Daikin VRV IV - 18.1.6 Piping Length: VRV DX Only

18 | Piping installation
Installer and user reference guide
74
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
Equivalent length of the piping accessories
Accessory Equivalent length
Refnet joint 0.5m
Refnet header 1m
18.1.6 Piping length: VRV DX only
For system only containing VRVDX indoor units:
System setup
Example Description
Example 1.1
a
A
h i j k l m n
B C D E F G
pb c d e f
1 2 3 4 5 6 7
8
g
H1
H2
Single outdoor
Branch with refnet joint
Example 1.2
a
b
c d e f
i
k
j
g h
A B
1 2 3 4 5 6
7 8
H1
H2
Single outdoor
Branch with refnet joint
and refnet header
Example 1.3
a
c
b d e f
i
g h
1 2 3 4 5 6 7
8
H1
H2
Single outdoor
Branch with refnet header
Example 2.1
a
A
h i j k l m n
B C D E F G
p
b c d e f
1 2 3 4 5 6 7
8
g
t
u
r
s
H1
H2
Multi outdoor
Branch with refnet joint
Example 2.2
a
j k
b
1 2 3 4 5 6
7 8
c d e f g h
t
u
r
s
BA
H1
H3
H2
Multi outdoor
Branch with refnet joint
and refnet header