Daikin VRV IV Q+ Series Installer And User Reference Manual page 117

RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
CAUTION
▪
When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
▪
When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
▪
The length of the conductors between the power supply stress relief and the
terminal block itself must be as such that the current-carrying wires are tautened
before the earth wire is in case the power supply is pulled loose from the stress
relief.
Tightening torque for the terminal screws:
Screw size
M8 (power terminal block)
M8 (ground)
NOTICE
When connecting the earth wire, align the wire with the cut out section of the cup
washer. Incomplete earthing may cause electrical shock.
The power supply MUST be clamped to the plastic bracket using field supplied
clamp material to prevent external force being applied to the terminal. The green
and yellow striped wire MUST be used for earthing only.
8~12 HP
a c b d
14~20 HP
c b d
a
a Power supply (380~415 V, 3N~ 50 Hz)
b Fuse
c Earth leakage protector
d Earth wire
e Power supply terminal block
f Connect each power wire: RED to L1, WHT to L2, BLK to L3 and BLU to N
g Earth wire (GRN/YLW)
h Tie wrap
i Cup washer
j When connecting the earth wire, it is recommended to perform curling.
Multiple outdoor units
To connect the power supply for multiple outdoor units to each other, ring tongues
have to be used. No bare cable can be used.
In that case, the ring washer that is installed by default should be removed.
Attach both cables to the power supply terminal as indicated below:
19 Electrical installation
|
Tightening torque (N•m)
5.5~7.3
e
f
g
i
j
h
e
f
g
i
j
h
Installer and user reference guide
117