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41-EN 42-EN
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
• 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 flashes on the display part.
During setup of automatic address, the remote controller operation is not accepted.
Required time up to the finish of automatic addressing is approx. 5 minutes.
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 specifications)
▼ Group control in single system
• 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 flashes 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 finish of automatic addressing is approx. 5 minutes.
In some cases, it is necessary to change the address manually after setup of the automatic address according to the
system configuration of the group control.
• The follow mentioned system configuration is a case when complex systems in which systems of the simultaneous
twin unit is controlled as a group by a remote controller.
Outdoor unit
Remote
controller
Indoor unit Indoor unit
Finish of address setup by power-ON
Outdoor unit
Indoor unitIndoor unit
Indoor unit
Indoor unit
Indoor unit
Remote controller
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Finish of address setup by power-ON
(Example) Group control for complex system
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.
Manual address setting
1 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more.
2 Push OFF timer button to confirm the selected indoor unit.
<Line address>
3 Push the menu button until the Code No. flashes. And using the [ ] [ ] buttons, specify the Code No. [12].
4 Push the menu button until the Set data flashes. And using the [ ] [ ] buttons, set a line address.
5 Push OFF timer button to confirm the Set data.
<Indoor unit address>
6 Push the menu button until the Code No. flashes. And using the [ ] [ ] buttons, specify the Code No. [13].
7 Push the menu button until the Set data flashes. And using the [ ] [ ] buttons, set an indoor unit address.
8 Push OFF timer button to confirm the Set data.
<Group address>
9 Push the menu button until the Code No. flashes. And using the [ ] [ ] buttons, specify the Code No. [14].
10 Push the menu button until the Set data flashes. And using the [ ] [ ] buttons, set a group address. If the
indoor unit is individual, set the address to “0000”. (header unit: 0001, follower unit: 0002)
11 Push OFF timer button to confirm the Set data.
12 When all the settings have been completed, push ON/OFF button to finish the settings.
(Return to the normal mode)
Outdoor unit
Line system
Indoor No.
After setup of
automatic
address
(Example of random
setup)
After setup
change of
manual address
(Example of address setup change)
Outdoor unit
Indoor unit Indoor unit
Indoor unit
Line address
Group address
Indoor address
Address: 1-1-1
Address: 2-1-2 Address: 2-2-2
Address: 1-1-2 Address: 2-1-2
Address: 3-3-1
Procedure
example 1
<Single system> <Twin system>
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