Hitachi RAS-10HNCE, Инструкция по установке и эксплуатации

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PMML0251A rev.2 - 02/2013
Refrigerant piping & refrigerant charge
27
ENGLISH
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Maximum refrigerant piping length
IVX Premium series
(m)
Outdoor Unit 3HP 4HP 5HP 6HP 8HP 10HP
Maximum piping Length be-
tween the outdoor unit and
the farthest indoor unit
Actual Length (L) 50 75 100
Equivalent Length (EL) 70 95 125
Total piping length
2 units (A+B+C) 60 85 100 115
3 units (A+B+C+D) -- 95 100 130
4 units
(A+B+C+D+E+F+G+)
-- 95 100 145
Maximum piping line
after first branch
2 and 3 units (B, C, D) 10 15
4 units
(B+D, B+E, C+F, C+G)
-- 10 15
Main piping length A A > B, C, D, E, F, G
Maximum height difference
Outdoor / Indoor (H)
(Outdoor Unit is Higher / Lower.)
30 / 20
Maximum height difference Indoor / Indoor 10
Maximum height difference:
branch pipe/Indoor (2, 3 and 4 units system)
branch pipe/branch pipe (4 units system)
3
(B-C) / (B-D) / (C-D) / (C+G)-(B+E) / (C+G)-(B+D)
(C+F)-(B+E) / (C+F)-(B+D)
< 8
IVX Standard series
(m)
Outdoor Unit 4HP 5HP 6HP 8HP 10HP
Maximum piping Length
between the outdoor unit
and the farthest indoor
unit
Actual Length (L) 70 75 100
Equivalent Length (EL) 90 95 125
Total piping length
2 units (A+B+C)
80 85 100 115
3 units (A+B+C+D) 90 95 100 130
4 units
(A+B+C+D+E+F+G+)
90 95 100 145
Maximum piping line
after first branch
2 and 3 units (B, C, D) 10 15
4 units
(B+D, B+E, C+F, C+G)
10 15
Main piping length A A > B, C, D, E, F, G
Maximum height difference
Outdoor / Indoor (H)
(Outdoor Unit is Higher / Lower.)
30 / 20
Maximum height difference Indoor / Indoor 3
Maximum height difference:
branch pipe/Indoor (2, 3 and 4 units system)
branch pipe/branch pipe (4 units system)
3
(B-C) / (B-D) / (C-D) / (C+G)-(B+E) / (C+G)-(B+D)
(C+F)-(B+E) / (C+F)-(B+D)
< 8
N O T E
The liquid piping and the gas piping must be of the same piping length and run along the same route.
Install the branch piping as much as possible near the indoor units
Install Multikits at the same horizontal level.
_PMML0251A_r2.indb 27 06/02/2013 9:05:04