7.2
Setting the hot water temperature
The water temperature is infinitely variable and is
adjusted using the rotary temperature selector.
Fig. 7.3 Temperature selector on the undercounter unit
E
E
E
E
Fig. 7.4 Temperature selector on the overcounter unit
Operating instructions for electric domestic hot water cylinders VEN 5/6 U and O (plus) 0020129648_01
E
1
E
2
E
3
E
4
1
2
3
4
1
"Frost protection" position
The water is prevented from freezing (with the
electric domestic hot water cylinder connected to
the power).
2
"Warm water" position
In the interests of hygiene, this position should be
selected only if specifically required (water approxi-
mately 40 °C).
3
Economy position "E"
Recommended position with detent, for normal
warm water requirements (water approximately
60 °C).
4
"Hot water" position
This position should be selected only in special
cases and as briefly as possible (water approxi-
mately 85 °C).
> Turn the temperature selector to the required
position.
We recommend setting a water temperature of 60 °C
(economy mode "E") for economic and hygienic reasons
(e.g. Legionella). In this mode, operation of the electric
domestic hot water cylinder is particularly cost-effective
(in the context of energy efficiency legislation) and
limescale formation is kept low. For this reason, the tem-
perature selected with economy mode "E" should be
exceeded only in special cases and as briefly as possible,
particularly in areas of extremely hard water.
Limiting the temperature selection range
Your heating engineer can limit how far the temperature
selector can turn so that the temperature for economy
mode "E" (approximately 60 °C) or "warm water"
(approximately 40 °C) cannot be exceeded.
This temperature limitation is particularly recommended
if young children live in the household, for example.
> Consult your heating engineer.
i
The electric domestic hot water cylinder
switches on automatically if the water tem-
perature falls below the temperature selected
at the temperature selector. The electric
domestic hot water cylinder switches off auto-
matically as soon as the water reaches the
temperature selected at the temperature
selector.
Operation 7
INT
17
EN