LG LV-B2461CL User manual

Room Air Conditioner
(Convertible Type)
SVC MANUAL(Exploded View)
MODEL : LV-B2461CL/ B2461HL
LV-B2464CL/ B2464HL
LV-B2464BL
LV-B1861CL/ B1861HL
LV-B1864CL/ B1864HL
LV-H246BLA0
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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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Contents
Functions .................................................................................................................................3
Product Specifications (Cooling Only)..................................................................................5
Product Specifications (Cooling & Heating).........................................................................6
Dimensions..............................................................................................................................7
Refrigeration Cycle Diagram..................................................................................................9
Wiring Diagram......................................................................................................................11
Operation Details ..................................................................................................................14
Display Function ...................................................................................................................22
Self-diagnosis Function........................................................................................................22
Installation .............................................................................................................................23
Operation ...............................................................................................................................40
Disassembly of the parts (Indoor Unit) ...............................................................................42
2-way, 3-way Valve.................................................................................................................46
Cycle Troubleshooting Guide...............................................................................................52
Electronic Parts Troubleshooting Guide.............................................................................53
Electronic control device......................................................................................................57
Schematic Diagram ...............................................................................................................58
Exploded View ......................................................................................................................59

Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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Functions
• Room temperature sensor. (Thermistor)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 seconds at the starting.
• Restarting is inhibited for approx. 3 minutes.
• High, Med, Low, Chaos
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Deice Mode or Hot Start Mode (only Heating Model)
--- Lights up during compressor running(only Cooling Model)
• Intermittent operation of fan at low speed.
• The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The fan is switched to intermittent or irregular operation
• The fan speed is automatically switched from high to low speed.
• The louver can be set at the desired position or swing
up and down, right and left (not on all models) automatically.
• The setting temperature, indoor fan speed and desired
operation made are automatically set by fuzzy rule.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
• Both the indoor and outdoor fan
stops during deicing.
• Hot start after deice ends.
• The indoor fan stops until the
evaporator piping temperature will be
reached at 28°C(22˚C).
Deice (defrost) control (Heating)
Hot-start Control (Heating)
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
Auto Operation

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Soft Dry Operation Mode.( )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Fan Speed Selection
Room Temperature Display
Temperature Setting
Setting the Time or Timer
Timer Selection
Timer Setting
Timer Cancel
Sleep Operation
Airflow Direction Control
(Cooling
model only) (Heating
model only)
TEMPERATURE LOW HIGH
(Low) (Med) (High) (CHAOS)
Cooling Operation Mode.( )
Heating Operation Mode.( )
Auto Operation Mode.( )
Fan Operation Mode
ON OFF
SET
CANCEL
: High:39°CLOW:11°C
: OFF, ON, OFF ON
: Cancel Sleep Mode, Timer ON or Timer OFF.
: 1, 2, 3, 4, 5, 6, 7hr, Off Timer
: Fan Operates without cooling. (Cooling model only)
Cooling Heating
Down to 18°C
Up to 30°C
Down to 16°C
Up to 30°C
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only

Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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Product Specifications (Cooling Only)
Model Name
Item Unit
Cooling Capacity Btu/h(kcal/h) 18,000(4,536) 24,000(6,048) 24,000(6,048)
Moisture Removal /h 2.5 3.5 3.5
Power Source
ø , V, Hz 1ø220-240V, 50Hz
Indoor 14.0 16.0 16.0
Outdoor 50 50 50
Input W 1,935 1,850 2,500 2,500
Running Current A 9.0 9.2 11.9 11.9
E.E.R. Btu/h-W 9.3 9.7 9.6 9.6
Indoor 1,200 x 205 x 615
Outdoor 870 x 655 x 320
Indoor 30
Outdoor 57 57 57
Refrigerant (R-22) g 880 1,050 1,550 1,550
Airflow Direction Control (Up & Down) O O O
Remocon Type L.C.D Wireless
Liquid 1/4" (6.35) 1/4" (6.35) 1/4" (6.35)
Gas 1/2" (12.7) 5/8" (15.88) 5/8" (15.88)
Sleeping Operation O O O
Drain Hose O O O
Connecting Wire 0.75mm2
Main Power Cable 1.5mm22.5mm22.5mm2
2.0mm2:for the Middle East)
Time Delay Safety Function O
Air Circulation O
Soft Dry O
Fan Speed (Indoor) 3 (Hi, Med, Low)
Timer 24Hrs
Self-Diagnosis O
Auto-Restart O
Air Circulation m3/min
Dimensions
(W H D)
Net. Weight
mm
kg
LV-B1861CL LV-B1864CL LV-B2461CL LV-B2464CL
Service Valve &
Connecting Tube

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Product Specifications (Cooling & Heating)
Model Name
Item Unit
Cooling Capacity Btu/h(kcal/h)
Heating Capacity Btu/h(kcal/h)
Moisture Removal /h
Power Source
ø , V, Hz
Air Circulation Indoor m3/min
Outdoor
Input Cooling W
Heating
Running Current Cooling A
Heating
E.E.R.(Cooling) Btu/h-W
C.O.P.(Heating) w/w
Dimensions Indoor mm
(W H D) Outdoor
Net. Weight Indoor kg
Outdoor
Refrigerant (R-22) g
Airflow Direction Control (Up & Down)
Remocon Type
Service Valve & Liquid
Connecting Tube Gas
Sleeping Operation
Drain Hose
Connecting Wire
Main Power Cable
Time Delay Safety Function
Air Circulation
Soft Dry
Fan Speed (Indoor)
Timer
Self-Diagnosis
Auto-Restart
19,000(4,788) 24,000(6,048)
20,000(5,040) 24,000(6,048)
2.5 3.5
1ø, 220-240V~, 50Hz
14.5 16
45 50
1,950 1,850 2,670 2,650
1,860 1,850 2,570 2,550
8.9 9.2 12.3 12
8.5 9.2 11.9 11.5
9.74 8.98 9.05
3.15 2.73 2.76
1,200 x 205 x 615
870 x 655 x 320
30
58 58
1,310 1,280 1,390 1,730
O
L.C.D Wireless
1/4" (6.35)
1/2" (12.7) 5/8"(15.88)
O
O
0.75mm2
1.5mm2
2.5mm2
2.0mm2:for the Middle East)
O
O
O
3 (Hi, Med, Low)
24Hrs
O
O
LV-B1861HL LV-B1864HL LV-B2461HL LV-B2464HL
LV-B2464BL
LV-H246BLA0

Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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250mm
36mm
36mm 1076mm
1200mm
205mm
615mm
392mm
265mm
468mm
R
63mm
38mm
175mm
(Installation Plate)
(Rear Side)
Dimensions
(1) Indoor Unit

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
(2) Outdoor Unit
Gas side
3-way valve
Liquid side
3-way valve
W
L6L7 L8 L9
L4
L11
L10
D
L1
L2
L5 L3
MODEL
DIM
W mm 870
H mm 655
D mm 320
L1 mm 370
L2 mm 25
L3 mm 340
L4 mm 630
L5 mm 25
L6 mm 546
L7 mm 162
L8 mm 162
L9 mm 54
L10 mm 74.5
L11 mm 79
LV-B1861CL/HL, LV-B1864CL/HL, LV-B2461CL/HL,
LV-B2464HL, LV-B2464BL, LV-B2464CL, LV-H246BLA0

Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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Refrigeration Cycle Diagram
• LV-B1861CL
• LV-B1864CL
• LV-B2461CL
• LV-B2464CL
Pipe size(Diameter: ) Piping length(m) Elevation(m)
MODEL Gas Liquid Rated Max Rated Max
LV-B1861CL 1/2" 1/4" 5 15 5 8
LV-B1864CL 1/2" 1/4" 5 15 5 8
LV-B2461CL 5/8" 1/4" 5 20 5 8
LV-B2464CL 5/8" 1/4" 5 20 5 8
INDOOR UNIT OUTDOOR UNIT
HEAT
EXCHANGER
(EVAPORATOR)
HEAT
EXCHANGER
(CONDENSER)
COMPRESSOR
GAS SIDE
LIQUID SIDE
CAPILLARY TUBE
For installation over rated distance, 30g of refrigerant should be added for each meter.
ex) When installed at a distance of 15m, 300g of refrigerant should be added.
(15-5) x 30g = 300g

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
• LV-B1861HL
• LV-B1864HL
• LV-B2461HL
• LV-B2464HL/LV-B2464BL
• LV-H246BLA0
For installation over rated distance, 30g of refrigerant should be added for each meter.
ex) When installed at a distance of 15m, 300g of refrigerant should be added.
(15-5) x 30g = 300g
INDOOR UNIT OUTDOOR UNIT
HEAT
EXCHANGER
HEAT
EXCHANGER
COMPRESSOR
GAS SIDE
LIQUID SIDE
CAPILLARY TUBE
COOLING
HEATING
REVERSING
VALVE
CHECK VALVE
CAPILLARY TUBE
Pipe size(Diameter: ) Piping length(m) Elevation(m)
MODEL Gas Liquid Rated Max Rated Max
LV-B1861HL 1/2" 1/4" 5 15 5 8
LV-B1864HL 1/2" 1/4" 5 15 5 8
LV-B2461HL 5/8" 1/4" 5 20 5 8
LV-B2464HL
LV-B2464BL 5/8" 1/4" 5 20 5 8
LV-H246BLA0