Toshiba RAV-SM407MUT-E Installation Manual page 21

Group control for system of multiple units
One remote controller can control maximum 8 indoor units as a group.
▼ Group control in single system
Outdoor unit Outdoor unit Outdoor unit
Indoor unit
Indoor unit Indoor unit
Remote controller
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 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.
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 configuration 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>
Outdoor unit Outdoor unit
Indoor unit Indoor unit
Indoor No.
(Example of random
setup)
After setup of
automatic
Address: 1-1-2 Address: 2-1-2
address
Line address Group address
Indoor address
(Example of address setup change)
After setup
Address: 2-1-2
Address: 1-1-1
change of
manual address
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.
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Outdoor unit Outdoor unit
Indoor unit Indoor unit
(Max. 8 units)
Procedure
example 1 <Triple system>
Outdoor unit
Indoor unit
Indoor unit Indoor unit
Remote controller
Address: 3-1-2 Address: 2-2-2
Address: 3-3-1
Address: 2-2-2 Address: 3-1-2 Address: 3-2-2
[Procedure example]
Manual address setup procedure
While the operation stops, change the setup.
(Stop the operation of the unit.)
3
-2,
4
-2,
5
-2
7
1
1
Push +
for 4 seconds or more. After a while, the
display part flashes as shown below. Check
the displayed CODE No. is [10].
• When the CODE No. is other than [10], push
button to erase the display and repeat
procedure from the first step.
(After pushing
remote controller is not accepted for
approx. 1 minute.)
(For a group control, No. of the firstly displayed
indoor unit becomes the header unit.)
Indoor unit
(* Display changes according to
the model No. of indoor unit.)
Address: 1-2-2
2
Every time
indoor UNIT No. in the group control is
displayed in order. Select the indoor unit of
which setup is changed.
In this time, the position of the indoor unit of which
Address: 3-3-2
setup is changed can be confirmed because fan of
the selected indoor unit operate.
– 20 –
3
1. Specify CODE No. [12] with TEMP.
buttons.
(CODE No. [12]: Line address)
2. Change the line address from [3] to [2] with TIME
/ buttons.
7
3. Push
3
In this time, the setup finishes when the display
-1,
4
changes from flashing to lighting.
-1,
5
-1,
Indoor UNIT No. before setup change is displayed.
6
3
-3,
4
-3,
5
-3,
2,6
+ buttons simultaneously
4
1. Specify CODE No. [13] with TEMP.
buttons.
(CODE No. [13]: Indoor address)
2. Change the indoor address from [3] to [2] TIME
button, operation of the
/ buttons.
3. Push
In this time, the setup finishes when the display
changes from flashing to lighting.
Indoor UNIT No. before setup change is displayed.
button is pushed, the
/
button.
/
button.
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