Mitsubishi Electronics TC-24A installation manual Operation mode

Operation mode

Displays the current operation mode Cooling: Heating:

Block No.

Displays the block number. All units in each group are operated in the same operation mode. The TC-24A automatically creates blocks based on the refrigerant pipe connection information and the group setting information on each unit.

		Display Block Information button
	Displays the addresses of
	the outdoor units and the
①	names of the groups in a
	specific block.
②
③

Group list

Displays the number assigned to the indoor unit groups that are connected to the outdoor units in a specific block. Select a representative group from this list when the [Representative Group] is selected for the System-Changeover mode.

1.Touch the 2 System-Changeoverbutton on the [System management] screen.

2.Touch the ① Change mode button to select between [None], [Auto], and [Representative Group].

System-changeover	Setting
mode
None (default)	Select this option so as not to use the System-Changeover function.
	The operation modes (cooling/heating) will be changed-over based on the following:
	Temperature differences between the preset temperature and the room temperature of
Auto	all indoor unit groups that are connected to a specific outdoor unit, AND the capacity of
	each indoor unit in each group.
	* The operation mode of the groups of units that are not operating, or the ones that are operating in the
	Fan or Auto mode, will remain the same.
	The operation modes (Cooling/Heating) will be changed-over based on the temperature
	difference between the preset temperature of the representative group and the room
Representative	temperature.
	* When the air conditioning units in the Representative Group are not operating, or they are operating in
Group
	the Fan or Auto mode, the system-changeover function will work in the same way as when the
	system-changeover mode is set to Auto.

When [Representative Group] is selected, the group that is currently designated as the Representative Group will be displayed.

*To designate a different group as the Representative Group, select a new group on the screen that appears (shown right) when the

② Representative Group button is pressed, and then touch the OK button.

・The initial setting for the Representative Group is the group in a specific block with the smallest group number.

3. Save the ③ Save button on the [System-Changeover] screen.

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