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Quincy QSI-120 - User Manual

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QSI-90/120/140
& QGV-20/25/30
Direct Drive 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. 2012200011
December 2012 Edition
Địa ch: 365 QL 51, P. Long Bình Tân, Biên Hòa, Đồng Nai
Đin Thoi: 0888.624.124
Email: maynenkhi.az@gmail.com
Website:maynenkhia-z.com
A-Z COPM

Table of Contents

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Summary

Section I - General Information

Safety Alert Symbols

Identifies hazards and their seriousness using specific symbols.

Safety Precautions

Lists essential safety measures for operating and maintaining the compressor.

Section II - Description

The Compression Cycle

Explains the continuous process of air compression in rotary screw compressors.

Section III - Installation

Relief Valves

Importance and placement of pressure relief valves for system safety.

Compressor Rotation

How to check and ensure correct compressor rotation direction.

Section IV - Operating Procedures

Prior to Starting

Pre-operation checks and safety guidelines.

Starting the Compressor

Step-by-step guide for starting the compressor.

Stopping the Compressor

Procedures for normal and emergency shutdown of the compressor.

Alarm Menu

Explains the alarm menu and different fault conditions.

CALIBRATE

Allows calibration of temperature and pressure sensors.

Section V - Servicing

Preparing for Maintenance or Service

Safety procedures before performing maintenance.

Safety

General safety notices for maintenance personnel.

Maintenance Schedule

Provides a schedule for routine maintenance tasks.

Shaft Seal

Instructions for inspecting and replacing the shaft seal.

Seal Installation

Detailed procedure for installing the new shaft seal and adapter.

Differential Pilot Valve

How to adjust the differential pilot valve for pressure control.

Pressure Setting

How to set the compressor's load and unload pressure points.

Electronic Control

Procedures for replacing the electronic control unit.

Section VI - Compressor Fluids

Fluid Level

How to monitor and maintain the correct fluid level.

Fluid Analysis Program - General

Overview of Quincy's fluid analysis service for optimum drain intervals.

Sampling Procedures

How to collect fluid samples for analysis.

Section VII - Troubleshooting

Failure to Start

Common causes and solutions for compressor startup failures.

Unscheduled Shutdown

Reasons for unexpected shutdowns and corrective actions.

Thermal Overload Relays Tripping

Troubleshooting steps for thermal overload issues.

Low Air Delivery

Causes and solutions for reduced air output.

Low Receiver Pressure

Troubleshooting for low pressure in the receiver tank.

High Receiver Pressure

Troubleshooting for excessively high receiver pressure.

High Discharge Air Temperature and;or High Fluid Injection Temperature

Diagnosing and resolving high temperature issues.

Frequent Air;Fluid Separator Clogging

Causes and solutions for frequent separator clogging.

Frequent Fluid Filter Clogging

Causes and solutions for frequent fluid filter clogging.

Excessive Fluid Consumption

Troubleshooting excessive use of compressor fluid.

Frequent Air Cleaner Clogging

Causes and solutions for frequent air cleaner clogging.

Inlet Valve Not Opening Or Closing In Relation To Air Demand

Troubleshooting inlet valve operation based on air demand.

Compressor Does Not Unload When There Is No Air Demand

Diagnosing why the compressor fails to unload.

Compressor Will Not Time-out Or Shut Down When Unloaded (Auto;Dual Only)

Troubleshooting auto/dual mode shutdown failures.

Excessive Water in Plant Air Distribution System

Diagnosing and resolving water issues in the air system.

Pressure Relief Valve Exhausting

Troubleshooting for pressure relief valves that are exhausting.

Excessive Water Content in Fluid

Addressing excessive water in the compressor fluid.

Summary

Section I - General Information

Safety Alert Symbols

Identifies hazards and their seriousness using specific symbols.

Safety Precautions

Lists essential safety measures for operating and maintaining the compressor.

Section II - Description

The Compression Cycle

Explains the continuous process of air compression in rotary screw compressors.

Section III - Installation

Relief Valves

Importance and placement of pressure relief valves for system safety.

Compressor Rotation

How to check and ensure correct compressor rotation direction.

Section IV - Operating Procedures

Prior to Starting

Pre-operation checks and safety guidelines.

Starting the Compressor

Step-by-step guide for starting the compressor.

Stopping the Compressor

Procedures for normal and emergency shutdown of the compressor.

Alarm Menu

Explains the alarm menu and different fault conditions.

CALIBRATE

Allows calibration of temperature and pressure sensors.

Section V - Servicing

Preparing for Maintenance or Service

Safety procedures before performing maintenance.

Safety

General safety notices for maintenance personnel.

Maintenance Schedule

Provides a schedule for routine maintenance tasks.

Shaft Seal

Instructions for inspecting and replacing the shaft seal.

Seal Installation

Detailed procedure for installing the new shaft seal and adapter.

Differential Pilot Valve

How to adjust the differential pilot valve for pressure control.

Pressure Setting

How to set the compressor's load and unload pressure points.

Electronic Control

Procedures for replacing the electronic control unit.

Section VI - Compressor Fluids

Fluid Level

How to monitor and maintain the correct fluid level.

Fluid Analysis Program - General

Overview of Quincy's fluid analysis service for optimum drain intervals.

Sampling Procedures

How to collect fluid samples for analysis.

Section VII - Troubleshooting

Failure to Start

Common causes and solutions for compressor startup failures.

Unscheduled Shutdown

Reasons for unexpected shutdowns and corrective actions.

Thermal Overload Relays Tripping

Troubleshooting steps for thermal overload issues.

Low Air Delivery

Causes and solutions for reduced air output.

Low Receiver Pressure

Troubleshooting for low pressure in the receiver tank.

High Receiver Pressure

Troubleshooting for excessively high receiver pressure.

High Discharge Air Temperature and;or High Fluid Injection Temperature

Diagnosing and resolving high temperature issues.

Frequent Air;Fluid Separator Clogging

Causes and solutions for frequent separator clogging.

Frequent Fluid Filter Clogging

Causes and solutions for frequent fluid filter clogging.

Excessive Fluid Consumption

Troubleshooting excessive use of compressor fluid.

Frequent Air Cleaner Clogging

Causes and solutions for frequent air cleaner clogging.

Inlet Valve Not Opening Or Closing In Relation To Air Demand

Troubleshooting inlet valve operation based on air demand.

Compressor Does Not Unload When There Is No Air Demand

Diagnosing why the compressor fails to unload.

Compressor Will Not Time-out Or Shut Down When Unloaded (Auto;Dual Only)

Troubleshooting auto/dual mode shutdown failures.

Excessive Water in Plant Air Distribution System

Diagnosing and resolving water issues in the air system.

Pressure Relief Valve Exhausting

Troubleshooting for pressure relief valves that are exhausting.

Excessive Water Content in Fluid

Addressing excessive water in the compressor fluid.

Quincy QSI-120 Specifications

General IconGeneral
BrandQuincy
ModelQSI-120
CategoryAir Compressor
LanguageEnglish

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