where plate radiators are installed) with low thermal inertia, while
the +0/-0.2°C switching sensitivity (the display shows symbol “S:2”
for this setting) is recommended to control heating systems with high
thermal inertia (e.g. underfloor heating).
3.4 Activation of the pump protection function
Underthefactorydefaultsettings,thepumpprotectionfunction
is inactive. It can be activated or switched off by pressing “DAY”,
“PROG” and the large or buttons one after the other, after
going back to the main screen by pressing the “SET” button. Setting
“HP:OFF” (switched-off) or “HP:ON” (activated) is acknowledged
by pressing the “SET” button. (After approximately 10 seconds
settings are automatically acknowledged and the device goes back
to the main screen). By pressing the “RESET” button, the pipe
protection function is reset to factory default setting (“HP:OFF”).
To prevent the pump from sticking, the activated pump
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