51
Operation
(Reference)
System Settings
Menu Item
Description
FC Change
Over
[3] Control Group
Register units in the zone as a control group, and
FC Change Over
provides the
individual control for the zone.
• Control group
- Each control group is independently controlled.
- Register all indoor units and ventilation equipment that is covered by a certain
zone into the group.
- Set the preset cooling setpoint and preset heating setpoint. You can enable and
disable the control group.
- Assign one indoor unit among those registered indoor units as the representative
indoor unit for that group. The return air temperature of the representative
indoor unit is used for FC Change Over as the room temperature in the
zone. If the representative indoor unit utilizes a remote temperature sensor,
the temperature at the sensor location is the reference temperature value.
• Configuring a comfortable temperature range for the control group
- Preset the cooling setpoint (maximum temperature) and heating setpoint (minimum
temperature) to conduct the Changeover . Determine the preset cooling and heating
temperatures anywhere between 18
°
C and 30
°
C. The preset cooling setpoint should
be 2
°
C higher than the preset heating setpoint.
See page
84
88
to
Outdoor
unit
Representative
indoor unit
indoor
unit
indoor
unit
Control group
HRV unit
D
#
Dio
Damper, etc.