Xylem LOWARA 15SV User Manual

Installation, Operation
and Maintenance Manual
e-SV Series
Multistage Vertical Pump Unit

Xylem LOWARA 15SV Specifications

General

Materials	Stainless steel
Frequency	50/60 Hz
Inlet/Outlet Size	1 inch
Motor Power	Varies depending on model (e.g., 0.37 kW to 4 kW)
Power	Varies depending on model (e.g., 0.37 kW to 4 kW)
Voltage	230V/400V

Summary

1 Introduction and Safety

1.2 Safety

Covers safety regulations, danger levels, and symbols for user and environmental protection.

1.2.1 Danger levels and safety symbols

Explains hazard levels (DANGER, WARNING, CAUTION, NOTICE) and associated symbols.

2 Handling and Storage

2.1 Handling of the packed unit

2.3 Unit handling

Explains how to properly harness and lift the unit using appropriate equipment.

3 Technical Description

3.3 Names of the main components

3.4 Intended use

3.5 Improper use

Warns against uses not described in the Intended Use section, including hazardous liquids and atmospheres.

4 Installation

4.1 Precautions

Lists essential safety precautions and regulatory compliance before starting installation.

4.2 Mechanical installation

Details requirements for installing the unit on a stable foundation base.

4.2.1 Installation area

4.2.3 Installation on concrete foundation

4.2.4 Fastening of the unit

4.3 Hydraulic connection

Details safety warnings and guidelines for making hydraulic connections.

4.3.1 Guidelines for the hydraulic system

Provides guidance and diagrams for connecting the hydraulic system, including suction and discharge.

4.4 Electrical connection

4.4.1 Ground

Details safety warnings and procedures for proper grounding of the unit.

4.4.2 Guidelines for electrical connection

Provides guidelines for checking electrical leads and power supply requirements.

4.4.3 Guidelines for the control electric panel

4.4.4 Motor guidelines

Electrical connection of the motor

Details the steps for connecting the motor's electrical supply and conductors.

4.4.5 Operation with frequency converter

5 Use and operation

5.1 Precautions

Lists crucial precautions for safe operation, including coupling protection and avoiding dry running.

5.2 Filling - Priming

5.2.1 Positive suction head installation

5.3 Checking the direction of rotation (three-phase motors)

5.4 Start-up

Details the procedure for safely starting the pump unit and checks to perform during operation.

5.5 Stopping

6 Maintenance

6.1 Precautions

Lists essential safety precautions and requirements before performing maintenance.

6.2 Maintenance every 4000 hours of operation, or every year

7 Troubleshooting

7.1 Precautions

Lists safety precautions to observe before attempting to troubleshoot the unit.

7.2 The unit does not start

Identifies causes and remedies for the unit failing to start.

7.3 The differential protection device (RCD) is activated

7.4 The thermal overload protection triggers or the fuses trip

Lists causes and remedies for thermal overload protection triggering or fuses blowing.

7.5 The thermal overload protection triggers

Identifies causes for the thermal overload protection triggering intermittently or after a short run.

7.6 The unit runs but there is little or no flow rate

Provides causes and remedies for low or no flow rate when the unit is running.

7.7 When switched off, the unit turns in the opposite direction

7.8 The unit produces excessive noise and/or vibrations

7.9 The unit starts up too frequently (automatic start/stop)

7.10 The unit never stops (automatic start/stop)

7.11 The unit is leaking

Provides causes and remedies for leaks from the unit, particularly related to the mechanical seal.

7.12 The motor becomes excessively hot

Lists causes and remedies for the motor overheating.

7.13 The frequency converter is in error mode or turned off