LG ARUN048GSS4.EWGBLUS Uživatelský manuál stáhnout pdf (Strana 13)

ENGLISH

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

that of header to be 1m(3.3ft), calculation purpose

• Indoor Unit should be installed at lower position than the header.

WARNING

Pipe length after header branching (a~f)

It is recommended that difference in length of the pipes con-

nected to the Indoor Units is minimized. Performance difference

between Indoor Units may occur.

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

Longest pipe length Equivalent pipe length(*)

A+f ≤ 150m(492ft) A+f ≤ 175m(574ft)

Longest pipe length after 1st branch

f ≤ 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)

Header Method

Example : 6 Indoor Units

connected

Ⓐ : Outdoor Unit

Ⓑ : 1st branch

Ⓓ : Sealed piping

L150 (492)

H50 (164)

40 (131)

h15(49)

[Unit:m(ft)]

Combination of Y

branch/header Method

Example : 5 Indoor Units

connected

Ⓐ : Outdoor Unit

Ⓑ : 1st branch (Y branch)

Ⓓ : Indoor Unit

Ⓔ : Header

Ⓕ : Sealed piping

L150 (492)

40 (131)

[Unit:m(ft)]

h15(49)

H50 (164)

Branch pipe can not be used after header

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

Longest pipe length Equivalent pipe length(*)

A+B+b ≤ 150m(492ft) A+B+b ≤ 175m(574ft)

Longest pipe length after 1st branch

B+b ≤ 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

• Indoor Unit should be installed at lower position than the header.

WARNING

• It is recommended that difference of piping length for pipes

connected to the Indoor Unit is minimized. Performance differ-

ence between Indoor Units may occur.

• 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

indoor unit is 90m or more (Liquid and Gas pipes are in-

creased)

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

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)

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)

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.

Ex) In case indoor unit combination ratio 120% is connected to

24HP(67.2 kW) outdoor unit.

1) Outdoor unit main pipe diameter A : Ø34.9(Gas pipe),

Ø15.88(liquid pipe)

2) Pipe diameter B after first branch according to 120% indoor

unit ombination(80.6kW) : Ø34.9(gas pipe), Ø19.05(liquid

pipe)

Therefore, pipe diameter B connected after first branch

would be Ø34.9(gas pipe) / Ø15.88(liquid pipe) which is

same with main pipe diameter.

[Example]

Do not choose the main pipe diameter by downward indoor unit

total capacity but its outdoor unit model name.

Do not let the connection pipe from branch to branch exceed the

main pipe diameter chosen by outdoor unit model name.

EX) Where connecting the indoor units to the 22 HP (61.6 kW)

outdoor unit to 130% of its system capacity (80.1 kW) and

branching 7k (2.2kW) indoor unit at the 1st branch.

1) Main pipe diameter(22 HP outdoor unit): Ø28.58(gas pipe),

Ø15.88(Liquid pipe)

2) Pipe diameter between 1st and 2nd branch (77.9kW indoor

units) :

Ø34.9(Gas pipe), Ø19.05(Liquid pipe) in conformity with

downward indoor units.

Since the main pipe diameter of 22HP outdoor unit is

Ø28.58(gas pipe), Ø15.88(Liquid pipe) is used as the main

pipe and the connection pipe between 1st and 2nd branch.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 28 29

Komentáře k této Příručce

Žádné komentáře

LG ARUN048GSS4.EWGBLUS Uživatelský manuál Strana 13

Komentáře k této Příručce

Související produkty a manuály pro Split-systém klimatizace LG ARUN048GSS4.EWGBLUS