FUNCTIONS FOR STOVE CONTROL
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smart Stove - 0142 - 42WMSUGAT2-C
Antifreeze protection
If the temperature at any sensor falls below the set value (AF, factory setting: 3°C, range: 2°C -
10°C), the pumps will be are activated at 100%. In addition, an alarm message will be generated
(buzzer alarm selectable).
The parameters for antifreeze protection can be set in professional mode, see “Protective functions”
on page 63.
Anti-legionella function
To avoid possible affection of legionella at domestic hot water, a cyclic, thermic treatment shall take
place.
The anti-legionella function is only available, if domestic hot water heating is designated by the
selected hydraulic system.
The anti-legionella functions checks if the minimum temperatures for reduction of legionella has
been achieved in the tank due to heating activity within a set interval.
If no sufficient heating has taken place, the water will be heated up to disinfection temperature, spe-
cifically for reduction of legionella.
The installer must set the parameters based on the applicable general directives and local require-
ments. The time of the disinfection cycle can be determined freely.
The parameters for anti-legionella protection can be set in professional mode, see “Basic functions”
on page 55.
Additional heating
A dynamic recharge delay (DRD) postpones the activation of the additional heating. Before the addi-
tional heating is activated, the dynamic recharge delay has to expire.
The dynamic recharge delay is calculated by the minutes*degrees product. The recharging will start
at the calculated temperature point.
The DRD value can be set between 0 and 500 min*K (minutes * degrees Kelvin).
• With DRD = 0, the delay is disabled, additional heating will start immediately.
• Example DRD = 50 min*K: If the tank temperature falls by 10 K (e.g. from 50°C to 40°C), addi-
tional heating will start after 5 minutes (5 min * 10 K = 50 min * K). If the tank temperature falls by
5 K, additional heating will start after 10 minutes (10 min * 5 K = 50 min * K).
• Example DRD = 100 min*K: If the tank temperature falls by 10 K, additional heating will start after
10 minutes (10 min * 10 K = 100 min * K), etc.
With a bar graph inside of the heat-generator symbol, you will be informed about the progress of the
dynamic recharge delay.
During the falling of the tank temperature the following will happen:
• When the tank temperature falls below the set-point for additional heating, the calculation will be
started and the bar graph will start with a fully green coloured circle inside of the tank symbol.
• When the tank temperature reaches the calculated temperature of the dynamic recharge delay,
the symbol inside of the tank will switch to fire or electrical flash and the recharging is started.
The parameters for additional heating can be set in professional mode, see “Basic functions” on
page 55.
