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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Installation
Piping Length and Elevation
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
If 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.
Pipe Size
Capacity
(Btu/h)
GAS
LIQUID
Max.
Length
A
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
5k~14k
3/8"(Ø9.52)
1/4"(Ø6.35)
4 or 7.5
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
20
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
18k~28k
5/8"(Ø15.88)
1/4"(Ø6.35)
4 or 7.5
5/8"(Ø15.88)
3/8"(Ø9.52)
4 or 7.5
30k~38k
5/8"(Ø15.88)
3/8"(Ø9.52)
7.5
3/4"(Ø19.05)
3/8"(Ø9.52)
7.5
50
30
30
20
15
30
15
30
30
30
30
7
15
7
15
15
15
15