Daikin VRV IV RKXYQ5T8Y1B Series, Installer And User Reference Manual

Page: 103 / 156

18 | Electrical installation
Installer and user reference guide
103
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1A – 2020.10
b Power supply
c Cable tie
5 Reattach the service covers. See "18.5 To close the compressor unit" [ 4 105].
6 Connect an earth leakage circuit breaker and fuse to the power supply line.
18.3 To connect the electrical wiring on the heat exchanger 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 Remove the service cover. See "To open the switch box cover of the heat
exchanger unit" [ 4 67].
2 Connect the transmission wiring as follows:
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
b
X2M X2M
X2M X1M (A1P)
RKXYQ5 RDXYQ5
TO OUT/D TO IN/D
F1 F2 F1 F2
a1 a2 a2
a
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
b
a
RKXYQ8 RDXYQ8
TO OUT/D TO IN/D
F1 F2 F1 F2
8 HP 5 HP
a Sh shielded cable (2 wires) (no polarity)
a1, a2 Connection of shield to earth
b Terminal board (field supply)
NOTICE
Shielded cable. Using shielded cable for the transmission wiring is mandatory for
5 HP, and optional for 8 HP.
X2M
F1F2
F1F2
a1
X1M
X1M (A1P)
5 HP 8 HP
X2M
a2
F1
F2
X2M
a2
F1
F2
RKXYQ5 RDXYQ5 RKXYQ8 RDXYQ8
a1, a2 Earth (use the screw delivered as accessory)
When using shielded cable:
▪
In case of 5 HP ( a1 and a2 ): Connect the shield to the earth of the compressor
unit and the heat exchanger unit.
▪
In case of 8 HP (only a2 ): Connect the shield only to the earth of the heat
exchanger unit.
3 Connect the power supply as follows: