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Product Features - Controller interface
Product Features
TC-24B is a centralized controller with color LCD touch panel designed to control air conditioning units,
LOSSNAY, Air To Water (PWFY)
*1
, and general equipment using Mitsubishi Electric’s DIDO controller
(PAC-YG66DCA).
TC-24B can control up to 24 units/24 groups.
*2
TC-24B features such basic functions as operations and monitoring of air conditioning units and schedule-
control functions. TC-24B also can prohibit the local remote controller operation for each room (group),
which may lead to energy savings.
Basic functions can be accessed through the TC-24B touch panel. ON/OFF, Hold, and Setback operations
that control air conditioning units collectively are accessed by using the buttons next to the touch panel.
TC-24B display screen consists of three main screens.
Home screen: Monitors the operation status of the units.
Main Menu screen: Leads to the setting screens to set various settings.
Maintenance screen: Initial setting screens to set the basic settings such as group settings. (Explained in
the Installation Manual)
*1 “Booster unit” and “Water HEX unit” are referred to as “Air To Water (PWFY).”
*2 Group is a group of air conditioning units and controllers and is the smallest unit that the TC-24B can control.
The maximum number of units that each group can contain is 16.
* AHC (Advanced HVAC CONTROLLER) cannot be controlled from TC-24B.
Controller interface
1
2
3
4
5
Buttons
2
,
3
, and
4
have indicators on the top.
▌
1
Display/Touch panel
TC-24B features a 5” color LCD touch panel. Touch panel displays the operation status of the units.
Function settings such as weekly schedule settings are accessed through the touch panel. The backlight
lights up when the panel is touched, and lights off after certain period of time. The backlight will remain lit
as long as an error exists.
▌
2
Collective ON/OFF button
*1
The button allows the user to turn on or off the air conditioning units, LOSSNAY units, Air To Water
(PWFY) units, and DIDO controllers in all groups collectively.
The indicator indicates the operation status of the units by lighting and blinking, or by turning off.
Unlit: Indicates that all units are stopped.
Lit: Indicates that one or more units are in operation.
Blinking: Indicates that an error is occurring.
▌
3
HOLD button
*1*2
The button enables the Hold function that allows the user to retain the current operation status for the
selected groups collectively. (Refer to P25 for the details of the Hold function.)
Unlit: Normal operation
Lit: Hold-ON
▌
4
SETBACK button
*1*3
The button sets the Setback mode for the selected groups collectively. Depending on the room
temperature, indoor unit will automatically operate in either the cooling or heating mode and keep the
room temperature within the preset range. The wider the set temperature range, the greater the energy
saving.
Unlit: Normal operation mode
Lit: Setback mode
▌
5
Power indicator
The power indicator lights up when the power to TC-24B is turned on.
Unlit: Power OFF
Lit: Power ON
*1 When the button is touched while the operation is prohibited, the LED will blink twice.
*2 Buttons
2
,
3
, and
4
are available only on the Home screen.
*3 This function cannot be used for the air conditioning unit groups without the Setback mode.
