Installation Manual
‒
35
‒
35-EN
Group control for system of multiple units
One remote controller can control maximum 8 indoor units as a group.
q
Group control in single system
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Indoor unit
Remote controller
(Max. 8 units)
Indoor unit
Indoor unit
Indoor 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 configuration 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
Indoor No.
After setup of
automatic
address
After setup
change of manual
address
(example of
random setup)
(example of address
setup change)
Address: 1-1-1
Address: 1-1-2
Address: 2-1-2
Address: 2-1-2
Address: 2-2-2
Address: 3-3-1
Address: 3-1-2
Address: 3-1-2
Address: 3-2-2
Address: 2-2-2
Address: 3-3-2
Address: 1-2-2
Indoor address
Line address
Group address
Procedure
example
1
Outdoor unit
<Single system> <Twin system>
<Triple system>
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Remote controller
Indoor unit
Indoor unit
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.
