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Grundfos PM 2 - User Manual

Grundfos PM 2
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PM 2
GRUNDFOS INSTRUCTIONS
Installation and operating instructions

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Grundfos PM 2 Specifications

General IconGeneral
Supply voltage220-240 V
Mains frequency50/60 Hz
Maximum operating pressure10 bar
Enclosure classIP65
Max. current10 A
Liquid temperature0 to 40 °C
Relative humidity95% RH

Summary

Declaration of Conformity (GB)

Electrical Equipment Safety

Conformity statement for electrical equipment used within specified voltage limits.

Electromagnetic Compatibility

Conformity statement regarding electromagnetic compatibility standards.

PM 2 Installation, Symbols, and Applications

Document Symbols and Safety

Explanation of warning symbols, cautions, and notes for safe operation.

Typical Use Cases and Liquid Compatibility

Details typical scenarios and liquid types suitable for the PM 2.

Operating Parameters and Installation

Lists operating parameters and provides installation and location advice.

Electrical Connections

Connecting with Cables and Plug

Guide for connecting PM 2 units with pre-fitted cables and plugs.

Connecting without Cables

Steps for electrically connecting PM 2 units lacking pre-fitted cables.

Alternative Power Supply

Information on using generators or other alternative power sources.

Control Panel Features

Indicators and Reset Button

Description of pressure scale, status lights (Pump on, Alarm), and the Reset button.

DIP Switch Settings and Configuration

Setting Start and Stop Pressures

Details on setting the start pressure using DIP switches 1-4.

1 Bar Differential Pressure Mode

Configuration for start/stop with 1 bar differential pressure using DIP switch 5.

Function Settings (Auto-Reset, Anti-Cycling)

Configuration of auto-reset, anti-cycling, and max run time using DIP switches 6-8.

PM 2 Setup and Operation Modes

DIP Switch Configuration and Verification

Procedures for enabling and verifying DIP switch settings.

Initial Start-up Procedure

Step-by-step guide for initial start-up and verification.

Start;Stop by Water Consumption

Default mode: pump starts/stops based on water flow and pressure.

Advanced PM 2 Operation

Differential Pressure and Power Failure Modes

Start/stop with differential pressure and behavior after power failure.

Safety Functions (Auto-Reset, Anti-Cycling)

Configuration and use of auto-reset and anti-cycling features.

Operation Limits (Max Run Time, Dry Running)

Settings for maximum run time and dry-running protection.

Frost Protection and Alarms

Draining for Frost Prevention

Recommendations for draining the unit and piping to prevent frost damage.

Alarm Indicators and Causes

Correlating alarm indications with causes and potential solutions.

Technical Specifications

Electrical and Performance Data

Detailed technical data including voltage, load, pressure, and dimensions.

Fault Finding Chart

Troubleshooting Start;Stop Issues

Diagnosing and resolving frequent starts/stops and pump not stopping.

Troubleshooting Alarm Lights

Diagnosing and resolving issues indicated by the 'Alarm' light.

Advanced Fault Diagnosis

Alarm Pattern Troubleshooting

Detailed steps for specific alarm patterns and system conditions.

Further Information and Support

Resources for additional technical details and customer support.

Product Disposal Guidelines

Guidelines for the proper disposal of the product and its components.

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