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Grundfos SQ User Manual

Grundfos SQ
20 pages
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SQ, SQE
GRUNDFOS INSTRUCTIONS
Installation and operating instructions

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Grundfos SQ Specifications

General IconGeneral
MotorPermanent magnet motor
MaterialStainless steel
Protection classIP68
Frequency50/60 Hz
ApplicationIrrigation, Pressure boosting
Pumped liquidWater
Power SupplySingle-phase or Three-phase
Operating Temperature0 - 40 °C

Summary

EU Declaration of Conformity

Machinery Directive Compliance

Statement of conformity with EU Machinery Directive (2006/42/EC) and relevant standards.

Low Voltage Directive Compliance

Statement of conformity with EU Low Voltage Directive (2006/95/EC) and relevant standards.

EMC Directive Compliance

Statement of conformity with EU EMC Directive (2004/108/EC) and relevant standards.

General Product Information

Product Overview and Nameplate Data

Provides general information about the SQ/SQE pump and details to be filled on nameplates.

Product Applications and Use Cases

Details intended use and typical applications for SQ and SQE pumps, including special SQE-NE models.

Technical Data

Storage, Frost Protection, and Sound Pressure

Covers storage temperature limits, frost protection measures, and sound pressure level compliance.

Preparation

Motor Liquid Refill Procedure

Step-by-step instructions for refilling the motor with Grundfos motor liquid SML 2.

Positional Requirements

Details requirements for vertical and horizontal pump installation to ensure proper operation.

Liquid Temperatures and Cooling

Explains the importance of liquid temperature for motor cooling and pump lifespan.

Electrical Connection

General Electrical Safety and Connection

Guidelines for electrical connection by authorized personnel, safety precautions, and earth connection.

Motor Protection Features

Notes that the motor incorporates built-in thermal overload protection, requiring no additional external protection.

Motor Connection and Pressure Switch

Explains direct connection to mains and the role of a pressure switch for start/stop control.

Installation

General Installation Safety Precautions

General safety precautions to be observed before starting any installation work on the pump or motor.

Assembly of Pump and Motor Components

Step-by-step guide for assembling the pump part and the motor correctly.

Non-Return Valve Removal Procedure

Procedure for removing the non-return valve if the pump is required without one.

Fitting the Motor Cable Plug

Instructions for fitting the motor cable plug, intended for service personnel only.

Fitting the Cable Guard

Steps for correctly fitting the cable guard to the pump sleeve and cable plug.

Cable Sizing and Selection Guidance

Guidance on selecting the appropriate submersible drop cable cross-section and length based on motor power.

Submersible Drop Cable Connection Kit

Recommendations for joining motor and submersible drop cables using a Grundfos cable termination kit.

Pipework Connection Methods

Instructions for connecting pipes, including considerations for plastic and flanged pipes.

Cable Clip Installation Guidelines

Guidelines for fitting cable clips at specified intervals for secure cable management.

Installation Depth Specifications

Specifies maximum and minimum installation depths for vertical and horizontal pump setups.

Start-up Procedures

Pre-Start Checks and Procedures

Ensures well capacity and pump submersion before initiating pump start-up.

Operation

Minimum Flow Rate Requirement

Specifies the minimum flow rate essential for motor cooling and ensuring pump longevity.

Diaphragm Tank and Pressure Settings

Guidance on selecting diaphragm tank size and setting precharge pressure and pressure switch parameters.

Built-in Motor Protection Features

Details the motor's electronic protection against overload, dry running, voltage fluctuations, and overtemperature.

Maintenance and Service

General Maintenance and Serviceability

Notes that pumps are generally maintenance-free, but service kits and centres are available.

Handling Contaminated Pumps

Procedure for servicing pumps used with hazardous or toxic liquids, including required documentation.

Fault Finding Chart

Troubleshooting: Pump Not Running

Steps to diagnose and resolve issues when the pump fails to start or operate.

Troubleshooting: Pump Runs Without Water

Steps to diagnose and resolve issues when the pump runs but delivers no water.

Troubleshooting: Reduced Capacity

Steps to diagnose and resolve issues when the pump operates at a reduced capacity.

Troubleshooting: Frequent Starts and Stops

Steps to diagnose and resolve issues causing frequent pump start/stop cycles.

Warning Against Megging Procedure

Warns against using the megging procedure due to potential damage to the pump's built-in electronics.

Electricity Supply Checks

Supply Voltage Measurement Procedure

Procedure for measuring supply voltage and identifying potential problems with the electricity supply.

Current Consumption Measurement Procedure

Procedure for measuring current consumption to identify potential faults and load conditions.

Environmental and Disposal Considerations

Environmental Regulations and Handling

Covers environmental regulations for handling hazardous materials during pump operation and maintenance.

Product Disposal Guidelines

Provides guidelines for the proper disposal of the product and its components according to local services.

Nameplate Information

Nameplate Data Fields for Recording

Identifies the fields on the pump and motor nameplates that require user input for identification.

Global Contact Information

Grundfos Worldwide Sales and Service Contacts

List of Grundfos contact details globally for sales inquiries and service support.

Company Information

Trademarks and Copyright Notice

Identifies Grundfos registered trademarks and states the copyright ownership and rights.

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