Troubleshooting guide

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Universal System Air Conditioner

SVC MANUAL(Exploded View)

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual.

Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

Summary of content (144 pages)

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Internal Use Only http://biz.lgservice.com Universal System Air Conditioner SVC MANUAL(Exploded View) CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
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TABLE OF CONTENTS Safety Precautions ...................................................................................................3 I. Indoor Units Introduction....................................................................................................................................8 Ceiling Cassette 4-way................................................................................................................10 Ceiling Suspended .........................................................
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I. Indoor Units Introduction.......................................................................................................8 Ceiling Cassette 4-way...................................................................................10 Ceiling & Floor ................................................................................................28 Ceiling Concealed Duct..................................................................................44 Copyright ©2007 LG Electronics. Inc.
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Introduction Introduction • Models List Model name Nominal capacity[(Btu/h(kW)] Indoor Unit Type Refrigerant Chassis name Ceiling Cassette 4-Way R410A TD 36,000 (10.6) 42,000 (12.3) 48,000 (14.1) 60,000 (17.6) ATNH366DLFC ATNH426DLFC ATNH486DLFC ATNH606DLFC Power Supply 1Ø, 220Ceiling Suspended Ceiling Concealed Duct R410A R410A VK VL BG BR AVNH366KLA1 AVNH366KLAC ABNH366GLAC - Copyright ©2007 LG Electronics. Inc. All right reserved.
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Introduction • Model Number Nomenclature Indoor unit A T N H 4 8 6 D L F C 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 Look L : Basic Chassis Name Electrical Ratings 6:1Ø,220V~240V,50Hz 8:3Ø,380V~415V,50Hz Nominal Cooling Capacity in Btu/h Ex) 18 -> 18,000 Btu/h, 48 -> 48,000 Btu/h Model Type C : Cooling Only H : Heat Pump Indicates tha
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Ceiling Cassette 4-way Ceiling Cassette 4-way Ceiling Cassette 4-way (R410A·Indoor Units) ATNH-DL Contents 1. Features & Benefits ..............................................................................11 2. List of Functions....................................................................................15 3. Specifications........................................................................................16 4. Dimensional Drawings ............................................................
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Ceiling Cassette 4-way 1.
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Ceiling Cassette 4-way Plasma Air Purifying System The PLASMA Air Purifying Function not only removes microscopic contaminants and dust, but also removes house mites, pollen, and pet fur helps to prevent allergic diseases like asthma. Dust electrode discharge Dust particles Ionizer Photo-Catalyst Coated Mesh +4.8KV discharge + + + Polluted Air Purified fresh Air + Generating plasma Odour Odour molecule High Head Drain Pump(700mm) Built-in Drain Pump drains out water automatically.
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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. CHILD LOCK -Display Auto Elevation Grille(Accessory) -Auto Elevation Grille is automatically down to height of max. 3.1 m.
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Ceiling Cassette 4-way Weekly Program - On/Off schedule of operation for a period of ONE week. No need to turn the unit On/OFF manually during working days. On/Off time is scheduled in micom of the wired remote control. Operation Time Table (Example) Setting Mon Temp.
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Ceiling Cassette 4-way 2.
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Ceiling Cassette 4-way 3. Specifications Indoor unit type Ceilling Cassette - 4way ATNH366DLFC [UT36 NDC] Model Power Supply Ø/V/Hz Cooling Capacity ATNH426DLFC [UT42 NDC] ATNH486DLFC [UT48 NDC] ATNH606DLFC [UT60 NDC] 1 / 220 ~240 / 50 1 / 220 ~240 / 50 1 / 220 ~240 / 50 1 / 220 ~240 / 50 kW 9.5 11.9 12.9 14.2 Btu/h 32,500 40,500 44,000 48,500 Heating Capacity kW 10.8 13.3 14.5 15.9 Btu/h 37,000 45,500 49,500 54,500 Current Nominal running current 0.76 1.2 1.5 1.
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Ceiling Cassette 4-way 4. Dimensional Drawings ATNH-DL 875 (Ceiling opening) 785(Hanging bolt) 288 950 950 840 Unit size 840 Unit size 875 (Ceiling opening) 45 101.5 672 (Hanging bolt) 101.5 45 Unit:mm 950 840 5 785 840 950 678 4 40 6 1 210.5 52 180 110 90 110 90 140 30 290 30 2 3 (unit : mm) Number 1 2 3 4 5 6 Name Liquid pipe connection Gas pipe connection Drain pipe connection Power supply connection Air discharge grille Air suction grille Copyright ©2007 LG Electronics.
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Ceiling Cassette 4-way 5.
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Ceiling Cassette 4-way 6. Piping Diagrams :Cooling :Heating Heat Exchanger Turbo Fan lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Gas Liquid ATNH366DLFC 15.88(5/8) 6.35(1/4) 19.05(3/4) 9.52(3/8) ATNH426DLFC ATNH486DLFC ATNH606DLFC Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling Cassette 4-way 7. Operating Instructions ■ Name and Function of Remote Controller AUTO SWING OPERATION SET TEMP Room Temp Operation unit 03 SUB FUNCTION HI MED LO AUTO Heater Preheat JET Defrost Humidify Filter Out door ZONE 1 2 3 4 Time Timer On Off Set no. Time 01 FAN SPEED Program set 05 07 09 11 13 15 17 19 21 23 6 3 17 10 11 12 13 14 15 Heat Pump Model 1 2 Timer Cancel Program Week 5 Holiday 4 Plasma 7 8 9 Set/Clr Hour Min Cooling Model RESET 16 18 1.
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Ceiling Cassette 4-way ■ Wireless Remote Controller (optional) This air-conditioner is equipped with wired remote controller basically. But if you want to be available with wireless remote controller, you pay for it. 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. Signal transmitter 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. 3. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature. 4.
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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.
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Ceiling Cassette 4-way 8.2 Ceiling opening dimensions and hanging bolt location • The dimensions of the paper pattern for installation are the same as those of the ceiling opening dimensions. Ceiling Ceiling board Level gauge TF Model 521(Hanging bolt) 790 (Ceiling opening) 39.5 109 875 (Ceiling opening) 572(Hanging bolt) 109 45 785(Hanging bolt) 45 101.5 672 (Hanging bolt) 101.
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Ceiling Cassette 4-way Keep the length of the bolt from the bracket to 40mm Hanging bolt (W3/8 or M10) Nut (W3/8 or M10) Flat washer for M10 (accessory) Ceiling board Spring washer (M10) Flat washer for M10 (accessory) Nut (W3/8 or M10) Air Conditioner body Ceiling board Paper pattern for installation Adjust the same height • The following parts are local purchasing.
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Ceiling Cassette 4-way 8.4 Installation of Decoration Panel Before installing the decoration panel, always remove the paper template. The decoration panel has its installation direction. 1. Temporarily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount 10mm in length.) The fixing screws (hexagon M5 screw) are included the indoor unit box. 2. Remove the air inlet grille from the decoration panel. (Remove the hook for the air inlet grille cord.) 3.
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Ceiling Cassette 4-way 8.5 Indoor Unit Drain Piping • Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow. • During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit. • The outside diameter of the drain connection on the indoor unit is 32mm.
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Ceiling Cassette 4-way 9. Accessories Standard Accessories Name Drain hose Clamp metal Quantity 1 EA 1 EA Washer for hanging backet 8 EA Clamp Insulation for fitting 8 EA 1 SET Shape for gas pipe (Other) • Paper pattern for installation • Owner's manual • Installation manual for liquid pipe Optional Accessories(For Unit) No. Item Type Model No.
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Ceiling suspended Ceiling suspended Ceiling suspended (R410A·Indoor Units) AVNH-KL/LL Contents 1. Features & Benefits ..............................................................................29 2. List of Functions....................................................................................30 3. Specifications........................................................................................31 4. Dimensional Drawings ........................................................................
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Ceiling suspended 1. Features & Benefits Natural CHAOS wind • It swings at an angle, thus minimizing the difference in indoor temperatures and allowing air in every corner of the room. Auto air flow direction (up&down) • The air flow direction can be adjusted as desired by using the remote controller. Horizontal • This is effective when you want to cool yourself directly Downward One-touch air filter & filter chage alarm function • Easily change air filter when it is dirty.
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Ceiling suspended 2.
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Ceiling suspended 3. Specifications Indoor unit type Ceiling suspended AVNH366KLAC AVNH366KLA1 AVNH426LLAC AVNH486LLAC AVNH606LLAC [UV36 NKC] [UV36E] [UV42 NLC] [UV48 NLC] [UV60 NLC] Model Power Supply Cooling Capacity Heating Capacity Current Nominal running current Fan Motor Type Ø/V/Hz 1 / 220~240 / 50 1 / 220~240 / 50 1 / 220~240 / 50 / 220~240 / 50 / 220~240 / 50 kW 9.5 8.8 11.9 12.9 14.1 Btu/h 32,500 30,027 40,500 44,000 48,000 kW 10.6 10.3 13.2 14.5 15.
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Ceiling suspended 4. Dimensional Drawings AVNH-KL/LL 160 320 320 160 B 50 50 C 650 A Note: 1. Pipe Specification(mm) (unit: mm) Dimension Chassis A B C VL Chassis 1750 1655 220 VK Chassis 1350 1255 220 More than 70cm Model Liquid Gas 36k Ø 6.35 Ø 15.88 42k, 48k, 60k Ø 9.52 Ø 19.05 Anchor nut Ceiling Nut Suspension bolts Washer 320mm B Suspension bolt More than 30cm More than 70cm Suspension bolts Spring washer Hangen Max. 12mm Copyright ©2007 LG Electronics. Inc.
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Ceiling suspended 5. Wiring Diagrams AVNH-KL AVNH-LL CONNECTOR NUMBER LOCATION CONNECTOR NUMBER LOCATION CN-POWER AC POWER SUPPLY CN-TH2 CN-MOTOR BLDC FAN MOTOR OUTPUT CN-TH1 PIPE AND ROOM SENSOR CN-D/PUMP DRAIN PUMP OUTPUT CN-HVB AIR CLEANER CN-AC/DC AC/DC CONNECTION CN-DOOR STEP MOTOR CN-DISPLAY DISPLAY CN-U/D1 STEP MOTOR CN-FLOAT FLOAT SWITCH INUT CN-CC CENTRAL CONTROL Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling suspended 6. Piping Diagrams :Cooling Heat Exchanger :Heating C.F.F. lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Gas Liquid 15.88(5/8) 6.35(1/4) 19.05(3/4) 9.52(3/8) AVNH366KLAC AVNH366KLA1 AVNH426LLFC AVNH486LLFC AVNH606LLFC Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling suspended 7. Operating Instructions ■ Remote Control Operation The Remote Controller transmits the signals to the system. Signal transmitter 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. (Heat Pump) (Cooling Only) 3. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature. 5 6 4.
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Ceiling suspended 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. 8.1 Selection of the best location More than 70cm Indoor unit • There should not be any heat source or steam near the unit.
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Ceiling suspended CASE 2 Suspension bolts • Install the unit leaning to a drainage hole side as a figure for easy water drainage. Spring washer Max. 12mm Nut Washer POSITION OF CONSOLE BOLT • A place where the unit will be leveled and that can support the weight of the unit. • A place where the unit can withstand its vibration. • A place where service can be easily performed. • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling.
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Ceiling suspended 8.3 Preparing Work for Installation Open side cover 1. Remove two screws from side-cover as shown in fig. 2. Unlock side-cover from side panel by slightly pulling the edge of side cover. 3. Tap the side-cover with your palm on the backside.(Inlet grill side.) 4. Hold the side-cover with other hand while tapping to prevent it to fall down. Recommendation: it is recommended to select the left side for drain to have common hole in the side-cover along with pipe and wiring. 5.
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Ceiling suspended 8.4 Mounting the anchor Nut & Bolt(Ceiling Mounting) MOUNTING THE ANCHOR NUT AND BOLT • Prepare 4 suspension bolts. (Each bolts length should be same.) Anchor nut • Measure and mark the position for the Suspension bolts and the piping hole. Ceiling Nut Washer Suspension bolts • Drill the hole for anchor nut on the ceiling. • Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceiling.
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Ceiling Concealed Duct 8.5 Indoor unit installation Hang the Indoor unit on suspension bolt as per following guidelines: 1. Lift the indoor unit to sufficient height. 2. Insert the suspended part of four suspension bolt in the four hangers provided on the side of main body one by one. 3. Lower the indoor unit till the hangers rest on their respective flat washer. 4. Adjust the level in the top down direction by adjusting the suspension bolts.
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Ceiling Concealed Duct 8.6 Checking the Drainage 1. Set the air direction louvers up-and-down to the position(horizontally) by hand. To check the drainage. 1. Pour a glass of water on the evaporator using a kettle. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. Drain piping 1. The drain hose should point downward for easy drain flow. Downward slope 2. Do not make drain piping like the following.
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Ceiling Concealed Duct 8.7 Connecting the Cables Indoor 1. The control box of indoor unit is on the left side when seen from front side. 2. Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection (Ensure that the color of the wires of the outdoor unit and the terminal no.
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Ceiling suspended 9. Accessories Standard Accessories Name Drain hose Clamp metal Washer for hanging backet Clamp Insulation for fitting Quantity 1 EA 1 EA 8 EA 6 EA 1 set (Other) • Owner's manual • Installation manual Shape for gas pipe for liquid pipe Optional Accessories(For Unit) No. Item Type Model No.
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Ceiling Concealed Duct Ceiling Concealed Duct Ceiling Concealed Duct (R410A·Indoor Units) ABNH-HL/GL/RL Contents 1. Features & Benefits ..............................................................................45 2. List of Functions....................................................................................47 3. Specifications........................................................................................48 4. Dimensional Drawings ......................................................
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Ceiling Concealed Duct 1. Features & Benefits ■ Easy Installation • Compact & light design • (Linear E.S.
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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. Desired ESP can also be set through LCD wired remote control. Setting of the desired ESP gives required combination of ESP and airflow.
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Ceiling Concealed Duct 2.
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Ceiling Concealed Duct 3. Specifications Indoor unit type Ceilling Concealed Duct - High Static ABNH366GLAC [UB36 NGC] Model Power Supply Ø/V/Hz Cooling Capacity Nominal running current Fan Motor Type 9.8 11.9 13.2 14.9 40,500 45,000 51,000 kW 10.8 13.8 14.9 16.9 Btu/h 37,000 47,000 51,000 57,500 A 1.42 3.65 3.65 3.
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Ceiling Concealed Duct 4. Dimensional Drawings ABNH-GL, RL k A B h i l f e K J C E j a D F (G) H b c d Note: 1. Pipe Specification(mm) Model Liquid Gas 36k Ø 6.35 Ø 15.88 42k, 48k, 60k Ø 9.52 Ø 19.05 (Unit: mm) Capacity A B F (G) H ABNH366GLAC 1232 1182 355 45.5 450 30 87 830 ABNH426RLAC ABNH486RLAC 1282 1230 477 ABNH606RLAC 30 Top view (unit: mm) C D 56 E 590 J K a b c d e f h i j k l 186 298 229.5 243 232 243 116 160 53 59 81 19 158.
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Ceiling Concealed Duct 5. Wiring Diagrams ROOM. IN-PIPE. OUT-PIPE.
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Ceiling Concealed Duct 6. Piping Diagrams :Cooling :Heating Heat Exchanger Sirocco Fan lndoor unit : Thermistor Refrigerant pipe connection port diameter [unit: mm(inch)] Model Gas Liquid ABNH366GLAC 15.88(5/8) 6.35(1/4) 19.05(3/4) 9.52(3/8) ABNH426RLAC ABNH486RLAC ABNH606RLAC Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling Concealed Duct 7. E.S.P. Setting for (E.S.P. Control) provide required constant air volume irrespective of E.S.P. charge. (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. ■ Without Zone System 1. Position V-H, F-H: • This position sets the maximum E.S.P as a default set. 2. Position V-L: • This position sets the minimum E.S.P as a default set. ■ With Zone System 1. Position V-H: • Maximum E.S.
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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. 1 Push the "On/Off" button. The unit will start. AUTO SWING OPERATION SET TEMP FAN SPEED Room Temp AUTO Heater Preheat JET Defrost Humidify Filter Out door ZONE 1 2 3 4 Time Timer Operation unit On Off Set no.
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Ceiling Concealed Duct Table 7-1 Static Pressure(mmAq) Model Name ABNH366GLAC ABNH426RLAC ABNH486RLAC ABNH606RLAC 0 2 4 6 8 10 12 14 15 Step CMM(CFM) High 32(1130) 230 230 225 220 150 1 Med 29(1024) 240 238 237 235 230 220 Low 26.
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Ceiling Concealed Duct Table 7-2 Model Name ABNH366GLAC ABNH426RLAC ABNH486RLAC ABNH606RLAC Static Pressure(mmAq) 6 8 10 Setting Value 0 High 1 42(1483) 40(1413) 38(1342) 35.5(1254) 33.5(1183) 32(1130) Med 220 39(1377) 37(1307) 35(1236) 33(1165) 31(1095) 29(1024) Low 240 34(1201) 32.5(1148) 31(1095) 29.5(1042) 27(954) 26.5(936) High 215 44.5(1572) 43.4(1533) 41(1448) 39.4(1402) 37.5(1324) 36.4(1286) Med 230 41(1448) 40.2(1420) 37.6(1328) Low 248 37(1307) 36.
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Ceiling Concealed Duct 8. Operating Instructions ■ Name and Function of Remote Controller AUTO SWING OPERATION SET TEMP Room Temp Timer Operation unit 3 Signal Receiver 5 8 9 10 11 12 13 03 SUB FUNCTION AUTO Heater Preheat JET Defrost Humidify Filter Out door ZONE 1 2 3 4 HI MED LO Time On Off Set no. Time 01 FAN SPEED 1 Program set 05 07 09 11 13 15 17 19 21 23 2 Timer Cancel Program Week 6 7 4 Holiday Plasma 15 16 17 SET/CLR Hour Min RESET 14 1.
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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 Used to circulate room air without cooling or heating. Signal transmitter Transmits the signals to the signal receptor. 2. Cooling Operation Button 3. Soft Dry Operation Button Used to dehumidify without overcooling. 1 11 A/CL 4 10 3 9 5 2 6 7 8 4.
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Ceiling Concealed Duct 9. 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.
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Ceiling Concealed Duct 9.2 Ceiling dimension and hanging bolt location A ■ Installation of Unit Install the unit above the ceiling correctly. B C E CASE 1 D 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. • Refer toDimensinal Drawings. I 1-3 mm F (G) H Drainage hole • Install the unit leaning to a drainage hole side as a figure for easy water drainage. M10 Nut X4 (Local M10 SP.
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Ceiling Concealed Duct • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. • Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling. • Mount the suspension bolts to the set anchor firmly. • Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, washers and spring washers.
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Ceiling Concealed Duct 9.4 Insulation THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Union for liquid pipe Refrigerant pipe and thermal insulator(Local supply) Hose crip for thermal insulator (Local supply) Thermal insulator for refrigerant pipe (Local supply) Union for gas pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for piping(Local supply) Overlap with thermal insulator for piping.
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Ceiling Concealed Duct CAUTION 1. Decline Installation of indoor unit is very important for the drain of the duct type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe should be 5mm. Front of view • The unit must be or declined to wards drain hose while installation. 1~3mm Ceiling Drainage hole CORRECT Drainage hole INCORRECT CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING Lay the drain hose with a downware inclination so water will drain out.
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Ceiling Concealed Duct 10. Accessories Standard Accessories Name Clamp metal Drain hose Insulation for fitting Clamp Screws for duct flanges Quantity 1 EA 1 EA 1 set 6 EA 1 set (Other) • Owner's manual • Installation manual • Washers(8 pcs.) Shape for gas pipe for liquid pipe Optional Accessories(For Unit) No. Item 1 Wireless remote control 2 Type Model No.
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II. Outdoor Units Introduction ....................................................................................................65 (AUUW-C / R410A) .........................................................................................67 Copyright ©2007 LG Electronics. Inc. All right reserved.
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Introduction Introduction Outdoor Units - R410A (AUUW-C) • Models List Series Model name Power supply AUUW368C AUUW368C1 MPS Inverter AUUW428C Heat Pump 3Ø, 380-415, 50Hz AUUW488C AUUW608C • Indoor Unit Matching LG’s ual system. system consist of one outdoor unit which can match with three different indoor units as individ- The indoor units are ceiling cassette, ceiling concealed duct and ceiling & floor types.
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Introduction • Model Number Nomenclature A U U W 3 6 8 B Serial Number Electric Standard (Phase, Volts, Freq) 6:1Ø,220V~240V,50Hz 8:3Ø,380V~415V,50Hz Nominal Cooling Capacity in Btu/h 60 : 60,000 Btu/h 12 : 12,000 Btu/h 18 : 18,000 Btu/h 72 : 72,000 Btu/h 24 : 24,000 Btu/h 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 Copyright ©2007 LG Electronics. Inc. All right reserved.
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Inverter SINGLE A Inverter SINGLE A (R410A·Outdoor Units) AUUW-C Contents 1. Specifications........................................................................................68 2. Dimensional Drawings ..........................................................................70 3. Wiring Diagrams ...................................................................................72 4. Piping Diagrams....................................................................................74 5.
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Inverter SINGLE A 1. Specifications Nominal Capacity and Nominal Input Indoor Units Outdoor Units Cooling Nominal Capacity (Min~Rating~Max) Nominal Input (Min~Rating~Max) Energy label Heating Cooling Heating kw Btu/h kw Btu/h kw kw ABNH366GLAC ABNH426RLAC ABNH486RLAC ABNH606RLAC AUUW368C AUUW428C AUUW488C AUUW608C 5.98~9.82~10.97 7.21~11.87~13.22 8.44~13.19~15.47 9.50~14.95~16.76 20,400~33,500~37,400 24,600~40,500~45,100 28,800~45,000~52,800 32,400~51,000~57,200 6.68~10.84~12.25 8.62~13.77~15.81 9.
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Inverter SINGLE A Outdoor Units Running current AUUW368C Power Supply Power supply cable (outdoor ) Power and transmission cable (outdoor to indoor) A A Ø,V,Hz No.* mm2 No.* mm2 Dimensions mm(inch) Net Weight Compressor (Inverter ) Cooling Heating W*H*D Type Qty x model Motor type Oil Charge volume Oil Type Refrigerant circuit Charge Type Control Max. Piping Length/Elevation Heat exchanger Rows x Column x FPI Defrosting Method Fan Capacitor Drive No.
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Inverter SINGLE A 2. Dimensional Drawings AUUW368C/ AUUW368C1 320 340 360 4-holes for anchor bolts 1030 1060 4 3 76.5 2 160 550 870 1 160 64 320 (Unit: mm) Number Name Descripition 1 Liquid side service valve(mm) Ø6.35 2 Gas side service valve(mm) Ø15.88 3 Air discharge grill 4 Control Cover Copyright ©2007 LG Electronics. Inc. All right reserved.
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Inverter SINGLE A AUUW42/48/608C 4-hole for anchor bolts L1 L2 D L3 W L4 H Control cover L5 L10 L11 Liquid side 3-way valve L7 L6 L8 Gas side 3-way valve L9 Model Dimensions W mm H mm D mm L1 mm L2 mm L3 mm L4 mm L5 mm L6 mm L7 mm L8 mm L9 mm L10 mm L11 mm mm mm Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes AUUW42/48/608C 900 1,165 370 460 45 410 1,135 30 550 175 175 112 120 83 Ø9.52 Ø19.
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Inverter SINGLE A 4. Piping Diagram AUUW36/42/48/608C /368C1 Reversing Valve Refrigerant flow Cooling Heating MODEL A (mm) AUUW368C 6.35 AUUW368C1 AUUW428C 9.52 AUUW488C 9.52 9.52 AUUW608C Oil Separator B (mm) Thermistor 15.88 19.05 19.05 19.05 Thermistor Heat Exchanger Accumulator Solenoid valve Field piping Gas ØB Field piping Liquid ØA Inverter Compressor Low Pressure Switch Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Thermistor L.E.V .
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Inverter SINGLE A 5. Electric Characteristics Unit Model Type Hz Power Voltage OFM MCA MOP MSC RLA kW FLA 7.76 21.1 14 7 0.13 1.4 9.12 26.0 14 7 0.18 1.5 AUUW488C [UU49W UHC] 10.99 29.7 14 7 0.18 1.5 AUUW608C [UU61W UHC] 11.00 35.0 14 7 0.18 1.5 AUUW368C1 [UU37WE] AUUW368C [UU37W UEC] AUUW428C [UU43W UHC] inverter 50 380~415 Voltage range Compressor Min : 352 Maxi :457 Notes : 1.
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Inverter SINGLE A 6. Operation Range Cooling Heating 46 Operative 43 Outdoor Unit [°C DB] Continuous operation 21 Outdoor Unit [°C DB] Warming up Operation 24 Continuous operation -10 -10 Operative -15 18 32 16 Indoor Unit [°C DB] Indoor Unit [°CDB] ❈ Although low ambient kit is installed, in case outdoor temperature goes below 0°C, the cooling capacity can be dropped and operation characteristics can be slightly different. Copyright ©2007 LG Electronics. Inc. All right reserved.
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Inverter SINGLE A 7. Installation 7.1 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. • Take the air conditioner weight into account and select a place where noise and vibration are minimum. • Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
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Inverter SINGLE A 7.3 Piping length and the elevation Pipe Size (Diameter:Ø) Gas Liquid Standard Max. Standard Max. 36k Btu/h 5/8"(15.88mm) 1/4"(6.35mm) 7.5 50 5 30 35 42k Btu/h 3/4"(19.05mm) 3/8"(9.52mm) 7.5 75 5 30 50 48k Btu/h 3/4"(19.05mm) 3/8"(9.52mm) 7.5 75 5 30 50 60k Btu/h 3/4"(19.05mm) 3/8"(9.52mm) 7.
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Troubleshooting Guide III. Troubleshooting Guide Self-diagnosis Function .................................................................................80 Cycle Troubleshooting Guide ........................................................................81 Electronic Parts Troubleshooting Guide ......................................................82 General Information........................................................................................87 Copyright ©2007 LG Electronics. Inc.
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Troubleshooting Guide 1. Self-diagnosis Function ■ Error Indicator • The function is to self-diagnosis air conditioner and express the troubles identification if there is any trouble. • Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table. • If more than two troubles occur simultaneously, primarily the highest trouble for error code is expressed. • After error occurrence, if error is released, error LED is also released simultaneously.
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Troubleshooting Guide 2. Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air, and operating current. Temp. difference Current : approx. 0°C : less than 80% of rated current All amount of refrigerant leaked out. Check refrigeration cycle. Temp. difference Current : approx. 8°C : less than 80% of rated current Refrigerant leakage Clog of refrigeration cycle Defective compressor Temp.
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Troubleshooting Guide 3. Electronic Parts Troubleshooting Guide ❇ Refer to electronic contorol device drawing & schematic diagram. Trouble 1 The Product doesn’t operate at all. Turn off the main power and wait until LED on outdoor PCB is off. Turn on the main power again. Does "Beeping" sound is made from the indoor unit? NO YES Check the voltage of power(AC220V/AC240V, 50Hz). • The voltage of main power. • The voltage applied to the unit.
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Troubleshooting Guide Trouble 2 Product doesn't operate with the remote controller. 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. (When operated in the Sleeping Mode, the wind speed is set to the low speed as force.) Caused by the remote controller.
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Troubleshooting Guide Trouble 3 The Compressor/Outdoor Fan are don't operate Turn on the main power. Operate Cooling Mode by setting the disired temperature of the remote controller is less than one of the Indoor temperature by 1°C at least. When in air circulation mode, compressor/outdoor fan is stopped. Check the sensor for Indoor temperature is attatched as close as to be effected by the themperature of Heat Exchange (EVA.
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Troubleshooting Guide Trouble 4 When indoor Fan does not operate. 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. 38 of micom and the part for driving SSR.(Q01M) • Check the related pattern. • Check the SSR. - SSR Open: Indoor Fan Motor never operate. - SSR short: Indoor Fan Motor always operates in case of ON or OFF.
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Troubleshooting Guide Trouble 5 When the louver does not operate. • Confirm that the vertical louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the vertical louver with hands ⇒ Normal • Check the connecting condition of CN-U/D or CN0L/R Connector • Check the soldering condition(on PCB) of CN-U/D or CN0L/R Connector Check the operating circuit of the vertical louver • Confirm that there is DC +12V between pin ➀ of CN-U/D, CN0L/R and GND.
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Troubleshooting Guide 4. 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. • If more than two troubles occur simultaneously, lower number of error code is first displayed. • After error occurs, if error is released, error LED is also released simultaneously.
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Troubleshooting Guide ■ Error Indicator (Outdoor) Outdoor Error Ex) Error 21 (DC Peack) LED01G (RED) 2 Times 2 Times 2 Times 1 sec 1 sec 1 sec 1 Times 1Times 2 sec 2 sec 1Times LED02G (GREEN) Error code LED01G (Red) Descriotion LED02G (Green) Indoor Status 21 DC Peak (IPM Fault) 2 times 1 time Off 22 CT 2(Max CT) 2 times 2 times Off 23 DC Link Low Volt.
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Troubleshooting Guide 1) Troubleshooting CH01, CH02, CH06 Display code Title 01 Indoor air sensor • Open / Short • Soldered poorly • Internal circuit error Normal resistor : 10KΩ/ at 25°C (Unplugged) Normal voltage : 2.5Vdc / at 25°C (plugged) 02 Indoor inlet pipe sensor • Open / Short • Soldered poorly • Internal circuit error Normal resistor : 5KΩ/ at 25°C (Unplugged) Normal voltage : 2.
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Troubleshooting Guide 2) Troubleshooting CH03 Display code Title 03 Communication Wired R/C Cause of error Wired R/C 12V S • Open / Short • Wrong connection Indoor Unit GND 12V S • Connection of wire • Main PCB Volt. DC12V • Noise interference CN-REMO GND 12Vdc 12Vdc V V Check the Volt. Check point & Normal condition Check the Volt. Check Point 1. Check the wire connection. (Open / Short) → Repair the connection 2. Check the soldering state of connector.
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Troubleshooting Guide 3) Troubleshooting CH04 Display code Title 04 Drain pump / Float switch Cause of error • Float switch Open. (Normal : short) Check point & Normal condition • The connection of wire(Drain pump/ Float switch) • Drain pump power input. (220V) • Drain tube installation. • Indoor unit installation. (Inclination) CN Float CN-D/PUMP CN-Float 0Ω Ω Check the resistance Check Point 1. Check the wire connection. (Open, Soldered poorly) → Repair the connection or change the PCB. 2.
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Troubleshooting Guide 4) Troubleshooting CH05, CH53 Display code 05 / 53 Title Title Communication (Indoor → Outdoor) Cause of error • Communication poorly Check point & Normal condition • Power input AC 220V. (Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misconnected. • The communication line is shorted at GND. • Transmission circuit of outdoor PCB is abnormal. • Transmission circuit of indoor PCB is abnormal. Check Point 1.
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Troubleshooting Guide 5) Troubleshooting CH21 Display code Title Cause of error • Instant over current • Over Rated current • Poor insulation of IPM DC PEAK (IPM Fault) 21 Check point & Normal condition Comp U Resistance(Ω) at 20°C Ω V Terminal W Comp • An instant over current in the U,V,W phase - Comp lock - The abnormal connection of U,V,W • Over load condition - Overcharging of refrigerant Pipe length.
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Troubleshooting Guide Troubleshooting CH21 Check the IPM (Measuring after Comp connector disconnect) 1) Test mode set diode mode( ) P W N V U Measuring method Measuring method A Measuring method B Terminal A B U 0.4~0.6V 0.4~0.6V V 0.4~0.6V 0.4~0.6V W 0.4~0.6V 0.4~0.6V P N W V RD(+) Copyright ©2007 LG Electronics. Inc. All right reserved.
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Troubleshooting Guide 6) Troubleshooting CH22 Display code 22 Title Max. C/T Cause of error Check point & Normal condition Malfunction of compressor Blocking of pipe Low voltage input Refrigerant, pipe length, blocked, … Over current V - Check Point 1. Check the power source.(200~240V) 2. Check the fan operation is right. + - + - + 3. Check the current. 4. Check the install condition. 5. Check the internal circuit. (C/T, Diode, Resistor) Copyright ©2007 LG Electronics. Inc.
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Troubleshooting Guide 7) Troubleshooting CH23 Display code 23 Title DC Link Low voltage Cause of error • DC Link volt is below 300V Check point & Normal condition • Check point & Normal condition • Check the TAB1 is connect. • At not operating : DC Link voltage(260V ) • At Comp operating : DC Link voltage(500V ) Check Point 1. Check the Tab1 connection condition. (Refer to outdoor wiring diagram) 2. Check the CN_COIL(IN), CN_COIL(OUT) connection condition. 3.
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Troubleshooting Guide 8) Troubleshooting CH24, CH25 Display code Title 24 Press S/W Open 25 Input voltage Cause of error Check point & Normal condition • Low / High press S/W open. • Check the connection of “CN_Press”. • Check the components. • Abnormal Input voltage (140Vac , 300Vac ) Check the power source. • Check the components. TRANS1 50Hz, DC12V Check Point • CH 24 • CH 25 1. Check the connection of "CN_PRESS" 1. Check the power source. 2. Check the component of press switch. 2.
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Troubleshooting Guide 9) Troubleshooting CH26 Display code Title 26 DC Compressor Position Cause of error • Compressor Starting fail error Check point & Normal condition • Check the connection of comp wire “U,V,W” • Malfunction of compressor • Check the component of “IPM”, detection parts. Check Point 1. Check the connection condition of PCB. 2. Check the connection condition of Comp. U,V,W wire. 3. Check the connection condition of CN_IPM(P), CN_IPM(N). 4.
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Troubleshooting Guide 10) Troubleshooting CH32 Display code 32 Title D-pipe (Inverter) temp. high (105°C ) Cause of error • Discharge sensor (Inverter) temp. high Check point & Normal condition • Check the discharge pipe sensor for INV. • Check the install condition for over load. • Check the leakage of refrigerant. • Check the Service Valve open. • Check the outdoor fan. D-Pipe temp.
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Troubleshooting Guide 11) Troubleshooting CH40 Display code Title 40 C/T Sensor Error Cause of error Check point & Normal condition • Initial current error • Malfunction of current detection circuit. (Open / Short) • The voltage of "C01N" Is 4.0Vdc(25A) . Figure 1. V Figure 2. DC 2.5V V Check Point 1. Check the input voltage.(200~240V) 2. Check the voltage of C01N at not operating.(0V) 3. Check the voltage of Figure2. red point at not operating.(2.5V) Copyright ©2007 LG Electronics. Inc.
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Troubleshooting Guide 12) Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Display code Title 41 D-pipe sensor (Inverter) • Open / Short • Soldered poorly • Internal circuit error • Normal resistor : 200KΩ / at 25°C (Unplugged) • Normal voltage : 4.5Vdc / at 25°C (plugged) 44 Air sensor • Open / Short • Soldered poorly • Internal circuit error • Normal resistor : 10KΩ / at 25°C (Unplugged) • Normal voltage : 2.
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Troubleshooting Guide 13) Troubleshooting CH51, CH60 Display code Title 51 60 Cause of error Check point & Normal condition Over capacity • Over capacity • Check the indoor unit capacity. • Check the combination table. Over capacity • Check sum error • Check the PCB ASM P/No. • Check the poor soldering. Model Max. single indoor unit capacity AUUW368C AUUW368C1 40 AUUW428C 46 AUUW488C 52 AUUW608C 65 Check Point • CH 51 • CH 60 1. Check the indoor unit capacity. 1.
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Troubleshooting Guide 14) Troubleshooting CH54 Display code Title 54 3-phase wrong wiring of main outdoor unit Cause of error • 3-phase wrong wiring of outdoor unit (Reverse Phase /omission of phase) Check point & Normal condition • Abnormal Main PCB • No connection of CN_Phase • Changed R, S, T connection order Check Point 1. Check the connection condition of R,S,T wire. 2. Check the connection condition of CN_Phase. 3. Check the outdoor main fuse. Copyright ©2007 LG Electronics. Inc.
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Troubleshooting Guide 15) Troubleshooting CH61, CH62 Display code Title Cause of error 61 Condenser pipe sensor temp. high • Condenser pipe sensor detected high temp.(65°C) 62 Heat sink sensor temp. high Check point & Normal condition • Check the load condition. • Check the sensor of Condenser pipe sensor. • Heat sink sensor detect- • Check the fan is locked. ed high temp.(95°C) • Check the sensor of heat sink.
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Troubleshooting Guide 16) Troubleshooting CH67, CH105 Display code Title Cause of error 67 Outdoor fan lock • Outdoor fan is not operating • Check the fan condition. • Check the fan connector 105 Communication error between main PCB and fan PCB • Communication error between main PCB and fan PCB • Short or fusing of communication line • Poor outdoor unit PCB • Power input when the DC link capacitor discharges Check point & Normal condition Check Point • CH 67 • CH 105 1.
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Electronic Control Device IV. Electronic Control Device Ceiling Cacsette Type...................................................................................107 Ceiling Duct Type..........................................................................................108 Celing Suspended ........................................................................................109 Outdoor Unit..................................................................................................
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Schematic Diagram V. Schematic Diagram Ceiling Cacsette Type...................................................................................113 Ceiling Duct Type..........................................................................................114 Celing Suspended ........................................................................................115 Outdoor Unit..................................................................................................
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Functional Description VI. Functional Description Ceiling Cacsette Type...................................................................................118 Ceiling Duct Type..........................................................................................120 Celing Suspended ........................................................................................123 Outdoor Unit..................................................................................................
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Ceiling Cassette Type Ceiling Cassette Type The function of main control ■ Auto Swing Control • This function is to swing the louver up and down automatically. ■ 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.
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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.
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Ceiling Duct Type Ceiling Duct Type 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 • 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.
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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.
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Ceiling Duct Type ■ Hot-Start Control • 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 Compressor Outdoor fan Indoor fan 1min ON ON Off Low Setting fan spped Low Setting fan spped ON 4way Valve Copyright ©2007 LG Electronics. Inc. All right reserved.
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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 • 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.
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Ceiling & Floor ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
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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 Indoor fan ON ON Off Low Setting fan spped Setting fan spped ON 4way Valve Copyright ©2007 LG Electronics. Inc. All right reserved.
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Outdoor Units Outdoor Units 1.Basic control 1.1 Normal operation Cooling mode Heating mode Stop state Compressor Step Control Step Control stop Fan Step Control Step Control After 30sec, Off EEV PID Control PID Control After 60sec, Full Open 4 way valve Off On After 30sec, Off ❈ PID : Proportional Integrate Derivative 1.
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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 Inverter Compressor Load Copyright ©2007 LG Electronics. Inc. All right reserved.
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Outdoor Units 1.
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Outdoor Units 1.4 Fan control Control logic of outdoor fan depends on Outdoor temperature.
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Outdoor Units (3) Two fan model(42k, 48k, 60k) RPM step = Load_Step (42k: 9/9 step, 48k~60k:10/12 step) + Step Compensation by Outdoor Temp. + Step Compensation of temperature difference Indoor Temp. and Setting Temp STEP TABLE RPM(Upper) RPM(Lower) STEP-1 200 OFF STEP-2 200 200 STEP-3 250 250 STEP-4 300 300 STEP-5 400 400 STEP-6 500 500 STEP-7 600 600 STEP-8 700 700 STEP-9 750 750 STEP-10 800 800 STEP-11 850 850 STEP-12 900 900 STEP-13 950 950 Min. RPM 200 200 Max.
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Outdoor Units 2. Special control 2.1 Defrost control 2.1.1 Starting to the defrosting operation 1) Defrost operation will be start when the conditions below are matched a) Accumulation time of operation and the period after completion of defrost = 35 min. b) After 10 minutes from re-starting the compressor .In case of being over 35 minutes of accumulated operating time, defrosting operation starts after 10 minutes.
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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. (❈ Temp. value can be different for each model.) ❈ After the system is stopped by CT cut or heat sink cut-off then the cycle returns to the normal condtiond control.
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Outdoor Units 2.4 Sump heating control 2.4.1 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. < 0 ~ -10°C starting Comp. 15Hz starting LEV Opening target : 0.
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Outdoor Units 3. Protection control 3.1 Discharge Temperature control 3.1.1 Discharge pipe control for Inverter 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.
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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. 2) Compressor working (a) If discharge pipe temperature < T1 Compressor ON, LEV on-time control (b) T2 ≤ discharge pipe temperature < Toff (Hysteresis control) Expansion valve up by ßpulse every 1 min.
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Outdoor Units 3.2 Inverter Protection control(1) 3.2.1 Function : Controlling total power current to protect power semiconductor devices from burn-out by the low current (including connecting mistake) and over current. 3.2.2 Operating process 1) Detection : check the output DC voltage of Current Transformer(CT). 2) Current Transformer Sensing Error a) In initial power input, if the CT output is over 4.
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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 < - 30°C System will go in self diagnosis (error 65) is displayed and product stops. 3.3.
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VII. Exploded View Indoor Unit ..................................................................................................139 Outdoor Unit .................................................................................................148 Panel Assembly, Front .................................................................................152 Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling Concealed Duct Type ABNH-HL, ABNH-GL 336600A 336600B 359012A 346810 359012A 336600A 336600B W0CZZ 267110 354210 249951 268711B 152302 552111 352118 330870 Copyright ©2007 LG Electronics. Inc. All right reserved.
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Ceiling Suspended AVNH-LL 330860 147581B 237202 147581A 159830 249310 146811 137211 135310 135303 354212 135515A 352118 W0CZZ W3110 268711B 267110 346810A 336600B 359012 268711A 336600A 249951 567480A 567480B 567480C 135515B Copyright ©2007 LG Electronics. Inc. All right reserved.
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AVNH-KL 330860 237202 147581 159830 249310 146811 137211 135303 135310 354212 135515A 352118 W0CZZ W3110 268711B 267110 346810A 336600B 359012 346810B 268711A 336600A 249951 567480A 567480B 567480C 135515B Copyright ©2007 LG Electronics. Inc. All right reserved.
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Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes 435301 349480 435512 566000A 552116 552117 566000B 552114 552112 561410A 437211 559010 552111 546810B 546810A 349600 552204 561410B 552200 661400 - 145 430411 566001 554160 550140 261704 447910 268711D 649950 554031 553000 268711C W0FZZ W6200 W0CZZ 137213A 567480B 567480A 435300 137213B 552203B 552203A 435511 Outdoor Unit Model No.
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437210 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 146 - 137213 435511 435301 559010 435512 546810 546810 268711C 268711D 430411 447910 349600 649950 554160 552114 566000A 548490 W0FZZ 552203B 552203A 561410A 554031 566000B 552116 W6200 268711A W6631 261704 566001 554031 561410B 552204 437212 552200 661400 55211G 552115 352114 567480B 567480A Model No.
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P/NO : MFL30301501 JANUARY, 2008