To Connect The Electrical Wiring - Daikin VRV 5 BS4A14AJV1B Installation And Operation Manual

15 Electrical installation
15.2

To connect the electrical wiring

NOTICE
▪ Follow the wiring diagram (delivered with the unit,
located at the inside of the service cover).
▪ For instructions on how to connect the optional
equipment, see the installation manual delivered with
the optional equipment.
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
1 Remove the service cover. See
2 Strip insulation from the wires.
a b
a Strip wire end to this point
b An excessive strip length may cause electrical shock or
leakage
Allowed
Not allowed
3 Connect the transmission wiring as follows:
▪ Connect the terminals F1/F2 (TO IN/D) on the control PCB
in the outdoor unit's switch box to the terminals F1/F2
(Outdoor unit) on terminal block X2M of the first BS unit.
See also the installation manual delivered with the outdoor
unit.
▪ In case of multiple BS units in the system that are connected
to the same transmission wiring branch line, connect the
terminals F1/F2 (BS unit) on terminal block X2M of the first
BS unit to the terminals F1/F2 (Outdoor unit) on terminal
block X2M on the second BS unit. Repeat the same
procedure for further BS units, where each time the
terminals F1/F2 (BS unit) on terminal block X2M on the n
BS unit are connected to the terminals F1/F2 (Outdoor unit)
on terminal block X2M on the (n+1)
▪ Connect the terminals F1/F2 (Indoor unit X) on terminal
blocks X3M~X5M to the corresponding indoor units:
In case of...
one indoor unit where branch
pipes are NOT joined
multiple indoor units
connected to the same branch
joined branch pipes
Installation and operation manual
32
unit" [ 4 22].
"13.3.2 To open the
th
BS unit.
connect...
the terminals F1/F2 (Indoor unit X)
on the BS unit to the F1/F2
terminals on the corresponding
indoor unit
the terminals F1/F2 (Indoor unit X)
on the BS unit to the F1/F2
terminals on the first indoor unit.
Connect the F1/F2 terminals on the
first indoor unit to the F1/F2
terminals on the second indoor unit,
and so on.
one of the two terminals F1/F2
(Indoor unit X) of the branches
that are joined on the BS unit to the
F1/F2 terminals on the
corresponding indoor unit.
Example
a d
INDOOR INDOOR INDOOR INDOOR
UNIT UNIT UNIT UNIT
A B C D
F1 F2 F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
A1 B1
b
INDOOR
UNIT
A
F1 F2 F1 F2 F1 F2 F1 F2
A2
F1 F2
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 one of the two F1/F2 terminals
inside BS unit 1
The DIP switches of each control PCB in the BS unit switch box
have to be set accordingly to the transmission wiring. See
switches" [ 4 33].
set the DIP
th
4 Connect the power supply as follows. The earth wire needs to
be attached to the cup washer:
1~ 50 Hz
220-240 V
a
b
c
X1M
a Earth leakage circuit breaker
b Fuse
c Power supply cable
5 Fix the cables (power supply and transmission cables) with a
tie-wrap to the foreseen fixation points. Route the wiring
according to the illustration below.
BS4~12A BS10~12A
X1M
c
c
a
a Power supply cable (field supply)
b Transmission cable (field supply)
c Tie-wrap (accessory)
c
OUT-
BS TO
DOOR
UNIT IN/D
UNIT
F1 F2 F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
B2 C
INDOOR INDOOR INDOOR OUT-
BS
UNIT UNIT UNIT DOOR
UNIT
B C D UNIT
F1 F2 F1 F2
BS6~12A BS4~12A
X2M
BS6-8A : X3M
X3M BS10-12A : X4M
c b c c b c b
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 – 2022.02
TO
OUT/D
"15.4 To
BS4A : X3M
BS6-8A : X4M
BS10-12A : X5M
c
b
c c