Hitachi FSXN1E Series Installation And Operation Manual page 58

Piping work and refrigerant charge

Size of pipes (ø mm)
For heat pump systems (2 pipes)
H
J
L3
For heat recovery systems (3 pipes)
J
H4
J
5
L3
J
3
L3
L4
44
PMML0294A_rev.2_02-2014.indb 44
C
A B
L5
A B C
G
I
L3
H
H
L1
J
L2
L3
L3
H H H
A B
La Lb
A B C
La
Lb
G
J
CH CH L3 CH
L3
L3
6 6 6 L4
H H
H
5
5
e f
CH
L2
J
J
g h 6 i
L3
6
6
H H
H3
H
L3
6
6
H H
I
e
CH
5
CH CH CH
6
6 6
H H H
PMML0294A rev.2 - 07/2014
H5
D H5
L5
H1
H2
C
Lc
D H5
Lc Ld
H1
H2
L1
I
f g h 6
6
6
H H H
A Main outdoor unit
B
C Secondary outdoor units
D
E
Connection kit 1
F Connection kit 2
G Connection kit 3
H Indoor units
I Header branch
J Multi-kit after first branch
A Main outdoor unit
B
C Secondary outdoor units
D
E Connection kit 1
F Connection kit 2
G Connection kit 3
H
Indoor units
I Header branch
J Multi-kit after first branch
3 pipes (high and low
pressure gas, liquid)
2 pipes (gas, liquid)
2 pipes (low pressure gas, liquid)
14/07/2014 12:28:29