LG LV-B2461CL / LV-B2461HL / LV-B2464CL / LV-B2464HL / LV-B1861CL / LV-B1861HL / LV-B1864CL / LV-B1864HL / V18LH Service Manual ▷ View online
–21–
Note)
For normal operation after checking by test mode, you should press SW1 nine times for resetting or reconnect
the power cord.
the power cord.
Self-diagnosis Function
1. Protection of the evaporator pipe from frosting
If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
2. Thermistor Cut Off or Short
Cut Off/Short : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)
• Coolling, Soft Dry, Fan, Heating
• Timer Mode
• Sleep Mode
• Hot-start, Deice
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Deice Indicator
• Coolling, Soft Dry, Fan, Heating
• Timer Mode
• Sleep Mode
• Outdoor Unit Operating
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Outdoor Unit Operation
1. Heating Model
2. Cooling Model
Display Function
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1. Selection of the best location
1) Indoor unit
• There should not be any heat source or steam near
the unit.
• There should not be any obstacles to prevent the air
circulation.
• A place where air circulation in the room will be good.
• A place where drainage can be easily obtained.
• A place where noise prevention is taken into consider-
• A place where drainage can be easily obtained.
• A place where noise prevention is taken into consider-
ation.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the wall,
• Ensure the spaces indicated by arrows from the wall,
ceiling, or other obstacles.
2) Outdoor unit
• If an awning is built over the unit to prevent direct sun-
light or rain exposure, be careful that heat radiation
from the condenser is not restricted.
from the condenser is not restricted.
• 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.
3) Piping length and the elevation
1. Installation of Indoor, Outdoor Unit
More than
20cm
More than eye-level
More than
20cm
R
R
More than
20cm
More than
20cm
(Ceiling installation)
(Floor/Wall installation)
More than 10cm
More than 10cm
More than 70cm
Indoor unit
Outdoor unit
B
A
MODEL
18K BTU
1/2"
1/4"
7
15
24K BTU
5/8"
1/4"
7
20
5/8"
3/8"
GAS
LIQUID
50Hz
60Hz
5
8
30
5
8
30
Elevation B(m)
Length A(m)
* Additional
refrigerant
(g/m)
Pipe Size
Rated
Rated
Max.
Max.
• If 18K or 24K Model is installed at a distance of 15m, 240g of refriger-
ant should be added ........................................................(15-7)x30g
Installation
–23–
2. Indoor unit installation
■
Before Installing, prepare Installation Plates
• 'Installation Plates' are attached at the bottom of
indoor unit.
Detach them by removing each 3 screws at both
sides.
Detach them by removing each 3 screws at both
sides.
• Detach 'Side Plate (R,L)' by removing each 2 screws
on both sides.
• Pull the upper right and left side of 'Inlet Grille' to the
front, and it will stop at slightly tilted position.
• Unhook the 'Inlet hanger' from the 'Hanger screw' on
the both left and right side.
• Detach the 'Inlet Grille' from the Indoor Unit.
1) Installation on the ceiling
• Measure and mark the position for the Suspen-
sion bolts and the piping hole.
• Drill the hole for anchor nut on the ceiling.
※
Before secure the Installation Plates, select the bent
direction of the Installion Plate to the inside or the
outside according to the installation circumstances.
direction of the Installion Plate to the inside or the
outside according to the installation circumstances.
• Drill the piping hole on the wall slightly tilted to the
outdoor side using a ø70 hole-core drill.
R
1076
Suspension
bolt
Center-line for the
piping hole
265
1236
265
Install Plate
1)
2)
R
5~7mm
Indoor
Outdoor
WALL
Side Plate
Inlet Grille
Inlet hanger
Hanger
screw
–24–
• Insert the nuts and washer onto the suspension bolts
for locking the suspension bolts on the ceiling.
• Mount the suspension bolts to the anchor-nuts firmly.
• Secure the Installation plates onto the Suspension
• Secure the Installation plates onto the Suspension
bolts (adjust level roughly.) using nuts, washers and
spring washers.
spring washers.
• Engage 2 hooks on the both left and right side
of the unit to the lower slot of Installation Plates.
• Adjust a level with a level gauge on the direction
of left-right, back-forth by adjusting suspension
bolts.
• Move the hooks on the unit to the upper slot of
Installation Plates. Then the unit will be declined
to the bottomside so as to drain well.
Washer
Nut
Suspension
bolts
Ceiling
Anchor nut
Suspension
bolts
Spring
washer
washer
max.
12mm
Washer
Nut
1)
2)
Suspension
bolt
Installation plate
Adjust a level
R
Level gauge
Lower slot
R
R
Upper slot
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