Daikin VRV IV Series - To connect the electrical wiring on the compressor unit

17 | Electrical installation
Installer and user reference guide
93
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Model Minimum circuit
ampacity
Recommended fuses
RKXYQ5 13.5A 16A
RKXYQ8 17.4A 20A
▪ Phase and frequency: 3N~50Hz
▪ Voltage: 380-415V
Transmission wiring
Transmission line section:
Transmission wiring Sheathed + shielded cable (2 wires)
Vinyl cords
0.75~1.25mm²
(using shielded cable for the
transmission wiring is mandatory for
5HP, and optional for 8HP)
Maximum wiring length
(= distance between compressor unit
and furthest indoor unit)
300m
Total wiring length
(= distance between compressor unit
and all indoor units, and between
compressor unit and heat exchanger
unit)
600m
If the total transmission wiring exceeds these limits, it may result in communication
error.
17.2 To connect the electrical wiring on the compressor unit
NOTICE
▪ Follow the wiring diagram (delivered with the unit, located on the switch box
cover).
▪ Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
1 Remove the service covers of the compressor unit and the switch box. See
"15.2.2To open the compressor unit"[463].
2 Connect the transmission wiring as follows: