Vaillant aroSTOR VWL B 270/5 Instrucciones De Funcionamiento página 58

Overview of the operating
mode
*) Exception: The air temperature lies outside the range between -7 °C and +45 °C. In this case,
operation of the back-up heater is permitted.
B.2 Using a low tariff without a control cable connection
Settings made by the end user
Setting/function
Target temperature
Time programming
Holiday mode
Boost mode
Settings made by the competent person
Setting/function
Minimum temperature
MAX. TIME function
Load relief level for high-
tariff periods (HT)
*) Exception: The air temperature lies outside the range between -7 °C and +45 °C. In this case,
operation of the back-up heater is permitted.
58
– LT: Heat pump
and immersion
heater (where
applicable) heat
the domestic hot
water cylinder
– HT: The product
runs in frost pro-
tection mode (at
least +5 °C)
Minimum permiss-
ible in accordance
with the local regu-
lations
Low tariff (LT) →
ECO
High tariff (HT) →
Frost protection
For absences of
more than 24 hours
Never
Particularly econom-
ical
No
No
Invalid (factory set-
ting to 1)
– LT: Heat pump
and immersion
heater (where
applicable) heat
the domestic hot
water cylinder
– HT: Only the heat
pump heats the
domestic hot
water cylinder
*
Average
55 °C
Low tariff (LT) →
Comfort
High tariff (HT) up to
12:00 → ECO
High tariff (HT) after
12:00 → Frost pro-
tection
For absences of
more than 3 days
Occasionally
Average
43 °C
6 hours
Invalid (factory set-
ting to 1)
Operating instructions 8000015877_00
Heat pump and
immersion heater
heat the domestic
hot water cylinder
without any time re-
striction.
For increased com-
fort
65 °C
Low tariff (LT) →
Comfort
High tariff (HT) up to
12:00 → Comfort
High tariff (HT) after
12:00 → ECO
For absences of
over a week
Often
Particularly expens-
ive
43 °C
4 hours
Invalid (factory set-
ting to 1)