AUTO terminal control
Used to enable the automatic control of indoor terminals by bus (TH-Tune / THt).
Used to set the minimum (Tmin) and maximum (Tmax) indoor ambient temperature
values, between which the indoor terminals setpoints will pivot in the different
operating modes.
Note: When this option is activated, the indoor terminals perform automatic setpoint
changes depending on whether or not any of the energy efficiency functions are
activated. When the electrical surplus management or forced consumption functions
(SG4) are activated, the terminals automatically change to the most demanding room
temperature setpoint in accordance with the operating mode (Tmax for heating / Tmin
for cooling). When neither of these functions is activated, the indoor terminals change
automatically to the least demanding setpoint. Once the setpoint has been changed
automatically, it can be modified by directly adjusting each of the indoor terminals. The
new setpoint will remain in effect until such time as the conditions for a new automatic
setpoint change are met.
Note: This configuration is associated with the heating and cooling services. If it is
modified for the heating service, it will automatically change for the cooling service and
vice versa.
External chiller
This is used to enable the auxiliary cooling system in both EMERGENCY and SUPPORT
mode.
Note: In EMERGENCY mode, the auxiliary system is activated automatically when any of
the alarms are active.
In SUPPORT mode, the auxiliary system is activated automatically for normal COOLING
production, as programmed by the technical service.
DHW
This is used to enable the DHW mode and adjust the setpoint temperature and start-up
temperature differential for the DHW storage tank.
Used to adjust the setpoint temperature for DHW reheating with the HTR system
(available depending on the unit options).
The icon indicates that there is a time schedule activated in the DHW mode.
DHW Recirculation
This is used to set up as many as 4-time periods per day for DHW recirculation.
Used to set the setpoint temperature and the start-up temperature differential for DHW
recirculation (available depending on the unit options).
