
MULTI V Water IV
Heat Pump
8. Refrigerant Piping System
22
Installation of Outside Units
Refrigerant pipe diameter from branch to branch (B,C,D)
Total pipe length limited
WARNING
• It is recommended that difference of piping length for pipes connected to the Indoor Unit is minimized.
Performance difference 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 outside unit and the farthest indoor unit is 90m or more (Liquid and Gas pipes
are increased)
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)
< 33.6(114,700)
Ø9.52(3/8)
Ø22.2(7/8)
< 50.4(172,000)
Ø12.7(1/2)
Ø28.58(1-1/8)
< 67.2(229,300)
Ø15.88(5/8)
Ø28.58(1-1/8)
< 72.8(248,400)
Ø15.88(5/8)
Ø34.9(1-3/8)
< 100.8(344,000)
Ø19.05(3/4)
Ø34.9(1-3/8)
< 173.6(592,500)
Ø19.05(3/4)
Ø41.3(1-5/8)
< 184.8(630,700)
Ø22.2(7/8)
Ø44.5(1-3/4)
˺
291.2(993,600)
Ø22.2(7/8)
Ø53.98(2-1/8)
Classification
Section
Type
Y branch
Y/header branch
Header branch
Maximum
permitted
length
Outside Unit
˩
indoor unit
Maximum pipe
length(L)
A+B+C+D+e
˺
150 m
(Conditionally 200 m)*
A+B+b
˺
150 m
A+C+e
˺
150 m
(Conditionally 200m)*
A+f
˺
150 m
Corresponding pipe
length
175 m
(Conditionally 225 m)*
175 m
(Conditionally 225 m)*
175 m
Total pipe length
(Outside Unit
˩
total
indoor unit)
300 m
(Conditionally 500 m)*
300 m
(Conditionally 500 m)*
300 m
(Conditionally 500 m)*
Permitted
height
Outside Unit
˩
indoor unit
height difference(H)
50 m
50 m
50 m
Indoor unit
˩
indoor unit
height difference(h)
40 m
40 m
40 m
Maximum pipe
length after 1st
branch
Actual pipe
length(
˜
)
40 m
(Conditionally 90m)*
40 m
(Conditionally 90m)*
40 m
Содержание MULTI V WATER IV ARWN080LAS4
Страница 1: ...Heat Pump 380 415V 380V R410A 50Hz 60Hz 0CVW0 01N Replaces 0CVT0 01M P No MFL61741615 ...
Страница 27: ...17 MULTI V Water IV Heat Pump Outside Units 4 Wiring Diagrams ARWN080LAS4 ARWN100LAS4 ARWN140LAS4 ...
Страница 28: ...MULTI V Water IV Heat Pump 4 Wiring Diagrams 18 Outside Units ARWN200LAS4 ...
Страница 392: ...Special Guide MULTI V Water IV Heat Pump 1 Cautions for Refrigerant Leaks ...