LG LAN181CNW, LAU181CNW, LA180CPI, LA180CPO Service Manual page 28

Installation
Installation of indoor, Outdoor unit
Read completely, then follow step by step.
1) Select the best location
1. Indoor unit
Do not have any heat or steam near the unit.
Select a place where there are no obstacles in front
of the unit.
Make sure that condensation drainage can be con-
veniently routed away.
Do not install near a doorway.
Ensure that the space around the left and right of
the unit is more than 50cm(19.7"). The unit should
be installed as high on the wall as possible, allowing
a minimum of 10cm(3.9") from ceiling.
Use a stud finder to locate studs to prevent unnec-
essary damage to the wall.
More than
50cm(19.7")
More than
2m(6.6ft)
CAUTION
Install the indoor unit on the wall where the height from the floors
more than 2m(6.6ft).
2. Outdoor unit
If an awning is built over the unit to prevent direct
sunlight or rain exposure, make sure that heat radia-
tion from the condenser is not restricted.
Ensure that the space around the back and sides is
more than 30cm(12") .
The front of the unit should have more than
70cm(27.5") of space.
Do not place animals and plants in the path of the
warm air.
Take the air conditioner weight into account and
select a place where noise and vibration are mini-
mum.
Select a place so that the warm air and noise from
the air conditioner do not disturb neighbors.
More than 30cm(12")
More than 70cm(28")
28 Room Air Conditioner
More than
10cm(3.9")
More than
50cm(19.7")
More than 60cm(24")
More than 30cm(12")
More
than 60cm(24")
Rooftop Installations:
If the outdoor unit is installed on a roof structure, be
sure to level the unit. Ensure the roof structure and
anchoring method are adequate for the unit loca-
tion. Consult local codes regarding rooftop mount-
ing.
2) Piping length and elevation
Pipe Size
Capacity
(Btu/h)
GAS LIQUID
18k 1/2" 1/4"
Outdoor unit
A
Indoor unit
B
A
Oil trap
Indoor unit
In case more than 5m(16.4ft)
CAUTION
• Capacity is based on standard length and maximum allowance
length is on the basis of reliability.
• Oil trap should be installed every 5~7 meters(16.4~23ft).
Standard Max. Max. Additional
length Refrigerant
Length Elevation
(m) (m) (m)
B A
7.5 15 30
(24.6ft) (49.2ft) (98.4ft)
Indoor unit
A
B
Outdoor unit
Outdoor unit
B
(g/m)
20