Vaillant VRC 630, Operating Manual

Page: 46 / 152

9 Energy saving tips
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Operating manual VRC 630 0020095108_00
How to make positive energy savings:
Activate the energy-saving function when airing the
room or during temporary absences.
b
Caution!
Material damage caused by freezing!
Parts of the heating installation can freeze if
the frost protection is delayed for too long.
Setting the frost protection delay is a job
for the expert technician!
Programme your holiday periods to avoid unneces-
sary heating during extended absences.
Set the cylinder target temperature (for hot water) to
the lowest value necessary just to cover your heat
demand.
If possible, set the Eco mode for all heating circuits
and have the frost protection delay time adjusted by
your heating engineer.
The heating is completely switched off overnight in
the Eco mode. If the outside temperature falls below
+3 °C, the night set back temperature is invoked
again after the presettable frost protection delay
time.
The frost protection delay time can be extended for
houses with good thermal insulation.
Use the special one-time cylinder charging mode
The DHW cylinder can be heated once outside the time
window by using the special
One-time cylinder
charging mode. Thus hot water is quickly available on
demand, even outside the time window.
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