Grundfos STR2 - User Manual

Shower pumps
SSR2, SSR2 CN, STR2, STR2 CN, SSP, STP, SSN and STN
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Grundfos STR2 Specifications

General

Maximum Operating Pressure	10 bar
Enclosure Class	IP68
Frequency	50 Hz
Protection Class	IP68
Material	Stainless steel

Summary

General Information

Hazard Statements

Overview of hazard symbols and statements used in Grundfos instructions.

Safety Instructions

Electrical Installation Safety

Critical safety guidelines for electrical connections and precautions.

Fault Finding Safety

Safety advice before and during fault finding procedures.

Installation Guide

Pump Positioning

Guidance on selecting the optimal location for pump installation.

Foundation Requirements

Pipework Installation

Instructions and best practices for connecting pipes to the pump.

Cold-Water Storage Tank

Valves and Strainers

Connecting the Pump

Step-by-step instructions for connecting the pump to the system.

Electrical Installation

Electrical Connection Procedure

Detailed steps for connecting the pump's electrical supply.

Power Supply Requirements

Specifies voltage, frequency, and protection for the power supply.

Startup Procedure

Initial System Fill and Flush

Steps for filling the system and flushing out debris before operation.

Universal-Head Pumps

General Description

Dry-Running Protection

Connecting the Pump

Operating Instructions

Technical Data

Fault Finding

Positive-Head Pump Faults

Common issues and remedies for STP, SSP, STR2, SSR2 pump models.

Universal-Head Pump Faults

Common issues and remedies for STN, SSN, STR2 CN, SSR2 CN pumps.

How the Pump Works

Engineers Checklist

Maintenance and Service

Routine Inspection and Cleaning