Siemens DE 18505 Operating Instructions Manual page 9

Setting a temperature limitation/child protection
This means show the display
Saving energy
Performance indicator
Pre-warmed water
Service
You have the possibility of limiting the temperature to 42 °C.
Switching on the "Symbol key"
I
Press buttons 1 and 2 simultaneously. The "Symbol key" ap-
pears in the display and the temperature is limited to 42 °C.
Switching off the "Symbol key"
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Press buttons 1 and 2 simultaneously. The "Symbol key" dis-
appears in the display and the temperature is now freely selectable.
Mixing in of cold water in the fitting requires unnecessary water and
energy. You should therefore set the desired water temperature di-
rectly on the continuous-flow heater and then open the water tap.
If "eco" lights up in the display it means that the appliance is being
run economically.
The performance indicator shows the currently used performance
of the continuous-flow heater in 10 % increments.
An example: 7 increments are shown while drawing off hot water.
This means that the continuous-flow heater is currently only running
at 70 % of its maximum output.
If the set temperature cannot be reached because the water
throughput is too high, the continuous-flow heater will automatical-
ly adjust the water throughput until the set temperature is achieved.
The continuous-flow heater can be operated with pre-warmed wa-
ter (for example from a solar energy unit). The "Symbol Sun" will ap-
pear in the display if the feed water temperature is above 30 °C.
Please seek to remove a fault according to guidelines given in the
chapter "A fault, what to do?" if "service" lights up in the display.
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