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Indoor unit
Number of indoor
units in one group
Number of remote
Number
controllers in one group
of control
Number of system
unit
controllers in one group 0 to 3 for which have one remote controller.
Number of indoor units
interlocked with one
ventilation unit.
*1 Master system controllers and slave system controller
Management range of
PAC-SC30GRA
When using a system consisting only of PAC-
SC30GRA.
PAC-SC30GRA is set as the master system
controller. In this case, the group settings are
performed with PAC-SC30GRA.
NOTE: It is not possible to set the master and slave settings with more than one group remote
controller and control the same groups. Also, the groups listed below cannot be set.
• Unit group which are not under the management of the master controller and are managed by the
slave system controller.
Group
• A common group is managed by more than two master controllers.
Group
• A slave system controller which exceeds the management range of the master system controller of
two or more.
Master system
controller 1
Group
Maximum 16 (maximum 8 groups)
0 to 16
0 to 2
0 to 4 (including the number of remote controller in one group)
0 to 16 (some type of ventilation unit can be only operate when inter-
locked to a maximum of 9 units)
Unit
Master system
controller
Master system
controller 1
Slave system controller
Group
Specification
Management range of the
master system controller
Management range
of PAC-SC30GRA
Unit
When using a system where PAC-SC30GRA is
controller by a different system controller.
PAC-SC30GRA is set as the slave system
controller. In this case, the group settings are
not performed with PAC-SC30GRA.
Slave system
controller
Group
Master system
controller 2
Group
Group
Unit
Group
Group
Master system
controller 2
Group
5
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