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Grundfos CRN 64 User Manual

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

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Grundfos CRN 64 Specifications

General IconGeneral
ModelCRN 64
Max PressureVaries depending on the specific model and configuration. Consult the specific datasheet.
Frequency50/60 Hz
Pump TypeMultistage centrifugal pump
Max Flow Rate120 m³/h
Max Head140 m
Motor Power22 kW
MaterialStainless steel
Operating Temperature Range-15°C to +120°C
Liquid Temperature Range-15°C to +120°C

Summary

Limited warranty

General information

Hazard statements

Explains symbols and statements for hazardous situations, injury, and death.

Receiving the product

Lifting instructions

Instructions for safe lifting of the pump, including warnings.

Identification

Nameplate data

Detailed explanation of information found on the pump's nameplate.

Type keys

Explanation of the coding system used to identify pump models and configurations.

Operating conditions

Mechanical installation

Lifting the product

Safety warnings and instructions for lifting the pump safely.

Electrical connection

Starting up the product

Priming

Detailed steps for priming the pump before starting, for closed and open systems.

Operating the product

Startup instructions

Step-by-step guide for starting the pump, including checks and rotation verification.

Pump cycling

Servicing the product

Maintaining the pump

Maintaining the motor

Motor inspection

Routine inspection steps for the motor, including cleaning and electrical checks.

Motor lubrication

Detailed guidance on motor lubrication, including types of grease and procedures.

Replacing the motor

Disassembly

Step-by-step instructions for disassembling the motor from the pump.

Assembly

Step-by-step instructions for assembling a new motor onto the pump.

Preliminary electrical tests

Supply voltage

How to measure and interpret supply voltage readings for the pump motor.

Current

How to measure and interpret motor current draw.

Startup of pump with air-cooled top (Cool-Top®)

Diagnosing specific problems

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