29
12.3-
Press the
button once to go back to the
heating programme (fig. 43) or twice to go back to
the cooling programme (fig. 44).
12.4-
Close the cover.
TH450
13 - FROST PROTECTION FUNCTION
Even if proportional-integral operating mode has
been selected, in frost protection mode the tempera-
ture set for heating mode will be maintained but with
differential control only.
13.1-
Open the cover.
13.2-
Press the
button twice and check for
activation of the symbol (fig. 45).
13.3-
Press button .
TH450
Fig. 43
Fig. 44
