Service Manual
Page 1
website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNH123DEA0 (LMN120HE) AMNC093D4A0(LMN090CE) AMNC123DEA0 (LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNH123APM0(LMAN120HNS) AMNC093APM0(LMAN090CNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNH123DEA0 (LMN120HE) AMNC093D4A0(LMN090CE) AMNC123DEA0 (LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNH123APM0(LMAN120HNS) AMNC093APM0(LMAN090CNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Service Manual
Page 2
Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit...11 Outdoor Unit ...12 Product Specifications ...13 Installation ...15 Installation Parts...15 ...
Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit...11 Outdoor Unit ...12 Product Specifications ...13 Installation ...15 Installation Parts...15 ...
Service Manual
Page 3
... Unit Electrical Rating 3: 1Ø, 208~230V, 60Hz Nominal Cooling Capacity in Btu/h Ex) 9,000 Btu/h '09', 12,000 Btu/h '12' Model Type H: Heat Pump C: Cooling Only MPS Variable Multi System Indoor Unit A2U H 24 3 F A 0 Serial Number Function A : Basic Multi Type... look type M : M- look type L : L- of Connectable Indoor Units Ex) A2U : Connectable max. 2 Indoor Units Service Manual 3 look type N : N- Model Number Nomenclature Model Number Nomenclature Indoor Unit AMN H 09 3 D 4 A 0 Serial Number Function A : Basic, L : Nano Plasma + Auto Clean(Wall Mounted) C: Plasma(Ceiling ...
... Unit Electrical Rating 3: 1Ø, 208~230V, 60Hz Nominal Cooling Capacity in Btu/h Ex) 9,000 Btu/h '09', 12,000 Btu/h '12' Model Type H: Heat Pump C: Cooling Only MPS Variable Multi System Indoor Unit A2U H 24 3 F A 0 Serial Number Function A : Basic Multi Type... look type M : M- look type L : L- of Connectable Indoor Units Ex) A2U : Connectable max. 2 Indoor Units Service Manual 3 look type N : N- Model Number Nomenclature Model Number Nomenclature Indoor Unit AMN H 09 3 D 4 A 0 Serial Number Function A : Basic, L : Nano Plasma + Auto Clean(Wall Mounted) C: Plasma(Ceiling ...
Service Manual
Page 4
NOTICE This symbol alerts you to the air conditioner. Model Number Nomenclature Combination table Operation 1 Unit 2 Unit Combination of Indoor Unit(kBtu/h) Cooling Each Capacity Total Capacity Unit-A Unit-B Total UNIT-A(Btu/h) UNIT-B(Btu/h) Btu/h ...
NOTICE This symbol alerts you to the air conditioner. Model Number Nomenclature Combination table Operation 1 Unit 2 Unit Combination of Indoor Unit(kBtu/h) Cooling Each Capacity Total Capacity Unit-A Unit-B Total UNIT-A(Btu/h) UNIT-B(Btu/h) Btu/h ...
Service Manual
Page 11
Dimensions Indoor Unit 1. Split Type Indoor H D W Dimensions 2. Art Cool Type Indoor Unit W D H Pipe Hole Hanger Hole Installation plate Fix Hole Dimension W H D Model mm mm mm Split Type S4 SE 9 kBtu/h 12 kBtu/h 840 895 270 282 153 165 ARTCOOL Type SP3 9 kBtu/h 12 kBtu/h 570 568 129 Service Manual 11
Dimensions Indoor Unit 1. Split Type Indoor H D W Dimensions 2. Art Cool Type Indoor Unit W D H Pipe Hole Hanger Hole Installation plate Fix Hole Dimension W H D Model mm mm mm Split Type S4 SE 9 kBtu/h 12 kBtu/h 840 895 270 282 153 165 ARTCOOL Type SP3 9 kBtu/h 12 kBtu/h 570 568 129 Service Manual 11
Service Manual
Page 13
...2R,15C - 35.2*11.1*6.5(895*282*165) 9.5(20.9) 1/4 (6.35) 3/8 (9.52) 20 38.3*9.1*14.6(973*231*372) 353/719 (792) AMNH123DEA0 (LMN120HE) 3,023(3,516) 12,000 3,023(3,516) 12,000 9.4(332) 16~30 15 DL-88430LGIF DC36 0.15 Cross Flow Fan 1/3.74(95) 36 /...792) Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model No. Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting ...
...2R,15C - 35.2*11.1*6.5(895*282*165) 9.5(20.9) 1/4 (6.35) 3/8 (9.52) 20 38.3*9.1*14.6(973*231*372) 353/719 (792) AMNH123DEA0 (LMN120HE) 3,023(3,516) 12,000 3,023(3,516) 12,000 9.4(332) 16~30 15 DL-88430LGIF DC36 0.15 Cross Flow Fan 1/3.74(95) 36 /...792) Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model No. Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting ...
Service Manual
Page 14
...Length 7.5m -Level Difference of Connectable Indoor Units Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type Capacitor µF/Vac O.L.P Type(model name) Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type ...*800*320) 69(152) 30 15 7.5 7.5 40.2*34.3*17.3 (1020*870*440) SE 12K +SE 12K 54/114 Notes: 1. Multiple piping models Model Cooling Capacity# Btu/hr W kcal/hr Heating Capacity# Btu/hr W kcal/hr Input# Cooling W Heating W Running Current#(208/230V) Cooling A Heating...
...Length 7.5m -Level Difference of Connectable Indoor Units Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type Capacitor µF/Vac O.L.P Type(model name) Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type ...*800*320) 69(152) 30 15 7.5 7.5 40.2*34.3*17.3 (1020*870*440) SE 12K +SE 12K 54/114 Notes: 1. Multiple piping models Model Cooling Capacity# Btu/hr W kcal/hr Heating Capacity# Btu/hr W kcal/hr Input# Cooling W Heating W Running Current#(208/230V) Cooling A Heating...
Service Manual
Page 33
... to the terminals on the top inside edge of the chassis. • Press the Grille toward the chassis until it will be back into place. Model 24k Power source Fuse or breaker Capacity 1Ø, 230/208V 25A Connect the cable to the outdoor unit connection. • Ensure that the color of...
... to the terminals on the top inside edge of the chassis. • Press the Grille toward the chassis until it will be back into place. Model 24k Power source Fuse or breaker Capacity 1Ø, 230/208V 25A Connect the cable to the outdoor unit connection. • Ensure that the color of...
Service Manual
Page 45
...; Indoor fan is delayed for approx. 3 minutes. Defrost Mode : Lights up during Defrost Mode or Hot Start operation (Heat pump model only) Outdoor unit : Lights up during the system operation. Natural Air Control by Remote controller Sensing the Room Temperature • Room ... seconds at the desired position or swing up during Sleep Mode Auto operation. Timer : Lights up during outdoor unit operation.(Cooling model only) operation Desire temperature For cooling,dehumidification,heating modes it display Destired temperature indicator • Cooling : 18°C~30°...
...; Indoor fan is delayed for approx. 3 minutes. Defrost Mode : Lights up during Defrost Mode or Hot Start operation (Heat pump model only) Outdoor unit : Lights up during the system operation. Natural Air Control by Remote controller Sensing the Room Temperature • Room ... seconds at the desired position or swing up during Sleep Mode Auto operation. Timer : Lights up during outdoor unit operation.(Cooling model only) operation Desire temperature For cooling,dehumidification,heating modes it display Destired temperature indicator • Cooling : 18°C~30°...
Service Manual
Page 46
.... Defrost(Deice) control (Heating) • Both the indoor and outdoor fan stops during Defrost Mode or Hot Start operation.(Heat pump model only) : Lights up and down automatically. Soft Dry Operation Mode • Intermittent operation of fan at the desired position or swing ...up during outdoor unit operation.(Cooling model only) Desire temperature For cooling,dehumidification,heating modes it is operating with the Setting Temp. Airflow Direction Control • The louver...
.... Defrost(Deice) control (Heating) • Both the indoor and outdoor fan stops during Defrost Mode or Hot Start operation.(Heat pump model only) : Lights up and down automatically. Soft Dry Operation Mode • Intermittent operation of fan at the desired position or swing ...up during outdoor unit operation.(Cooling model only) Desire temperature For cooling,dehumidification,heating modes it is operating with the Setting Temp. Airflow Direction Control • The louver...
Service Manual
Page 47
... deice outdoor heat exchanger in low temp condtion, convert operating mode from being overload, protector will turn off comp A Service Manual 47 R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to keep constant superheat or subcooling. LEV Control • LEV pulse is too high(around...
... deice outdoor heat exchanger in low temp condtion, convert operating mode from being overload, protector will turn off comp A Service Manual 47 R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to keep constant superheat or subcooling. LEV Control • LEV pulse is too high(around...
Service Manual
Page 48
... °C/°F 13 17 18 14 15 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( ) 1 START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2 OPERATION MODE SELECTION BUTTON Used to... mode. 17 ˚C TO ˚F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit. 18 HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (NOT ON ALL MODELS) Used to the system.
... °C/°F 13 17 18 14 15 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( ) 1 START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2 OPERATION MODE SELECTION BUTTON Used to... mode. 17 ˚C TO ˚F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit. 18 HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (NOT ON ALL MODELS) Used to the system.
Service Manual
Page 65
... occurrence of error code, be sure to turn off the power and then turn on. • Having or not of error code is different from Model. D-Pipe Thermistor Error(Open/Short) 51 Capcity Error(High/Low) 3 times 3 times OFF 4 times 4 times OFF 4 times 5 times OFF 4 times 7 times OFF 5 times 1 times OFF...
... occurrence of error code, be sure to turn off the power and then turn on. • Having or not of error code is different from Model. D-Pipe Thermistor Error(Open/Short) 51 Capcity Error(High/Low) 3 times 3 times OFF 4 times 4 times OFF 4 times 5 times OFF 4 times 7 times OFF 5 times 1 times OFF...
Service Manual
Page 74
... temp. bination • Check the combination table ❑ Check Point 1. High Cause of refrigerent. 4. Check the constant compressor. Check the combination table. # In the tropical model case ➔ single cycle has no error for over load. 2. Error code Title 51 Capacitor error Cause of refrigerent. • Check the SVC V/V open . 3. Check...
... temp. bination • Check the combination table ❑ Check Point 1. High Cause of refrigerent. 4. Check the constant compressor. Check the combination table. # In the tropical model case ➔ single cycle has no error for over load. 2. Error code Title 51 Capacitor error Cause of refrigerent. • Check the SVC V/V open . 3. Check...
Service Manual
Page 85
... these parts may be changed depending upon the buyer's request. (GCSC WEBSITE http://biz.LGservice.com) Solenoid(Coil Assempy, Reverse) is only for heat pump model. SVC A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) CODE 437210 PANEL ASSEMBLY,FRONT(SUB) 1A00197C 1A00197C R 137213-1 PANEL ASSEMBLY,SIDE 1A00202F 1A00202F R 137213-2 PANEL ASSEMBLY,SIDE 3A02284R 3A02284R...
... these parts may be changed depending upon the buyer's request. (GCSC WEBSITE http://biz.LGservice.com) Solenoid(Coil Assempy, Reverse) is only for heat pump model. SVC A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) CODE 437210 PANEL ASSEMBLY,FRONT(SUB) 1A00197C 1A00197C R 137213-1 PANEL ASSEMBLY,SIDE 1A00202F 1A00202F R 137213-2 PANEL ASSEMBLY,SIDE 3A02284R 3A02284R...