Piping Length And Elevation - LG MFL39817319 Installation Manual

Installation of Indoor, Outdoor Unit

Piping length and elevation

Multi Piping Type
Max total length
Outdoor Unit
of all pipes
Capacity
(A+B)/(A+B+C)/
(Btu/h class)
(A+B+C+D)
18k 50(164)
24k 75(246)
36k 75(246)
Indoor unit
Capacity
(Btu/h class)
9k
12k
18k
CAUTION: Capacity is based on standard length and maximum allowance
length is on the basis of reliability.
12 Multi Air Conditioner
Max length of Min length of
each pipe
(A/B/C/D)
25(82)
25(82)
25(82)
Pipe Diameter
Unit : mm(inch)
Gas
9.52(3/8)
9.52(3/8)
12.7(1/2)
Max Elevation
between each
each pipe
indoor unit and
(A/B/C/D)
outdoor unit (h1)
3(10) 15(49)
3(10) 15(49)
3(10) 15(49)
Standard
Pipe Length
Unit : m(ft)
Liquid
6.35(1/4)
6.35(1/4)
6.35(1/4)
A
B
C
D
Max elevation
between indoor
units (h2)
7.5(25)
7.5(25)
7.5(25)
Additional
Refrigerant
Unit : g/m(oz/ft)
7.5(25) 20(0.22)
7.5(25) 20(0.22)
7.5(25) 20(0.22)
h2
Unit : m(ft)
Max.Combination
of Indoor unit
(Btu/h class)
24k
33k
48k
h1