LG ARNU Series Service Manual Download Page 119

Page: 119 / 226

Service Manual

119

Checking Method for Key Components

• LEV 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.

Summary of Contents for ARNU Series

Page 1: ...nditioner SERVICE MANUAL R410A LG MODELS ARUN ARUV Series ARNU Series website http www lgservice com CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Page 2: ...2 Nomenclature 14 Outdoor Units Information 15 Indoor Units 17 Ceiling Mounted Cassette Type 4 way 19 Art Cool Type 31 Art Cool Type Wide 45 Ceiling Concealed Duct Type Low static 58 Ceiling Concealed Duct Type High static 68 Outdoor Units 79 Trouble shooting guide 113 Exploded View Replacement Parts List 183 ...

Page 3: ...o do Be sure to follow the instruction WARNING Installation Have all electric work done by a licensed electri cian 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 improperly electric shock and fire may result Ask the d...

Page 4: ...all the unit at the specified place Improper installation may cause the unit to topple and result in injury Do not install the product on a defective installa tion stand It may cause injury accident or damage to the prod uct When installing and moving the air conditioner to another site do not charge it with a differnet refrigerant from the refrigerant specified on the unit If a differnet refriger...

Page 5: ...t when the refrigerant leaks Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded Should the refrigerant leak and cause the safety limit to be exceeded harzards due to lack of oxygen in the room could result Operation Do not damage or use an unspecified power cord There is risk of fire electric shock explosion or injury Use a dedicated outlet for th...

Page 6: ...e electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or prod uct failure Installation 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 unit could damage the neigh borhoods It may cause a problem for y...

Page 7: ...sult in degradation of capacity When installting the unit in a hospital communica tion station or similar place provide surfficient protection against noise The inverter equipment private power generator high frequency medical equipment or radio communication equipment may cause the air conditioner to operate erroneously or fail to operate On the other hand the air conditioner may affect such equi...

Page 8: ...causing property damage product failure and per sonal injury Be very careful about product transportation Only one person should not carry the product if it weighs more than 20 kg Some products use PP bands dor packaging Do not use any PP bands for a means of transportation It is dangerous Do not touch the heat exchanger fins Doing so may cut your fingers When transporting the Outdoor Unit suspend...

Page 9: ...ant piping during and after operation It can cause a burn or frostbite Do not operate the air conditioner with the panels and 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 more than 5 minutes before turning off the main power switch Otherwise it may result in water leakage or other problems...

Page 10: ...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 Nomenclature 14 3 1 Indoor Unit 14 3 2 Outdoor Unit 14 4 Outdoor Units information 15 ...

Page 11: ...HA0 ARNU24GBHA0 High Static BG ARNU28GBGA0 ARNU36GBGA0 ARNU42GBGA0 BR ARNU48GBRA0 Low Static B1 ARNU07GB1G0 ARNU09GB1G0 ARNU12GB1G0 B2 ARNU18GB2G0 ARNU24GB2G0 B1 ARNU07GB1G0 ARNU09GB1G0 ARNU12GB1G0 Built in PBSGB10 PBSGB10 PBSGB10 B2 ARNU18GB2G0 ARNU24GB2G0 PBSGB20 PBSGB20 VE ARNU09GVEA0 ARNU12GVEA0 Ceiling Suspended VJ ARNU18GVJA0 ARNU24GVJA0 With Case CE ARNU07GCEA0 ARNU09GCEA0 ARNU12GCEA0 CF AR...

Page 12: ...S3 0 ARNU07GSP 0 ARNU09GSP 0 ARNU12GSP 0 ARNU18GSV 0 Ceiling Concealed Duct Built in ARNU07GB1G0 PBSGB10 Acc y ARNU09GB1G0 PBSGB10 Acc y ARNU12GB1G0 PBSGB10 Acc y ARNU18GB2G0 PBSGB20 Acc y ARNU24GB2G0 PBSGB20 Acc y ARNU09GVEA0 ARNU12GVEA0 ARNU18GVJA0 ARNU24GVJA0 Floor Standing With case ARNU07GCEA0 ARNU09GCEA0 ARNU12GCEA0 ARNU18GCFA0 ARNU24GCFA0 Without case ARNU07GCEU0 ARNU09GCEU0 ARNU12GCEU0 ARN...

Page 13: ...Service Manual 13 External Appearance 2 2 Outdoor Units ARUN1008F20 10HP ...

Page 14: ...Combinations of functions A Basic function G Low Static Motor L Nano Plasma Wall Mounted C Plasma Ceiling Cassette Q Plasma Low Static Duct ART COOL Type Panel Color B Blue D Wood M Metal R Mirror W White C Cherry ARU N 8 100 F 2 0 Chasiss Type V UV Chassis 1 UV1 Chassis 2 UV2 Chassis Serial Number Air Discharge DirectionS Side Discharge R Right L Left F Both Electrical Ratings 8 3Ø 380 415V 50Hz ...

Page 15: ...tdoor Within 10 100 130 combination ratio cause a reduction of capacity Power Supply Outdoor Unit 3Ø 380 415V 50Hz Heat Pump System HP Model Product Charge kg CF Correction Factor kg Max Connectable No of Indoor Units Net Weight kg lbs Dimensions W H D mm inch Connecting Pipes Liquid Pipes mm inch Gas Pipes mm inch 10 ARUN1008F20 9 5 0 16 350 771 6 1400 1790 650 55 1 70 5 25 6 Ø9 52 3 8 Ø22 2 7 8 ...

Page 16: ...16 ...

Page 17: ...Service Manual 17 Indoor Units ...

Page 18: ...18 Indoor Unit ...

Page 19: ...Service Manual 19 1 Specifications 20 2 Functions 23 3 Operation Details 24 4 Dimensions 26 5 Piping Diagrams 28 6 Wiring Diagrams 29 Ceiling Mounted Cassette Type 4Way ...

Page 20: ...vel 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 ARNU09GTEA0 ARNU12GTEA0 ARNU18GTEA0 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 Galvanized Steel Plate Galvanized Steel Plate 570x570x269 570x570x269 570x570x269...

Page 21: ... 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 ARNU24GTHA0 ARNU28GTHA0 ARNU36GTDA0 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 Plate Galvanized Steel Plate 840x840x255 840x840x255 840x840x288 33 0...

Page 22: ...re 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 ARNU42GTDA0 ARNU48GTDA0 12 300 14 100 10 600 12 100 42 000 48 100 13 800 15 9...

Page 23: ...ain 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 by central control function It is operating swirl swing Ro...

Page 24: ... 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 the setting by the remote con troller and the operation diagram is as following Swirl Swing Control Vane 2 4 is almost vane ...

Page 25: ...The indoor fan does no rotate until the evaporator piping temperature will be reached to 25 C The operation diagram is as 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 A point While the indoor Heat Exchanger temperature is higher than 35 C fan operates at low speed when it becomes lower than 35 C fan stops B point When the indoor...

Page 26: ... 570 Unit size 450 Hanging bolt 75 75 600 Ceiling opening 600 Ceiling opening 521 Hanging bolt 39 5 39 5 4 Dimensions Dimensions 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 grill ...

Page 27: ... 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 Unit mm 4 1 2 950 950 5 6 255 70 4 47 84 139 8 TD TH 3 Dimensions 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 discharge grill 6 Air suction grill ...

Page 28: ...Refrigerant pipe connection port diameter Model ARNU09GTEA0 ARNU12GTEA0 ARNU18GTEA0 ARNU24GTHA0 ARNU28GTHA0 ARNU36GTDA0 ARNU42GTDA0 ARNU48GTDA0 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 29: ...OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN DISP1 DISPLAY DISPLAY OF INDOOR STATUS CN LEV LEV OUTPUT LEV 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 ROOM ROOM SENSOR ROOM THERMISTOR CN REMO REMOTE CONTR...

Page 30: ...30 Indoor Unit ...

Page 31: ...Service Manual 31 1 Specification 32 2 Functions 33 3 Operation Details 34 4 Dimensions 41 5 Piping Diagrams 42 6 Wiring Diagrams 43 Art Cool Type ...

Page 32: ...nch 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 0 ARNU09GSP 0 ARNU12GSP 0 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 570x137x568 570x137x568...

Page 33: ...sing 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 Sleep Mode Lights up during Sleep Mode Auto operation...

Page 34: ...tion 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 setting temp the compressor and the outdoor fan stop...

Page 35: ...ff 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 Defrost Control While in heating mode operation in order t...

Page 36: ... 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 Compressor ON Temp Setting Temp 0 5 C Compressor OFF Temp...

Page 37: ...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 according to the Fuzzy rule While in Fuzzy operation the a...

Page 38: ...s 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 moment the A C starts to blow the cool air with side...

Page 39: ...rom 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 outdoor fan is turned on according to the...

Page 40: ...he 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 operation High Voltage Generator H V B will be...

Page 41: ...0 ARNU09GSP 0 ARNU12GSP 0 Ø 9 52 Ø 6 35 9 12k Gas Liquid Model 1 Pipe Specification mm Note Unit mm Pipe Hole Fix Hole Hanger Hole H W D More than 10cm More than 50cm More than 2m More than 50cm Model ARNU07GSP 0 ARNU09GSP 0 ARNU12GSP 0 W 570 H 568 D 137 ...

Page 42: ...ams Heat Exchanger Turbo Fan lndoor unit LEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter Color M Metal D Wood B Blue W White Model ARNU07GSP 0 ARNU09GSP 0 ARNU12GSP 0 Gas 12 7 1 2 Liquid 6 35 1 4 unit mm inch ...

Page 43: ...N COM COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN LEV LEV OUTPUT LEV 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 ROOM PIPE SENSOR ROOM AND PIPE THERMISTOR CN TH2 DISCHARGE PIPE SENSOR DISCHARGE...

Page 44: ...44 Indoor Unit ...

Page 45: ...Service Manual 45 1 Specification 46 2 Installation 47 3 Operation Details 48 4 Dimensions 55 5 Piping Diagrams 56 6 Wiring Diagrams 57 Art Cool Type Wide ...

Page 46: ...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 Weight kg lbs Noise L...

Page 47: ...mote controller Sensing the Room Temperature Room temperature control Starting Current Control Time Delay Safety 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 Air Control by CH...

Page 48: ...ower 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 setting temp the c...

Page 49: ...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 t...

Page 50: ...ons 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 Compressor ON Temp Setting Temp 0 5 C C...

Page 51: ...atically 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 according to the Fuzzy rule While in Fuz...

Page 52: ...e 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 When the Jet Cool key is input the upp...

Page 53: ... 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 compressor on for 18 min without controlling the r...

Page 54: ...peration 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 operation High Voltage Generator H V B is to be stop...

Page 55: ...ervice Manual 55 Dimensions 4 Dimensions ARNU18GSV 0 H W D Pipe Hole Pipe Hole 240mm 60mm 240mm 60mm More than 10cm More than 50cm More than 2m More than 50cm Model ARNU18GSV 0 W 928 H 522 D 147 Unit mm ...

Page 56: ...iping Diagrams Heat Exchanger Turbo Fan lndoor unit LEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter Color M Metal D Wood B Blue W White Model Gas Liquid ARNU18GSV 0 Ø12 7 1 2 Ø6 35 1 4 unit mm inch ...

Page 57: ...CN COM COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN LEV LEV OUTPUT LEV 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 ROOM PIPE SENSOR ROOM AND PIPE THERMISTOR CN TH2 DISCHARGE PIPE SENSOR DISCHARG...

Page 58: ...58 Indoor Unit 1 Specifications 59 2 Funtion 61 3 Operation Details 62 4 Dimensions 65 5 Piping Diagrams 66 6 Wiring Diagrams 67 Ceiling Concealed Duct Type Low static ...

Page 59: ... 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 Preliminary ARNU07GB1G0 ARNU09GB1G0 ARNU12GB1G0 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 Plate Galvanized Steel Plate 820 x 575 x 190 820 x 575 x 190 820 x...

Page 60: ...erature Control Sound Absorbing Thermal Insulation Material Air Filter Safety Device Liquid Side mm inch Pipe Connections Gas Side mm inch Drain Pipe Outer 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 Preliminary ARNU18GB2G0 ARNU24GB2G0 5 600 7 000 4 800 6 100 19 100 ...

Page 61: ...ain 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 Restarting is inhibited for approx 3 minutes High Med Low Intermittent operation of fan at low speed Al...

Page 62: ...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 the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C COMP ON SET TEMPERATURE 0 5 C COMP O...

Page 63: ...ndoor unit Heat Exchanger temperature 30 C 27 C 20 C 33 C 1min Minimum 3min 1min 3min Setting fan spped Setting fan spped Setting fan spped 40 C ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B 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 fa...

Page 64: ...indoor unit Hex Exchanger temperature reaches 30 C The operation diagram is as following Operation Details ON ON Off Off Low Low 1min 1min Hotstart 30 C Indoor unit Heat Exchanger temperature Setting fan spped Setting fan spped Compressor Outdoor fan Indoor fan 4way Valve ON ...

Page 65: ...op view unit mm unit mm Suitable dimension H is necessary to get a slope to drain as figure C E G D A B 1 100 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 Dimensional Drawings ...

Page 66: ...nger Sirocco Fan lndoor unit LEV Heating Cooling Filter Filter Thermistor Refrigerant pipe connection port diameter MODEL GAS LIQUID ARNU07GB1G A 0 ARNU09GB1G A 0 Ø12 7 1 2 Ø6 35 1 4 ARNU12GB1G A 0 ARNU18GB2G A 0 ARNU24GB2G A 0 Ø15 88 5 8 Ø9 52 3 8 unit mm inch ...

Page 67: ...ERMISTOR CN ROOM ROOM SENSOR YELLOW ROOM THERMISTOR CN REMO REMOTE CONTROLLER WHITE REMOTE CONTROL LINE CN FLOAT FLOAT SWITCH INPUT BLUE FLOAT SWITCH SENSING CN LEV LEV OUTPUT WHITE LEV 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 COMMUNICATION WHITE COMMUNICATION BETWEEN INDOOR AND OUTDOOR CN D PU...

Page 68: ...68 Indoor Unit 1 Specifications 69 2 Funtion 71 3 Operation Details 72 4 Dimensions 75 5 Piping Diagrams 76 6 Wiring Diagrams 77 Ceiling Concealed Duct Type High Static ...

Page 69: ...se 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 Preliminary ARNU18GBHA0 ARNU24GBHA0 ARNU28GBGA0 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 Galvanized Steel Plate Galvanized Steel Plate 882x450x260 882x4...

Page 70: ...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 Preliminary ARNU36GBGA0 ARNU42GBGA0 ARNU48GBRA0 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 Plate Galvanized Steel Plate Galvanized Steel Plate 118...

Page 71: ...andard 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 Restarting is inhibited for approx 3 minutes High Med Low Intermittent operation of fan at low...

Page 72: ...e when the Heating opera tion is OFF or switched to the other operation mode while compress is off While compressor is running it takes 3 5 seconds to switch to another mode 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 Mod...

Page 73: ...ndoor unit Heat Exchanger temperature 30 C 27 C 20 C 33 C 1min Minimum 3min 1min 3min Setting fan spped Setting fan spped Setting fan spped 40 C ON ON ON ON Low Low Low Low Low Off Off Off ON OFF OFF Low fan during 10sec A A B 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 fa...

Page 74: ...indoor unit Hex Exchanger temperature reaches 30 C The operation diagram is as following ON ON Off Off Low Low 1min 1min Hotstart 30 C Indoor unit Heat Exchanger temperature Setting fan spped Setting fan spped Compressor Outdoor fan Indoor fan 4way Valve ON Operation Details ...

Page 75: ... 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 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 hole Suitable dimension H is necessary to get a slope to drain as figure 600X6...

Page 76: ...ilter Thermistor Refrigerant pipe connection port diameter unit mm inch Piping Diagrams MODEL GAS LIQUID ARNU18GBHA0 Ø12 7 1 2 Ø6 35 1 4 ARNU24GBHA0 Ø15 88 5 8 Ø9 52 3 8 ARNU28GBGA0 Ø15 88 5 8 Ø9 52 3 8 ARNU36GBGA0 Ø15 88 5 8 Ø9 52 3 8 ARNU42GBGA0 Ø15 88 5 8 Ø9 52 3 8 ARNU48GBRA0 Ø15 88 5 8 Ø9 52 3 8 ...

Page 77: ...BLDC CN D PUMP DRAIN PUMP OUTPUT AC OUTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN LEV LEV OUTPUT LEV 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 LINE 6 Wiring Diagrams ...

Page 78: ...UTPUT FOR DRAIN PUMP CN COMM COMMUNICATION CONNECTION BETWEEN INDOOR AND OUTDOOR CN LEV LEV OUTPUT LEV 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 LINE CN INFANSUB STARTING SIGNAL CONTROL STARTING SIGNAL CONTR...

Page 79: ...Service Manual 79 Outdoor unit ...

Page 80: ...80 Outdoor Unit 1 Specifications 81 2 Parts 82 3 Dimensions 85 4 Piping Diagrams 86 5 Wiring Diagrams 87 6 Function 90 7 Test Run 104 ARUN Series ...

Page 81: ...t Pump 50Hz HP Model Name Capacity Cooling W kcal h Btu h Heating W kcal h Btu h Input Cooling kW Heating kW Casing Color Heat Exchanger Compressor Type Maker Piston Displacement cm2 rev Number of Revolution r p m Motor Output x Number W Starting Method Oil Type Oil Charge CC Fan Type Motor Output x Number W Air Flow Rate High cmm cfm Drive Discharge Pipe Connctions Liquid Pipes mm inch Gas Pipes ...

Page 82: ...n cold status 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 condenser depending on operation of the indoor unit Used to obtain flow quantity of refrigerant in cold condition Mechanically stop the compressor where the c...

Page 83: ...e HGV Subcooler LEV SLEV Low Pressure Sensor LPS Oil Pass Valve OPV Compressor Discharge Temperature Sensor TCOMP Compressor A n1 COMP Compressor B n2 COMP Outdoor LEV OLEV Subcooler Inlet Temperature Sensor TSIN Subcooler Outlet Temperature Sensor TSIN Heat Exchanger Temperature Sensor THEX 2 1 10HP Parts Layout Drawing sensor etc Parts ...

Page 84: ...rvice Valve Gas Tube Service Valve Service Valve Mount Accumulator Oil Separator Base Pan Air Temperature Sensor TAIR 4 Way Valve 4WAY Strainer High Pressure Switch HPSW Discharge Check Valve DCHK 2 2 10HP Parts Layout Drawing Tool Part Parts ...

Page 85: ...Service Manual 85 2 3 10HP Parts Layout Drawing Control Part Parts Main PCB Fan PCB n1 Inverter PCB n1 Inverter PCB n2 Fan PCB n2 ...

Page 86: ...86 Outdoor Unit 3 Dimensions Dimensions 650 1790 110 75 1114 40 65 136 595 954 676 203 68 197 640 70 65 516 650 1400 1400 1320 1373 Anchor Bolt 1400 ...

Page 87: ...EV Linear Expansion Valve O S Oil Separator Accum Accumulator SC HEX Subcooling Circuit Heat Exchanger Hot Gas Bypass Accum 4 Way Valve Heat Exchanger SC OUT TH OUT HIGH PRESSURE SWITCH D PIPE I TH COMP INV SC IN TH HIGH PRESSURE SWITCH COMP INV SC L TH P SENSOR L S PIPE I TH Liquid Pipe Gas Pipe Service Port D PIPE C TH Service Port O S O S S S INV COMP INV COMP S S S SC HEX SC Drier ...

Page 88: ...88 Outdoor Unit 5 Wiring Diagrams Wiring Diagrams ...

Page 89: ...HOT GAS HOT GAS BYPASS VALVE CN11 OILPASS I NOT USE CN12 OILPASS C NOT USE CN14 MAGNET C MAGNETIC SWITCH CN15 COOLING FAN HEATSINK FAN CN16 LEV OUT LINEAR EXPANSION VALVE MAIN CN17 LEV 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 TRANSMI...

Page 90: ...LOUVER MOTOR 1 LOUVER MOTOR 1 CN_MOTOR 2 LOUVER MOTOR 2 LOUVER MOTOR 2 CN_COMM SIGNAL TO INV PCB TRANSMISSION WITH INVERTER BOARD CN_DCLINK DC LINK DC LINK SW_SEL SELECTION OF AUTOMATIC MANUAL LOUVER SW_DIR DIRECTION DIRECTION OF MOTOR ROTATION CN_M1S CN_M2S LOUVER MOTOR LIMIT S W CN_FAN TO FAN MOTOR CN_SENSOR HALL SENSOR CN_WRITE ONBOARD WRITING ...

Page 91: ...turn control 93 2 2 Defrost control 95 2 3 Oil equalizing control 96 2 4 Stopping operation 96 3 Protection control 97 3 1 Pressure protection control 97 3 2 Discharge temperature control 99 3 3 Inverter protection control 99 3 4 Liquid back control 100 3 5 Phase detection 100 4 Other control 101 4 1 Initial setup 101 4 2 Instant indoor unit checking mode 103 4 3 Emergency operation 104 ...

Page 92: ...nergy save mode 1 3 Main LEV control Main LEV operates with fuzzy control rules to keep the degree of super Heat Superheat about 3 C at the evaporator outlet stable during heating mode The degree of Superheat Tsuction Tevaporation Tsuction temperature at suction pipe sensor C Tevaporation evaporation temperature equivalent to low pressure C 1 4 Fan control The fan motors of the main unit are opera...

Page 93: ...pressure 242 kpa Compressor combination Refer to combination table Normal Sub unit compressor All off Hot gas bypass valve Off High pressure control Full open Off min Running On Suction pipe temp control High pressure control Full open Off min Ending Off Off Fan Keep state Starting Indoor unit Thermo on unit LEV Oil return pulse Keep state Running Oil return operation pulse Keep state Ending Retur...

Page 94: ...rol Base pulse On min Ending Off On Fan Off Starting Indoor unit Thermo on unit LEV Oil return pulse Off Running Oil return operation pulse Off Ending Return to base pulse Thermo off unit LEV Heating close pulse Oil return operation pulse Heating close pulse Inv Compressor Normal Pressure limit 37Hz 37Hz 90Hz 90Hz 20Hz 20Hz 30Hz 30Hz 80Hz 80Hz 20Hz 20Hz Pressure range Low pressure 229 kpa Low pres...

Page 95: ...V Heating close pulse Oil return operation pulse Heating close pulse Function 2 2 Defrost control Start conditions Defrost control starts if one of below conditions are satisfied 1 Case 1 DIP switch 1 2 ON 2 C air temp hex pipe temp 7 C 7 C air temp 2 C hex pipe temp air temp 9 C air temp 7 C hex pipe temp air temp 11 C 2 Case 2 DIP switch 1 or 2 OFF 0 C air temp hex pipe temp 7 C 5 C air temp 0 C...

Page 96: ...cooling mode 2 4 2 Stopping operation on heating mode Inv Compressor Fan Main LEV 4way valve Subcooling LEV 0Hz 0Hz 170 PLS On 35 PLS Operation Component After 15 min from stop off Note Hot gas bypass On After 15 min from stop Off Inv Compressor Fan Main LEV 4way valve Subcooling LEV 0Hz 0Hz 170 PLS Off 35 PLS Operation Component Off Note Hot gas bypass On After 15 min from stop Off ...

Page 97: ...Protection control Stop Stop Pd 3513 kPa Normal control Frequency holding Pd 3186 kPa 10Hz 2sec 5Hz 2sec Pd 3382 kPa Hot gas Fan Compressor Pressure Range Frequency holding Normal control Ps 216 kPa Off Normal control Ps 373 kPa On 10Hz 2sec 5 Hz 2sec Ps 203 kPa before 1min Stop Stop Ps 203 kPa after 1min Hot gas Fan Compressor Pressure Range ...

Page 98: ...top Pd 3513Pa On 5Hz 2sec 5Hz 2sec Pd 3317 kPa Pd 3186 kPa off Normal control Pd Target press 5 Hot gas Fan Compressor Pressure Range Normal control Frequency holding Ps 216 kPa Normal control Ps 242 kPa Off Ps 281 kPa 10Hz 2sec 5Hz 2sec Ps 203 kPa before 1min On Stop Stop Ps 203 kPa after 1min Hot gas Fan Compressor Pressure Range Function ...

Page 99: ...2 C 1 5 down 30 sec After operating in 20 20Hz for 60sec System off restart after 3min ending Td 101 C for 30sec Td 106 C 5 open every control time Td 110 C low press 529kPa Liquid gathering operation heating ending Td 103 C Td 108 C Control LEV to set Subcooler out temp evaporating temp 8 C only heating mode Main LEV 800pls 10pulse 10sec only cooling mode Subcooler LEV Td 85 C Adjust target sucti...

Page 100: ... Tdis Tc 12 C Discharge temperature Indoor unit s LEV Normal SH control Tdis Tc 16 C SH increasing control SH increasing control Tdis Tc 16 C Discharge temperature Outdoor unit s LEV Normal SH control Tdis Tc 17 C Function 3 5 Phase detection Inverter PCB has phase fault detection circuit If a phase is missed error LED red flickers once per second when power is on ...

Page 101: ...value display 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 Model code is displayed 3sec Total capacity including sub units is displayed 2sec Running option save capacity up is Display 2sec 2 is default normal Factory setting 25 is normal normal Refrigerant display Function ...

Page 102: ...ndoor units Auto addressing begins when address red button in Main PCB is pressed for 6 sec During auto addressing 7 segment on main PCB displays 88 After auto addressing the number of indoor units is displayed in 7 segment for 30 sec The address of each indoor unit is displayed on each wired remote controller Push address red button for 6 sec Auto address starts Auto address is in progress max 15...

Page 103: ...nt 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 unit Black button pushed On Off Off On 3 times Red...

Page 104: ...er the system can be run except the defective compressor by backup function To set backup function set DIP switch like following pictures 1 2 3 4 5 6 7 8 Normal A Comp Failure B Comp Failure 1 2 3 4 5 6 7 8 A Comp B Comp A Comp Failed B Comp A Comp B Comp Failed Function ...

Page 105: ... the main power supply and energizing the crankcase heater for more than 6 hours will cause the refrigerant to evaporate increasing the insulation 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 disp...

Page 106: ...106 Outdoor Unit 7 2 1 Location of setting Switch Main PCB 7 Segments Shows setting status SW03M DIP switch 7 2 DIP Switch Setting Test Run ...

Page 107: ...r not Checking the setting of the Outdoor unit The number is sequentially appeared at the 7 segment in 5 seconds after applying the power This number represents the setting condition For example represents R410A 10HP model code Total capacity 2 25 41 1 255 model code Refer to table code 5 10 HP number 0 cooling only 2 heat pump 25 normal 41 R410A model 22 R22 model CAUTION Product may not properly...

Page 108: ... ON OFF 2 Save mode Set 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 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 select the indoor unit that you want to turn on off Push address...

Page 109: ...8 6 5 4 2 1 3 ON OFF 7 Mode locking Cooling mode only Set before applying the power 7 8 6 5 4 2 1 3 ON OFF 8 Mode locking Heating mode only 7 8 6 5 4 2 1 3 ON OFF 9 Backup operation A Comp backup B Comp backup Set before applying the power 7 8 6 5 4 2 1 3 ON OFF ...

Page 110: ... the bag with installation manual Housing in the Main PCB 6 External Static Pressure 12 14 mmAq Insert connector on following table Connector Connector Connector Connector Connector Connector Connector 1 External Static Pressure 0 3 mmAq 2 External Static Pressure 3 6 mmAq 3 External Static Pressure 6 8 mmAq 4 External Static Pressure 8 10 mmAq 5 External Static Pressure 10 12 mmAq CAUTION The pro...

Page 111: ...sor 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 Braze equalizing pipe with nut 9 Braze the suction and discharge pipe with brazing torch to the compressor Cut section 10 Conduct ai...

Page 112: ...112 Outdoor Unit ...

Page 113: ...Service Manual 113 Trouble shooting guide ...

Page 114: ...omponent failure 113 2 Checking Method for Key Components 2 1 Compressor 114 2 2 Fan Motor 115 2 3 Linear Expansion Valve 116 2 4 3Phase Bridge Diode 119 2 5 IPM Integrated Power Module 120 2 6 Other 121 3 Self diagnosis function 122 Trouble shooting guide ...

Page 115: ...lt Motor failure bad ventilation around outdoor heat exchanger Bad connector contact Coil failure LEV clogged LEV clogged Check resistance between terminals and chassis Check resistance between terminals and chassis Check wiring R S T sequence or inter change last two phase connection Check the outdoor fan operation after being turned the outdoor units off for some time Remove obstacles around the...

Page 116: ...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 appears again when starting o...

Page 117: ...rews 4 Check connection of polarity 5 Check short circuit and grounding Measure winding resistance of the motor coils 8 9Ω 5 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 speci fied in above 1 through 4 Carefully check both connector and grounding w...

Page 118: ...ot operate smoothly and start vibrating LEV 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 is set to If valve is operated smoothly no ...

Page 119: ...nts LEV 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 120: ...nal red white red yellow red orange red blue 2 If the estimated resistance value is in 52 3Ω then the LEV is normal Replace LEV 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 LEV is normal Replace LEV Indoor unit 1 Operate indoor unit with FAN mode and operate another indoor unit ...

Page 121: ...ti 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 electrical parts it should be checked that the LED 01Y in ...

Page 122: ...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 each pair of terminal U P V P W P N U N V N W...

Page 123: ...en 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 that the LED 01Y turned off wait 3 minutes after main...

Page 124: ...oor unit PCB Outlet pipe temperature sensor of indoor unit is open or short Operation mode between indoor unit and outdoor unit is different Malfunction of indoor LEV Indoor unit related error 2 2 2 2 2 1 2 3 4 5 3 3 3 3 2 3 4 5 DC peak Overcurrent of inverter comp Poor voltage charge for driving INV compressor High pressure switch Low Over voltage Discharge temperature INV compressor A Discharge ...

Page 125: ...uction temperature sensor of main outdoor unit Discharge tempeature sensor of inverter compressor B Temperature sensor of Lower part heat exchanger Outdoor voltage sensing error Display Title Cause of Error 4 4 4 4 4 4 4 4 4 4 0 1 2 3 4 5 6 7 8 9 5 5 5 5 5 6 6 1 2 3 4 7 2 5 Excessive connection of indoor units compared to capacity of outdoor unit Failing to receive inverter signal at main PCB Fail...

Page 126: ...r driver Failing to receive main signal at fan PCB Liquid pipe temperature sensor is open or short Subcooling inlet temperature sensor is open or short Subcooling outlet temperature sensor is open or short Pressure unbalance between outdoor units Transmission error fan PCB main PCB Over current of fan motor IPM fault Low voltage of fan motor driver Transmission error main PCB fan PCB Liquid pipe t...

Page 127: ... the LED blinking counts are indication Communication error between Indoor Unit and the Wired Remote Controller Error Code Error Contents Meaning Main Causes Error display position 03 In case the wired Remote Controller cant receive the the signal from the Indoor Unit Concerned Remote Controller Panel Display 1 Defective wired Remote controller 2 Defective Indoor Unit PCB 3 Defective Connector con...

Page 128: ...king properly then check the 220V power supply at the drain pump terminal with a tester In case the drain pump do not function properly after power supply to the to the PCB then replace the drain pump 3 In case of no power at the PCB terminal then replace the Indoor Unit PCB 4 In case the drain pump is OK then check whether the hose is chocked or the drain pipe is improper and make sure to correct...

Page 129: ...ck the cause and put the power On Cause Comp electric leakage or damage ELB breaker defect electric short between the power line etc 3 Check whether the outdoor control box communication wire is connected properly at the terminal 4 Check whether the communication wire is open or short in such a case remove the defect cause Wire open confirmation After power Off short the communication wire with ea...

Page 130: ...ing counts of the Indoor Unit panel Auto Addressing must be operated after minimum 1 minute of power On Check the Indoor Unit not having Auto Addressing and replace the concerned unit PCB if required 2 Make sure to separate the communication wire and the power line AC220 380V by a distance of minimum 30 cm CAUTION In case you replace the communication wire by power 220V line then the connected PCB...

Page 131: ...Service Manual 131 Troubleshooting Guide Short the communication wire with each other Terminal A B Communication terminal between outdoor indoor ...

Page 132: ...Troubleshooting Guide 132 Indoor Unit Measure resistance Communication terminal In the indoor Communication wire terminal in the outdoor Communication wire terminal in the indoor ...

Page 133: ...or Code Error Contents Meaning Main Causes Error display position 09 Problem developed in the EEPROM inside the PCB of the Indoor Unit Concerned Remote controller Panel Display 1 Error developed in communication between the Microprocessor and the EEPROM on the surface of the PCB 2 ERROR due to the EEPROM damage Defect inspection method 1 Error removal method Press the On Off button on the Wired Re...

Page 134: ... Disconnected or crushed wired 2 Remove housing terminal 1 Remove motor connector PCB indoor unit Unlock by reassembling etc Turn the fan with hand and check whether it is locked 1 Check with naked eye 2 Check with naked eye 3 Check with naked eye Repair or exchange motor Exchange motor Check the resistance value of each terminal with the tester Check the resistance of both ends of the capacitor N...

Page 135: ...ed error Error Code Error Contents Meaning Main Causes Error display position 11 Outdoor unit cannot recognize the indoor unit Concerned Remote controller Panel Display Auto addressing does not work after exchanging to new PCB Auto addressing for outdoor unit ...

Page 136: ...U P V P W P measurement 0 3 0 6 V Reverse polarity measurement Above 2 6 V N U N V N W measurement 0 3 0 6 V Reverse polarity measurement Above 2 6 V 3 phase rectification diode sequential measurement 0 3 0 6 V Reverse polarity measurement Above 2 6V 3 Check whether the input voltage is 360V 410V AC 4 Check the balance between each phase at the main breaker of the building phase distribution Below...

Page 137: ...Service Manual 137 Troubleshooting Guide Resistance measure between phases of compressor ...

Page 138: ...Troubleshooting Guide 138 Outdoor Unit Resistance measure between phase and body of compressor Check IPM 3 phase rectification Diode P U V W ...

Page 139: ...Service Manual 139 Troubleshooting Guide Check IPM 3 phase rectification Diode U V W N Check 3 phase rectification diode ...

Page 140: ...Troubleshooting Guide 140 Outdoor Unit Check 3 phase rectification diode Measure input power between phases R S R T S T ...

Page 141: ...Service Manual 141 Troubleshooting Guide Measure input power of one phase R S T Connector of compressor ...

Page 142: ...Troubleshooting Guide 142 Outdoor Unit Connector of reactor Connectors of 3phase diode ...

Page 143: ...Service Manual 143 Troubleshooting Guide Connectors of capacitor Check IPM PCB ...

Page 144: ...Troubleshooting Guide 144 Outdoor Unit Measure current of IPM U V W Measure voltage of IPM P N ...

Page 145: ... PCB 2 In case the current is above 18 20A check the comp insulation and the motor coil resistance Refer error code 21 In case the resistance is abnormal then replace the comp 3 Check whether the Main input power is 360Vac 410Vac Check whether a deviation exists between the main power voltage of each phase Below 5 10V In case there is a deviation in the required power supply in each phase or the a...

Page 146: ...actor at the control box are normal After about 30 seconds of operation the voltage at the IPM P N terminal should be above 450Vdc 2 In case the voltage is below 450Vdc Make sure that the outdoor main input voltage is 360Vac 410Vac Make sure that the magnetic contactor coil resistance 400 700Ω when the power is Off and also check the connecting conditions Check whether the comp capacitor connectio...

Page 147: ...Service Manual 147 Troubleshooting Guide Measure resistance of magnetic contactor coil Capacitor of compressor Inverter IPM P N connector of IPM ...

Page 148: ...ion as per the required heat exchange In case of heat exchanger covering please remove the outdoor condenser covering and also check the Indoor Unit filter 3 Is the actual pressure reached high enough for the high pressure switch to be operational Connect the manifold gauge at the high pressure service valve and compare the value of the high pressure sensor 4 Check whether the SVC valve is open an...

Page 149: ...Service Manual 149 Troubleshooting Guide SVC valve Measure resistance on the pressure switch connector ...

Page 150: ...Troubleshooting Guide 150 Outdoor Unit Pressure switch CHECK VALVE ...

Page 151: ...am age 3 Outdoor Unit main PCB defect Defect inspection method 1 Check whether the input power 3 phase 380V 10 415 10 single phase 220V 10 240 10 In case there is a deviation from the required power in each phase or is not the rated voltage then please request the building electricity in charge to supply the required power 2 Check whether the Outdoor Unit PCB power input is 220V 10 240 10 Otherwis...

Page 152: ...Troubleshooting Guide 152 Outdoor Unit Measure power input of outdoor unit ...

Page 153: ...Service Manual 153 Troubleshooting Guide Measure power input of outdoor unit ...

Page 154: ...eplace the outdoor MAIN PCB 2 Check the indoor outdoor LEV Hot gas Liquid Injection valve connector connecting condition Excessive rise of the inverter comp B discharge temp Error Code Error Contents Meaning Main Causes Error display position 33 Inverter comp Off due to the excessive rise in dis charge temp Concerned Remote con troller Panel Display Outdoor unit 1 Inverter comp discharge temp sens...

Page 155: ...sistance LEV normalcy Resistance between each terminal of the LEV 45 90Ω hot gas liquid injection In case the coil R is normal then please check LEV Hot Gas Liquid Injection Bypass Valve 4 Recalculate the amount of refrigerant to be charged and check the charging condition Hot gas by pass connector ...

Page 156: ...Troubleshooting Guide 156 Outdoor Unit Liquid injection by pass valve ...

Page 157: ...Service Manual 157 Troubleshooting Guide Measure resistance of LEV coil ...

Page 158: ...Troubleshooting Guide 158 Outdoor Unit Heater ...

Page 159: ...llation condition to get the proper heat exchange Remove the outdoor cover by dust etc if any and also check the Indoor Unit filter also 3 Check the SVC valve Open and pipe condition bent dent etc 4 Check whether the actual discharge pressure is high Connect the manifold gauge to the svc valve and compare the high pressure reading 5 Check the Indoor Outdoor Unit LEV connector connecting condition ...

Page 160: ...ion to get the proper heat exchange Remove the outdoor cover by dust etc if any and also check the Indoor Unit filter also 3 Check the SVC valve open and pipe condition bent dent etc 4 Check whether the actual low pressure is excessively low Connect the manifold gauge to the svc valve and compare the low pressure reading 5 Check the Indoor Outdoor Unit LEV connector connecting condition 6 Check th...

Page 161: ...pe temp sensor of the comp Open Short 3 Defective outdoor PCB Defect inspection method 1 Check the comp discharge pipe temp sensor and the lead wire connecting condition 2 Check whether the sensor resistance value is normal Otherwise replace the sensor Comp discharge pipe temp sensor 10 C 362kΩ 25 C 200kΩ 50 C 82kΩ 100 C 18 5kΩ 3 In case the sensor connecting condition and the resistance value are...

Page 162: ...Troubleshooting Guide 162 Outdoor Unit Check discharge temp sensor of inverter compressor Check discharge temp sensor of constant compressor ...

Page 163: ...rror Error Code Error Contents Meaning Main Causes Error display position 43 Sensor measured value is not normal Open Short Concerned Remote con troller Panel Display Outdoor unit 1 Defective high pressure sensor connector 2 Defective high pressure sensor error Open Short 3 Outdoor PCB defect Defect inspection method 1 Check the pressure sensor connecting condition and lead wire connecting conditi...

Page 164: ...Troubleshooting Guide 164 Outdoor Unit Pressure sensor connector High pressure sensor Low pressure sensor ...

Page 165: ...splay Outdoor unit 1 Defective connection of the temp sensor 2 Defective temp sensor Open Short 3 Defective Outdoor Unit PCB Comp suction temp sensor error Error Code Error Contents Meaning Main Causes Error display position 46 Sensor measured value is not normal Open Short Concerned Remote con troller Panel Display Outdoor unit 1 Defective connection of the temp sensor 2 Defective temp sensor Ope...

Page 166: ...Outdoor Unit Measure resistance of outdoor air temperature sensor Measure resistance of outdoor air temperature sensor Measure resistance of outdoor HEX A temperature sensor Measure resistance of outdoor HEX B temperature sensor ...

Page 167: ...ler 1 Abnormal input voltage 2 Outdoor line fuse damage 3 Defective outdoor main PCB Defect inspection method 1 Check whether the input power 3 phase 380 10 415 10 single phase 220 10 240 10 is normal In case of any deviation in supplied power or the rated power please request the the electric in charge of the building to supply the suitable power 2 Is the power input to the the outdoor PCB 220 10...

Page 168: ...Troubleshooting Guide 168 Outdoor Unit Measure input power of outdoor unit ...

Page 169: ...ation cable mixed up or confused Defect inspection method 1 Check the total capacity of the all indoor units and compare it with the 130 of the capacity of the outdoor unit 2 Check whether the communication cable of some of the indoor unit is connected to some other outdoor unit Refer to CH05 3 Please operate the Auto Addressing 4 In case the error code is still in display even when the above give...

Page 170: ...fuse is damaged 4 Defective outdoor Main inverter PCB Defect inspection method 1 Check whether the communication cable connection is normal Otherwise check the communication cable and replace if required 2 Check whether the Outdoor Main inverter PCB is working on power input Check whether the PCB orange color LED is blinking if the power input and the communication is normal then the LED is blinki...

Page 171: ...he error code is displayed when the defective PCB is connected to the indoor unit Replace the concerned indoor unit s PCB 4 In case one indoor or a few indoor has CH53 error display Re operate the Auto Addressing and check whether the all indoor units have Auto Addressing setting After the power ON make sure to operate the Auto Addressing after one minute In case the any PCB has not got the Auto A...

Page 172: ...Troubleshooting Guide 172 Outdoor Unit Check main fuse of out door unit ...

Page 173: ...k fan power sup ply terminal Defect inspection method 1 Check whether the heat sink cooling fan is normal Check the power supply connector to the cooling fan of the heat sink on the upper side of the Main PCB is 12Vdc Always operating when the inverter comp is operating Also check the heat sink cooling fan Lead Wire 2 Check whether the air is coming out from the cooling fan of the heat sink on the...

Page 174: ... the Inverter PCB and the fan PCB Error Code Error Contents Meaning Main Causes Error display position 105 108 Communication error between the Inverter PCB and the fan PCB Fan outdoor outdoor fan Concerned Remote Controller Outdoor Unit 1 Defective communication Cable connection 2 Communication cable Open Short 3 Defective outdoor PCB 4 Defective fan PCB Communication connector LED between inverte...

Page 175: ... 2 Fan Lock 3 Defective heart sink Defect inspection method 1 Check the fan motor connector connection 2 Is outdoor fan in Fan Lock condition Otherwise remove the LOCK causing obstacle stick etc 3 Check the heat sink fan operation Refer to CH62 4 In case all of the above contents are normal and still the error code is displayed then please replace the fan IPM PCB 5 In case the error code still per...

Page 176: ...Troubleshooting Guide 176 Outdoor Unit Fan IPM ...

Page 177: ... Abnormal fan PCB input power 4 Fan PCB defect Defect inspection method 1 Check the fan PCB DC link voltage lead wire connecting condition 2 Check Fan PCB input power voltage normal rated 10 3 Check whether the fan PCB Capacitor ahs any abnormality In case it is abnormal then outer shape is deformed outer shape expansion 4 In case of Capacitor abnormality replace the fan PCB 5 In case the error co...

Page 178: ...Troubleshooting Guide 178 Outdoor Unit Measure input power of fan main PCB ...

Page 179: ...Abnormal value of the sen sor measurement Open Short Concerned Remote Controller Outdoor unit 1 Defective temp sensor connector connection 2 Defective temp sensor Open Short 3 Defective outdoor PCB Defect inspection method 1 Check the temp sensor connector connecting condition and lead wire 2 Is the temp sensor resistance value normal Otherwise replace the sensor Pipe temp sensor 10 C 10kΩ 25 C 5k...

Page 180: ...hooting Guide 180 Outdoor Unit Sub cool circuit in the outdoor unit Measure resistance of LEV coil Measure temp sensor of liquid pipe Measure temp sensor of sub cool outlet Measure temp sensor of sub cool inlet ...

Page 181: ...Defect inspection method 1 Check whether the piping between the outdoor units is normal liquid pipe should be connected to liquid pipe common pipe be connected to common pipe fi Pipe modifica tion 2 Check whether the Main Sub outdoor compressor is damaged or not Refer to CH21 3 Please confirm the Main PCB s 4way valve terminal voltage 220V 10 In case of abnormal voltage please replace the outdoor ...

Page 182: ...Troubleshooting Guide 182 Outdoor Unit 4way valve in the outdoor unit 4way valve connector on the Main PCB ...

Page 183: ...Service Manual 183 Exploded View Replacement Parts List ...

Page 184: ... Unit Explodede View Replacement Parts List 7 Exploded View Replacement Parts List 352118 55211G 330870 268714 268713 249951 135511 263230 1 263230 2 263230 3 158580 266012 158591 55211G 354211 TE Standard model ...

Page 185: ...Service Manual 185 Explodede View Replacement Parts List 352118 55211G 330870 268714 268713 249951 135511 263230 1 263230 2 263230 3 158580 266012 158591 55211G 354211 266090 159830 TE Plasma model ...

Page 186: ...186 Indoor Unit Explodede View Replacement Parts List 130412 152510 2 140570 130911 1 130911 2 130911 3 152510 1 W1BZZ 359012 346810 ...

Page 187: ...251AP2984A 266090 HVPS DC DC 6609A20009J 6609A20009J 6609A20009J 140570 LOCKER ASSEMBLY 4A01405H 4A01405H 4A01405H 4A01405H 4A01405H 4A01405H 346810 MOTOR ASSEMBLY INDOOR 4681A20168B 4681A20168B 4681A20168B 4681A20168B 4681A20168B 4681A20168B 158591 PUMP ASSEMBLY WATER 5859A10007A 5859A10007A 5859A10007A 5859A10007A 5859A10007A 5859A10007A 158580 PUMP WATER 5858A10001G 5858A10001G 5858A10001G 5858...

Page 188: ...or Unit Explodede View Replacement Parts List 188 Indoor Unit 130412 352114 263230 2 352118 352115 249941 263230 1 352114 268714 249951 135511 668713 263230 3 W6640 55211G 330870 2 330870 1 TH TD Standard model ...

Page 189: ...ual 189 Explodede View Replacement Parts List 130412 352114 263230 2 352118 352115 249941 159830 266090 263230 1 352114 268714 249951 135511 668713 249941 263230 3 W6640 55211G 330870 2 330870 1 TH TD Plasma model ...

Page 190: ...190 Indoor Unit Explodede View Replacement Parts List 190 Indoor Unit 130412 346810 152510 2 359012 130911 4 130911 3 152510 1 140570 W0CZZ TH TD 130911 4 130911 2 W1BZZ 349600 W6851 130911 1 349600 ...

Page 191: ... DRAIN 5251A10003A 5251A10003A 5251A10003A 5251A10003A 152510 2 HOSE ASSEMBLY DRAIN 5251AP2984C 5251AP2984C 5251AP2984C 5251AP2984C 266090 HVPS DC DC 6609A20009L 6609A20009L 140570 LOCKER ASSEMBLY 4A01405C 4A01405C 4A01405C 4A01405C 346810 MOTOR ASSEMBLY INDOOR 4681A20168A 4681A20168A 4681A20168A 4681A20168A 349480 ORIFICE 4948A20039A 4948A20039A 4948A20039A 4948A20039A 158591 PUMP ASSEMBLY WATER ...

Page 192: ...E ASSEMBLY DRAIN 5251A10003B 5251A10003B 5251A10003B 5251A10003B 152510 2 HOSE ASSEMBLY DRAIN 5251AP2984C 5251AP2984C 5251AP2984C 5251AP2984C 266090 HVPS DC DC 140570 LOCKER ASSEMBLY 4A01405C 4A01405C 4A01405C 4A01405C 346810 MOTOR ASSEMBLY INDOOR 4681A20172A 4681A20172A 4681A20172A 4681A20172A 349600 MOUNT ASSEMBLY MOTOR INDOOR 4961A20038A 4961A20038A 4961A20038A 4961A20038A 349480 ORIFICE 4948A2...

Page 193: ...251A10003B 5251A10003B 5251A10003B 152510 2 HOSE ASSEMBLY DRAIN 5251AP2984C 5251AP2984C 5251AP2984C 5251AP2984C 266090 HVPS DC DC 6609A20009L 6609A20009L 6609A20009L 6609A20009L 140570 LOCKER ASSEMBLY 4A01405C 4A01405C 4A01405C 4A01405C 346810 MOTOR ASSEMBLY INDOOR 4681A20172A 4681A20172A 4681A20172A 4681A20172A 349600 MOUNT ASSEMBLY MOTOR INDOOR 4961A20038A 4961A20038A 4961A20038A 4961A20038A 349...

Page 194: ...Indoor Unit Explodede View Replacement Parts List 194 Indoor Unit TJ 352510 2 263230 2 263230 3 352116 352115 330870 346810 152312 2 263230 1 359011 352510 1 159591 130911 268713 266012 249951 268714 266090 ...

Page 195: ...A20001K 6601A20001K 6601A20001K 268713 PCB ASSEMBLY SUB 6871A20712A 6871A20712A 6871A20712A 268714 PCB ASSEMBLY MAIN 6871A10231M 6871A10231N 6871A10231P 330870 PAN ASSEMBLY DRAIN 3087A10033A 3087A10033A 3087A10033A 346810 MOTOR UNCLASSIFIED 4681A20091K 4681A20091K 4681A20091K 352115 TUBE ASSEMBLY EXPANSION 5211A29909A 5211A29909A 5211A29909A EVA IN 352116 TUBE ASSEMBLY MENIFOLD INDOOR 5211A29910A ...

Page 196: ...H ASSEMBLY 6601A20001K 6601A20001K 6601A20001K 266090 HVPS DC DC 6609A20009P 6609A20009P 6609A20009P 268713 PCB ASSEMBLY SUB 6871A20712A 6871A20712A 6871A20712A 268714 PCB ASSEMBLY MAIN 6871A10231M 6871A10231N 6871A10231P 330870 PAN ASSEMBLY DRAIN 3087A10033A 3087A10033A 3087A10033A 346810 MOTOR UNCLASSIFIED 4681A20091K 4681A20091K 4681A20091K 352115 TUBE ASSEMBLY EXPANSION 5211A29909A 5211A29909A...

Page 197: ...t Parts List SP 135515 135500 3 268714 1 268714 2 147581 359012 349600 352380 146811 146811 147581 346810 147581 268712 135500 1 131410 354210 135500 2 146811 152302 268717 330870 135312 135314 159830 249951 352116 352115 263230 1 263230 2 352150 ...

Page 198: ...983A20007T 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20518G 4995A20518E 4995A20518F 263230 1 THERMISTOR ASSEMBLY 6323A20004J 6323A20004J 6323A20004J 263230 2 THERMISTOR ASSEMBLY 6323AQ3226W 6323AQ3226W 6323AQ3226W 268712 PWB PCB ASSEMBLY DISPLAY 6871A20462A 6871A20462A 6871A20462A 268714 1 PWB PCB ASSEMBLY MAIN 6871A20380A 6871A20380A 6871A20380A 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20700S 6871A20...

Page 199: ...68714 1 268714 2 147582 135311 1 146811 1 135500 3 146811 1 352380 2 352380 1 131410 147582 135311 2 135500 2 135311 3 147581 354210 352150 35211B 268712 135314 349490 330870 135500 1 346810 1 359012 1 346810 2 359012 2 146811 1 135312 152302 352115 159830 352116 352110 ...

Page 200: ... 152302 FILTER MECH A C 5230A10011A 159830 AIR CLEANER ASSEMBLY 5983A20006P 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10098S 263230 THERMISTOR ASSEMBLY 6323A20004J 6323AQ3226T 266090 H V ASSEMBLY 6609A10008A 268712 PWB PCB ASSEMBLY DISPLAY 6871A20462A 268714 1 PWB PCB ASSEMBLY MAIN 6871A20380F 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20380F 330870 DRAIN PAN ASSEMBLY 3087A20013B 346810 MOTOR ASSEMBLY I...

Page 201: ...ervice Manual 201 Explodede View Replacement Parts List B1 152302 336600 2 359012 346810 2 346810 1 336600 1 263230 1 263230 2 263230 3 158591 352150 352118 354210 330870 268714 1 249951 268714 2 55211G ...

Page 202: ...SING MECH WRAPPER 3660A20060A 3660A20060A 3660A20060A 346810 1 MOTOR ASSEMBLY INDOOR 4681A20091L 4681A20091L 4681A20091L 346810 2 MOTOR ASSEMBLY INDOOR 4681A20198A 4681A20198A 4681A20198A 158591 PUMP ASSEMBLY BLOWER 5859A10008A 5859A10008A 5859A10008A 268714 1 PWB PCB ASSEMBLY MAIN 6871A10354C 6871A10354C 6871A10354C 268714 2 PWB PCB ASSEMBLY MAIN 6871A20740A 6871A20740B 6871A20740C 263230 1 THERM...

Page 203: ...Service Manual 203 Explodede View Replacement Parts List B2 152302 336600 1 263230 1 263230 2 263230 3 158591 330870 359012 352150 352118 354210 268714 1 249951 268714 2 55211G 336600 2 346810 ...

Page 204: ...using Wrapper 3660A20060A 3660A20060A 346810 Motor Assembly DC Indoor 4681A20198A 4681A20198A 330870 Pan Drain 3086A20039A 3086A20039A 268714 1 PCB Assembly Main 6871A10354C 6871A10354C 268714 2 PCB Assembly Main 6871A20740E 6871A20740G EEP ROM PCB 158591 Pump Assembly Water 5859A10008A 5859A10008A 263230 1 Thermistor NTC 6323AQ3226R 6323AQ3226R RED EVA OUT 263230 2 Thermistor NTC 6323A10002A 6323...

Page 205: ...Service Manual 205 Explodede View Replacement Parts List 359012 354210 352115 152302 352118 330870 268714 1 249951 336600 2 263230 3 263230 1 336600 1 266012 158591 158580 263230 2 346810 268714 2 BH ...

Page 206: ...TOR ASSEMBLY INDOOR 4681A20197A 4681A20197A 4681A20197A 158591 PUMP ASSEMBLY WATER 5859A20002C 5859A20002C 5859A20002C 158580 PUMP WATER 5858A10001L 5858A10001L 5858A10001L 268714 1 PWB PCB ASSEMBLY MAIN 6871A10354C 6871A10354C 6871A10354C 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20911H 6871A20911G 6871A20911F 266012 SWITCH ASSEMBLY FLOAT 6601A20001L 6601A20001L 6601A20001L 263230 1 THERMISTOR ASSEM...

Page 207: ... Manual 207 Explodede View Replacement Parts List 359012 354210 35211G 152302 352118 268714 1 249951 336600 2 263230 3 263230 1 336600 1 266012 158591 158580 263230 2 268714 3 268714 2 346810 346810 359012 BG ...

Page 208: ...9B 4681A20169B 158591 PUMP ASSEMBLY WATER 5859A20002C 5859A20002C 5859A20002C 158580 PUMP WATER 5858A10001L 5858A10001L 5858A10001L 268714 1 PWB PCB ASSEMBLY MAIN 6871A10354C 6871A10354C 6871A10354C 268714 2 PWB PCB ASSEMBLY MAIN AC 6871A20912A 6871A20912A 6871A20912A 268714 3 PWB PCB ASSEMBLY MAIN DC 6871A20911E 6871A20911D 6871A20911C EEPROM PCB 266012 SWITCH ASSEMBLY FLOAT 6601A20001L 6601A2000...

Page 209: ...Service Manual 209 Explodede View Replacement Parts List BR 55211G 158580 158591 152302 330870 268714 1 268714 3 268714 2 249951 346810 359012 266012 336600 2 336600 1 352118 263230 1 263230 2 263230 3 ...

Page 210: ... 346810 MOTOR ASSEMBLY INDOOR 4681A20169B 158591 PUMP ASSEMBLY WATER 5859A20002C 158580 PUMP WATER 5858A10001L 268714 1 PWB PCB ASSEMBLY MAIN 6871A10354C 268714 2 PWB PCB ASSEMBLY MAIN AC 6871A20912A 268714 3 PWB PCB ASSEMBLY MAIN DC 6871A20911K EEPROM PCB 266012 SWITCH ASSEMBLY FLOAT 6601A20001L 263230 1 THERMISTOR ASSEMBLY 6323AQ3226V PIPE OUT 263230 2 THERMISTOR ASSEMBLY 6323AQ3226E PIPE IN 263...

Page 211: ...rvice Manual 211 Explodede View Replacement Parts List SE1 Standard 152302 342800 263230 2 263230 1 359011 131410 733010 135312 135311 159901 146811 346810 135516 35211B 352150 268713 354210 249951 268714 ...

Page 212: ... Indoor Unit Explodede View Replacement Parts List SE1 Plasma 152302 342800 263230 2 263230 1 359011 131410 733010 135312 135311 159901 146811 346810 266090 135516 35211B 352150 354210 159830 249951 268714 ...

Page 213: ...ce Manual 213 Explodede View Replacement Parts List S5 Standard 152302 342800 263230 2 263230 1 359011 131410 733010 135312 135311 159901 146811 346810 135516 35211B 352115 352150 268713 354210 249951 268714 ...

Page 214: ... Unit Explodede View Replacement Parts List S5 Plasma 152302 342800 263230 2 263230 1 359011 131410 733010 135312 135311 159901 146811 346810 266090 135516 35211B 352115 352150 268713 354210 249951 268714 159830 ...

Page 215: ...AQ3226T 6323AQ3226T EVA OUT RED 263230 2 THERMISTOR ASSEMBLY 6323A20004G 6323A20004G 6323A20004G AIR EVAIN BLACK 266090 H V ASSEMBLY 6609A10008A 268712 PWB PCB ASSEMBLY DISPLAY 6871A20680D 6871A20680C 6871A20680D 268714 PWB PCB ASSEMBLY MAIN 6871A20902H 6871A20902H 6871A20902F 342800 BEARING 4280A20004B 4280A20004B 4280A20004B 346810 MOTOR ASSEMBLY INDOOR 4681A20091J 4681A20091J 4681A20091J 35211B...

Page 216: ...23AQ3226T 6323AQ3226T EVA OUT RED 263230 2 THERMISTOR ASSEMBLY 6323A20004G 6323A20004G 6323A20004G AIR EVAIN BLACK 266090 H V ASSEMBLY 6609A10008A 6609A10008A 268712 PWB PCB ASSEMBLY DISPLAY 6871A20680C 6871A20680D 6871A20680C 268714 PWB PCB ASSEMBLY MAIN 6871A20902F 6871A20902J 6871A20902J 342800 BEARING 4280A20004B 4280A20004B 4280A20004B 346810 MOTOR ASSEMBLY INDOOR 4681A20091J 4681A20091J 4681...

Page 217: ...20004G 6323A20004G 6323A20004G 6323A20004G AIR EVAIN BLACK 266090 H V ASSEMBLY 6609A10008A 6609A10008A 268712 PWB PCB ASSEMBLY DISPLAY 6871A20681D 6871A20681C 6871A20681D 6871A20681C 268714 PWB PCB ASSEMBLY MAIN 6871A20902B 6871A20902B 6871A20902A 6871A20902A 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A 346810 MOTOR ASSEMBLY INDOOR 4681A20091J 4681A20091J 4681A20091J 4681A20091J ...

Page 218: ...Explodede View Replacement Parts List 218 Indoor Unit 218 Indoor Unit SE1 ARTCOOL DELUXE 342800 263230 1 263230 2 359011 131410 733010 135312 135311 346810 266090 135516 35211B 352115 354210 249951 268714 152302 146811 ...

Page 219: ...ASSEMBLY DISCHARGE INDOOR 3531A10373A 3531A10373A 3531A10373A 145811 MOTOR DC 4681A20055A 4681A20055A 4681A20055A 249951 CASE ASSEMBLY CONTROL INDOOR 4995A22014N 4995A22014N 4995A22014N 268714 PCB ASSEMBLY MAIN 6871A20932E 6871A20932E 6871A20932E 152302 FILTER MECH A C 5230A20064A 5230A20064A 5230A20064A 733010 PLATE ASSEMBLY INSTALLATION 3301A20020A 3301A20020A 3301A20020A 135312 GRILLE ASSEMBLY ...

Page 220: ... 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10373A 3531A10373A 3531A10373A 145811 MOTOR DC 4681A20055A 4681A20055A 4681A20055A 249951 CASE ASSEMBLY CONTROL INDOOR 4995A22014P 4995A22014P 4995A22014P 268714 PCB ASSEMBLY MAIN 6871A20932C 6871A20932C 6871A20932C 152302 FILTER MECH A C 5230A20064A 5230A20064A 5230A20064A 733010 PLATE ASSEMBLY INSTALLATION 3301A20020A 3301A20020A 3301A20020A 135312 G...

Page 221: ...ASSEMBLY DISCHARGE INDOOR 3531A10373A 3531A10373A 3531A10373A 145811 MOTOR DC 4681A20055A 4681A20055A 4681A20055A 249951 CASE ASSEMBLY CONTROL INDOOR 4995A22014Q 4995A22014Q 4995A22014Q 268714 PCB ASSEMBLY MAIN 6871A20932A 6871A20932A 6871A20932A 152302 FILTER MECH A C 5230A20064A 5230A20064A 5230A20064A 733010 PLATE ASSEMBLY INSTALLATION 3301A20020A 3301A20020A 3301A20020A 135312 GRILLE ASSEMBLY ...

Page 222: ... 1 552201 2 W52240 1 159910 55211G 2 W52240 3 552200 2 165010 1 552116 552203 2 552203 1 W52240 2 552204 1 561410 3 552204 1 561410 2 561410 6 552202 552201 1 165010 2 552204 2 561410 5 558511 552204 1 561410 4 552204 1 561410 1 263230 2 263230 1 263230 3 352112 352111 352111 W52240 1 W52240 1 559990 Thermistor Thermistor Thermistor UV2 CYCLE PARTS ...

Page 223: ...Service Manual 223 Explodede View Replacement Parts List 344170 135312 344130 359011 1 359011 2 649950 2 649950 1 AIR HANDLER PARTS CONTROL BOX PARTS ...

Page 224: ...Explodede View Replacement Parts List 224 Outdoor Unit W6200 668711 2 668711 5 668711 4 W0CZZ W0FZZ 1 WIPM W6200 668711 1 668711 2 668711 3 WIPM 668711 4 261704 W0FZZ 1 ...

Page 225: ...TUBE ASSEMBLY EXPANSION 5211A10672A MAIN 552200 1 VALVE EXPANSION BODY 5224A20004H 552201 2 VALVE CHECK 3A01020D 55211G 2 TUBE ASSEMBLY EXPANSION 5211A11600A SUBCOOLER 552200 2 VALVE EXPANSION BODY 5220A20039A SUBCOOLER 561411 COIL ASSEMBLY EXPANSION 6141A20050A SUBCOOLER 558511 DRIER ASSEMBLY 5851A20002A W52240 3 STRAINER 5220A20005D 552203 1 VALVE SERVICE 5220A90012M 552203 2 VALVE SERVICE 5220A...

Page 226: ...P No 3828A24006H Printed in Korea After reading this manual keep it in a place easily accessible to the user for future reference ...

Search results

Summary of Contents for ARNU Series

Reviews:

Related manuals for ARNU Series

Brands by name

Popular brands

LG ARNU Series, Service Manual

Search results

Summary of Contents for ARNU Series

Reviews:

Related manuals for ARNU Series

Brands by name

Popular brands