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Model
LV-B1861CL LV-B1861HL LV-B1864CL LV-B1864HL LV-B2461CL LV-B2461HL LV-B2464CL LV-B2464HL
Pages
65
Size
2.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lv-b1864hl.zip
Date

LG LV-B1861CL / LV-B1861HL / LV-B1864CL / LV-B1864HL / LV-B2461CL / LV-B2461HL / LV-B2464CL / LV-B2464HL Service Manual ▷ View online

2. LV-B2461HL
4. LV-B1864HL/2464HL
3. LV-B1861HL
5. LV-B2464HL(Australia only)
–12–
CONVERTIBLE(HEAT PUMP)
(OUTDOOR)
(OUTDOOR)
COMP.
BL
RD
GN/YL
GN/YL
GN/YL
BK
BK
L3 L2 
L1 
CAPACITOR
REVERSING
VALVE
THERMISTOR
CAPACITOR
FAN
MOTOR
R
C
S
TO INDOOR UNIT
3
4
5
6
7
TERMINAL
BLOCK
HIGH PRESSURE S/W(FOR HEATING)
BK
BK
BK
BK
WH
BR
BL
BK
BK
YL
BR(OR)
YL
CONVERTIBLE(HEAT PUMP)
(OUTDOOR)
COMP.
BL
RD
GN/YL
GN/YL
GN/YL
BK
BK
L3 L2 
L1 
CAPACITOR
REVERSING
COIL
THERMISTOR
CAPACITOR
FAN
MOTOR
R
C
S
TO INDOOR UNIT
3
4
5
6
7
TERMINAL
BLOCK
HIGH PRESSURE S/W(FOR HEATING)
BK
BK
BK
BK
WH
BR
BL
BK
BK
YL
BR(OR)
YL
T/B
CONVERTIBLE(HEAT PUMP)
COMP.
CAPACITOR
BL
RD
YL
BK  
T/B
OR(BR)
FAN
MOTOR
R
C
S
H
C
F
GN/YL
GN/YL
GN/YL
BK
BK
BK
REVERSING
VALVE
TO INDOOR UNIT
3
4
5
6
7
TERMINAL
BLOCK
BK
BK
BR
BL
TO INDOOR UNIT
WIRING DIAGRAM(OUTDOOR)
3854A20075W
COMP.
R
BL
BL
YL
YL
YL
BK
WH
OR(BR)
RD
S
C
CAPACITOR
START CAPACITOR
H
C
F
FAN
MOTOR
BK
3
4
3
4
BK
BR
BK
TERMINAL
BLOCK
SOFT START PCB
3
4
5
6
7
GN/YL
REVERSING
VALVE
CN-COMP
CN-POWER
CN-
S/CAPA
T/B
BL
BR
BK
BK
GN/YL
Operation Details
(1) The function of main control
1. Time Delay Safety Control
• 3min… The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle.
(Protection  of compressor)
• 5sec… Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind.
• 30sec… The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating 
operation is OFF or switched to the other operation mode while compress is off.
While compressor is running, it takes 3~5 seconds to switch.
2. Airflow Direction Control
• This function is to swing the louver up and down automatically and to set it at the desired position. 
• The procedure is as the following. 
1st   ; Press the ON/OFF Button to operate the product.
2nd  ; Press the Airflow Direction Control Button to swing the louver up and down automatically. 
3nd  ; Repress the Airflow Direction Control Button to set the louver as the desired position. 
MODE 0
1
2
3
4
5
6
7
135
°
Cooling
MODE
MODE
MODE
MODE
MODE
MODE
MODE
9
MODE
(CLOSE)
Heating
OPEN
135
°
12
°
Cooling
Heating
Heating
Heating
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MODE 7
MODE 8
MODE 9
CLOSE
OPEN
135
°
12
°
Cooling
Heating
Heating
Heating
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MODE 7
MODE 8
MODE 9
CLOSE
Heating
OPEN
135
°
12
°
Cooling
Heating
Heating
Heating
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MODE 7
MODE 8
MODE 9
CLOSE
–13–
For Heating Model
• Airflow direction control figure when installed on
the floor.
• Airflow direction control figure when installed
under the ceiling.
3. Cooling Mode Operation
• When selecting the Cooling(    ) Mode Operation, the unit will operate according to the setting by the remote con-
troller and the operation diagram is as following
4. Cooling or Heating Mode with Sleep Mode Auto Operation
• When selecting the Cooling(     ) or the Heating( 
) combined with the Sleep Mode Auto Operation(
), the
operation diagram is as following.
Cooling Mode with the Sleep Mode
• The setting temperature will be raised by 1°C 30minutes  later and by 2°C 1 hour later.
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
Heating Mode with the Sleep Mode. 
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
Intake Air temp.                   
COMP. ON
(SET TEMP.+0.5°C) 
COMP. OFF
(SET TEMP. -0.5°C)
More than
More than
3 minutes
3 minutes
INDOOR FAN
Low
Low
Low
Low
Low
COMPRESSOR
ON
OFF
ON OFF
ON
30 minutes
30 minutes
1°C
1°C
–14–
Setting Temp. +3°C
(Compressor OFF) 
Setting Temp.
(Compressor ON)
Indoor Fan
Low.
Low.
Low.
Low.
Low.
Low.
Compressor
ON
OFF
ON
OFF
ON
OFF
Intake Air temp.
COMP. ON
(SET TEMP.+0.5°C) 
COMP. OFF
(SET TEMP. -0.5°C)
More than
More than
3 minutes
3 minutes
Selecting
Selecting
Selecting
fan speed
fan speed
fan speed
COMPRESSOR
ON
OFF
ON OFF
ON
INDOOR FAN                                              
Low                                                   Low 
5. Auto Operation 
• The operation procedure is as following. (Cooling & Heating Model)
*
If initial mode is decided, that mode is continued without the room temperature changing.
*
For cooling operation mode over 24°C setting temperature and fan speed are same as cooling only model.
• Auto Operation for Cooling. (Cooling only Model)
–15–
Press Start/Stop Button
Select Auto Operation Mode
Check the Room temperature
Operation mode
Indoor fan speed
are automatically decided by Fuzzy rule.
Setting temperature
Intake-air
temperature
Operation Mode
Heating
Soft Dry 
Cooling
Operation Condition 
Intake-air Temperature
Setting temperature
Fan speed 
Air Direction Control
Over 26°C
25°C
Over 24°C~below 26°C
Intake air -1°C
Over 22°C~below 24°C
Intake air -0.5°C
Over 20°C~below 22°C intake air temperture
below 20°C
20°C
Over 20°C~below 30°C
Fuzzy control
below  20°C
20°C
over 30°C
30°C
below   21°C
below   
24°C
~
Over   24°C
Over   
21°C
When Auto Operation
initial start
When pressing room  temp-
erature setting button 
during Auto Operation
Controlled
by Fuzzy logic
In this mode, when
pressing the verti-
cal air diretion con-
trol.
Button, louvers
moves to 1/f
rhythm (refer to
page 17)
Intake-Air temp 
Setting Temp. +0.5°C
(Compressor OFF) 
Setting Temp.-0.5°C
(Compressor ON)
Indoor Fan
Compressor
ON
ON
OFF
OFF
Fuzzy Speed
Page of 65
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