The temperature differential (hysteresis) is the difference in temperature
required for switching on and off. If for example you set the temperature in
heating mode to 20 °C and differential to 0.2 °C, the thermostat activates
heating as soon as room temperature drops to 19.8 °C and switches
heating off when temperature reaches 20.2 °C.
Heating/Cooling Mode
Move the slider to the OFF position and press H and
time to enter settings. Then press the
Cooling Mode settings.
Use + or – to select heating mode (HEAT) or cooling mode (COOL).
Press
to confirm the settings or wait 15 seconds for automatic
confirmation.
Factory Reset
If the thermostat is not working properly, you can reset it to factory
settings.
Move the slider to the OFF position and press H and
to enter settings. Press the
the display. Press the A button; „----" will appear on the display. Press A
again and the thermostat will reset to factory settings after a few seconds.
Lock Function
Press and hold the H button for 5 seconds; „
and all buttons will be locked. Buttons will not respond to input in this
mode. Holding the H button for 5 seconds again will unlock the buttons.
Display Illumination
Pressing any button activates display illumination for 15 seconds.
Battery Replacement
If a „ " icon appears on the display, it means the batteries are low and
need replacing.
Setting OpenTherm Parameters
Applies only to heating mode.
1. Move the slider to the OFF position and press H and
to enter OpenTherm parameter settings. „01" will light up in the left
corner and the water temperature in the OpenTherm boiler will ap-
pear in the centre (if the thermostat does not receive a temperature
reading, „--" will be displayed instead).
2. Press the
button. „02" will light up in the left corner and the
temperature of the water returning back to the boiler will appear in
the centre (if the thermostat does not receive a temperature reading,
„--" will be displayed instead).
button 2× to go to Heating/
button 3×; the letters „rESE" will appear on
" will appear on the display
12
at the same
at the same time
simultaneously