Johnson Controls HIDH018B21S, Engineering Manual

Page: 383 / 668

CONTROL SYSTEM
TC-15001-rev.3
6-67
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* Group :
Indicates the minimum number of operational units controlled by one mini central controller. One remote
control group is considered as one group, and the same setting will be applied. A maximum of 32 groups (4
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one mini central controller.)
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Indicates the number of operational units combining groups into one. The mini central controller can
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* Remote Control Group:
Indicates multiple indoor units (a maximum of 16) connected by communication line to the wired controller.
Indoor units registered as same the remote control group are applied using the same settings.
* Main Unit:
Indicates the representative unit of the remote control group. The mini central controller transmits control
commands to this representative unit.
* Sub Unit:
Indicates indoor units other than the main unit.
<Main Unit Registration>
* The main unit registration is available for only 1 indoor unit per 1 group. Thus, duplicate registration
of the main unit is not possible for the same group. If the main unit registration is changed for
something reason, cancel the current main unit registration, and register the new main unit again.
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* When the indoor unit with the automatic louver swing and the indoor unit without the automatic louver
swing are mixed in same remote control group, register the indoor unit with the auto-louver as the
main unit. If the indoor unit without auto-louver is registered as the main unit, the auto-louver setting
cannot be applied for this group.
* If the group with the communication cable connected to the wired controller is not used, the indoor
unit without the wired controller is not registered as the main unit.
<Sub Unit Registration>
* A maximum 15 sub units can be registered in the same remote group with the main unit.
* Indoor units without a wired controller cannot be registered as sub units.
* When changing the registration of the indoor unit which is already registered as a sub unit, cancel
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Group Group Group Group Group Group
Block
Without
Communication
Cable
Block
Outdoor Unit
Indoor Unit
Wired Controller
One Wired Controller
equals one group.
One unit is also
handled as one group.
One Wired Controller
equals one group.