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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Installation of Indoor, Outdoor Unit
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-
eration.
• Do not install the unit near the door way.
• 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 radi-
ation 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
• If 36K Model is installed at a distance of 15m, 225g of
refrigerant should be added (15-7.5) x 30g = 225g
• Capacity is based on standard length and maximun
allowance length is on the basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.
Indoor unit
Outdoor unit
B
A
More than
30cm
More than
30cm
More than
70cm
Sunr
oof
Fence or
obstacles
300
mm
300
mm
300
mm
300
mm
100mm
or more
300mm
or more
Service space when the unit is mounted
under the celling.
Service space when the unit is mounted
on the floor/wall.
36K BTU/h
42K BTU/h
48K BTU/h
60K BTU/h
30
35
40
45
Capacity
Gas
5/8"
3/4"
3/4"
3/4"
Liquid
3/8"
3/8"
1/2"
1/2"
Elevation B(m)
Length A(m)
*Additional
refrigerant
(g/m)
Pipe Size
(Diameter: Ø)
Standard
7.5
7.5
7.5
7.5
Standard
5
5
5
5
Max.
15
15
15
15
Max.
10
10
10
10
