Brochure

Functions
MAGNA1
8
13
Control modes
Fig. 7 Selection of pump setting for system type
Factory setting: Intermediate proportional-pressure
curve, referred to as PP2.
Proportional pressure curve (PP1, PP2 or
PP3)
Proportional pressure control adjusts the pump
performance to the actual heat demand in the system,
but the pump performance follows the selected
performance curve, PP1, PP2 or PP3. See fig. 8 where
PP2 has been selected.
See Selection of control mode on page 12 for further
information.
Fig. 8 Three proportional pressure curves/settings
The selection of the right proportional pressure setting
depends on the characteristics of the heating system
in question and the actual heat demand.
Constant pressure curve (CP1, CP2 or
CP3)
Constant pressure control adjusts the pump
performance to the actual heat demand in the system,
but the pump performance follows the selected
performance curve, CP1, CP2 or CP3. See fig. 9
where CP1 has been selected.
See Selection of control mode on page 12 for further
information.
Fig. 9 Three constant pressure curves/settings
The selection of the right constant pressure setting
depends on the characteristics of the heating system
in question and the actual heat demand.
Constant curve/constant speed (I, II or III)
In constant curve/constant speed operation, the pump
will run at a constant speed, independent of the actual
flow demand in the system. The pump performance
follows the selected performance curve, I, II or III.
See fig. 10 where II has been selected.
See Selection of control mode on page 12 for further
information.
Fig. 10 Three constant curve/constant speed settings
The selection of the right constant curve/ constant
speed setting depends on the characteristics of the
heating system in question.
TM05 5554 3812TM05 5555 3812
Q
H
PP3
PP2
PP1
Q
H
TM05 5556 3812TM05 5557 3812
Q
H
CP3
CP2
CP1
Q
H