18
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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"
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
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:
Содержание VRV IV RKXYQ5T8Y1B Series
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