The header shows the current buffer program.
Time program
During the saved charging times
(1), the buffer contents are heated up to the maximum tem-
perature (2) if the minimum temperature (2) was undershot.
Tip: This program is primarily suited for buffers that in addition are heated via solar power.
The factory setting is set to 00:00–23:59 Hours.
Temperature
The charging is exclusively controlled by temperature:
• Buffer is heated up if
∙ the buffer temperature is lower than the highest requested temperature from the heat-
ing circuits or
∙ if the minimum temperature on the upper sensor ("actual temperature 1") was under-
shot.
• The heating up occurs until the set maximum is reached on the lower sensor ("Actual tem-
perature 2").
• The minimum temperature is always maintained even if there is no heat request from the
consumers.
Off
The automatic buffer charge function is switched off. However, if a consumer places a request,
the boiler heats up the buffer until the upper sensor lies at the target temperature of the con-
sumer. However, the buffer is not charged through, i.e. the lower target temperature remains
disregarded.
Manual mode
The buffer tank is always kept at the maximum temperature.
Attention: Switch-off is NOT executed automatically!
The set minimum (2) is always maintained even if there is NO heat request from the consum-
ers.
(1) Main menu >> Buffer >> Buffer No. >> Charging times [► 29]
(2) Main menu >> Buffer >> Buffer No. >> Buffer temperature [► 30]
Charging times
Main menu >> Boiler >> Boiler No. >> Buffer program
Menus used
6.7.2
The commands of the KWB Comfort 3 control
6
Buffer
B KWB Easyfire EN, 05.2011
29
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