LG ARUV025GSD0 Engineering Product Data Book page 50

7. Refrigerant Piping System
7.2 Indoor Unit Connection
Ú 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 500mm or more from branch(or header).
Do not bend U type.
It may cause Performance unsatisfactory or noise.
7.3 The amount of Refrigerant
The calculation of the additional charge should take into account the length of pipe and CF(correction
Factor) value of indoor unit.
Additional charge(kg)
Note:
For CF value (additional refrigerant) table of indoor units, please refer to installation manual of outdoor unit.
Liquid pipe [mm(inch)]
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø9.52(3/8)
Total liquid pipe : Ø9.52 mm
=
Total liquid pipe : Ø6.35 mm
+
CF value of indoor unit (kg/EA)
+
Gas pipe [mm(inch)]
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
500mm or more 500mm or more
R410A(50/60Hz)
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