Daikin VRV 5-S Series - Page 103

20 | Electrical installation
Installer and user reference guide
103
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
Transmission wiring specification and limits
(a)
Maximum wiring length
(distance between outdoor and furthest indoor unit)
300m
Total wiring length
(sum of distances between outdoor and all indoor units)
600m
(a)
If the total transmission wiring exceeds these limits, communication errors might occur.
No secondary branchings are allowed after any transmission wire branching.
A
B
C
b2
b3
c1
c2
b1
a
A Outdoor unit
B Indoor unit
C Central user interface (etc...)
a Main line
b1, b2, b3 Branch lines
c1, c2 No branch is allowed after branch
Example:
e
d
F1/F2
(16 V)
F1/F2
(16 V)
220-240 V
1~ 50 Hz
c
a
Y
V
b
220-240 V
1~ 50 Hz
380-415 V
3N~ 50 Hz
a Main switch
b Earth connection
c Power supply wiring (including earth) (EMC shielded cable)
F1/F2 Transmission wiring (EMC shielded cable)
V Outdoor unit (RXYSA4~6_V)
Y Outdoor unit (RXYSA4~6_Y)
d Indoor unit
e User interface