Grundfos VGA-113, Installation And Operating Instructions Manual

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English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Safety instructions
These installation and operating instructions contain important
information for the user of the product:
• Technical data
• Instructions for commissioning and use
• Safety instructions
If you require further information, or if problems occur that are not
described in detail in this manual, please contact Grundfos.
1.1 Symbols used in this document
This manual contains the following standardised safety
instructions about possible residual risks:
1.2 Safety advice for handling chlorine
1.2.1 Hazards of chlorine gas
• Causes whooping cough, dyspnoea and lacrimation.
• Has a slight paralysing effect to the central nervous system.
• Concentrations of more than 10 ppm chlorine gas in the
respiratory air mean an acute danger to life.
• Inhaling air with a high concentration of chlorine gas for a long
time is lethal.
1.2.2 Hazards of liquid chlorine
• Causes burns of skin.
• Causes reddening and blistering of skin.
1.2.3 Rules of conduct
• Change chlorine containers only with gas mask.
• Enter contaminated rooms only with protective suit and
compressed-air respirator.
• In case of flight wear gas mask, if possible. Observe wind
direction.
1. Safety instructions
4
1.1 Symbols used in this document 4
1.2 Safety advice for handling chlorine 4
1.3 Protective equipment
5
1.4 First aid in case of accidents 5
1.5 Handling chlorine containers 6
1.6 Chlorine rooms 7
2. Introduction
8
2.1 Correct usage 8
2.2 Inappropriate usage 8
2.3 Qualification of the users
8
2.4 Responsibilities of the operator 8
2.5 Maintenance and service personnel 8
2.6 Type key VGA-113 dosing regulator
9
2.7 Transport and storage 9
2.8 Unpacking 9
3. Technical data
10
3.1 General technical data 10
3.2 Dosing flow 10
3.3 Accessories 10
3.4 Dimensions
10
3.5 Electrical data of servomotor 12
3.6 Physical and chemical data of chlorine 13
4. Design and function
13
4.1 Description of the device 13
4.2 Functional principle 14
5. Assembly and installation
15
5.1 Selection of vacuum lines
15
5.2 Connecting the dosing regulator 16
5.3 Connecting an external controller to a servomotor with
analog control 16
5.4 Connecting an external controller to a servomotor with
reversing potentiometer
18
5.5 Installation example 19
6. Startup 19
6.1 Checking the tightness
19
6.2 Chlorine extraction 20
7. Operation 21
7.1 Switching on the chlorine gas dosing system 21
7.2 Setting the dosing flow 21
7.3 Reading the dosing flow 21
7.4 Servomotor 22
7.5 Switching off the chlorine gas dosing system
22
7.6 Changing the chlorine container while the system is
running 22
8. Maintenance
22
9. Fault finding 23
10. Disposal 23
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed, it may
result in personal injury.
Caution
If these safety instructions are not observed, it may
result in malfunction or damage to the equipment.
Note
Notes or instructions that make the job easier and
ensure safe operation.
Warning
Toxic by inhalation.
Irritating to eyes, respiratory system and skin.