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Model
LV-B2461CL LV-B2461HL LV-B2464CL LV-B2464HL LV-B1861CL LV-B1861HL LV-B1864CL LV-B1864HL V18LH
Pages
64
Size
2.24 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lv-b2461cl-lv-b2461hl-lv-b2464cl-lv-b2464hl-lv-b18.zip
Date

LG LV-B2461CL / LV-B2461HL / LV-B2464CL / LV-B2464HL / LV-B1861CL / LV-B1861HL / LV-B1864CL / LV-B1864HL / V18LH Service Manual ▷ View online

6. Natural wind by CHAOS logic
–17–
For more fresh feeling than other fan speed mode, press
the indoor fan Speed Selector and set to CHAOS mode.
In this mode, the wind blows like natural breeze by auto-
matically changing fan speed according to the CHAOS
logic.
Intake Air temp.
OUTDOOR FAN/COMP.
INDOOR FAN
: Setting fan speed
: LOW 
Cooling on temp.
(Setting temp.+0.5)
Setting CHAOS Natural wind
Setting temp.
Cooling off temp.
(Setting temp.-0.5)
: CHAOS Natural wind
: COMP ON
: COMP OFF 
GRAPH of Natural wind by the CHAOS logis (During Cooling operation)
Intake Air temp.
30sec
OUTDOOR FAN/COMP.
INDOOR FAN
: Setting fan speed
: LOW 
Heating off temp.
(Setting temp.+3.0)
Setting CHAOS Natural wind
Heating on temp.
(Setting temp.)
: CHAOS Natural wind
: COMP ON
: COMP OFF 
GRAPH of Natural wind by the CHAOS logis (During Heating operation)
LOW OR STOP 
–18–
7. Heating Mode Operation
The unit will operate according to the setting by the remote controller and the operation diagram is shown as
following.
• For Heating Model
INDOOR FAN
4-WAY VALVE
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
26
°
C
28
°
C
Indoor piping temp.
Intake Air temp.
Setting temp. +3.0˚C
(Compressor OFF)
Setting temp.
(Compressor ON)
minimum
1min.
minimum
3min.
Fan
Stops
Low
Fan
Low Fan
Low Fan
Fan Stop
Selected Fan
Selected
Fan
Low
Fan
Selected
Fan
minimum
3min.
minimum
30sec.
minimum
1min.
OUTDOOR FAN
COMPRESSOR
8. Hot-Start Control
• The indoor fan stops until the evaporator piping temperature will be reached to 28
.
• During heating operation, if piping temperatures falls below 26°C fan stops.
• The operation diagram is as following.
PIPING
TEMPERATURE
1min
COMPRESSOR
INDOOR FAN
ON
: Selected Fan
: Low Fan
: Fan Stop
28
°
C
(22˚C)
26
°
C
(20˚C)
–19–
9. Deice Control  
• Deicing operation is controlled by  timer and sensing the outdoor piping temperature.
• The first deicing starts only when the outdoor pipe temperature falls below -6°C after 45(30) minutes passed
from starting of heating operation.
• Deicing ends after 10(6) minutes passed from starting of deice operation or when the outdoor pipe temperature
rises over 12°C even if before 10(6) minutes.
• The second deicing starts only when the outdoor pipe temperture falls below -6°C after 45(30) minutes passed
from ending of the first deicing.
More than 45(30) minutes 
of heating operation
Within 
10(6) minutes
Deicing
Deicing
ON
OFF
ON
ON
ON
ON
OFF
OFF
COMPRESSOR
4-WAY VALVE
INDOOR FAN
-6
°
C
DEICE ON
12
°
C
DEICE OFF
The outdoor
piping Temp.
ON
More than 45(30) minutes 
of heating operation
HOT-
START
ON
OFF
ON
INDOOR FAN
Low Fan
Low Fan
Intake Air temp.
Setting temp. +1.0˚C
(Compressor ON)
Setting temp. -0.5˚C
(Compressor OFF)
Setting temp.
2min.58sec.
2min.58sec.
10min.
10min.
7min.
Within 7min. Cooling
Cooling
OUTDOOR FAN
COMPRESSOR
Selected
Fan
Selected
Fan
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
10. Soft Dry Operation
• During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 1°C, the compressor
OFF temperature is the setting temperature minus 0.5°C.
• When the room temperature rises over the compressor ON temperature, the operation mode is switched to the
cooling mode.
• When the room temperature falls between the compressor ON temperature and OFF temperature, the operation
mode is switched to the Soft Dry Operation.
In this temperature range, 10min. Dry Operation, 7min operation OFF. During 10min Dry operation, if the room
temperature falls below compressor OFF temperature, Compressor OFF.
• In micom dehumidify mode, control of fan speed is as following. 
12. Protection of the evaporator pipe from frosting
If the te
mperature of the indoor coil is below 0°C after 7 minutes from starting the compressor, the
compressor and the outdoor fan is stopped, and then after 3 minute delay of the compressor and
the temperature of the indoor coil is over 7°C, the compressor and the outdoor fan is reoperated.
Indoor fa
n operates at low speed (comp. OFF) or at selected speed (comp. ON)
13. Inlet grille open
Once the inlet grille is opened during operation of the unit, the unit automatically stops operation and the
lamps will be turned-off. But memorized functions are still available.
When the inlet grille is closed again, the unit become waiting state for operation. From then, the unit can be
operated by forced operation button or Start/Stop button of remote controller.
14. Test Operation
• When pressing forced operation switch about 3 seconds, the unit operates in cooling mode at high speed fan
regardless of room temperature and resets in 18 min.
• During test operation, if remote controller signal is received, the unit operates as remote controller sets.
15. Auto Restarting Operation 
• When the power is restored after a sudden power failure while in appliance operation, the mode before the
power failure is kept on the memory and the appliance should be on the automatically operates in the mode
on the memory.
• Operation Mode that is kept on the memory
- State of Operation ON/OFF
- Operation Mode/Setting Temp/Selected airflow Speed
- Sleep Timer Mode/Remaining Time of Sleep Timer(unit of hour)
–20–
11. Forced operation
• If you lose wireless remote controller, you can operate the unit with forced operation switch.
• The standard conditions are as following. 
• Unit operates in low fan mode for first 15 seconds, then switched to proper operation mode according to
intake Air temperature.
Heat pump Model
Room Temp
24°C
21°C
Room Temp
24°C
Room Temp 
21°C
Operation Mode
Cooling
Cooling
Soft Dry
Heating
FAN Speed
High
High
Soft Dry Rule
High
Setting Temp.
24°C
22°C
Air Intake Temperature
24°C
Cooling Model 
R
Forced
Operation Button
Press the Forced Operation Button.
•Press the Forced Operation Button once
  again to stop operation. 
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