Temperature Influence; Indicator Lights - Grundfos UPED 80-120 FZ Montageanleitung Und Bedienungsanleitung

7.6 Temperature influence

To be set with the R100.
When temperature influence is activated in
proportional- or constant-pressure control mode, the
setpoint for head will be reduced according to the
liquid temperature. It is possible to set temperature
influence to function at liquid temperatures below
80 °C or below 50 °C. These temperature limits are
called T . The setpoint is reduced in relation to
max.
the head set (= 100 %) according to the
characteristics below.
H
100 %
100%
H
actual
30 %
30%
20 50 80
T
actual
Temperature influence
Fig. 12
In the above example, T
max.
selected. The actual liquid temperature T
causes the setpoint for head to be reduced from
100 % to H .
actual
The temperature influence function requires:
• Proportional- or constant-pressure control mode.
• The pump must be installed in the flow pipe.
• System with flow-pipe temperature control, for
example according to outdoor temperature.
Temperature influence is suitable in
• systems with variable flows (for example
two-pipe heating systems) in which the activation
of the temperature influence function will ensure
a further reduction of the pump performance in
periods with small heating demands and
consequently a reduced flow-pipe temperature.
• systems with almost constant flows (for example
one-pipe heating systems and underfloor heating
systems) in which variable heating demands
cannot be registered as changes in the head as
is the case with two-pipe heating systems. In
such systems, the pump performance can only
be adjusted by activating the temperature
influence function.
Selection of T
max.
In systems with a flow-pipe temperature of
• up to and including 55 °C, select T
• above 55 °C, select T
H
t [°C]
Q
= 80 °C has been
actual
= 50 °C.
max.
= 80 °C.
max.

7.7 Indicator lights

The two indicator lights are used for fault and
operating indication.
For position on pump (fig. 14), see section
8.2 Control panel.
When the R100 remote control
Note
communicates with the pump, the red
indicator light will flash rapidly.
Functions of indicator lights
Indicator lights
Fault Operation
(red) (green)
Off Off
Permanently
Off
on
Off Flashing
Permanently
Off
on
Permanently Permanently
on on
Permanently
Flashing
on
See also section 9. Fault finding.
Description
The power supply
has been switched
off.
The pump is
operating.
The pump has been
set to stop.
The pump has
stopped due to a
fault. Restarting will
be attempted.
It may be necessary
to restart the pump
manually by
resetting the fault
indication.
The pump is
operating, but it has
been stopped due to
a fault.
Note: If there is no
differential-pressure
or temperature
sensor signal, the
pump will continue
operating according
to the max. curve.
The pump has been
set to stop, but it has
been stopped due to
a fault.
13