System-Changeover - Mitsubishi Electric EB-50GU-A Instruction Book

6-3. System-changeover

The System-changeover function switches the operation modes of the indoor units connected to the same
outdoor unit between cooling and heating based on the room temperature and the set temperature. Click
[Functions 2] in the menu bar, and then click [System-changeover] to access the System-changeover settings
screen.
The System-changeover function is available only on the Y series of outdoor units, whose operation modes
do not include the Auto mode. Use this function to operate the air conditioning units in the heating mode in the
morning and in the cooling mode in the afternoon. The operation mode of all indoor units will automatically be
switched, eliminating the need to switch the operation mode manually from the remote controllers.
Note: Because the operation mode is selected based on the demands of the representative group or of the majority of
the groups, not all areas may be air conditioned to the optimum temperature.
Note: The System-changeover settings may not be accessible if logged in as a building manager.
Note: If the outdoor unit is an R2 series, whose operation modes include the Auto mode, use the Auto mode instead of
the System-changeover function to switch the operation mode automatically.
Target outdoor unit
The M-NET address of the
outdoor unit appears.
Change Mode
Refresh
Click to import the settings
from EB-50.
(1) Select the Change Mode [None], [Averaging], or [Representative Group], referring to the table below.
If [Representative Group] is selected, also select a representative group from among the groups on the
right.
Change Mode
None
Averaging
Representative Group
(2) Click [Save Settings] to send the settings to the EB-50.
Table 6-1 Change Mode
System-changeover function will not be used.
The operation mode (cooling or heating) will be switched based on the demands of
the majority of all groups connected to the outdoor unit, taking into consideration
the capacity of each indoor unit and the temperature differences between the set
temperatures and room temperatures.
The operation mode (cooling or heating) will be switched based on the temperature
difference between the set temperature and the room temperature of the
representative group.
Content
45
Groups
The names of the groups
that are connected to the
outdoor unit appear.
When the [Representative
Group] mode is selected,
select the representative
group from among these
groups.
Save Settings
Click to send the settings to
EB-50.