Mitsubishi Electric 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

$'$*!.')$!!$,#().%'*)$#(%'$')$#()!!)$#

('+)$!!$,#%'*)$#()$#(*'().

$"#!)*'

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)$#)'$!!' (*')))"#*!(%(($#)$#.*)*'*('(

General precautions

WARNING #)('( $)$'('$*(#*'.

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All electric work must be performed by qualified personnel.

WARNING

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CAUTION

WARNING

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)$#(("$ $''

Precautions during installation

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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

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 *1

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

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

can be controlled from the TC

24A.

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

Date and Time screen

Set Schedule screen, Check Current Settings screen

GROUP screen, Multiple group selection screen, HOLD button

System Changeover screen

Function List (cont'd)

Function Description

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

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

①②

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 ②,③, and ④have 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.

①Display/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.

②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

③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

④SET 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

⑤Power 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 ③/④is 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

(zoom-out) screen

To the GRID

(zoom-in) screen

GRID screen

Screen Configuration [HOME screen]



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