Initial Settings - Mitsubishi Electric AT-50A Installation Manual

2-3. Initial Settings

(1) Initial startup settings:
Before turning on the controller, first make sure that the controller, indoor units, and outdoor units have been installed properly according
to the instructions detailed in the respective manuals.
Turn on the controller and the units.
• This manual is intended for the first startup after the unit has been shipped from the factory. If the setting has been changed even
once, the popup window or setting screens explained below may not appear. In this case, see section "Usage-Main Menu Setting" in
the Instruction Book.
• AT-50A can be used as a Main controller or a Sub controller. At the time of factory shipment, AT-50A is set as a Main controller. The
Main/Sub setting can be changed on the Initial Settings 1/ Basic System screen from the Service menu. (Refer to section 2-3(2)-1 for
details.)
• Change the Main/Sub setting BEFORE making other initial settings, otherwise some saved information will be lost upon restart after
the setting is changed.
(a) The Language screen will appear.
1 Select the display language.
2 Touch the button to select the
language of your choice.
3 Touch the OK button.
<When a popup message "Make a setting from Initial Settings
1." appears>
(c) Press the OK button to close the popup window and display the
Service Menu screen.
(d) Touch the Initial Settings 1/ Basic System button to make a
setting. (Refer to section 2-3(2)-1 for details about Basic
controller settings.)
Save the settings, and go back to the Service Menu.
(e) Touch the Initial Settings 2/ Groups button to make a setting.
(Refer to section 2-3(2)-2 for details about Group settings,
2-3(2)-3 for details about Interlocked settings.)
Save the settings, and go back to the Service Menu.
(f) Touch HOME button [
screen.
Press the OK button to begin the communication.
(g) The message (shown above) will appear on the screen,
displaying the initialization progress. When initialization is
complete, the screen will automatically return to the HOME
screen.
(Initialization will take up to five minutes.)
* To change settings later, perform a test run, or verify the
maintenance information.
1 Touch MAIN MENU button [
2 Touch SERVICE MENU button [
screen.
3 Enter the password to log on to the Service Menu screen.
(Refer to section 2-3, 2-4, and 2-5.)
(b) The Date and Time screen will appear.
1 Set the current date on the Date tab, and set the current time on the Time tab,
2 Click on the checkbox next to the date/time format of your choice.
3 Touch the Save button to save the settings.
] to bring up a popup confirmation
] on the HOME screen.
] on the Main Menu
using the ▼ and ▲ buttons to change the values.
<When a popup message "Make a group setting using the
Main controller. When the group setting has been made, reset
the power to the Main controller." appears>
(c) While the popup message is displayed, the unit communicates
with the main controller. The popup window will close when the
communication is completed.
* To change the settings, press the Cancel button while the
popup window is displayed. The Initial Settings 1/ Basic
System screen will appear. If Basic controller settings are not
made yet, change the settings.
(d) The message (shown above) will appear on the screen,
displaying the initialization progress. When initialization is
complete, the screen will automatically return to the HOME
screen.
(Initialization will take up to ten minutes.)
* The group name needs to be set on the Sub controller after
normal startup, as it cannot be sent from the Main controller.
Refer to the Instruction Book for details.
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