LG ARUN040GSS5 Installation Manual page 37

Outdoor unit Connection
WARNING
!
• In case of pipe diameter B connected after first branch is bigger than the main pipe
diameter A, B should be of the same size with A.
Indoor Unit Connection
Indoor Unit connecting pipe from branch (a,b,c,d,e,f)
Indoor Unit capacity
[kW(Btu/h)]
≤ 5.6(19 100)
< 16.0(54 600)
≤ 22.4(76 400)
≤ 28.0(95 900)
CAUTION
!
• Bending radius should be at least twice
the diameter of the pipe.
• Bend pipe after 500 mm or more from
branch(or header).
Do not bend U type.
It may cause Performance unsatisfactory
or noise.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
Liquid pipe [mm(inch)]
Ø 6.35(1/4)
Ø 9.52(3/8)
Ø 9.52(3/8)
Ø 9.52(3/8)
Gas pipe [mm(inch)]
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 22.2(7/8)
500 mm or more
37
500 mm or more