Service Manual
Page 2
...39 Operation ...40 Function of control...40 Function of Indoor Unit ...45 Function of Outdoor Unit ...47 Remote Control Operation ...48 Disassembly ...49 Indoor Unit...49 Schematic Diagram...54 Electronic Control Device ...54 Wiring Diagram...58 Components Locations...59 Troubleshooting Guide ...64 Refrigeration Cycle Diagram ...64 Self-diagnosis Function ...65 Cycle Troubleshooting Guide...66 Electronic Parts Troubleshooting Guide 67 General Information...72 2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
...39 Operation ...40 Function of control...40 Function of Indoor Unit ...45 Function of Outdoor Unit ...47 Remote Control Operation ...48 Disassembly ...49 Indoor Unit...49 Schematic Diagram...54 Electronic Control Device ...54 Wiring Diagram...58 Components Locations...59 Troubleshooting Guide ...64 Refrigeration Cycle Diagram ...64 Self-diagnosis Function ...65 Cycle Troubleshooting Guide...66 Electronic Parts Troubleshooting Guide 67 General Information...72 2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
Service Manual
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... Plasma + Auto Clean(Wall Mounted) C: Plasma(Ceiling Cassette), G: Low Static Motor ART COOL(DELUXE) Type Front Panel Color B : Blue, D : Wood, M : Metal, R : Mirror, W : White Chassis Name Indoor Unit Type Wall mounted split D : D- look type G : G- look type N : N- look type L : L- look type Artcool type A : standard/wide type D : Deluxe type B : Ceiling Concealed Duct V : Ceiling & Floor(Convertible) Outdoor 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...
... Plasma + Auto Clean(Wall Mounted) C: Plasma(Ceiling Cassette), G: Low Static Motor ART COOL(DELUXE) Type Front Panel Color B : Blue, D : Wood, M : Metal, R : Mirror, W : White Chassis Name Indoor Unit Type Wall mounted split D : D- look type G : G- look type N : N- look type L : L- look type Artcool type A : standard/wide type D : Deluxe type B : Ceiling Concealed Duct V : Ceiling & Floor(Convertible) Outdoor 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...
Service Manual
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... air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB 3.The total ability of connected a indoor unit is based on : indoor temp. 26.7°C(80.1°F)DB, 19.4°C(66.9°F)WB; outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB 2.Heating Capacity is up to 24k Btu/h Symbols Used in this Manual...
... air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB 3.The total ability of connected a indoor unit is based on : indoor temp. 26.7°C(80.1°F)DB, 19.4°C(66.9°F)WB; outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB 2.Heating Capacity is up to 24k Btu/h Symbols Used in this Manual...
Service Manual
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... electric shock. Turn the main power off the breaker. When the product is risk of product damage or failure, or unintend- • This could result in personal injury and product dam- or fall onto the outdoor unit. • There is not be used for gas (refrigerant) leak- age. water is soaked Be cautious that water could step on connect the power supply plug or turn off when cleaning...
... electric shock. Turn the main power off the breaker. When the product is risk of product damage or failure, or unintend- • This could result in personal injury and product dam- or fall onto the outdoor unit. • There is not be used for gas (refrigerant) leak- age. water is soaked Be cautious that water could step on connect the power supply plug or turn off when cleaning...
Service Manual
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... condenser and evaporator fins, could cause product malfunction or inefficient operation. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of damage or loss of the product when removing the air filter. I Operational Do not expose the skin directly to your neighbors. Do not use harsh detergents, solvents, etc. Do not use the product for special purposes, such as preserving foods, works...
... condenser and evaporator fins, could cause product malfunction or inefficient operation. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of damage or loss of the product when removing the air filter. I Operational Do not expose the skin directly to your neighbors. Do not use harsh detergents, solvents, etc. Do not use the product for special purposes, such as preserving foods, works...
Service Manual
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... policy of Poles Input Running Current Fan Type No. Used / Diameter Noise Level (Sound Press,1m) H/M/L Temperature controller Coil Tube Size (OD) Fins per inch No. of innovation some specifications may be changed without notification. Service Manual 13 of Rows & Column Dehumidification Rate Dimensions (W*H*D) Net Weight Piping Connection Liquid Gas Drain hose (ID Ø) Packing Dimension (W*H*D) Stuffing Quantity With(Without) S/Parts kcal/h(W) Btu/h kcal/h(W) Btu/h CMM(CFM) °C W Artcool AMNC093APM0(LMAN090CNS...
... policy of Poles Input Running Current Fan Type No. Used / Diameter Noise Level (Sound Press,1m) H/M/L Temperature controller Coil Tube Size (OD) Fins per inch No. of innovation some specifications may be changed without notification. Service Manual 13 of Rows & Column Dehumidification Rate Dimensions (W*H*D) Net Weight Piping Connection Liquid Gas Drain hose (ID Ø) Packing Dimension (W*H*D) Stuffing Quantity With(Without) S/Parts kcal/h(W) Btu/h kcal/h(W) Btu/h CMM(CFM) °C W Artcool AMNC093APM0(LMAN090CNS...
Service Manual
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... to our policy 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 Capacitor µF/Vac O.L.P Type(model name) Refrigerant charge Charge g(oz) Type Control Coil Tube Size (OD) inch(mm) Fins per inch No. Number of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A2UH243FA0(LMU240HE) 9,000~24,000...
... to our policy 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 Capacitor µF/Vac O.L.P Type(model name) Refrigerant charge Charge g(oz) Type Control Coil Tube Size (OD) inch(mm) Fins per inch No. Number of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A2UH243FA0(LMU240HE) 9,000~24,000...
Service Manual
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... the matter, connect the pipe and the wire. (Installation manual reference) I Sticking the installation guide map and fixing Indoor unit 1. In case of product at the upper screws. (In this page when making a hole in the wall. 8. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner Drill the piercing part for hanging product) 10mm INSTALLATION GU 9. Make a hole with diameter of 6mm and depth of product with plastic anchors, and...
... the matter, connect the pipe and the wire. (Installation manual reference) I Sticking the installation guide map and fixing Indoor unit 1. In case of product at the upper screws. (In this page when making a hole in the wall. 8. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner Drill the piercing part for hanging product) 10mm INSTALLATION GU 9. Make a hole with diameter of 6mm and depth of product with plastic anchors, and...
Service Manual
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.... Indoor unit installation • Hang the indoor unit from the wall. Align the center of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain hose Indoor unit drain hose Adhesive Vinyl tape (narrow) When extending the drain hose at the top of Piping For left rear piping 1. between the indoor unit and the installation...
.... Indoor unit installation • Hang the indoor unit from the wall. Align the center of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain hose Indoor unit drain hose Adhesive Vinyl tape (narrow) When extending the drain hose at the top of Piping For left rear piping 1. between the indoor unit and the installation...
Service Manual
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... common wires. RECOMMAND: The power cord connected to the indoor and outdoor unit should be complied with the following specifications (ETL recognized and CSA certified). are the same as the fixture. 30 Multi type Air Conditioner Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. The wiring for the outdoor unit can be pulled out easily. • Connect the wires according to change without notice. RECOMMAND: • The circuit diagram is...
... common wires. RECOMMAND: The power cord connected to the indoor and outdoor unit should be complied with the following specifications (ETL recognized and CSA certified). are the same as the fixture. 30 Multi type Air Conditioner Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. The wiring for the outdoor unit can be pulled out easily. • Connect the wires according to change without notice. RECOMMAND: • The circuit diagram is...
Service Manual
Page 35
... opening around the pipings with gum type sealer. In cases where the Outdoor unit is installed above the ground. Secure the tapped piping along the exterior wall. Taping Drain hose Plastic band Pipings Connecting cable Power supply cord • Trap is installed below the indoor unit perform the following . 1. In cases where the outdoor unit is required to prevent water from down to prevent water entering the room. 3. Tape the piping, drain hose and...
... opening around the pipings with gum type sealer. In cases where the Outdoor unit is installed above the ground. Secure the tapped piping along the exterior wall. Taping Drain hose Plastic band Pipings Connecting cable Power supply cord • Trap is installed below the indoor unit perform the following . 1. In cases where the outdoor unit is required to prevent water from down to prevent water entering the room. 3. Tape the piping, drain hose and...
Service Manual
Page 39
... side service valves are installed correctly. Do not use rechargeable batteries. • Remove the batteries from the remote controller if the sys- The pressure of the rated voltage. tem is carried out firstly, it according to the hose, secure the unit with a nail or wire assuming the influence of compressor. If heating operation is not going to the trouble of wind and earthquake. Reattach the cover...
... side service valves are installed correctly. Do not use rechargeable batteries. • Remove the batteries from the remote controller if the sys- The pressure of the rated voltage. tem is carried out firstly, it according to the hose, secure the unit with a nail or wire assuming the influence of compressor. If heating operation is not going to the trouble of wind and earthquake. Reattach the cover...
Service Manual
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... Intake Air Temp Compressor ON Temp ➲ Setting Temp+0.5°C(32.9°F) Compressor OFF Temp ➲ Setting Temp-0.5°C(31.1°F) • While in defrost control I Soft Dry Operation Mode • When the dehumidification operation input by the remote control. While compressor is off when timer mode is automatically set according to operate again. Operation Operation Function of the setting. MAIN UNIT FUNCTION • DISPLAY Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing...
... Intake Air Temp Compressor ON Temp ➲ Setting Temp+0.5°C(32.9°F) Compressor OFF Temp ➲ Setting Temp-0.5°C(31.1°F) • While in defrost control I Soft Dry Operation Mode • When the dehumidification operation input by the remote control. While compressor is off when timer mode is automatically set according to operate again. Operation Operation Function of the setting. MAIN UNIT FUNCTION • DISPLAY Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing...
Service Manual
Page 43
... sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set by 1°C(33.8°F). randomly by the remote control while in appliance operation, the operation of the appliance stops. • While the appliance is on pause, the sleep timer mode cannot be input. I Auto Restarting Operation • When the power is restored after is input by the Chaos Simulation. Service Manual 43 I Sleep Timer Operation...
... sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set by 1°C(33.8°F). randomly by the remote control while in appliance operation, the operation of the appliance stops. • While the appliance is on pause, the sleep timer mode cannot be input. I Auto Restarting Operation • When the power is restored after is input by the Chaos Simulation. Service Manual 43 I Sleep Timer Operation...
Service Manual
Page 44
tion condition is set according to the Auto Restarting position or the remote control position, the forced operation is canceled and the appliance stops operating. • In the forced operation mode, the indoor fan is switched from the remote control position to the forced operation position while the power is on, the forced operation is carried out. • When the slide switch position is operated at low speed for around 15...
tion condition is set according to the Auto Restarting position or the remote control position, the forced operation is canceled and the appliance stops operating. • In the forced operation mode, the indoor fan is switched from the remote control position to the forced operation position while the power is on, the forced operation is carried out. • When the slide switch position is operated at low speed for around 15...
Service Manual
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... approx. 3 minutes. Service Manual 45 Timer : Lights up and down automatically.(Model base) Deice (defrost) control (Heating) • Both the indoor and outdoor fan stops during deicing. • Hot start Control (Heating) • The indoor fan stops until the evaporator piping temperature will be reached at the starting. Sleep Mode Auto Control • The fan is automatically switched from high to low(Cooling), med(Heating) speed. • The unit will be stopped after deice ends. Sleep Mode : Lights up during Sleep Mode Auto operation. Natural Air Control by CHAOS...
... approx. 3 minutes. Service Manual 45 Timer : Lights up and down automatically.(Model base) Deice (defrost) control (Heating) • Both the indoor and outdoor fan stops during deicing. • Hot start Control (Heating) • The indoor fan stops until the evaporator piping temperature will be reached at the starting. Sleep Mode Auto Control • The fan is automatically switched from high to low(Cooling), med(Heating) speed. • The unit will be stopped after deice ends. Sleep Mode : Lights up during Sleep Mode Auto operation. Natural Air Control by CHAOS...
Service Manual
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... delayed for approx. 3 minutes. Indoor Fan Speed Control • High, Med, Low, CHAOS, JET COOL Operation indication Lamps (LED) On/Off Sleep Mode Timer Defrost Mode Outdoor unit operation : Lights up during the system operation. : Lights up during Sleep Mode Auto operation. : Lights up during Timer operation. : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only) : Lights up and down automatically. Sleep Mode Auto Control • The fan is switched to be stopped while it display Destired temperature indicator • Cooling : 18°C~30°C(64...
... delayed for approx. 3 minutes. Indoor Fan Speed Control • High, Med, Low, CHAOS, JET COOL Operation indication Lamps (LED) On/Off Sleep Mode Timer Defrost Mode Outdoor unit operation : Lights up during the system operation. : Lights up during Sleep Mode Auto operation. : Lights up during Timer operation. : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only) : Lights up and down automatically. Sleep Mode Auto Control • The fan is switched to be stopped while it display Destired temperature indicator • Cooling : 18°C~30°C(64...
Service Manual
Page 48
... direction. 48 Multi type Air Conditioner Signal transmitter 5 1 6 3 4 2 10 CANCEL 7 9 ON OFF SET 11 AUTO CLEAN 16 8 12 °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 select the operation mode. (Heat Pump) (Cooling Only) 3 ROOM TEMPERATURE SETTING BUTTONS Used...
... direction. 48 Multi type Air Conditioner Signal transmitter 5 1 6 3 4 2 10 CANCEL 7 9 ON OFF SET 11 AUTO CLEAN 16 8 12 °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 select the operation mode. (Heat Pump) (Cooling Only) 3 ROOM TEMPERATURE SETTING BUTTONS Used...
Service Manual
Page 65
... the power and then turn on. • Having or not of error code is different from Model. LED1 LED2 Indoor Error Error code Description MPS Variable LED1 00 No Error 01 Indoor Room Thermistor Error 02 Indoor In-Piping Error 05 Communication Error between In and Out 06 Indoor Out-Piping Error 07 Differnt mode operation 10 Indoor fan motor locked error 1 time 2 times 5 times 6 times 7 times LED2 1 times Indoor Status ON OFF OFF OFF OFF OFF OFF Outdoor Error Error code...
... the power and then turn on. • Having or not of error code is different from Model. LED1 LED2 Indoor Error Error code Description MPS Variable LED1 00 No Error 01 Indoor Room Thermistor Error 02 Indoor In-Piping Error 05 Communication Error between In and Out 06 Indoor Out-Piping Error 07 Differnt mode operation 10 Indoor fan motor locked error 1 time 2 times 5 times 6 times 7 times LED2 1 times Indoor Status ON OFF OFF OFF OFF OFF OFF Outdoor Error Error code...
Service Manual
Page 67
Troubleshooting Guide Turn off . Does "Beeping" sound is O.K. • Check CN-DISP1 The operation check of the P.C.B. Ass'y (Fuse, Noise Filter, Power Transformer, IC01D, IC02D, etc.) YES • Primarily, the operating condi- Trouble 1 The Product doesn't operate at all. Turn on outdoor PCB is off the main power and wait until LED on the main power again. former. 2) The output voltage of power transformer. 3) IC01D(7812) 4) IC02D(7805...
Troubleshooting Guide Turn off . Does "Beeping" sound is O.K. • Check CN-DISP1 The operation check of the P.C.B. Ass'y (Fuse, Noise Filter, Power Transformer, IC01D, IC02D, etc.) YES • Primarily, the operating condi- Trouble 1 The Product doesn't operate at all. Turn on outdoor PCB is off the main power and wait until LED on the main power again. former. 2) The output voltage of power transformer. 3) IC01D(7812) 4) IC02D(7805...