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Grundfos MQ 3-25 User Manual

Grundfos MQ 3-25
268 pages
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MQ
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Table of Contents

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Grundfos MQ 3-25 Specifications

General IconGeneral
Rated flow2.5 m³/h
Max head25 m
Power0.55 kW
Voltage230 V
Supply voltage230 V
Frequency50 Hz
Enclosure classIP 44
Pumped liquidClean water
Inlet/Outlet Size1 inch
Flow rate3.0 m³/h
Liquid temperature range0 °C
MaterialStainless steel

Summary

Product Symbols and Overview

Safety Symbols and Important Notes

Key safety symbols, warnings, cautions, and general notes for safe operation.

MQ Pump Description and Applications

Details the MQ pump's design, type key, and typical installation scenarios.

Pumped Liquids

Technical Specifications and Data

Operating Conditions and Electrical Data

Covers pressure, temperature, voltage, power consumption, and other technical parameters.

Pump Functions and Control

Control Panel Operation Guide

Explains the buttons, indicator lights, and functions of the control panel.

Automatic Pump Protection and Stop

Details the built-in protective functions like dry-running and overtemperature protection.

Installation and Connection Guide

Pump Mounting and Electrical Setup

Guides on how to properly mount the pump and perform electrical connections.

Powering the Pump: Generator, Inverter, and Startup

Covers generator/inverter use, and initial pump startup procedures.

Maintenance and Service

Routine Maintenance and Care

Information on keeping the pump clean, service kits, and shaft seal run-in.

Service

Fault Finding Guide

Product Disposal Instructions

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