EUROSTER 2026TXRX
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INSTALLATION AND OPERATION MANUAL
9
The function may be deactivated by turning the knob to any day of the week and then back to
START.
Frost protection mode (switching the thermostat off after the heating season)
In the frost protection mode, the thermostat switches to maximum energy saving. If it is used
with the air conditioning, it switches it off; if it controls the heating, it only maintains the min-
imum temperature to protect the system against freezing (5
°C).
To activate this function, press and hold
button for more than 3 seconds.
The display becomes blank, only the measured temperature, the power symbol, and A-F letters
indicating the anti-freeze mode are displayed. To deactivate this function, press
button for
at least 3 seconds.
Locking thermostat settings
The thermostat features a setting interlock function. The active interlock is indicated by
symbol. In such a case it is not possible to change the settings. However, you can view them.
Locking the thermostat:
1.
Turn the knob to the “SOB” position.
2.
Hold
and
for at least 3 seconds. After 3 seconds, the thermostat is locked, and
symbol appears on the display.
3.
Turn the knob to the “START” position.
Follow the same steps to unlock the thermostat.
Active interlock does not affect the thermostat operation.
CHECKING THE OPERATING TIME
The thermostat features a function to measure the operating time of the controlled device. It is
used to determine a maintenance period or estimate costs.
The maximum counted value is 999:59. Having reached this value reached, the counter stops.
1.
Press
button to display the operating time. The thermostat displays the operating
time and or
symbol, depending on which device is operating.
2.
Press
button (restore normal operation) or follow steps 3 to 5 to reset the counter.
3.
Press and hold the
button for 3 seconds
–
the digits begin to flash.
4.
Press
and the displayed value changes to 000:00 and stops flashing.
5.
The thermostat restores normal operation after 15 seconds or when you press
button.
ANTI-STOP
The thermostat is equipped with the AntiStop function. The controlled device (e.g. pump) is
switched on for at least 1 minute, at least once a week, even if the thermostat is in the frost
protection mode. The operation is independent of the programs and is not configurable.
