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Refrigerant piping & refrigerant charge
Example for line branch
OU
IU
IVX Premium
quantity
IVX Standard
allowed
Maximum refrigerant piping length (Line branch system)
IVX Premium series
Maximum piping length between
the outdoor unit and the farthest
indoor unit
Maximum piping length from first branch to each indoor unit (L2)
Maximum piping length from branch to indoor unit (L3)
Maximum piping length L4 + (L3
(Outdoor Unit is Higher / Lower.)
Maximum height Difference Indoor / Indoor
IVX Standard series
Maximum piping length
between the outdoor unit
and the farthest indoor
unit
Maximum piping length from first branch to each indoor unit (L2)
Maximum piping length from branch to indoor unit (L3)
Maximum piping length L4 + (L3
Maximum height Difference Indoor / Indoor
28
3 HP
4 HP
2 -3
2 - 5
--
Outdoor Unit
Actual Length (L1)
Equivalent Length (EL)
+L3
+L3
....)
1
2
3
Maximum height difference
Outdoor / Indoor (H)
Maximum height difference:
Branch pipe/Indoor
Branch pipe/branch pipe
Outdoor Unit
Actual Length (L1)
Equivalent Length (EL)
+L3
+L3
....)
1
2
3
Maximum height difference
Outdoor / Indoor (H)
(Outdoor Unit is Higher / Lower.)
Maximum height difference:
Branch pipe/Indoor
Branch pipe/branch pipe
PMML0251A rev.2 - 02/2013
5 HP
6 HP
2 - 6
2 - 4
3HP
4HP
50
70
20
60
4HP
5HP
70
90
20
10
70
8 HP
10 HP
2 - 8
(picture is as example)
5HP
6HP
8HP
75
100
95
125
30
40
10
15
95
100
30 / 20
10
3
(m)
6HP
8HP
10HP
75
100
95
125
25
15
75
100
145
30 / 20
3
3
(m)
10HP
145
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