Basic Documentation

Functions
Operating modes
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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 [➙ 17]). Specific heating and cooling
setpoints are assigned to each operating mode.
The following operating modes are available:
Operating mode
Icon
Description
Auto Timer
In Auto Timer mode, the thermostat automatically changes from
Comfort to Economy as per 8 preprogrammed timers. Auto Timer
mode symbol along with related operation mode symbol
(Comfort or Economy) displays on the screen.
The thermostat automatically selects the fan speed based on
setpoint and actual room temperature. And automatic fan is the
default fan speed in Auto Timer mode.
Comfort
In Comfort, the thermostat maintains the Comfort setpoint. This
setpoint can be defined via P08, P09 and P10.
Also, it can be adjusted via the +/- buttons.
The fan can be set to automatic or manual fan speed: Low,
medium or high.
The thermostat switches to Comfort when:
● The presence detector 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 2 or 4),
● Hotel keycard is removed or presence detector is inactive.
The contact can be connected to multifunctional input X1 or
X2. Set P38 or P40 to 10 or 11 (P02 is irrelevant)
*)
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)
The thermostat switches to Protection when:
● The operating mode button is pressed
● The window contact is active (open window)
*)
Hotel keycard, presence detector or window contact: Use only one input source,
either input X1 or X2. User operations are ineffective if hotel keycard is removed,
presence detector is inactive or window contact is active (window is open).
Note