58
Operating instructions 8000015877_00
Overview of the operating
mode
–
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)
–
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
*
Heat pump and
immersion heater
heat the domestic
hot water cylinder
without any time re-
striction.
*) 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
Average
For increased com-
fort
Target temperature
Minimum permiss-
ible in accordance
with the local regu-
lations
55 °C
65 °C
Time programming
Low tariff (LT)
→
ECO
High tariff (HT)
→
Frost protection
Low tariff (LT)
→
Comfort
High tariff (HT) up to
12:00
→
ECO
High tariff (HT) after
12:00
→
Frost pro-
tection
Low tariff (LT)
→
Comfort
High tariff (HT) up to
12:00
→
Comfort
High tariff (HT) after
12:00
→
ECO
Holiday mode
For absences of
more than 24 hours
For absences of
more than 3 days
For absences of
over a week
Boost mode
Never
Occasionally
Often
Settings made by the competent person
Setting/function
Particularly econom-
ical
Average
Particularly expens-
ive
Minimum temperature
No
43 °C
43 °C
MAX. TIME
function
No
6 hours
4 hours
Load relief level for high-
tariff periods (HT)
Invalid (factory set-
ting to 1)
Invalid (factory set-
ting to 1)
Invalid (factory set-
ting to 1)
*) 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.
