Outdoor Unit; Installation; Select The Best Location; Piping Length And Elevation - LG LA090CP Service Manual

Installation

Installation
Selection of the Best Location
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. The unit should be
installed as high on the wall as possible, allowing a
minimum of 10cm from ceiling.
• Use a stud finder to locate studs to prevent unnec-
essary damage to the wall.
More
than 50cm
More than 2m
CAUTION:
Install the indoor unit on the wall
where the height from the floor is more than 2
meter.

Outdoor unit

• If an awning is built over the unit to prevent direct
sunlight or rain exposure, make sure that heat
radiation from the condenser is not restricted.
• Ensure that the space around the back and sides
is more than 10cm. The front of the unit should
have more than 70cm 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.
10 Room Air Conditioner
More than 10cm
More
than 50cm
More than 10cm
More than 70cm

Piping Length and Elevation

Pipe Size
Capacity
(Btu/h)
GAS LIQUID
3/8"(Ø9.52) 1/4"(Ø6.35)
5k~14k
1/2"(Ø12.7) 1/4"(Ø6.35)
1/2"(Ø12.7) 1/4"(Ø6.35)
18k~28k 5/8"(Ø15.88) 1/4"(Ø6.35)
5/8"(Ø15.88) 3/8"(Ø9.52)
5/8"(Ø15.88) 3/8"(Ø9.52)
30k~38k
3/4"(Ø19.05) 3/8"(Ø9.52)
Outdoor unit
A
Indoor unit
B
Oil trap
Indoor unit
If the piping length is more than 5m
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.
More than 60cm
More than 10cm
More
than 60cm
Standard Max. Max.
Length Elevation Length
(m) (m) (m)
B A
4 or 7.5 7 15
4 or 7.5 7 15
4 or 7.5 15 30
4 or 7.5 15 30
4 or 7.5 15 30
7.5 15 30
7.5 15 30
Indoor unit
A
B
Outdoor unit
Outdoor unit
A
B
Additional
Refrigerant
(g/m)
20
20
20
20
30
30
50
I