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Grundfos CRN 15 - User Manual

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

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Grundfos CRN 15 Specifications

General IconGeneral
BrandGrundfos
ModelCRN 15
CategoryWater Pump
LanguageEnglish

Summary

Limited Warranty

General Information

Hazard Statements

Symbols and statements indicating hazards.

Product Handling and Verification

Transporting the Product

Instructions for safe product transportation.

Lifting Instructions

Guidelines for safely lifting the product.

Inspecting and Verifying the Product

Checks for damage, model, and type.

Product Identification

Nameplate Data Explanation

Description of information found on the pump nameplate.

Product Type Key Codes

Pump Applications and Operating Conditions

Inlet and Operating Pressures

Mechanical Installation Requirements

Contamination Precautions

Precautions for pumping drinking water.

Installation and Mounting Guidelines

Product lifting, location, foundation, and securing.

Pump Mounting and Piping

Flange Forces and Torques

Temperature Rise and Electrical Connection

Electrical Connection Safety Warnings

Warnings regarding electric shock during electrical work.

Verifying Supply Voltage and Connections

Procedures for checking supply voltage and connections.

Motor and Electrical Installation

Starting Up the Pump

Startup Warnings and Precautions

Warnings for corrosive, toxic, hot or cold liquids.

Priming Procedures

Steps for priming the pump in various system types.

Operating the Product

Pump Operation and Maintenance

Pump and Motor Maintenance

Replacing the Motor

Motor Replacement Safety

Safety warnings before starting motor replacement.

Coupling Adjustment Procedures

Preliminary Electrical Tests

Supply Voltage Measurement

How to measure and interpret supply voltage.

Current Measurement and Interpretation

How to measure and interpret motor current.

Insulation Resistance Measurement

How to measure motor winding insulation resistance.

Startup of Pumps with Cool-Top

Diagnosing Specific Problems

Pump Does Not Run Troubleshooting

Possible causes and remedies for pump not running.

Troubleshooting Pump Performance

Reduced Performance or No Water Delivery

Causes and remedies for low performance or no water.

Troubleshooting Electrical Issues

Fuse or Breaker Tripping Causes

Causes and remedies for blown fuses or tripped breakers.

Three-Phase Motor Current Unbalance

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