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Line Branch System - Hitachi RAS-(3-6)HVNC1(E) Service Manual

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3 Piping work and
refrigerant charge
Line branch system
Pipe Size (D)
Outdoor Unit
HP
Gas
3 / 4 / 5 / 6
Ø15.88
8
Ø25.40
10 /12
Ø25.40
(1) In case that total pipe length from the outdoor to the farthest indoor unit exceeds of 70m in 8 HP unit, please use a Ø12.7 pipe as
a liquid pipe.
Indoor Unit capacity
≤ 1.5 HP
1.8 / 2.0 HP
> 2.3 HP
N O T E
Connections including Indoor Units 8 and 10 HP are not possible.
79
SMGB0087 rev.0 - 12/2013
A
D
Multi-kit model A
(mm)
IVX Premium
Series
Liquid
Ø9.52
E-102SN(2/3)
Ø9.52(1)
E-162SN(2/3)
Ø12.70
E-162SN(2/3)
(mm)
Pipe Size (C)
Gas
Liquid
Ø12.70
Ø6.35
Ø15.88
Ø6.35
Ø15.88
Ø9.52
B
C
IVX Standard
IVX Premium
Series
Series
E-102SN(2/3)
E-102SN(2/3)
E-162SN(2/3)
E-102SN(2/3)
E-162SN(2/3)
E-102SN(2/3)
Multi-kit model B
IVX Standard
Series
E-102SN(2/3)
E-102SN(2/3)
E-102SN(2/3)
3

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