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Commissioning and adjustment
Setting parameters
2D Pump module kick function
Display
15 s
Disabled
... s
Adjusting an individual circulation pump curve
Parameter "00" sets a curve for the circulation pump.
The associated diagram shows the circulation pump
speed, which comes from the ratio of control voltage to
the resulting flow rate. Technical constraints mean that
a speed-controlled circulation pump can increase the
flow rate within a fixed control range only. A constant
increase over the entire 0 to 10 V control voltage range
is not possible. The curve is therefore dependent on
the circulation pump type and usually non-linear.
The circulation pump control range and associated
control voltage and flow rate value pairs can be deter-
mined using a relay test: See next chapter.
32
(cont.)
Value
2D:15
2D:0
2D:10
to
2D:100
Explanations
So that the circulation pump does not seize up, it is
switched on automatically for 15 s after a shutdown
time of 24 h.
No automatic interval control
Note
If the circulation pump is out of operation for a longer
period of time, it can seize up.
So that the circulation pump does not seize up, it is
switched on automatically for the duration set here af-
ter a shutdown time of 24 h.
Setting range: 10 to 100 s
The value pairs determined provide the necessary set-
ting values to adapt the curve individually to the exist-
ing circulation pump type.
The configuration can be made either via parameters
"20" to "26" or alternatively in the "Individual pump
type" menu (see chapter "Configuring an individual
circulation pump curve").
The min. and max. flow rates permissible for operation
are set in parameters "29" and "2A".
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