Mitsubishi Electric EB-50GU-A Instruction Book page 21

4-3-3. Registering remote controllers to a group
(1) To register remote controllers to a group, click the [Remote
controller registration] field next to the target group name. The
[Select Unit Addresses] screen will appear.
Select the address numbers of the remote controllers to be
registered. The selected unit addresses will appear with a
yellow-green background.
Click again to deselect. The deselected addresses will appear
with a light-gray background.
Note: Each group can contain up to two remote controllers.
Note: Each group can contain up to four remote and system
controllers combined.
Note: MA remote controllers do not need to be registered to a group.
4-3-4. Registering system controllers to a group
(1) To register system controllers to a group, click the [System
controller registration] field next to the target group name. The
[Select Unit Addresses] screen will appear.
Select the address numbers of the system controllers to be
registered. The selected unit addresses will appear with a
yellow-green background.
Click again to deselect. The deselected addresses will appear
with a light-gray background.
Note: Each group can contain up to four remote and system
controllers combined.
4-3-5. Registering AHC to a group
(1) To register an AHC to a group, click the [AHC registration] field
next to the target group name. The [Select Unit Addresses]
screen will appear.
Select the address number of the AHC to be registered.
The selected unit address will appear with a yellow-green
background.
Click again to deselect. The deselected address will appear with
a light-gray background.
Note: Each group can contain one AHC.
Note: AHC must be registered to a group in which air conditioners
are registered. Do not register AHC to a group in which Air To
Water (PWFY) units or LOSSNAY units are registered.
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