Table of Contents
Advertisement
Advertisement
Table of Contents
Troubleshooting
Related Manuals for LG LB-F3660HL
Summary of Contents for LG LB-F3660HL
- Page 1 Internal Use Only http://biz.lgservice.com Ceiling Duct Type Air Conditioner SVC MANUAL(Exploded View) MODEL : LB-F3660HL LB-F3660CL CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
-
Page 2: Table Of Contents
Installation of Indoor, Outdoor Unit Test Running 3-way Valve Cycle Troubleshooting Guide Electronic Parts Troubleshooting Guide Electronic Control Device Schematic Diagram Exploded View - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Functions
Hot start after defrost ends. Hot-start Control (Heating) The indoor fan stops until the evaporator piping temperature will be reached at 28°C - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Remote Controller
Although the air conditioner is turned off by a power failure, it is restarted ✔ automatically after a power resupply. - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 5: Product Specifications (Cooling & Heating)
Main Power Cable 5.5mm Time Delay Safety Function Soft Dry Fan Speed (Indoor) 3 (Hi, Med, Low) Timer 24Hrs Self-Diagnosis - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 6: Dimensions
Dimensions I Model:LB-F3660HL/CL (1) Indoor Unit 1180 (2) Outdoor Unit - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 7: Refrigeration Cycle Diagram
When installed at a distance of 15m, 700g of refrigerant should be added. (15-5) x 70g = 700g - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 8: Indoor Unit
When installed at a distance of 15m, 700g of refrigerant should be added. (15-5) x 70g = 700g - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 9: Wiring Diagram
DEICER PCB MAGNECTIC CONTACTOR COMPRESSOR CRANK CASE HEATER FOR CM TERMINAL BLOCK RUN CAPACITOR FOR FMo P/NO : 3854A20025G - 9 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 10: Lge Internal Use Only
TERMINAL BLOCK OUTDOOR FAN MOTOR CRANK CASE HEATER FOR CM RUN CAPACITOR FOR CM FUSE(250V, 5A) COMPRESSOR P/NO : 3854A20025J - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 11: Operation Details
More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN fan speed fan speed fan speed COMPRESSOR - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 12 The operation diagram is as following. PIPING 1min TEMPERATURE 31°C 28°C INDOOR FAN COMPRESSOR : Selected Fan : Low Fan : Fan Stop - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 13 • During the normal operation 'CHECK' won't be displayed in the remote controller. Remote controller LCD Accident Point Indoor temperature thermistor error Indoor piping thermistor error Indoor/Outdoor unit communication error - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 14: Installation Of Indoor, Outdoor Unit
• Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. s t a More than c l e 30cm More than 70cm - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 15 4. Avoid places where sulfurous acid gas or corrosive gas is generated. 5. Avoid places near high frequency generators. - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 16 • A place where the unit can withstand its vibration. • A place where service can be easily performed. M10 washer (Local M10 SP. washer supply) M10 Nut - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 17: The Indoor Unit Installation
- W3/8 or M10 CAUTION Suspension bolt - W3/8 or M10 Tighten the nut and bolt to prevent unit falling - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 18: Remote Controller Installation
The maximum length of the cord is 100m. If the length of the cord exceeds 50m, use a wire size greater than 0.5mm - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 19: 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. - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 20: Electrical Wiring
Please check !! Cover control - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 21: Connecting Pipes To The Indoor Unit
I If flare is noted to be defective, cut off the flared sec- tion and do flaring work again. Inclined Surface Cracked Uneven damaged thickness Even length all round - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 22: Piping Connection
Flare nut fastening torque 1.8kg . mm 5.5kg . mm Ø6.35mm Ø12.7mm 4.0kg . mm 6.6kg . mm Ø9.52mm Ø15.88mm - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 23 Make sure to be closed. Drainage hole • Upward routing not allowed CORRECT INCORRECT - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 24: Refrigerant Pipe
Connecting cable • Insulate and tape both the gas piping and liquid piping. Tape Liquid pipe Gas pipe Thermal insulator - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 25: Test Running
M4...118N . cm{12kgf . cm} M5...196N . cm{20kgf . cm} M6...245N . cm{25kgf . cm} M8...588N . cm{60kgf . cm} - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 26: Hand Over
HAND OVER Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.). - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 27: 3-Way Valve
– Open the low-pressure valve on the charge set slightly to air purge from the charge hose. (5) Set the liquid side valve to the closed position. - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 28 – Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg/cm - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 29 – Discharge the refrigerant gradually; if it is discharged too suddenly, the refrigeration oil will also be discharged. - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 30 (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. - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 31: Gas Charging
1 minute and then repeat the procedure (pumping down-pin). - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 32: Cycle Troubleshooting Guide
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 33: Electronic Parts Troubleshooting Guide
Exchange IC02D of IC02D DC5V? Check the Is the PIN 31,32 of 5V P.C.B pattern. MICOM. DC5V? Exchange MICOM - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 34 Is the pin 31, 32 of Check the wired Remocon Micom DC 5V PCB and DC 12V pattern. Change the wired Remocon. - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 35 Is IC01M operated Change IC01M. normally? Is 4way-valve operated? Check RY-4Way Check the connector (CN-OUT, CN-AC1.2) - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 36: Electronic Control Device
Electronic control device • MAIN P.C.B ASM - 36 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 37: Schematic Diagram
Schematic Diagram - 37 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 38: Exploded View
Exploded View and Replacement Parts List 1. Indoor Unit - 38 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 39 2. Outdoor Unit - 39 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 40 2. Outdoor Unit • Model: LB-F3660CL - 40 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 41 P/NO : 3828A30074M APRIL, 2008...