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Inhaltsverzeichnis; General Description - Grundfos MAGNA UPE 2000 Series Montage- Und Betriebsanleitung

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Inhaltsverzeichnis

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  • DEUTSCH, seite 25
CONTENTS
1.
1.1
2.
2.1
3.
3.1
3.2
Twin-head pumps
3.3
3.4
4.
4.1
4.2
5.
5.1
6.
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7.
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8.
9.
10.
11.
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The in-
stallation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.

1. General description

The GRUNDFOS MAGNA UPE Series 2000 is a
complete range of circulator pumps with integrated
differential pressure control enabling adjustment of
pump performance to the actual system require-
ments. In many systems, this will mean a considera-
ble reduction in power consumption, prevent noise
from thermostatic valves and similar fittings, and im-
prove the control of the system.
The desired head can be set on the pump control
panel.
4
The following functions can be set by means of the
pump control panel, see fig. 20, page 16:
Page
• AUTO (factory setting).
4
During operation, the pump can automatically re-
5
duce the factory-set setpoint and adjust it to the
5
actual system characteristic. This setting ensures
5
minimum energy consumption and will be the opti-
mum setting in most installations.
5
5
• Proportional-pressure control.
5
The head is changed continuously in accordance
6
with the flow demand in the system. The desired
6
setpoint can be set on the pump control panel.
6
• Constant-pressure control.
6
A constant head is maintained, irrespective of flow
7
demand. The desired setpoint can be set on the
pump control panel.
8
8
• Automatic night-time duty.
The pump changes automatically between normal
8
duty and night-time duty on the basis of the flow-
8
pipe temperature. The control modes mentioned
9
above and constant-curve duty can be combined
9
with automatic night-time duty.
10
10
The R100 remote control, the connection to an exter-
10
nal fault signal transmitter or the application of the
11
digital input offer further functions:
11
• Constant-curve duty.
11
The pump runs at a constant speed on or between
11
the max. and min. curves (to be selected with the
14
R100).
15
• Temperature influence.
15
The head varies depending on the liquid tempera-
15
ture (to be selected with the R100).
16
• External start/stop.
17
The pump can be started or stopped via the digital
18
input.
19
• External fault signal.
19
The pump controls an external fault signal trans-
20
mitter via a potential-free output.
21
Additional functions can be obtained by fitting an
22
expansion module to the pump:
23
GENI module:
24
• External analog control of head or speed from
24
an external 0-10 V signal transmitter.
• External forced control via inputs for:
- Max. curve,
- Min. curve.
• Bus communication via GENIbus.
The pump can be controlled and monitored by a
GRUNDFOS Pump Management System 2000, a
building management system or another type of
external control system.
• Control of twin-head pumps.
The control of twin-head pumps is described in
sections 1.1 and 6.11.4.
LON module:
• Bus communication via LON.
This module enables connection to a network
based on LonWorks
units which are based on this communication
standard.
technology and to other

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