Install Instructions

25
English (US)
13.3.1 AUTO
ADAPT
The AUTO
ADAPT
control mode continuously adapts the pump
performance according to the actual system characteristic.
Fig. 26 AUTO
ADAPT
When the AUTO
ADAPT
control mode has been enabled, the pump
will start with the factory setting, H
fac
= H
set1
, corresponding to
approx. 55 % of its maximum head, and then adjust its
performance to A
1
. See fig. 26.
When the pump registers a lower head on the max. curve, A
2
, the
AUTO
ADAPT
function will automatically select a correspondingly
lower control curve, H
set2
. If the valves in the system close, the
pump will adjust its performance to A
3
.
The AUTO
ADAPT
control mode is a form of proportional-pressure
control where the control curves have a fixed origin, H
auto_min
.
The AUTO
ADAPT
control mode has been developed specifically
for heating systems and is not recommended for air-conditioning
and cooling systems.
To re se t AU TO
ADAPT
, see section 13.9.8 Return to factory
settings.
13.3.2 FLOW
ADAPT
When FLOW
ADAPT
is selected, the pump will run AUTO
ADAPT
and
ensure that the flow never exceeds the entered FLOW
LIMIT
value.
The setting range for the FLOW
LIMIT
is 25 to 90 % of the Q
max
of
the pump.
The factory setting of the FLOW
LIMIT
is the flow where the
AUTO
ADAPT
factory setting meets the max. curve. See fig. 27.
Fig. 27 FLOW
ADAPT
13.3.3 Proportional pressure
The pump head is reduced at decreasing water demand and
increased at rising water demand. See fig. 28.
Fig. 28 Proportional pressure
Note
Note
Manual setting of the setpoint is not possible.
TM05 2452 1312
A
1
: Original duty point.
A
2
: Lower registered head on the max. curve.
A
3
: New duty point after AUTO
ADAPT
control.
H
set1
: Original setpoint setting.
H
set2
: New setpoint after AUTO
ADAPT
control.
H
fac.
: MAGNA3 xx-60: 11.4 ft (3.5 m)
MAGNA3 xx-80: 14.7 ft (4.5 m)
MAGNA3 xx-100: 18 ft (5.5 m)
MAGNA3 xx-120: 21.3 ft (6.5 m)
MAGNA3 xx-150: 26.2 ft (8.0 m)
MAGNA3 xx-180: 31.1 ft (9.5 m).
H
auto_min
: A fixed value of 4.9 ft (1.5 m).
H
Q
H
auto_min
H
fac
A
1
A
3
A
2
H
set1
H
set2
TM05 3334 1212 TM05 2448 1212
H
Q
Q
max
90 %
Q
max
25 %
H
auto_min
H
fac
Q
fac
Setting range
H
Q
H
set
H
set
2