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3.4. Frost protection function
ATTENTION!
The use of the frost protection function is only recommended if there is a heating circuit
in the heating system in which the pump to be controlled is installed, even during the heating-free
period, in which the heating medium can flow freely at all times. Otherwise, using the frost protection
function may damage the pump.
The frost protection function of the pump controller, when switched ON, switches on the pump when
the measured temperature drops below 5 °C and leaves it ON until the measured temperature reach
-
es 5 °C again to protect the pump and the heating system. During this time, the display alternates
between „
”
and the measured temperature. When the frost protection function is activated, it op
-
erates in all three modes (F1, F2 and F3).
To switch the frost protection function ON/OFF, first switch off the appliance by pressing the button
once (it switches OFF the display), then press and hold the button for 3 seconds.
„
FPOF
”
(factory
default setting) will appear on the display, indicating that the function is deactivated. Press
or
to change between ON/OFF states. The ON status of the function is indicated by
„
”. To save the
setting and exit the function setting, wait approx. 7 seconds. The device is then switched OFF.