LG ARUN038GS2 Installation Manual - Page 31

Refrigerant pipe diameter between branches and HR units B,C,D, Total pipe length A+B+C1+C2+C3+D+a+b+

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ENGLISH Refrigerant piping installation ➲ Refrigerant pipe diameter between branches and HR units (B,C,D) Downward indoor unit total capacity [kW(Btu/h)] ≤ 5.6 (19,100) < 16.0 (54,600) < 22.4 (76,400) < 33 (112,600) < 47 (160,400) < 71 (242,300) < 104 (354,900) 104 (354,900) ≤ Liquid pipe [mm(inch)] Ø6.35(1/4) Ø9.52(3/8) Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Ø19.05(3/4) Gas pipe [mm(inch)] Low pressure High pressure Ø12.7(1/2) Ø9.52(3/8) Ø15.88(5/8) Ø12.7(1/2) Ø19.05(3/4) Ø15.88(5/8) Ø22.2(7/8) Ø19.05(3/4) Ø28.58(1-1/8) Ø22.2(7/8) Ø28.58(1-1/8) Ø28.58(1-1/8) Ø34.9(1-3/8) Ø28.58(1-1/8) Ø41.3(1-5/8) Ø28.58(1 -1/8) ➲ Total pipe length (A+B+C1+C2+C3+D+a+b+c+d+e+f+g+i+j+k) ≤ 1,000m(3,280ft) E1 ~ D10 C3 ~ C4 B1 ~ D10 E1 ~ A3 H h g, I, j, k Outdoor unit ~ the farthest indoor unit Equivalent pipe length A+B+C3+D+K ≤ 150m(492ft)(200m(656ft))(*) A+B+C3+D+K ≤ 175m(574ft)(225m(738ft))(*) HR Unit ~ neighboring HR Unit D≤ 10m(33ft) First indoor branch ~ the farthest indoor unit B+C3+D+k ≤ 90m(295ft)(*) First outdoor branch ~ the farthest outdoor unit E+F3 ≤ 10m(33ft) Difference in height (outdoor unit ↔ indoor unit) H ≤ 100m(328ft) Difference in height (indoor ~ indoor unit) H ≤ 15m(49ft) Piping length from each indoor unit to the closest HR Unit a,b,c,d,e,f,g, i, j, k ≤ 40m(131ft) CAUTION • Assume equivalent pipe length of Y branch to be 0.5m(1.6ft), calculation purpose. CAUTION: • Should not be exceed 10m(33ft) between neighboring HR unit. • Serial connection of HR units : Capacity sum of indoor units ≤ 160kBtu/hr. Installation Manual 31

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ENGLISH
Installation Manual
31
Refrigerant piping installation
Refrigerant pipe diameter between branches and HR units (B,C,D)
Total pipe length (A+B+C1+C2+C3+D+a+b+c+d+e+f+g+i+j+k)
≤
1,000m(3,280ft)
Downward indoor unit total capacity
[kW(Btu/h)]
≤
5.6 (19,100)
Ø6.35(1/4)
Ø12.7(1/2)
Ø9.52(3/8)
< 16.0 (54,600)
Ø9.52(3/8)
Ø15.88(5/8)
Ø12.7(1/2)
< 22.4 (76,400)
Ø9.52(3/8)
Ø19.05(3/4)
Ø15.88(5/8)
< 33 (112,600)
Ø9.52(3/8)
Ø22.2(7/8)
Ø19.05(3/4)
< 47 (160,400)
Ø12.7(1/2)
Ø28.58(1-1/8)
Ø22.2(7/8)
< 71 (242,300)
Ø15.88(5/8)
Ø28.58(1-1/8)
Ø28.58(1-1/8)
< 104 (354,900)
Ø19.05(3/4)
Ø34.9(1-3/8)
Ø28.58(1-1/8)
104 (354,900)
≤
Ø19.05(3/4)
Ø41.3(1-5/8)
Ø28.58(1 -1/8)
Liquid pipe
[mm(inch)]
Low pressure
High pressure
Gas pipe [mm(inch)]
Outdoor unit ~ the farthest indoor unit
Equivalent pipe length
A+B+C3+D+K
≤
150m(492ft)(200m(656ft))(*)
A+B+C3+D+K
≤
175m(574ft)(225m(738ft))(*)
HR Unit ~ neighboring HR Unit
D
≤
10m(33ft)
First indoor branch ~ the farthest indoor
unit
B+C3+D+k
≤
90m(295ft)(*)
First outdoor branch ~ the farthest outdoor unit
E+F3
≤
10m(33ft)
Difference in height (outdoor unit
↔
indoor unit)
H
≤
100m(328ft)
Difference in height (indoor ~ indoor unit)
H
≤
15m(49ft)
Piping length from each indoor unit to the closest HR Unit
a,b,c,d,e,f,g, i, j, k
≤
40m(131ft)
E1
~
D10
C3
~
C4
B1
~
D10
E1
~
A3
H
h
g, I, j, k
CAUTION
• Assume equivalent pipe
length of Y branch to be
0.5m(1.6ft), calculation
purpose.
CAUTION:
• Should not be exceed
10m(33ft) between
neighboring HR unit.
• Serial connection of
HR units : Capacity
sum of indoor units
≤
160kBtu/hr.