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Operating The Lossnay Group; Operating The General Equipment Group; Multiple Group Selection Screen; Disabling Functions - Mitsubishi Electric TC-24B Instruction Book

Air conditioning control system touch controller
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Basic Operations - Operation screen (GROUP screen)

Operating the LOSSNAY group

Displays that are not marked by numbers on the screen are the same as those on the Air conditioning unit
group screen.
(2)
(1)
Mode
Touch (1) to access the modes in the order "Bypass, Heat recovery, Auto."
The selected mode will appear in the area marked (2).
* Available mode varies depending on the model. Modes that are
unavailable do not appear.
Fan speed setting
Touch (3) to access the fan speeds in the order "Low, High."
The selected fan speed will appear in the area marked (4).

Operating the general equipment group

Displays that are not marked by numbers on the screen are the same as those on the Air conditioning unit
group screen. Displays the general equipment type.
*When changing icons, refer to the Installation Manual.
ON/OFF operation
• When the general equipment is turned on, the output contact of DIDO controller (PAC-YG66DCA) also
turns on.
• When the general equipment is turned off, the output contact of DIDO controller (PAC-YG66DCA) also
turns off.
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Multiple group selection screen

Allows the user to collectively operate all groups that are selected on the
GRID or LIST screen.
When selected groups include two or more unit types, select the unit type
to be operated. Then, the target group will be the selected unit group.
(4)
(3)
(1)

Disabling functions

Lock Buttons
When TC-24B locks its own functions for ON/OFF, Mode, Temperature, Fan Speed, or Hold, the icon
above will appear on the corresponding buttons, and the functions will be disabled.
When the ON/OFF function is locked, the Collective ON/OFF button will be enabled.
Example) ON/OFF operation lock
During receiving the external input signal
The ON/OFF function cannot operate when the following displays appear.
Displays the emergency stop level-signal input
Operation restrictions
If the ON/OFF, Mode, Temperature, Air Direction, and Fan Speed buttons on the TC-24B are disabled from
other controllers,
If the TC-24B denies other controllers access to itself, other controllers cannot disable the functions on the
TC-24B.
If a signal is received to force the Hold setting from other controllers, the above icon will appear on the
relevant operation button and the button will become unresponsive.
Basic Operations - Multiple group selection screen
Displays ON/OFF level-signal input
will appear on the buttons, and these buttons will not be available for selection.
* To operate the Air conditioning unit group
Check the selected groups.
Touch (1) to show the
selected group confirmation
screen.
The button cannot be
operated.
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