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Quincy Compressor QSI 500 User Manual

Quincy Compressor QSI 500
142 pages
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THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING LEAD,
WHICH IS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER
AND BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. FOR MORE
INFORMATION GO TO WWW.P65WARNINGS.CA.GOV
QSI Series
Fixed Speed Rotary Screw Air Compressors
Instruction Manual
This manual contains important safety information and should be
made available to all personnel who operate and/or maintain this
product. Carefully read this manual before attempting to operate or
perform maintenance on this equipment.
Manual No. 2012203803
August 2018 Edition
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Quincy Compressor QSI 500 Specifications

General IconGeneral
BrandQuincy Compressor
ModelQSI 500
CategoryAir Compressor
LanguageEnglish

Summary

Section I - General

Standard Warranty

Details the warranty terms and conditions for Quincy compressors and their parts.

Safety Alert Symbols

Explains the meaning of DANGER, WARNING, CAUTION, and NOTICE symbols used in the manual.

Safety Precautions

Lists essential safety measures to be observed during operation and maintenance of the compressor.

Spare Parts Ordering Information

Provides guidance on ordering genuine Quincy replacement parts to maintain equipment.

Serial/Model Identification Plate

Explains the location and importance of the machine's model and serial number for communication.

Section II - Description

General Description

Provides an overview of the QSI compressors, their construction, and key components.

The Compression Cycle

Details the continuous process of air intake, compression, and discharge in rotary screw compressors.

Air Flow

Describes the path of air through the compressor system from inlet to service connection.

Capacity Control System

Details how the compressor regulates air delivery based on system demand.

Safety Sensors

Describes the high air temperature (HAT) sensors and their role in unit protection.

Section III - Installation

Relief Valves

Details on the purpose, sizing, and correct placement of pressure relief valves for system safety.

Section IV - Operating Procedures

Prior to Starting

Checklist of essential steps to perform before the initial startup of the compressor.

Starting the Compressor

Step-by-step guide for safely starting the compressor and monitoring its initial operation.

Stopping the Compressor

Procedures for normal and emergency shutdown of the compressor unit.

Control panel

Identifies and describes the functions of the main components of the compressor's control panel.

Section V - Maintenance or Service Preparation

Important Maintenance Requirements

Crucial procedures to follow for maximum safety when preparing for maintenance or service.

Section VI - Servicing

Safety

General safety procedures and precautions for service personnel working on compressors.

Section VIII - Service Adjustments

Differential Pilot Valve

Procedure for adjusting the differential pilot valve to set the desired modulation pressure.

Pressure Switch

Instructions for adjusting the pressure switch for compressor load and unload points.

Section IX - Troubleshooting

Start-Up and Operation Issues

Identifies probable causes and corrective actions for failures during compressor startup or operation.

Air Delivery and Pressure Problems

Troubleshooting steps for issues related to low air delivery, low/high receiver pressure.

Temperature and Fluid Issues

Diagnosing problems related to high temperatures, fluid contamination, and separator clogging.

Control System and Valve Issues

Addresses problems with inlet valves, unloaders, and other control system components.

Section X - Maintenance Schedule

Maintenance Schedule

Provides recommended maintenance intervals and actions for daily, monthly, and yearly checks.

Important Requirements for New Installation

Important Requirements for New Installation

Final inspection checks for electrical and piping installations before initial compressor startup.

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