Product Features - Mitsubishi Electric G-50A Instruction Book

2. Product features

The central controller is capable of controlling up to 50
(*1: The maximum number of connectible units depends on the indoor unit models.)
[1] User operation functions
(1) Operation
1. Most of the functions of the local remote controllers are supported by the central controller.
The central controller can turn on or off the indoor units in specific groups, display the room temperature for
each indoor unit group, change the operation mode of the indoor units (COOL, DRY, FAN, AUTO and HEAT)
and of the ventilation units (HEAT RECOVERY, BY-PASS, AUTO) as well as change the fan speed, air flow
direction (4 directions and swing), ventilation mode (OFF, LOW speed, or HIGH speed), TIMER MODE, and
temperature setting.
(Refer to section "5-7 User setting".)
2. Access to specific functions of the local remote controller, such as ON/OFF operation, mode selection, tempera-
ture setting, and filter sign reset can be prohibited.
3. Group setting
Operation settings can be made for the entire groups or for each individual group.
(2) Weekly Schedule
1. The weekly schedule allows four different patterns of schedule to be set for each group. (P1-P4)
Three of the four patterns (P1, P2, P3) are used to set the ON/OFF schedule, and the other one (P4) is used to
prohibit the operation from the local remote controller. The ON/OFF schedule patterns (P1, P2, P3) can be used in
combination with the operation prohibition function (P4) to set the schedule within the same day. By setting the
schedule for each day of the week by using the four schedule patterns in combination, a weekly setting can be
made for each group.
2. For each day, three ON times and three OFF times, or three prohibition times and three permission times can be
set. It is possible to set only the ON times (prohibition times only) or only the OFF times (permission times only).
3. Easy setting
Daily operation schedule and weekly schedules (P1-P4) of a group can be copied to the settings for other
groups.
(3) Operation status monitoring
1. The ON, OFF, or MALFUNCTION status of each unit or the group can be monitored.
2. Either the group numbers or the first three characters of group names that are controlled by the central controller
can be displayed. The address of all units can be displayed altogether.
3. While all groups are displayed on the screen, the group that is marked with the
OFF.
(4) Malfunction monitoring
1. The unit in error, error code, the address of the unit that detected the unit in error will appear on the "Malfunction
monitor" screen.
2. Pressing the reset key stops all the units in the same group or in the same refrigerant system as the unit in error,
and resets the error.
[2] System configuration setup and maintenance
(1) System configuration setup
1. Indoor units, local remote controllers, and lower-level system remote controllers can be registered in the same
group. OA processing or LOSSNAY units can also be registered.
*1
air conditioner units. It supports the following functions.
– 2 –
symbol can be turned ON or