LG LV-B1861HL Service Manual ▷ View online
–22–
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 consid-
• A place where drainage can be easily obtained.
• A place where noise prevention is taken into consid-
eration.
• 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
sunlight or rain exposure, be careful that heat radia-
tion from the condenser is not restricted.
tion 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
–31–
3-2. Installation on the ceiling
1) Connecting the pipes to the indoor unit
The pipe can be connected to right side, bottom
or back of the unit.
1. For the Right Side Piping
• After bending an end of the connecting tube, align the
center of the pipings and sufficiently tighten the flare
nut with fingers.
nut with fingers.
• Finally, tighten the flare nut with torque wrench until
the wrench clicks.
• Connect the Drain Hose insulated to the drain outlet.
Drain hose should be go through under the Hose
Bracket as shown in figure
Bracket as shown in figure
ƒŁ
.
• Hang the drain hose on the hose hanger and fix it to
the hole of the hose bracket with a screw.
2. For the Bottom Side Piping
• Remove the knock-out on the bottomside of Inlet Grille
• Align the center of the pipings and sufficiently tighten
• Align the center of the pipings and sufficiently tighten
the flare nut with fingers.
• Finally, tighten the flare nut with torque wrench until
the wrench clicks.
• Connect the Drain Hose insulated to the drain outlet.
• Hang the drain hose on the hose hanger and fix it to
• Hang the drain hose on the hose hanger and fix it to
the hole of cabinet bottom with a screw.
2) Connecting the Drain Hose
• The drain hose can be connected to not only the
right side but also left side of the unit.
• If the drain hose is connected to the left side, it
should go through the cabinet bottom.
• Hang the drain hose on the hose hanger and fix it to
the hole of cabinet bottom with a screw.
R
R
R
Drain Hose
Drain Hose
Piping
Hose
Bracket
1
3
4
5
2
Hose Hanger
Hose Hanger
Hose
Hanger
Hanger
BOTTOM
–32–
3-3. Installation on the wall or floor
1) Connecting the pipes to the indoor unit
1. For the Right Rear Piping
• Remove the knock-out at the back side of the cabinet.
• After bending an end of the connecting tube, align the
• After bending an end of the connecting tube, align the
center of the pipings and sufficiently tighten the flare
nut with fingers.
nut with fingers.
• Finally, tighten the flare nut with torque wrench until
the wrench clicks.
• Connect the Drain Hose insulated to the drain outlet.
• Tape the Drain Hose to the pipings to avoid coming
• Tape the Drain Hose to the pipings to avoid coming
off the drain-outlet.
2. For the Right Side Piping
• After bending an end of the connecting tube, align the
center of the pipings and sufficiently tighten the flare
nut with fingers.
nut with fingers.
• Finally, tighten the flare nut with torque wrench until
the wrench clicks.
• Connect the Drain Hose insulated to the drain outlet.
• Tape the Drain Hose to the pipings to avoid coming
• Tape the Drain Hose to the pipings to avoid coming
off the drain-outlet.
3. For the Right Bottom Piping
• Align the center of the pipings and sufficiently tighten
the flare nut with fingers.
• Finally, tighten the flare nut with torque wrench until
the wrench clicks.
• Connect the Drain Hose insulated to the drain outlet.
2) Connecting the Drain Hose
• The drain hose can be connected to not only right
side but also left side of the unit.
Taping
Drain Hose
Piping
Piping
Drain Hose
Connecting
Cable
Drain Hose
Piping
Drain Hose
REAR
BOTTOM
Taping
Taping
–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.
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.)
(Smaller Dia.)
Gas side piping
(Bigger Dia.)
(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
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