Grundfos TPE2 - Page 44

17.6.1 AUTOADAPT
Pump variant AUTOADAPT
TPE3, TPE3 D ●
TPE2, TPE2 D -
The AUTOADAPT control mode continuously adapts
the pump performance according to the actual system
characteristic.
Manual setting of the setpoint is not possible.
H
Q
H
auto_min
H
fac
A
1
A
3
A
2
H
set1
H
set2
TM057910
AUTOADAPT
When the AUTOADAPT control mode has been
enabled, the pump will start with the factory setting,
H
fac
is equal to H
set1
, and then adjust its performance
to A
1
. See the figure AUTOADAPT.
When the pump registers a lower head on the
maximum curve, A
2
, the AUTOADAPT function
automatically selects a correspondingly lower control
curve, H
set2
. If the valves in the system close, the
pump will adjust its performance to A
3
.
A
1
:
Original duty point.
A
2
:
Lower registered head on the maximum
curve.
A
3
:
New duty point after AUTOADAPT
control.
H
set1
:
Original setpoint setting.
H
set2
:
New setpoint after AUTOADAPT control.
H
fac.
:
Factory setting.
H
auto_min
:
A fixed value of 1.5 m.
The AUTOADAPT control mode is a form of
proportional-pressure control where the control
curves have a fixed origin, H
auto_min
.
The
AUTOADAPT control mode is developed
specifically for heating systems and we do not
recommend that you use it for air-conditioning and
cooling systems.
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English (GB)