Installation manual

11Operating Manual for VRC 400 weather compensator
Operation 4
Symbol Meaning
Heating
Meaning
Hot water/circulation pump
ECO:
According to the setted timer programmes, the
heating circuit switches between heating mode
and OFF. The heating circuit is switched off in set-
back mode, provided the anti-frost function (activat-
ed when the outside temperature is below 3 °C) is
not active. The heating circuit symbol is displayed if
a heating requirement is detected or the anti-frost
function is active.
See the table on the left
Off:
The heating circuit is off, provided that the frost
protection function (if the outside temperature is
below 3 °C) is not activated. If the frost protection
function is activated, the heating circuit symbol is
displayed.
The boiler is not heated up, regard-
less of the set timer programme. The
circulation pump is switched off.
The hot water and circulation pump
symbols are not displayed.
Table 4.1 Operating modes