DOWNLOAD LG LB-E4880CL / LB-E6080CL Service Manual ↓ Size: 1.55 MB | Pages: 74 in PDF or view online for FREE

Model
LB-E4880CL LB-E6080CL
Pages
74
Size
1.55 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lb-e4880cl-lb-e6080cl.zip
Date

LG LB-E4880CL / LB-E6080CL Service Manual ▷ View online

3. Gas Charging 
(After Evacuation)
• Procedure 
(1) Connect the charge hose to the charging
cylinder. 
–  Connect the charge hose which you dis-
connected from the vacuum pump to the valve
at the bottom of the cylinder. 
– If you are using a gas cylinder, also use a scale
and reverse the cylinder so that the system can
be charged with liquid. 
(2) Purge the air from the charge hose.   
–  Open the valve at the bottom of the cylinder
and press the check valve on the charge set to
purge the air. (Be careful of the liquid
refrigerant).  The procedure is the same if
using a gas cylinder. 
(3) Open the valve (Lo side on the charge set and
charge the system with liquid refrigerant.
–  If the system can not be charged with the
specified amount of refrigerant, it can be
charged with a little at a time (approximately
150g each time) while operating the air
conditioner in the cooling cycle; however, one
time is not sufficient, wait approximately 1
minute and then repeat the procedure
(pumping down-pin).
(4) Immediately disconnect the charge hose from
the 3-way valve’s service port. 
–  Stopping partway will allow the gas to be
discharged.
– If the system has been charged with liquid
refrigerant while operating the air conditioner
turn off the air conditioner before disconnecting
the hose. 
(5) Mount the valve stem nuts and the service
port nut. 
– Use torque wrench to tighten the service port
nut to a torque of 1.8 kg.m.
– Be sure to check for gas leakage. 
\
This is different from previous procedures.
Because you are charging with liquid refrigerant
from the gas side, absolutely do not attempt to
charge with larger amounts of liquid refrigerant
while operating the air conditioner. 
Lo
Charging
cylinder 
Outdoor unit
Indoor unit
Liquid side
Gas side
CLOSE
Open
3-Way
valve
OPEN
Open
Check valve
(1)
2-Way
valve
3-Way
valve
–27–
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
• Intermittent operation of fan at low speed.
• The setting temperature, indoor fan speed and desired operation mode are automatically set.
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
Soft Dry Operation Mode
Auto Operation
–3–
–4–
Remote Controller
Operation ON/OFF
Operation Mode Selection
Fan Speed Selection
Room Temperature Display
Temperature Setting
Setting the Time or Timer
(Cooling 
model only)
(Low)
(Med)
(High)
Cooling Operation Mode (       )
Soft Dry Operation Mode (       )
Fan Operation Mode
HI
MED
LO
Set
: High:39°C
¡Œ
LOW:11°C
: Fan Operates without cooling & heating
Cooling
Down to 18°C
Up to 30°C
,
Although the air conditioner is turned off by a power failure, it is restarted
automatically after a power resupply.
–10–
Installation of Indoor, Outdoor Unit
1. Selection of the best location
1) Indoor unit 
Select location
Install the air conditioner in the location that satis-
fies the following conditions.
• The place shall easily bear a load exceeding four
times the indoor unit’s weight.
• The place shall be able to inspect the unit as the
figure.
• The place where the unit shall be leveled.
• The place shall allow easy water drainage.(Suit-
able dimension “H” is necessary to get a slope to
drain as figure.)
• The place shall easily connect with the outdoor
unit.
• The place where the unit is not affected by an
electrical noise.
• The place where air circulation in the room will be
good .
• There should not be any heat source or steam
near the unit.
2) Outdoor unit
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not restrict-
ed. 
• There should not be any animals or plants which
could be affected by hot air discharged. 
• Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
More than
30cm
More than
30cm
More than
70cm
Fence or
obstacles
Sunr
oof
H
600
600
Top view
(unit: mm)
Front view
Front
Inspection hole
(600X600)
Control box
1000
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