56-EN
55-EN
– 28 –
EN
¡
Group control through a remote controller
If U series models (TU2C-Link) are combined with models other than U series (TCC-Link),
the wiring speci
fi
cations and maximum number of connectable indoor units will be changed.
Group control of multiple indoor units (16 units) through a single remote controller switch
B
A
B
A
B
A
B
A
B
A
B
A
(A.B)
16
.
o
N
15
.
o
N
4
.
o
N
3
.
o
N
2
.
o
N
1
.
o
N
Indoor unit
Remote controller
Max. number of connectable indoor units, and communication type
Unit type
Outdoor unit
U series U series U series U series
ᅷ
ᅷ
ᅷ
ᅷ
Indoor unit
U series U series
ᅷ
ᅷ
U series U series
ᅷ
ᅷ
Remote controller
U series
ᅷ
U series
ᅷ
U series
ᅷ
U series
ᅷ
Communication type
TU2C-
Link
TCC-Link
Max. number of connectable
units
16
8
ᅷ
: Other than U series
¡
Power supply wire connection
1. Insert the power supply wires from lower right of the electrical control box and connect them to the power
terminal blocks and the earth line to the earth screw, and then
fi
x each of the
fi
ve wires with each cord clamp
and binding band.
2. When
fi
nished wiring the power supply wires, get each of
fi
ve wires through the cutout on the sealing material
(black) under the cord clamp to pull it outside the electrical control box. Tear upper and lower of the cutout on
the sealing material with your hands before getting the wires through the cutout.
3. Get the binding band through two holes in the right part of the valve
fi
xing plate and
fi
x the power supply wires
with it.
25 mm
or more
Tear upper and lower of the
sealing material.
Earth line
Power supply wire
Get the binding band through the hole at
one side of the clamp base and
fi
x the
power supply wire securely with it.
Sealing material
Clamp base
Connection of power supply wires and communication wires
Remove knockouts on the piping / wiring panel on the front of the unit and the panel on the bottom to get the
power and communication wires through the holes.
Earth screw
Communication
terminal block
Communication wires
Cord clamps
Power supply terminal
block
Power supply wires
Power supply
wires
Binding band
Knockout for the
power supply
wire 2
Power supply
wires
Knockout for the
communication wire
Communication
wires
Knockout for
the power
supply wire 1
NOTE
Be sure to separate the power supply wire and communication wires.
