LG ARUN048GSS4.EWGBLUS Manual de usuario descargar pdf (Pagina 12)

ENGLISH

Total pipe length = A+B+C+D+a+b+c+d+e ≤ 300m(984ft)

Longest pipe length Equivalent pipe length(*)

A+B+C+D+e ≤ 150m(492ft) A+B+C+D+e ≤ 175m(574ft)

Longest pipe length after 1st branch

B+C+D+e ≤ 40m(131ft)

Difference in height (Outdoor Unit ÷ Indoor Unit)

H ≤ 50m(164ft)(40m(131ft) : Outdoor Unit is lower than Indoor Units)

Difference in height (Indoor Unit ÷ Indoor Unit)

h ≤ 15m(49ft)

• * : Assume equivalent pipe length of Y branch to be 0.5m(1.6ft),

that of header to be 1m(3,3ft), calculation purpose

Refrigerant pipe diameter from branch to branch (B,C,D)

Downward Indoor

Unit total capacity

[kW(Btu/h)]

Liquid pipe [mm(inch)] Gas pipe [mm(inch)]

≤ 5.6(19,100)

Ø6.35(1/4) Ø12.7(1/2)

< 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8)

≤ 22.4(76,400)

Ø9.52(3/8) Ø19.05(3/4)

< 36.4(124,200) Ø9.52(3/8) Ø22.2(7/8)

WARNING

When the any one (or both ) of below conditions are satisfied, the

diameter of main pipe (A) must be increased according to below

table.

- The equivalent length between outdoor unit and the farthest in-

door unit is 90m or more

(Liquid and Gas pipes are increased)

- The level difference (Outdoor unit ÷ Indoor unit) is 50m or more

(Only liquid pipe is increased)

Refrigerant pipe diameter from outdoor unit to first branch. (A)

Outdoor unit

total capacity (HP)

Liquid pipe [mm(inch)] Gas pipe [mm(inch)]

4 Ø9.52(3/8) Ø15.88(5/8)

5 Ø9.52(3/8) Ø15.88(5/8)

6 Ø9.52(3/8) Ø19.05(3/4)

Piping parts

Name

① Main pipe

② Branching pipe

③ Indoor unit connecting pipe

Selection

pipe size

Outdoor unit

capacity[HP]

Liquid pipe

[mm(inch)]

Gas pipe

[mm(inch)]

Ø9.52(3/8) Ø15.88(5/8)

Ø9.52(3/8) Ø19.05(3/4)

① Size of main pipe

② Pipe size of between branching sections

③ Connecting pipe size of indoor unit

Indoor unit capacity

[kW(Btu/h)]

Liquid pipe

[mm(inch)]

Gas pipe

[mm(inch)]

≤ 5.6(19,100)

Ø6.35(1/4) Ø12.7(1/2)

< 16.0(54,600)

Ø9.52(3/8) Ø15.88(5/8)

< 22.4(76,400) Ø9.52(3/8) Ø19.05(3/4)

< 36.4(124,200) Ø9.52(3/8) Ø22.2(7/8)

Indoor unit capacity

[kW(Btu/h)]

Liquid pipe

[mm(inch)]

Gas pipe

[mm(inch)]

≤ 5.6(19,100)

Ø6.35(1/4) Ø12.7(1/2)

< 16.0(54,600)

Ø9.52(3/8) Ø15.88(5/8)

≤ 22.4(76,400)

Ø9.52(3/8) Ø19.05(3/4)

≤ 28.0(95,900)

Ø9.52(3/8) Ø22.2(7/8)

① Outdoor unit ’ 1st branching section

② Branching section

’ Branching section

③ Branching section

’ Indoor unit

Outdoor unit

Gas pipe

Main pipe

Liquid pipe

Branching

pipe

Branching

pipe

Indoor unit

Y branch method

Example : 5 Indoor Units

connected

Ⓐ : Outdoor Unit

Ⓑ : 1st branch (Y branch)

L150 (492)

H50 (164)

l 40 (131)

[Unit:m(ft)]

h15(49)

Refrigerant piping systemSelection of Refrigerant Piping

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 28 29

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LG ARUN048GSS4.EWGBLUS Manual de usuario Pagina 12

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