16
|
Electrical installation
Installer and user reference guide
85
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
Example
INDOOR
UNIT
A
a
c
b
B1
d
INDOOR
UNIT
B
INDOOR
UNIT
C
INDOOR
UNIT
D
OUT-
DOOR
UNIT
BS
UNIT
F1 F2 F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
TO
IN/D
TO
OUT/D
F1 F2 F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
INDOOR
UNIT
A
INDOOR
UNIT
B
INDOOR
UNIT
C
INDOOR
UNIT
D
OUT-
DOOR
UNIT
BS
UNIT
F1 F2 F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
A1
B2
C
A2
a
BS unit 1
b
BS unit 2
c
Outdoor unit
d
When joining branch pipes C and D
A1/A2
Indoor unit A connected to the branch pipe A of BS
unit 1 and BS
unit 2 respectively
B1/B2
Indoor units B1 and B2 connected to the same branch pipe B of BS unit 1
C
Indoor unit C connected to joint branch pipes C and D of BS
unit 1. The F1/F2
terminals of the indoor unit only have to be connected to 1 of the 2 F1/F2 terminals
inside BS
unit 1.
Note:
The DIP switches of each control PCB in the BS
unit switch box have to be set
accordingly to the transmission wiring. See
"16.4 To set the DIP switches"
87].
4
Connect the power supply as follows. The earth wire needs to be attached to
the cup washer:
1~ 50 Hz
220-240 V
X1M
a
b
c
a
Earth leakage circuit breaker
b
Fuse
c
Power supply cable
5
Attach the cables (power supply and transmission cables) with a tie-wrap to
the foreseen fixation points. Route the wiring according to the illustration
below.
c
c
c
a
b
c
c
c
b
b
b
c
c
c
BS4~12A
X1M
X3M
BS6-8A : X3M
BS10-12A : X4M
BS4A : X3M
BS6-8A : X4M
BS10-12A : X5M
X2M
BS10~12A
BS6~12A
BS4~12A
a
Power supply cable (field supply)
