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Grundfos Magna 32-120 User Manual

Grundfos Magna 32-120
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GRUNDFOS MAGNA
Series 2000
MAGNA 32-120, 40-120, 50-120, 65-120, 50-60, 65-60
GRUNDFOS INSTRUCTIONS
Installation and operating instructions

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Grundfos Magna 32-120 Specifications

General IconGeneral
Insulation ClassF
Frequency50 / 60 Hz
Connection SizeDN 32
MaterialCast Iron
ApprovalsCE
Connection TypeFlange
Pump TypeCentrifugal

Summary

Symbols Used in this Document

General Description

Applications

Pumped Liquids

Specifies the types of liquids suitable for the pump.

Installation

Changing the Control Box Position

Step-by-step guide to repositioning the control box.

Twin-Head Pumps

Details on twin-head pump installation and features.

Non-Return Valve

Guidance on non-return valve compatibility with pump operation.

Electrical Connection

Frost Protection

Measures to prevent pump damage from frost.

Supply Voltage

Specifies the required electrical supply voltage.

Connection Diagram

Illustrates the wiring connections for the pump.

Start-up

Functions

Control Modes

Explains the different operational control modes available for the pump.

Selection of Control Mode

Guides the selection of the most suitable control mode for system types.

Automatic Night-Time Duty

Describes the automatic adjustment of pump performance based on temperature.

Constant-Curve Duty

Allows the pump to operate at a constant speed or curve.

Pump Operation Settings

Max. or Min. Curve Duty

Enables selection of maximum or minimum operating curves for the pump.

Temperature Influence

Adjusts pump setpoint based on liquid temperature for efficiency.

Signals and Indicators

External Start/Stop

Allows the pump to be controlled externally via a contact or relay.

Signal Relay

Provides potential-free fault and operating signals from the pump.

Indicator Lights

Explains the function of various LED indicators on the pump.

Expansion Modules

Fitting an Expansion Module

Illustrates the procedure for installing an expansion module.

Wiring Diagrams for Expansion Modules

Provides detailed wiring diagrams for GENI and LON expansion modules.

GENI Module

Control of Twin-Head Pumps

Details the control of twin-head pumps using the GENI module.

LON Module

Setting the Pump

Control Panel Overview

Describes the components and functions of the pump's control panel.

Factory Setting

States the default settings of the pump upon factory dispatch.

Control Mode Setting

Explains how to change the pump's operating control mode via the panel.

Setpoint Setting

Guides the user on how to set the desired pump setpoint.

Max. Curve Duty

Min. Curve Duty

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