Precautions To Power Wiring Connection; Precautions To Wiring Connection Between Units - Daikin RZQ200MY1 Installation Manual

[Precautions for routing power wiring]
• Never connect two electric wires of different sizes to one power
supply terminal.
(Phenomenons such as loose electric wire connection may
cause abnormal heating.)
• For the electric wires connected to the power supply terminal,
use the crimp-style terminal with insulation sleeve. Otherwise,
connect the wires of the same size to the sides respectively as
shown in the figure.
Sheathed with the
insulation sleeve
Crimp-style terminal
Connect the
wires of the
same size to Never connect
the sides two wires
respectively. together.
Phenomenons such as loose electric wire connection may
cause abnormal heating. Strictly follow the instructions below.
• Use the specified electric wires and secure them firmly without
applying external stress to the terminal block.
• Tighten the terminal screws with a suitable screwdriver.
Use of small screwdriver would damage the screw head and
could not achieve the proper tightening effect.
• Secure the terminal screws overtight may break them.
• Refer to the table below for the tightening torque of the terminal
screws.
Tightening torque (N • m)
M5 Power supply terminal
M4 Shield earthing
M3 Internal unit wiring terminal

6-3 Precautions to power wiring connection

WARNING
After the fuse is blown, ask the serving agency to replace it.
Do not replace the fuse by yourself. Otherwise, it may cause
accidents such as electric shock.
CAUTION
When using residual current operated circuit breakers, be sure
to use a high-speed type 100 mA rated residual.
Phase &
Model Voltage
frequency
RZQ180 ∙
3N~ 50Hz 380-415V
200MY1
Note
• Select the power wiring in accordance with the local and
national regulations in your area by referring to the above table.
• Specifications of the field power wiring should be in compliance
with IEC60245.
• Use wire type H05VV when the protective conduits are used for
the power wiring.
• Use wire type H07RNF when the protective conduits are not used.
• Only proceed with wiring work after turning off all the power.
• Always earth the unit in accordance with the local and national
regulations in your area.
Power wiring
Never connect
two wires of
different size.
2.39~2.91
1.18~1.44
0.8~0.97
Outdoor unit
Fuse rated
maximum running
current
current
25A 18.5A
Stop valve
mounting plate
Clamps (accessories)
Power wiring
Clamps
(accessories)
Note
After electrical work is completed, check to make sure there are no
loose connections for the connectors of each electrical component
in the electrical component box and the terminals.
6-4 Precautions to wiring connection between
units
• Connect the wiring between units of the single system as
shown in the figure below. (No polarity)
Terminal block (X2M)
TO IN/D UNIT
F1 F2
F1
Using the
shielded 2-core
wire (no polarity)
About length of the electric wires between units
Exceeding the following length may result in abnormal signal
transmission. Be sure to observe.
Max. wiring length 300m or less
Total wiring length 600m or less
Max. number of branches 16
Earth wire
F1 F2 F1 F2
TO IN/D UNIT TO OUT/D UNIT
Keep proper
distance
Shielded part
Electric wires
between units
Earth wire
(yellow/green)
Connecting to
TO OUT/D UNIT
the power supply
F1 F2
is forbidden
F2
Indoor unit
9