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Grundfos MAGNA1 Series User Manual

Grundfos MAGNA1 Series
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MAGNA1
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

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Grundfos MAGNA1 Series Specifications

General IconGeneral
Insulation ClassF
TypeCirculator pump
Control Panel PositionIntegrated
SeriesMAGNA1
WeightVaries by model
Power Supply3 x 380-480 V, 50/60 Hz
Pump HousingCast iron
Connection TypeFlanged
Voltage380-480 V
MaterialCast iron, stainless steel
Temperature Range-10°C to +110°C
Ambient Temperature Range0°C to +40°C

Summary

Symbols Used in This Document

General Information

Applications

Details the systems where the MAGNA1 pump is designed for circulating liquids.

Pumped Liquids

Specifies the suitable types of liquids for the MAGNA1 pump and their properties.

Operating Conditions

Details temperature limits, system pressure, test pressure, ambient temperature, and sound pressure level.

Frost Protection

Provides guidance on preventing frost damage to the pump.

Insulating Shells

Information on insulating shells for pumps to reduce heat loss.

Non-Return Valve Considerations

Guidance on setting the minimum discharge pressure relative to non-return valves.

Nameplate Information

Explains the information provided on the pump's nameplate.

Recommended Tools

Lists the tools recommended for installation and maintenance.

Mechanical Installation

Lifting the Pump Safely

Safety precautions and methods for lifting the pump correctly.

Pump Installation Procedures

Instructions for installing the MAGNA1 pump in various system configurations.

Pump Positioning Guidelines

Guidelines for correct pump orientation to ensure proper operation and cooling.

Control Box Positioning for Cooling

Details on positioning the control box for optimal cooling and functionality.

Changing Control Box Position

Step-by-step guide for repositioning the pump's control box.

Electrical Installation

Supply Voltage Requirements

Specifies the required supply voltage and frequency for the pump.

Power Supply Connection Steps

Instructions for safely connecting the pump to the power supply.

ALPHA-plug Version: Assembly & Disassembly

Instructions for assembling and disassembling the ALPHA-plug connector.

Electrical Connection Diagrams

Diagrams illustrating the correct electrical connections for the pump.

First Start-up Procedures

Settings

Control Panel and Settings Details

Details the control panel, Grundfos Eye indicator, and pump setting light indicators.

Overview of Pump Settings

Explains different pump performance settings and their relation to system type.

Control Mode Selection Guide

Guidance on selecting the appropriate control mode based on system application.

Fault Finding and Troubleshooting

Grundfos Eye Status Indicators

Interprets the status indications of the Grundfos Eye for fault diagnosis.

Resetting Fault Indications

Procedures for resetting fault indications and troubleshooting steps.

Pump Accessories

Insulating Kits for HVAC Systems

Product numbers for insulating kits for air-conditioning and cooling systems.

Blanking Flanges

Information on blanking flanges for twin-head pump maintenance.

Counter Flanges for Cast-Iron Pumps

Details on counter-flange kits for cast-iron pumps, including specifications.

Counter Flanges for Stainless-Steel Pumps

Details on counter-flange kits for stainless-steel pumps, including specifications.

Additional Counter Flanges

Specifications for counter flanges for MAGNA1 DN 80 and DN 100 pumps.

Port-to-Port Length Adapters

Product numbers and dimensions for adapters to adjust port-to-port lengths.

Technical Data and Specifications

Pump Specifications and Parameters

Details on electrical, environmental, pressure, and performance specifications of the pump.

Product Disposal and Recycling

Dimensions (Threaded Version)

Dimensions (Flanged Version)

Twin-Head Pump Dimensions

Table of dimensions for twin-head MAGNA1 pumps in flanged versions.

Forces and Moments on Connections

Bolt Tightening Torques

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