LG universal system air conditioner Service Manual
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LG universal system air conditioner Service Manual

LG universal system air conditioner Service Manual

Universal system air conditioner
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LG
Universal System
Air Conditioner

SERVICE MANUAL

website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
LG

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  • Page 1: Service Manual

    website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html Universal System Air Conditioner SERVICE MANUAL CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.

  • Page 2: Table Of Contents

    Ceiling & Floor .....................128 V. Functional Description Ceiling Cassette Type..................130 Ceiling Duct Type....................132 Ceiling & Floor .....................135 Outdoor Units ......................138 VII. Explode View and Replacement Parts List Indoor Units ......................151 Outdoor Units ......................169 Panel Assembly, Front ..................179 2 Universal System Air Conditioner...

  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
  • Page 4 • There is risk of fire or electrical • There is risk of fire or electric • There is risk of fire, failure of the shock. shock. product, or electric shock. 4 Universal System Air Conditioner...
  • Page 5 Safety Precautions Do not store or use flammable gas or com- If strange sounds, or small or smoke comes bustibles near the product. from product. Turn the breaker off or discon- nect the power supply cable. • There is risk of fire or failure of product. •...
  • Page 6 (outdoor units) the air inlet or outlet while the product is oper- ated. • There is risk of personal injury and failure of product. • There are sharp and moving parts that could cause personal injury. 6 Universal System Air Conditioner...

  • Page 7: Indoor Units

    I. Indoor Units Introduction.......................8 Ceiling Cassette 4-way...................10 Ceiling & Floor ....................31 Ceiling Concealed Duct..................45 Service Manual 7...

  • Page 8: Introduction

    1Ø, 220-240V, AVNH186BLAB AVNH246BLAB AVNH306BLAB Floor 50Hz [UV18 NBB] [UV24 NBB] [UV30 NBB] ABNH186HLAB ABNH246HLAB [UB18 NHB] [UB24 NHB] Ceiling ABNH306GLAB ABNH366GLAB Concealed R410A [UB30 NGB] [UB36 NGB] Duct ABNH606RLAB ABNH486RLAB [UB60 NRB] [UB48 NRB] 8 Universal System Air Conditioner...

  • Page 9: Model Number Nomenclature

    Introduction • Model Number Nomenclature Indoor unit A T N H 1 8 6 E L F B Serial Number Functions A : Basic B : Low Ambient C : Plasma Filter E : Elevation Grille F : Elevation Grille + Plasma Filter H : Plasma Filter + Low Ambient L : Nano Plasma M : Nano Plasma + Elevation Grille...

  • Page 10: Ceiling Cassette 4-Way

    Ceiling Cassette 4-way (R410A·Indoor Units) ATNH-EL/FL/DL Contents 1. Features & Benefits ................11 2. List of Functions..................15 3. Specifications..................16 4. Dimensional Drawings ................18 5. Wiring Diagrams ...................21 6. Piping Diagrams..................22 7. Operating Instructions................23 8. Installation.....................25 9. Accessories ..................30 10 Universal System Air Conditioner...

  • Page 11: Features & Benefits

    Ceiling Cassette 4-way 1. Features & Benefits Convenience • Auto elevation grille(Accessory) • Tele control(Optional) • LCD wired remote control • Group control • Central control(Accessory) • Weekly progam Cleanness • Plasma air purifying system • Hygienic and easy to clean filter Easy Installation •...
  • Page 12 - It provides you ease of control. Air conditioner can be switched on/off by the telephone. It saves time & energy. In Advance by Telephone In case of Going out Before Coming Home... Without Turning off the Air Conditioner... 12 Universal System Air Conditioner...

  • Page 13: Child Lock Function

    Ceiling Cassette 4-way Child Lock Function -It prevents the children or others from tampering with the control buttons. Unit can be controlled by the wireless remote controller. This can be easily set by pressing timer key & Min key simultaneously. After child lock is set, pressing any key will display CL on the LCD for 3 seconds and all the keys will be ineffective.

  • Page 14: Auto Restart Operation

    Central Room.For Setting Temperature, Fan Speed and other sub functions, access the respec- tive LCD wired remote controller of each unit. Sub PI485(with wire assembly) should be pur- Controller Controller Controller chased as optional. 14 Universal System Air Conditioner...

  • Page 15: List Of Functions

    Ceiling Cassette 4-way 2. List of Functions Category Function ATNH-EL ATNH-FL ATNH-DL Air supply outlet Airflow direction control (left & right) Airflow direction control (up & down) Auto Auto Auto Auto swing (left & right) Auto swing (up & down) Air flow Airflow steps(Fan / Cool / Heat) 3/4/3...

  • Page 16: Specifications

    - Level Difference of Zero. 2. Cooling/heating capacity of indoor unit can be lower when it is connected to MPS variable outdoor. 3. Wiring cable size must comply with the applicable local and national code. 16 Universal System Air Conditioner...
  • Page 17 Ceiling Cassette 4-way Indoor unit type Ceilling Cassette - 4way ATNH366DLFC ATNH486DLFB ATNH606DLFB Model [UT36 NDC] [UT48 NDB] [UT60 NDB] Power Supply Ø/V/Hz 1 / 220 ~240 / 50 1 / 220 ~240 / 50 1 / 220 ~240 / 50 Cooling Capacity 10.6 14.1...

  • Page 18: Dimensional Drawings

    570 Unit size Unit:mm (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection 12k: ø9.52, 18k: ø12.7 flare Drain pipe connection Power supply connection Air discharge grille Air suction grille 18 Universal System Air Conditioner...
  • Page 19 Ceiling Cassette 4-way ATNH-FL(Decoration Panel : PT-HFA, PT-HFC) 790 (Ceiling opening) 572(Hanging bolt) 744 Unit size Unit:mm (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection 24K: ø12.7, 30K: ø15.88 flare Drain pipe connection Power supply connection Air discharge grille Air suction grille Service Manual 19...
  • Page 20 840 Unit size Unit:mm (unit : mm) Number Name Descripition Liquid pipe connection 36k:ø6.35, 48/60k: ø9.52 flare Gas pipe connection 36k:ø15.88, 48/60k: ø19.05flare Drain pipe connection Power supply connection Air discharge grille Air suction grille 20 Universal System Air Conditioner...

  • Page 21: Wiring Diagrams

    Ceiling Cassette 4-way 5. Wiring Diagrams CONNECTOR NUMBER LOCATION CN-POWER AC POWER SUPPLY CN-MOTOR BLDC FAN MOTOR OUTPUT CN-D/PUMP DRAIN PUMP OUTPUT CN-DISP DISPLAY CN-FLOAT FLOAT SWITCH INPUT CN-PTC PTC HEATER INUT CN-REMO REMOTE CONTROL CN-GRILL GRILL CONTROL CN-CC CENTRAL CONTROL CN-PIPE2 DISCHARGE PIPE SENSOR CN-ROOM...

  • Page 22: Piping Diagrams

    Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid ATNH126ELFB [UT12 NEB] 9.52(3/8) ATNH186ELFB [UT18 NEB] 12.7(1/2) 6.35(1/4) ATNH246FLFB [UT24 NFB] ATNH306FLFB [UT30 NFB] 15.88(5/8) ATNH366DLFB [UT36 NDB] ATNH486DLFB [UT48 NDB] 19.05(3/4) 9.52(3/8) ATNH606DLFB [UT60 NDB] 22 Universal System Air Conditioner...

  • Page 23: Operating Instructions

    Ceiling Cassette 4-way 7. Operating Instructions Name and Function of Remote Controller AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp Heat Pump Model AUTO Heater Preheat Defrost Humidify Filter Out door 1 2 3 4 Time ZONE Operation unit Program set Timer...
  • Page 24 • Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source. • Block a strong light over the signal receptor with a curtain or etc. so as to prevent the abnormal operation. (ex:elec- tronic quick start, ELBA, inverter type fluorescent lamp) 24 Universal System Air Conditioner...

  • Page 25: Installation

    Ceiling Cassette 4-way 8. Installation • Please read this instruction sheet completely before installing the product. • When the power cord is damaged, replacement work shall be performed by authorized personnel only. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Anti-bacteria filter Intake Air Outlet...

  • Page 26: Ceiling Opening Dimensions And Hanging Bolt Location

    2. Avoid installng air conditioner in such places where cooking oil or iron powder is generated. 3. Avoid places where inflammable gas is generated. 4. Avoid place where noxious gas is generated. 5. Avoid places near high frequency generators. 26 Universal System Air Conditioner...

  • Page 27: Wiring Connection

    Ceiling Cassette 4-way Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm (W3/8 or M10) Flat washer for M10 Air Conditioner body (W3/8 or M10) (accessory) Ceiling board Ceiling board Spring washer (M10) Flat washer for M10 (accessory) Set screw of Paper pattern...

  • Page 28: Installation Of Decoration Panel

    Air conditioner Cool air leakage causes sweating. Cool air leakage unit (no good) Water drops fall. Ceiling Ceiling board board Decoration Decoration panel panel Fit the insulator (this part) and be careful for cool air leakage 28 Universal System Air Conditioner...

  • Page 29: Indoor Unit Drain Piping

    Ceiling Cassette 4-way 8.5 Indoor Unit Drain Piping Upward Pipe clamp routing • Drain piping must have down-slope (1/50 to 1/100): be sure not allowed not to provide up-and-down slope to prevent reversal flow. Indoor unit • During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.

  • Page 30: Accessories

    • Battery : 2EA control function • Screw : 2EA • Central control Central control Simple PQCSA101S0 • Installation manual • PCB: 1EA PI485 Gateway For central control PHNFP14A0 • Installation manual • Wire assembly 30 Universal System Air Conditioner...
  • Page 31 Ceiling & Floor Ceiling & Floor Ceiling & Floor (R410A·Indoor Units) AVNH-EL/BL Contents 1. Features & Benefits ................32 2. List of Functions..................33 3. Specifications..................34 4. Dimensional Drawings ................35 5. Wiring Diagrams ...................37 6. Piping Diagrams..................38 7. Operating Instructions................39 8. Installation.....................40 9.

  • Page 32: Features & Benefits

    Advanced airflow system and cross flow fan give quiet and more comfortable environment. Noise Distribution(dBA) Vertical Airflow & Balanced Temperature Upward Distribution The heat distribution graph shows an example of even tem- perature distribution achieved by the auto-swing airflow. Downward 32 Universal System Air Conditioner...

  • Page 33: List Of Functions

    Ceiling & Floor 2. List of Functions Category Function AVNH-EL AVNH-BL Air supply outlet Airflow direction control (left & right) Manual Manual Airflow direction control (up & down) Auto Auto swing (left & right) Auto swing (up & down) Air flow Airflow steps(Fan / Cool / Heat) 3 / 4 / 3 3 / 4 / 3...

  • Page 34: Specifications

    - Level Difference of Zero. 2. Cooling/heating capacity of indoor unit can be lower when it is connected to MPS variable outdoor. 3. Wiring cable size must comply with the applicable local and national code. 34 Universal System Air Conditioner...

  • Page 35: Dimensional Drawings

    Ceiling & Floor 4. Dimensional Drawings AVNH-EL Signal receiver & Operation indicator Air discharge grille (Unit: mm) Note: 1. Pipe Specification(mm) Model Liquid Ø 6.35 Ø 9.52 Air suction grille <Ceiling Installation> <Floor Installation> More than 20Cm More than 20Cm More than 20Cm More than 5Cm More than 5Cm...
  • Page 36 Ø 6.35 Ø 15.88 More than 20cm 20cm More than 20cm More than 20cm More than eye-level (Ceiling installation) (Floor/Wall installation) 1076 Suspension bolt (W3/8 or M10) Center-line for the piping hole 1236 1 2 3 36 Universal System Air Conditioner...

  • Page 37: Wiring Diagrams

    Ceiling & Floor 5. Wiring Diagrams AVNH-EL WIRING DIAGRAM STEP MOTOR S/W2 CN-UD1 S/W1 AC PCB ASSY A/CL UNIT GN/YL DC PCB ASSY GN/YL FUSE CN-TH1 CN-TH2 CN-FLOAT CN-DISP MOTOR DPUMP IN-PIPE THERMISTOR INDOOR DRAIN OPTION DISPLAY ROOM OUT-PIPE MOTOR PUMP PCB ASSY FLOAT S/W...

  • Page 38: Piping Diagrams

    6. Piping Diagrams :Cooling Heat Exchanger :Heating C.F.F. lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid AVNH126ELAB [UV12 NEB] 9.52(3/8) AVNH186BLAB [UV18 NBB] 6.35(1/4) 12.7(1/2) AVNH246BLAB [UV24 NBB] AVNH306BLAB [UV30 NBB] 15.88(5/8) 38 Universal System Air Conditioner...

  • Page 39: Operating Instructions

    Ceiling & Floor 7. Operating Instructions Remote Control Operation The Remote Controller transmits the signals to the system. 1. START/STOP BUTTON Operation starts when this button is pressed and stops when Signal transmitter the button is pressed again. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode.

  • Page 40: Installation

    • Insulation materials 5.5kg·m ......Gas side piping Spanner ........Half union • Specified Torque Wrenches 1.8kg·m......Liquid side piping 5.5kg·m......Gas side piping • Hexagonal Wrench (4mm) • Gas-leak Detector • Two type “B” screws • Owner’s Manual • Thermometer 40 Universal System Air Conditioner...
  • Page 41 Ceiling & Floor 8.1 Selection of the best location More than 20cm • There should not be any heat source or steam near the More than 20cm unit. • There should not be any obstacles to the air circulation. More than eye-level •...
  • Page 42 • The unit must be horizontal or declined to the drain hose connected when finished installation. Ceiling Drain hose Ceiling Side of view • The unit must be declined to the bottomside of the unit when finished installation. Ceiling 42 Universal System Air Conditioner...
  • Page 43 Ceiling & Floor CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specially for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit.

  • Page 44: Accessories

    Optional Accessories(For Unit) Item Type Model No. Component Parts • Central control Central control Simple PQCSA101S0 • Installation manual • PCB: 1EA PI485 Gateway For central control PHNFP14A0 • Installation manual • Wire assembly 44 Universal System Air Conditioner...
  • Page 45 Ceiling Concealed Duct Ceiling Concealed Duct Ceiling Concealed Duct (R410A·Indoor Units) ABNH-HL/GL/RL Contents 1. Features & Benefits ................46 2. List of Functions..................48 3. Specifications..................49 4. Dimensional Drawings ................51 5. Wiring Diagrams ...................52 6. Piping Diagrams..................53 7. E.S.P. Setting for ...............54 8.

  • Page 46: Features & Benefits

    Low Noise ! Easy Serviceability! Plastic Fan and Housing Assembly - Designed for low noise - Designed to reduce weight - Designed for easy service This product guarantees lower sound level and gives lesser service expenses. 46 Universal System Air Conditioner...
  • Page 47 Ceiling Concealed Duct LG’s High Technology provide Easy and Low cost Design of Duct work Generally, when External Static Pressure increases air volume decreases. But by controlling the phase of motor while installing the product E.S.P. is controlled from 8~10 mmAq linearly. E.S.P. control provides required constant air volume irrespective of ESP change.

  • Page 48: List Of Functions

    • Accessory: Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package. • **: For ceiling concealed duct model, auto-run function of dry contact is not applicable. If RF remote control use, auto-run function of dry contact is applicable. (Refer to accessory PDB) 48 Universal System Air Conditioner...

  • Page 49: Specifications

    Ceiling Concealed Duct 3. Specifications Indoor unit type Ceilling Concealed Duct - High Static ABNH186HLAB ABNH246HLAB ABNH306GLAB Model [UB18 NHB] [UB24 NHB] [UB30 NGB] Power Supply Ø/V/Hz 1 / 220 ~240 / 50 1 / 220 ~240 / 50 1 / 220 ~240 / 50 Cooling Capacity 5.28 7.03...
  • Page 50 - Level Difference of Zero. 2. Cooling/heating capacity of indoor unit can be lower when it is connected to MPS variable outdoor. 3. Wiring cable size must comply with the applicable local and national code. 50 Universal System Air Conditioner...

  • Page 51: Dimensional Drawings

    Ceiling Concealed Duct 4. Dimensional Drawings ABNH-HL, GL, RL Note: 1. Pipe Specification(mm) Model Liquid 18, 24k Ø 12.7 Ø 6.35 30, 36 Ø 15.88 48, 60k Ø 9.52 Ø 19.05 (Unit: mm) Capacity ABNH186HLAB 932 882 355 45.5 450 163 260 61.5 243 212.3 243 110 130 30 158.5 ABNH246HLAB...

  • Page 52: Wiring Diagrams

    CN-D/PUMP DRAIN PUMP OUTPUT CN-REMO REMOTE CONTROL CN-DISP RF-REMOTE CONTROL CN-ROOM ROOM SENSOR CN-FLOAT FLOAT SWITCH INUT CN-AIRC AIR CLEAN CN-ZONE ZONE CONTROL OUTPUT CN-PTC PTC HEATER CN-CC CENTRAL CONTROL OUTPUT CN-OUT VENTILATION /ELECTRIC HEATER 52 Universal System Air Conditioner...

  • Page 53: Piping Diagrams

    Ceiling Concealed Duct 6. Piping Diagrams :Cooling Heat Exchanger :Heating Sirocco Fan lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Liquid ABNH186HLAB [UB18 NHB] 12.7 (1/2) ABNH246HLAB [UB24 NHB] 6.35 (1/4) ABNH306GLAB [UB30 NGB] 15.88(5/8) ABNH366GLAB [UB36 NGB] ABNH486RLAB [UB48 NRB] 19.05(3/4) 9.52(3/8)

  • Page 54: Setting For

    Slide switch for ceiling height (4) Close the rear cover and check if it works normally. CAUTION Select the position after checking duct work and E.S.P of the unit. • • Maunfactured in the position F-H. 54 Universal System Air Conditioner...
  • Page 55 Ceiling Concealed Duct How to Set E.S.P? Procedure of RPM change: Ex) External Static pressure is 4mmAq for Model Name "ABNH246HLAB". • To protect the unit, compressor is designed to be off during E.S.P. setting. Push the "On/Off" button. AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION...
  • Page 56 Value other than that in table will not give the combinations of airflow & ESP which are mentioned in the table. 2. Table 7-1 is based at 230V. According to the fluctuation of voltage, air flow rate varies. 56 Universal System Air Conditioner...
  • Page 57 Ceiling Concealed Duct Table 7-2 Static Pressure(mmAq) Setting Model Name Step Value CMM(CFM) High 22(777) 21(742) 19.8(669) 18.3(646) 16.5(583) ABNH186HLAB 18.5(653) 17.8(629) 17.1(604) 16.2(572) 14.5(512) [UB18 NHB] 16.1(569) 15.6(551) 15.1(533) 14.2(501) 13(459) High 24(848) 22.5(795) 20.8(735) 19(671) 18(636) ABNH246HLAB 21.3(752) 19.9(703) 18.7(660) 17.2(607)

  • Page 58: Operationg Instruction

    8. Timer Cancel Button Used to cancel the timer. Display temperature can be different from actual room temperature if the remote controller is installed at the place where sun-rays are falling directly or the place nearby heat source. 58 Universal System Air Conditioner...

  • Page 59: Wireless Remote Controller

    Ceiling Concealed Duct Optional Function • Wireless Remote Controller This air-conditioner is equipped with wired remote controller basically. But if you want to have the wireless remote controller, you pay for it. 1. FAN Operation Button Signal transmitter Used to circulate room air without cooling or heat- Transmits the signals to the signal receptor.

  • Page 60: Installation

    • The place where the unit is not affected by an electrical noise. • The place where air circulation in the room will be good . • There should not be any heat source or steam near the unit. 60 Universal System Air Conditioner...
  • Page 61 Ceiling Concealed Duct 9.2 Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. •...
  • Page 62 4) In Australia, the length of power supply cord measured from the entry of the power supply cord to the middle of live pin on the power plug should be over 1.8m. 62 Universal System Air Conditioner...

  • Page 63: Checking The Drainage

    Ceiling Concealed Duct 9.4 Insulation THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Union for liquid pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose crip for thermal insulator (Local supply) Overlap with thermal Thermal insulator for refrigerant pipe...
  • Page 64 B ≥ 2C C ≥ 2 x SP SP = External Pressure (mmAq) 1/50~1/100 1/50~1/100 Ex) External Pressure U-Trap = 10mmAq Drain Pipe A ≥ 70mm B ≥ 40mm MAX 700mm C ≥ 20mm Drain Pump 64 Universal System Air Conditioner...

  • Page 65: Accessories

    Ceiling Concealed Duct 10. Accessories Standard Accessories Screws for Insulation for Clamp (Other) Name Clamp metal Drain hose duct flanges fitting Quantity 1 EA 1 EA 1 set 6 EA 1 set • Owner's manual • Installation manual • Washers(8 pcs.) Shape for gas pipe for liquid pipe...

  • Page 66: Ii. Outdoor Units Introduction

    II. Outdoor Units Introduction ....................67 (AUUW-B, AUUW-0 / R410A) ................69 66 Universal System Air Conditioner...

  • Page 67: Ceiling & Floor

    AUUW4860 [UU48 WUYB] AUUW6060 [UU60 WUYB] • Indoor Unit Matching LG’s system consist of one outdoor unit which can match with three different indoor units as individ- ual system. The indoor units are ceiling cassette, ceiling concealed duct and ceiling & floor types.

  • Page 68: Introduction

    100 : 100,000 Btu/h 30 : 30,000 Btu/h 36 : 36,000 Btu/h 48 : 48,000 Btu/h Model Type W : Inverter Heat Pump H : Heat Pump Indicates that this is a R410A outdoor unit 68 Universal System Air Conditioner...
  • Page 69 MPS Inverter SINGLE A MPS Inverter SINGLE A (R410A·Outdoor Units) AUUW-B, AUUW-0 Contents 1. Features & Benefits ................70 2. Specifications..................72 3. Dimensional Drawings ................76 4. Wiring Diagrams ...................80 5. Piping Diagrams..................86 6. Electric Characteristics .................89 7. Operation Range...................90 8. Installation.....................91 Service Manual 69...

  • Page 70: Features & Benefits

    TPS Control 100% In case of low frequency operation Energy Saving Cooling Cooling load Capacity 1 compressor system *Condition fo trial : ISO5151 Constant Speed AC Inverter TPS Inverter(DC) Saving Zone 2 compressor system Operating Ratio 70 Universal System Air Conditioner...
  • Page 71 COP frequency and constant speed compressor covers rest load. COP of system is higher than DC Inverter Single system. Seasonal EER of DC Inv MPS is the best. Heating Capacity Improved 138%~133% • Using TPS technology, LG multi system 124% 120%~115% achieved world's best wide range of operation 112%...

  • Page 72: Specifications

    0.48 ~ 1.64 ~ 2.37 0.49 ~ 2.19 ~ 2.97 0.49 ~ 2.41 ~ 2.98 (Min~Rated~Max) Heating 0.45 ~ 1.10 ~ 1.35 0.59 ~ 1.65 ~ 2.37 0.63 ~ 2.21 ~ 3.07 0.70 ~ 2.44 ~ 4.50 72 Universal System Air Conditioner...
  • Page 73 MPS Inverter SINGLE A Nominal Capacity and Nominal Input Outdoor Units AUUW126B AUUW186B AUUW246B AUUW306B [UU12W UEB] [UU18W UEB] [UU24W UEB] [UU30W UEB] 1.6 ~6.5/2.0 ~ 5.8 2.3~7.5/2.6~10.6 2.3~13.2/3.3~13.7 2.3~13.0/3.3~19.7 Running Current Cooling/Heating Starting Current Cooling/Heating 1, 220~240, 50 1, 220~240, 50 1, 220~240, 50 1, 220~240, 50 Power supply...
  • Page 74 Nominal Input Cooling 0.6 ~ 3.28 ~ 4.80 2.16 ~ 4.90 ~ 5.50 2.57 ~ 5.83 ~ 6.50 (Min~Rated~Max) Heating 0.95 ~ 3.34 ~ 5.10 2.22 ~ 5.04 ~ 5.70 2.91 ~ 6.61 ~ 7.45 74 Universal System Air Conditioner...
  • Page 75 MPS Inverter SINGLE A Nominal Capacity and Nominal Input Outdoor Units AUUW366B AUUW4860 AUUW6060 [UU36W UHB] [UU48W UYB] [UU60W UYB] 2.9~20.9/4.6~23.1 8.5~26.6/8.6~27.3 9.3~31.3/10.1~35.5 Running Current Cooling/Heating Starting Current Cooling/Heating 1, 220~240, 50 1, 220~240, 50 1, 220~240, 50 Power supply Ø, v, Hz Power Supply Cable (Includes earth) No.* mm...

  • Page 76: Dimensional Drawings

    MPS Inverter SINGLE A 3. Dimensional Drawings AUUW126B [UU12 WUEB]/AUUW186B [UU18 WUEB]/AUUW246B [UU24 WUEB] Air discharge grille Model AUUW126B [UU12 WUEB] AUUW246B [UU24 WUEB] AUUW186B [UU18 WUEB] Dimensions 74.5 74.5 Ø6.35 Ø6.35 Ø12.7 Ø12.7 76 Universal System Air Conditioner...
  • Page 77 MPS Inverter SINGLE A AUUW306B [UU30 WUEB] 4-holes for anchor bolts (Unit: mm) Number Name Descripition Liquid side service valve(mm) Ø6.35 Gas side service valve(mm) Ø15.88 Air discharge grill Control Cover Service Manual 77...
  • Page 78 MPS Inverter SINGLE A AUUW366B [UU36 WUHB] 4-hole for anchor bolts Control cover Liquid side 3-way valve Gas side 3-way valve Model AUUW366B [UU36 WUHB] Dimensions 1,165 1,135 Ø6.35 Ø15.88 78 Universal System Air Conditioner...
  • Page 79 MPS Inverter SINGLE A AUUW4860 [UU48 WUYB] AUUW6060 [UU60 WUYB] 500(bolt hole) Air outlet inlet inlet Service Panel Knockout hole (For the control wiring, the power supply, refrigerant connecting pipe) Knockout hole (For the control wiring, the power supply, (Unit : mm) refrigerant connecting pipe) Service Manual 79...

  • Page 80: Wiring Diagrams

    MPS Inverter SINGLE A 4. Wiring Diagrams AUUW126B [UU12 WUEB] 80 Universal System Air Conditioner...
  • Page 81 MPS Inverter SINGLE A AUUW186B [UU18 WUEB] OUTDOOR WIRING DIAGRAM INVERTER COMPRESSOR RD BL YL REACTOR CN-FAN(A) CN-COIL1 CN-COIL2 MAIN 4WAY CN-4WAY VALVE CN-TH1 CN-TH2 CN-TH3 (H/SINK) (AIR/PIPE) (SUC/DISP-I) LOW PRESS SWITCH CN-COM CN-PRESS CN-GND1 CN-GND2 GN/YL 1(L) 2(N) 1(L) 2(N) 3 POWER TO INDOOR SUPPLY...
  • Page 82 LOW PRESS CN-PRESS SWITCH OIL SEPERATOR CN-OIL/S CONSTANT RY-C/COMP COMPRESSOR CN-COM GND-1 GND-2 GN/YL 1(L) 2(N) 1(L) 2(N) 3 POWER TO INDOOR SUPPLY UNIT Notes: BLUE BLACK BROWN ORANGE WHITE YELLOW GN/YL GREEN/YELLOW FIELD WIRING 82 Universal System Air Conditioner...

  • Page 83: Outdoor Wiring Diagram

    MPS Inverter SINGLE A AUUW306B [UU30 WUEB] OUTDOOR WIRING DIAGRAM INVERTER COMPRESSOR RD BL YL REACTOR CN-FAN(A) FAN(A) CN-COIL1 CN-COIL2 CN-FAN(B) FAN(B) CN-4WAY 4WV 4WAY VALVE MAIN CRANKCASE CN-HEATER HEATER CN-TH1 CN-TH2 CN-TH3 CN-TH4 OPTION DEFROST CN-P/ICE (HEATING) (H/SINK) (AIR/PIPE) (DISP-I/SUG) (DISP-C) LOW PRESS CN-PRESS...

  • Page 84: Wiring Diagram

    LOW PRESSURE CN-PRESS NOISE FILTER SWITCH RELAY FUSE CONS-COMP 250V,20A GND-2 GND-1 GN/YL GN/YL 1(L) 2(N) 1(L) 2(N) 3 Power To Indoor Supply Unit Notes: BLUE BLACK BROWN ORANGE WHITE YELLOW GN/YL GREEN/YELLOW FIELD WIRING 84 Universal System Air Conditioner...
  • Page 85 MPS Inverter SINGLE A AUUW4860 [UU48 WUYB]/AUUW6060 [UU60 WUYB] INV-COMP(A) WIRING DIAGRAM RD BL REACTOR CN-FAN(A) CN-COIL1 CN-COIL2 4WAY CONS-COMP(B) CN-4WAY VALVE PIPE LENGTH NUMBER PIN S/W_ADDRESSING CN-C/COMP2 NUMBER PIN POWER NUMBER PIN RELAY MAIN OPTION PCB ASSY CRANKCASE CN-HEATER HEATER OPTION CRANKCASE...

  • Page 86: Piping Diagram

    AUUW246B [UU24 WUEB] OUTDOOR UNIT Reversing Refrigerant Flow Valve Cooling Heating Check Check Valve Valve Seperator Thermistor Thermistor Accumulator Heat Exchanger Constant Compressor Inverter Compressor Thermistor Low Pressure (Ø 12.7mm) Field Piping L.E.V. Liquid (Ø 6.35mm) Drier 86 Universal System Air Conditioner...
  • Page 87 MPS Inverter SINGLE A AUUW306B [UU30 WUEB] OUTDOOR UNIT Reversing Refrigerant Flow Valve Cooling Heating Check Check Valve Valve Seperator Thermistor Thermistor Heat Accumulator Exchanger Constant Compressor Inverter Compressor Thermistor Low Pressure (Ø 15.88mm) Field Piping L.E.V. Liquid (Ø 6.35mm) Drier AUUW366B [UU36 WUHB] OUTDOOR UNIT...
  • Page 88 Check Check Check Valve Valve Valve Thermistor Seperator Accumulator Thermistor Thermistor Constant Thermistor Compressor 2 Thermistor Constant Inverter Compressor 1 Compressor Thermistor (Ø 19.05mm) Low Pressure S/W Field Piping L.E.V. Liquid (Ø 9.52mm) Receiver Drier 88 Universal System Air Conditioner...

  • Page 89: Electric Characteristics

    MPS Inverter SINGLE A 6. Electric Characteristics Unit Power Compressor Model Type Voltage Voltage range AUUW126B 8.13 14.6 0.12 0.68 (UU12W UEB) AUUW186B 13.2 23.9 0.12 0.68 (UU18W UEB) AUUW246B 17.1 30.8 10/25 7.0/6.0 0.14 0.73 (UU24W UEB) AUUW306B Min. : 198 24.6 44.3 10/28...

  • Page 90: Operation Range

    Continuous Outdoor Unit operation [°C DB] Operative Indoor Unit [°C DB] Indoor Unit [°C DB] Operative: Intermittent operation due to the operational conditions (indoor/outdoor temperature, humidity, load etc.) can cause the heating capacity to decrease 90 Universal System Air Conditioner...

  • Page 91: Installation

    MPS Inverter SINGLE A 8. Installation 8.1 Select the best location • If a roof is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted. • Do not place animals and plants in the path of the warm air. •...
  • Page 92 D : 1000 mm or more A : 45 ˚ or more B : 200 mm or more E : Air outlet guide (procured at the site) C : 250 mm or more F : 250 mm or more 92 Universal System Air Conditioner...

  • Page 93: Lifting Method

    MPS Inverter SINGLE A 8.2 Settlement of outdoor unit • Anchor the outdoor unit with a bolt and nut(ø10mm) tight- Tubing connection Bolt ly and horizontally on a concrete or rigid mount. • When installing on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake.
  • Page 94 • Capacity is based on standard length and maximum allowance length is on the basis of reliability. • Improper refrigerant charge may result in abnormal cycle. • Oil trap should be installed every 10 meters. 94 Universal System Air Conditioner...

  • Page 95: Troubleshooting Guide

    Troubleshooting Guide III. Troubleshooting Guide Self-diagnosis Function .................96 Cycle Troubleshooting Guide ................97 Electronic Parts Troubleshooting Guide ............98 General Information..................103 Service Manual 95...

  • Page 96: Self-Diagnosis Function

    Capacity over 5times 1time Signal error (Indoor Outdoor) 5times 3times EEPROM Check Sum Error 6times Cond. Pipe High 6times 1time Heatsink High 6times 2times Cond. Pipe Low 6times 3times Heatsoml Th error (Open/Short) 6times 5times 96 Universal System Air Conditioner...

  • Page 97: Cycle Troubleshooting Guide

    Troubleshooting Guide Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air, and operating current. Temp. difference : approx. 0°C All amount of refrigerant leaked out. Current : less than 80% of Check refrigeration cycle. rated current Temp.

  • Page 98: Electronic Parts Troubleshooting

    2) The output voltage of power power transfomer. transformer. 3) DC12V 3) Replace IC01D. 3) IC01D(7812) 4) DC5V 4) Replace IC02D. 4) IC02D(7805) 5) The voltage of micom pin 29 5) Replace IC01A. 5) IC01A(KIA7036) : DC4.5V↑ 98 Universal System Air Conditioner...
  • Page 99 Troubleshooting Guide Product doesn't operate with the remote controller. Trouble 2 Turn on main power. While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller.
  • Page 100 DC 5V DC 0V Between IC01M(No. 10) and DC 1V↓ DC 12V Turn off main power. Check the electrical wiring diagram of Outdoor side. Check the open or short of connecting wires between Indoor and Outdoor. 100 Universal System Air Conditioner...
  • Page 101 Troubleshooting Guide When indoor Fan does not operate. Trouble 4 Turn off main power. Check the connection of CN-FAN. Check the Fan Motor. Check the Fuse(AC250V, T2A). Check the related circuit of indoor Fan Motor. • The pin No. of micom and the part for driving SSR.(Q01M) •...

  • Page 102: When The Louver Does Not Operate

    MICOM - Between of IC01M - Between of IC01M If there are no problems after above checks. • Confirm the assembly condition that are catching and interfering parts in the link of the vertical louver 102 Universal System Air Conditioner...

  • Page 103: General Information

    Troubleshooting Guide General Information Error Indicator (Indoor) • The function is to self-diagnosis air conditioner and express the troubles if there is any trouble. • Error mark is displayed on display window of indoor units and wired-remote controller, and LED of outdoor unit control board.
  • Page 104 2 times 6 times PSC Fault 2 times 7 times DC Link High Volt 2 times 8 times Discharge Pipe Temp. High (INV) 3 times 2 times Discharge Pipe Temp. High (Cons.) 3 times 3 times 104 Universal System Air Conditioner...
  • Page 105 Troubleshooting Guide Error Indicator (Outdoor) Outdoor Error LED02G Outdoor Error LED01G Contents Case of error (Green) Status code (Red) CT Circuit 4 times CT Circuit malfunction D-pipe sensor INV. (open/ short) 4 times 1 time Open / Short Air sensor (open/ short) 4 times 4 times Open / Short...
  • Page 106 7. If the voltage of the sensor is 2.5Vdc at 25°C, then sensor is normal. 8. If the resistance of the sensor is 0 or 5Vdc, then sensor is abnormal. Repair or Change the PCB. 106 Universal System Air Conditioner...
  • Page 107 Troubleshooting Guide 2) Troubleshooting CH03 Display Title Cause of error Check point & Normal condition code • Connection of wire Communication • Open / Short • Main PCB Volt. DC12V Wired R/C • Wrong connection • Noise interference Wired R/C Indoor Unit CN-REMO 12Vdc...
  • Page 108 2. Check the resistance of float switch (Abnormal : Open, Normal : short) Check the float switch. 3. Check the level of water 4. Check the volt. Of Drain pump power supply. (AC 230V) Repair or Change the main PCB. 108 Universal System Air Conditioner...
  • Page 109 Troubleshooting Guide 4) Troubleshooting CH05, CH53 Display Title Cause of error Check point & Normal condition code • Power input AC 220V. (Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misconnected. Communication • Communication poorly •...
  • Page 110 Normal : Over 2MΩ. 4. Check the resistance of compressor. Normal : 0.65Ω(INV), 0.8Ω(Cons.) No difference at each terminal. 5. Check the insulation from water at IPM part. Check the trace of water. 6. Check the IPM circuit. 110 Universal System Air Conditioner...
  • Page 111 Troubleshooting Guide 6) Troubleshooting CH21, CH22 Display Title Cause of error Check point & Normal condition code Malfunction of compressor Blocking of pipe Max. C/T Over current (14A ) Low voltage input Refrigerant, pipe length, blocked, … Malfunction of current detection circuit. (Open / Short) Initial current error Internal circuit...
  • Page 112 DC Link • DC link volt. is • Check the power source. High voltage 420Vdc . • Check the components. Check Point 1. Check the power source. 2. Check the components (B/Diode, Reactor, PSC Parts ) 112 Universal System Air Conditioner...
  • Page 113 Troubleshooting Guide 8) Troubleshooting CH24, CH25 Display Title Cause of error Check point & Normal condition code • Check the connection of “CN_Press”. • Low / High press Press S/W Open • Check the components. S/W open. • Abnormal Input voltage •...
  • Page 114 • CH 26 1. Check the component of “IGBT” 1. Check the connection of “U,V,W” 2. Check the components 2. Check the insulation of IPM part. (IGBT, R04S, NF1, BD02S) 3. Check the compressor. (same with CH21) 114 Universal System Air Conditioner...
  • Page 115 Troubleshooting Guide 10) Troubleshooting CH32, CH33 Display Title Cause of error Check point & Normal condition code • Check the discharge pipe sensor for INV. D-pipe (Inverter) • Check the install condition for over load. • Discharge sensor temp. high •...
  • Page 116 2. Estimate the voltage of each sensor.(Plugged) 3. If the resistance of the sensor is 0 kΩ or ∞, then sensor is abnormal. Ω If the voltage of the sensor is 0 V or 5Vdc, then sensor is abnormal. 116 Universal System Air Conditioner...
  • Page 117 Troubleshooting Guide 12) Troubleshooting CH51, CH60 Display Title Cause of error Check point & Normal condition code • Check the indoor unit capacity. • Over capacity Over capacity • Check the combination table. Combination EEPROM • Check the PCB ASM P/No. •...
  • Page 118 Check Point • CH 62 • CH 61 1. Check the fan is locked. 1. Check the install condition for over load. (Refrigerant, Pipe length, Blocked, …) 2. Check the Outdoor temp. is very high. 118 Universal System Air Conditioner...

  • Page 119: Electronic Control Device

    Electronic Control Device IV. Electronic Control Device Ceiling Cacsette Type...................120 Ceiling Duct Type..................121 Celing & Floor ....................123 Service Manual 119...
  • Page 120 Electronic Control Device Ceiling Cacsette Type Main P.C.B ASM 120 Universal System Air Conditioner...

  • Page 121: Ceiling Duct Type

    Electronic Control Device Ceiling Duct Type (BH Series) Service Manual 121...
  • Page 122 Electronic Control Device (BG/BR Series) 122 Universal System Air Conditioner...
  • Page 123 Electronic Control Device Ceiling & Floor (VE Series) Service Manual 123...
  • Page 124 Electronic Control Device (VB Series) 124 Universal System Air Conditioner...
  • Page 125 V. Schematic Diagram Ceiling Cacsette Type...................126 Ceiling Duct Type..................127 Celing & Floor ....................128 Service Manual 125...

  • Page 126: Ceiling Cassette Type

    Schematic Diagram Ceiling Cassette Type 126 Universal System Air Conditioner...

  • Page 127: Ceiling Duct Type

    Schematic Diagram Ceiling Duct Type Service Manual 127...

  • Page 128: Ceiling & Floor

    Schematic Diagram Ceiling & Floor 128 Universal System Air Conditioner...

  • Page 129: Functional Description

    Functional Description VI. Functional Description Ceiling Cacsette Type...................130 Ceiling Duct Type..................132 Celing & Floor ....................135 Outdoor Units....................138 Service Manual 129...

  • Page 130: Cooling Mode Operation

    Speed Speed Speed Swirl Swing Control Vane 2 Vane 2, 4 is almost vane closed while vane1, 3 is opened. Vane 1, 3 and vane 2,4 turn over minutely Vane 1 Vane 3 Vane 4 130 Universal System Air Conditioner...

  • Page 131: Heating Mode Operation

    Ceiling Cassette Type Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 35°C Heat-Exchanger temperature 32°C 29°C 21°C 17°C Intake Air Temperature 3min Low fan during 10sec Setting Temperature +3°C (Thermo OFF)

  • Page 132: Ceiling Duct Type

    Intake Air Temperature SET TEMPERATURE +0.5°C (Thermo. ON) SET TEMPERATURE -0.5°C (Thermo. OFF) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN fan speed fan speed fan speed COMPRESSOR 132 Universal System Air Conditioner...
  • Page 133 Ceiling Duct Type Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40°C Heat-Exchanger temperature 33°C 30°C 27°C 20°C Intake Air Temperature 3min Low fan during 10sec Setting Temperature +3°C (Thermo OFF)
  • Page 134 • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 27°C. • The operation diagram is as following. Indoor unit Heat-Exchanger temperature 33°C 27°C 20°C 1min 1min Compressor Outdoor fan Setting fan Setting fan Indoor fan spped spped 4way Valve 134 Universal System Air Conditioner...

  • Page 135: Ceiling & Floor

    Ceiling & Floor Ceiling & Floor The function of main control Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control. Cooling Mode Operation •...
  • Page 136 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. For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. 136 Universal System Air Conditioner...
  • Page 137 Ceiling & Floor Hot-Start Control • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 21°C. • The operation diagram is as following. Indoor unit Heat-Exchanger temperature 32°C 21°C 17°C 1min Compressor Outdoor fan Setting fan Setting fan Indoor fan spped...

  • Page 138: Outdoor Units

    Step_base Long piping Comp. Step compensation by setting long piping ∆Step_TAO step compensation by TAO (Outdoor temp.) ∆Step_TAI step compensation by TAI (Indoor temp.) ∆Step_DTAI Step Compensation of temperature difference Indoor Temp. and Setting Temp. 138 Universal System Air Conditioner...
  • Page 139 Outdoor Units Target frequency step (Step_base) exceeds maximum step, the Step_base value follows the maximum step value. The compressor get the minimum step in case Step_base value is lower than the minimum step of operating capacity. Compressor operation range Control Capacity Inv.

  • Page 140: Eev Control

    - LEV pulse down : T target > 18°C (3) Target Temperature Control (Heating mode) - LEV pulse up : T target > Tout - LEV pulse down : T target < Tout (4) LEV pulse change Value 140 Universal System Air Conditioner...

  • Page 141: Fan Control

    Outdoor Units 1.4 Fan control Control logic of outdoor fan depends on Outdoor temperature. (1) Single fan model (2) Two fan model Step_Fan Fan (A) Fan (B) Step_Fan Fan A High High High High Outdoor Cooling Single FAN Cooling two FAN temperature Step_Fan + 2 41°C...

  • Page 142: Special Control

    4) Fan of outdoor unit is ON with high speed and maintain it after 5 seconds from the time of 30Hz. 5) Hot Gas bypass valve/Oil separator bypass valve make OFF after 75 seconds from the time of 30Hz. 142 Universal System Air Conditioner...

  • Page 143: Low Ambient Control

    Outdoor Units 2.2 Low ambient control Low ambient cooling case : In this situation outdoor fan works in ON/OFF control. : If the pipe temperature 0°C and it is falling rapidly in that case compressor will run for 5 min & then it will go in low ambient control.

  • Page 144: Oil Equalizing Control

    3) During this operation,if operating Hz couldn’t be changed by safety control ,stop this operation. Operating process : Raise the operating HZ up to 70,and after 20 sec.(option) recover to the last value. 144 Universal System Air Conditioner...
  • Page 145 Outdoor Units 2.5 Sump heating control 2.5.1 Inverter compressor sump heating fuction : A function protecting inverter compressor from damages, by increasing oil viscosity in low outdoor temperature. For the control,compressor operates in low frequencies. Operating condition :in case of the following 3 conditions are fulfilled at the same time. - Outdoor temperature, D-pipe temperature, Heat sink temperature : below 0°C, OD temp.

  • Page 146: Protection Control

    10 pulse in every 1 min. (c) Discharge pipe temperature ≥ Toff Compressor will be off D-Pipe temp Toff(105)°C T2(95)°C T1(90)°C 5 Hz 5 Hz COMP Down Down Expansion Stop control Pulse Up Pulse Up valve 146 Universal System Air Conditioner...
  • Page 147 Outdoor Units 3.1.2 Discharge pipe control for constant compressor 1) There can be two situations (a) Sensor is failed (error code for sensor failure will be generated) (b) Abnormal high temperature discharge temperature (error code for high discharge will be generated) Both cases unit will stop.
  • Page 148 And after 3 min turn on the compressor and check the current again. b) If CT2 occurs 5 times in 1 hour,stop the operation and shows Self-Diagnosis Error Mode 22 Model cooling heating CT 2 (CT 1) (CT 1) 18k~36k 48~60k 148 Universal System Air Conditioner...
  • Page 149 Outdoor Units 3.3 Inverter Protection control(2) 3.3.1 Function : Power module failure protection by checking the temperature of heat sink. There is a temperature sensor for checking the heat sink temperature. 3.3.2 Heat sink sensor failure error Short Check : if temperature ≥130°C Open Check : if temperature <...
  • Page 150 Exploded View & Replacement Parts List VII. Exploded View & Replacement Parts List Indoor Unit ....................151 Outdoor Unit ....................169 Panel Assembly, Front .................179 150 Universal System Air Conditioner...
  • Page 151 Exploded View & Replacement Parts List Ceiling Cassette 4-way Ceiling Cassette Type ATNH-EL 266090 249951 268714 263230-1 159830 354211 35211A 352118 263230-2 263230-3 354211 158591 330870 266012 Service Manual 151...
  • Page 152 Exploded View & Replacement Parts List 130411 W0CZZ 346811 359011 130911-2 130911-1 152150 152150-2 267110-1 267110-2 152 Universal System Air Conditioner...
  • Page 153 Exploded View & Replacement Parts List ATNH-FL 349490 266090 249951 354211-2 268714 354211-1 263230-1 159830 352118-2 263230-2 552111 263230-3 352118-1 158591 266012 330870 Service Manual 153...
  • Page 154 Exploded View & Replacement Parts List 130411 W48300 W48300 W0CZZ 346810 359012 130911-2 152150-1 130911-1 152150-2 267110-2 267110-1 154 Universal System Air Conditioner...
  • Page 155 Exploded View & Replacement Parts List ATNH-DL 249941 249951 266090 268714 159830 263230-1 354211-2 130411 354211-1 352118-2 263230-2 552111 263230-3 352118-1 330870 158591 266012 Service Manual 155...
  • Page 156 Exploded View & Replacement Parts List 130411 W0CZZ 349600 346810 359012 130911-2 352150 130911-1 267110-1 267110-2 352150-2 156 Universal System Air Conditioner...
  • Page 157 Exploded View & Replacement Parts List Parts List Part No. LOCATION DESCRIPTION SVC CODE ATNH126ELFB ATNH186ELFB [UT12 NEB] [UT18 NEB] 130411 BASE ASSEMBLY,WELD(INDOOR) 3041A10013A 3041A10013A 130911-1 CABINET ASSEMBLY,INDOOR 3091A10023C 3091A10023C 130911-2 CABINET ASSEMBLY,INDOOR 3091A10023D 3091A10023D 158591 PUMP ASSEMBLY,WATER 5859A20001M 5859A20001M 159830 AIR CLEANER ASSEMBLY 5983A10002A...
  • Page 158 354211-2 EVAPORATOR ASSEMBLY,BENDING 5421A10016H 5421A10016H 359012 FAN ASSEMBLY,TURBO 5901A10036A 5901A10036A 552111 TUBE ASSEMBLY,CAPILLARY 5211A21137C 5211A21137C W0CZZ CAPACITOR,DRAWING 3H00660M 3H00660M 152150-1 HOSE ASSEMBLY DRAIN 5251A20002B 5251A20002B 152150-2 HOSE ASSEMBLY DRAIN 5251AP2984A 5251AP2984A W48300 MOTOR BUSHING 4830A30003C 4830A30003C 158 Universal System Air Conditioner...
  • Page 159 Exploded View & Replacement Parts List Parts List Part No. LOCA SVC CODE DESCRIPTION ATNH366DLFB ATNH486DLFB ATNH606DLFB TION No. [UT36 NDB] [UT48 NDB] [UT60 NDB] 130411 BASE ASSEMBLY,WELD(INDOOR) 3041A10016A 3041A10016A 3041A10016A 130911-1 CABINET ASSEMBLY,INDOOR 3091A20035A 3091A20035A 3091A20035A 130911-2 CABINET ASSEMBLY,INDOOR 3091A20035B 3091A20035B 3091A20035B...
  • Page 160 Exploded View & Replacement Parts List Ceiling Concealed Duct Type ABNH-HL, ABNH-GL 336610-1 359012-1 346810 359012-2 336610-1 336610-2 W0CZZ 263230-2 263230-1 267110-2 354210 263230-3 249951 268714 267110-1 (OPTION) 152302 552111 352118 330870 160 Universal System Air Conditioner...
  • Page 161 Exploded View & Replacement Parts List ABNH-RL Service Manual 161...

  • Page 162: Parts List

    TUBE ASSEMBLY,MENIFOLD(INDOOR) 5211A20416J 5211A20465G 552111 TUBE ASSEMBLY,CAPILLARY 5211A20693E 5211A20466N 330870 DRAIN PAN ASSEMBLY 3087A10008B 3087A10008B 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A14002E 4995A14002F 268714 PWB(PCB) ASSEMBLY,MAIN 6871A10140X 6871A10140Y 267110-2 REMOTE CONTROLLER ASSEMBLY 6711A10008D 6711A10008D 152302 FILTER(MECH),A/C 5230A30001M 5230A30001M 162 Universal System Air Conditioner...
  • Page 163 Exploded View & Replacement Parts List Part No. LOCATION DESCRIPTION SVC CODE ABNH306GLAB ABNH366GLAB [UB30 NGB] [UB36 NGB] 263230-1 THERMISTOR ASEEMBLY (INDOOR INLET) 6323AQ3214E 6323AQ3214E 263230-2 THERMISTOR ASEEMBLY (PIPE INLET) 6323AQ3226V 6323AQ3226V 263230-3 THERMISTOR ASEEMBLY (PIPE OUTLET) 6323AQ3226E 6323AQ3226E 336610-1 HOUSING (MECH),WRAPPER 3660A20019A 3660A20019A 336610-2 HOUSING (MECH),WRAPPER...
  • Page 164 5421A20212B 5421A20210B 330870 DRAIN PAN ASSEMBLY 3087A20025A 3087A20025A 249951-1 CONTROL BOX ASSEMBLY,INDOOR 4994A20001C 4994A22001C 249951-2 CONTROL BOX ASSEMBLY,INDOOR 4995A22003G 4995A22003H 268714 PWB(PCB) ASSEMBLY,MAIN 6871A10131N 6871A10131P 267110-2 REMOTE CONTROLLER ASSEMBLY 6711A10008D 6711A10008D 152302 FILTER(MECH),A/C 5230A30017A 5230A30017A 164 Universal System Air Conditioner...
  • Page 165 Exploded View & Replacement Parts List Ceiling & Floor Type AVNH-EL 137211 135310 268712 147581 152302 135313 146811 147582 145200 733010 131410 267110-1 W0CZZ 330870 266000 135500 346810 263230-1 131410 354212 35211B 268715 352150 263230-2 268716 W4810 266000 359011 249951 342800 330780 Service Manual 165...
  • Page 166 Exploded View & Replacement Parts List AVNH-BL 166 Universal System Air Conditioner...
  • Page 167 Exploded View & Replacement Parts List Parts List Part No. LOCATION DESCRIPTION SVC CODE AVNH126ELAB [UV12 NEB] 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3721A10092A 146811 MOTOR ASSEMBLY,STEP 4681A20055A 147581 LOUVER,HORIZONTAL 4758A10006A 152302 FILTER(MECH),A/C 5230A10009A 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20356A 263230-1 THERMISTOR ASEEMBLY (INDOOR INLET & PIPE OUT) 6323A20004T 263230-2 THERMISTOR ASEEMBLY (PIPE INLET) 6323AQ3226V...
  • Page 168 352150 HOSE ASSY,DRAIN 5251AP2460B 5251AP2460B 5251AP2460B W0CZZ CAPACITOR,DRAWING 3H00671A 3H00671A 3H00671A 130911 CABINET ASSEMBLY,INDOOR 3091AP2533A 3091AP2533A 3091AP2533A 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10172A 4995A10172B 4995A10172C 147582 LOUVER VERTICAL 4758AP4249A 4758AP4249A 4758AP4249A 145200 LINK 4520AP4263A 4520AP4263A 4520AP4263A 168 Universal System Air Conditioner...

  • Page 169: Outdoor Units

    Exploded View & Replacement Parts List Outdoor Unit Model No.: AUUW126B [UU12 WUEB] / AUUW186B [UU18 WUEB] Service Manual 169...
  • Page 170 W0CZZ CAPACITOR, DRAWING 2A00986D 2A00986D W49810 SUPPORTER ASSEMBLY 4980A20001D 4980A20001D 552204 COIL ASSEMBLY, EXPANSION 5220A90006A 5220A90006A 349480 ORIFICE 4948A20005A 4948AP2527A 349600 BRACKET, MOTOR 4960AP1361A 4960AP1361A 137213-1 PANEL ASSEMBLY, SIDE 1A002010 137213-2 PANEL ASSEMBLY, SIDE 3721A21009A 170 Universal System Air Conditioner...
  • Page 171 Exploded View & Replacement Parts List Model No.: AUUW246B [UU24 WUEB] Service Manual 171...
  • Page 172 5901A10032A 561410 COIL ASSEMBLY,REVERSING VALVE 3A02028B 566000 SWITCH,PRESSURE 3A02524F 649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A10101N 261704 REACTOR 5874A90007A 268711-6 PWB(PCB) ASSEMBLY,MAIN(OUTDOOR) 6871A10117T 552201 VALVE,CHECK 5220A30004A 661400 COIL ASSEMBLY,EXPANSION 5220A90006A 349480 ORIFICE 4948A20005A 349600 BRACKET, MOTOR 3A01934B 172 Universal System Air Conditioner...
  • Page 173 Exploded View & Replacement Parts List Model No.: AUUW306B [UU30 WUEB] Service Manual 173...
  • Page 174 CONTROL BOX ASSEMBLY,OUTDOOR 4995A10101R 261704 REACTOR 5874A90007A 268711-6 PWB(PCB) ASSEMBLY,MAIN(OUTDOOR) 6871A10117U W0CZZ-1 CAPACITOR,DRAWING 2A00986X W0CZZ-2 CAPACITOR,DRAWING 3H00660P 561410 COIL ASSEMBLY,REVERSING VALVE 3A02028B 349480 ORIFICE 4948A20001A 435301 GRILLE DISCHARGE 3530A20006G 349600 BRACKET, MOTOR 4960A10012A W49810 SUPPORTER ASSEMBLY 4980A20001D 174 Universal System Air Conditioner...
  • Page 175 Exploded View & Replacement Parts List Model No.: AUUW366B [UU36 WUHB] Service Manual 175...
  • Page 176 DRIER ASSEMBLY 5851A20002A 559010 FAN ASSEMBLY,PROPELLER 5901A10032A 566000 SWITCH,PRESSURE 3A02524F 649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A10118E 268711-6 PWB(PCB) ASSEMBLY,MAIN(OUTDOOR) 6871A10117V W6920 RELAY 6920AP3400A W0CZZ-1 CAPACITOR,DRAWING 2A00986D W0CZZ-2 CAPACITOR,DRAWING 2A00986A 352114 TUBE ASSEMBLY,DISTRIBUTOR 5211A21190A 349600 BRACKET, MOTOR 4960A10004A 176 Universal System Air Conditioner...
  • Page 177 Exploded View & Replacement Parts List Model No.: AUUW4860 [UU48 WUYB] / AUUW6060 [UU60 WUYB] 435301 435512 137213 330870 559010 549610 447910-1 546810 552113-1 552113-2 552112-1 552112-2 447910-2 352112 554030-2 558511 552112-4 435312 548490-1 554030-4 552112-3 55211E 554030-1 261704 561410-2 554030-3 55211G 552116...
  • Page 178 6141A30003P 6141A30003P 649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A10145F, E 4995A10145F 261704 REACTOR 5874A90006A 5874A90006A 268711-6 PWB(PCB) ASSEMBLY,MAIN(OUTDOOR) 6871A10117W 6871A10117X WOCZZ-1 CAPACITOR,DRAWING 2A00986Y 2A00986Y WOCZZ-2 CAPACITOR,DRAWING 2A00986C 2A00986C WOCZZ-3 CAPACITOR,DRAWING 2A00986A 435312 GRILL ASSEMBLY REAR(OUTDOOR) 3721A10108B 3721A10108B 178 Universal System Air Conditioner...

  • Page 179: Panel Assembly, Front

    Exploded View & Replacement Parts List Panel Assembly, Front PT-HEA/C 268712 146811 152312 435313 137211 135802 Service Manual 179...

  • Page 180: Universal System Air Conditioner

    Exploded View & Replacement Parts List PT-HFA/C 268712 146811 152312 135314 137211 180 Universal System Air Conditioner...
  • Page 181 Exploded View & Replacement Parts List PT-HDA/C 146811 268712 152312 135314 135802 137211 Service Manual 181...
  • Page 182 DESCRIPTION CODE PT-HDA PT-HDC 137211 PANEL ASSEMBLY,FRONT(INDOOR) 3721A10106A 3721A10106B 135314 GRILLE ASSY INLET 3531A10066A 3531A10066A 152312 FILTER ASSY,AIR CLEANER 5231A10004A 5231A10004A 146811 MOTOR ASSEMBLY,STEP 4681A20055A 4681A20055A 268712 PWB(PCB) ASSEMBLY,DISPLAY 6871A20096J 6871A20096J 135802 DOOR 3580A20005A 3580A20005A 182 Universal System Air Conditioner...
  • Page 183 P/No.: 3828A22009B Printed in Korea...

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