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SPX Hankison DHW 25 User Manual

SPX Hankison DHW 25
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DHW Series
Pressure Swing Desiccant Compressed Air Dryer
Models 7 through 50 scfm
FORM NO.: 3215738 REVISION: 07/2014 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
INSTRUCTION MANUAL
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SPX Hankison DHW 25 Specifications

General IconGeneral
TypeRefrigerated Air Dryer
ModelDHW 25
BrandSPX Hankison
Capacity25 cfm
Air Flow25 cfm
Maximum Inlet Temperature120°F
Inlet Temperature100°F
Voltage115V
Connection Size1/2 inch NPT
Dew Point38°F
Power Supply115V/1ph/60Hz

Summary

Important Information Before Operation

Unpacking and Shipment Inspection

Instructions for checking shipment for visible or concealed loss or damage upon receipt.

General Safety Precautions

Covers precautions for pressurized devices, electrical, and breathing air.

DHW Series Description and Operation

Functionality of Dual Tower Dryers

Explains how dual tower regenerative desiccant dryers work by adsorption and regeneration.

Dryer Operation Cycle

Describes the air flow through the towers and the automatic timing of regeneration cycles.

Air By-Pass Assembly Operation

Details the optional air by-pass assembly and its operation for different models.

Installation Guide

Dimensions, Connections, and Weight

Provides physical specifications and connection details for each model.

Electrical Specifications and Hook-up

Details power requirements per model and the electrical connection diagram.

Dryer Location and System Integration

Guides on optimal placement, aftercooler/separator, and prefilter requirements.

Prefilter and Afterfilter Installation

Instructions for installing prefilters and afterfilters, and their purpose.

Mounting, Piping, and Connections

Covers wall-mounting, piping, electrical connections, and muffler installation.

Operating the Desiccant Dryer

Start-up and System Checks

Initial start-up procedures, leak checks, and system pressurization.

Air Flow Calculations and Operating Conditions

Determining air flows and understanding operating parameters.

Operational Checks and Shutdown

Regular checks, monitoring indicators, and safe shutdown procedures.

Maintenance and Repair

Desiccant Replacement Procedure

Detailed steps for removing and refilling desiccant towers.

Prefilter and Afterfilter Element Replacement

Instructions for replacing filter elements, including safety warnings.

Auto Drain and Repair Parts

Guidance on auto drain replacement and a list of available repair parts.

Warranty Information

Warranty Terms and Conditions

Details the manufacturer's warranty period, coverage, and limitations.

Exclusions and Limitations of Liability

Specifies what is not covered and limits the manufacturer's liability.

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