Grundfos SQE-NE Series, Installation And Operating Instructions Manual

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English (GB)
8
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. General
On page 341 of these installation and operating
instructions, you will find copies of the pump and
motor nameplates.
Before the SQ/SQE pump is lowered into the
borehole, this page should be filled in with the
relevant nameplate data.
These installation and operating instructions must be
kept in a dry place near the installation site for
reference purposes.
2.1 Applications
The SQ and SQE pumps are designed for pumping
thin, clean, non-aggressive, non-explosive liquids,
not containing solid particles or fibres.
Typical applications:
• Groundwater supply for
– private housing
– small waterworks
– irrigation systems in for instance green houses.
• Liquid transfer in tanks.
• Pressure boosting.
1. Symbols used in this document 8
2. General
8
2.1 Applications
8
3. Technical data 9
3.1 Storage 9
3.2 Sound pressure level 9
4. Preparation
10
4.1 Refilling of motor liquid
10
4.2 Positional requirements 10
4.3 Liquid temperatures/cooling 10
5. Electrical connection 11
5.1 General
11
5.2 Motor protection
12
5.3 Connection of motor 12
6. Installation 12
6.1 General 12
6.2 Assembly of pump part and motor
12
6.3 Removal of non-return valve
12
6.4 Fitting the cable plug to the motor 13
6.5 Fitting the cable guard 13
6.6 Cable sizing 14
6.7 Fitting the submersible drop cable
14
6.8 Pipework connection
15
7. Start-up 16
8. Operation 16
8.1 Minimum flow rate 16
8.2 Selection of diaphragm tank and setting
of precharge pressure and pressure
switch
16
8.3 Built-in protection
17
9. Maintenance and service 17
9.1 Contaminated pumps 17
10. Fault finding chart 18
10.1 Megging 19
11. Checking the power supply
20
12. Environment 20
13. Disposal 20
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
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical,
sensory or mental capabilities must not
use this product, unless they are under
supervision or have been instructed in
the use of the product by a person
responsible for their safety.
Children must not use or play with this
product.
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.