Daikin VRV 5 BS4A14AJV1B Manual page 82

16 | Electrical installation
16.1.3 Guidelines when connecting the electrical wiring
Installer and user reference guide
82
Component
Recommended field fuse
Residual current device
(a)
MCA=Minimum circuit ampacity. Stated values are maximum values.
Transmission wiring
The transmission wiring outside the unit should be wrapped and routed together
with the field piping. See
information.
Transmission wiring specification and limits
Vinyl cords with 0.75 to 1.25 mm² sheath or cables (2‑core wires)
Maximum wiring length between BS unit and indoor units
Maximum wiring length between BS unit and outdoor unit
Maximum wiring length between BS units
Total wiring length
(a)
If the total transmission wiring exceeds these limits, communication errors might occur.
Up to 16 branches are possible for unit-unit cabling. No secondary branchings are
allowed after any transmission wire branching.
a a
B
A
a Outdoor unit
b Indoor unit + BS unit
c Main line
d Branch line 1
e Branch line 2
f Branch line 3
g No branch is allowed after branch
h Central user interface (etc. ...)
A Outdoor/indoor transmission wiring
B Master/slave transmission wiring
Keep the following in mind:
BS4A BS6A
Must comply with applicable legislation.
"16.3 To finish the electrical
h
d
b
e
b
g
b
f
b
g
b
c
b
Unit
BS8A BS10A BS12A
6 A
4
wiring" [ 86] for more
(a)
1000 m
1000 m
1000 m
2000 m
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02