Grundfos MAGNA3 25-40 N 180 97924336 [31/1656] English gb
Макгруп McGrp.ru
Задайте вопрос
Зарегистрироваться

Grundfos MAGNA3 25-40 N 180 97924336 [31/1656] English gb

Grundfos MAGNA3 25-40 N 180 97924336 [31/1656] English gb
English (GB)
31
"AUTOADAPT"
The AUTO
ADAPT
control mode continuously adapts the pump
performance according to the actual system characteristic.
Manual setting of the setpoint is not possible.
Fig. 35 AUTO
ADAPT
When the AUTO
ADAPT
control mode has been enabled, the pump
starts with the factory setting, H
fac
is equal to H
set1
,
corresponding to approximately 55 % of its maximum head, and
then adjust its performance to A
1
. See fig. 35.
When the pump registers a lower head on the maximum curve,
A
2
, the AUTO
ADAPT
function automatically selects a
correspondingly lower control curve, H
set2
. If the valves in the
system close, the pump adjusts 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 we do not recommended that you use it
for air-conditioning and cooling systems.
To reset AUTO
ADAPT
, see section "
Return to factory settings
".
"FLOWADAPT"
When you select FLOW
ADAPT
, the pump runs AUTO
ADAPT
and
ensures that the flow never exceeds the entered FLOW
LIMIT
value.
The setting range for the FLOW
LIMIT
is 25 to 90 % of the
maximum flow rate of the pump.
The factory setting of the FLOW
LIMIT
is the flow where the
AUTO
ADAPT
factory setting meets the maximum curve. See fig.
36.
Do not set the FLOW
LIMIT
lower than the dimensioned duty point.
Fig. 36 FLOW
ADAPT
"Prop. press."
The head is reduced at decreasing flow demand and increased at
rising flow demand. See fig. 37.
You can set the setpoint with an accuracy of 0.1 metre. The head
against a closed valve is the setpoint.
Fig. 37 Proportional pressure
"Const. press."
We recommend this control mode if the pump is to deliver a
constant pressure, independently of the flow in the system. See
fig. 38.
Fig. 38 Constant pressure
TM05 2452 1312
A
1
: Original duty point.
A
2
: Lower registered head on the maximum 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.
: See section 8.7 Setting values for control modes.
H
auto_min
: A fixed value of 1.5 m.
TM05 3334 1212
H
Q
H
auto_min
H
fac
A
1
A
3
A
2
H
set1
H
set2
H
Q
Q
max
90 %
Q
max
25 %
H
auto_min
H
fac
Q
fac
Setting range
TM05 2448 1212TM05 2449 0312
H
Q
H
set
H
set
2
H
Q

Содержание

Похожие устройства

Скачать