Mitsubishi Electric AE-200A Instruction Book page 71

[2] Registering air conditioners to a group
(1) To register air conditioners to each group, touch the "Unit
selection" button under the target group name. A screen to
select the units will appear.
Select the group type in the [Model] section, and select
the address numbers of the units to be registered.
The selected unit addresses will appear with an orange
frame. Touch again to deselect.
Note: Each group can contain up to 16 air conditioners.
Note: The addresses of the units that have been registered
to other groups will appear with a gray background and
cannot be selected.
(2) To change the unit icon to be used, touch the icon. A
screen to select an icon will appear. Select an icon to be
used, and touch [OK].
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