Operating Instructions and Installation
11-5Samsung Electronics
11-1-2 Installation
■ Specification of the refrigerant pipe
Maximum allowable
length of pipe (m)
Maximum allowable
difference of height(m)
Pipe size [mm]
Liquid pipe Gas pipe
100 30(25)
ø9.52
ø19.05(6HP)
ø15.88(4~5HP)
■ Selecting the refrigerant pipe and the allowable length of the pipe
The refrigerant pipe should be short as much as possible and minimize the maximum allowable difference of height.
●
When installing 6 indoor units using only the Y-joint
✳ A, B, C, D, E : Y-joint (When selecting the Y-joint B : Total capacity of the indoor unit 2, 3, 4, 5, 6)
Section Outdoor Unit
●
Size and thickness of refrigerant pipe
Temper grade of piping material
C1220T-O (Soft)
C1220T-1/2H (Semi-hard)
Minimal thickness (mm) Pipe size [mm/(inch)]
0.8
0.8
0.8
1.0
1.0
ø6.35(1/4)
ø9.52(3/8)
ø12.70(1/2)
ø15.88(5/8)
ø19.05(3/4)
Note : • The value in brackets indicates the length when the outdoor unit is lower than the indoor unit.
Outdoor unit
The distance between
the outdoor unit
and the furthest indoor unit
Difference of height between
the outdoor and indoor unit (m)=H1
30(25)
Difference of height between
the indoor units (m)=H2
Maximum
allowable
length of pipe
Maximum
allowable height
Maximum allowable length after the first Y-joint
15
First Y-joint ~Indoor unit : less than 30m
For example) b + c + d + e + f ≤ 30m
The distance of the shortest and longest
indoor pipe from the Y-joint : less than 20m
Actual length (m)
100
For example) a + b + c + d + e + f ≤ 100m
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