Configuration parameter [Buffer] function block
Explanation of [Desired charging time]
This parameter defines the time required by the boilers
to charge the buffer to the required target temperature
[Buffer target].
In cascade systems (several boilers charge one
buffer), adjusting this parameter may be helpful
for faster buffer charging. Shortening this time causes
other boilers to fire up sooner to help charge the buffer.
Lengthening the time would extend the running time of
an individual boiler.
Explanation of [Return from consumers]
This temperature is the mean return temperature of all
consumers connected to the buffer. For example:
heating circuits, hot water tanks, external heat
consumers fresh, water modules...
This temperature forms the basis for calculating the
buffer charging status.
Explanation of the [Extra charge] function
This function defines a daily point in time for the buffer
(=[Extra charging from]) to charge the buffer addition-
ally. This charging is done independently of the actual
consumer requirements and independently of the set
time windows.
A separate minimum temperature [Buffer top min.] and
shutdown temperature [Buffer bottom off] can be set
for this charge. Charging ends as soon as the buffer
reaches these temperatures.
The function is deactivated if one of the two tem-
peratures is set to "0".
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