
MULTI V
Modular Heat Pump
6. Refrigerant Piping System
12
Installation Guide
̰
Limits of pipe length and difference in height
Note
• * : Assume equivalent piping length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.
WARNING
•
When the below condition is satisfied, the diameter of main pipe (B : Compressor Module
˩
1 st Branch)
must be increased according to below table.
–
The equivalent length between Heat Exchanger Module and the farthest indoor unit is 90m or more
(Liquid / Gas pipes are increased in accordance with below tables)
̰
Refrigerant pipe diameter from outdoor unit to first branch. (B)
• If available on site, select pipe size according to upper table. Otherwise it doesn't need to be increased.
• Model line up could be different in accordance with target region.
̰
Refrigerant pipe diameter from branch to branch (C,D,E)
• Refer to the “Specifications” of each models for maximum connectable capacity of indoor units.
Connection method
Mark
Y branch only
Combination of
Y branch / header
Header only
Max. pipe
length
Longest pipe length
: Heat Exchanger Module
˩
Compressor Module
L1
A
˺
30 m
A
˺
30 m
A
˺
30 m
Longest pipe length
: Compressor Module
˩
Indoor Unit
L2
B+C+D+E+e
˺
70 m
B+C+b
˺
70 m
B+D+e
˺
70 m
B+f
˺
70 m
Longest pipe equivalent length*
: Compressor Module
˩
Indoor Unit
L2 *
90 m
90 m
90 m
Longest pipe length after 1st branch
˜
40 m
40 m
40 m
Total pipe length
-
A+B+C+D+E+e
˺
140 m
A+B+C+D+a+b+c+d+e
˺
140 m
A+B+a+b+c+d+e+f
˺
140 m
Max.
difference
in height
Difference in height
: Compressor Module
˩
HEX Module
H1
10 m
10 m
10 m
Difference in height
: Compressor Module
˩
Indoor Unit
H2
30 m
30 m
30 m
Difference in height
: Indoor Unit
˩
Indoor Unit
h
15 m
15 m
15 m
Upward Outdoor
unit total capacity
Standard Pipe Diameter
Increased Pipe Diameter
When equivalent pipe length is 90m or more
from Heat Exchanger Module to farthest IDU
HP
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
5
Ø 9.52(3/8)
Ø 15.88(5/8)
Ø 12.7(1/2)
Ø 19.05(3/4)
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)
˺
18.2 (62,100)
Ø9.52(3/8)
Ø19.05(3/4)
Содержание ARUN050GME0
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