eta Fresh water module 33, Руководство по эксплуатации

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Commissioning
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Fig. 7-3: "Constant speed" characteristic curve
Fig. 7-4: "Differential pressure variable (
Δ
p-v)" characteristic
curve
Adjusting the runtime of the circulation pump
After installation, and after all lines have been
connected and vented, the runtime of the circulation
pump must be adjusted. Thus unnecessarily long run
times of the circulation pump can be prevented and the
risk of calcification of the heat exchanger in the fresh
water module is minimized.
You can determine the required running time of
the circulation pump in the following way. Start
the circulation pump in the control system by means of
manual operation in the inputs and outputs menu. After
starting, measure the time until the fresh water module
warms up the return line for the circulation. This time
(e.g. 3 minutes) is required to heat the hot water pipe.
Then enter this time in parameter [Circulation runtime].
During this time measurement, no hot water may be
tapped (e.g. by sink, shower ...), because otherwise an
incorrect time is measured.
Circulation
Circulation runtime