Quincy Compressor QSI 50 User manual

Oil-injected rotary screw compressors
QSI 50, QSI 60 (Fixed Speed)
QGV 40, QGV 50, QGV 60 (VSD)
Instruction book
Revision Number: 01
Date of Publication: 2017-09
Performance You Demand. Reliability You Trust.

Quincy
Oil-injected rotary screw compressors
QSI 50, QSI 60 (Fixed Speed)
QGV 40, QGV 50, QGV 60 (VSD)
Instruction Book
Original instructions
Copyright Notice
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and
drawings.
No. 2012 2039 28
www.quincycompressor.com

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2012 2039 28 4
PREFACE
Please read the following instructions carefully before start up or performing maintenance in your compressor.
This manual contains important safety information and should be made available to all personnel who operate and/or
maintain this product. Always keep the manual available near the machine.
In all correspondence always mention the compressor type and serial number, shown on the data plate.
The company reserves the right to make changes without prior notice.
Updated instructions books can be found at www.quincycompressor.com/

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2012 2039 28 5
Royal Blue Warranty
Seller warrants products of its own manufacture against defects in workmanship and materials under normal use and
service, as follows:
Packaged Compressors -Twelve (12) months from date of start-up or eighteen (18) months from date of shipment
from the factory, whichever occurs first.
Airend on Packaged Compressors (for service at full-load pressure at or below 150 psig) - Ten years (120 months)
from date of start up (not to exceed 126 months from date of shipment from the factory).
Airend on Packaged Compressors (for service at full-load pressure above 150 psig) –Twelve (12) months from date
of start-up or twenty- four (24) months from date of shipment from the factory, whichever occurs first. Five (5) and ten
(10) year Extended Airend Warranties are available on 150 psig full-load pressure airends.
Air/Fluid Reservoir Tanks -Five years (60 months) from date of start up (not to exceed 66 months from date of
shipment), including parts and labor. In the event of a reservoir tank failure, the parts and labor coverage is limited to
the reservoir tank itself and does not cover the separator element(s) or loss of fluid.
Air and Fluid Heat Exchangers - Five years (60 months) from date of start up (not to exceed 66 months from date of
shipment), including parts and labor for the first twelve (12) months, parts only after twelve (12) months. In the event
of a heat exchanger failure, the parts and labor coverage is limited to the heat exchanger itself and does not cover the
loss of fluid.
Drive Motors -Five years (60 months) from date of start up (not to exceed 66 months from date of shipment),
including parts and labor. Royal Blue warranty does not cover medium voltage (above 575 volt, 3 phase) or customer
specified motors. Before any motor repairs or replacements are performed, the factory must be contacted at the time
of failure in order to approve any further action.
Drive Coupling Elements -Five years (60 months) from date of start up (not to exceed 66 months from date of
shipment), including parts and labor. (Machine must be installed and operated in accordance with the Operator’s
Manual.)
Variable Speed Drives (if applicable) - Five years (60 months) from date of start up (not to exceed 66 months from
date of shipment), including parts & labor for the first year (12 months), parts only for the remainder of the warranty
period. Unit must be installed indoors in a well ventilated environment.
Remanufactured Airend -Twelve (12) months from date of shipment from the factory.
Parts - Ninety (90) days from date of Distributor sale or one (1) year from date of factory shipment.
With respect to products not manufactured by Seller, Seller will, if practical, pass along the warranty of the original
manufacturer.
The terms of coverage for the Royal Blue Warranty are listed below. Failure to follow the terms will invalidate
the Royal Blue Warranty.
AUTHORIZED START-UP REQUIRED:
A properly completed start-up report and the Royal Blue Warranty registration form must be submitted by an
authorized Quincy distributor to the Quincy Compressor Bay Minette office within thirty (30) days of start-up. Start-up
reports must be submitted on QuincyHQ.com.

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GENUINE PARTS AND FLUIDS:
The compressor must be maintained with QuinSyn-PG (8,000 hours maximum), QuinSyn- XP (12,000 hours
maximum), QuinSyn-Plus (8,000 hours maximum) or QuinSyn-F fluid (6,000 hours maximum). Maximum fluid change
intervals are noted per fluid. Actual fluid change interval is to be determined by fluid sampling report, not to exceed
maximum fluid change interval. Fluid samples must be taken every 2,000 hours or as directed by the analysis report.
Only genuine Quincy Compressor maintenance and replacement parts may be used.
Normal rules of warranty apply regardless of coverage length. Inlet valves, fluid pumps and shaft seals are covered by
the standard (1 year) warranty terms and are not included in the Royal Blue Warranty program. The Royal Blue
Warranty is non- transferable.
The customer and/or Quincy Distributor must keep copies of all maintenance records, parts purchases and sampling
reports. The following records will be required for warranty airend replacement and/or warranty claim consideration
and should be submitted to the Quincy Compressor Customer Service Department:
A completed Airend Failure Information form.
A copy of the Royal Blue Warranty Registration/ Agreement form.
Copies of all maintenance logs for the unit.
Proof of purchase of genuine Quincy parts and fluids.
Copies of all fluid analysis reports.
Notice of the alleged defect must be given to Seller in writing with all identifying details including serial number, model
number, type of equipment and date of purchase, within thirty (30) days of the discovery of same during the warranty
period.
Seller’s sole obligation on this warranty shall be, at its option, to repair, replace or refund the purchase price of any
product or part thereof which proves to be defective. If requested by Seller, such product or part thereof must be
promptly returned to Seller, freight collect for inspection.
Seller warrants factory repaired or replaced parts of its own manufacture against defects in material and workmanship
under normal use and service for ninety (90) days or for the remainder of the warranty on the product being repaired,
whichever is longer.
This warranty shall not apply and Seller shall not be responsible nor liable for:
a) Consequential, collateral or special losses or damages;
b) Equipment conditions caused by fair wear and tear, abnormal conditions of use, accident, neglect or misuse of
equipment, improper storage or damages resulting during shipment;
c) Deviation from operating instructions, specifications, or other special terms of sales;
d) Labor charges, loss or damage resulting from improper operation, maintenance or repairs made by person(s)
other than Seller or Seller's authorized service station.
e) Improper application of product.
In no event shall Seller be liable for any claims, whether arising from breach of contract or warranty of claims of
negligence or negligent manufacture, in excess of the purchase price.
Quincy Compressor reserves the right to modify or withdraw this Royal Blue Warranty
program at any time on units not already covered by this ROYAL BLUE WARRANTY
program.

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Table of contents
1Safety Precautions.............................................................................................. 10
1.1 SAFETY ICONS.............................................................................................................................................10
1.2 SAFETY PRECAUTIONS, GENERAL...........................................................................................................10
1.3 SAFETY PRECAUTIONS DURING INSTALLATION....................................................................................11
1.4 SAFETY PRECAUTIONS DURING OPERATION........................................................................................12
1.5 SAFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR..............................................................13
2General Description ............................................................................................ 15
2.1 INTRODUCTION ...........................................................................................................................................15
2.2 AIR AND OIL/FLUID CIRCUIT ......................................................................................................................18
2.3 REGULATING CIRCUIT................................................................................................................................21
2.4 ELECTRICAL SYSTEM.................................................................................................................................22
3Q control............................................................................................................... 25
3.1 PRIOR TO STARTING ..................................................................................................................................25
3.2 STARTING THE COMPRESSOR .................................................................................................................25
3.3 CONTROL PANEL.........................................................................................................................................26
3.4 ICON USED...................................................................................................................................................27
3.5 MAIN SCREEN..............................................................................................................................................30
3.6 CALLING UP MENUS....................................................................................................................................32
3.7 INPUTS MENU..............................................................................................................................................34
3.8 OUTPUTS MENU..........................................................................................................................................36
3.9 COUNTERS...................................................................................................................................................39
3.10 SERVICE MENU............................................................................................................................................42
3.11 SETPOINT MENU .........................................................................................................................................46
3.12 EVENT HISTORY MENU..............................................................................................................................50
3.13 MODIFYING GENERAL SETTINGS.............................................................................................................51

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3.14 INFO MENU...................................................................................................................................................59
3.15 WEEK TIMER MENU.....................................................................................................................................61
4Installation............................................................................................................ 92
4.1 DIMENSION DRAWINGS..............................................................................................................................92
4.2 INSTALLATION PROPOSAL ........................................................................................................................93
5Operating instructions........................................................................................ 99
5.1 INITIAL START-UP........................................................................................................................................99
5.2 BEFORE STARTING...................................................................................................................................102
5.3 STARTING...................................................................................................................................................103
5.4 DURING OPERATION.................................................................................................................................103
5.5 STOPPING ..................................................................................................................................................105
5.6 TAKING OUT OF OPERATION...................................................................................................................106
6Maintenance....................................................................................................... 107
6.1 PREVENTIVE MAINTENANCE SCHEDULE..............................................................................................107
6.2 STORAGE AFTER INSTALLATION............................................................................................................108
6.3 SERVICE KITS............................................................................................................................................109
6.4 DISPOSAL OF USED MATERIAL...............................................................................................................109
7Adjustments and servicing procedures.......................................................... 110
7.1 AIR FILTER..................................................................................................................................................110
7.2 FLUID AND OIL FILTER CHANGE.............................................................................................................111
7.3 OIL SEPARATOR CHANGE .......................................................................................................................113
7.4 COOLERS ...................................................................................................................................................114
7.5 SAFETY VALVES........................................................................................................................................114
7.6 SHAFT SEAL...............................................................................................................................................115
7.7 SHELL/TUBE HEAT EXCHANGER ............................................................................................................117
7.8 FLUID ANALYSIS PROGRAM - GENERAL................................................................................................118
7.9 FLUID SAMPLING PROCEDURE...............................................................................................................119

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8Problem solving................................................................................................. 120
9. Technical Data................................................................................................... 126
9.1 ELECTRIC CABLE SIZE AND FUSES........................................................................................................126
9.2 REFERENCE CONDITIONS AND LIMITATIONS.......................................................................................127
9.3 COMPRESSOR DATA ................................................................................................................................127
Appendix 1: Product Analysis Report..................................................................... 128
Appendix 2: Fluid Parameters.................................................................................. 129

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1 Safety Precautions
1.1 Safety icons
Explanation
Danger for life
Warning
Important note
1.2 Safety precautions, general
General precautions
1. The operator must employ safe working practices and observe all related work safety requirements and
regulations.
2. If any of the following statements does not comply with the applicable legislation, the stricter of the two
shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorized, trained,
specialized personnel. The personnel should apply safe working practices by use of personal protection
equipment, appropriate tools and defined procedures.
4. The compressor is not considered capable of producing air of breathing quality. For air of breathing
quality, the compressed air must be adequately purified according to the applicable legislation and
standards.
5. Prior any maintenance, repair work, adjustment or any other non-routine checks:
Stop the compressor.
Press the emergency stop button.
Switch off the voltage.
Depressurize the compressor.
Lock Out –Tag Out (LOTO):
Open the power isolating switch and lock it with a personal lock.
Tag the power isolating switch with the name of the service technician.
On unit powered by frequency converter, wait 10 min before starting any electrical repair.
Never rely on indicator lamps or electrical door locks before maintenance work, always disconnect
and check with measuring device.
If the machine is equipped with an automatic restart after voltage failure function and if
this function is active, be aware that the machine will restart automatically when the
power is restored if it was running when the power was interrupted!

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6. Never play with compressed air. Do not apply the air to your skin or direct an air stream at people. Never
use the air to clean dirt from your clothes. When using the air to clean equipment, do so with extreme
caution and wear eye protection.
7. The owner is responsible for maintaining the unit in safe operating condition. Parts and accessories shall
be replaced if unsuitable for safe operation.
8. It is prohibited to walk or stand on the unit or on its components.
1.3 Safety precautions during installation
All responsibility for any damage or injury resulting from neglecting these precautions,
or non-observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
Precautions during installation
1. The machine must only be lifted using suitable equipment in accordance with the applicable safety
regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to dwell
or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be kept within safe
limits. Wear a safety helmet when working in the area of overhead or lifting equipment.
2. The unit is designed for indoor use. If the unit is installed outdoors, special precautions must be taken;
consult your supplier.
3. In case the device is a compressor, place the machine where the ambient air is as cool and clean as
possible. If necessary, install a suction duct. Never obstruct the air inlet. Care must be taken to minimize
the entry of moisture at the inlet air.
4. Any blanking flanges, plugs, caps and desiccant bags must be removed before connecting the pipes.
5. Air hoses must be of correct size and suitable for the working pressure. Never use frayed, damaged or
worn hoses. Distribution pipes and connections must be of the correct size and suitable for the working
pressure.
6. In case the device is a compressor, the aspirated air must be free of flammable fumes, vapours and
particles, e.g. paint solvents that can lead to internal fire or explosion.
7. In case the device is a compressor, arrange the air intake so that loose clothing worn by people cannot be
drawn in.
8. Ensure that the discharge pipe from the compressor to the aftercooler or air net is free to expand under
heat and that it is not in contact with or close to flammable materials.
9. No external force may be exerted on the air outlet valve; the connected pipe must be free of strain.
10. If remote control is installed, the machine must bear a clear sign stating: DANGER: This machine is
remotely controlled and may start without warning.
The operator has to make sure that the machine is stopped and depressurized and that the electrical
isolating switch is open, locked and labelled with a temporary warning before any maintenance or repair.
As a further safeguard, persons switching on or off remotely controlled machines shall take adequate
precautions to ensure that there is no one checking or working on the machine. To this end, a suitable
notice shall be affixed to the start equipment.
11. Air-cooled machines must be installed in such a way that an adequate flow of cooling air is available and
that the exhausted air does not recirculate to the compressor air inlet or cooling air inlet.
12. The electrical connections must correspond to the applicable codes. The machines must be earthed and
protected against short circuits by fuses in all phases. A lockable power isolating switch must be installed
near the compressor.
13. In multiple compressor systems, manual valves must be installed to isolate each compressor. Non- return
valves (check valves) must not be relied upon for isolating pressure systems.

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14. Never remove or tamper with the safety devices, guards or insulation fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure must
be protected by a pressure relieving device or devices as required.
15. Piping or other parts with a temperature in excess of 70˚C (158˚F) and which may be accidentally touched
by personnel in normal operation must be guarded or insulated. Other high temperature piping must be
clearly marked.
16. For water-cooled machines, the cooling water system installed outside the machine has to be protected
by a safety device with set pressure according to the maximum cooling water inlet pressure.
17. If the ground is not level or can be subject to variable inclination, consult the manufacturer.
Also consult following safety precautions: Safety precautions during operation and
Safety precautions during maintenance.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment;
hence some statements may not apply to your machine.
1.4 Safety precautions during operation
All responsibility for any damage or injury resulting from neglecting these
precautions, or non-observance of the normal caution and care required for
installation, operation, maintenance and repair, even if not expressly stated, will be
disclaimed by the manufacturer
Precautions during operation
1. Never touch any piping or components of the machine during operation.
2. Use only the correct type and size of hose end fittings and connections. When blowing through a hose or
air line, ensure that the open end is held securely. A free end will whip and may cause injury. Make sure
that a hose is fully depressurized before disconnecting it.
3. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there
is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the remote
start equipment.
4. Never operate the machine when there is a possibility of taking in flammable or toxic fumes, vapors or
particles.
5. Never operate the machine below or in excess of its limit ratings.
6. Keep all bodywork doors shut during operation. The doors may be opened for short periods only, e.g. to
carry out routine checks. Wear ear protectors when opening a door.
7. People staying in environments or rooms where the sound pressure level reaches or exceeds 80 dB(A)
shall wear ear protectors
8. Periodically check that
All guards are in place and securely fastened
All hoses and/or pipes inside the machine are in good condition, secure and not rubbing
No leaks occur
All fasteners are tight
All electrical leads are secure and in good order
Safety valves and other pressure relief devices are not obstructed by dirt or paint

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Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in good repair, free
of wear or abuse.
Air cooling filters of the electrical cabinet are not clogged
9. On water-cooled compressors using open circuit cooling towers, protective measures must be taken to
avoid the growth of harmful bacteria such as Legionella pneumophila bacteria.
10. Do not remove any of, or tamper with, the sound-damping material.
11. Never remove or tamper with the safety devices, guards or insulations fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure shall
be protected by a pressure relieving device or devices as required.
12. Yearly inspect the reservoir. Minimum wall thickness as specified in the instruction book must be
respected. Local regulations remain applicable if they are more strict.
Also consult following safety precautions: Safety precautions during installation and
Safety precautions during maintenance.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment;
hence some statements may not apply to your machine.
1.5 Safety precautions during maintenance or repair
All responsibility for any damage or injury resulting from neglecting these
precautions, or non-observance of the normal caution and care required for
installation, operation, maintenance and repair, even if not expressly stated, will be
disclaimed by the manufacturer.
Precautions during maintenance or repair
1. Always use the correct safety equipment (such as safety glasses, gloves, safety shoes, etc.).
2. Use only the correct tools for maintenance and repair work.
3. Use only genuine spare parts for maintenance or repair. The manufacturer will disclaim all damage or
injuries caused by the use of non-genuine spare parts.
4. All maintenance work shall only be undertaken when the machine has cooled down.
5. A warning sign bearing a legend such as "Work in progress; do not start" shall be attached to the starting
equipment.
6. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there
is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the remote
start equipment.
7. Close the compressor air outlet valve and depressurize the compressor before connecting or
disconnecting a pipe.
8. Before removing any pressurized component, effectively isolate the machine from all sources of pressure
and relieve the entire system of pressure.
9. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions against
toxic vapors of cleaning liquids.
10. Scrupulously observe cleanliness during maintenance and repair. Keep dirt away by covering the parts
and exposed openings with a clean cloth, paper or tape.

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11. Never weld or perform any operation involving heat near the fluid system. Fluid tanks must be completely
purged, e.g. by steam cleaning, before carrying out such operations. Never weld on, or in any way modify,
pressure vessels.
12. Whenever there is an indication or any suspicion that an internal part of a machine is overheated, the
machine shall be stopped but no inspection covers shall be opened before sufficient cooling time has
elapsed; this to avoid the risk of spontaneous ignition of the oil vapor when air is admitted.
13. Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, etc.
14. Make sure that no tools, loose parts or rags are left in or on the machine.
15. All regulating and safety devices shall be maintained with due care to ensure that they function properly.
They may not be put out of action.
16. Before clearing the machine for use after maintenance or overhaul, check that operating pressures,
temperatures and time settings are correct. Check that all control and shut-down devices are fitted and
that they function correctly. If removed, check that the coupling guard of the compressor drive shaft has
been reinstalled.
17. Every time the separator element is renewed, examine the discharge pipe and the inside of the oil
separator vessel for carbon deposits; if excessive, the deposits should be removed.
18. Protect the motor, air filter, electrical and regulating components, etc. to prevent moisture from entering
them, e.g. when steam cleaning.
19. Make sure that all sound-damping material and vibration dampers, e.g. damping material on the
bodywork and in the air inlet and outlet systems of the compressor, is in good condition. If damaged,
replace it by genuine material from the manufacturer to prevent the sound pressure level from increasing.
20. Never use caustic solvents which can damage materials of the air net, e.g. polycarbonate bowls.
21. The drive in this unit contains capacitors that will maintain a high voltage charge after power is removed.
Before performing any maintenance on the compressor package allow at least 5 minutes for the
capacitors to discharge after removing power to the package. Verify that there are no indicator lights or
displays on the drive that are in an on state indicating power is still in the drive before working on the unit.
Remember to always lock out and tag out the power source to the package per OSHA regulations.
Also consult following safety precautions: Safety precautions during installation
and Safety precautions during operation.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment;
hence some statements may not apply to your machine.

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2 General Description
2.1 Introduction
General
QGV 40 up to QGV 60 and QSI 50-60 are single-stage, oil-flooded screw compressors, gearbox driven by an
electric motor. The compressors are available in air-cooled and water-cooled (as factory option) versions. The
compressors are enclosed in sound- insulated bodywork.
The compressors are controlled by Q control.
The Q control and emergency stop button are integrated in the side panel of the electric cubicle. The motor
starters are located inside the Electrical Enclosure.
Front view

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Main components
Main components

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2012 2039 28 17
Reference
Name
AF
Air filter
AR
Oil separator
AV
Location of outlet pipe
Ca
Air cooler
Co
Oil cooler
ER
Control panel
M1
Drive motor
OF
Oil filter
S3
Emergency stop button
Fluid Sample Valve
QGV models are equipped with a fluid sample valve located at the discharge of the fluid filter.
Fluid Sample Valve
Reference
Name
1
Fluid sample valve
Fluid samples should be taken from the sample valve while the compressor is running at normal operating
temperature. For Fluid Analysis Program, refer the section “7.8 - Fluid Analysis Program - General”

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Serial/Model Identification Plate
A model/serial number plate is located on the frame or in the upper right corner of the control panel door.
2.2 Air and oil/fluid circuit
Air circuit
Flow diagram, air circuit

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Reference
Description
A
Intake air
B
Air/oil (fluid) mixture
C
Fluid
D
Wet compressed air
Description
Air drawn through filter (AF) and open inlet valve (IV) into Airend (E) is compressed. A mix of compressed air
and fluid flows into the reservoir (AR) via check valve (CV). The air is discharged through outlet (AV) via
minimum pressure valve (Vp) and air cooler (Ca).
During loaded operation, minimum pressure valve (Vp) keeps the pressure in the separator tank (AR)
above a minimum value, required for lubrication. An integrated check valve prevents the compressed air
downstream the valve from being vented toatmosphere during unloaded operation. When the compressor
is stopped, check valve (CV) and inlet valve (IV) close, preventing compressed air (and oil) to be vented
into the air filter.
Oil/fluid circuit
Flow diagram, oil/fluid circuit

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2012 2039 28 20
Description
In oil separator (AR), most of the fluid is removed from the air/oil mixture by centrifugal action. The
remaining fluid is removed by oil separator (OS). The oil collects in the lower part of oil separator (AR),
which serves as a fluid tank.
The oil system is provided with a thermostatic valve (TV). When the oil temperature is below its set point,
thermostatic valve (TV) shuts off the supply to oil cooler (Co) and the oil cooler is bypassed.
Air pressure forces the fluid from oil separator (AR) through oil filter (OF) and oil stop valve (Vs) to Airend
(AE).
Thermostatic valve (TV) starts opening the supply from cooler (Co) when the fluid temperature has
increased to the set point. At approx. 15 ˚C (27 ˚F) above the set point, all the fluid flows through the oil
cooler
Oil stop valve (Vs) prevents the airend (AE) from flooding with fluid when the compressor is stopped. The
valve is opened by airend outlet pressure when the compressor is started.
Coolingsystem
Cooling system air-cooled compressors
The cooling system comprises air cooler (Ca) and oil cooler (Co)
On air-cooled compressors, the cooling air flow is generated by a fan (FN).