– 19 –
Group control for system of multiple units
One group can control up to 16 (TU2C-Link) or 8 (TCC-Link) indoor units with one remote controller.
(Refer to the Wiring speci
fi
cations)
▼
Group control in single system
Outdoor unit
Indoor unit
Remote controller
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Finish of address setup by power-ON
• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, follow to
“Electrical connection”.
• Wiring between lines is performed in the following procedure.
Connect the terminal block (A/B) of the indoor unit connected with a remote controller to the terminal blocks (A/ B)
of the indoor units of other indoor units by wiring the inter-unit wire of the remote controller.
• When the power supply has been turned on, the automatic address setup starts and which indicates that address
is being set up
fl
ashes on the display part in about 3 minutes. During setup of automatic address, the remote
controller operation is not accepted.
Required time up to the
fi
nish of automatic addressing is approx. 5 minutes.
NOTE
In some cases, it is necessary to change the address manually after setup of the automatic address according to
the system con
fi
guration of the group control.
• The follow mentioned system con
fi
guration is a case when complex systems in which systems of the
simultaneous twin and simultaneous triple unit is controlled as a group by a remote controller.
(Example) Group control for complex system
Line system
<Single system> <Twin system>
Indoor No.
Outdoor unit
Indoor unit
Address: 1-1-2
Address: 1-1-1
Indoor address
Line address
Group address
Address: 2-1-2
Address: 2-1-2
Address: 3-3-1
Address: 2-2-2
Outdoor unit
Indoor unit
Indoor unit
Procedure
example 1
After setup
of automatic
address
After setup
change of
manual address
(Example of
random setup)
(Example of address setup change)
The above address is set by the automatic addressing when the power is turned on. However, line
addresses and indoor addresses are set randomly. For this reason, change the setting to match line
addresses with indoor addresses.
■
8°C operation
Pre-heating operation can be set for cold regions
where room temperature drops to below zero.
Follow to the basic opreration procedure
(
1
→
2
→
3
→
4
→
5
→
6
→
7
).
• Specify
[d1]
for the Code No. in Procedure
4
.
• Select the following data for the set data in
Procedure
5
.
SET DATA
8°C Operation setting
0000
None (Factory default)
0001
8OC Operation setting
■
Installing optional parts
When installing optional parts, data setup may be
required with remote controller. Be sure to set the
data, according to Installation Manual for optional
parts.
■
Information
The following functions require a connection with the
RBC-AMTU
½½½
and RBC-AMSU
½½½
remote
controller.
For details, refer to the manual included with the
remote controller.
• Individual unit selection during group operation
• Individual setting of louver position (wind direction)
• Swing type setting
• Louver lock (no swing) setting
• Energy saving operation (Power saving operation)
• Noti
fi
cation of
fi
lter cleaning time
■
Others
The following functions can be used with this model.
Refer to the Service Manual for more information.
• Rotation / backup operation
• Free cooling
• Secondary heating
• Power shift
■
Group control
Simultaneous twin system
A combination with an outdoor unit allows
simultaneous ON / OFF operation of the indoor units.
The following system patterns are available.
- Two indoor units for the twin system
▼
Twin system
Outdoor unit
Indoor unit
Finish of address setup by power-ON
Indoor unit
Remote
controller
• For wiring procedure and wiring method, follow to
the “Electrical connection” in this manual.
• When the power supply has been turned on, the
automatic address setup starts and which indicates
that address is being set up
fl
ashes on the display
part.
During setup of automatic address, the remote
controller operation is not accepted.
Required time up to the
fi
nish of automatic
addressing is approx. 5 minutes.