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Electrical installation
Installer and user reference guide
94
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
Model
Minimum circuit
ampacity
Recommended
fuses
Power supply
RXYSQ4_V
29.1 A
32 A
1~ 50 Hz
220-240 V
RXYSQ5_V
RXYSQ6_V
RXYSQ4_Y
14.1 A
16 A
3N~ 50 Hz
380-415 V
RXYSQ5_Y
RXYSQ6_Y
Transmission wiring
Transmission wiring specification and limits
(a)
Vinyl cords with 0.75 to 1.25 mm² sheath or cables (2‑core wires)
Maximum number of branches for unit-to-unit cabling
9
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.
19.2 To connect the electrical wiring to the outdoor unit
NOTICE
▪
Follow the wiring diagram (delivered with the unit, located at the inside of the
service cover).
▪
Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
1
2
Strip insulation (20 mm) from the wires.
a
b
a
Strip wire end to this point
b
An excessive strip length may cause electrical shock or leakage
3
Connect the transmission wiring as follows: