Appendix
Overview of the operating
mode
*) Exception: The air temperature lies outside the range between -7 °C and +35 °C. In this case,
operation of the back-up heater is permitted.
C End user level – overview
Validity: Vaillant
Setting level
TEMP. SETT. →
TARG ET TARGET WA-
TER TEMP.
T°PV ECO
T°PV MAX
HOLI DAYS →
HOLI.RETUR.
ELEC. MODE (VWL B 290/4) →
ELEC. MODE
BOIL. MODE (VWL BM 290/4) →
BOIL. MODE
BOOST →
BOOST
BA CK UP →
20
– From 23:00
to 11:00: The
product runs in
frost protection
mode (at least
+5 °C)
– From 11:00 to
23:00: The heat
pump heats the
domestic hot
water cylinder
with improved
efficiency *
Values
Unit
Min.
Max.
30 to 65 ℃
℃
℃
TARG ET <
T°PV ECO <
T°PV MAX
℃
T°PV ECO <
65 °C
0
99
Days
Operating instructions aroSTOR 0020290841_00
The heat pump
heats the domestic
hot water cylinder *.
Increment, select, explana-
tion
1
1, if the photovoltaic installa-
tion is connected
1, if the photovoltaic installa-
tion is connected
1
Yes, No
Yes, No
Yes, No
– From 23:00 to
11:00: The heat
pump heats the
domestic hot
water cylinder
*
– From 11:00 to
23:00: The heat
pump heats the
domestic hot
water cylinder
with improved
efficiency. The
immersion heater
can be switched
on as required.
Factory set-
ting
55
60
65
0
No
No
No