Grundfos UPE 100-120 F, Инструкция по установке и эксплуатации

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English (GB)
14
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
max.
. The setpoint is reduced in relation to
the head set (= 100 %) according to the
characteristics below.
Fig. 12
Temperature influence
In the above example, T
max.
= 80 °C has been
selected. The actual liquid temperature T
actual
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
max.
= 50 °C.
• above 55 °C, select T
max.
= 80 °C.
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
.
Functions of indicator lights
See also section
9. Fault finding
.
TM
01
06
26
17
97
30%
100%
80 50 20
H
H
Q
t [°C]
H
actual
T
actual
100 %
Note
When the R100 remote control
communicates with the pump, the red
indicator light will flash rapidly.
Indicator lights
Description
Fault
(red)
Operation
(green)
Off Off
The power supply
has been switched
off.
Off
Permanently
on
The pump is
operating.
Off Flashing
The pump has been
set to stop.
Permanently
on
Off
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.
Permanently
on
Permanently
on
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.
Permanently
on
Flashing
The pump has been
set to stop, but it has
been stopped due to
a fault.
30 %