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3. BASIC SETTINGS
After the appliance is connected, the measured temperature is shown on the display when the appli
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ance is switched on. You can change the default settings as written below.
3.1. Change the mode of control (F1/F2/F3)
The device can be used in three modes, which are detailed as follows:
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F1 (factory default) - Control of a heating system’s circulating pump:
the output is turned on
if the measured temperature is higher than the set temperature. The switching sensitivity is taken into
account when switching.
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F2 - Control of a cooling system’s circulating pump:
the output is turned on
if the measured temperature is lower than the set temperature. The switching sensitivity is taken into
account when switching.
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F3 - Manual mode:
regardless of the measured temperature, the output is permanently switched
on/off according to the setting.
To switch between modes, press and hold the button for 4 seconds. The currently selected F1, F2,
or F3 value is displayed.