Service Manual
Page 1
website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) 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) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) 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
...& Floor(Convertible) 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 Outdoor Unit A3U H 36 3 F A 0 Serial Number Function A : Basic Multi ...Capacity in Btu/h Ex) 24,000 Btu/h '24', 36,000 Btu/h '36' Model Type H: Heat Pump C: Cooling Only R-410A MPS Variable Multi System Outdoor Unit And No. look type N : N- look type L : L- Model Number Nomenclature Model Number Nomenclature Indoor Unit AMN H 09 3 D 4 A 0 Serial Number Function ...
...& Floor(Convertible) 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 Outdoor Unit A3U H 36 3 F A 0 Serial Number Function A : Basic Multi ...Capacity in Btu/h Ex) 24,000 Btu/h '24', 36,000 Btu/h '36' Model Type H: Heat Pump C: Cooling Only R-410A MPS Variable Multi System Outdoor Unit And No. look type N : N- look type L : L- Model Number Nomenclature Model Number Nomenclature Indoor Unit AMN H 09 3 D 4 A 0 Serial Number Function ...
Service Manual
Page 4
... harm to the risk of electric shock. NOTICE This symbol alerts you to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner Model Number Nomenclature Combination table Operation 1 UNIT 2 UNIT 3 UNIT Combination(k Btu) A B C Total Unit-A Cooling Capacity (Btu/h) Input Unit-B Unit-C Total (W) Current EER (A) (Btu/h.w) Unit-A Heating Capacity...
... harm to the risk of electric shock. NOTICE This symbol alerts you to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner Model Number Nomenclature Combination table Operation 1 UNIT 2 UNIT 3 UNIT Combination(k Btu) A B C Total Unit-A Cooling Capacity (Btu/h) Input Unit-B Unit-C Total (W) Current EER (A) (Btu/h.w) Unit-A Heating Capacity...
Service Manual
Page 11
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 Dimensions Indoor Unit 1. Split Type Indoor H D W Dimensions 2.
Service Manual
Page 13
.... Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity 5 Model Nominal Heating Capacity 5 Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model Input Running Current Fan Type No. Due to our policy of Rows & ...) dBA inch(mm) l/h inch(mm) kg(lbs) inch(mm) inch(mm) mm inch(mm) 20/40ft(hi-c) Wall Mounted AMNC093D4A0(LMN090CE) AMNH093D4A0(LMN090HE) AMNC123DEA0(LMN120CE) AMNH123DEA0(LMN120HE) 2,267(2,637) 9,000 - 8.2(289) 18~30 15 DL-88430LGIF DC36 0.15 Cross Flow Fan 1/3.74(95) 31...
.... Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity 5 Model Nominal Heating Capacity 5 Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model Input Running Current Fan Type No. Due to our policy of Rows & ...) dBA inch(mm) l/h inch(mm) kg(lbs) inch(mm) inch(mm) mm inch(mm) 20/40ft(hi-c) Wall Mounted AMNC093D4A0(LMN090CE) AMNH093D4A0(LMN090HE) AMNC123DEA0(LMN120CE) AMNH123DEA0(LMN120HE) 2,267(2,637) 9,000 - 8.2(289) 18~30 15 DL-88430LGIF DC36 0.15 Cross Flow Fan 1/3.74(95) 31...
Service Manual
Page 14
...Outdoor Temperature 8.3°C(46.94°F)DB/6.1°C(42.98°F)WB -Interconnecting Piping Length 7.5m -Level Difference of Zero. Multiple piping models Model Cooling Capacity5 Btu/hr W kcal/hr Heating Capacity5 Btu/hr W kcal/hr Input5 Cooling W Heating W Running Current5(208/230V) Cooling... Piping Length 7.5m -Level Difference of Zero. 2. Capacities are Net Capacities. 3. 5 : See the page "Combination Table" 4. Fan motor Model Output W Capacitor µF/Vac Fan Type No. Interunit Piping Length Total of Rows & Column/No. of Each Room m For One Room m...
...Outdoor Temperature 8.3°C(46.94°F)DB/6.1°C(42.98°F)WB -Interconnecting Piping Length 7.5m -Level Difference of Zero. Multiple piping models Model Cooling Capacity5 Btu/hr W kcal/hr Heating Capacity5 Btu/hr W kcal/hr Input5 Cooling W Heating W Running Current5(208/230V) Cooling... Piping Length 7.5m -Level Difference of Zero. 2. Capacities are Net Capacities. 3. 5 : See the page "Combination Table" 4. Fan motor Model Output W Capacitor µF/Vac Fan Type No. Interunit Piping Length Total of Rows & Column/No. of Each Room m For One Room m...
Service Manual
Page 33
... tabs on the control board individually according to the indoor unit 1. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Model 36k Power source Fuse or breaker Capacity 1Ø, 230/208V 40A Connect the cable to the outdoor unit connection. • Ensure that the color of...
... tabs on the control board individually according to the indoor unit 1. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Model 36k Power source Fuse or breaker Capacity 1Ø, 230/208V 40A Connect the cable to the outdoor unit connection. • Ensure that the color of...
Service Manual
Page 45
...Auto operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation (Heat pump model only) Outdoor unit : Lights up during outdoor unit operation.(Cooling model only) operation Desire temperature For cooling,dehumidification,heating modes it display Destired temperature indicator •... "Wall Mounted Type is standard" * Functions is delayed for 5 seconds at the starting. Timer : Lights up and down automatically.(Model base) Deice (defrost) control (Heating) • Both the indoor and outdoor fan stops during the system operation. Service Manual 45...
...Auto operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation (Heat pump model only) Outdoor unit : Lights up during outdoor unit operation.(Cooling model only) operation Desire temperature For cooling,dehumidification,heating modes it display Destired temperature indicator •... "Wall Mounted Type is standard" * Functions is delayed for 5 seconds at the starting. Timer : Lights up and down automatically.(Model base) Deice (defrost) control (Heating) • Both the indoor and outdoor fan stops during the system operation. Service Manual 45...
Service Manual
Page 46
...3 minutes. 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. Time Delay Safety Control • Restarting is inhibited for 5 sec at low speed. Hot-start .... Airflow Direction Control • The louver can be reached 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. Indoor Fan Speed Control • High...
...3 minutes. 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. Time Delay Safety Control • Restarting is inhibited for 5 sec at low speed. Hot-start .... Airflow Direction Control • The louver can be reached 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. Indoor Fan Speed Control • High...
Service Manual
Page 47
... from heating to Oil Return System • In single(one) comp operation duration, another comp will operate for 30 seconds every 1 hours. R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to the load condition. Operation Function of Outdoor Unit Outdoor Unit Two Comp algorithm •...
... from heating to Oil Return System • In single(one) comp operation duration, another comp will operate for 30 seconds every 1 hours. R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to the load condition. Operation Function of Outdoor Unit Outdoor Unit Two Comp algorithm •...
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.
... 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.
Service Manual
Page 74
... • Discharge sensor temp. Error code Title 51 Capacitor error Cause of refrigerent. • Check the SVC V/V open . 3. Check the combination table. 5 In the tropical model case ➔ single cycle has no error for over capacity. 74 Multi type Air Conditioner Troubleshooting Guide Error code Title 33 D-Pipe Temp.
... • Discharge sensor temp. Error code Title 51 Capacitor error Cause of refrigerent. • Check the SVC V/V open . 3. Check the combination table. 5 In the tropical model case ➔ single cycle has no error for over capacity. 74 Multi type Air Conditioner Troubleshooting Guide Error code Title 33 D-Pipe Temp.