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Grundfos ALPHA2 15-55SF SS 115 User Manual

Grundfos ALPHA2 15-55SF SS 115
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GRUNDFOS INSTRUCTIONS
ALPHA2
Variable-speed circulators with Auto
ADAPT
Installation and operating instructions
3191277
Listed
Conforms to ANSI/UL Std. 778
Certified to CAN/CSA Std. C22.2 No. 108
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Grundfos ALPHA2 15-55SF SS 115 Specifications

General IconGeneral
ModelALPHA2 15-55SF SS 115
CategoryWater Pump
TypeCirculator Pump
Power Supply115V
MaterialStainless Steel
Operating Temperature Range36°F to 230°F
Maximum Operating Pressure145 psi
Protection ClassIP42
Head Range0-18 ft
Maximum Head18 ft

Summary

Limited Warranty

General Information

Document Symbols and Warnings

Explains hazard symbols (DANGER, WARNING, CAUTION) and their meanings for safety.

Receiving the Product

Product Inspection

Guides on checking the received product against order and verifying voltage/frequency.

Scope of Delivery

Lists items included in the product box for verification.

Installing the Product

Quick Installation Tips

Advice for efficient system setup and pump operation during installation.

Mechanical Installation

Details pipe connection, flushing, check valve, and pump orientation.

Changing the Power Head Position

Step-by-step guide for rotating the pump's power head for optimal installation.

Insulating the Pump Housing

Instructions on reducing heat loss using insulating shells for energy efficiency.

Electrical Connection Procedures

Safety guidelines and steps for making electrical connections to the pump.

Line Cord Electrical Connection

Specific instructions for connecting the pump using its supplied power cord.

Terminal Box Electrical Connection

Wiring procedure for connecting the pump via its terminal box.

Starting Up the Product

Venting and First Startup Procedures

Guides on system venting and initial pump power-up.

Product Introduction

Product Description and Features

Overview of the ALPHA2 circulator's features, benefits, and control panel.

Suitable Applications

Lists recommended applications for the ALPHA2 pump in heating and cooling systems.

Pumped Liquids and Compatibility

Details compatible liquids, temperature limits, and cautions for various fluids.

Glycol Mixture Guidelines

Information on using glycol mixtures, including concentration and maintenance.

Product Identification

Nameplate Information

Explains the meaning of data found on the product's nameplate.

Understanding the Type Key

Deciphers the pump model designation and its encoded specifications.

Compliance and Approvals

Lists certifications and regulatory compliance statements for the product.

Control Functions and Operation

Control Panel Elements Overview

Identifies and explains each component of the pump's control panel.

Display and Indicator Lights

Details the pump's digital display and the meaning of various indicator lights.

Setting Pump Performance Modes

Guides on changing pump settings and selecting operating modes.

Control Mode Selection by Application

Recommends optimal control modes for different types of heating and cooling systems.

Pump Control Modes

AUTOADAPT, Constant Pressure, and Speed Control

Details AUTOADAPT, constant pressure, constant speed, and manual summer modes.

Hydraulic Performance and Mode Selection

Troubleshooting and Fault Finding

Pump Not Running or No Power

Troubleshooting steps for pump startup issues and lack of operation.

Diagnosing System Noise Issues

Identifies causes and remedies for noise originating within the heating system.

Troubleshooting Pump Noise

Specific steps to diagnose and resolve noise problems originating from the pump itself.

Resolving Insufficient Heat Output

Addresses issues where the pump fails to deliver adequate heat to the system.

Technical Data and Specifications

Operating Conditions and Limits

Details supply voltage, enclosure class, pressure, and temperature limits.

Glycol Mixture and Fluid Handling

Information on glycol concentration, flow indication, and check valve advice.

Performance Curves and Power Usage Data

Details curve conditions and approximate power consumption by speed setting.

Product Disposal Information

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