Protecting The Heating Installation Against Frost - Vaillant ecoTEC plus Operating Instructions Manual

3 Product description
4 Current assign-
ment of the left-
hand selection
button
5 Active operating
mode
Sym- Meaning
bol
Burner operating
correctly
Current filling
bar
pressure of the
heating installa-
tion
The dashed lines
show the permit-
ted range.
Domestic hot wa-
ter generation
active
Heating mode
active
Maintenance re-
quired
Summer mode
active
Heating mode is
switched off
Burner anti-cyc-
ling time is active
10
6 Burner informa-
tion
Explanation
Burner on
– Permanently
on: Filling
pressure in
the permitted
range
– Flashing:
Filling pres-
sure outside
the permitted
range
– Permanently
on: Draw-off
mode before
burner is on
– Flashing:
Burner on in
draw-off mode
– Permanently
on: Heat de-
mand in heat-
ing mode
– Flashing:
Burner on in
heating mode
Information on
the maintenance
message in the
"Live Monitor"
To avoid the
need for frequent
switching on and
off (increases the
product's service
life).
Operating instructions ecoTEC plus 0020261390_01
Sym- Meaning
bol
Fault in the
product
F.XX
3.4 Protecting the heating
installation against frost
3.4.1 Frost protection function
Caution.
Risk of material damage due
to frost.
The frost protection function
cannot guarantee circulation
through the entire heating in-
stallation. Under certain circum-
stances, there is therefore a risk
of frost to certain parts of the
heating installation, which may
cause damage.
▶
During a period of frost, en-
sure that the heating installa-
tion remains in operation and
that all rooms are sufficiently
heated, even when you are
away.
Note
To ensure that the frost protection
devices remain ready for operation,
the boiler must be switched on.
If the heating flow temperature falls below
5 °C when the on/off button is switched
on, the product starts up and heats the
circulating water on the heating side to
approx. 30 °C.
Explanation
Appears instead
of the basic
display, may be
an explanatory
plain text display.