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Grundfos Geo-Flo MAGNA3 User Manual

Grundfos Geo-Flo MAGNA3
26 pages
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Installation Information
Wiring
Plumbing
Start-Up
Control Mode Settings
Multi-Pump Setup
Faults
IM1542EW 04/15
MAGNA3 Insulated Pumps Installation Manual
MAGNA3
Insulated Pumps
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Grundfos Geo-Flo MAGNA3 Specifications

General IconGeneral
Liquid Temperature Range-10 °C to +110 °C
Max Operating Pressure10 bar
TypeCirculator pump
SeriesMAGNA3
Frequency50 / 60 Hz
Ambient Temperature0 °C to +40 °C
Power Input0.37 - 22 kW
Control ModeProportional pressure, constant pressure, constant curve
CommunicationModbus RTU, BACnet MS/TP
ApprovalsCE
Pump HousingCast iron, stainless steel
ImpellerComposite material
ApplicationHeating, cooling
ConnectionFlanged, threaded
Power Consumption0.37 - 22 kW
Voltage1x230V, 3x400V
Housing MaterialCast Iron
Impeller MaterialComposite material
WeightVaries depending on model (see product documentation)

Summary

Model Nomenclature

General Installation Information

Determining the Pump Control Mode

Wiring

Plumbing

WWKVS

Kit for variable speed units with AXB controls, requires AID tool for flow rate adjustment.

WWK3T

Kit for dual capacity units without AXB controls, uses solenoid, slow closing, and ball valves for flow.

Start-Up

Option 1: Constant Curve Mode

Steps to set up the pump for Constant Curve Mode, including setpoint adjustment.

Option 2: Constant Pressure Mode

Steps to set up the pump for Constant Pressure Mode, including psi adjustment and flow balancing.

Multi-Pump Setup

Antifreeze Selection and Use

Pipe Pressure Drop

Faults

Notes

Revision Guide

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