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Grundfos CR 5 - User Manual

Grundfos CR 5
37 pages
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GRUNDFOS INSTRUCTIONS
CR, CRI, CRN, CRT
Installation and operating instructions

Other manuals for Grundfos CR 5

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Grundfos CR 5 Specifications

General IconGeneral
Flow rate6 m³/h
Pump TypeCentrifugal
Power Consumption0.37 kW
Frequency50 Hz / 60 Hz
Housing MaterialStainless Steel
Impeller MaterialStainless Steel
Seal TypeMechanical Seal
Voltage230 V / 400 V

Summary

Limited Warranty Information

General Information and Introduction

Hazard Statements and Notes

Symbols and statements indicating potential hazards and general notes for guidance.

Product Identification

Nameplate Data

Explanation of information provided on the pump's nameplate.

Type Key Decoding

CR, CRI, CRN (1 s, 1-20) Type Keys

Decoding the type key for specific CR, CRI, CRN pump models.

CR, CRN (32, 45, 64) Type Keys

Decoding the type key for CR, CRN 32, 45, and 64 pump models.

5.2.4 Codes

Shaft Seal and Rubber Part Codes

Maximum Inlet and Operating Pressures

8. Mechanical Installation

Base and Bolt Hole Center Line Dimensions

8.5 Pump Mounting and Piping

8.9 Flange Forces and Torques

9. Electrical Connection

Electrical Connection Safety

Critical safety warnings regarding electrical hazards and grounding procedures.

Motor Details and Protection

10. Starting Up the Product

Startup Safety Warnings

Safety warnings for handling hazardous liquids during pump startup.

11. Operating the Product

Operating Warnings and Precautions

Safety warnings for contamination, noise, pressure, and hot/cold surfaces/liquids.

Pump Cycling, Boiler Feed, Frost Protection, and Servicing

Servicing Safety Warnings

Safety warnings for electric shock, falling objects, and hazardous liquids/surfaces.

13. Maintaining the Pump

Pump Maintenance Safety

Safety warnings for electric shock and falling objects during pump maintenance.

14. Maintaining the Motor

Motor Maintenance Safety

Safety warnings for electric shock and falling objects during motor maintenance.

14.2 Motor Lubrication Details

15. Replacing the Motor

Motor Replacement Safety

Safety warnings for electric shock and falling objects during motor replacement.

Coupling Adjustment Procedures

17. Preliminary Electrical Tests

Electrical Test Safety

Critical safety warning for electrical hazards before performing tests.

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

19. Diagnosing Specific Problems

Troubleshooting Safety

Critical safety warning for electrical hazards during troubleshooting.

19.1 The Pump Does Not Run

Troubleshooting steps for a pump that fails to start or run.

Troubleshooting Pump Performance Issues

2. Pump Runs at Reduced Performance or No Water Delivery

Troubleshooting steps for a pump running at reduced performance or not delivering water.

3. Pump Cycles Too Much

Troubleshooting steps for a pump that cycles excessively.

Troubleshooting Fuse and Breaker Trips

4. Fuses Blow or Circuit Breakers Trip

Troubleshooting steps for issues causing fuses or circuit breakers to trip.

20. Worksheet for Three-Phase Motors

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