Grundfos VLSE, Installation And Operating Instructions Manual

Page: 3 / 48

3
English (US)
(QJOLVK86
Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1. Pump Information
Page
2. Symbols used in this document
The following symbols may be used in this document.
2. Symbols used in this document 3
4. Installation - mechanical 4
4. Installation - mechanical
4
4.1 Pump identification 4
4.2 Receiving 4
4.3 Temporary storage
4
4.4 Location 5
4.5 Mounting of pump 5
4.6 Floor mounted pumps (VLSE)
5
4.7 Suspended pumps (VLSE) 5
4.8 Piping - general 5
4.9 Suction (inlet) piping
5
4.10 Discharge (outlet) piping 6
4.11 Shaft sealing - general comments 6
4.12 Mechanical seals 6
5. Installation-electrical
6
5.1 Motors general 6
6. Operation 7
6.1 Priming
7
6.2 Pre-start checklist 7
6.3 Motor rotation 7
6.4 Starting the pump
7
6.5 Voltage regulation 7
6.6 Pump shutdown 7
6.7 Short duration shutdown 7
6.8 Extended period shutdown
7
7. Maintenance 8
7.1 Motor lubrication 8
8. Disassembly
8
8.1 Preparation for disassembly 8
8.2 Seal replacement (VLSE) 8
8.3 Wear ring replacement
9
8.4 Reassembly of pumps 9
9. Ordering parts 9
10. Exploded views
10
10.1 Type VLSE, cross section and parts list 10
11. Troubleshooting 11
11.1 Cause codes 11
11.2 Possible causes
11
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.
Warning
When pumping hazardous liquids, special
attention must be paid to the risk of personal
injury.
Warning
The surface of the product may be so hot that
it may cause burns or personal injury.
Warning
The sound pressure level is so high that hearing
protection must be used.
& &DXWLRQ
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment.
1 1RWH
1 1RWH
Notes or instructions that make the job easier
and ensure safe operation.