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Quincy QP Series - User Manual

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This manual contains important safety information and must be
carefully read in its entirety and understood prior to installation
by all personnel who install, operate and/or maintain this product.
On-line product registration, parts ordering and warranty information is available at www.quincycompressor.com
Manual No. 2022201802
July 2014 Edition
QP
Series
2 Stage Compressors
Instruction Manual
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Summary

Safety First

System Dynamics

Installation

Electrical Supply Requirements

Details on electrical installation, NEC/CEC compliance, voltage verification, and grounding.

Guards

Safety requirements for mechanical guards, ensuring they are fastened and not removed during operation.

Pressure Relief Valves

Purpose of pressure relief valves in preventing system failures and the danger of altering settings.

Pneumatic Circuit Breakers or Velocity Fuses

Safety devices required for hoses exceeding 1/2" to prevent whipping in case of failure.

Pressure Vessels

Compliance requirements for air receiver tanks and other pressure vessels per ASME codes.

Start-Up and Operation

Pre-starting Checklist

Essential checks before connecting power to ensure safe and proper compressor startup.

Initial Starting and Operating

Procedures for reading manual, checking for issues, and starting the compressor for the first time.

Maintenance and Lubrication

Stopping for Maintenance

Procedures for safely stopping the compressor for maintenance, including lockout/tagout and isolation.

Pilot Valve Adjustments

Troubleshooting

Low Discharge Pressure

Common causes for low discharge pressure, including restricted inlet, defective valves, and leaks.

Water in Crankcase (Milky Lubricant)

Causes for milky lubricant, such as insufficient run time or incorrect lubricant grade.

Excessive Vibration

Causes of excessive vibration, such as incorrect speed, loose components, or inadequate foundation.

Low Oil Pressure

Causes of low oil pressure, such as plugged sump strainer, leaks, or low oil level.

Defective Pressure Switch

Causes of pressure switch malfunction, including moisture buildup, diaphragm rupture, or loose connections.

Compressor Overheats

Reasons for overheating, including clogged intake, inadequate ventilation, or incorrect sizing.

Compressor Knocks

Causes of compressor knocks, like insufficient head clearance, worn bearings, or loose pulleys.

Excessive Current Draw

Causes of excessive current draw, like low voltage, wire size, or motor issues.

Failure to Start

Troubleshooting steps for when the compressor fails to start, including power, voltage, and switch issues.

Motor Stalls

Causes of motor stalls, primarily motor overload due to excessive current draw.

Quincy QP Series Specifications

General IconGeneral
BrandQuincy
ModelQP Series
CategoryCompressor
LanguageEnglish

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