARNU42GTD 1 ARNU48G...

Page 43: ...d washable and anti bacteria filter is adopted High head Drain pump Built in drain pump automatically drains water A standard drain head height of up to 700mm is possible High Ceiling corresponding Function According to the height of ceiling the RPM of indoor fan motor is selected to increase air reaching distance Central Control Optional Swirl Swing Control It is operating individually or totally...

Page 44: ...ill operate according to the setting by the remote con troller and the operation diagram is as following Swirl Swing Control Vane 2 4 is almost vane closed while vane1 3 is opened Vane 1 3 and vane 2 4 turn over minutely 1 The function of main control Operation Detail Vane 2 Vane 1 Vane 3 Vane 4 Thermal ON Thermal OFF Indoor Unit mode ST 0 5 ST 0 5 2TH Remo Indoor To be selected higher temperature...

Page 45: ...s following 25 C 27 C 35 C 30 C 22 C Pipe temperature OFF Indoor fan speed LO LOW LOW SELECTED FAN LOW LOLOW COMP ON Operation Detail Thermal OFF ON OFF ON ON ON Outdoor fan Indoor fan 4 Way ON Room Temperature Thermal Off Thermal On Indoor pipe Temperature 33 39 C 25 C 22 20 C 36 42 C Minimum 3min Setting fan speed Setting fan speed Setting fan speed Stop Low Stop Stop Low Low Low Low Thermal ON ...

Page 46: ...20 4 30 521 670 570 450 40 110 110 670 670 4 1 3 2 5 6 Unit mm 570 Unit size 570 Unit size 450 Hanging bolt 75 75 600 Ceiling opening 600 Ceiling opening 521 Hanging bolt 39 5 39 5 unit mm Number Name Descripition 1 Liquid pipe connection Unit size 9k 12k 18k Ø6 35 2 Gas pipe connection Unit size 9k 12k 18k Ø12 7 3 Drain pipe connection 4 Power supply connection 5 Air discharge grill 6 Air suction...

Page 47: ...85 840 672 840 Unit size 840 Unit size 672 Hanging bolt 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 Unit mm 4 1 2 950 950 5 6 225 70 4 47 84 139 8 TD TH 3 unit mm Number Name Descripition 1 Liquid pipe connection Unit Size 24k 28k 36k 42k 48k Ø9 52 2 Gas pipe connection Unit Size 24k 28k 36k 42k 48k Ø15 88 3 Drain pipe connection 4 Power supply connection 5 Air disch...

Page 48: ...r unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter Model ARNU09GTE 1 ARNU12GTE 1 ARNU18GTE 1 ARNU24GTH 1 ARNU28GTH 1 ARNU36GTD 1 ARNU42GTD 1 ARNU48GTD 1 Gas Ø12 7 1 2 Ø12 7 1 2 Ø12 7 1 2 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Liquid Ø6 35 1 4 Ø6 35 1 4 Ø6 35 1 4 Ø9 52 3 8 Ø9 52 3 8 Ø9 52 3 8 Ø9 52 3 8 Ø9 52 3 8 unit mm inch ...

Page 49: ...T MOTOR OUTPUT OF BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN DISP1 DISPLAY DISPLAY OF INDOOR STATUS CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN STEP M1 STEP MOTOR STEP MOTOR OUTPUT CN FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING CN PIPE PIPE SENSOR PIPE THERMISTOR CN PIPE O DISCHARGE PIPE SENSOR DISCHARGE PIPE THERMISTOR CN...

Page 51: ...Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specification 52 2 Functions 53 3 Operation Details 54 4 Dimensions 61 5 Piping Diagrams 62 6 Wiring Diagrams 63 Art Cool Type ...

Page 52: ...ce Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Front Panel Position ARTCOOL ARNU07GSP 1 ARNU09GSP 1 ARNU12GSP 1 2 200 2 800 3 600 1 900 2 400 3 100 7 500 9 600 12 300 2 500 3 200 4 000 2 200 2 800 3 400 8 500 10 900 13 600 570x...

Page 53: ...oor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Time Delay Safety Control Indoor Fan Speed Control Operation indication Lamps LED Signal Receptor Receives the signals from the remote control Signal receiving sound two short beeps or one long beep Operation Indication Lamps On Off Lights up during the system operation Sle...

Page 54: ...on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again Cooling Mode Operation When the intake air temperature reaches 0 5 C below the ...

Page 55: ...m airflow speed While in compressor off the indoor fan is off when the indoor pipe temp 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 out door fan is turned on off according to the indoor pipe temp While in defrost control both of the indoor and outdoor fans are turned off...

Page 56: ...umidification heating mode operations is carried out for 10 sec or longer before Fuzzy operation the mode before Fuzzy operation is operated 1 Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compr...

Page 57: ...the setting temperature is automatically selected according to the intake air temp at that time 20 C Intake Air Temp Intake Air Temp 0 5 C Intake Air Temp 20 C 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically accordin...

Page 58: ...ile in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During the JET COOL function at any ...

Page 59: ...ess the button Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor...

Page 60: ...in any operation mode with selecting the function The function is to be stopped while it is operating with selecting the function When an air cleaner function is selected during operation off The function will be only operated When inlet grille of air conditioner is opened during plasma operation High Voltage Generator H V B is to be stopped When inlet grille of air conditioner is closed during pl...

Page 61: ...ernal Use Only 4 Dimensions Dimensions ARNU07GSP 1 ARNU09GSP 1 ARNU12GSP 1 Ø12 7 Ø6 35 7 9 12k Gas Liquid Model 1 Pipe Specification mm Note Unit mm Pipe Hole Fix Hole Hanger Hole H W D More than 20cm More than 50cm More than 1 5m More than 50cm Model ARNU07GSP 1 ARNU09GSP 1 ARNU12GSP 1 W 570 H 568 D 137 ...

Page 62: ...GE Internal Use Only 5 Piping Diagrams Piping Diagrams Heat Exchanger Turbo Fan lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter Color M Metal D Wood B Blue W White Model ARNU07GSP 1 ARNU09GSP 1 ARNU12GSP 1 Gas 12 7 1 2 Liquid 6 35 1 4 unit mm inch ...

Page 63: ...E INPUT FOR INDOOR CONTROLLER CN MOTOR2 FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC CN COM COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN D1 DISPLAY DISPLAY OF INDOOR STATUS CN D2 DISPLAY DISPLAY OF INDOOR STATUS CN LR1 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN LR2 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN UD STEP MOTOR STEP MOTOR OUTPUT CN TH1 R...

Page 65: ...ctronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specification 66 2 Functions 67 3 Operation Details 68 4 Dimensions 75 5 Piping Diagrams 76 6 Wiring Diagrams 77 Art Cool Type Wide ...

Page 66: ...ing Capacity kcal h Btu h W Heating Capacity kcal h Btu h Dimensions W D H Body mm inch Coil Rows x Columns x FPI Face Area m2 Type Motor Output x Number W Running Current A Fan Air Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Wei...

Page 67: ...ically Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Operation indication Lamps LED Soft Dry Operation Mode Both the indoor and outdoor fan stops dur ing defrosting The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28 C Sleep Mode Auto Control Natural Ai...

Page 68: ... restart In case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again Cooling Mode Operation When the intake air tem...

Page 69: ...um airflow speed While in compressor off the indoor fan is off when the indoor pipe temp 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 temp While in defrost control both of the indoor and outdoor fans are turned off...

Page 70: ... among cooling dehumidification heating mode operations is carried out for 10 sec or longer before Fuzzy operation the mode before Fuzzy operation is operated 1 Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor ...

Page 71: ...zy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 C Intake Air Temp Intake Air Temp 0 5 C Intake Air Temp 20 C 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature auto...

Page 72: ...he Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has ...

Page 73: ...according to the intake air temperature as follows 24 C Intake Air Temp Cooling Mode Operation 22 C High Speed 21 C Intake Air Temp 24 C Dehumidification Operation 23 C High Speed Intake Air Temp 21 C Heating Mode Operation 24 C High Speed Test Operation Control To check the condition of the installation when installing the appliance the appliance is operated at cooling mode high speed of airflow ...

Page 74: ...eaner function is selected during Air Conditioner operation Plasma air cleaner function will be operated while in any operation mode with selecting the function The function is to be stopped while it is operating with selecting the function When an air cleaner function is selected during operation off The function will be only operated When inlet grille of air conditioner is opened during plasma o...

Page 75: ...onics Inc All right reserved Only for training and service purposes LGE Internal Use Only ARNU18GSV 1 H W D Pipe Hole Pipe Hole 240mm 60mm 240mm 60mm More than 20cm More than 50cm More than 1 5m More than 50cm Model ARNU18GSV 1 W 928 H 522 D 147 Unit mm ...

Page 76: ... purposes LGE Internal Use Only Piping Diagrams 5 Piping Diagrams Heat Exchanger Turbo Fan lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter Color M Metal D Wood B Blue W White Model Gas Liquid ARNU18GSV 1 Ø12 7 1 2 Ø6 35 1 4 unit mm inch ...

Page 77: ... INPUT FOR INDOOR CONTROLLER CN MOTOR2 FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC CN COM COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN D1 DISPLAY DISPLAY OF INDOOR STATUS CN D2 DISPLAY DISPLAY OF INDOOR STATUS CN LR1 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN LR2 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN UD STEP MOTOR STEP MOTOR OUTPUT CN TH1 RO...

Page 79: ...tronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specification 80 2 Functions 82 3 Operation Details 83 4 Dimensions 90 5 Piping Diagrams 91 6 Wiring Diagrams 92 Art Cool Type Mirror ...

Page 80: ...vice Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Front Panel Position ART COOL Mirror ARNU07GSE 1 ARNU09GSE 1 ARNU12GSE 1 2 200 2 800 3 600 1 900 2 400 3 100 7 500 9 600 12 300 2 500 3 200 4 000 2 200 2 800 3 400 8 500 10 900 1...

Page 81: ... Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Front Panel Position ART COOL Mirror ARNU18GS3 1 ARN...

Page 82: ...ically Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Operation indication Lamps LED Soft Dry Operation Mode Both the indoor and outdoor fan stops dur ing defrosting The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28 C Sleep Mode Auto Control Natural Ai...

Page 83: ... restart In case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again Cooling Mode Operation When the intake air tem...

Page 84: ...he medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33 C when above 35 C it operates with the low airflow speed While in defrost control both of the indoor and outdoor fans are turned off Defrost Control While in heating mode operation in order to protect outdoor unit from freezing reversed to cooling cycle to defrost of the outdoor unit Fuzzy O...

Page 85: ... C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compressor ON Temp Setting Temp 0 5 C Compressor OFF Temp Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 C Intake Air Temp 25 C 24 C Intake Air Temp 26 C I...

Page 86: ...zy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 C Intake Air Temp Intake Air Temp 0 5 C Intake Air Temp 20 C 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature auto...

Page 87: ...he Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has ...

Page 88: ...according to the intake air temperature as follows 24 C Intake Air Temp Cooling Mode Operation 22 C High Speed 21 C Intake Air Temp 24 C Dehumidification Operation 23 C High Speed Intake Air Temp 21 C Heating Mode Operation 24 C High Speed Test Operation Control To check the condition of the installation when installing the appliance the appliance is operated at cooling mode high speed of airflow ...

Page 89: ...eaner function is selected during Air Conditioner operation Plasma air cleaner function will be operated while in any operation mode with selecting the function The function is to be stopped while it is operating with selecting the function When an air cleaner function is selected during operation off The function will be only operated When inlet grille of air conditioner is opened during plasma o...

Page 90: ...RNU12GSE 1 ARNU18GS3 1 ARNU24GS3 1 45 45 4 R7 R208 153 78 52 1030 1030 494 361 970 153 53 13 More than 10cm More than 2 3m More than 5cm More than 5cm Installation plate D H W Pipe See Note Drain Hose H W D More than 10cm More than 2 3m More than 5cm More than 5cm W H D Model ARNU07GSE 1 ARNU09GSE 1 ARNU12GSE 1 ARNU18GS3 1 ARNU24GS3 1 unit mm 915 282 169 1170 315 173 ...

Page 91: ...oor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter SE Color R Mirror V Silver B Blue S3 Color R Mirror M Metal B Blue D Wood W White C Cherry MODEL GAS LIQUID ARNU07GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU09GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU12GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU18GS3 1 Ø12 7 1 2 Ø6 35 1 4 ARNU24GS3 1 Ø15 88 5 8 Ø9 52 3 8 unit mm inch ...

Page 92: ...ION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN L R STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN U D STEP MOTOR STEP MOTOR OUTPUT CN TH2_1 ROOM AIR TEMP SENSOR ROOM THERMISTOR CN_TH2 PIPE IN SENSOR PIPE IN THERMISTOR CN_TH3 PIPE OUT SENSOR PIPE OUT THERMISTOR CN SUC STEP MOTOR FRONT FRONT PANEL STEP MOTOR CN HVB AIR PURIFIER AIR PURIFIER OUTPUT CN VFD DISPLAY...

Page 93: ...BLDC CN COM COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN L R STEP MOTOR STEP MOTOR OUTPUT FOR LEFT RIGHT CN U D STEP MOTOR STEP MOTOR OUTPUT CN TH1 ROOM PIPE SENSOR ROOM PIPE THERMISTOR CN TH2 DISCHARGE PIPE SENSOR DISCHARGE PIPE THERMISTOR CN SUC STEP MOTOR FRONT FRONT PANEL STEP MOTOR CN HVB AIR PURIFIER AIR PURIFIER OUTPUT CN VFD DISPLAY DISPLAY...

Page 95: ...c All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 96 2 Funtion 98 3 Operation Details 99 4 Dimensions 102 5 Piping Diagrams 103 6 Wiring Diagrams 104 Ceiling Concealed Duct Type Low static ...

Page 96: ...ns Gas Side mm inch Drain Pipe Inner Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct Low Static ARNU07GB1G1 ARNU09GB1G1 ARNU12GB1G1 2 200 2 800 3 600 1 900 2 400 3 100 7 500 9 600 12 300 2 500 3 200 4 000 2 200 2 800 3 400 8 500 10 900 13 600 Galvanized Steel Plate Galvanized Steel...

Page 97: ...cfm External Static Pressure Pa Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Inner Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct Low Static ARNU18GB2G1 AR...

Page 98: ...ture reaches 25 C High head height Drain pump A standard drain head height of up to 700mm is possible Central Control Optional It is operating individually or totally by central control function Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temperature Indoor fan is delayed for 5 seconds at the starting High Med Low Intermittent operation of fan a...

Page 99: ...the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C Thermo ON SET TEMPERATURE 0 5 C Thermo OFF More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low 1 The function of main control Operation Details Th...

Page 100: ...ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B C B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40 C fan stops For eluminating latent heat loss fan operates at low speed for 10 seconds periodically To be operated Low except initial Hotstart opera...

Page 101: ...nit Hex Exchanger temperature reaches 30 C The operation diagram is as following Operation Details ON ON Off Off Low Low 1 min Hotstart On Hotstart Off Indoor unit Heat Exchanger temperature Setting fan speed Setting fan speed Thermal Outdoor fan Indoor fan 4way Valve ON 1 min Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation ...

Page 102: ...7GB1G1 ARNU09GB1G1 ARNU12GB1G1 ARNU18GB2G1 ARNU24GB2G1 Front view Top view unit mm unit mm Suitable dimension H is necessary to get a slope to drain as figure C E G D A B I F H Drainage hole 600 600 190 Front 1000 H 20 or more 7 9 12k BTU h 850 900 383 570 93 5 190 20 6 795 163 18 24k BTU h 1130 1180 383 570 93 5 190 20 6 1065 163 Dimension Capacity A B C D E F G H I ...

Page 103: ...ernal Use Only Piping Diagrams 5 Piping Diagrams Heat Exchanger Sirocco Fan lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter MODEL GAS LIQUID ARNU07GB1G1 ARNU09GB1G1 Ø12 7 1 2 Ø6 35 1 4 ARNU12GB1G1 ARNU18GB2G1 ARNU24GB2G1 Ø15 88 5 8 Ø9 52 3 8 unit mm inch ...

Page 104: ...ED DISCHARGE PIPE THERMISTOR CN PIPE PIPE SENSOR WHITE PIPE THERMISTOR CN ROOM ROOM SENSOR YELLOW ROOM THERMISTOR CN REMO REMOTE CONTROLLER GREEN REMOTE CONTROL LINE CN FLOAT FLOAT SWITCH INPUT BLUE FLOAT SWITCH SENSING CN EEV EEV OUTPUT WHITE EEV CONTROL OUTPUT CN D PUMP DRAIN PUMP OUTPUT WHITE AC OUTPUT FOR DRAIN PUMP CN OPTION OPTION PWB WHITE COMMUNICATION BETWEEN MAIN AND OPTION CN COM COMMUN...

Page 105: ...c All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 106 2 Funtion 108 3 Operation Details 109 4 Dimensions 112 5 Piping Diagrams 113 6 Wiring Diagrams 114 Ceiling Concealed Duct Type Built in ...

Page 106: ...Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct Built in PBSGB10 PBSGB10 PBSGB10 ARNU07GB3G1 ARNU09GB3G1 ARNU12GB3G1 2 200 2 800 3 600 1 900 2 400 3 100 7 500 9 600 12 300 2 500 3 200 4 000 2 200 2 800 3 400 8 500 10 900 13 600 Galvanized Steel Plat...

Page 107: ... External Static Pressure Pa Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct Built in PBSGB20 PBSGB20 ...

Page 108: ...ature reaches 25 C High head height Drain pump A standard drain head height of up to 700mm is possible Central Control Optional It is operating individually or totally by central control function Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temperature Indoor fan is delayed for 5 seconds at the starting High Med Low Intermittent operation of fan ...

Page 109: ... the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C Thermo ON SET TEMPERATURE 0 5 C Thermo OFF More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low 1 The function of main control Operation Details T...

Page 110: ...ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B C B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40 C fan stops For eluminating latent heat loss fan operates at low speed for 10 seconds periodically To be operated Low except initial Hotstart opera...

Page 111: ...nit Hex Exchanger temperature reaches 30 C The operation diagram is as following Operation Details ON ON Off Off Low Low 1 min Hotstart On Hotstart Off Indoor unit Heat Exchanger temperature Setting fan speed Setting fan speed Thermal Outdoor fan Indoor fan 4way Valve ON 1 min Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation ...

Page 112: ...4GB4G1 PBSGB20 Acc y PBSC20 Acc y Front view Top view unit mm H 600 600 unit mm Control box Suitable dimension H is necessary to get a slope to drain as given in the figure 625 388 A 302 500 Max 190 With Suction Grille suction canvas With Suction Grilel With Suction Grille suction canvas With Suction Grilel A 250 190 A Btu h A 7 9 12K 938 18 24K 1218 unit mm A B C C B A Built In Suction Grille A B...

Page 113: ...ng Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter unit mm inch MODEL GAS LIQUID ARNU07GB3G1 PBSGB10 Acc y PBSC10 Acc y Ø12 7 1 2 Ø6 35 1 4 ARNU09GB3G1 PBSGB10 Acc y PBSC10 Acc y Ø12 7 1 2 Ø6 35 1 4 ARNU12GB3G1 PBSGB10 Acc y PBSC10 Acc y Ø12 7 1 2 Ø6 35 1 4 ARNU18GB4G1 PBSGB20 Acc y PBSC20 Acc y Ø12 7 1 2 Ø6 35 1 4 ARNU24GB4G1 PBSGB20 Acc y PBSC20 Acc y Ø15 88 5 8 Ø9 52 ...

Page 114: ... O CN ROOM CN REMO AC POWER SUPPLY FAN MOTOR OUTPUT DRAIN PUMP OUTPUT COMMUNICATION EEV OUTPUT FLOAT SWITCH INPUT PIPE SENSOR DISCHARGE PIPE SENSOR ROOM SENSOR REMOTE CONTROLLER AC POWER LINE INPUT FOR INDOOR CONTROLLER MOTOR OUTPUT OF BLDC AC OUTPUT FOR DRAIN PUMP COMMUNICATION BETWEEN INDOOR AND OUTDOOR EEV CONTROL OUTPUT FLOAT SWITCH SENSING PIPE THERMISTOR DISCHARGE PIPE THERMISTOR ROOM THERMI...

Page 115: ... All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 116 2 Funtion 119 3 Operation Details 120 4 Dimensions 123 5 Piping Diagrams 124 6 Wiring Diagrams 125 Ceiling Concealed Duct Type High Static ...

Page 116: ...n OD ID mm Net Weight kg lbs Noise Level SoundPress 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct High Static ARNU07GBHA1 ARNU09GBHA1 ARNU12GBHA1 ARNU15GBHA1 2 2 2 8 3 6 4 5 1 900 2 400 3 100 3900 7 500 9 600 12 300 15400 2 5 3 2 4 0 5 2 200 2 800 3 400 4300 8 500 10 900 13 600 17100 0 118 0 118 0 118 0 118 0 118 0 118 0 118 ...

Page 117: ...ns Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct High Static ARNU18GBHA1 ARNU24GBHA1 ARNU28GBGA1 5 600 7 100 8 200 4 800 6 100 7 100 19 100 24 200 28 000 6 300 8 000 9 200 5 400 6 900 8 000 21 500 27 300 31 500 Galvanized Steel Plate Galvani...

Page 118: ...ns Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Ceiling Concealed Duct High Static ARNU36GBGA1 ARNU42GBGA1 ARNU48GBRA1 10 600 12 300 14 100 9 100 10 600 12 100 36 200 42 000 48 100 11 900 13 800 15 900 10 200 11 000 13 200 40 600 43 800 51 200 Galvanized Steel Pl...

Page 119: ...ng temperature reaches 30 C High head height Drain pump A standard drain head height of up to 700mm is possible Central Control Optional It is operating individually or totally by central control function Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temperature Indoor fan is delayed for 5 seconds at the starting High Med Low Intermittent operatio...

Page 120: ...n speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low 3 Operation Details Soft Dry Operation The indoor fan speed is automatically set to the low so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to ...

Page 121: ...ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B C B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40 C fan stops For eluminating latent heat loss fan operates at low speed for 10 seconds periodically To be operated Low except initial Hotstart opera...

Page 122: ...nit Hex Exchanger temperature reaches 22 C The operation diagram is as following ON ON Off Off Low Low 1 min Hotstart On Hotstart Off Indoor unit Heat Exchanger temperature Setting fan speed Setting fan speed Thermal Outdoor fan Indoor fan 4way Valve ON 1 min Operation Details Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation ...

Page 123: ...f h i j k l 355 47 450 30 87 750 158 260 64 243 212 243 106 130 52 65 83 19 165 355 47 450 30 87 830 186 298 232 243 232 243 116 160 53 65 83 19 165 477 56 590 30 120 1006 294 380 215 279 241 279 185 168 51 98 83 17 172 Model A B 7 9 12 15 18 24k BH 932 882 28 36 42k BG 1232 1182 48k BR 1282 1230 Unit mm l i h j k A H C D E F B G a b c d K J f e Top view unit mm Front view 600 600 Front Inspection...

Page 124: ...er Filter Thermistor Refrigerant pipe connection port diameter unit mm inch MODEL GAS LIQUID ARNU07GBHA1 Ø12 7 1 2 Ø6 35 1 4 ARNU09GBHA1 Ø12 7 1 2 Ø6 35 1 4 ARNU12GBHA1 Ø12 7 1 2 Ø6 35 1 4 ARNU15GBHA1 Ø12 7 1 2 Ø6 35 1 4 ARNU18GBHA1 Ø12 7 1 2 Ø6 35 1 4 ARNU24GBHA1 Ø15 88 5 8 Ø9 52 3 8 ARNU28GBGA1 Ø15 88 5 8 Ø9 52 3 8 ARNU36GBGA1 Ø15 88 5 8 Ø9 52 3 8 ARNU42GBGA1 Ø15 88 5 8 Ø9 52 3 8 ARNU48GBRA1 Ø15...

Page 125: ... INDOOR CONTROLLER CN MOTOR2 FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING CN PIPE PIPE SENSOR PIPE THERMISTOR CN PIPE O DISCHARGE PIPE SENSOR DISCHARGE PIPE THERMISTOR CN ROOM ROOM SENSOR ROOM THERMISTOR CN R...

Page 126: ...OR OUTPUT MOTOR OUTPUT OF BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING CN PIPE PIPE SENSOR PIPE THERMISTOR CN PIPE O DISCHARGE PIPE SENSOR DISCHARGE PIPE THERMISTOR CN ROOM ROOM SENSOR ROOM THERMISTOR CN REMO REMOTE CONTROLLER REMOTE CONTROL...

Page 127: ...ronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specification 128 2 Functions 130 3 Operation Details 131 4 Dimensions 138 5 Piping Diagrams 139 6 Wiring Diagrams 140 Wall Mountedd Type ...

Page 128: ... mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Color Wall Mounted ARNU07GSE 1 ARNU09GSE 1 ARNU12GSE 1 2 200 2 800 3 600 1 900 2 400 3 100 7 500 9 600 12 300 2 500 3 200 4 000 2 200 2 800 3 400 8 500 10 900 13 600 895x165x282 895x165x282 895x...

Page 129: ...t A Fan Air Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Color Wall Mounted ARNU18GS5 1 ARNU24GS5 ...

Page 130: ...Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Operation indication Lamps LED Signal Receptor Receives the signals from the remote control Signal receiving sound two short beeps or one long beep Operation Indication Lamps On Off Lights up during the system operation Sleep Mode Lights up during Sleep Mode...

Page 131: ...on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again Cooling Mode Operation When the intake air temperature reaches 0 5 C below the ...

Page 132: ... the setting temp the compressor is turned off When below the setting temp the compressor is turned on Thermo ON Temp Setting Temp 2 C Thermo OFF Temp Setting Temp 4 C While in compressor on when above 38 C it operates with or setting airflow speed while in sleep mode with the medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33 C when above 35 C...

Page 133: ...umidification heating mode operations is carried out for 10 sec or longer before Fuzzy operation the mode before Fuzzy operation is operated 1 Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compr...

Page 134: ... the setting temperature is automatically selected according to the intake air temp at that time 20 C Intake Air Temp Intake Air Temp 0 5 C Intake Air Temp 20 C 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically accordi...

Page 135: ...ile in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During the JET COOL function at any ...

Page 136: ...button Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the...

Page 137: ...peration mode with selecting the function The function is to be stopped while it is operating with selecting the function When an air cleaner function is selected during operation off The function will be only operated When inlet grille of air conditioner is opened during plasma operation High Voltage Generator H V B is to be stopped When inlet grille of air conditioner is closed during plasma ope...

Page 138: ...r training and service purposes LGE Internal Use Only 4 Dimensions Dimensions ARNU07GSE 1 ARNU09GSE 1 ARNU12GSE 1 ARNU18GS5 1 ARNU24GS5 1 Installation plate D H W 1090 300 178 52 51 unit mm W mm 895 1090 H mm 282 300 D mm 165 178 Model Dimension SE 7 9 12K S5 18 24K ...

Page 139: ...grams Piping Diagrams Heat Exchanger C F F lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter unit mm inch MODEL GAS LIQUID ARNU07GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU09GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU12GSE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU18GS5 1 Ø12 7 1 2 Ø6 35 1 4 ARNU24GS5 1 Ø15 88 5 8 Ø9 52 3 8 ...

Page 140: ...OR NUMBER LOCATION POINT FUNCTION CN POWER AC POWER SUPPLY AC POWER LINE INPUT FOR INDOOR CONTROLLER CN MOTOR FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC CN COM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN DISP1 DISPLAY DISPLAY OF INDOOR STATUS CN DISP2 DISPLAY DISPLAY OF INDOOR STATUS CN EEV EEV OUTPUT EEV CONTROL OUTPUT CN U D STEP MOTOR STEP MOTOR OUTPUT CN TH1 ROOM PIPE SENSOR ROOM AND PIP...

Page 141: ...tronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 142 2 Funtion 144 3 Operation Details 145 4 Dimensions 148 5 Piping Diagrams 150 6 Wiring Diagrams 151 Convertible Type ...

Page 142: ...or Output x Number W Running Current A Fan Air Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Color Ceiling F...

Page 143: ...t A Fan Air Flow Rate H M L cmm cfm Drive Motor type Temperature Control Sound Absorbing Thermal Insulation Material Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Internal Dia mm Net Weight kg lbs Noise Level Sound Press 1 5m H M L dBA 3 Power Supply Ø V Hz Refrigerant Control Power cable mm2 Transmission cable mm2 Color Ceiling Suspended ARNU18GVJA1 ARNU24GVJA1 5 ...

Page 144: ...rature reaches 25 C High head height Drain pump A standard drain head height of up to 700mm is possible Central Control Optional It is operating individually or totally by central control function Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temperature Indoor fan is delayed for 5 seconds at the starting High Med Low Intermittent operation of fan...

Page 145: ...ing Mode Operation the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C Thermo ON SET TEMPERATURE 0 5 C Thermo OFF More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low 1 The function of main control T...

Page 146: ...ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B C B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40 C fan stops For eluminating latent heat loss fan operates at low speed for 10 seconds periodically To be operated Low except initial Hotstart opera...

Page 147: ...until the indoor unit Hex Exchanger temperature reaches 30 C The operation diagram is as following ON ON Off Off Low Low 1 min Hotstart On Hotstart Off Indoor unit Heat Exchanger temperature Setting fan speed Setting fan speed Thermal Outdoor fan Indoor fan 4way Valve ON 1 min Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation ...

Page 148: ...re than 5Cm More than 20Cm More than 20Cm More than 5Cm More than 20Cm Suspension bolt piping hole Ø45 235 50 100 820 40 Washer Nut Suspension bolts Ceiling Anchor nut Drain piping hole Ø25 Suspension bolts Spring washer Max 12mm Hangen Washer Nut Installation plate Ø70mm Left rear piping Right rear piping Foor 70 120 70 more than 200 Ø70mm Ceiling Installation Floor Installation Air suction grill...

Page 149: ...ngs 41 800 950 220 650 Signal Receptor Drain hose Air Filter Air Discharge Right Side Cover Inlet Grill Left Side Cover More than 70cm More than 30cm More than 70cm Suspension bolt B A Washer Nut Suspension bolts Ceiling Anchor nut Suspension bolts Spring washer Max 12mm Hangen Washer Nut ARNU18GVJA1 ARNU24GVJA1 VJ 855 320 DIM MODEL A B ...

Page 150: ...ing diagrams Heat Exchanger C F F lndoor unit EEV Heating Cooling Filter Filter Thermistor Heat Exchanger Sirocco Fan lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter MODEL GAS LIQUID ARNU09GVEA1 ARNU12GVEA1 Ø12 7 1 2 Ø6 35 1 4 ARNU18GVJA1 ARNU24GVJA1 Ø15 88 5 8 Ø9 52 3 8 unit mm inch VE VJ ...

Page 151: ...N PIPE PIPE SENSOR WHITE PIPE THERMISTOR CN ROOM ROOM SENSOR YELLOW ROOM THERMISTOR CN REMO REMOTE CONTROLLER GREEN REMOTE CONTROL LINE CN FLOAT FLOAT SWITCH INPUT BLUE FLOAT SWITCH SENSING CN EEV EEV OUTPUT WHITE EEV CONTROL OUTPUT CN OPTION OPTION PWB WHITE COMMUNICATION BETWEEN MAIN AND OPTION CN COM COMMUNICATION WHITE COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN POWER AC POWER SUPPLY WHITE AC ...

Page 153: ...ronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 154 2 Funtion 156 3 Operation Details 157 4 Dimensions 160 5 Piping Diagrams 161 6 Wiring Diagrams 162 Floor Standing Type ...

Page 154: ... 900 13 600 Galvanized Galvanized Galvanized Galvanized Galvanized Galvanized Steel Plate Steel Plate Steel Plate Steel Plate Steel Plate Steel Plate 1067x203x635 1067x203x635 1067x203x635 978x190x625 978x190x625 978x190x625 42 2x8 0x25 0 42 2x8 0x25 0 42 2x8 0x25 0 38 5x7 5x24 6 38 5x7 5x24 6 38 5x7 5x24 6 2x12x19 2x12x19 2x12x19 2x12x19 2x12x19 2x12x19 0 16 0 16 0 16 0 16 0 16 0 16 Sirocco Fan S...

Page 155: ...ansmission cable mm2 Floor Standing ARNU18GCFA1 ARNU24GCFA1 ARNU18GCFA1 ARNU24GCFA1 5 600 7 100 5 600 7 100 4 800 6 100 4 800 6 100 19 100 24 200 19 100 24 200 6 300 8 000 6 300 8 000 5 400 6 900 5 400 6 900 21 500 27 300 21 500 27 300 Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate 1345x203x635 1345x203x635 1256x190x625 1256x190x625 52 9x8 0x25 0 52 9x8...

Page 156: ...rature reaches 25 C High head height Drain pump A standard drain head height of up to 700mm is possible Central Control Optional It is operating individually or totally by central control function Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temperature Indoor fan is delayed for 5 seconds at the starting High Med Low Intermittent operation of fan...

Page 157: ... the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C Thermo ON SET TEMPERATURE 0 5 C Thermo OFF More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low 1 The function of main control Operation Details T...

Page 158: ...ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B C B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40 C fan stops For eluminating latent heat loss fan operates at low speed for 10 seconds periodically To be operated Low except initial Hotstart opera...

Page 159: ...until the indoor unit Hex Exchanger temperature reaches 30 C The operation diagram is as following ON ON Off Off Low Low 1 min Hotstart On Hotstart Off Indoor unit Heat Exchanger temperature Setting fan speed Setting fan speed Thermal Outdoor fan Indoor fan 4way Valve ON 1 min Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation ...

Page 160: ...NU07GCEA1 ARNU09GCEA1 ARNU12GCEA1 ARNU18GCFA1 ARNU24GCFA1 ARNU07GCFU1 ARNU09GCFU1 ARNU12GCFU1 ARNU18GCFU1 ARNU24GCFU1 Model A B C Model D E F ARNU07GCEA1 1 067 203 635 ARNU07GCEU1 978 190 639 ARNU09GCEA1 1 067 203 635 ARNU09GCEU1 978 190 639 ARNU12GCEA1 1 067 203 635 ARNU12GCEU1 978 190 639 ARNU18GCFA1 1 345 203 635 ARNU18GCFU1 1 256 190 639 ARNU24GCFA1 1 345 203 635 ARNU24GCFU1 1 256 190 639 With...

Page 161: ...ernal Use Only 5 Piping Diagrams Piping diagrams Heat Exchanger Sirocco Fan lndoor unit EEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter MODEL GAS LIQUID ARNU07GCE 1 ARNU09GCE 1 Ø12 7 1 2 Ø6 35 1 4 ARNU12GCE 1 ARNU18GCF 1 ARNU24GCF 1 Ø15 88 5 8 Ø9 52 3 8 unit mm inch ...

Page 162: ...ED DISCHARGE PIPE THERMISTOR CN PIPE PIPE SENSOR WHITE PIPE THERMISTOR CN ROOM ROOM SENSOR YELLOW ROOM THERMISTOR CN REMO REMOTE CONTROLLER GREEN REMOTE CONTROL LINE CN FLOAT FLOAT SWITCH INPUT BLUE FLOAT SWITCH SENSING CN EEV EEV OUTPUT WHITE EEV CONTROL OUTPUT CN D PUMP DRAIN PUMP OUTPUT WHITE AC OUTPUT FOR DRAIN PUMP CN OPTION OPTION PWB WHITE COMMUNICATION BETWEEN MAIN AND OPTION CN COM COMMUN...

Page 164: ...nics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Specifications 165 2 Function 176 3 Dimensions 179 4 Piping Diagrams 183 5 Wiring Diagrams 192 6 Function 196 7 Test Run 220 ARUV ARUN Series ...

Page 165: ...rant name Control Power Supply Ø V Hz 5 6 8 10 ARUV508T1 ARUV608T1 ARUV808T1S ARUV1008T1 ARUV508T1 ARUV608T1 ARUV808T1S ARUV1008T1 14 000 16 000 22 400 28 000 12 000 13 800 19 300 24 100 47 800 54 600 76 400 95 500 5 5 6 2 6 9 8 8 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scroll Scroll Scroll Scroll LG LG LG LG 55 42 55 42 55 42 55 42 82 86...

Page 166: ... 14 16 18 ARUV1208T1 ARUV1408T1 ARUV1608T1 ARUV1808T1 ARUV1208T1 ARUV1408T1 ARUV808T1 ARUV1008T1 ARUC808T1 ARUC808T1 33 600 39 200 44 800 50 400 28 900 33 700 38 500 43 300 114 700 133 800 152 900 172 000 11 4 13 8 13 6 15 6 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scroll Scroll Scroll Scroll LG LG LG LG 55 42 82 86 55 42 82 86 55 42 82 86...

Page 167: ...1008T1 ARUC1008T1 ARUC1008T1 ARUC1208T1 ARUC808T1 ARUC808T1 56 000 61 600 67 200 72 800 48 200 53 000 57 800 62 600 191 100 210 200 229 300 248 400 17 6 20 2 22 8 22 4 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scroll Scroll Scroll Scroll LG LG LG LG 55 42 82 86 82 86 82 86 55 42 82 86 82 86 82 86 55 42 82 86 82 86 82 86 55 42 82 86 82 86 82...

Page 168: ...1008T1 ARUC1008T1 ARUC1008T1 78 400 84 000 89 600 95 200 67 400 72 200 77 100 81 900 267 500 286 600 305 700 324 800 24 4 26 4 29 31 6 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scroll Scroll Scroll Scroll LG LG LG LG 55 42 82 86 82 86 82 86 x2 55 42 82 86 82 86 82 86 x2 55 42 82 86 82 86 82 86 x2 55 42 82 86 82 86 82 86 x2 3477 2900 2900 29...

Page 169: ... Refigerant Refigerant name Control Power Supply Ø V Hz 36 38 40 ARUV3608T1 ARUV3808T1 ARUV4008T1 ARUV1208T1 ARUV1408T1 ARUV1408T1 ARUC1208T1 ARUC1208T1 ARUC1408T1 ARUC1208T1 ARUC1208T1 ARUC1208T1 100 800 106 400 112 000 86 700 91 500 96 300 343 900 363 100 382 200 34 2 36 6 39 WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Scroll Scroll Scroll LG LG LG 55 42 82 86 82 8...

Page 170: ...s Pipes mm inch Dimensions W H D mm inch Net Weight kg lbs Transmission Cable mm2 Refigerant Refigerant name Control Power Supply Ø V Hz 5 6 8 10 ARUN508T1 ARUN608T1 ARUN808T1 ARUN1008T1 ARUN508T1 ARUN608T1 ARUN808T1 ARUN1008T1 14 000 16 000 22 400 28 000 12 000 13 800 19 300 24 100 47 800 54 600 76 400 95 500 15 800 18 000 25 200 31 500 13 600 15 500 21 700 27 100 53 900 61 400 86 000 107 500 5 5...

Page 171: ...ly Ø V Hz 12 14 16 18 ARUN1208T1 ARUN1408T1 ARUN1608T1 ARUN1808T1 ARUN1208T1 ARUN1408T1 ARUN808T1 ARUN1008T1 ARUH808T1 ARUH808T1 33 600 39 200 44 800 50 400 28 900 33 700 38 500 43 300 114 700 133 800 152 900 172 000 37 800 44 100 50 400 56 700 32 500 37 900 43 300 48 800 129 000 150 500 172 000 193 500 11 4 13 8 13 6 15 6 10 7 12 8 13 2 15 1 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin ...

Page 172: ...8T1 ARUN1208T1 ARUN1008T1 ARUH1008T1 ARUH1008T1 ARUH1208T1 ARUH808T1 ARUH808T1 56 000 61 600 67 200 72 800 48 200 53 000 57 800 62 600 191 100 210 200 229 300 248 400 63 000 69 300 75 600 81 900 54 200 59 600 65 000 70 400 225 000 236 500 258 000 279 500 17 6 20 2 22 8 22 4 17 19 2 21 4 21 7 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scroll ...

Page 173: ...08T1 ARUH1008T1 ARUH1008T1 ARUH1208T1 ARUH808T1 ARUH1008T1 ARUH1008T1 ARUH1008T1 78 400 84 000 89 600 95 200 67 400 72 200 77 100 81 900 267 500 286 600 305 700 324 800 88 200 94 500 100 800 107 100 75 900 81 300 86 700 92 100 301 000 322 500 343 900 365 400 24 4 26 4 29 31 6 23 6 25 5 27 7 29 9 WARM GRAY WARM GRAY WARM GRAY WARM GRAY Corrugated Fin Corrugated Fin Corrugated Fin Corrugated Fin Scr...

Page 174: ...m inch Net Weight kg lbs Transmission Cable mm2 Refigerant Refigerant name Control Power Supply Ø V Hz 36 38 40 ARUN3608T1 ARUN3808T1 ARUN4008T1 ARUN1208T1 ARUN1408T1 ARUN1408T1 ARUH1208T1 ARUH1208T1 ARUH1408T1 ARUH1208T1 ARUH1208T1 ARUH1208T1 100 800 106 400 112 000 86 700 91 500 96 300 343 900 363 100 382 200 113 400 119 700 126 000 97 500 102 900 108 400 386 900 408 400 429 900 34 2 36 6 39 32 ...

Page 175: ...heat exchanger in cold status Prevent overheat of the compressor by supplying liquid refrigerant after opening the valve when discharge temperature of the compressor rises Stabilize the system by high pressure gas to the low pressure part after opening when bypass and low pressure of refrigerant rapidly reduces to less than the valve valve Cut off the outdoor heat exchanger with the evaporator or ...

Page 176: ...essor discharge pipe Hot Gas Bypass valve HGV High Pressure Sensor HPS Low Pressure Sensor LPS Outdoor air thermistor TAIR Discharge Check Valve DCHK 2 1 8HP 10HP 12HP 14HP Parts Layout Drawing sensor etc Functions 176 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 Functions ...

Page 177: ...y Compressor CON Square Junction Valve 4WAY Liquid Injection Valve LINV Liquid Injection Valve LCON Inverter High Pressure Switch HSINV Check Solenoid Valve CSOL Inverter Compressor INV Outdoor EEV OEEV Liquid Tube Temperature Sensor TLIQ Excessive Cold Outlet Temperature Sensor TSOUT Excessive Cold Inlet Temperature Sensor TSIN 8HP 10HP 12HP 14HP Parts Layout Drawing sensor etc ...

Page 178: ... LGE Internal Use Only Inverter Motor Shroud Outdoor Fan Motor Mount Accumula tor Service Valve Mount Liquid Tube Service Valve Gas Tube Service Valve System Service Valve Oil Separator Excessive Cold Heat Exchanger Base Pan Strainer 2 2 8HP 10HP 12HP 14HP Parts Layout Drawing Tool Part Functions ...

Page 179: ...Internal Use Only 3 Dimensions 3 1 1 Outdoor Unit Half Size 5 6 8HP Dimensions W L7 D L4 L3 L2 D H L5 L1 L6 W mm inch 806 31 5 H mm inch 1607 63 3 D mm inch 730 28 7 L1 mm inch 1427 56 1 L2 mm inch 692 27 2 L3 mm inch 670 26 3 L4 mm inch 500 19 7 L5 mm inch 704 27 7 L6 mm inch 99 3 9 L7 mm inch 82 3 2 ...

Page 180: ...oses LGE Internal Use Only 3 2 1 Outdoor Unit 8 10 12 14HP Dimensions L4 L3 L2 D H L5 L1 L6 W L7 D W mm inch 1280 50 4 H mm inch 1607 63 3 D mm inch 730 28 7 L1 mm inch 1427 56 1 L2 mm inch 692 27 2 L3 mm inch 670 26 3 L4 mm inch 900 35 4 L5 mm inch 704 27 7 L6 mm inch 99 3 9 L7 mm inch 82 3 2 ...

Page 181: ...llowing figure 3 When installing the units the most appropriate pattern should be selected from those shown In order to obtain the best fit in the space available always bear in mind the need to leave enough room for a person to pass between units and wall and for the air to circulate freely Your layout should be taken account the possibility of short circuits 4 The Units should be installed to le...

Page 182: ...eights are exceeded then h1 2 and h2 2 should be added to the front and suction side ser vice spaces respectively as shown in the following figure 3 When installing the units the most appropriate pattern should be selected from those shown In order to obtain the best fit in the space available always bear in mind the need to leave enough room for a person to pass between units and wall and for the...

Page 183: ...cumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN Gas pipe Liquid pipe Accum O S Liquid Injection INV Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer S S S 4 1 Refrigerant Flow...

Page 184: ...Oil Separator Accum Accumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN Gas pipe Liquid pipe Accum Liquid Injection INV O S Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer S S ...

Page 185: ... Separator Accum Accumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN Gas pipe Liquid pipe O S Liquid Injection INV Accum S S Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer S P...

Page 186: ...l Separator Accum Accumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection INV O S CON S S S Accum Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service ...

Page 187: ...l Separator Accum Accumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection O S INV CON S S S Accum Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service ...

Page 188: ... S Oil Separator Accum Accumulator High temperature High pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection O S Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer ...

Page 189: ...h pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection O S Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer High Low Pressure Common Sub Outdoor Unit Liquid Sub Ou...

Page 190: ...h pressure liquid High temperature High pressure gas Low temperature Low pressure gas Heat Exchanger Fan lndoor unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection O S High Low Pressure Common Sub Outdoor Unit Liquid Sub Outdoor High Low Pressure Common Sub Outdoor Unit Gas Pressure sensor Pressure switch Check valve E...

Page 191: ...unit EEV Filter Filter Heat Exchanger Fan lndoor unit EEV Filter Filter H G IM FAN IM FAN Gas pipe Liquid pipe O S Liquid Injection O S High Low Pressure Common Sub Outdoor Unit Liquid Sub Outdoor High Low Pressure Common Sub Outdoor Unit Gas S S S Accum Pressure sensor Pressure switch Check valve EEV Thermistor Solenoid valve Service valve Strainer S INV Inverter compressor CON Constant speed com...

Page 192: ...F INDOOR UNIT OUT FILTER IN FUSE 600V 30A R S T N FUSE 250V 15A 4WV SV SV SV CN04 4WAY CN05 LIQ C CN06 LIQ I CN07 HEATER C CN08 HEATER I CN10 HOT GAS CN11 OILPASS C CN12 OILPASS I CN14 MAGNET C JIG1 JIG2 52C1 EOCR CT CT Ta Tb Tc L2 L1 U SINGLE SPEED COMP V W A B CN02 AC TRANS IN CN03 AC TRANS OUT CN23 CN22 SW02M SW01M SW03M MAIN BOARD SC OUT OUT_AIR S_PIPE I D_PIPE C D_PIPE I HEX_PIPE C HEX_PIPE I...

Page 194: ... FAN CN16 EEV OUT LINEAR EXPANSION VALVE MAIN CN17 EEV SC LINEAR EXPANSION VALVE SUBCOOLING CIRCUIT CN18 TO JIG TRANSMISSION WITH JIG CN19 CEN CONTROL WRITE TRANSMISSION WITH CENTRAL CONTROLLER CN20 TO FAN BOARD TRANSMISSION WITH FAN BOARD CN21 TO INVERTER BOARD TRANSMISSION WITH INVERTER BOARD CN22 TO INDOOR UNIT TRANSMISSION WITH INDOOR UNIT CN23 TO SUB OUTDOOR TRANSMISSION WITH SUB OUTDOOR UNIT...

Page 195: ...IGH PRESSURE CN17 PHASE 3 PHASE DETECT CN18 FAN R FAN MOTOR RIGHT CN19 FAN L FAN MOTOR LEFT CN20 EEV OUT LINEAR EXPANSION VALVE MAIN CN21 EEV SC LINEAR EXPANSION VALVE SUBCOOLING CIRCUIT CN22 TO JIG TRANSMISSION WITH JIG CN23 CEN_CONTROL WRITE NOT USE CN24 TO MAIN OUTDOOR TRANSMISSION WITH MAIN OUTDOOR UNIT OUT AIR OUTDOOR AIR THERMISTOR CN26 S_PIPE A CONSTANT A COMP SUCTION PIPE THERMISTOR D_PIPE...

Page 196: ... 2 Special control 200 2 1 Oil return control 200 2 2 Defrost control 201 2 3 Oil equalizing control 204 2 4 Stopping operation 207 3 Protection control 209 3 1 Pressure protection control 209 3 2 Discharge temperature control 211 3 3 Inverter protection control 211 3 4 Liquid back control 212 3 5 Phase detection 212 3 6 Pressure switch 213 4 Other control 213 4 1 Initial setup 214 4 2 Instant ind...

Page 197: ...ip switch Te and Tc are decided simultaneously 1 Basic control Compressor Fan Main EEV 4way valve Subcooling EEV Fuzzy control Fuzzy control Full open Off Fuzzy control Normal minimum pulse Avoiding control of high discharge temperature Fuzzy control Fuzzy control Fuzzy control On Cooling operation Heating operation Actuator stop stop After 15min min pulse After 15min Off After 15min min pulse Sto...

Page 198: ... back control discharge temperature control etc 3 Subcooling EEV control about 15 C Subcooling EEV works with fuzzy rules to keep the degree of Subcool at the outlet of subcooler during cooling mode The degree of Subcool Tcondensation Tliquid Tliquid temperature at outlet of subcooler C Tcondensation condensation temperature equivalent to high pressure C 4 Avoiding excessive high discharge tempera...

Page 199: ...ep 2 Fan Mode Fan Step Left fan Right fan 0 Stop Stop 1 Low Stop 2 High Stop 3 Low Low 4 High Low 5 High High Fan frequency 5 Hz 5Hz f 10Hz 10 Hz f 20Hz 20 Hz f 30Hz 30 Hz f 40Hz f 40Hz Sub unit Main unit 1 Fan Mode Half size 5Hz f 20 Hz f 20Hz 5Hz Fan Step Fan Fan frequency 0 Stop 1 Low 2 High Function The main unit has two inverter motors and both operate together The sub unit has two tap motors...

Page 200: ...Subcooling EEV 45 Hz 0Hz Full open Off min Starting Component Sub unit compressor All off Hot gas bypass valve Off 60 Hz High pressure control Full open Off min Running On Suction pipe temp control 40 Hz High pressure control Full open Off min Ending Off Off Fan Keep state Starting Indoor unit Thermo on unit EEV Oil return pulse Keep state Running Oil return operation pulse Keep state Ending Retur...

Page 201: ...ressor Fan Main EEV 4way valve Subcooling EEV Min frequency 0Hz Full open On off min Starting Component Sub unit compressor All off Hot gas bypass valve On 60 Hz High pressure control Full open Off min Running On On Min Hz High pressure control Base pulse On min Ending Off On Fan Off Starting Indoor unit Thermo on unit EEV Oil return pulse Off Running Oil return operation pulse Off Ending Return t...

Page 202: ...pa Pressure range Compressor combination Refer to combination table Normal Pressure range Compressor combination Refer to combination table Normal Low pressure 242 kpa Low pressure 229 kpa Function Comp combination during defrost control Pressure limit Normal Before 70sec 1 unit 2 unit 3 unit Before 70sec after 70sec after 70sec 1unit half size minimum Hz 50 Hz 45 Hz 45 Hz constant comp 1 60 Hz 80...

Page 203: ...emp 11 C 2 2 3 UNITS Model 1 Partly defrost When there is one or more bellowing cases of hex pipe temp as each unit a air temp 0 C hex pipe temp 10 C b air temp 0 C hex pipe temp air temp 11 C 2 All defrost When all hex pipe temp is satisfied bellowing cases a air temp 0 C hex pipe temp 7 C b 5 C air temp 0 C hex pipe temp air temp _8 C c air temp 5 C hex pipe temp air temp 9 C Comp combination du...

Page 204: ...return pulse Off Running Oil return operation pulse Off Ending Return to base pulse Thermo off unit EEV Heating close pulse Oil return operation pulse Heating close pulse Inv Compressor Fan Main EEV 4way valve Subcooling EEV Equalizing control High pressure control Full open Off Subcooling control Starting Component Sub unit compressor Equalizing control Hot gas bypass valve Off Equalizing control...

Page 205: ...ooling EEV Equalizing control Low pressure control Depending on the indoor pipe temp condition On min pulse Starting Component Sub unit compressor Equalizing control Hot gas bypass valve Off Equalizing control Low pressure control On min pulse Running Equalizing control Off Equalizing control Low pressure control On min pulse Ending Equalizing control Off Fan Normal Starting Indoor unit Thermo on ...

Page 206: ...operation of compressors oil by decrease of one stage The compressor which stops is decided by the stage table 2 The operating compressor runs for 2 min 3 The operating compressor stops after 2 min 4 The other compressor runs for 2 min 5 After 2 min two compressors run by increase of one stage Equalizing control about inverter compressor 1 Inverter compressor keeps Min frequency for 2 min 2 Freque...

Page 207: ...an Main EEV 4way valve Subcooling EEV 0Hz 0Hz Full open On Full close Full close Operation Component After 15 min from stop min After 15 min from stop off Note Sub unit compressor Off Hot gas bypass On After 15 min from stop Off Inv Compressor Fan Main EEV 4way valve Subcooling EEV 0Hz 0Hz Full open Off Full close Full close Operation Component After 15 min from stop min Off Note Sub unit compress...

Page 208: ...nits when only main unit operates Depends on main unit fan frequency Full open cooling SH control heating Same state to main unit Subcooling control cooling min pulse heating Operation Off Normally Off Fan Main EEV way 4valve Subcooling EEV Component Sub unit compressor Hot gas bypass If liquid injection on max pulse is 350 else 300 pulse Note Function ...

Page 209: ...ure control Low pressure control 3 Protection control Stop Stop Pd 3676 kPa Off Normal control Pd 3284 kPa Normal control Frequency holding Pd 3284 kPa 10Hz 2sec 5Hz 2sec Pd 3546 kPa Hot gas Fan Compressor Pressure Range Frequency holding Normal control Ps 242 kPa Off Normal control Ps 399 kPa On 10Hz 2sec 5 Hz 2sec Ps 229 kPa before 1min Stop Stop Ps 229 kPa after 1min Hot gas Fan Compressor Pres...

Page 210: ...e control Frequency holding Normal control On Stop Stop Pd 3676 kPa On 5Hz 2sec 5Hz 2sec Pd 3546 kPa Pd 3284 kPa off Normal control Pd Target press Hot gas Fan Compressor Pressure Range Normal control Frequency holding Ps 242 kPa Normal control Ps 268kPa Off Ps 307 kPa 10Hz 2sec 5Hz 2sec Ps 229 kPa before 1min On Stop Stop Ps 229 kPa after 1min Hot gas Fan Compressor Pressure Range Function ...

Page 211: ... down const Comp off Liquid injection on No frequency up System stop 105 C Tdis 112 C Tdis 115 C Temperature range Compressor On Liquid injection 98 C Tdis 103 C Keep state Pressure control Tdis 98 C Off Max limit 350 pulse Subcooling EEV If liquid is on Max limit 350 pulse Max limit 150 pulse Pressure control Tdis 95 C Off 10 pulse open 10sec System stop Current 20A item control Inv compressor 5H...

Page 212: ...mode and 4 min on cooling mode from the compressor running Tdis Tc 12 C Discharge temperature Indoor unit s EEV Normal SH control Tdis Tc 16 C SH increasing control Tdis Tc 12 C Discharge temperature Indoor unit s EEV Normal SH control Tdis Tc 16 C SH increasing control SH increasing control Tdis Tc 17 C Discharge temperature Outdoor unit s EEV Normal SH control Tdis Tc 18 C Normal operation Tdis ...

Page 213: ... has small electric current from 220V AC Never touch the connecting terminal with hand nor short two wires directly 3 5 Phase detection Main unit Inverter PCB has phase fault detection circuit If a phase is missed or phases are reversed error LED red flickers once per second when power is on Sub unit Sub PCB has phase fault detection circuit If a phase is missed or phases are reversed phase fault ...

Page 214: ...e display Main unit Factory setting value is displayed in 7 segment on PCB for 24sec All dip switches must be set properly before step 1 4 Other control Power is on Main model code is displayed 3sec sub1 model code is displayed 3sec sub2 model code is displayed 3sec Total capacity including sub units is displayed 2sec main sub1 2 Heat pump Display 2 is default value Cooling only no display normal ...

Page 215: ...nternal Use Only Function Sub unit Factory setting value is displayed by LED s for 3sec All dip switches must be set as sub 1 2 refer to DIP switch setting LED display disappears after 10 sec LED s led2 led1 8HP 10 HP 12 HP 14 HP led4 led3 C O H P led6 led5 Sub1 Sub2 led8 led7 normal Comp 2 on Comp 1 on ...

Page 216: ...e with the inverter compressor PCB LED02k represents the communication state with the inverter fan PCB Sub unit After 40 sec LED1 blinks once per second If electric phase is reversed or missed LED6 is on Other LED except LED1 must be off in initial setup steps 4 Step 4 Auto addressing of indoor units Auto addressing begins when address red button in Main PCB is pressed for 6 sec During auto addres...

Page 217: ... cooling or heating by dip switch setting In instant indoor unit checking mode the indoor unit cannot be controlled by the wired remote controller and there is no display in indoor unit s remote controller If the indoor unit is turned on off by the remote controller it has no effect on the unit Red button push 3 times in 3 sec Instant indoor unit checking mode starts Red button pushed Next indoor ...

Page 218: ...nits In case of inverter failure backup operation is possible when 110kBtu hr or more indoor units are ON On the case of single outdoor unit the required indoor operating capacity is 70kBtu hr Under the limit capacity in inverter backup mode outdoor unit will not be run even indoor units are still running main sub1 sub2 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 ...

Page 220: ...sulation resistance Check if high low pressure common pipe liquid pipe and gas pipe valves are fully opened NOTE Be sure to tighten caps Check if there are any problems in automatic addressing or not Check and confirm that there are no error messages in the display of indoor units or remote controls and LED in outdoor units 1 Checks Before Test Run CAUTION when cutting main power of the Multi V Al...

Page 221: ...ion failure Phase sequence fault Motor failure Bad ventilation around outdoor heat exchanger Bad connector contact Coil failure EEV clogged EEV clogged Check resistance between terminals and chassis Check resistance between terminals and chassis Check wiring R S T sequence or lnter change last two phase connection Check the outdoor fan operation after being turned the outdoor units off for some ti...

Page 222: ...ght reserved Only for training and service purposes LGE Internal Use Only 3 1 Location of setting Switch Main PCB 7 Segments Shows setting status SW03M DIP switch Sub Unit PCB SW03M DIP switch LED Shows setting status 3 DIP Switch Setting Test Run ...

Page 223: ...el code Sub2 model code total capacity 2 25 41 1 255 Main model code 1 255 Sub1 model code 1 255 Sub2 model code 5 40 HP number sum of main capacity and sub capacity 2 heat pump No display cooling only 25 normal 41 R410A model 22 R22 model Checking the setting of the sub unit It is displayed by 8 LED of the sub unit A set of two LED s represents 0 1 2 and 3 in binary LED1 LED3 LED5 and LED7 are le...

Page 224: ...ting before applying the power 7 8 6 5 4 2 1 3 ON OFF 2 Save mode Setting before applying the power When the installation condition is normal almost all cases use standard mode 7 8 6 5 4 2 1 3 ON OFF 1 Standard mode default data address 7 8 6 5 4 2 1 3 ON OFF 4 Instant indoor unit checking Cooling mode With dip switch setting as left side push address red button 3 times in 3 sec With data button s...

Page 225: ...unit of the constant speed comp 1 failure 7 8 6 5 4 2 1 3 ON OFF 10 Backup operation unit backup Setting before applying the power Set at the disabled unit All compressors are broken In case of all compressors of 1 unit failure backup operation is possible when 110k Series or more indoor units capacity is ON 1unit 70k or more 7 8 6 5 4 2 1 3 ON OFF 11 Backup operation Inverter comprssor backup Set...

Page 226: ...unit 2nd sub unit At the 3rd sub unit set dip switch as the left side Setting before applying the power 7 8 6 5 4 2 1 3 ON OFF 3 The sequence of sub unit 3rd sub unit 7 8 6 5 4 2 1 3 ON OFF 4 Backup operation constant speed comp 1 backup Setting before applying the power Set at the unit of the constant speed comp 1 failure 7 8 6 5 4 2 1 3 ON OFF 5 Backup operation constant speed comp 2 backup Sett...

Page 227: ...ectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 Replacement procedure for Compressor 228 1 1 Replacement procedure 228 Replacement procedure for Compressor ARUN508T1 To ARUN4008T1 ...

Page 228: ...ghtening the fixing bolts of compressor 7 Remove the rubber caps put on the suction and discharge pipe of the new compressor to release the sealing nitrogen gas Take note that oil may spout due to the pipe inside pressure if the plug put on the equalizing seat is removed before removing of rubber cap 8 Fasten equalizing pipe with nut 14 18N m 9 Braze the suction and discharge pipe with brazing tor...

Page 230: ...onics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 The phenomena from main component failure 231 2 Checking Method for key components 232 3 Selt diagnosis function 240 Trouble Shooting guide ...

Page 231: ...per ature error Motor insulation broken Motor insulation failure Motor failure bad ventilation around outdoor heat exchanger Bad connector contact Coil failure EEV clogged EEV clogged Check resistance between terminals and chassis Check resistance between terminals and chassis Check the outdoor fan operation after being turned the outdoor units off for some time Remove obstacles around the outdoor...

Page 232: ... actually or where there is danger to determine that failure of the inverter occurred 2 You can use rectification voltmeter if using commercial frequency tester when measuring output values of the inverter when measuring absolute values Accurate measuring values cannot be obtained with a gen eral movable tester For analog and digital mode 1 2 Is how long power on during operation Does failure appe...

Page 233: ...onnection of polarity 5 Check short circuit and grounding Measure winding resistance of the motor coils Main outdoor unit INV 19 0 7 Ω 75 C Sub outdoor unit Main 22 8 7 Ω 75 C R1 34 8 7 Ω 75 C R2 3 7 7 Ω 75 C Replace the fuse if there is defect Fuse 800V 30A Replace the circuit board in following procedures if problems occur again when powering on and if there are no matters equivalent to items as...

Page 234: ...r continuously in the ON state motor will not operate smoothly and start vibrating EEV valve operation ø1 ON OFF OFF OFF OFF OFF ON ON ø2 ON ON ON OFF OFF OFF OFF OFF ø3 OFF OFF ON ON ON OFF OFF OFF ø4 OFF OFF OFF OFF ON ON ON OFF Output ø No Output state 1 2 3 4 5 6 7 8 Valve open Angle close pulse open Full open 1350 pulses At power ON open angle signal of 1400 pulses out put and valve position ...

Page 235: ... Internal Use Only Checking Method for Key Components EEV Coil and body Outdoor unit Remove and assemble the coil Lead wire Coil part Body A part 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 236: ...tion 1 Check the resistance between coil terminal red white red yellow red orange red blue 2 If the estimated resistance value is in 52 3Ω then the EEV is normal Replace EEV Outdoor unit 1 Check the resistance between coil terminal brown white brown yellow brown orange brown blue 2 If the estimated resistance value is in 150 10Ω then the EEV is normal Replace EEV Indoor unit 1 Operate indoor unit ...

Page 237: ...uld be large enough to Mega Ohm unit 3 Set the multi meter to diode mode and estimate between each pair of terminal U V W U V W the estimated value should be stable and be in between 0 to 1 ex 0 35 0 46 etc If one of the above articles is not satisfied bridge diode must be inferior and to be replaced U V W Internal circuit diagram In case that the control box is opened and before checking electric...

Page 238: ... Ohm unit 3 Set the multi meter to resistance mode Check and estimate the resistance between each pair of terminal 3 U 7 V 11 W 16 N 17 N 18 N the estimated value should be large enough to Mega Ohm unit the check point is inside of the screw hole U V W N if check points are plate face of the terminal then estimated values are gate resistance 4 Set the multi meter to diode mode and estimate between...

Page 239: ... increase continuously without short value is 0 then the resistor is normal 3 Set the multi meter to resistance mode confirm that the resistance value of the resistor is around 270 kOhm Check and replace inferior components Guide of check electrolytic capacitor and resistor for voltage distribution In case that the control box is opened and before checking electrical parts it should be checked tha...

Page 240: ...temperature of main outdoor unit INV compressor Discharge temperature of main outdoor unit constant speed com pressor High pressure of main outdoor unit Low pressure of main outdoor unit Air temperature sensor of indoor unit is open or short Inlet pipe temperature sensor of indoor unit is open or short Failing to receive wired remote controller signal at indoor unit PCB Malfunction of drain pump F...

Page 241: ...pressor of main outdoor unit is open or short Temperature sensor of rear side heat exchanger is open or short Current sensor of inverter compressor Discharge temperature sensor of inverter compressor Low pressure sensor of main outdoor unit High pressure sensor of main outdoor unit Air temperature sensor of main out door unit Temperature sensor of front side heat exchanger Suction temperature sens...

Page 242: ...nstant speed com pressor 1 of sub1 outdoor unit is open or short Discharge temperature sensor of the constant speed com pressor 2 of sub1 outdoor unit is open or short Temperature sensor of front side heat exchanger of sub1 unit is open or short Discharge temperature of constant speed compressor 1 of sub1 outdoor unit Discharge temperature of constant speed compressor 2 of sub1 outdoor unit Discha...

Page 243: ...4 2 1 4 3 1 4 4 1 4 5 1 4 6 1 4 7 Temperature sensor of rear side heat exchanger of sub1 unit is open or short Liquid pipe temperature sensor of sub1 outdoor unit is open or short Subcooling inlet temperature sensor of sub1 outdoor unit is open or short Subcooling outlet temperature sensor of sub1 outdoor unit is open or short High pressure sensor of sub2 outdoor unit is open or short Low pressure...

Page 244: ...smission error HR unit 6 out door unit Liquid pipe sensor of HR unit 7 Voltage detection circuit of sub1 outdoor unit is out of order Input voltage of sub2 outdoor unit is more than 487V or less than 270V Voltage detection circuit of sub2 outdoor unit is out of order Pressure unbalance between outdoor units Comp locking Check Valve leakage comp dielectric break down Comp locking Check Valve leakag...

Page 245: ...Title Cause of Error 2 2 6 2 2 7 2 2 8 2 2 9 2 3 0 2 3 1 Inlet sensor of subcooler of HR unit 7 is open or short Outlet sensor of subcooler of HR unit 7 is open or short Failling to receive HR unit 7 signal at outdoor unit Liquid pipe sensor of HR unit 8 is open or short Inlet sensor of subcooler of HR unit 8 is open or short Outlet sensor of subcooler of HR unit 8 is open or short Inlet sensor of...

Page 246: ... more than 100kΩ open or less than 100Ω short Error occurs Refer Resistance value maybe change according to temperature of temp sensor It shows according to criteria of current temperature 5 margin Normal Air temp sensor 10 C 20 7kΩ 25 C 10kΩ 50 C 3 4kΩ Pipe temp sensor 10 C 10kΩ 25 C 5kΩ 50 C 1 8kΩ Error diagnosis and countermeasure flow chart Is sensor properly connected to PCB Is the resistance...

Page 247: ...hould be turned on before Auto Addressing 03 No transmission between cabled remote controller indoor unit Error No Error Type Error Point Main Reasons The remote controller did not receive the sig nal from indoor unit during specific time 1 Remote controller fault 2 Indoor unit PCB fault 3 Connector fault Wrong connection 4 transmission cable problem Error diagnosis and countermeasure flow chart C...

Page 248: ... filled half with condensate water half level of float switch Is drain pump working Sound drain noise contact etc Replace float switch Replace Indoor PCB or reconnect the connector Yes Yes No No Is Float switch short On measuring its resistance No Yes Drain pump blocked by foreign particles Yes No In indoor unit PCB Does the terminal voltage for drain pump has 220V output Replace indoor unit PCB R...

Page 249: ...eserved Only for training and service purposes LGE Internal Use Only Indoor PCB drain pump connector Check input of 220V Marked as CN DPUMP float A Point to check rotating Float switch Housing CN FLOAT Float switch connector Standard of drain pipe head height slope MAX 450 ...

Page 250: ...oblem Yes No Yes No Outdoor PCB fault Replace after checking Re connect transmission cable No Yes Indoor PCB fault Replace after checking If the DC voltage between transmission terminal A B of outdoor unit is fluctuate within 9V 9V then transmission from indoor unit is normal Is total number of indoor units connected displayed after auto addressing No END If the DC voltage between transmission ter...

Page 251: ...utdoor main PCB dip switch no 5 Cooling or no 6 heating is in On different mode operation error may be occurred because the operation mode is fixed by dip switch setting Dissolution method CH07 with remote controller 1 Error removal method Turn off remote controller by pressing the On Off button on the cabled remote controller The error code will be removed automatically after a few seconds With c...

Page 252: ...tor connection proper Yes No Connect properly Is fan motor normal Replace indoor unit fan motor It is normal when check hall sensor of indoor fan motor as shown below Yes No k Replace indoor unit PCB Checking connection state of fan motor connector 1 4 5 6 7 1 5 6 7 4 4 4 4 Each termainl with the tester Tester TH chassis hundreds kΩ hundreds kΩ hundreds kΩ hundreds kΩ TD chassis Normal resistance ...

Page 253: ...rror Type Error Point Main Reasons Indoor unit doesn t get sig nal from ODU for 3 minutes continuously 1 Indoor 485 transmission PCB fault 2 After PCB replacing auto addressing was not done Error diagnosis and countermeasure flow chart Yes No After Auto addressing error code disappears Replace indoor unit 485 transmission PCB No After ODU main PCB reset error code disappears END Yes ...

Page 254: ...the resistance between each phase and insulation resistance of Inverter compressor normal refer electric component part No Replace inverter compressor Is inverter PCB of inverter compressor normal refer electric component part Yes No Is IPM normal refer electric component part Yes No Is capacitor normal refer electric component part Yes Replace IPM Replace inverter compressor PCB Replace capacitor...

Page 255: ...current measured at the R phase line passing through CT during operation is above 18A after reset Yes Replace inverter compressor PCB Check over charging of refrigerant or whether the filter is blocked of indoor unit heating outdoor cooling or not Is input voltage of power supply normal Over 360V refer electric component part Is fuse normal refer electric component part Yes Is noise filter normal ...

Page 256: ...ective sensing circuit of the inverter PCB Error diagnosis and countermeasure flow chart Replace Capacitor Is noise filter and fuse normal refer electric component part No Replace Noise Filter or Fuse Is capacitor normal refer electric component part Yes No Yes Is the voltage of 3 phase diode more than maximum 270V No Check whether all the connections and terminals is normal and reconnect Yes Afte...

Page 257: ...ror Point Main Reasons Compressor off due to the high pressure switch in outdoor unit Excessive rise of discharge pressure in outdoor com pressor 24 Main 109 Sub1 140 Sub2 154 Sub3 Is high pressure switch connector connected to PCB No Connect securely Is high pressure switch connector short during off time Yes No Is this error appeared again after reset Yes No Is SVC valve open Yes Re check moment...

Page 258: ...ectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Connector location of high pressure switch at PCB Inverter compressor PCB SUB outdoor unit PCB Checking short or not at connector of high pressure switch ...

Page 259: ... abnormal T N 2 Outdoor unit main PCB defect Error No Error Type Error Point Main Reasons The power supply input voltage tolerance is more or less than allowable standard Low over voltage of main PCB input 25 Main 147 Sub1 149 Sub2 171 Sub3 Is input voltage of main PCB T N 190V 250V No Check input power from building is supplied correctly or not Yes Replace main PCB Check voltage at outdoor T Bloc...

Page 260: ...er com pressor at main outdoor unit Over increase discharge temperature of constant compressor at main con stant outdoor and sub con stant outdoor unit 32 Main 33 Main 100 101 Sub1 102 103 Sub2 152 153 Sub3 No Yes Is the resistance of discharge temperature sensor normal Replace discharge temperature sensor Is the amount of refrigerant normal refer refrigerant part Weld reconnect the cracked portio...

Page 261: ...ive compres sor off due to over increase of high pres sure by high pressure sensor Over increase of dis charge pressure of compressor 34 Main 143 Sub1 145 Sub2 169 Sub3 Is service valve opened No Open service valve Are transmission cable pipe connection normal Yes No Is refrigerant amount normal refer refrigerant part Yes No Is fan normal Indoor fan during heating Outdoor fan during cooling Yes No...

Page 262: ...ervice valve opened Open service valve Are transmission cable piping normal Yes No Is amount of refrigerant normal refer refrigerant part Yes No Is fan normal in heating outdoor fan in cooling indoor fan Yes Adjust the amount of refrigerant Additive charge check transmission piping correction Check and replace related parts error 105 108 reference Is strainer Ok No Replace the strainer No Replace ...

Page 263: ...or Point Main Reasons While inverter compressor operation R phase current drops below 2A Error diagnosis and countermeasure flow chart Is the fuse normal refer electric component part No Replace the fuse Yes Is noise filter normal refer electric component part No Replace noise filter Yes Replace Inverter PCB After reset and restart the system is CT value R phase current actually less than 2A Yes N...

Page 264: ...b2 constant compressor 1 134 Sub2 constant compressor 2 162 Sub3 constant compressor 1 163 Sub3 constant compressor 2 Error diagnosis and countermeasure flow chart Check the resistance inverter compressor discharge temperature sensor Sensor connection to PCB is normal Is the resistance of sensor normal Insert sensor connector to PCB properly Replace sensor Replace corresponding outdoor PCB Yes No ...

Page 265: ...ssure connector Open Short 3 Defect of outdoor PCB Error No Error Type Error Point Main Reasons Abnormal value of sensor Open Short Abnormal value of sensor Open Short Sensor error of low pressure Sensor error of high pressure 42 Main 117 Sub1 129 Sub2 158 Sub3 43 Main 116 Sub1 128 Sub2 157 Sub3 Pressure sensor connection on main PCB Is sensor connected to PCB correctly Connect sensor to PCB corre...

Page 266: ...c tion temperature sensor error 44 Main 118 Sub1 130 Sub2 159 Sub3 46 Main 120 Sub1 132 Sub2 161 Sub3 45 Main H E A 48 Main H E B 123 Sub1 H E A 124 Sub1 H E B 135 Sub2 H E A 136 Sub2 H E B 164 Sub3 H E A 165 Sub3 H E B Is sensor connected to PCB correctly Is sensor value correct Connect sensor to PCB correctly Replace sensor Replace corresponding outdoor unit PCB Yes No No Yes If value is 100kΩ o...

Page 267: ... less than 130 of outdoor unit capacity at LGMV No Yes Is SUB DIP switch 5 SUB1 6 SUB2 ON No Adjust corresponding DIP switch Yes Is power of SUB PCB On Check LED blinking Yes No Are quantity and capacity of indoor units installed same as the data of LGMV Yes Adjust the capacity of indoor and outdoor unit No Check transmission cables between indoor and outdoor units Is main power really supplied Te...

Page 268: ...ion error between Inverter PCB Main PCB 52 Error diagnosis and countermeasure flow chart Transmission connector LED in MAIN PCB Transmission connector LED in inverter compressor PCB Is transmission LED Yellow of inverter compressor PCB on Yes No Is noise filter or fuse normal Replace noise filter or fuse No Replace inverter compressor PCB Is transmission cable connected correctly Yes No Re connect...

Page 269: ...units installed is not same as LGMV data and if transmission of the indoor unit displayed at LGMV is done well then the indoor unit suspected to have some problem and is not appear at LGMV may have following problems wrong connection of transmission cable or power cable fault of power PCB transmission cable duplication of indoor unit number If transmission is not doing well wholly then the Auto Ad...

Page 270: ...component part No Replace Fuse Is CH 54 occurred again after reset MAIN circuit breaker No End Check the diode of inverter fan PCB and in case of fault replace inverter fan PCB refer electric component part Is noise filter normal refer electric component part No Replace NOISE FILTER Yes Is connection and phase order of power cables to main sub outdoor unit correct No Connect correctly Is connectio...

Page 271: ...ver heat 62 Error diagnosis and countermeasure flow chart Is value of sensor resistance normal No Does cooling fan rotate while compressor operation No Yes Replace cooling fan Is resistance value of cooling fan coil correct refer electric component part No Replace main PCB Replace sensor Yes Replace inverter fan PCB Heat sink cooling fan Position of cooling fan drive connector in main PCB Check DC...

Page 272: ... error of inverter control PCB 65 Error diagnosis and countermeasure flow chart If value is 100KΩ open or 100Ω short error occurs NB Resistance value of temperature sensor change according to temperature It is normal if value shown as below 5 error Heat sink sensor 5 tolerance 10 C 20 0KΩ 25 C 10 0KΩ 50 C 3 5KΩ 85 C 1 0KΩ Temperature sensor location of Heat sink Is sensor connected to PCB correctl...

Page 273: ... former Error No Error Type Error Point Main Reasons Transmission error of outdoor unit each other 104 Main outdoor unit can t receive signal from Sub 1 111 142 156 each Sub outdoor unit can t receive signal from Main outdoor unit Transmission error of out door each other 104 Main 111 Sub1 142 Sub2 156 Sub3 Error diagnosis and countermeasure flow chart Does transmission LED Red of corresponding Su...

Page 274: ...ission error between outdoor unit Main PCB and fan Main PCB 105 Error diagnosis and countermeasure flow chart Is transmission LED yellow of inverter fan PCB on Yes No Is noise filter or fuse normal refer electric component part Replace noise filter or fuse No Yes Replace inverter fan PCB Are transmission cables of Main PCB Fan PCB connected normally Yes No Re connect transmission cables Is green L...

Page 275: ...art Is inverter fan IPM PCB normal refer electric component part No Is inverter fan PCB Normal refer electric component part Yes No Yes Replace inverter fan PCB Replace inverter fan IPM PCB Adjust connection after check PWM signal cables refer electric component part Is inverter fan motor Normal refer electric component part Replace inverter fan motor No Yes Is there some distance between power ca...

Page 276: ... 2 Defect of fan main PCB Capacitor 3 Defect of fan PCB Error No Error Type Error Point Main Reasons Low voltage of Main outdoor fan motor DC voltage charging failure of inverter fan motor drive 107 Error diagnosis and countermeasure flow chart Location of fan DC link connector Is DC LINK cable Normal No Adjust DC LINK cables Replace inverter fan PCB Yes Inverter fan main PCB Inverter fan IPM PCB ...

Page 277: ... to the high pressure switch in outdoor unit Excessive rise of high pres sure in outdoor unit 109 Sub1 Refer to CH54 Error No Error Type Error Point Main Reasons Wrong connection of 3 phase power cable Reverse phase Phase omission Outdoor 3 phase power sup ply problem Reverse phase No power in 1 or 2 phase 110 Sub1 Refer to CH104 Error No Error Type Error Point Main Reasons 104 transmission error ...

Page 278: ...oor unit sub cooling inlet outlet temperature sensor error 114 Main sub cool inlet 115 Main sub cool outlet 126 Sub1 sub cool inlet 127 Sub1 sub cool outlet 138 Sub2 sub cool inlet 139 Sub2 sub cool outlet 167 Sub3 sub cool inlet 168 Sub3 sub cool outlet Error diagnosis and countermeasure flow chart Is temperature sensor connector connections are normal Is the value of temperature sensor resistanc...

Page 279: ...or 118 Sub1 Refer to CH46 Error No Error Type Error Point Main Reasons Sensor measured of resistance value is abnormal Open Short Compressor suction pipe temperature sensor error 120 Sub1 Refer to CH41 Error No Error Type Error Point Main Reasons Sensor measured value of resis tance is abnormal Open Short Compressor discharge pipe temperature sensor error 121 Sub1 constant compressor 1 122 Sub1 co...

Page 280: ...s abnormal Open Short Low pressure sensor error 129 Sub2 Refer to CH44 Error No Error Type Error Point Main Reasons Sensor measured value is abnormal Open Short Outdoor unit air tempera ture sensor error 130 Sub2 Refer to CH46 Error No Error Type Error Point Main Reasons Sensor measured value is abnormal Open Short Compressor suction tem perature sensor error 132 Sub2 Refer to CH41 Error No Error ...

Page 281: ...4 Main outdoor unit is not receiving sub outdoor unit s signals 147 149 171 Sub outdoor units are not receiving main unit signals Transmission error between outdoor units 142 Sub2 Refer to CH34 Error No Error Type Error Point Main Reasons Compressor Off due to high pressure sensor Excessive rise in high pressure 143 Sub1 145 Sub2 Refer to CH35 Error No Error Type Error Point Main Reasons Compresso...

Page 282: ...necter connection are properly connected No Reconnect it After reset can we check supply voltage at PCB when starting heating mode operation No Is 4 way valve coil connected to 4 way valve normally øπ No Is 4 Way valve coil resistance normal Change 4 Way valve coil No Yes In case of more than 2 units does main outdoor unit recognize as more than 2 units Refer to CH 51 make measure Yes Is compresso...

Page 283: ...en power is supplied in order as follow Sub2 Sub1 Main 3rd number indicates outdoor quantity at Main PCB 7 segment LED Outdoor unit 1set 44 capacity or 10 Outdoor unit 2set 44 50 capacity or 20 Outdoor unit 3set 44 50 50 capacity or 30 Checking method for outdoor unit of 3unit system Main Sub1 Sub2 Close all the SVC valves of high low pressure com mon pipe Operate system Check the difference of hi...

Page 284: ...ween outdoor units 104 Main outdoor unit is not receiving sub outdoor unit s signals 147 149 171 Sub outdoor units are not receiving main unit signals Transmission error between outdoor units 156 Sub3 Refer to CH43 Error No Error Type Error Point Main Reasons Abnormal resistance value of sensor measurement Open Short High pressure sensor error 157 Sub3 Refer to CH42 Error No Error Type Error Point...

Page 285: ...easons Abnormal resistance value of sensor measurement Open Short Sensor error at the out door liquid refrigerant pipe 166 Sub3 Refer to CH114 Error No Error Type Error Point Main Reasons Abnormal resistance value of sensor measurement Open Short Outdoor unit sub cool ing sensor error at inlet outlet 167 Sub3 sub cool ing inlet 168 Sub3 sub cool ing outlet Refer to CH34 Error No Error Type Error P...

Page 286: ...ompressor starts Abnormal staring of constant compressor 173 MAIN constant 174 175 sub1 constant 1 2 176 177 sub2 constant 1 2 Error diagnosis and countermeasure flow chart Is resistance value insulation phase to phase of corresponding constant compressor normal refer electric component part No Replaceconstant compressor Is outdoor air temperature sensor normal No Is discharge temperature sensor o...

Page 287: ... 2 2 After reset of power of outdoor wait for more than 30 minutes temperature of pipes will be cool down then Do Auto Addressing 2 2 While power of HR unit is on check total indoors display CH05 or not Refer to CH05 3 When green LED transmission LED of HR unit blinks regularly Check setting of rotary switch and Dip switch After reset of power of outdoor and HR unit wait for more than 30 minutes t...

Page 288: ... unit main PCB and HR unit PCB Outdoor unit runs in heating mode for about 2 7 minutes After about 5 minutes the number of indoor units in communication are displayed on outdoor unit main PCB for 30 seconds The number of indoor units found is displayed on the outdoor unit main PCB for 30 seconds after the outdoor unit stops Are the number of indoor units connected to the outdoor unit wiring and di...

Page 289: ...for 30 seconds On the HR unit PCB manually set the address of each valve of an HR unit to the central control address of indoor unit connected to the valve Are the number of indoor units connected to the outdoor unit wiring and displayed one N1 equal Are the number displayed with H after a while and that of HR units Installed equal Are all the blue LED s corresponding to valves connected to indoor...

Page 290: ... Contents Operation Turn dip S W01M No 1 on to address valve 1 Display Existing value saved in EEPROM is displayed in 7 SEG Operation Set the digit of 10 to the number in Group High data of the wired remote control connected to the corresponding indoor unit to the valve 1 by pressing left tack S W03M Display Digit increasing with the times of pressing tack S W03M is displayed in left 7 SEG Operati...

Page 291: ...in 7 SEG No 1 2 Display and Setup Setup and Contents Operation Turn dip S W01M No 1 off 7 SEG disappeared 7 SEG SW01M 7 SEG SW01M 1 Main function of SW02M ON S W Selection No 1 Method for addressing valves of an HR unit Auto Manual No 2 Model of HR unit No 3 Model of HR unit No 4 Not used No 5 Not used No 6 Not used No 7 Use only in factory production preset to OFF No 8 Use only in factory product...

Page 292: ...nual addressing 3 Selection of the valve group Valve group control is the function for connecting 2 valves of an HR unit with an indoor unit of large capaci ty More than12kw using a Y branch No valve group Valve 1 and 2 in group control Valve 2 and 3 in group control Valve 3 and 4 in group control Valve 1 and 2 Valve 3 and 4 in group control Indoor unit Indoor unit Indoor unit Indoor unit Indoor u...

Page 293: ...of sensor measurement Open Short HR unit Sub cooling inlet pipe temperature sensor error 202 HR unit1 206 HR unit2 210 HR unit3 214 HR unit4 218 HR unit5 222 HR unit6 226 HR unit7 230 HR unit8 Defective temperature sensor connection Defective temperature sensor Open Short Defective outdoor unit PCB Error No Error Type Error Point Main Reasons Abnormal value of sensor measurement Open Short HR unit...

Page 294: ...n power cables and transmission cables check transmission green LED blink of HR unit PCB 2 If transmission green LED blink of HR unit PCB is normal check setting of rotary switch of HR unit and Dip switch Refer to CH200 Reset power of outdoor and HR unit If transmission error of HR unit occurs it can t be released until reset of outdoor power 3 If transmission green LED blink of HR unit PCB is abn...

Page 295: ...ctive CNU 3 transmission noise error Error No Error Type Error Point Main Reasons When data length from CNU is longer than data length defined at protocol Central controller receive buffer overflow In excess data receive 243 1 Defective CNU 2 Initialization failure of central controller Error No Error Type Error Point Main Reasons Transmission failure between central controller and CNU Central con...

Page 296: ...emporary error of Timing mismatch 4 A C product defect Error No Error Type Error Point Main Reasons Length of received data 0 Central controller Receive Zero Error 251 1 NOISE occurs 2 CNU defect 3 Temporary error of Timing mismatch 4 A C product defect Error No Error Type Error Point Main Reasons Setting address and actual address are different each other Central controller Wrong Address Error 25...

Page 298: ...ht reserved Only for training and service purposes LGE Internal Use Only UW1 268711C W0CZZA 268711G 566001A 566001B W6200 W0FZZA 261704A 268200 COMP COMP 268711D W6631A 649950A W6640B 268711J W6640A W0FZZB 268711H W6631B W6640C 649950B 261704D 261704B Main Unit ...

Page 299: ... 299 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only UW1 566001 268711H 566001 COMP COMP W0CZZA W6640B W6631A W6631B W6640C 649950B 261704D Sub Unit ...

Page 300: ...W52240C W52240D W52240A W52240A THERMISTOR 3 THERMISTOR 1 552200B 661400 435512 435312 552102 552102 554030C 552115C W5210B 554030D 552115D 352111B 352114A 552115A 554030A 352114B 352111B 546810 349600 137213B 437211 W52240E 435310 137213A 554030B 552115B W5210B 561410A 561410C 552204A 437212 UW1 Heat pump _main sub model THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color ...

Page 301: ...W52240D W52240A W52240A THERMISTOR 3 THERMISTOR 1 661400 435512 435312 552102 552102 554030C 552115C W5210B 554030D 552115D 352111B 352114A 552115A 554030A 352114B 352111B 546810 349600 137213B 437211 435310 137213A 554030B 552115B W5210B 552204B 551410D 165010A 165010B 561410C 552204A 437212 W52240C 552200B THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color yellow THERMIS...

Page 302: ...46811 263230B THERMISTOR 2 263230A W52240C W52240D W52240A W52240A THERMISTOR 3 THERMISTOR 1 552200B 661400 435512 435312 552102 552102 554030C 552115C W5210B 554030D 552115D 352111B 352114A 552115A 554030A 352114B 352111B 546810 349600 137213B 437211 435310 137213A 554030B 552115B W5210B 561410A 561410C 552204A 437212 W52240E THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing c...

Page 303: ...c All right reserved Only for training and service purposes LGE Internal Use Only UY2 268711C W6631A W6640A 268711J 268711D 268711H 268711G 649950A 566001 W0CZZB 649950B W6640A W6631C W0FZZA W0FZZB W6640C W6200 268200 261704A 261704D 261704B Main Unit ...

Page 304: ...ded View 304 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only UY2 Sub Unit 566001 261704D W6640C 268711D 649950C W6640B 649950C W6640B W0CZZA ...

Page 305: ...0 W52240 W52240A 552102 435312 137213A 435310 437211 137213B 352111B 352114A 552115A 554030A 552200B THERMISTOR 2 THERMISTOR 2 THERMISTOR 2 UY2 Heat pump_main model THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color yellow THERMISTOR 2 263230B Inv Discharge Pipe HEX Front HEX back Housing color purple THERMISTOR 3 263230C Air Suction Pipe Const Discharge Pipe Housing color...

Page 306: ... 561410C 435512 554030C 552115C W5210B 554030D 552115D 352114B 352111B W52240B 548490 W52240 W52240A 552102 435312 137213A 435310 437211 137213B 352111B 352114A 552115A 554030A 552200B 552203A 552203B 552203C W52240D 552201 W52240E 552200A THERMISTOR 2 THERMISTOR 2 THERMISTOR 2 UY2 Heat pump_sub model THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color yellow THERMISTOR 2 2...

Page 307: ...213A 435310 437211 137213B 352111B 352114A 552115A 554030A 552204A 554160 566000 165010A 561410C 552204B W52240B 352111 552203B 552203A 561410B 548490 263230A W52240E W52240C W52240E 165010B W52240A 552102 553000 THERMISTOR 2 THERMISTOR 2 THERMISTOR 2 UY2 cooling only_main model THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color yellow THERMISTOR 2 263230B Inv Discharge Pi...

Page 308: ...12 137213A 435310 437211 137213B 352111B 352114A 552115A 554030A 552204A 554160 566000 165010A 561410C 552204B W52240B 561410B 548490 263230A W52240E W52240C W52240E 165010B 552203C 552203B 552203A W52240A 552102 553000 THERMISTOR 2 THERMISTOR 2 THERMISTOR 2 UY2 cooling only_sub model THERMISTOR 1 263230A Liquid Pipe Sub Cooler IN Sub Cooler OUT Housing color yellow THERMISTOR 2 263230B Inv Discha...

Page 309: ...30911A 352118 352115 330871 268711C 249941 268711D 249951 135511 263230A 263230B 263230C 158580 158591 349480 W49810 354211 130412 W50011 130911B 130911C 352150 359012 346810 349600 THERMISTOR 2 THERMISTOR 3 THERMISTOR THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 310: ...118 352115 330871 268711C 249941 268711D 249951 135511 263230A 263230B 263230C 158580 158591 349480 354211 266090 159830 130412 140570 130911A 359012 346810 349600 W49810 THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 TE Plasma model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 311: ...1A 349600 354211 352118 55211G 263230C 263230B 346810 359012 140570 249941 330871 268711C 249951 135511 268711D 330860 349480 263230A W6640 W0FZZ 352150 130911C 130911B THERMISTOR 2 THERMISTOR 1 THERMISTOR 3 130911D TH Standard model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 312: ...600 354211 352118 55211G 263230C 263230B 346810 359012 140570 249941 330871 268711C 249951 135511 268711D 330860 349480 263230A W6640 W0FZZ 352150 130911C 130911B THERMISTOR 2 THERMISTOR 1 THERMISTOR 3 159830 266090 130911D TH Plasma model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 313: ...1A 354211 352118 352115 346810 359012 140570 249941 330871 268711C 249951 135511 268711D 330860 349480 263230A W6640 W0FZZ W6851 352150 130911D 130911C 130911B W0CZZ 263230B 263230C THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 TD1 Standard model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 314: ...211 352118 352115 346810 359012 140570 249941 159830 266090 330871 268711C 249951 135511 268711D 330860 349480 263230A W6640 W0FZZ W6851 352150 130911C 130911B W0CZZ 263230B 263230C THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 130911D TD1 Plasma model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 315: ...6810 263230C 149304 135516 W50011 359011 352150 158591 130911 268711D 249951 268711C W0FZZ 354210 354212 342800 352118 35211G 263230A W6640 135511 THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 249941 TJ Standard model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 316: ...59830 263230C 149304 135516 W50011 359011 352150 158591 130911 268711D 249951 268711C 266090 W0FZZ 354210 354212 342800 352118 35211G 263230A W6640 135511 THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 249941 TJ Plasma model THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 317: ...3230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red 330871 268711D 268711C 249941 359011 158591 352150 W6640 249951 W0FZZ 135511 352116 354210B 354210A 55211G 342800 130911 W50011 346810 263230B 263230C 263230A THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 354212 TL Standard model ...

Page 318: ...Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red 330871 268711D 268711C 249941 359011 158591 352150 W6640 135511 249951 W0FZZ 352116 354210B 354210A 55211G 342800 130911 W50011 346810 266090 159830 354212 263230B 263230C 263230A THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 TL Plasma model ...

Page 319: ...16 330870 268711C 249951 W6640 336610B 567480C 567480A 336610A 137213A 158591 567480B 348601 346810 349600 137214 147901 W3001 137213B W1JK 268711D W0FFZ 437212B 437212A W50011 THERMISTOR 3 THERMISTOR 2 THERMISTOR 1 249940 BH THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 320: ...68711C 249951 261704 336610B 567480C 567480A 336610A 437212B 437212A W0FZZ 158591 567480B 268711E W6640 268711D 346810 346810 349600 137214 147901 W3001 W50011 137213B 137213A 359012 W1JK THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 249940 BG THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 321: ...0870 268711C 268711E 268711D 249951 W0FZZ 567480B 567480A 567480C 346810 359012 336610B 336610A 352118 137214 147901 W3001 354210 W50011 437212B 437212A 261704 W6640 158591 THERMISTOR 1 THERMISTOR 3 THERMISTOR 2 249940 BR THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 322: ...2A 336600B 359012B 346810B 346810A 336600A 158591 137211 352150 352118 330870 268711A 249951 W0FZZ W4811 268711B 55211G 567480B 567480A 567480C W6640 437213 354210 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 B1 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 323: ...6600A 359012A 567480B 567480A 567480C 158591 330870 137211 3590001 352150 352118 268711A W0FZZ 249951 268711B W6640 55211G 336600B 152302 346810 437213 354210 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 B2 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 324: ...740A 268711E 359012B 249951 359012A 336600B 336600A 346810B 346810A 147780 152302 147780 137211 152302 330870 237204 W6640 268711C W0FZZ 352115 749740B 567480A 567480B 567480C W6631A W6631B W6631C W6631D 354210 352116 THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 325: ...152302 152302 359012A 268711C 268711E 249951 W6640 352115 354210 336600B 359212B W0FZZ 330870 W6631A W6631B W6631D W6631C 567480A 567480B 567480C THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 359212B 359212B 346810A 346810B THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 326: ... W3110 352118 237204 137211 147780 147780 354210 330870 346810 359012A 352115 137213 237204 249951 159830 359012B 336600A 336600B 346810 268711B 268711E W0FZZ W6631A W6631B W6631C W6631D W6640 567480A 567480B 567480C THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 327: ...2118 352115 330870 354210 159830 152302 359012A 359012B 346810 346810 336600B 336600A 249951 W6640 268711B 268711E W0FZZ W6631A W6631B W6631C W6631D 567480A 567480B 567480C THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 328: ...s LGE Internal Use Only SE1 Standard 152302 342800 567480A 567480B 359011 131410 733010 135312 135311 147581 146811 346810 135516 352116 352150 268711A 354210 249951 268711C W0FZZ THERMISTOR 2 THERMISTOR 1 W6640 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 329: ...Internal Use Only SE1 Plasma 152302 342800 359011 131410 733010 135312 135311 159830 147581 146811 346810 135516 352116 352150 268711A 354210 249951 268711C W6640 266090 W0FZZ 567480A 567480B THERMISTOR 2 THERMISTOR 1 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 330: ...rnal Use Only S5 Standard 152302 342800 359011 131410 733010 135316 135311 147581 146811 346810 135516 352118 352115 352150 268711A W50400 354210 249951 567480A 567480B 268711C W0FZZ THERMISTOR 2 THERMISTOR 1 W6640 W50400 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 331: ...se Only S5 Plasma 152302 342800 359011 131410 733010 135316 135311 147581 146811 346810 135516 352118 352115 352150 268711A W50400 W50400 354210 249951 159830 268711C W6640 266090 W0FZZ 567480A 567480B THERMISTOR 2 THERMISTOR 1 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 332: ...135500C 268711B 268711C 147581 359012 349600 352380 146811 146811 147581 346810 147581 268711A 135500A 131410 354210 135500B 146811 152302 135316 268711D 330870 135313 159830 249951 352116 55211G 567480A 567480B 352150 THERMISTOR 2 THERMISTOR 1 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 333: ...2 135311A 146811 135500B 146811 352380B 352380A 131410 147582 135311B 135500A 135311C 147581 354210 352150 35211B 268711A 135313 349490 330870 135500C 346810A 359012A 346810B 359012B 146811 135316 152302 352115 159830 352116 567480B 567480A THERMISTOR 2 THERMISTOR 1 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 334: ...40 135316 137211 135311 147581 346810 266090 135500 135516 35211B 552200A 354210 249951 W6640 268711B W0FZZ 152302 146811A 146811B 352150 263230A THERMISTOR 1 THERMISTOR 3 THERMISTOR 2 159830 135800 135080 268711H 268711G 268711J 135511 149304 354212 THERMISTOR 1 263230A Air Housing color yellow THERMISTOR 2 263230B Eva IN Housing color white THERMISTOR 3 263230C Eva OUT Housing color red ...

Page 335: ...210 147581 249951 268711B W0FZZ 268711C W6640 266090 249941 733010 131410 146811B 135311 268711A 268711E 135313 342800 359011 146811A 268711D 135316 146811A 152302 159830 567480B 567480A 346810 35211B 135516 352115 352116 THERMISTOR 1 THERMISTOR 2 THERMISTOR 1 567480A Air Eva IN Housing color white THERMISTOR 2 567480B Eva OUT Housing color red ...

Page 336: ...10 W4810 352150 147581 266000 330870 266000 733010 268711A 146811 359011 330780 342800 135500 131410 135511A 135511B 567480B 567480C 567480A 268711C 669010 268711D 346810 354210 352116 352115 35211B THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 337: ...5211G W3110 268711A 268711D 249951 W6640 268711B 669010 135515B 146811 249310 147581 354210 152312 135515A 336600A 336600B 359012 346810 147911 152312 237202 135303 352150 567480A 567480B 567480C THERMISTOR 1 THERMISTOR 2 THERMISTOR 3 THERMISTOR 1 567480A Air Housing color yellow THERMISTOR 2 567480B Eva IN Housing color white THERMISTOR 3 567480C Eva OUT Housing color red ...

Page 338: ...P NO 3828A24006P FEBRUARY 2009 ...

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