Mitsubishi Electronics TC-24A User Manual

Air-conditioner Control System TOUCH CONTROLLER

INSTRUCTION BOOK

MODEL

TC-24A

Safety Precautions ............................................................ 2

Function List ...................................................................... 4

Names and Functions of Controller Components ............. 8

Screen Configuration [HOME screen] ............................... 10

Buttons [HOME screen]..................................................... 12

Icon Displays [HOME screen] ........................................... 14

Basic Operations ............................................................... 18

Screen selection ........................................................................ 18

Group selection.......................................................................... 19

Operating the Air conditioning unit group .................................. 20

ON/OFF operation ........................................................................ 20

Mode............................................................................................. 20

Temperature setting ..................................................................... 21

Interlocked ventilation units(LOSSNAY)/Fan speed/Air direction/Louver settings

...... 23

Hold Function Setting ................................................................... 24

Operating the LOSSNAY group................................................. 24

Mode

...................................................................................... 24

Fan speed setting.................................................................... 24

Operating the General equipment group ................................... 24

ON/OFF operation................................................................... 24

Multiple group selection screen ................................................. 25

Disabling functions..................................................................... 25

Menu Screen [Button Settings].......................................... 26

Usage - Main Menu Settings ............................................. 28

󱫀 Time and Schedule screen ................................................... 28

󱫂 Restrictions Settings ............................................................. 36

󱫄 Control Panel ........................................................................ 42

󱫆 System Management ............................................................ 50

Maintenance...................................................................... 54

Touch Panel Cleaning screen.................................................... 54

Troubleshooting................................................................. 55

Before using the controller, read this

Instruction Book carefully to ensure

proper operation.

Retain this Instruction Book for future

reference.

Make sure that this manual, Installation

Manual, and Initial Setting Manual are

passed on to any future air condition

system users.

To ensure safety and proper operation of

the unit, the unit should only be installed

by qualified personnel.

Safety Precautions

●

Thoroughly read the following safety precautions prior to installation.

●

Observe the following precautions to ensure safety.

●

Nomenclature

●

After reading this manual, pass it on to the end user to retain for future reference.

●

Keep this manual for future reference and refer to it as necessary. This manual should be made available to those who repair or relocate

the controller. Make sure that the manual is passed on to any future TC-24A users.

General precautions

WARNING

Indicates a risk of death or serious injury.

CAUTION

Indicates a risk of serious injury or structural damage.

All electric work must be performed by qualified personnel.

WARNING

(Prohibited actions) (Do not touch) (No water) (No wet hands) (Injury hazards) (Important actions)(Electric shock hazards)

CAUTION

WARNING

Do not install the controller where there is a risk of leaking flammable gas. If flammable gas accumulates around the controller, it may ignite and cause a fire or explosion.

Properly dispose of the packing materials. Plastic bags pose suffocation hazard to children.

Do not install the unit in a place where large amounts of oil, steam, organic solvents, or corrosive gases, such as sulfuric gas, are present or where acidic/alkaline solutions or sprays are used frequently. These substances can compromise the performance of the unit or cause certain components of the unit to corrode, which can result in electric shock, malfunctions, smoke, or fire.

Precautions during installation

To reduce the risk of shorting, current leakage, electric shock, malfunctions, smoke, or fire, do not wash the controller with water or any other liquid.

Properly install all required covers to keep moisture and dust out of the controller. Dust accumulation and water can cause electric shock, smoke, or fire.

To reduce the risk of electric shock, malfunctions, smoke or fire, do not operate the switches/buttons or touch other electrical parts with wet hands.

To reduce the risk of injury or electric shock, before spraying a chemical around the controller, stop the operation and cover the controller.

To reduce the risk of injury or electric shock, stop the operation and switch off the power supply before cleaning, maintaining, or inspecting the controller.

To reduce the risk of fire or explosion, do not place flammable materials or use flammable sprays around the controller.

To reduce the risk of damage to the controller, do not directly spray insecticide or other flammable sprays on the controller.

To reduce the risk of injury, wear protective gear when

working on the controller. To reduce the risk of electric shock or malfunctions, do not touch the touch panel, switches, or buttons with a pointy or sharp object.

To reduce the risk of injury and electric shock, avoid

contact with sharp edges of certain parts.

To avoid injury from broken glass, do not apply

excessive force on the glass parts.

The controller should be repaired or moved only by qualified personnel. Do not disassemble or modify the controller. Improper installation or repair may cause injury, electric shock, or fire.

Precautions for moving or repairing the controller

To avoid damage to the controller, use appropriate tools to install, inspect, or repair the controller.

To avoid discoloration, do not use benzene, thinner, or chemical rag to clean the controller.To clean the controller, wipe with a soft cloth soaked in water with mild detergent, wipe off the detergent with a wet cloth, and wipe off water with a dry cloth.

TC-24A is designed for exclusive use with the Building Management System by Mitsubishi Electric. The use of this controller for with other systems or for other purposes may cause malfunctions.

To avoid damage to the controller, do not overtighten the screws.

To avoid damage to the controller, provide protection against static electricity.

Additional precautions

To reduce the risk of shorting, electric shock, fire, or malfunction, do not touch the circuit board with tools or with your hands, and do not allow dust to accumulate on the circuit board.

WARNING CAUTION

Function List

The table below summarizes the functions that are available on the TC-24A.

Refer to the pages listed for details.

Function Description

Page

Screen

Home

Main

Switches the ON/OFF operation of the units such as air conditioning units. The LED on the Collective ON/OFF button will light up when one or more units are in operation and off when all units are stopped. Switches the mode "Cooling/Dry/Fan/Auto/Setback/Heating" for each group or all groups. (Switches the mode "Bypass/Heat recovery/Auto" for LOSSNAY groups.) Automatically switches the operation mode between cooling and heating to maintain the room temperature within the set temperature range. The maximum/minimum limit temperature can be overridden. Sets the set temperature for each group or all groups.

Adjusts the fan speed for each group or all groups.

Adjusts the air direction for each group or all groups. Enables/disables the louver for each group or all groups. The ON/OFF operation of the interlocked ventilation unit is interlocked with the ON/OFF operation of the air conditioning unit. The interlocked ventilation units can be independently operated for ON (High/Low)/OFF for each group or all groups. (When the ventilation unit is interlocked with the air conditioning unit, the ventilation mode cannot be used.) Sets the date, time, and display formats. The current time will appear at the top right corner of the HOME screen.

• Allows the user to set the Weekly schedule for each group.

• Maximum of 16 events can be scheduled for each day.

• The types of actions that can be scheduled are as follows: ON/OFF, Mode, Set Temperature, Fan Speed, Air Direction, and Remote Controller Operation Prohibition.

• Maximum of 12 patterns can be configured for the Weekly schedule, and 5 for 1-day schedule.

• 1-day schedule overrides the Weekly schedule.

Enables/disables the hold function for each group or all groups. * When the hold function is enabled, the current operation

status is retained until the hold function is disabled.

Automatically switches the entire system (all indoor units that are connected to the same outdoor units) to Cooling or Heating by periodically monitoring the room temperature and the preset temperature of each group and determining the best operation mode.

· The system changeover function is not available for the following types of products:Simultaneous Cooling/Heating units (with automatic mode change function), Mr. SLIM, LOSSNAY, and DIDO controller.

ON/OFF Operation

Mode *1

Setback Mode

Set Temperature *1

Fan Speed *1

Air Direction *1 Louver *1

ON/OFF Operation for Interlocked Ventilation *1

Date and Time

Weekly/1-day schedule

HOLD

System Cangeover

Unit Operation

Time and Schedule

System Management

HOME screen (GRID screen, LIST screen, GROUP screen, Multiple group selection screen), Set Schedule screen, Collective ON/OFF button

GROUP screen, Multiple group selection screen, Set Schedule screen SETBACK button (only when enabling/disabling the SETBACK mode)

GROUP screen,

GROUP screen, Multiple group selection screen, Set Schedule screen

GROUP screen, Multiple group selection screen, Set Schedule screen GROUP screen, Multiple group selection screen

GROUP screen, Multiple group selection screen

Date and Time screen

Set Schedule screen, Check Current Settings screen

GROUP screen, Multiple group selection screen, HOLD button

System Changeover screen

23 23

*1: Available functions vary depending on the unit type. Only the functions that are supported by the connected units

Page

Screen

Home

Main

Screen/Button name

HOME screen (GRID screen, LIST screen, GROUP screen, Multiple group selection screen), Set Schedule screen, Collective ON/OFF button

GROUP screen, Multiple group selection screen, Set Schedule screen SETBACK button (only when enabling/disabling the SETBACK mode)

GROUP screen,

Multiple group selection screen

, Set Schedule screen, SETBACK button

GROUP screen, Multiple group selection screen, Set Schedule screen

GROUP screen, Multiple group selection screen, Set Schedule screen GROUP screen, Multiple group selection screen

GROUP screen, Multiple group selection screen

Date and Time screen

Set Schedule screen, Check Current Settings screen

GROUP screen, Multiple group selection screen, HOLD button

System Changeover screen

23 23

Function List (cont'd)

Function Description

Page

Screen

Home

Main

Lock Buttons

Set Temperature Range Limit

Prohibit Remote Controller

Display Format

Button Setting

HOME screen Operation Mode Setting

Volume Control

Error

Filter sign

Touch Panel Cleaning Mode Touch Panel Calibration Mode

External input

External output

Restrictions Settings

Basic Settings

Maintenance

Miscellaneous

Lock Buttons screen

Set Temperature Range Limit screen

Set Schedule screen, Prohibit Remote Controller screen

Display Format screen

Setback Button Setting screen, Hold Button Setting screen, Collective Operation Button setting screen

Group Icon Setting screen

Volume control screen

HOME screen (GRID screen, LIST screen, GROUP screen), Status List screen

Touch Panel Cleaning screen

Touch Panel Calibration screen

Locks the following functions: ON/OFF, Mode (including SETBACK), Set Temperature, Fan Speed, and HOLD. Limits the available temperature range for the local remote controllers (each group or all groups). Locks the following buttons on the local remote controllers: ON/OFF, Mode, Set Temperature, and Filter Reset buttons (collectively or by group) Selects the display formats for the following items: Display language, temperature unit, room temperature, display or non-display of Cooling/Heating mode icons (during Auto mode), and backlight timer, and group names.

• Selects the groups that the operation applies to when the Collective ON/OFF, HOLD, or SETBACK button on the controller is pressed. All groups are selected by default. The maximum and minimum temperatures can be set for the SETBACK operation.

When the Group icon is touched, the action differs depending on the operation mode. Default is set to the operation mode 2.

Operation mode1: Turns ON/OFF the units in the group

whose Group icon is touched.

Operation mode2: Displays the check mark when Group icon

is touched.Touch the Group icons of the groups to be operated, and then touch the "OPERATE" button to move to the Group screen. Multiple groups can be selected. Use this mode when operating the multiple groups collectively.

Operation mode3: Directly moves to the Group screen of the

group whose Group icon is touched. Sets the sound volume and screen brightness. If an error occurs on the TC-24A controller or the units and controllers it controls, the LED on the Collective ON/OFF button will blink. If an error occurs on the indoor or LOSSNAY units, will appear on the corresponding group icon on the HOME screen. The error code can be verified and reset on the Status List screen. Filter Icon will appear on the HOME screen when the filter is due for cleaning. The icon can be removed from the Status List screen. Disables the touch panel to allow the user to clean the panel. Calibrates the touch panel if the touch panel does not respond correctly when touched. Receives input signals from external devices and start/stop all groups of units or permit/prohibit operations from the local remote controllers. Requires cable connections. Outputs the operation status of the units (ON/OFF) or error signals to external devices collectively, using contact signals. Requires cable connections.

Page

Screen

Home

Main

Screen/Button name

Lock Buttons screen

Set Temperature Range Limit screen

Set Schedule screen, Prohibit Remote Controller screen

Display Format screen

Setback Button Setting screen, Hold Button Setting screen, Collective Operation Button setting screen

Group Icon Setting screen

Volume control screen

HOME screen (GRID screen, LIST screen, GROUP screen), Status List screen

Touch Panel Cleaning screen

Touch Panel Calibration screen

Names and Functions of Controller Components

Product features

③

① ②

④

⑤

The TC-24A described in this manual is a centralized controller with color LCD touch panel for air

conditioning units, LOSSNAY, and general equipment using the Mitsubishi Electric DIDO controller (PAC-

YG66DCA).

TC-24A can control up to 24 units/24 groups. (*1)

TC-24A controls and monitors the air conditioning units of each group. TC-24A also can control detailed

scheduling and prohibits the local remote controller operation in each room (group), which may lead to

energy savings.

Basic operations are accessed through the TC-24A touch panel. ON/OFF, Hold, and Set back operations

that control air conditioning units collectively are accessed by using buttons next to the touch panel.

TC-24A display screen consists of three types, corresponding to the usage.

HOME screen : Monitoring screen to monitor the operation status of the units

(described in this Instruction Book)

Main Menu screen : Setting screen to set the functions such as schedule settings

(described in this Instruction Book)

Maintenance screen : Initial setting screen to set the basic systems such as group settings

(described in Initial Setting Manual)

* 1 Group: minimum unit to be controlled by TC-24A

A group consists of units (16 units maximum).

Buttons 󰴥 , 󰴦 , and 󰴧 have LED on the top.

TC-24A features a 5"-wide color LCD touch panel. Touch panel displays the operation status

of the units. Function settings such as week 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.

󰴤 Display/Touch panel

The Collective ON/OFF button enables the collective ON/OFF function that allows the user to

turn on/off the air conditioning units, LOSSNAY, and DIDO controllers in all groups collectively.

The LED corresponds to the operation status of controlled units.

Unlit : Indicates that all units are stopped.

Lit : Indicates that one or more units are in operation.

Blink : Indicates that an error is occurring.

󰴥Collective ON/OFF Button *1

The Hold button enables the hold function that allows the user to retain the current operation

status for all selected groups collectively.

While the hold function is enabled, the scheduled operation is suspended, and the local remote

controller operation is also prohibited.

Unlit : Normal operation

Lit : HOLD-on

󰴦HOLD Button *1, *2, *3

The Setback button enables the setback mode for all selected groups collectively. The setback

function automatically switches the system between cooling and heating to maintain the room

temperature within the set temperature range. The wider the set temperature range, the greater

the energy saving.

To keep the setback mode, enable the hold function.

Unlit : Normal operation mode

Lit : Setback mode

󰴧 SET BACK Button *1, *2, *3

The power indicator lights up when the power to TC-24A is turned on.

Unlit : Power OFF

Lit : Power ON

󰴨 Power indicator

Touch panel / Buttons

*1 When the button is pressed while the operation is prohibited, the LED will blink twice.

*2 The hold and setback functions can be enabled only through the HOME screen. *3 The LED lights on and off only when the button ③ / ④ is pressed.

Zoom-out screen

1. How to switch the HOME screen

Touch tubs to change the display format.

2. How to move to the Main Menu screen

Zoom-in screen

: Displays the GRID screen

: Displays the GRID (zoom-out) screen.

: Displays the GRID (zoom-in) screen.

: Displays the LIST screen.

: Displays the GROUP screen.

: Displays the Main Menu screen.

3. How to move to the Maintenance screen

Refer to Initial Setting Manual.

To the GRID screen

To the GROUP screen

To the GRID screen

To the LIST screen

To the HOME screen

To the Main Menu screen

To the GRID (zoom-out) screen

To the GRID (zoom-in) screen

GRID screen

HOME screen

Screen Configuration [HOME screen]

GROUP screen

LIST screen

To the GRID screen

To the GROUP screen

To the GRID screen

To the LIST screen

To the HOME screen

To the Main Menu screen

[Main Menu screen]

To the GROUP screen

To the LIST screen

HOME screen

Buttons [HOME screen]

LOSSNAY

HOME screen

GRID (zoom-out) screen

Displays the operation status of all groups.

GRID (zoom-in) screen

Displays the deta iled operation status o f each group. (10 groups on 3 pages maximum)

LIST screen

Displays the deta iled operation status o f each group with group name. (5 grou ps on 5 p ages maximum)

Note:Display ⑦ and ⑧ vary depending o n t he ope rat ion

mode.Refer to P19 "Operation mode" for details. Sample displays above are for default setting: Operation mode 2.

GROUP screen

Displays the deta iled operation status o f each group. Sets group operations. (When the air conditioning units are controlled)

Operation mode 2

Operation mode 3

Operation mode 1

Air conditioning units SETBACK mode

① ② ③ 󱦯 ④

⑦ ⑧

⑭ ⑮ ⑯

⑬

󱦱

⑥

⑤

⑨

⑤

󱦱

⑨

⑩

⑤

⑫

⑪

⑰

⑱

Note : Depending on the units to be controlled and TC-24A settings, available button operations and displays vary. : While the icon is displayed on the button, the operation is locked.

Flips through pages.

󰴬Page button

Switches the group to be displayed.

󰴮Group button

Displays the GRID screen.

󰴤GRID screen button

Displays the LIST screen.

󰴥LIST screen button

Displays the GROUP screen.

󰴦GROUP screen button

Displays the MAIN MENU screen.

󰴧MAIN MENU screen button

: Displays the zoom-out screen. : Displays the zoom-in screen.

󰴩

GRID (zoom-out/zoom-in) screen button

Selects/Deselects groups collectively. Adds check marks to all selected icons.

󰴪Select All button

Moves to the GROUP screen of the selected group. Moves to the Multiple group selection screen when multiple groups are selected. Refer to P25 "Multiple group selection screen" for details.

󰴫Move-to-the-selected-group button

Shows/Hides the display for the information below.

• Set temperature

• Scheduled operation is enabled.

• Hold function is enabled.

󰴭Display selection button

Switches the operation mode of the air conditioning units and LOSSNAY.

󰴯Mode button

Adjusts the set temperature by using the + and – buttons. Current room temperature appears above the button. Set temperature appears between the + and – buttons.

󰴰Set temperature button

Enables/Disables the hold function for the displayed groups. Icon appears while the hold function is enabled.

󰴱HOLD button

Displays the popup window of Interlocked ventilation (LOSSNAY)/Air direction/Fan speed/ Louver setting screen.

* Refer to P23 "Interlocked ventilation (LOSSNAY)/

Air direction/Fan speed/Louver setting" for the popup window.

󰴲Interlocked ventilation (LOSSNAY)/

Air direction/Fan speed/Louver setting

button

Operation differs depending on the operation mode. Operation mode 1

Turns ON/OFF the units in the group whose Group icon is touched.

Operation mode 2

Switches the Group icon between Selected (checked) and Deselected (unchecked). (Default) Displays the check mark when Group icon is touched.

Operation mode 3

Directly moves to the Group screen of the group whose Group icon is touched.

󰴨

Group icon (operation status display) button

Changes the operation to ON/OFF.

󰴳ON/OFF button

Displays the popup window to adjust the set temperature during the SETBACK mode. Current room temperature appears above the button. Set temperature appears on the button. Refer to P22 "Temperature setting" for details.

󰴴

Set temperature button (SETBACK mode)

Switches LOSSNAY fan speed between Lo and High.

󰴵Fan speed selection button

Displays the current time.

󱦯Current time

Displays the Current page/Total page number.

󱦱Current page/Total pages

Icon Displays [HOME screen]

•Check mark

•ON/OFF operation prohibition

[ON (BG Color: blue)]

[OFF (BG Color: black)] [Error (BG Color: yellow)]

(1) GRID (zoom-out) screen

(2) GRID (zoom-in) screen

(3) LIST screen

•Check mark

Room temperature

Interlocked ventilation (LOSSNAY) operation

[ON (BG Color: blue)]

Schedule/Hold

[OFF (BG Color: black)]

Group No.

[Air conditioning ]

[LOSSNAY group]

LOSSNAY icon

Filter sign:

[ON (BG Color: blue)] [OFF (BG Color: black)]

General equipment icon

[ON (BG Color: blue)] [OFF (BG Color: black)]

[General equipment group]

[Error (BG Color: yellow)] [Air conditioning unit/LOSSNAY/General equipment group]

Error display

Group No.

•Filter sign

•Check mark

Error display Communication error

at startup

Group No.

•Check mark

Error:

Displays when an error occurs.

Startup (communication) error:

Displays as well as the error display when a startup (communication) error occurs.

Filter sign:

Displays when filter needs maintenance.

During scheduled operation:

Displays during scheduled operation.

While hold function is enabled:

Displays while hold function is enabled.

Room temperature:

Display ranges 8-39ºC (46-102ºF). When the

temperature is beyond the range, 8ºC (46ºF) or

39ºC (102ºF) will blink on the display.

When multiple air conditioning units (indoor

units) are registered to a group, current indoor

temperature on the main indoor unit is

displayed.

Interlocked ventilation (LOSSNAY):

Displays when there are ventilation units interlocked with the air conditioning (indoor) units in the group. Icon color indicates the operation status (Blue: ON, Black: OFF).

General equipment icon:

Displays the General equipment type.

Group No. Room (Group) name

[LOSSNAY group]

Group No. Room (Group) name

[General equipment group]

•Check mark

•Mode

•Filter sign:

Schedule/Hold

(3) LIST screen

•Check mark

Display selection button

Group No.

•Check mark

Room (Group) name

[ON (BG Color: blue)]

Room temperature

Set temperature

Schedule/Hold

•Mode

•Filter sign

㧦

[OFF (BG Color: black)]

Room temperature

Interlocked ventilation ON: blue OFF: black

Schedule/Hold

* Interlocked LOSSNAY does not appear during operation.

Room temperature

Interlocked ventilation (LOSSNAY) operation

•Mode

•Filter sign:

[ON (BG Color: blue)] [OFF (BG Color: black)]

Interlocked ventilation (LOSSNAY):

Displays when there are ventilation units interlocked with the air conditioning (indoor) units in the group. Icon color indicates the operation status (Blue: ON, Black: OFF).

General equipment icon:

Displays the General equipment type.

[ON (BG Color: blue)] [OFF (BG Color: black)]

•LOSSNAY icon

•Filter sign㧦

Group No. Room (Group) name

[ON (BG Color: blue)]

Schedule/Hold

•LOSSNAY icon

•Filter sign

㧦

[OFF (BG Color: black)]

Schedule/Hold

•LOSSNAY icon

[LOSSNAY group]

Group No. Room (Group) name

[ON (BG Color: blue)]

Schedule/Hold

[General equipment group]

•General equipment icon

[OFF (BG Color: black)]

Schedule/Hold

•General equipment icon

•Check mark

[ON (BG Color: blue)] [OFF (BG Color: black)]

•General equipment icon

Maximum limit temperature Minimum limit temperature

㧔

SETBACK mode

㧕

Error display

ޣError (BG Color: yellow)ޤ ޣAir conditioning

unit/LOSSNAY/General equipment groupޤ

GROUP screen [Air conditioning unit group]

During operation

[LOSSNAY group]

During operation

[General equipment group]

During operation

SETBACK mode

While the unit is stopped

Group name

Group No.

Mode

Error

Room temperature

Set maximum/minimum

limit temperature

Interlocked ventilation

(LOSSNAY)

Remaining OVERRIDE time

Set temperature

Startup (communication)

error

Filter sign

Scheduled operation

/HOLD

HOLD-ON

HOLD-OFF

Interlocked ventilation (LOSSNAY)

Fan speed Louver

Air direction

Error:

Displays when an error occurs.

Startup (communication) error:

Displays as well as the error display when a startup (communication) error occurs.

Filter sign:

Displays when filter needs maintenance.

During scheduled operation:

Displays during scheduled operation.

While hold function is enabled:

Displays while hold function is enabled.

Room temperature

Display ranges 8-39ºC (46-102ºF). When the room temperature is beyond the range, 8ºC (46ºF) or 39ºC (102ºF) will blink on the display. When multiple air conditioning units (indoor units) are registered to a group, current indoor temperature on the main indoor unit is displayed.

Remaining OVERRIDE time

Displays the remaining time before the setback control resumes to the original set temperature when the maximum/minimum limit temperature is temporarily changed or when the set temperature is changed through the local remote controllers while setback control is executed.

Note : While the icon is displayed on the button, the operation is locked.

Icon Displays [HOME screen] (cont'd)

[LOSSNAY group]

During operation

[General equipment group]

During operation

While the unit is stopped

Fan speed display

General equipment icon

Remaining OVERRIDE time

Interlocked ventilation (LOSSNAY)

Displays the operation status of the ventilation that is interlocked with the air conditioning (indoor) units.

General equipment icon

Displays the General equipment type.

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