10 About the box
Installation and operation manual
13
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 – 2022.02
For the installer
10
About the box
NOTICE
Before installation, check the packaging and parts for
damage. Make sure that the shipment is complete.
NOTICE
When you carry or manipulate the unit, never tilt it more
than 70 degrees in any direction.
70°max.
10.1
To remove the accessories
m
3/1x
n
4/2x
o
2x
p
2x
q
2x
r
2x
s
2x
t
2x
u
2x
v
2x
e
f
g
a
b
c
d
1x
1x
1x
1x
1x
1x
1x
h
3/1x
i
4/2x
j
2x
k
8/11x
l
1x
a
Installation and operation manual
b
General safety precautions
c
Drain hose
d
Metal clamp
e
Sealing material (large)
f
Sealing material (small)
g
Sealing material (thin sheet)
h
Insulation tube for stopper pipe Ø9.5 mm (3× for BS4A,
1× for BS6~12A)
i
Insulation tube for stopper pipe Ø15.9 mm (4× for BS4A,
2× for BS6~12A)
j
Insulation tube for stopper pipe Ø22.2 mm
k
Tie wraps (8× for BS4A, 11× for BS6~12A)
l
Duct closing plate
m
Stopper pipe Ø9.5 mm (3× for BS4A, 1× for BS6~12A)
n
Stopper pipe Ø15.9 mm (4× for BS4A, 2× for BS6~12A)
o
Stopper pipe Ø22.2 mm
p
Liquid header reducer pipe (Ø15.9 → 9.5 mm)
q
Liquid header reducer pipe (Ø15.9 → 12.7 mm)
r
Liquid header expander pipe (Ø15.9 → 19.1 mm)
s
Gas header reducer pipe (Ø22.2 → 12.7 mm)
t
Gas header reducer pipe (Ø22.2 → 15.9 mm)
u
Gas header reducer pipe (Ø22.2 → 19.1 mm)
v
Gas header expander pipe (Ø22.2 → 28.6 mm)
11
About the unit and options
11.1
About combining units and options
11.1.1
Possible options for the BS unit
INFORMATION
All possible options are mentioned in the option list below.
For more information about an option, see the installation
and operation manual of the option.
Duct connection kit (EKBSDCK)
This kit is required when you install ducting on the air inlet side. See
the examples in
"13.2 Possible configurations"
22] and
install the ducting (field supply)"
This kit can also be used when measuring airflow. See
Joint kit (EKBSJK)
This kit is required when you make a connection with e.g.
FXMA200A and FXMA250A. When using the joint kit, change the
DIP switch settings. See
"15.4 To set the DIP switches"
33].
Drain up kit (K-KDU303KVE)
▪ Do NOT route the transmission wiring of the BS unit together with
the power supply wire of the drain up kit.
▪ Route the power supply wire and relay harness of the drain up kit
inside the BS unit as shown in the figure below.
▪ Position the ferrite core on the relay harness of the drain up kit
inside the switch box of the BS unit.
c
c
c
a
e
d
b
c
c
c
b
b
b
c
c
c
BS4~12A
X1M
X15A
X3M
X3/4M
X3/4/5M
X2M
BS10~12A
BS6~12A
BS4~12A
f
g
a
Power supply for the BS unit
b
Transmission wiring
c
Cable tie
d
Power supply of the drain up kit
e
Relay harness of the drain up kit
f
Relay connector of the drain up kit
g
Ferrite core
11.2
Identification
NOTICE
When installing or servicing several units at the same time,
make sure NOT to switch the service panels between
different models.