Xylem Flygt 3127 - User Manual

Other manuals for Xylem Flygt 3127

Installation, Care And Maintenance22 pages

Questions and Answers

J
John JarvisAug 2, 2025
Why does my Xylem Flygt 3127 Water Pump deliver too little water?
- A
  Amy SullivanAug 2, 2025
  If your Xylem Water Pump delivers too little or no water, several factors could be responsible. The impeller might be rotating in the wrong direction; if it is a 3-phase pump, transpose two phase leads. If it is a 1-phase pump, then contact a sales or authorized service representative. One or more of the valves might be set in the wrong positions; reset them, replace if necessary, and check that all valves are correctly installed according to media flow and open correctly. The impeller could be difficult to rotate by hand, requiring you to clean the impeller and the sump, and check that the impeller is properly trimmed. The pipes might be obstructed, so clean them out to ensure free flow. Lastly, the pipes and joints could be leaking; find the leaks and seal them.
J
Joseph EvansAug 6, 2025
How to troubleshoot a Xylem Flygt 3127 that does not start?
- M
  Matthew MooreAug 6, 2025
  If your Xylem Water Pump does not start, it could be due to a triggered alarm signal on the control panel. Check that the impeller rotates freely, the sensor indicators do not indicate an alarm, and the overload protection is not tripped. Alternatively, if the pump doesn't start automatically but can be started manually, check that the start level regulator is functioning (clean or replace if necessary), all connections are intact, the relay and contactor coils are intact, and the control switch (Man/Auto) makes contact in both positions. Also, check the control circuit and functions.
G
Gerald HughesAug 11, 2025
What to do if my Xylem Water Pump starts and stops rapidly?
- P
  Pamela CampbellAug 11, 2025
  If your Xylem Water Pump starts and stops in rapid sequence, it could be due to back-flow filling the sump to the start level again. Check that the distance between the start and stop levels is sufficient, the non-return valve(s) work properly, and the length of the discharge pipe between the pump and the first non-return valve is sufficiently short. Another cause might be a malfunction in the self-holding function of the contactor. Check the contactor connections, the voltage in the control circuit in relation to the rated voltages on the coil, the functioning of the stop-level regulator, and whether the voltage drop in the line at the starting surge causes the contactor's self-holding malfunction.
J
Jason CarterAug 15, 2025
How to fix low liquid level with Xylem Flygt 3127?
- B
  bvegaAug 15, 2025
  To address a low liquid level issue with your Xylem Water Pump: * Check that the level sensor is set correctly. * Depending on the installation type, add a means for priming the pump, such as a foot valve.
F
Frank JohnsonAug 19, 2025
How to handle wear signs on Xylem Water Pump impeller and casing?
- A
  ariveraAug 19, 2025
  If there are signs of wear on the impeller, pump, and casing of your Xylem Water Pump, replace the worn parts.
L
Laura Smith DVMAug 23, 2025
What to do if my Xylem Water Pump motor protection trips?
- F
  fuentesmaryAug 25, 2025
  If the motor protection trips on your Xylem Water Pump, there are several possible causes. First, the motor protection might be set too low; in this case, set it according to the data plate and cable chart, if applicable. The impeller may be difficult to rotate by hand, requiring you to clean the impeller and the sump, and check that the impeller is properly trimmed. Another cause could be that the drive unit is not receiving full voltage on all three phases. Check the fuses and replace any that have tripped. If the fuses are intact, then notify a certified electrician. Finally, the phase currents may vary or be too high, in which case you should contact a sales or authorized service representative.
N
Nicholas PerezAug 27, 2025
Why doesn't my Xylem Flygt 3127 stop when using a level sensor?
- E
  evan61Aug 28, 2025
  If your Xylem Water Pump does not stop when a level sensor is used, it might be because the pump is unable to empty the sump to the stop level. Check that there are no leaks from the piping and/or discharge connection, the impeller is not clogged, the non-return valve(s) are functioning properly, and the pump has adequate capacity. Another reason could be a malfunction in the level-sensing equipment; clean the level regulators, check their functioning, check the contactor and the control circuit, and replace any defective items. Finally, the stop level may be set too low, so raise it.

Summary

1 Introduction and Safety

Introduction and Safety Terminology

Purpose of manual, safety messages, hazard levels, and symbols.

User Safety and Ex-Approved Products

User safety, site awareness, PPE, and Ex-approved product handling.

Special Hazards and Biological Risks

Covers special hazards like biological risks and related precautions.

Skin;Eye Contact, Environment, Disposal, Spare Parts

Procedures for contact, environmental protection, disposal, and spare parts.

Warranty Information

Refers to the sales contract for warranty information.

2 Transportation and Storage

Delivery Inspection and Transportation Guidelines

Inspecting deliveries and general transportation and lifting precautions.

Lifting Procedures and Temperature Ranges

Detailed lifting instructions and acceptable temperature ranges.

Storage Guidelines

Provides guidelines for product storage, including long-term.

3 Product Description

Product Models, Design, and Intended Use

Lists pump models, types, design, and intended applications.

Spare Parts, Pressure Class, and Experior Concept

Information on spare parts, pressure classes, and product concept.

Sensors and Monitoring Equipment

Details the sensors and monitoring devices integrated with the pump.

Optional Sensors and Data Plate Information

Describes optional sensors and explains data plate contents.

Product Approvals

Lists product approvals for hazardous locations (EN, IEC, FM, CSA).

Product Denomination

Provides instructions on how to read product code characters.

Codes and Parameters Explanation

Explains the meaning of different codes and parameters in product denomination.

4 Installation

Installation Precautions and Hazardous Atmospheres

Safety precautions and rules for installations in hazardous atmospheres.

Fasteners and P-installation Method

Guidelines for fasteners and instructions for P-installation.

S-installation Method

Instructions for installing the pump using the S-installation method.

T-installation Method

Instructions for installing the pump using the T-installation method.

Z-installation Method

Instructions for installing the pump using the Z-installation method.

L-installation Method

Instructions for installing the pump using the L-installation method.

X-installation Method

Instructions for installing the pump using the X-installation method.

Electrical Connection Precautions and General Requirements

Safety precautions and general requirements for electrical connections.

Electrical Requirements, Motor Protection, and Cables

Electrical requirements, motor protection selection, and cable installation.

Grounding and SUBCAB Cable Preparation

Details on grounding and preparing SUBCAB cables.

Connecting Motor Cable to Pump

Steps for connecting the motor cable to the pump.

Connecting Motor Cable to Starter;Monitoring Equipment

Instructions for connecting the motor cable to starter and monitoring equipment.

Cable Charts and General Connection Information

Provides general connection information and cable charts.

Lead Colors;Markings and 3-Phase Connection

Lead codes, markings, and wiring diagrams for 3-phase connections.

1-Phase Connection

Wiring diagrams for 1-phase connections.

Screened Cable and Sensor Connections

Instructions for screened cables and charts for sensor connections.

Sensor Connection Characteristics

Characteristics and values for sensor connections.

T-installation Air Bleeding and Impeller Rotation Check

Procedure to bleed air and check impeller rotation for T-installation.

Impeller Rotation Check

Instructions on how to check the correct impeller rotation.

5 Operation

Operational Precautions

Safety precautions to follow before taking the unit into operation.

Zinc Anode Replacement Estimation and Pump Start-up

Method for estimating anode replacement and pump start-up procedure.

6 Maintenance

Maintenance Precautions

Safety precautions to follow before performing maintenance.

Ground Continuity and Maintenance Guidelines

Ground continuity tests and general maintenance tasks.

Torque Values and Oil Change

Recommended torque values and procedure for changing pump oil.

Emptying the Oil

Steps to safely drain the oil from the pump.

Filling with Oil and Pump Service Overview

Procedure for filling oil and overview of pump service types.

Detailed Pump Inspection

Detailed checklist for inspecting various pump components.

Overhaul, Alarm Service, and Impeller Replacement

Overhaul, alarm handling, and impeller replacement overview.

Impeller Replacement: D Model

Instructions for removing and installing the 'D' type impeller.

Impeller Installation: D Model

Steps to install the 'D' type impeller.

Impeller Replacement: F Model

Instructions for removing and installing the 'F' type impeller.

Impeller Installation: F Model

Steps to install the 'F' type impeller.

Impeller Replacement: M Model

Instructions for removing and installing the 'M' type impeller.

Impeller Installation: M Model

Steps to install the 'M' type impeller.

Impeller Replacement: N Model

Instructions for replacing the 'N' type impeller.

N-Impeller Removal and Installation (P, S)

Steps to remove and install the 'N' impeller for P, S installations.

Adaptive N Impeller Replacement

Instructions for replacing the Adaptive N™ impeller.

Prepare Pump for Removal: T-, Z-installations

Steps to prepare the pump for impeller replacement in T-, Z-installations.

Adaptive N Impeller Removal (P, S, T, Z)

Steps to remove the Adaptive N™ impeller for various installations.

Adaptive N Impeller Installation (P, S, T, Z)

Steps to install the Adaptive N™ impeller for various installations.

7 Troubleshooting

Electrical Troubleshooting and Pump Start-up Issues

Guidelines for electrical issues and pump not starting.

Level Sensor and Pump Stop Issues

Addresses issues where the pump fails to stop with a level sensor.

Rapid Cycling and Motor Protection Trips

Troubleshoots rapid start-stop cycling and motor protection trips.

Low Water Delivery and Other Performance Issues

Identifies causes and remedies for low/no water delivery and other performance faults.

8 Technical Reference

Application Limits and Motor Data

Specifies operational limits and detailed motor specifications.

Xylem Flygt 3127 Specifications

General

Max Flow Rate	Varies by model (up to 400 l/s)
Max Head	Varies by model (up to 100 m)
Impeller Type	Channel, Vortex, or Contrablock
Weight	Varies by model (e.g., 70 kg to 400 kg)
Maximum Submersion Depth	20 m
Material	Cast iron
Protection Class	IP68
Type	Submersible sewage pump
Power	4.5 kW
Liquid Temperature	Max 40°C
Motor Size	4.5 kW
Outlet Size	DN 80
Motor Power	4.5 kW
Frequency	50/60 Hz