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Grundfos CMBE 1-44 - User Manual

Grundfos CMBE 1-44
34 pages
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CMBE
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
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Grundfos CMBE 1-44 Specifications

General IconGeneral
ModelCMBE 1-44
Max Head44 m
Max Pressure4.4 bar
Rated head44 m
Pumped liquidWater
Maximum operating pressure10 bar
Enclosure classIP55
Frequency50/60 Hz
Housing MaterialStainless Steel
Seal TypeMechanical Seal
Fluid Temperature Range0°C to +60°C
ControlSpeed control
Pipe connectionG 1 inch
Connection Inlet/OutletFlanged
Pump TypeMultistage centrifugal pump

Summary

Safety Instructions

Mechanical Installation

Installation Altitude

Defines installation altitude and its effect on motor output.

Electrical Connection

Cable Requirements

Outlines requirements for electrical cable selection and use.

Motor Protection

Describes the motor's internal thermal protection against overloading.

Protection Against Mains Voltage Transients

Explains the pump's protection against voltage transients.

Inputs and Outputs

Lists the connections available on the standard functional module.

Connection Terminals for Inputs and Outputs

Displays terminal assignments for inputs and outputs.

Starting Up the Product

Priming and Venting the Product

Steps for priming and venting the pump.

Adjusting the Diaphragm Tank Pressure

Procedure for checking and adjusting diaphragm tank pressure.

Control Functions

Dry-Running Protection

Describes the automatic pump stop mechanism for dry running.

Pressure Switch

Details the function and adjustment of the pressure switch.

Setting the Product

Setpoint Setting

Instructions for setting the desired operating pressure setpoint.

Start;Stop of Pump

Procedures for manually starting and stopping the pump.

Fault Finding

Pump Does Not Run

Troubleshooting steps when the pump fails to operate.

Pump Performance Is Unstable

Troubleshooting steps for unstable pump performance.

Pump Has Tried to Restart Five Times and Is Now Stopped.

Troubleshooting steps when the pump repeatedly stops after restarts.

Pump Runs Backwards When Switched Off.

Troubleshooting steps for reverse pump operation.

Technical Data

Supply Voltage

Specifies the required supply voltage and frequency.

Overload Protection

Information on the motor's overload protection characteristics.

Cable Requirements

Technical specifications for required cables.

Further Product Information

Disposing of the Product

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