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English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1.
2.
2.1
3.
3.1
3.2
4.
4.1
4.2
4.3
5.
5.1
5.2
5.3
6.
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
7.
8.
8.1
8.2
8.3
9.
9.1
10.
11.
12.
13.
Warning
Prior to installation, read these
installation and operating instructions.
Installation and operation must comply
with local regulations and accepted
codes of good practice.
8
Warning
The use of this product requires
experience with and knowledge of the
Page
product.
Persons with reduced physical,
8
sensory or mental capabilities must not
8
use this product, unless they are under
8
supervision or have been instructed in
the use of the product by a person
9
responsible for their safety.
9
Children must not use or play with this
9
product.
10
10
1. Symbols used in this document
10
10
Warning
11
If these safety instructions are not
observed, it may result in personal
11
injury!
12
12
If these safety instructions are not
12
Caution
observed, it may result in malfunction
12
or damage to the equipment!
12
Notes or instructions that make the job
12
Note
easier and ensure safe operation.
13
13
2. General
14
14
On page 341 of these installation and operating
15
instructions, you will find copies of the pump and
motor nameplates.
16
Before the SQ/SQE pump is lowered into the
16
borehole, this page should be filled in with the
16
relevant nameplate data.
These installation and operating instructions must be
kept in a dry place near the installation site for
16
reference purposes.
17
17
2.1 Applications
17
The SQ and SQE pumps are designed for pumping
18
thin, clean, non-aggressive, non-explosive liquids,
not containing solid particles or fibres.
19
Typical applications:
20
•
Groundwater supply for
20
- private housing
20
- small waterworks
- irrigation systems in for instance green houses.
•
Liquid transfer in tanks.
•
Pressure boosting.
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Table of Contents
Related Manuals for Grundfos SQE-NE Series
Summary of Contents for Grundfos SQE-NE Series
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Page 1: Table Of Contents
English (GB) Installation and operating instructions Original installation and operating instructions. Warning The use of this product requires CONTENTS experience with and knowledge of the Page product. Persons with reduced physical, Symbols used in this document sensory or mental capabilities must not General use this product, unless they are under Applications... -
Page 2: Technical Data
SQ 5, SQ 7: Rp 1 1/2. pH values SQ and SQE: 5 to 9. Pump diameter SQE-NE: Please contact Grundfos. 74 mm. Liquid temperature Borehole diameter The temperature of the pumped liquid must not Minimum 76 mm. exceed 35 °C. -
Page 3: Preparation
4. Preparation 4.2 Positional requirements The pump is suitable for vertical as well as horizontal Grundfos MS 3 and MSE 3 submersible motors have installation, however, the pump shaft must never fall water-lubricated slide bearings. No additional below the horizontal plane. See fig. 2. -
Page 4: Electrical Connection
3 mm in all poles. If the motor cable is damaged, it must be replaced by Grundfos, an authorised Grundfos service workshop or similarly qualified persons to avoid a hazard. The supply voltage, rated maximum current and power factor (PF) appear from the motor nameplate. -
Page 5: Motor Protection
1. Place the motor horizontally in a vice and tighten it. See fig. 6. 2. Pull the pump shaft out to the position shown in Fig. 7 fig. 5. SQE-NE is supplied without non-return Note valve. The non-return valve can be fitted in a Grundfos service workshop. -
Page 6: Fitting The Cable Plug To The Motor
If the motor cable is to be replaced, see See fig. 9. section 5.1 General. The cable with plug must be fitted or removed by an authorised Grundfos service workshop or a similarly qualified person. The cable plug supplied with the motor is factory- greased. -
Page 7: Cable Sizing
11.2 1.85 6.7 Fitting the submersible drop cable It is recommended to join the submersible drop cable and the motor cable by means of a Grundfos cable termination kit, type KM. Cable termination kit, type KM Cross-sectional area Product number 1.5 to 2.5 mm... -
Page 8: Pipework Connection
6.8 Pipework connection 6.8.1 Cable clips Cable clips must be fitted every 3 metres. If a tool, e.g. a chain pipe wrench, is used when the See fig. 11. riser pipe is fitted to the pump, the pump must only be gripped by the pump discharge chamber. -
Page 9: Start-Up
7. Start-up is equal to the desired minimum pressure at the highest tap + head and head loss in the pipe from the Make sure that the well is capable of yielding a pressure switch and diaphragm tank to the highest minimum quantity of water corresponding to the tap (p = B + C). -
Page 10: Built-In Protection
If the pump has been stopped as a result of dry The pumps can be serviced at a Grundfos service running, it will start automatically after 5 minutes. centre. If the pump is restarted and the borehole is empty, 9.1 Contaminated pumps... -
Page 11: Fault Finding Chart
SQE-NE: Only pumps that can be certified as uncontaminated, i.e. pumps containing no hazardous and/or toxic material, may be returned to Grundfos for servicing. To prevent injury to the health of persons involved and to the environment, a document certifying that the pump is clean is required. -
Page 12: Megging
Fault Cause Remedy The pump runs at The drawdown is larger than Increase the installation depth of the pump, reduced capacity. anticipated. throttle the pump or replace it by a smaller model to obtain a smaller capacity. The valves in the discharge pipe Check and clean/replace the valves, are partly closed/blocked. -
Page 13: Checking The Power Supply
In case of doubt, please contact Grundfos or the local authorities. 13. Disposal This product or parts of it must be disposed of in an environmentally sound way: 1.