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Quincy Compressor QSI 370 User Manual

Quincy Compressor QSI 370
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 370 Specifications

General IconGeneral
ModelQSI 370
TypeRotary Screw
Phase3
Voltage460V
Motor Speed1800 RPM
Sound Level76 dBA
Pump TypeRotary Screw
Drive TypeDirect Drive
Max Pressure125 PSI
Operating Pressure100-125 psig

Summary

Section I - General

Standard Warranty

Details the warranty terms, coverage, and exclusions for Quincy compressors and parts.

Safety Alert Symbols

Explains the meaning and severity of different safety symbols used in the manual.

Safety Precautions

Lists essential safety measures for operating and maintaining the compressor.

Section III - Installation

Relief Valves

Explains the purpose and importance of properly sized and installed pressure relief valves.

Section IV - Operating Procedures

Prior to Starting

Essential checks and preparations required before operating the compressor for the first time.

Starting the Compressor

Step-by-step guide on how to safely start the compressor and what to observe during initial operation.

Setpoint menu

Explains how to set and modify pressure bands and other operational parameters.

Week timer menu

Guides on programming time-based start/stop commands and changing pressure bands for the compressor.

Power$ync control mode

Describes the mode that reduces compressor capacity in steps for energy saving.

Section V - Maintenance or Service Preparation

Important Maintenance Requirements

Outlines critical procedures for safely preparing the compressor for maintenance or service.

Section VI - Servicing

Safety

General safety procedures and precautions for service personnel working on the compressor.

Section VII - Compressor Fluids

Fluid Analysis Program - General

Explains Quincy's fluid analysis service for optimizing drain intervals and machine protection.

Fluid Parameters

Tables detailing the properties and acceptable ranges for QuinSyn PG, XP, and Plus fluids.

Section VIII - Service Adjustments

Differential Pilot Valve

Instructions for adjusting the differential pilot valve to set modulation pressure.

Pressure Switch

Guidance on adjusting the pressure switch for compressor loading and unloading points.

Drive Coupling Alignment

Procedures for checking and correcting coupling alignment between the compressor and motor for optimal bearing life.

Section IX - Troubleshooting

Failure to Start

Lists common causes for the compressor failing to start and their corrective actions.

Unscheduled Shutdown

Identifies reasons for unexpected compressor shutdowns and how to resolve them.

Low Air Delivery

Discusses causes for reduced air output and troubleshooting steps.

Low Receiver Pressure

Explains potential issues causing low pressure in the receiver and their solutions.

High Discharge Air Temperature and/or High Fluid Injection Temperature

Addresses causes of overheating and fluid temperature issues and their remedies.

Frequent Air/Fluid Separator Clogging

Explains common reasons for separator clogging and how to fix them.

Frequent Fluid Filter Clogging

Identifies causes for frequent fluid filter clogging and solutions.

Excessive Fluid Consumption

Discusses potential causes for high fluid consumption and troubleshooting steps.

Frequent Air Cleaner Clogging

Identifies reasons for air cleaner clogging and how to resolve them.

Inlet Valve Not Opening Or Closing In Relation To Air Demand

Addresses issues with the inlet valve's response to air demand and how to correct them.

Compressor Does Not Unload When There Is No Air Demand

Troubleshooting steps when the compressor fails to unload during periods of no air demand.

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

Explains why the compressor might not time out or shut down when unloaded in Auto/Dual mode.

Section X - Maintenance Schedule

Maintenance Schedule

Provides a schedule of recommended maintenance tasks based on time intervals.

Important Requirements for New Installation

Important Requirements for New Installation

Provides a final checklist for ensuring safe installation and operation of the compressor package.

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