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Grundfos CR 64 User Manual

Grundfos CR 64
37 pages
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GRUNDFOS INSTRUCTIONS
CR, CRI, CRN, CRT
Installation and operating instructions

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Grundfos CR 64 Specifications

General IconGeneral
Pump typeCentrifugal pump
Maximum operating pressure25 bar
Liquid temperature range-20°C to +120°C
Frequency50/60 Hz
Protection ClassIP55
Voltage3 x 380-415V
MaterialStainless steel

Summary

1. Limited warranty

2. General information

2.1 Hazard statements

Explains hazard symbols and statements used in manuals for safe operation and installation.

4. Receiving the product

4.3 Lifting Instructions

Details safety precautions and procedures for lifting the pump using appropriate equipment.

5. Identification

5.1 Nameplate Data

Explains the information found on the pump's nameplate for identification and specifications.

5.2 Type Keys and Codes

8. Mechanical Installation

Safety and General Installation Notes

Covers contamination warnings for drinking water, pump location, and outside installation.

8.1 Lifting Instructions

Details safety precautions and procedures for lifting the pump using appropriate equipment.

8.5 Pump Mounting

Pressurised System Warning

Warns of hazards associated with pressurised systems and handling pump ports.

9. Electrical Connection

Electrical Safety Warnings

Covers electrical shock hazards, grounding, and safe power switching procedures.

9.4 Motor Protection

10. Starting Up the Product

Liquid Handling and Priming Warnings

Covers warnings for corrosive, toxic, hot, or cold liquids and safe priming practices.

10.2 Startup Instructions

11. Operating the Product

Operating Safety and Precautions

Covers contamination, noise, pressure, and surface/liquid temperature hazards.

12. Servicing the Product

Servicing Safety and Hazard Warnings

Details dangers and warnings for servicing, including electrical shock and contaminated products.

13. Pump Maintenance

Pump Maintenance Safety

Covers electrical shock and falling object hazards during pump maintenance.

14. Motor Maintenance

15. Replacing the Motor

17. Preliminary Electrical Tests

18. Startup with Air-Cooled Top (Cool-Top®)

19. Diagnosing Specific Problems

Electrical Safety for Troubleshooting

Warns of severe electrical shock hazards and the need to switch off power before diagnosing problems.

Problem 2: Reduced Performance

Problem 3: Pump Cycles Too Much

Problem 4: Fuses Blow or Relays Trip

20. Worksheet for Three-Phase Motors

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