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Grundfos SP 77 - User Manual

Grundfos SP 77
28 pages
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SP
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Other languages
http://net.grundfos.com/qr/i/98074911

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Grundfos SP 77 Specifications

General IconGeneral
Pump TypeSubmersible
Max Flow RateVaries depending on the specific model (e.g., SP 77-1, SP 77-2), consult product datasheet
Max HeadVaries depending on the specific model (e.g., SP 77-1, SP 77-2), consult product datasheet
Impeller MaterialStainless steel
Housing MaterialStainless steel
Motor Power30 kW
Discharge Diameter100 mm
Power Consumption30 kW
Frequency50 Hz

Summary

General Information

Hazard Statements

Explains hazard symbols and statements used in the manual for safety awareness.

Handling and Storage

Installation Requirements

Motor Liquid Check and Fill

Procedures for checking and refilling motor liquid for various Grundfos motor types.

Positional Requirements

Guidelines for pump installation orientation and positioning.

Liquid Temperatures and Cooling

Electrical Connection

Motor Protection and Settings

Details on protecting motors and setting protective circuit breakers.

Lightning Protection

Cable Sizing

Single-Phase Motor Connection

Three-Phase Motor Connection

Frequency Converter Operation

CUE Frequency Converter Setup

Mechanical Installation

Cable Connection and Torques

Steps for connecting the submersible drop cable to the motor, including lubrication and torques.

Riser Pipe Installation

Startup and Operation

Startup Procedure

Steps for safely starting the pump, including valve closure and rotation check.

Service Information

SPE Specific Fault Finding

Fault Finding Guide

Pump Operation Faults

Detailed causes and remedies for pump not running, no water, or reduced performance.

Frequent Start;Stop Issues

Causes and remedies for frequent pump starts and stops.

Motor and Cable Checks

Electrical Parameter Checks

Procedures for checking supply voltage, current consumption, winding resistance, and insulation resistance.

Cable Sizing Diagrams

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