15
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Piping installation
Installer and user reference guide
73
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
15 Piping installation
CAUTION
See
"3 Specific installer safety instructions"
10] to make sure this installation
complies with all safety regulations.
In this chapter
15.1 Installation limitations
The illustration and table below show the installation limitations.
g
a
f
e
b
c
g
g
d
g
g
g
gg
g
a, b
See table below
c
Maximum limit of 16 downstream ports of BS units in refrigerant flow-through.
Unused ports must also be counted. E.g. 16 ports=BS12A+BS4A or BS8A+BS4A
+BS4A
d
At least 1 indoor unit must be connected to a BS unit
e
Combine 2 ports when indoor unit capacity is over 140
f
Cooling only indoor units cannot be installed. All indoor units must be connected to
the branch pipes of a BS unit
g
BS unit