English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
These instructions apply to Grundfos MS and MMS
submersible motors for submersible pumps.
These motors must not be put into service until the
machine into which they are to be incorporated has
been declared in conformity with the relevant
directives.
1. Symbols used in this document
1. Symbols used in this document
2
2. Delivery and storage
3
2.1 Delivery
3
2.2 Unpacking
3
2.3 Storage and handling
3
3. General description
3
3.1 Applications
3
3.2 Pumped liquids
3
3.3 Sound pressure level
3
4. Preparation
4
4.1 Checking of liquid in motor
4
4.2 Positional requirements
5
4.3 Liquid temperatures/cooling
6
5. Electrical connection
7
5.1 General
7
5.2 Motor protection
8
5.3 Lightning protection
9
5.4 Cable sizing
10
5.5 Control of single-phase MS 402
11
5.6 Connection of single-phase motors
11
6. Motor installation
14
7. Fitting the pump to the motor
14
7.1 Fitting of submersible drop cable and
motor cable
15
7.2 Maximum installation pressure
15
7.3 Lowering the pump
15
7.4 Frequency of starts and stops
15
8. Maintenance and service
16
9. Fault finding
16
10. Checking of motor and cable
17
11. Disposal
18
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.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
Notes or instructions that make the job
easier and ensure safe operation.
www.motralec.com / service-commercial@motralec.com / 01.39.97.65.10
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