Basic Documentation

Functions
Operating modes
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A6V12114068_en--_c
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4.2 Operating modes
The thermostat operating mode can be influenced in different ways (see Different
ways to influence the operating mode [➙ 18]), e.g. operating mode button, window
contact, Modbus, etc. Specific heating and cooling setpoints are assigned to each
operating mode.
The operating mode can be selected via Modbus.
● If a bus command is received via Modbus for either Comfort or Economy, the
symbol of the selected operating mode is displayed.
i.e. either Comfort ( ) or Economy ( ) symbol only.
The thermostat returns the effective room operating mode on Modbus.
The following operating modes are available:
Operating
mode
Icon
Description
Comfort
In Comfort, the thermostat maintains the Comfort setpoint. This
setpoint can be defined via P08, P09 and P10.
Also, it can be locally adjusted via the +/- buttons or remotely via
Modbus.
The thermostat switches to Comfort when:
● The presence detector (local or via Modbus) is active (room is
occupied)
*)
Economy
A preset setpoint in Economy can be defined via P11 and P12.
The thermostat switches to Economy when:
● The operating mode button is pressed (only possible if P02 is set to
4),
● Economy is sent via Modbus,
● Hotel keycard is removed or presence detector is inactive.
The contact can be connected to multifunctional input S1/X1/X2.
Set P38/P40 to 10 or 11 (P02 is irrelevant)
*)
Window contact
Protection
In Protection, the system is:
● Protected against frost (factory setting: 8 °C, configurable via P65)
● Protected against overheating (factory setting: OFF, configurable
via P66)
No other operating mode can be selected locally if Protection is
commanded via Modbus. is displayed.
The thermostat switches to Protection when:
● The operating mode button is pressed
● Protection is sent via Modbus
● The window contact is active (open window)
● "Window contact" is sent to thermostat via Modbus.
*)
*)
Hotel keycard, presence detector or window contact: Use only one input source,
either local input S1/X1/X2 or Modbus. User operations are ineffective if hotel
keycard is removed, presence detector is inactive or window contact is active
(window is open), or if "Window contact" is sent via Modbus.
Room operating mode:
Preselection
Room operating mode:
State
Note