2.4
Thermostats
2.4.1
Overview
Iddero Verso implements two independent thermostats for ambient temperature regulation,
and thus can be used to control two independent HVAC zones. Each thermostat can be config-
ured for heating, cooling, or both heating and cooling. The thermostat continuously compares
the current room temperature with the current temperature setpoint, and controls operation
of the heating and/or cooling actuators using a variety of control methods.
2.4.2
Room temperature
Current room temperature can be obtained from several sources:
• Temperature measured by the internal (built-in) temperature sensor
• Temperature measured by an external temperature probe connected to one of the four
available multifunction inputs
• Temperature provided by an external KNX device
For each thermostat, two different temperature sources can be selected and their temperature
values averaged in order to calculate the actual room temperature. By combining the measure-
ments from two different sources, it is possible to effectively filter local perturbations, e.g. from
heat sources or air streams close to the sensors.
2.4.3
Setpoints
2.4.3.1
Operating Modes
The thermostat has four different operating modes: Comfort, Standby, Economy, and Building
Protection.
•
Comfort mode
: The temperature setpoint is set to a value which enables normal use of
the room at a pleasant temperature.
•
Standby mode
: The temperature setpoint is temporarily relaxed (i.e. the setpoint will be
lowered if in Heating mode, or increased if in Cooling mode), for example during short
absences. This helps reducing energy consumption, but at the same time allows for
quickly returning to the comfort mode at any time.
2.4
Thermostats
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