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Grundfos CR 15 - User Manual

Grundfos CR 15
37 pages
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GRUNDFOS INSTRUCTIONS
CR, CRI, CRN, CRT
Installation and operating instructions

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Grundfos CR 15 Specifications

General IconGeneral
Pump TypeCentrifugal
Impeller MaterialStainless Steel
Pump Housing MaterialStainless Steel
Frequency50/60 Hz
Protection ClassIP55
MaterialStainless Steel
Liquid Temperature Range-20 °C to +120 °C (depending on model and liquid)
InstallationVertical
ConnectionsFlanged or Threaded
Seal TypeMechanical Seal
Connection SizeDN32 to DN200
Voltage3 x 220-240/380-415 V
WeightVaries depending on model

Summary

1. Limited Warranty

2. General Information

2.1 Hazard Symbols

Explains hazard symbols and warning structures used in the manual.

4. Receiving the Product

4.3 Lifting Instructions

Provides detailed instructions and safety precautions for lifting the pump.

8. Mechanical Installation

WARNING: Drinking Water Contamination

Crucial safety warning concerning drinking water contamination.

8.9 Flange Forces and Torques

8.10 Minimum Continuous Flow Rates

9. Electrical Connection and Safety

Electrical Safety Warnings

Warnings about electric shock, grounding, voltage variations, and power isolation.

10. Starting Up the Product

Liquid Handling Safety

Warnings for handling corrosive, toxic, and hot/cold liquids during startup.

10.2 Startup Instructions

11. Operating the Product

Operational Safety Warnings

Warnings for drinking water, noise, pressure, hot surfaces/liquids.

12. Servicing the Product

Servicing Safety Precautions

Warnings for electric shock, falling objects, and handling contaminated products during servicing.

13. Pump Maintenance Checks

Pump Maintenance Safety

Safety warnings for electric shock and falling objects during maintenance.

14. Motor Maintenance and Inspection

Motor Maintenance Safety

Safety warnings for electric shock and falling objects during maintenance.

14.2 Motor Lubrication

15. Replacing the Motor

Motor Replacement Safety

Warnings for electric shock and falling objects during motor replacement.

17. Preliminary Electrical Tests

Electrical Test Safety

Warning for electric shock before performing preliminary electrical tests.

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

19. Diagnosing Specific Problems

Troubleshooting Safety

Warning for electric shock before initiating troubleshooting.

19.2 Reduced Pump Performance

19.3 Excessive Pump Cycling

19.4 Tripping Protection Devices

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