General Information; Introduction; Applications; Safety - Grundfos DMX 221 Manual De Instrucciones

English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
1. General information
1.1 Introduction
1.2 Applications
2. Safety
2.1 Identification of safety instructions in this manual
2.2 Qualification and training of personnel
2.3 Risks when safety instructions are not observed
2.4 Safety-conscious working
2.5 Safety instructions for the operator/user
2.6 Safety instructions for maintenance, inspection and
installation work
2.7 Unauthorised modification and manufacture of spare
parts
2.8 Improper operating methods
2.9 Safety of the system in the event of a failure in the
dosing system
3. Technical data
3.1 Identification
3.2 Type key
3.3 Pump performance
3.4 Suction heights
3.5 Ambient and operating conditions
3.6 Dosing medium
3.7 Electrical data
3.8 AR control unit
3.9 Materials
3.10 Weights
3.11 Dimensional sketches
4. Transport and storage
4.1 Delivery
4.2 Intermediate storage
4.3 Unpacking
4.4 Return
5. Installation
5.1 Optimum installation
5.2 Installation tips
5.3 Mounting
5.4 Hose / pipe lines
5.5 Connecting the suction and discharge lines
6. Electrical connections
6.1 Versions with mains plug
6.2 Versions without mains plug
7. Commissioning
7.1 Checks before start-up
7.2 Start-up
8. Operation
8.1 Description of the pump
8.2 Switching on/off
8.3 Adjusting the dosing flow via the stroke length
8.4 Stroke-length adjustment
8.5 Adjustment of stroke rate using a frequency converter 17
8.6 Using the AR control unit
9. Operation with other electronics
9.1 Electronics version stroke sensor
9.2 Electronic diaphragm leakage sensor
10. Integral relief valve
10.1 Function
10.2 Permissible media
10.3 Connections
10.4 Setting of opening pressure
10.5 Venting
10.6 Fault finding chart
11. Maintenance
11.1 General notes
11.2 Cleaning and maintenance intervals
11.3 Cleaning the suction and discharge valves
4
11.4 Maintenance of the relief valve
11.5 Replacing the diaphragm
12. Fault finding chart
13. Dosing curves
Page
14. Disposal
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Warning
4
These complete installation and operating
4
instructions are also available on www.grundfos.com.
5
Prior to installation, read these installation and
5
operating instructions. Installation and operation
5
must comply with local regulations and accepted
5
codes of good practice.
5

1. General information

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1.1 Introduction

5
These installation and operating instructions contain all the
5
information required for starting up and handling the DMX 221
dosing pump.
5
5 If you require further information or if any problems arise, which
6 are not described in detail in this manual, please contact
Grundfos.
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8

1.2 Applications

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9 The DMX 221 pump is suitable for liquid, non-abrasive and
9 non-flammable media strictly in accordance with the instructions
9 in this manual.
10
The DMX 221 dosing pumps have not been approved according
10
to the EC directive 94/9/EC, the so-called ATEX directive.
11
The application of these pumps in potentially explosive
environments according to ATEX directive is therefore not
12
permitted.
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12
Warning
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Other applications or the operation of pumps in
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ambient and operating conditions, which are not
13
approved, are considered improper and are not
13
permitted. Grundfos accepts no liability for any
13
damage resulting from incorrect use.
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14

2. Safety

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This manual contains general instructions that must be observed
15
during installation, operation and maintenance of the pump.
15
This manual must therefore be read by the installation engineer
15
and the relevant qualified personnel/operators prior to installation
16
and start-up, and must be available at the installation location of
16
the pump at all times.
16
It is not only the general safety instructions given in this "Safety"
16
section that must be observed, but also all the specific safety
16
instructions given in other sections.
16
17

2.1 Identification of safety instructions in this manual

17
If the safety instructions or other advice in this manual are not
observed, it may result in personal injury or malfunction and
17
damage to the pump. The safety instructions and other advice are
17
identified by the following symbols:
17
18
Warning
20
If these safety instructions are not observed, it may
20
result in personal injury!
20
20
If these safety instructions are not observed, it may
Caution
20
result in malfunction or damage to the equipment!
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21
Notes or instructions that make the job easier and
Note
ensure safe operation.
21
21
Information provided directly on the pump, e.g. labelling of fluid
21
connections, must be observed and must be maintained in a
21
readable condition at all times.
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