Daikin VRV III RXYQ-PY1K, Руководство по установке, Страница: 18 / 34

Installation manual
15
RXYQ8~1 RXYQ8~12P7YLK
VRVIII System air conditioner
4PW41760-1
8.8. Field line connection: power wiring
The power cord must be clamped to the plastic bracket using field
supplied clamp material.
The green and yellow striped wrapped wires must be used for
grounding.
(See figure 22)
8.9. Wiring example for wiring inside unit
See figure 27 .
1 Power supply (380~415 V, 3 N~50 Hz) or (380 V, 3 N~60 Hz)
2 Fuse
3 Earth leakage breaker
4 Grounding wire
5 Power supply terminal block
6 Connect each power wire
RED to L1, WHT to L2, BLK to L3 and BLU to N
7 Ground wire (GRN/YLW)
8 Clamp the power wire to the plastic bracket using a field supplied
clamp to prevent external force being applied to the terminal.
9 Clamp (field supply)
10 Cup washer
11 When connecting the earth wire, it is recommended to perform
curling.
■
When routing ground wires, secure clearance of
50 mm or more away from compressor lead wires.
Failure to observe this instruction properly may
adversely effect correct operation of other units
connected to the same ground.
■
When connecting the power supply cord, the earth
connection must be made before the current-carrying
connections are established. When disconnecting the
power supply cord, the current-carrying connections
must be separated before the earth connection is.
Length of the conductors between the power supply
cord anchorage and the terminal block itself must be
such that the current-carrying conductors are
tautened before the earthing conductor is in case the
power supply cord is pulled loose from the cord
anchorage.
Precautions when laying power wiring
■
Do not connect wiring of different thicknesses to the
power terminal block. (Slack in the power wiring may
cause abnormal heat.)
■
When connecting wiring which is the same thickness,
do as shown in the figure below.
■
For wiring, use the designated power wire and
connect firmly, then secure to prevent outside
pressure being exerted on the terminal board.
■
Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
strip the head and make proper tightening impossible.
■
Over-tightening the terminal screws may break them.
■
See the table below for tightening torque for the
terminal screws.
Recommendations when connecting the ground
When pulling the ground wire out, wire it so that it comes
through the cut out section of the cup washer. (An
improper ground connection may prevent a good ground
from being achieved.)
(See figure 22)
1 Electric wiring
2 Wiring between units
3 Clamp to the electric box with field supplied clamps.
4 When routing out the power/ground wires from the right side:
5 When routing the remote control cord and inter-unit wiring, secure
clearance of 50 mm or more from the power wiring. Ensure that
the power wiring does not contact any heated sections (
).
6 Clamp to the back of the column support with field supplied
clamps.
7 When routing out the inter-unit wirings from the opening for piping:
8 When routing out the power/ground wires from the front:
9 When routing out the ground wires from the left side:
10 Grounding wire
11 When wiring, pay attention not to detach the acoustic insulators
from the compressor.
12 Power supply
13 Fuse
14 Earth leakage breaker
15 Ground wire
16 Unit A
17 Unit B
18 Unit C
Tightening torque (N•m)
M8 (Power terminal block)
5.5~7.3
M8 (Ground)
M3 (Inter-unit wiring terminal block) 0.8~0.97