Table of Contents
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CONTENTS
1.
1.1
2.
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.3
2.4
2.5
2.6
3.
3.1
3.2
3.2.1
3.3
3.4
4.
4.1
4.2
4.3
4.4
5.
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
5.3.8
5.3.9
6.
6.1
6.2
7.
8.
9.
10.
11.
4
12.
12.1
Page
12.2
4
12.3
4
13.
4
13.1
Supply voltage
5
13.2
Leakage current
5
13.3
Inputs/output
5
13.4
5
5
14.
5
5
Before beginning installation procedures, these in-
5
stallation and operating instructions should be stud-
6
ied carefully. Furthermore, the enclosed installa-
6
tion and operating instructions for the standard
6
pump should be studied carefully. The installation
6
and operation should also be in accordance with lo-
6
cal regulations and accepted codes of good practice.
6
6
1. General
6
GRUNDFOS E-pumps are pumps fitted with frequency-controlled
7
standard motors for single-phase or three-phase mains connec-
7
tion.
8
The pumps have a built-in PI controller and can be connected to
8
an external sensor enabling control of for instance pressure, dif-
9
ferential pressure, temperature, differential temperature or flow in
9
the system in which the pumps are installed. The pumps can be
9
set to uncontrolled operation, i.e. the pump performance can be
set according to the demand.
9
The pumps are typically used as circulator pumps in large heating
10
or cooling water systems with variable demands.
10
The desired value (setpoint), e.g. the desired differential pressure
10
if a differential pressure sensor has been installed, can be set di-
10
rectly on the pump control panel, via an input for external setpoint
signal or by means of the GRUNDFOS wireless remote control
11
R100.
11
11
All other settings are made by means of the R100.
Important parameters such as actual value of control parameter,
12
power consumption, etc. can be read via the R100.
13
The pump incorporates inputs for external potential-free contacts
13
for start/stop and digital function. The digital function enables ex-
13
ternal setting of max. curve or min. curve.
13
The pump incorporates an output for a potential-free fault, operat-
13
ing or ready signal.
13
13
Furthermore, the pump has an input for bus communication. Via
13
the bus communication input, the pump can be controlled and
13
monitored by a building management system or another external
14
control system.
14
1.1 Twin-head pumps
14
14
Single-phase twin-head pumps do not require any external con-
14
troller.
14
Three-phase twin-head pumps usually require an external con-
15
troller. The GRUNDFOS Delta Control 2000 ME has been devel-
15
oped for this application.
15
For further details about the setting and connection of three-
15
phase twin-head pumps, see installation and operating instruc-
15
tions for the Delta Control 2000 ME.
15
15
2. Installation
16
To ensure cooling of motor and electronics, the following must be
16
observed:
16
•
Place the pump in such a way that sufficient cooling is en-
16
sured.
16
•
The temperature of the cooling air must not exceed 40°C.
17
•
Motor cooling fins and fan blades must be kept clean.
18
When installed outdoors, the motor must be provided with a suit-
18
able cover to avoid condensation on the electronic components,
fig. 1.
19
19
19
19
19
19
19
19
20
20
- Quick Links:
- Technical Data - Single-Phase Pumps
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