Grundfos CRK Series, Installation And Operating Instructions Manual

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English (GB)
Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
2. Handling
When the entire pump is to be lifted, observe the
following:
•
CRK and MTR pumps fitted with a Grundfos MG
motor up to 0.75 kW should be lifted in the pump
head by means of straps or the like.
• CRK and MTR pumps fitted with a Grundfos MG
motor from 1.1 to 22 kW must be lifted by means
of the lifting eyes.
• For other motor makes than those mentioned
above, we recommend to lift the pump in the
pump head by means of straps.
1. Symbols used in this document 4
2. Handling 4
3. Applications
5
3.1 Pumped liquids 5
4. Identification 5
4.1 Nameplate for CRK and MTR 5
4.2 Type key for CRK
6
4.3 Type key for MTR, MTRE
7
5. Technical data 8
5.1 Ambient temperature 8
5.2 Maximum permissible operating pressure
and liquid temperature for the shaft seal
8
5.3 Minimum flow rate 9
5.4 Electrical data 9
5.5 Maximum number of starts 9
6. Installation
9
6.1 Pump location
9
6.2 Suction conditions 10
7. Electrical connection 11
7.1 Frequency converter operation 11
7.2 Other motor makes
11
8. Start-up 12
8.1 Before starting the pump 12
8.2 Starting the pump 12
9. Maintenance 12
9.1 Filters
13
9.2 Periodic checks 13
10. Service 13
10.1 Service kits 13
10.2 Coupling adjustment 13
11. Sound pressure level
13
12. Fault finding
14
13. Disposal 15
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.
Warning
The surface of the product may be so hot
that it may cause burns or 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.