DOWNLOAD LG LV-B1861HL Service Manual ↓ Size: 2.17 MB | Pages: 61 in PDF or view online for FREE

Model
LV-B1861HL
Pages
61
Size
2.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lv-b1861hl.zip
Date

LG LV-B1861HL Service Manual ▷ View online

–33–
1) Connecting the pipes to the Outdoor
unit
1. Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
2. Finally, tighten the flare nut with torque wrench
until the wrench clicks. 
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the arrow on
the wrench.   
1) Checking the Drainage
1. Remove the Air Filter.
• To remove air filter, take hold of tab and pull
slightly upwards.
2. Check the drainage.
• Spray one or two glasses of water upon the
evaporator.
• Ensure that water flows drain hose of indoor unit
without any leakage.
4. Connecting Pipes to the Outdoor Unit
5. Checking the Drainage
R
Liquid side piping
(Smaller Dia.)
Gas side piping
(Bigger Dia.) 
Torque wrench
Outdoor unit 
R
Pipe Size      
Torque     
Liquid Side
1/4"
1.8kg·m
3/8"
4.2kg·m
Gas Side
1/2"
5.5kg·m 
5/8"
6.6kg·m 
–34–
1) Connecting cables to the Indoor Unit 
1) Remove the Air guide - L by loosening 2
screws after removing the Inlet grille from the
Indoor unit.
2) Connect the wires to the terminals on the con-
trol board individually according to the outdoor
unit connection.
• Ensure that the color of the wires of outdoor
unit and the terminal No. are the same as
those of indoor unit respectively
R
AIR GUIDE-L
INDOOR UNIT
Control
Panel
1
2
Clamp
Terminals on the indoor unit
POWER
INPUT
GN/YL
POWER
INPUT
GN/YL
Terminals on the indoor unit 1(L) 2(N)
3
4
Terminals on the outdoor unit
3
4
Terminals on the outdoor unit
3
4
5
6
7
1(L) 2(N)
3
4
5
6
7
8
• Cooling & Heating type
• Cooling only type
NORMAL CROSS-
SECTIONAL AREA 
• 2.5mm
2
(24K)
• 2.0mm
2
(18K:for the Middle East)
• 1.5mm
2
(18K:for the other area) 
NORMAL CROSS-
SECTIONAL AREA 
• 2.5mm
2
(24K)
• 2.0mm
2
(18K:for the Middle East)
• 1.5mm
2
(18K:for the other area) 
NORMAL
CROSS-
SECTIONAL
AREA
0.75mm
2
The power cord connected to the
indoor unit should be complied with
the following specifications 
(Type H05VV-F(Indoor) 
approved by HAR or SAA).
The power connecting cable
connected between the indoor and 
outdoor unit should be complied 
with the following specifications  
(Type H07RN-F approved by HAR or SAA).
The connecting cable connected
between the indoor and outdoor unit
should be complied with the
following specifications 
(Type H07RN-F approved by HAR or SAA).
CAUTION
Ø8.0mm
Ø10.0mm
Ø8.0mm
Ø10.0mm
Ø6mm
6. Connecting Cables between Indoor Unit and Outdoor Unit
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
For the heat pump model, put the 0.75mm
2
cable(thinner cable) on the clamp and tighten it with a plastic clamp to the oth-
er boss of the control panel.
4) In Australia, the length of power supply cord measured from the entry of the power supply cord to the middle of live pin on
the power plug should be over 1.8m.
–35–
3) Connecting the cable to Outdoor Unit
1. Remove the Cover control from the unit by loosening
a screw.
Connect the wires to the terminals on the control
board individually as following. 
2. Secure the cable onto the control board with the hold-
er (clamper). 
3. Refix the cover control to the original position with the
screw.
4. Use a recongnized circuit breaker 20A(18K, 24K)
between the power source and the unit. A disconnec-
tion device to adequately disconnect all supply lines
must be fitted.
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring,
be guided by the circuit diagram pasted on the inside of control box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from
vibrations to which the unit is subjected during the course of transportation. Check them and
make sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out of the
wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked
on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the
normal function of a overload protection device.
• Proper starting power is not given to the compressor.
10) The means for disconnection from a power supply shall be incorporated in the fixed wiring and
have an air gap contact separation of at least 3mm in each active(phase) conductors.
Outdoor unit
Terminal block
Connecting 
cable
Cover control
Holder for 
connecting
cable
Over 5mm
Holder for 
power supply
cord
Power supply 
cord
–36–
4) Form the pipings 
1. Wrap the connecting portion of indoor unit with
the Insulation material and secure it with two
Plastic Bands. (for the right pipings)
• If you want to connect an additional drain hose, the
end of the drain-outlet should keep distance from the
ground. (Do not dip it into water, and fix it on the wall
to avoid swinging in the wind.) 
2. Tape the Pipings, drain hose and Connecting
Cable from bottom to top.
3. Form the pipings gathered by taping along the
exterior wall and fix it onto the wall by saddle or
equivalent.
2. Tape the Pipings and Connecting cable from
bottom to top.
3. Form the pipings gathered by taping along the
exterior wall, and make the trap prevent water
from entering into the room. 
4. Fix the pipings onto the wall by saddle or
equivalent. 
In case of the Outdoor unit being installed
below position of the Indoor unit. 
In case of the Outdoor Unit being installed
above position of the Indoor Unit. 
Trap is required to prevent water from entering 
into electrical parts.
Seal a small opening
around the pipings
with gum type sealer.
Taping
Drain hose
Pipings
Connecting
cable
Plastic Band
Power supply
cord
Seal a small opening 
around the pipings 
with gum type sealer.
Trap
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