Piping Length And Elevation - LG FLEX MULTI SPLIT Installation Instructions Manual

Installation of Indoor, Outdoor Unit

Piping length and elevation

Multi Piping Type
Max total length
Capacity(Btu/h)
(A+B/A+B+C)
24k 30m(100ft)
36k 45m(150ft)
Indoor Capacity
(Btu/h)
9K
12K
24k
h1
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 (16.4~23.0ft).
8 Room Air Conditioner
Max length of
of all pipes each pipe
(A/B/C)
15m(50ft)
15m(50ft)
Gas
3/8"
3/8"
A
B
h1
B
Min length of
each pipe
(A/B/C)
3m(10ft)
3m(10ft)
Pipe Size
Liquid Standard Length
1/4" 7.5m(25ft)
1/4" 7.5m(25ft)
36k
h2
h1
Max Elevation
Max elevation
between each
between indoor
indoor unit and
outdoor unit (h1)
7.5m(25ft) 7.5m(25ft)
7.5m(25ft) 7.5m(25ft)
Additional
Refrigerant
20g/m(0.32oz/ft)
20g/m(0.32oz/ft)
A
B
C
h1
h1
units (h2)
h2
h2