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Wilo TWI User Manual

Wilo TWI
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Installation and operating instructions
50-18-002-0817
Wilo TWI & TWU
4” Submersible Well Pumps
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Wilo TWI Specifications

General IconGeneral
TypeSubmersible pump
Frequency50 Hz
MaterialStainless steel
Protection classIP 68
Voltage230/400 V
Motor protectionIntegrated

Summary

Safety

Safety Precautions for the Operator

Essential safety rules for preventing accidents and electrical dangers.

Safety Information for Inspection and Assembly

Guidelines for ensuring safe inspection and installation by qualified personnel.

Transport and Interim Storage

Assembly and Installation

Pump Installation Guidelines

Covers pump orientation, well shaft diameter, and safe lowering procedures.

Electrical Connection

Guidelines for qualified electrical connections and cable length considerations.

Operation

Controlling Rotation in 3-Phase Installations

How to check and correct motor rotation direction for 3-phase pumps.

Correcting Motor Rotation

Swap two phases in the switchbox to fix incorrect motor rotation.

Troubleshooting: Problems, Causes, and Solutions

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