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Grundfos magna3 User Manual

Grundfos magna3
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GRUNDFOS DATA BOOKLET
MAGNA3
From Model D
Circulator pumps
50/60 Hz

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Grundfos magna3 Specifications

General IconGeneral
Liquid Temperature Range-10°C to +110°C
Max Operating Pressure16 bar
TypeCirculator Pump
SeriesMAGNA3
Operating Temperature Range-10°C to +110°C
Ambient Temperature Range0°C to +40°C
Protection ClassIPX4D
Power Supply1 x 230 V, 3 x 230 V, 3 x 400 V
Control ModeConstant pressure, Proportional pressure
CommunicationModbus RTU
Pump HousingCast Iron
ImpellerComposite
Enclosure ClassX4D
ApprovalsCE, EAC
ConnectionFlange
WeightVaries depending on model
Power ConsumptionVaries depending on model

Summary

Product Description

Duty Range

Overview of pump performance ranges including flow rate, head, and pressure limits.

Characteristic Features

Highlights key features like AUTO ADAPT, FLOW LIMIT, and user interface.

Benefits

Lists advantages such as low energy consumption, simple installation, and long life.

Applications

Details system applications like heating, cooling, and solar heating systems.

Type Key

Explains the coding system for MAGNA3 pump models and their specifications.

Model Type Identification

Describes how to identify the pump model from the nameplate.

Twin-Head Pump Heads

Details the function of the flap valve in twin-head pumps and hydraulic differences.

MAGNA3 Performance Range

Displays performance curves for MAGNA3 single-head pumps.

MAGNA3 D Single-Head Performance

Shows performance curves for MAGNA3 D single-head pumps.

MAGNA3 D Twin-Head Performance

Illustrates performance curves for MAGNA3 D twin-head pumps.

Product Range

Single-Head Pump Models

Lists single-head MAGNA3 pump models with part numbers and page references.

Twin-Head Pump Models

Lists twin-head MAGNA3 D pump models with part numbers and page references.

Pump Selection Guidance

Guides on selecting the correct pump size based on system characteristics.

Operating Conditions Overview

Lists conditions to check for proper operation: liquid quality, temperature, and ambient conditions.

Closed Valve Operation

Explains safe operation against a closed valve and minimum flow requirements.

Control Modes

Lists various control modes available for MAGNA3 pumps.

Automatic Setpoint Determination

Explains how to set the setpoint based on the duty point.

Communication Capabilities

Details connecting MAGNA3 to fieldbus networks via CIM modules for process control.

System Applications

Heating Systems

Provides a functional diagram of a heating system with component descriptions.

Main Pumps in Heating

Advises on using speed-controlled MAGNA3 pumps for heating systems and control modes.

Domestic Hot Water Circulation

Recommends constant-temperature control for domestic hot-water circulation.

Mixing Loops in Heating

Explains the use of speed-controlled pumps in mixing loops for better hydraulic balance.

Air Handler Heating Coils

Discusses controlling heating surfaces with variable-flow mixing loops.

Cooling Systems Overview

Presents a functional diagram of a cooling system with component descriptions.

Primary and Secondary Pumps in Cooling

Recommends MAGNA3 pumps for cooling systems, including parallel and twin-head configurations.

Air Handler Cooling Coils

Advises on using variable-flow mixing loops for cooling surfaces.

Heat Recovery System

Highlights the importance of variable-speed pumps in heat recovery systems.

Cooling Tower Applications

Explains adapting cooling tower pumps to changing conditions for energy saving.

Mixing Loops in Cooling

Discusses controlling cooling ceilings and floors with speed-controlled mixing-loop pumps.

Solar-Heating Systems

Details MAGNA3 optimization for solar-heating systems using FLOW ADAPT/FLOW LIMIT.

Ground Source Heat Pump Systems (GSHP)

Describes MAGNA3's suitability for large ground source heat pump systems.

Installation and Commissioning Notes

Notes that no external pressure sensor or motor protection is needed for MAGNA3 installation.

Functions

Operating Modes Overview

Lists operating modes: Normal, Stop, Minimum curve, Maximum curve.

Control Modes Overview

Details control modes: AUTO ADAPT, FLOW ADAPT, Proportional pressure, Constant pressure, etc.

Additional Control Mode Features

Covers features like FLOW LIMIT and Automatic Night Setback.

Multipump Modes

Explains functions like Alternating operation, Backup operation, and Cascade operation.

Pump Readings and Settings

Covers operating panel, display, startup guide, and setting the pump.

Communication Options

Lists communication methods: Wireless Grundfos GO, fieldbus, digital inputs, relay outputs, analog input.

Control Modes Quick Overview

Provides a visual overview of AUTO ADAPT, FLOW ADAPT, Proportional pressure, and Constant temperature control modes.

Differential Temperature Control

Explains maintaining constant differential temperature using pump and external sensors.

Constant Curve Operation

Describes operating according to a constant curve, similar to an uncontrolled pump.

Operating Modes Details

Details Normal, Stop, Min., and Max. operating modes and their use.

AUTO ADAPT Control Mode

Focuses on AUTO ADAPT control mode, its benefits, and technical specifications.

FLOW ADAPT Control Mode

Explains the FLOW ADAPT control mode combining AUTO ADAPT and FLOW LIMIT for precise flow control.

Proportional Pressure Control

Details suitability of proportional pressure control for systems with large pressure losses.

Constant Pressure Control

Explains constant pressure control for systems with small pressure losses.

Constant Temperature Control

Describes constant temperature control for domestic hot-water systems.

Differential Temperature

Explains controlling pump performance based on differential temperature.

Temperature Sensor Installation

Guides on installing temperature sensors for differential temperature measurement.

Constant Curve Duty

Details constant curve operation for systems requiring constant flow and head.

FLOW LIMIT Feature

Introduces FLOW LIMIT as a feature to ensure rated maximum flow is never exceeded.

Automatic Night Setback

Explains the automatic night setback feature for reducing heating costs.

Multipump Modes Explained

Details multipump functions like Alternating, Backup, and Cascade operation.

Flow Estimation Accuracy

Discusses the accuracy of flow estimation using internal sensors.

Operating Panel and Display

Covers the operating panel, display, startup guide, and setting the pump.

Pump Monitoring Overview

Explains the performance overview, status, and pump performance monitoring.

Warning and Alarm Indicators

Describes how to view and interpret pump warnings and alarms.

Heat Energy Monitor Function

Explains the function of the heat energy monitor for tracking and optimizing energy consumption.

Help and Guidance Features

Lists assistance provided by the Assist menu for setup and fault correction.

Grundfos Eye Status Indicator

Describes the Grundfos Eye as a pump status indicator light.

Communication via Grundfos GO

Explains using Grundfos GO for pump monitoring, data collection, and reporting.

CIM Modules for Data Transmission

Describes CIM modules for data transmission to external systems like BMS.

Available CIM Modules

Lists available CIM modules (GENIbus, LonWorks, Modbus RTU, BACnet MS/TP, Ethernet) and their functions.

Digital Inputs Explained

Explains using digital inputs for external control of start/stop or forced curves.

External Forced Curves

Describes forcing pump operation using digital inputs.

External Start or Stop Control

Details controlling pump start/stop via digital inputs.

Relay Outputs Functionality

Explains the functions of the two signal relays for external fault indication.

Analog Input for External Sensors

Describes using analog input for external sensors to optimize pump performance.

External Control System Integration

Explains using analog input for control from a BMS or PLC system.

External Setpoint Function

Details influencing the setpoint externally using analog input.

Operating Conditions

General Recommendations

Provides recommendations for water quality in heating and domestic hot water systems.

Liquid Temperature Ranges

Lists temperature ranges for general and domestic hot-water applications.

Installation Location Advice

Advises on indoor installation and environments to avoid.

Ambient Conditions

Lists acceptable ambient temperatures and relative humidity for operation and storage.

Maximum Operating Pressure

States the maximum operating pressure for MAGNA3 pumps.

Minimum Inlet Pressure Requirements

Details minimum inlet pressure requirements to avoid cavitation and bearing damage.

Pumped Liquids Compatibility

Describes suitable liquids, water quality, and glycol mixtures for MAGNA3 pumps.

Electrical Data Specifications

Lists electrical specifications including supply voltage, inputs, outputs, leakage current, EMC, and power factor.

Sound Pressure Levels

Provides sound pressure levels for different pump sizes.

Construction

Surface Treatment Details

Explains the electrocoating process for pump housings and surface treatment for stainless steel versions.

Motor and Electronic Controller

Describes the PM motor, variable frequency drive, and integrated controller.

Differential-Pressure and Temperature Sensor

Details the specifications and accuracy of the built-in sensors.

Sectional Drawings

Shows sectional views of terminal-connected and wire-to-wire versions with component specifications.

Material Specifications

Lists materials and grades for various pump components.

Sensor Drawing

Illustrates the components of the sensor assembly.

Installation

Mechanical Installation Guidelines

Covers pump installation positions, control box orientation, and pipe stress considerations.

Electrical Installation Requirements

Details electrical connection requirements, grounding, and thermal protection.

Cable Specifications

Specifies requirements for screened, heat-resistant cables for signals.

Additional Protection (GFCI)

Discusses the use of Ground Fault Circuit Interrupters (GFCI).

Power Supply Connections (Terminal)

Shows electrical connection diagrams for terminal-connected motors.

Power Supply Connections (Wire-to-Wire)

Illustrates electrical connection diagrams for wire-to-wire models.

Control Box Connections (Terminal)

Depicts connection examples for analog input, digital input, and relays on terminal-connected units.

Control Box Connections (Wire-to-Wire)

Shows connection examples for analog input, digital input, and relays on wire-to-wire units.

Curve Conditions

Performance Curves Guidelines

Provides guidelines for interpreting performance curves, including test liquid and voltage specifications.

Energy Efficiency Index (EEI)

Explains the energy efficiency index and MAGNA3's compliance with EuP directive.

Markings and Approvals

Lists the safety and regulatory marks for MAGNA3 pumps.

Performance Curves and Technical Data

Conversion Tables

Provides conversion tables for head, pressure, and flow rate units.

MAGNA3 32-60 F (N) Data

Presents performance curves, technical data, and dimensions for MAGNA3 32-60 F (N).

MAGNA3 32-100 F (N) Data

Shows performance curves, technical data, and dimensions for MAGNA3 32-100 F (N).

MAGNA3 40-80 F (N) Data

Displays performance curves, technical data, and dimensions for MAGNA3 40-80 F (N).

MAGNA3 40-120 F (N) Data

Provides performance curves, technical data, and dimensions for MAGNA3 40-120 F (N).

MAGNA3 40-180 F (N) Data

Shows performance curves, technical data, and dimensions for MAGNA3 40-180 F (N).

MAGNA3 50-80 F (N) Data

Presents performance curves, technical data, and dimensions for MAGNA3 50-80 F (N).

MAGNA3 50-150 F (N) Data

Displays performance curves, technical data, and dimensions for MAGNA3 50-150 F (N).

MAGNA3 65-120 F (N) Data

Provides performance curves, technical data, and dimensions for MAGNA3 65-120 F (N).

MAGNA3 65-150 F (N) Data

Shows performance curves, technical data, and dimensions for MAGNA3 65-150 F (N).

MAGNA3 D 65-150 F Data

Presents performance curves, technical data, and dimensions for MAGNA3 D 65-150 F.

MAGNA3 80-100 F (N) Data

Displays performance curves, technical data, and dimensions for MAGNA3 80-100 F (N).

MAGNA3 D 80-100 F Data

Provides performance curves, technical data, and dimensions for MAGNA3 D 80-100 F.

MAGNA3 100-120 F (N) Data

Shows performance curves, technical data, and dimensions for MAGNA3 100-120 F (N).

MAGNA3 D 100-120 F Data

Presents performance curves, technical data, and dimensions for MAGNA3 D 100-120 F.

Accessories

Insulating Kits for AC/Cooling Systems

Describes insulating shells for MAGNA3 pumps used in AC/cooling systems.

CIM Modules

Explains CIM modules for data transmission and lists available modules.

Reuse of CIM Modules

Guides on reusing CIM modules in different units after re-configuration.

Grundfos GO for Wireless Communication

Details Grundfos GO for wireless communication and pump management.

MI 204 Add-on Module

Describes the MI 204 add-on module for connecting to Apple devices.

MI 301 Bluetooth Module

Explains the MI 301 module for communication with smart devices via Bluetooth.

External Grundfos Sensors

Lists combined pressure/temperature sensors and pressure sensors with specifications.

DPI V.2 Transmitter

Details the DPI V.2 transmitter for combined differential-pressure and temperature measurement.

Sensor Cables

Lists available screened cables for sensors with lengths and product numbers.

Blanking Flange

Explains the use of a blanking flange for twin-head pump service.

Pipe Connections

Lists flange fitting sets and gaskets for connecting MAGNA3 pumps to pipes.

Product Numbers

Single-Head Pump Product Numbers

Lists product numbers for single-head MAGNA3 pumps by type, material, and voltage.

Twin-Head Pump Product Numbers

Lists product numbers for twin-head MAGNA3 D pumps by type, material, and voltage.

Grundfos Product Center

Online Search and Sizing Tool

Introduces the Grundfos Product Center for pump selection and information.

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