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Model
LB-D2460HL
Pages
40
Size
805.53 KB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lb-d2460hl.pdf
Date

LG LB-D2460HL Service Manual ▷ View online

Refrigeration Cycle Diagram
• MODEL: LB-D2460HL
(
■ 
Rated performance for refrigerant line length of: 7.5m)
For installation over rated distance, 60g of refrigerant should be added for each meter.
ex) When installed at a distance of 15m, 450g of refrigerant should be added.
(15-7.5) x 60g = 450g
Pipe size(Diameter: ø)
Piping length(m)
Elevation(m)
MODEL
Gas
Liquid
Rated
Max.
Rated
Max.
LB-D2460HL
5/8"
3/8"
5
25
5
8
60
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGER
HEAT
EXCHANGER
COMPRESSOR
GAS SIDE
LIQUID SIDE
COOLING
HEATING
REVERSING
VALVE
CHECK VALVE
CAPILLARY TUBE
–7–
Additional
refrigerant
(g/m)
Wiring Diagram
MODEL: LB-D2460HL
• Indoor Unit
• Outdoor Unit
–8–
P/No: 3854A90008T
–9–
Operation Details
(1) The function of main control
1. Time Delay safety Control
• 3min
¡ƒ
The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle.
(Protection  of compressor)
2. Soft-Dry Operation
• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of
already being set to the best speed for Dry Operation by Micom Control.
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
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 
Intake Air temp.                   
Setting temp.+3°C
(Compressor OFF)
Setting temp.
(Compressor ON)
INDOOR FAN
Low
OFF         Low
Low
OFF
COMPRESSOR
ON
OFF
ON
OFF
ƒU
A point; While the indoor Heat-Exchanger temperature is higher than 40°C fan operates at low speed, when 
it becomes lower than 40˚C fan stops.
ƒU
B point; When the indoor Heat-Exchanger temperature is higher than 51°C, fan operates at seleted fan 
speed, when it becomes lower than 48°C, the fan operates at low speed.
–10–
4. Heating Mode Operation (Except Cooling Model)
The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
Hot Start
Low
Selecting
Fan Speed
minimum  3min
Selecting fan
speed
minimum
10sec.
1min
A
A
minimum
1min.
minimum
10sec.
B
5. Hot-Start Control
ƒU
The indoor fan stops until the evaporator piping temperature will be reached to 28°C.
ƒU
The operation diagram is as following.
PIPING
TEMPERATURE
1min
COMPRESSOR
INDOOR FAN
ON
26
°
C
: Selected Fan
: Low Fan
: Fan Stop
28
°
C
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