LG LB-H1860HL Service Manual

Ceiling duct type air conditioner

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Ceiling Duct Type Air Conditioner

SVC MANUAL(Exploded View)

MODEL : LB-H1860HL/CL/HP/AL

LB-H1861BL

LB-H2460HL/CL/HP/BL/AL

LB-H2461BL

LB-G3680HL/CL/HP/BL/BS/AL

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

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Troubleshooting

Summary of Contents for LG LB-H1860HL

Page 1 Internal Use Only http://biz.lgservice.com Ceiling Duct Type Air Conditioner SVC MANUAL(Exploded View) MODEL : LB-H1860HL/CL/HP/AL LB-H1861BL LB-H2460HL/CL/HP/BL/AL LB-H2461BL LB-G3680HL/CL/HP/BL/BS/AL CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
Page 2: Table Of Contents
3-way Valve ..........................35 Cycle ............................40 Cycle Troubleshooting Guide ....................43 Electronic Parts Troubleshooting Guide ................44 Electronic Control Device .....................47 Exploded View ........................48 - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 3: Model Number Nomenclature
Heat Pump Basic Fin(PCM) 0 Series 220-240V/50Hz/1Ø 18,000 Btu H chassis LG Changwon R22 Ceiling Duct Type Air conditioner - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 4: Functions
• Even though you went out with the air conditioner on, you can turn it off using the phone outside. - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5: Remote Controller
Program Week Holiday SET/CLR Hour Fan Operation Mode : Fan Operates without cooling & heating Phase Control Setting Timer - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 6: Product Specifications (Cooling & Heating)
5/8(15.88) 5/8(15.88) 5/8(15.88) 5/8(15.88) 880*450*260 880*450*260 880*450*260 880*450*260 Dimension Indoor 870*320*655 870*320*655 870*320*655 870*320*655 Outdoor (WxDxH) Indoor Weight Outdoor - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 5/8(15.88) 5/8(15.88) 5/8(15.88) (mm) Dimension Indoor 880*450*260 880*450*260 1180*450*298 1180*450*298 870*320*655 870*320*655 870*320*800 870*320*800 Outdoor (WxDxH) Indoor Weight Outdoor - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 8: Dimensions
Dimensions (1) Indoor Unit MODEL W(mm) 1180 H(mm) D(mm) - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 10: Refrigeration Cycle Diagram
Refrigeration Cycle Diagram • HEAT PUMP (LB-H1860HL/HP, LB-H1861BL, LB-H2460HL/HP/BL, LB-H2461BL, LB-G3680HL/HP/BL/BS) INDOOR UNIT OUTDOOR UNIT LIQUID SIDE CAPILLARY TUBE HEAT HEAT EXCHANGER EXCHANGER GAS SIDE REVERSING VALVE COOLING COMPRESSOR HEATING *Additional Pipe size(Diameter: ø) Piping length(m) Elevation(m) MODEL refrigerant Liquid Rated Max.
Page 11 • Rated performance for refrigerant line length of: .7.5m • If 18K Model is installed at a distance of 15m, 225g of refrigerant should be added (15-7.5)x30g=225g - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 12: Wiring Diagram
BLOCK OPTION A/CL ZONE UNIT CONTROL 3854A20166E COOLING ONLY Model : LB-H1860CL, LB-H2460CL/AL OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 13: Heat Pump
Model : LB-G3680HL OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM COOLING ONLY Model : LB-G3680CL OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 Model : LB-G3680BS OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM COOLING ONLY Model : LB-G3680CL/AL.ANW8DXT OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15: Operation Details
More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN fan speed fan speed fan speed COMPRESSOR - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 • The operation diagram is as following. PIPING 1min TEMPERATURE 31°C 28°C INDOOR FAN COMPRESSOR : Selected Fan : Low Fan : Fan Stop - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 Indoor piping thermistor error CH 03 Indoor main body / Remote controller unit communication error Water level float switch error CH 04(Optional) - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 18: Installation Of Indoor, Outdoor Unit
• Capacity is based on standard length and maximun allowance length is on the basis of reliability. • Improper refrigerant charge may result in abnormal cycle. - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19: Indoor Unit Installation
4. Avoid places where sulfurous acid gas or corrosive gas is generated. 5. Avoid places near high frequency generators. - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 20: The Indoor Unit Installation
• If the remote controller cord is secured to the wall, provide a trap at the top of the cord to prevent water droplets from running. - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 21: Wired Remote Control Installation
Re-attach the cover. going to be used for some long time. • Slide it back into position. - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 22: Connecting Cables Between Indoor Unit And Outdoor Unit
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. - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 24: Connecting Pipes To The Indoor Unit
I If flare is noted to be defective, cut off the flared section and do flaring work again. Inclined Surface Cracked Uneven damaged thickness Even length all round - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25: Piping Connection
1.8kg . m Ø6.35mm 4.0kg . m Ø9.52mm 5.5kg . m Ø12.7mm 6.6kg . m Ø15.88mm 6.6kg . m Ø19.05mm - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 A ≥ 70mm a water leakage caused by the blocking B ≥ 40mm C ≥ 20mm of intake air filter. - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27: Refrigerant Pipe
Connecting cable Tape • Insulate and tape both the gas piping and liquid piping. Liquid pipe Gas pipe Thermal insulator - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 28: Test Running
M4...118N . cm{12kgf . cm} M5...196N . cm{20kgf . cm} M6...245N . cm{25kgf . cm} M8...588N . cm{60kgf . cm} - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29: Hand Over
HAND OVER Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.). - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 30: Optional Operation
• To control the room temperature by a wired remote controller, install controller(room temp. sensor) to sense the temperature more accurately. • Maunfactured in the position 1. - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 31: Wiring Design
• The maximum length of connecting wire should be below 200m(25Ω) on connecting each units. • Use a wire more than 0.5mm - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 32 • Select the position after checking duct work and E.S.P of the unit. • Maunfactured in the position F-H. - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 Humidify Filter Out door Timer 1 2 3 4 Time ZONE Timer Operation unit Program set Set no. Time - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 34 Note: 1. Be sure to set the value refering table 1. Unexpected set value will cause mal-function. 2. Table 1 is based at 230V. According to the fluctuation of voltage, air flow rate varies. - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35: 3-Way Valve
(5) Set the liquid side valve to the closed posi- tion. - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 – Close the valve on the gas cylinder and dis- charge the refrigerant until the gauge indicates 3 to 5 kg/cm - 36 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 37 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dir ty or depleted, replenish as needed. - 38 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39: Gas Charging
1 minute and then repeat the procedure (pumping down-pin). - 39 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 40: Cycle
(9) Open the liquid side completely first and then the pipe connection is ok or not. gas side fully in order. - 40 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 (5) After the needle of gage indicates below 0 kgf/cm , close the valve of gas side quickly and turn off the power. - 41 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 43: Cycle Troubleshooting Guide
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 43 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 44: Electronic Parts Troubleshooting Guide
Exchange IC03D. of IC03D DC5V? Check the Is the PIN 49,58 of 5V P.C.B pattern. MICOM. DC5V? Exchange MICOM. - 44 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 45 Adjust set temperature. set all right? Is IC01M operated Change IC01M. normally? Is 4way-valve operated? Check RY-4Way. Check the connector. (CN-OUT) - 45 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 Check the wired Remocon Is the pin 39, 40 of PCB and DC 12V pattern. Micom DC 5V? Change the wired Remocon. - 46 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 47: Electronic Control Device
Electronic control device I MAIN P.C.B ASM - 47 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 48: Exploded View
LB-H1861BL, LB-H2461BL, LB-H1860AL, LB-H2460AL 346810 359012 336610A 336610B W0CZZA 263230A 263230A 267110 268711B 354210 249951 152302 552111 352118 330870 - 48 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 359012 336610A 336610B W0CZZA 137213A 137214 567480A 567480B 267110 137213B 268711B 354210 249951 152302 552111 352118 330870 437213A 437213B - 49 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 50 346810 359012 336610A 336610B W0CZZA 137213A 137214 567480A 567480B 267110 137213B 268711B 354210 249951 552111 352118 330870 437213A 437213B - 50 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51 359012 336610A 336610B W0CZZA 137213A 137214 567480A 567480B 267110 137213B 268711B 354210 249951 152302 552111 352118 330870 437213A 437213B - 51 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 359012 336610A 336610B W0CZZA 137213A 137214 567480A 567480B 267110 137213B 268711B 354210 249951 152302 552111 352118 330870 437213A 437213B - 52 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 53 2. Outdoor Unit • Models: LB-H1860HL/CL, LB-H2460HL/CL, LB-H1861BL, LB-H2461BL LB-H1860AL, LB-H2460AL - 53 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 60 JANUARY, 2008 P/NO : 3828A20172A...

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