En-10
A. For solid core wiring
(1) To connect the electrical terminal, follow the below
diagram and connect after looping it around the end of the
cable.
(2) Use the specified cables, connect them securely, and
fasten them so that there is no stress placed on the
terminals.
(3) Use an appropriate screwdriver to tighten the terminal
screws. Do not use a screwdriver that is too small,
otherwise, the screw heads may be damaged and prevent
the screws from being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise,
the screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Please do not fix two power supply cables with one screw.
Strip 25 mm
Loop
Screw with
special washer
Cable
Cable end (Loop)
Terminal block
Screw with
special
washer
Cable end
(Loop)
Cable
WARNING
• When using solid core cables, do not use the ring
terminal. If you use the solid core cables with the ring
terminal, the ring terminal’s pressure bonding may
malfunction and cause the cables to abnormally heat up.
B. For strand wiring
(1) Use ring terminals with insulating sleeves as shown in the
figure below to connect to the terminal block.
(2) Securely clamp the ring terminals to the cables using an
appropriate tool so that the cables do not come loose.
(3) Use the specified cables, connect them securely, and
fasten them so that there is no stress placed on the
terminals.
(4) Use an appropriate screwdriver to tighten the terminal
screws. Do not use a screwdriver that is too small,
otherwise, the screw heads may be damaged and prevent
the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise,
the screws may break.
(6) See the table for the terminal screw tightening torques.
(7) Please do not fix two power supply cables with one screw.
]1
6.1. Electrical requirement
Voltage rating
230 V
Operating range
198 - 264 V
Recom-
mended cable
size (mm
2
)
Cable type
Remark
Power
supply cable
2.5
Type245 IEC57
or equivalent
1ø 50 Hz
198 - 264 V
2 Cable + ground
Transmission
cable
0.33
LONWORKS
compatible cable
22 AWG
LEVEL 4 (NEMA)
non-polar 2 core,
twisted pair solid
core diameter
0.65 mm
Remote
control cable
0.33
Sheathed
PVC cable*
Polar 3 core
Twisted pair
*: Use shielded cable in accordance with local rules for
remote control cable.
]1
6.2. Wiring method
(EXAMPLE)
POWER SUPPLY
OUTDOOR UNIT
BREAKER
POWER SUPPLY
TRANSMISSION
TRANSMISSION
POWER
SUPPLY
POWER
SUPPLY
REMOTE
CONTROL UNIT
(MASTER)
REMOTE
CONTROL UNIT
POWER
SUPPLY
REMOTE
CONTROL
TRANSMISSION
TRANSMISSION
POWER
SUPPLY
POWER
SUPPLY
REMOTE
CONTROL
REMOTE
CONTROL
INDOOR UNIT
POWER
SUPPLY
REMOTE
CONTROL UNIT
(SLAVE)
INDOOR UNIT
INDOOR UNIT
BREAKER
BREAKER
BREAKER
]1
6.3. Unit wiring
• Before attaching the cable to terminal block.
6.3.1. Power supply cable
Power supply cable
30 mm
90 mm
Earth cable
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