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Mitsubishi Electric AT-50B User Manual

Mitsubishi Electric AT-50B
68 pages
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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 as well as the
Installation 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.
<ORIGINAL>
Air-conditioner Control System
Advanced Touch Controller
MODEL
AT-50B
Instruction Book
Safety Precautions .............................................................. 2
Function List ........................................................................ 4
Names and Functions of Controller Components................ 6
Screen Conguration [HOME screen] ................................. 8
Buttons [HOME screen] ..................................................... 10
Icon Displays [HOME screen]............................................ 12
Basic Operations ............................................................... 16
Screen selection ......................................................................... 16
Group selection .......................................................................... 17
Operation Screen (GROUP screen) ........................................... 18
Operating the Air conditioning unit group • Air To Water (PWFY) group
.... 18
ON/OFF operation ........................................................................ 18
Mode ............................................................................................. 18
Temperature setting ...................................................................... 21
Interlocked ventilation units(LOSSNAY)/Fan speed/Air direction/Louver settings
....... 23
Disable-Scheduled-Operation button ........................................... 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 ..................................................................... 26
Usage - Main Menu Settings ............................................. 28
Operation Setting ....................................................................... 28
Restriction Settings .................................................................... 44
Control Panel .............................................................................. 52
System Management ................................................................. 59
Maintenance ...................................................................... 64
Touch Panel Cleaning screen ..................................................... 64
Troubleshooting ................................................................. 65

Table of Contents

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Mitsubishi Electric AT-50B Specifications

General IconGeneral
BrandMitsubishi Electric
ModelAT-50B
CategoryControl Systems
LanguageEnglish

Summary

Safety Precautions

General precautions

General safety guidelines for operating the controller, including warnings about environment and handling.

Precautions during installation

Safety measures to observe during the installation process of the controller.

Precautions for moving or repairing the controller

Safety guidelines for handling, moving, or repairing the controller unit.

Additional precautions

Further safety instructions regarding tool usage, environmental compatibility, and electrical safety.

Function List

Unit Operation

Details on controlling unit operations like ON/OFF, Mode, Set Temperature, Fan Speed, and Louver.

Time and Schedule

Functions related to setting date, time, schedules, and setback controls for operations.

System Management

Overview of system management functions like status lists and system changeover.

Names and Functions of Controller Components

Product features

Highlights the AT-50B's capabilities as a centralized controller for various Mitsubishi Electric systems.

Touch panel/Buttons

Display/Touch panel

Description of the 5" color LCD touch panel and its interactive features.

Collective ON/OFF button

Functionality of the Collective ON/OFF button for controlling multiple units simultaneously.

Function 1 button (F1), Function 2 button (F2)

Details on assigning and using the F1 and F2 function buttons for quick access.

Screen Configuration [HOME screen]

GRID screen

Explains how to switch between different GRID screen display formats.

Zoom-in screen

Details on accessing the GRID (zoom-in) screen for detailed status views.

LIST screen

Information on navigating to the LIST screen for group status display.

Main Menu screen

Instructions on how to access the Main Menu screen from the HOME screen.

Buttons [HOME screen]

GRID (zoom-out) screen

Displaying the operation status of all groups on the GRID (zoom-out) screen.

GROUP screen

Detailed operation status and settings for selected groups on the GROUP screen.

Basic Operations

Screen selection

How to select and navigate between different operational screens like GRID and LIST.

Group selection

Group icon setting 1, 2, 3

Explains the three different settings for group icons and their operational effects.

Basic Operations

Operation Screen (GROUP screen)

Performing basic operations like ON/OFF and mode selection within the GROUP screen.

ON/OFF operation

How to start or stop indoor units within a displayed group.

Mode

Changing the operation mode (Cool, Dry, Fan, Auto, Heat) for units.

Auto (dual set point) mode

Collective Operation Panel

Performing Collective Operation

Step-by-step guide to performing collective operations like Setback, Schedule, and Mode.

Basic Operations

Temperature setting

Instructions for adjusting temperature settings, including Auto (dual set point) mode.

Set temperature range

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

Multiple group selection screen

Disabling functions

Lock Buttons

How to lock and unlock various buttons and functions on the AT-50B controller.

Operation restrictions

Details on how operations can be restricted by other controllers or system settings.

Menu Screen

Main Menu screen (Top screen)

Overview of the Main Menu screen and its access points.

Operation Setting

Time and Schedule

Setting date, time, schedules, daylight saving, and setback controls.

Collective Operation Setting

Configuration for collective operation settings across multiple groups.

Group Icon Setting

Customizing the behavior of group icons on the HOME screen.

Restriction Settings

Set Temperature Range Limit

Limiting the temperature ranges adjustable via local remote controllers.

Prohibit Remote Controller

Locking or unlocking access to specific settings from remote controllers.

Operation Mode Selection Limit

Limiting available operation modes for groups based on season or other criteria.

Control Panel

Display Format

Basic display settings for HOME and menu screens, including language and units.

Function Key Setting

Assigning functions to the F1 and F2 buttons for quick access.

Volume Control

Adjusting the sound volume and screen brightness levels.

Touch Panel Calibration

Procedure for calibrating the touch panel for accurate input.

System Management

Status List

Viewing error codes and maintenance signs for units.

System-Changeover

Automating changeover between cooling and heating modes based on temperature.

Usage - Main Menu Settings

Operation Setting

Detailed guide for configuring operation settings via the main menu.

Usage - Main Menu Settings

Operation Setting (cont'd)

Setting the operation schedule using weekly or one-day patterns.

Usage - Main Menu Settings

Schedule Setting Procedures

Step-by-step instructions for setting up weekly and one-day schedules.

Usage - Main Menu Settings

Operation Setting (cont'd)

Assigning patterns to groups and days, and configuring event details.

Usage - Main Menu Settings

Copying and pasting the existing settings

Methods for copying and pasting schedule patterns and events.

Usage - Main Menu Settings

Operation Setting (cont'd)

Setting event times and actions, including auto mode and temperature correction.

Usage - Main Menu Settings

Deleting selected settings

Procedure for deleting schedule patterns, events, or group settings.

Usage - Main Menu Settings

Setting the Night Setback function

Configuring the Night Setback function to prevent extreme temperatures.

Usage - Main Menu Settings

Checking the weekly/one-day schedule settings

How to view current weekly and one-day schedule settings for groups.

Usage - Main Menu Settings

Usage - Main Menu Settings

To select the groups on which to execute the collective operation (Mode)

Selecting groups for collective operation mode changes.

Usage - Main Menu Settings

To make group icon settings

Configuring group icon settings to change HOME screen interaction.

Usage - Main Menu Settings

Setting the unlock password

Usage - Main Menu Settings

Usage - Main Menu Settings

Locking or unlocking access to the setting items in the table below from the local and other system controllers

Controlling access to settings like ON/OFF, Mode, and Temperature via remote controllers.

Usage - Main Menu Settings

Operation Mode Selection Limit (season changing)

Limiting operation modes for groups based on seasonal requirements.

Usage - Main Menu Settings

Setting the basic display settings on the HOME and menu screens

Customizing display format, language, temperature units, and room temperature visibility.

Usage - Main Menu Settings

To set the backlight timeout time

Configuring the duration before the backlight automatically turns off.

Usage - Main Menu Settings

To change the group name

Procedure for renaming groups displayed on the controller.

Character input screen

Usage - Main Menu Settings

Usage - Main Menu Settings

Adjusting the volume and brightness

How to adjust sound volume and screen brightness levels.

Usage - Main Menu Settings

Calibrating the touch panel

Step-by-step guide for touch panel calibration.

System Management

Checking or resetting the Error or the Maintenance Sign

How to check and reset errors and maintenance signs from the status list.

Usage - Main Menu Settings

System Management (cont'd)

Managing maintenance signs, including filter cleaning reminders.

Usage - Main Menu Settings

Using the System-Changeover function

Automating cooling/heating mode changes based on temperature and group demands.

Maintenance

Touch Panel Cleaning screen

Instructions for safely cleaning the touch panel screen.

Troubleshooting

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