Installation And Operating Instructions; Symbols Used In This Document; General; Applications - Grundfos SQ Serie Montage- Und Betriebsanleitung

English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1. Symbols used in this document
2. General
2.1 Applications
3. Technical data
3.1 Storage
3.2 Sound pressure level
4. Preparation
4.1 Refilling of motor liquid
4.2 Positional requirements
4.3 Liquid temperatures/cooling
5. Electrical connection
5.1 General
5.2 Motor protection
5.3 Connection of motor
6. Installation
6.1 General
6.2 Assembly of pump part and motor
6.3 Removal of non-return valve
6.4 Fitting the cable plug to the motor
6.5 Fitting the cable guard
6.6 Cable sizing
6.7 Fitting the submersible drop cable
6.8 Pipework connection
7. Start-up
8. Operation
8.1 Minimum flow rate
8.2 Selection of diaphragm tank and setting
of precharge pressure and pressure
switch
8.3 Built-in protection
9. Maintenance and service
9.1 Contaminated pumps
10. Fault finding chart
10.1 Megging
11. Checking the power supply
12. Environment
13. Disposal
Warning
Prior to installation, read these

installation and operating instructions.

Installation and operation must comply
with local regulations and accepted
codes of good practice.
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Warning
The use of this product requires
experience with and knowledge of the
Page
product.
Persons with reduced physical,
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sensory or mental capabilities must not
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use this product, unless they are under
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supervision or have been instructed in
the use of the product by a person
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responsible for their safety.
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Children must not use or play with this
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product.
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1. Symbols used in this document

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Warning
11 If these safety instructions are not
observed, it may result in personal
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injury!
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If these safety instructions are not
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Caution
observed, it may result in malfunction
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or damage to the equipment!
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Notes or instructions that make the job
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Note
easier and ensure safe operation.
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2. General

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On page 341 of these installation and operating
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instructions, you will find copies of the pump and
motor nameplates.
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Before the SQ/SQE pump is lowered into the
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borehole, this page should be filled in with the
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relevant nameplate data.
These installation and operating instructions must be
kept in a dry place near the installation site for
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reference purposes.
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2.1 Applications

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The SQ and SQE pumps are designed for pumping
18 thin, clean, non-aggressive, non-explosive liquids,
not containing solid particles or fibres.
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Typical applications:
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• Groundwater supply for
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- private housing
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- small waterworks
- irrigation systems in for instance green houses.
• Liquid transfer in tanks.
• Pressure boosting.