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Grundfos MAGNA3 25-60 (N) User Manual

Grundfos MAGNA3 25-60 (N)
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MAGNA3
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
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Grundfos MAGNA3 25-60 (N) Specifications

General IconGeneral
ModelMAGNA3 25-60 (N)
CategoryWater Pump
Head Range0 - 6 m
Max. Head6 m
Max. Liquid Temperature110°C
Maximum Operating Pressure10 bar
Voltage1 x 230 V
Mains Frequency50/60 Hz
Insulation ClassF
Pipe ConnectionG 1 1/2
Connection TypeThreaded
Pump HousingStainless Steel
MaterialStainless Steel
Installation Length180 mm
Pump TypeCirculation Pump
Liquid Temperature Range-10°C to +110°C
Enclosure ClassX4D
Protection ClassI
ApprovalsCE, EAC

Summary

1. General information

1.2 Safety symbols on the pump

Details safety symbols and their meanings relevant to pump operation.

3. Installing the product

3.3 Mechanical installation

Details procedures for physically mounting the pump, including flanged and threaded versions.

3.6 Pump head position

Explains how to correctly fit the pump head to the housing, ensuring sealing system integrity.

3.7 Changing the control box position

Provides steps for repositioning the control box and tightening the clamp securely.

3.8 Electrical installation

Covers crucial electrical connection safety, regulations, and requirements.

3.9 Connecting the power supply

Step-by-step guide for wiring the power supply to terminal-connected versions.

4. Starting up the product

4.1 Single-head pump

Details the initial startup procedure for single-head pumps, including control panel interaction.

4.2 Twin-head pump

Explains startup considerations for twin-head pumps and potential warning indications.

7. Control functions

7.2 External connections

Illustrates wiring diagrams for terminal-connected and plug-connected versions.

7.3 Input and output communication

Explains the function of digital inputs and relay outputs for pump control and indication.

8. Setting the product

8.1 Operating the product

Covers safe operation, especially regarding hot surfaces and control panel interaction.

8.6 "Settings" menu

Introduces the main settings menu for configuring pump parameters.

8.6.1 "Setpoint"

Guides on setting the desired head or flow rate for the pump's operation.

8.6.3 "Control mode"

Details the various control modes available for pump operation and how to enable them.

8.6.4 "Controller settings"

Guides on adjusting controller constants (gain Kp, integral time Ti) for optimal performance.

8.6.5 "FLOWLIMIT"

Explains how to enable and set a maximum flow limit for the pump.

8.7 Setting values for control modes

Provides a table of recommended setting values for various control modes and pump types.

"Assisted pump setup"

Provides a guided setup process for configuring pump parameters.

"Multi-pump setup"

Explains how to configure pumps for multipump operation (alternating, back-up, cascade).

8.8.3 "Multi-pump setup"

Details multipump setup options like alternating, back-up, and cascade operations.

8.13 "Assisted fault advice"

Offers guidance and corrective actions for pump failures.

9. Servicing the product

10. Fault finding the product

10.2 Fault finding

Provides methods for resetting fault indications and general troubleshooting advice.

Warning and alarm codes

11.2.1 Description of communication interface modules

11.2.2 Installing a communication interface module

11.4 External sensors

12. Technical data

12.1 Sensor specifications

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