Mitsubishi Electric AT-50B Instruction Book page 5

Function
Lock Buttons
Set Temperature
Range Limit
Restriction
Prohibit Remote
Settings
Controller
Operation Mode
Selection Limit
Display Format
Function Key Setting
Basic Settings
HOME screen
Group Icon Setting
Volume Control
Error
Maintenance
Maintenance Sign
Touch Panel
Cleaning mode
Touch Panel
Calibration mode
External input
Miscellaneous
External output
Locks the following buttons: Collective ON/OFF, F1, F2, and Main
Menu screen buttons.
Locks the following functions: ON/OFF, Mode, Set Temperature,
Fan Speed, and Schedule ON/OFF.
Limits the available temperature range for the local remote
controllers (each group or all groups).
Prohibits access to the ON/OFF, Mode, Set Temperature,
Maintenance Sign Reset, Air Direction, and Fan Speed settings
from the local remote controllers, and also deactivates Timer
(Schedule) settings from the local remote controllers (collectively or
by group).
When set as the main controller, operation of the following modes
with the local remote controllers can be prohibited.
No Cooling Operation: Cool, Dry, and Auto cannot be chosen.
No Heating Operation: Heat and Auto cannot be chosen.
No Heating/Cooling: Cool, Dry, Heat, and Auto cannot be chosen.
Selects the display formats for the following items: Display
language, temperature unit, room temperature, display or non-
display of Cool/Heat mode icons (during Auto mode), backlight
timer, and group names.
The F1 button and the F2 button can be set as a run button of
the following collective operation: Setback, Schedule, Mode,
Temperature Correction, Remote Controller Prohibition.
When the group icon is touched, the action differs depending on
the group icon setting. Default is set to the Group icon setting 2.
Group icon setting 1: Turns ON/OFF the units in the group whose
group icon is touched.
Group icon setting 2: 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.
Group icon setting 3: 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 AT-50B 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,
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.
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