Size of pipes (ø mm)
For heat pump systems (2 pipes)
H5
L3
L2
H2
L1
L3
L3
L3
H1
ABC
D
AB
C
H
H
H
H
HH
G
H5
I
J
J
L5
L5
A
Main outdoor unit
B
Secondary outdoor units
C
D
E
Connection kit 1
F
Connection kit 2
G
Connection kit 3
H
Indoor units
I
Header branch
J
Multi-kit after rst branch
For heat recovery systems (3 pipes)
CH CH
L3
CH
L4
e
fgh
e
H4
f
L3
CH
CH
CH CH
L2
H2
H1
L4
g
H5
H3
hi
L3
L3
L1
L3
La
Lb Lc
La Lb Lc
Ld
ABC
D
AB
C
CH
L3
L3
G
5
5
5
6
6
6
6
6
6
6
6
6
66
5
3
6
6
6
H
H
H
H
H
H
H
H
H
H
H
HHH
II
J
J
J
J
J
J
A
Main outdoor unit
B
Secondary outdoor units
C
D
E
Connection kit 1
F
Connection kit 2
G
Connection kit 3
H
Indoor units
I
Header branch
J
Multi-kit after rst branch
3 pipes (high and low
pressure gas, liquid)
2 pipes (gas, liquid)
2 pipes (low pressure gas, liquid)
44
PMML0294A rev.2 - 07/2014
Piping work and refrigerant charge
PMML0294A_rev.2_02-2014.indb 44 14/07/2014 12:28:29