Quincy Compressor DEFENDER 7-2716 SCFH Instruction manual

Installation, Operation &
Maintenance 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. 65086-1A
June 2005 Edition
7-2716 SCFH
90-200 PSIG

Table of Contents
Section I - General Information
Safety Alert Symbols .......................................................................................................... 1
Introduction ........................................................................................................................ 2
Spare Parts Ordering Information ...................................................................................... 2
Servicing Information ......................................................................................................... 2
Limited Warranty ................................................................................................................ 3
Section II - Description
System Description ............................................................................................................. 4
Nitrogen System Description ............................................................................................. 4
Section III - Safety
Safety ................................................................................................................................. 6
Breathing ............................................................................................................................ 6
Effects & Symptoms of Decreased oxygen Levels ............................................................. 6
Combustion ........................................................................................................................ 7
Pressure .............................................................................................................................. 7
Electrical ............................................................................................................................. 7
Environmental ..................................................................................................................... 7
Section IV - Installation
Installation Instructions ....................................................................................................... 8
Location & Setting of Unit .................................................................................................. 8
Inlet Air Quality .................................................................................................................. 8
Condensate Drain Connections ......................................................................................... 8
Nitrogen Piping Connections ............................................................................................. 8
Compressed Air Inlet Connection ...................................................................................... 8
Pre-start Inspection ............................................................................................................. 9
Initial Start-up & Adjustment .............................................................................................. 9
Nitrogen Purity Sampling Setup ......................................................................................... 9
Section V - Operating Instructions
General Operation ........................................................................................................... 10
Operation of the Unit ....................................................................................................... 10
Analyzer Operation .......................................................................................................... 10
Auto Start/Stop Pilot Valve Operation ............................................................................. 11
Pilot Valve Adjustment Procedure .................................................................................... 11
Flow & Purity Controller Operation .................................................................................. 12
Section VI - Servicing
Routine Maintenance ....................................................................................................... 13
Isolate Unit ....................................................................................................................... 13
Change Filter Elements ~ Premium Filtration – Annually ................................................. 13
Change Carbon ................................................................................................................ 14
Change Filter Elements ~ Standard Filtration – Annually ................................................ 14
Maintenance Schedule ..................................................................................................... 15
Section VII - Spare Parts List
Spare Parts Lists ................................................................................................................ 16
Quincy Compressor-DEFENDER™

Section I - General Information
Safety Alert Symbols
IMPORTANT!
Throughout this manual we have identified key hazards. The following symbols
identify the level of hazard seriousness:
CAUTION!
Identifies hazards or unsafe practices
which could result in minor personal
injury or property damage.
NOTICE!
Identifies important installation,
operation or maintenance information
which is not hazard related.
DANGER!
This symbol identifies immediate
hazards which will result in severe
personal injury, death or substantial
property damage.
WARNING!
This symbol identifies hazards or
unsafe practices which could result in
personal injury, death or substantial
property damage.
Quincy Compressor-DEFENDER™ 1

Section I - General Information
NOTICE!
Every effort has been taken to ensure
complete and correct instructions
have been included in this manual,
however, possible product updates and
changes may have occurred since this
printing. Quincy Compressor reserves
the right to change specifications
without incurring any obligation for
equipment previously or subsequently
sold. Not responsible for typographical
errors.
Introduction
This manual describes the installation,
operating, and maintenance instructions for
the Quincy DEFENDER™ Series nitrogen
generator. Please read and be familiar with
this manual before attempting to operate
the unit. Although this unit is very simple to
operate, the user will be working with high-
pressure gas that must be handled with
caution.
DANGER!
Compressed gas, if handled improperly,
can result in serious or fatal injury.
Spare Parts Ordering Information
Quincy Compressor maintains replacement
parts for all Quincy compressor products.
A repair parts list for the Quincy
DEFENDER™ can be found in the back
of this manual. Order parts from your
Authorized Quincy distributor. Use only
genuine Quincy replacement parts. Failure
to do so may void warranty.
Servicing Information
For questions not addressed in this manual
concerning the operation, maintenance or
repair of the DEFENDER™, please contact
your local Quincy Distributor.
2 Quincy Compressor-DEFENDER™

Section I - General Information
LIMITED WARRANTY
Warranties and Limitation of Liability
Quincy Compressor (“the Company”) warrants
that it will, at it sole discretion, repair or
replace products and/or parts of products sold
that have defects in material or workmanship
provided:
(a) Customer notifies the Company of
any claim of defect in material or
workmanship within fourteen (14)
months from date of shipment from
the Company’s factory or twelve (12)
months from the date of initial operation
of product or installation of a part,
whichever occurs first;
(b) Customer returns the products or parts
with Company authorization, within
fifteen (15) days after such authorization,
with transportation charges prepaid and
shipped pursuant to the Company’s
directions;
(c) The products or parts are found
to be defective because they do
not substantially fulfill performance
requirements set forth in the Company
literature and are manufactured in
accordance with the Company’s
specifications or government
specification when applicable.
This warranty does not extend to products or
parts which:
(a) have been subject to misuse, neglect,
accident, or have been repaired or
altered by, or at the direction of the
Customer without the Company’s
written authorization, or
(b) have not been maintained or installed by
Customer pursuant to the Company’s
guidelines.
The Company shall not be liable for any
expense, liability or loss incurred by Customer
nor for any special, consequential, liquidated
or other damage or penalty suffered by
Customer or anyone else with respect to any
product or part.
The foregoing is in lieu of all other warranties
and the Company makes no other warranty,
expressed or implied, including warranties
of merchantability or of fitness for use which
extend beyond the above warranty.
Quincy Compressor-DEFENDER™ 3

Section II - Description
System Description
The DEFENDER™
Series utilizes a hollow
fi ber semi-permeable
membrane for the
separation of nitrogen
and other gases from a
compressed air stream.
The membranes divide
the air into two streams;
one is essentially nitrogen along with argon
and traces of other inert gasses. The other
stream is oxygen plus carbon dioxide,
hydrogen and other trace gases.
While fast gases such as oxygen, carbon
dioxide and water vapor quickly permeate
the membrane surface, most of the nitrogen
fl ows inside the membrane fi ber as a
separate product stream. Millions of fi bers,
about the size of a human hair, can be
packed into a single module. This provides
a very large membrane surface area that
effi ciently produces large quantities of
nitrogen.
This system is designed
to deliver nitrogen plus
other inert gases at
specifi ed concentration.
Because water vapor
is being permeated out
of the gas stream, the
resulting atmospheric
dew point is -85°F (-
65°C) or below.
The system is designed to operate with
feed air from a plant compressed air
system that has been dried to at least
+40°F (4°C) pressure dew point.
The membrane modules are protected from
hydrocarbons by a highly effi cient, six-step
fi ltration system. This system consists of a
combination of particulate, coalescing fi lters
and carbon adsorption. The result is air
purity with a heavy hydrocarbon carryover
at or below 2 parts per billion.
Nitrogen System Description
Inside the DEFENDER™ nitrogen
generator, the compressed air fi rst
comes into contact with the membrane
pre-fi ltration system. On Standard and
Premium Filtration Packages, this consists
of a coalescing fi lter (#1) followed by an
additional high effi ciency coalescing fi lter
(#2). On Standard Filtration Packages, the
fi nal pre-fi lter is a high effi ciency absorbing
fi lter (#3) which removes vapors and
aerosols.
On Premium Filtration Packages, the
second coalescing fi lter is followed by an
oversized carbon bed that eliminates any
vapor or aerosol that may have been left
and a fi nal dust fi lter (#4), installed after
the carbon bed, removes any charcoal
dust before the air reaches the membrane
bundles.
These fi lters are sized for low system
pressure drop (<2 PSI under maximum
conditions – 200 PSIG). Automatic
condensate drains are installed on each
fi lter to discharge oil and water. These
are joined into a common header and
connected to a single drain connection.
After the pre-fi ltration system, the purifi ed
air enters the separation membrane where
oxygen, water vapor, and trace gases
are removed from the air stream and
discharged to atmosphere via a vent on the
membrane module. The nitrogen product
fl ow and purity is controlled by a manually-
adjustable valve. This valve assures a near
constant fl ow, regardless of fl uctuating
downstream pressure. A non-return check
valve keeps nitrogen in the system from
venting back into the generator when unit is
stopped.
VENT
AIR
AIR
AIR
N
2
N
2
O
2
CO
2
H
2
O
4 Quincy Compressor-DEFENDER™

Section II - Description
For systems with the Auto Start/Stop
installed, an Auto Start/Stop valve and pilot
valve are installed to conserve compressor
usage.
For systems with the built-in N2 analyzer
installed, a 3-way valve and regulator are
installed to supply proper gas fl ow to the
analyzer.
Two pressure gauges are installed on the
front panel. One is for displaying inlet
pressure and the other for system (outlet)
pressure.
Example of a QUINCY DEFENDER™
FILTER #3 -
ACTIVATED CARBON FILTER
(STANDARD) (
NOT SHOWN)
MEMBRANE
FILTER #1 -
COALESCING FILTER
(PREMIUM & STANDARD)
FILTER #2 -
INSTRUMENT GRADE
COALESCING FILTER
(PREMIUM) OR
COALESCING FILTER
(STANDARD)
CARBON BED (PREMIUM)
FILTER #4 -
DUST FILTER (PREMIUM)
DRAIN
P
URITY CONTROLLER
AUTO START/STOP
Quincy Compressor-DEFENDER™ 5

Section III - Safety
Safety
The DEFENDER™ has standard process
plant components which can be hazardous
to individuals unfamiliar with such
equipment. It is the user’s responsibility to
permit only trained and qualified process
plant operators familiar with the handling
of compressed gases to operate this
equipment.
Breathing
This unit is designed to produce 95-99%
pure nitrogen. Nitrogen is a colorless,
odorless gas that will not support life. If
released in an unventilated area, it will
displace the oxygen and can cause injury
or death from asphyxiation. A general
indication of what can potentially occur at
depleted levels of oxygen is given below:
Effects & Symptoms of Decreased
oxygen Levels
15-19%: Decreased ability to work
strenuously. May impair
coordination and may induce
early symptoms in persons with
coronary, pulmonary, or circulatory
problems. Note that at below 15%
oxygen content, personnel will
require assistance from others to
be evacuated from the area.
12-14%: Respiration increases with exertion,
pulse rate increases, coordination
is impaired, and perception and
judgment are also affected.
10-12%: Respiration further increases in
rate and depth, poor judgment,
blueness of lips.
8-10%: Mental failure, fainting,
unconsciousness, ashen face,
blueness of lips, nausea, and
vomiting.
4-6%: Coma in 40 seconds, convulsions,
respiration ceases, cardiac arrest,
death.
6 Quincy Compressor-DEFENDER™

Section III - Safety
CAUTION!
Nitrogen is an asphyxiant. Before
entering an enclosed or poorly
ventilated area containing nitrogen
generation or transmission equipment
and piping, follow all established
safety precautions and procedures.
Nitrogen gas represents an extreme
asphyxiation hazard when not handled
properly. Product gas should not be vented
or otherwise discharged except through the
normal piping system. Appropriate signs
should be placed in the area of the nitrogen
system warning of the hazards.
Combustion
The waste gas (permeate) vented out of
the system is oxygen enriched; it typically
contains 35%-40% oxygen, but can be as
high as 45% oxygen. While oxygen will not
burn, oxygen concentrations above 25%
will support combustion of other materials
much more readily than air. For example,
materials that smolder in air could burn
fiercely in the presence of oxygen-rich
air. It is imperative that vented gas be
discharged only in safe, well-ventilated
areas. If the unit is located in a poorly
ventilated room, the waste gas must
be piped to a ventilated atmosphere for
release.
Pressure
The feed air pressure supplied to the
generator can be as high as 200 psig.
The nitrogen product is then delivered
to the user’s system at a pressure within
10-20 psig of inlet pressure. Normal
precautions for pressurized systems
should be observed during operation,
service, or troubleshooting. Always isolate
components that are to be serviced,
venting pressure before disconnecting lines
or dismantling components.
Electrical
The DEFENDER™ is 100% pneumatic and
does not have electric operations. (The
built-in N2 analyzer uses a replaceable 9
volt battery).
Environmental
The automatic drains for the entire
system are connected to a single header.
These drains release collected oil and
water. Because the condensate from this
equipment contains oil, it must be disposed
of properly.
Quincy Compressor-DEFENDER™ 7

Section IV - Installation
Installation Instructions
The Quincy DEFENDER™ nitrogen
generator is designed for ease of
installation. Since it is a packaged system,
a single-point air inlet, condensate drain,
and an outlet connection for nitrogen gas
(N2 out) need to made before the unit can
be placed into operation (see below for
connection sizes). The nitrogen generator
is mounted on a vertical tank or can be wall
mounted and piped to a receiver tank.
Location & Setting of Unit
The unit should be installed indoors on
a level surface capable of supporting the
static weight of the equipment (with 80 gal.
tank is approx. 305 lbs.). The tank should
be anchored to the floor. The unit should
be installed in a well-ventilated area where
the ambient temperature range will be
between 70° and 104°F (21°-40°C).
Inlet Air Quality
Compressed air should be supplied to
the unit with the air dried to a dew point
temperature lower than the expected
minimum ambient temperature. Typical dew
point from a properly sized refrigerated air
dryer is sufficient (+40°F / 4°C). No water
in liquid form should be present. Inlet
air pressure must be 200 psig or less.
An advanced system of oil and particle
removing filtration is included in the
nitrogen generator, so pre-filtration is not
required.
Condensate Drain Connections
A bulkhead connection is provided on the
bottom of the panel to connect to the floor
drain or other disposal methods to pipe
away oily condensate from the system.
Please note that it is normal to find oil in the
condensate when feed compressor source
is of the lubricated type. (Refer to Safety
- Environmental.) Do not install any valves
past the drain bulkhead.
Nitrogen Piping Connections
The final nitrogen connection is made into
a bulkhead connection on the top of the
panel. No other check valves are required
or recommended beyond this point.
Compressed Air Inlet Connection
An NPT connection is provided for the feed
air inlet (see below for connection sizes).
For systems without an Auto Start/Stop it
is recommended that an isolation valve be
installed at the inlet of the unit. This must
be a gate valve or other slow-opening
valve. On such units, opening the valve
too quickly can cause a rupture of the filter
elements due to rapid pressurization. Unit
failure as a result of an improper valve or
its use are not covered under the warranty.
Connection Sizes
DEFENDER™ Model Feed Air Inlet Outlet Connection
N2GEN 25-70 ¼” NPT ¼” NPT
N2GEN 270-520 ½“ NPT ¼” NPT
N2GEN 870 ½“ NPT ½“ NPT
N2GEN 1800 1“ NPT ½“ NPT
8 Quincy Compressor-DEFENDER™

Section IV - Installation
Pre-start Inspection
Before starting the DEFENDER™, check
the following:
1. If DEFENDER™ is supplied with
a built-in analyzer, install a 9 volt
battery on the back of the analyzer
PCB board and verify it operates by
powering it on.
2. Check that the DEFENDER™ has
been installed according to the
Installation Instructions (above).
3. Ensure the tank is mounted to a
level surface that can support the
DEFENDER™’s weight.
Initial Start-up & Adjustment
Nitrogen System Setup -
1. If the unit is supplied with the built-
in analyzer, turn the analyzer on by
pressing the POWER button. The
analyzer has a 90% response in
the first 6 seconds, allow a total of
30 seconds for 100% response. If
the gas being analyzed has been
flowing over the sensor for more then
30 seconds, then the analyzer will
have already reached the actual gas
percentage. The display will show the
gas content in percent. The analyzer
is calibrated at the factory and will
not need recalibrating unless delivery
time is longer than two weeks. If
calibration is necessary, follow the
instructions below in Nitrogen Purity
Sampling Setup
2. The tank should be purged to remove
oxygen from the tank. This process
can take several hours depending
on the capacity of the unit. A rule of
thumb is to fill the tank and purge two
times to near atmospheric pressure,
allowing the tank to re-pressurize
after each purge. The nitrogen can
be delivered to the system after the
initial purging procedure.
Nitrogen Purity Sampling Setup
1. If the unit is equipped with the built-in
analyzer, make sure the analyzer is
calibrated before using the generated
nitrogen. The analyzer uses the
compressed air coming into the unit
to calibrate the sensor.
2. Make sure the Purity Sampling
System is properly set so that
damage to the oxygen analyzer does
not occur and a proper reading can
be obtained. A regulator with a flow
restrictor orifice is installed before the
oxygen sensor and is preset at the
factory for 7-10 psig. The regulator
controls the flow and pressure of
gas going over the sensor in order
to limit the amount of gas used by
the analyzer and to protect the life
of the sensor. Over pressurizing can
damage the sensor and/or shorten
sensor life.
3. Set the analyzer pressure regulator to
10 psig, by pulling on the yellow knob
and turning clockwise to increase,
and counter-clockwise to decrease,
pressure. This is done before
shipping and should not need to be
adjusted.
4. To calibrate with compressed air,
move the selector switch, below the
analyzer, to the CALIBRATE position.
Let the compressed air flow through
the system until the analyzer’s display
equalizes (takes approx. 30 seconds).
After the display has equalized, adjust
the CAL ADJUST screw as needed
to obtain 20.9% for Oxygen Analyzers
and 79.1% for Nitrogen Analyzers
5. The unit is now calibrated. Move the
selector switch to the MONITOR N2
position.
Quincy Compressor-DEFENDER™ 9

Section V - Operating Instructions
General Operation
Quincy’s DEFENDER™ nitrogen generator
is a complete system that is factory
assembled, tested, and ready for service.
The system requires connection to the
user’s compressed air system as described
in the Installation Instructions.
Operation of the Unit
Once the system is setup and flow rate
adjusted to the desired flow, the system
requires very basic start-up instructions.
1. Pressurize Generator – Using the
slow-opening inlet valve supplied on
the DEFENDER™, slowly pressurize
the generator until pressure has
equalized. Caution: Opening
too quickly can result in rapid
pressurization which can damage the
filters. Failures resulting from rapid
pressurization are not covered by
the warranty. Open the tank inlet
isolation valve.
2. Purge Unit – If the tank is empty
(zero gauge pressure), purge the tank
two times with nitrogen to remove
any ambient air that has accumulated
in the tank while de-pressurized.
Pressurize the tank to within 10 psig
of the inlet air. Once the tank reaches
pressure, close the tank inlet isolation
valve and purge the tank through one
of the outlet valves. Once purged
close the tank’s outlet valve, open
the inlet isolation valve and perform
the purge process again. If the tank
remains pressurized during downtime
(weekends, holidays, etc), this step is
not required.
3. Go Online – After venting, the system
is ready to use nitrogen.
4. Shutting Down – Close inlet isolation
valve, (For systems with the Optional
Auto Start/Stop installed, the unit will
shut off the inlet air flow once the tank
has reached the desired pressure).
It is recommended that the inlet and
outlet tank isolation valves are closed
when the system is shut down for the
day to prevent leaks in hose lines and
instruments from draining the nitrogen
out of the tank.
5. Extended Shut Down - If the system
will be down for an extended period
of time (more than 48 hours) and
the system has a nitrogen holding
tank, close the tank isolation valves
to trap nitrogen in the tank. This will
eliminate the need to purge the tank
when going back on line.
6. On/Off Switch – If the unit is supplied
with the built-in analyzer, press the
POWER button to turn ON or OFF
Analyzer Operation
1. Press the POWER button to turn the
analyzer ON
2. Place selector switch to the desired
gas to be analyzed
3. Allow the reading to settle ( 30
seconds )
4. Press the POWER button to turn the
analyzer OFF
5. Place selector switch into the OFF
position if available
NOTICE!
For Calibration, refer to Initial Startup
– Nitrogen Purity Sampling
10 Quincy Compressor-DEFENDER™

Section V - Operating Instructions
Auto Start/Stop Pilot Valve Operation
The pilot valve is factory set to each user’s
requirement. Only adjust settings if the
requirement was unknown at time of order
or if shop air pressure differs enough from
factory preset to cause the DEFENDER™
to not function properly.
Pilot Valve Adjustment Procedure
There are two screws and two lock nuts on
the pilot valve.
Screw #4 is the cutout pressure (turn
clockwise to increase
and counter clockwise
to decrease). Screw #2
is the cut-in pressure
(turn clockwise
to increase and
counter clockwise to
decrease). Use 1/8”
turn increments when
adjusting screw #2.
Screws #4 & #2 are
interactive to each
other. When one is
adjusted it changes
the setting of the other.
When ever adjusting
the Pilot Valve use
small increments and
keep the differential at 15-20 psig.
NOTICE!
During the adjustment process,
the valve may begin opening and
closing rapidly, this happens when the
differential is outside the designed
pressure range.
If the valve has been disassembled the
cut-in adjustment screw should be fully
screwed in by turning it clockwise until
it bottoms out. Turn the cut-in screw
counterclockwise from the bottomed out
state one half turn. From here proceed by
adjusting screw #4 to desired pressure
and then screw #2. Gradually adjust both
screws, one at a time, until the proper set
points have been reached. Once the set
points are satisfactory, use screws #1 and
#3 to lock the adjustment screws in place.
NOTICE!
The lever at the end opposite the
inlet connection can be used to
manually switch between the open/
closed states.
4
3
2
1
MANUAL LOAD/
UNLOAD LEVER
PILOT
LINE
OUT
AIR IN
Quincy Compressor-DEFENDER™ 11

Section V - Operating Instructions
Flow & Purity Controller Operation
The Flow & Purity Controller maintains the
nitrogen purity by varying the flow out of
the system while under constant pressure
changes.
Flow & Purity Control Operation
procedure
The Flow & Purity Controller is factory set
to the user’s requirement and should not be
changed unless the compressed air going
into the generator varies more than 10 psig
from the air pressure specified at time of
order, or the air pressure was unknown at
time of order.
NOTICE!
If the purity is not at or better
than required and the pressure and
temperature going into the system
are as required, the Flow & Purity
Controller can be adjusted to meet
the purity demand. Adjusting the
Controller will directly affect the flow
of nitrogen out of the system. To get
better purity, flow must decrease. A
lower purity will increase flow.
The controller has a 3/32” hex screw on the
opposite side of the inlet port. Clockwise
will decrease flow, counterclockwise will
increase flow. If an analyzer is installed,
make gradual adjustments, allowing 120
seconds between adjustments to allow for
flow change and the analyzer to settle.
12 Quincy Compressor-DEFENDER™

Section VI - Servicing
Routine Maintenance
Isolate Unit
1. Close inlet and discharge isolation
valves and allow pressure to vent off
the system. On systems with Auto
Start/Stop, if the system is stopped
(Auto Start/Stop active), the manual
override lever on the pilot valve can
be pulled to de-pressurize the system.
Gas will vent through the membrane
exhaust port until the system is
depressurized. In addition the third
filter has a manual drain valve that
can be opened to de-pressurize the
system.
Change Filter Elements ~
Annually
* Perform Element changes only when
system is de-pressurized.
1. Unscrew the housing from the filter
head and drain off any oil in the
housing into a suitable container. Stuff
clean rag into filter bowl to keep unit
clean while changing the elements.
2. Unscrew the locking nut on the
bottom of the element and discard the
element. Replace the element with a
new one of the appropriate grade and
replace the locking nut. Do not over
tighten.
3. Auto drain – Each filter is fitted with
an internal automatic float drain to
carry away condensate (water & oil).
There should only be a small amount
of liquid in the housing. As the level of
the oil increases, the float rises and
discharges liquid from the housing. If
a large amount of oil is found, remove
the auto drain, clean or replace.
4. Replace Filter housing. After
replacing the element, remove the
rag and screw the housing back on to
the filter head. Do not over tighten.
Housing is sealed with an o-ring, so
gently hand-tighten.
5. Repeat this process for all three (3)
filters (1, 2 & 3 - standard/1, 2 & 4 -
premium).
Quincy Compressor-DEFENDER™ 13

Section VI - Servicing
Change Carbon
* Perform Carbon change only when
system is de-pressurized.
a. Disconnect the removable hose
fittings at the top and bottom of the
housing.
b. Loosen the Hex Bushing from the top
of the carbon vessel.
c. Unscrew the Hex Bushing with
screen attached from the top end of
the carbon vessel to allow access
to the carbon. Drain the carbon into
a container and replace with fresh
carbon.
d. Replace Hex bushing with screen
attached using Teflon tape on the
threads.
e. Re-mount the vessel, tighten Hex
Bushing, re-connect the hose fitting
to the top and bottom of the carbon
vessel.
f. The DEFENDER™ is now ready to
put back on line.
g. Once pressurized, check for leaks
at the inlet and outlet of the Carbon
Vessel.
14 Quincy Compressor-DEFENDER™

Section VI - Servicing
Maintenance Schedule
PERIODICALLY/DAILY
(8 HOURS MAXIMUM):
CHECK FOR AIR AND NITROGEN LEAKS. TIGHTEN OR RETAPE
FITTINGS AS NECESSARY.
CHECK THAT THE INLET PRESSURE IS AS ESTABLISHED UPON
SETUP OF THE EQUIPMENT
WEEKLY: CLEAN UNIT AS NECESSARY.
CALIBRATE ANALYZER (IF EQUIPPED)
EVERY 3 MONTHS: CHECK OPERATION OF ALL SAFETY RELIEF VALVES
ANNUALLY (OR AT
8000 HOURS):
REPLACE ALL FILTER ELEMENTS ON THE UNIT.
CHANGE THE CARBON IN THE CARBON BED.
ANALYZER’S SENSOR WILL NEED REPLACING EVERY 2-3 YEARS*
NOTICE!
*The sensor’s life will decrease faster with larger percentages of oxygen running
over it. Keep Selector switch on N2 OUT or OFF (if equipped) whenever it is not
being calibrated.
NOTICE!
Failure to follow these maintenance and service recommendations may adversely
affect your warranty.
Quincy Compressor-DEFENDER™ 15

Section VII - Spare Parts List
DEFENDER™ N2GEN 25-70 PREMIUM FILTRATION
QTY PART # DESCRIPTION
1 CSNE-00030 COALESCING PRE-FILTER ELEMENT NO. 1, 1 MICRON, 0.1 PPM
1 CXNE-00030 COALESCING PRE-FILTER ELEMENT NO. 2, 0.01 MICRON, 0.001 PPM
1 CSNE-00030 DUST FILTER ELEMENT NO. 4, 1 MICRON, 0.1 PPM
1.6# QBM-00507-1 AIR SEPARATION GRADE CARBON (1.6 LBS.)
1 QVA-03028 VALVE, FLOW/PURITY CONTROLLER, 53 SCFH
1 CSNT-00030 COALESCING PRE-FILTER NO. 1 COMPLETE
1 CXNT-00030 COALESCING PRE-FILTER NO. 2 COMPLETE
1 CSNT-00030 DUST FILTER NO. 4 COMPLETE
DEFENDER™ N2GEN 25-70 STANDARD FILTRATION
QTY PART # DESCRIPTION
1 CSNE-00030 COALESCING PRE-FILTER ELEMENT NO. 1, 1 MICRON, 0.1 PPM
1 CXNE-00030 COALESCING PRE-FILTER ELEMENT NO. 2, 0.01 MICRON, 0.001 PPM
1 ACNE-00030 ADSORBING PRE-FILTER ELEMENT NO. 3, 0.01 MICRON, 0.003 PPM
1 QVA-00148 ASME SAFETY VALVE, 1/4”, 200 PSIG
1 QVA-03137 CHECK VALVE, 1/4”
2 QGM-00775 PRESSURE GAUGE, 0-300 PSIG, 2.5” DIA., PANEL MOUNT
1 QRG-02666 MEMBRANE, NITROGEN
1 QVA-00085 NEEDLE VALVE, FLOW/PURITY CONTROLLER, 1/4”
1 CSNT-00030 COALESCING PRE-FILTER NO. 1 COMPLETE
1 CXNT-00030 COALESCING PRE-FILTER NO.2 COMPLETE
1 ACNT-00030 ADSORBING PRE-FILTER NO. 3 COMPLETE
DEFENDER™ N2GEN 270-520 PREMIUM FILTRATION
QTY PART # DESCRIPTION
1 CSNE-00030 COALESCING PRE-FILTER ELEMENT NO. 1, 1 MICRON, 0.1 PPM
1 CXNE-00030 COALESCING PRE-FILTER ELEMENT NO. 2, 0.01 MICRON, 0.001 PPM
1 CSNE-00030 DUST FILTER ELEMENT NO. 4, 1 MICRON, 0.1 PPM
5.5# QBM-00507-5 AIR SEPARATION GRADE CARBON (5.5 LBS.)
1 QVA-03013 VALVE, FLOW/PURITY CONTROLLER, 635 SCFH
1 CSNT-00030 COALESCING PRE-FILTER NO. 1 COMPLETE
1 CXNT-00030 COALESCING PRE-FILTER NO. 2 COMPLETE
1 CSNT-00030 DUST FILTER NO. 4 COMPLETE
DEFENDER™ N2GEN 270-520 STANDARD FILTRATION
QTY PART # DESCRIPTION
1 CSNE-00030 COALESCING PRE-FILTER ELEMENT NO. 1, 1 MICRON, 0.1 PPM
1 CXNE-00030 COALESCING PRE-FILTER ELEMENT NO. 2, 0.01 MICRON, 0.001 PPM
1 ACNE-00030 ADSORBING PRE-FILTER ELEMENT NO. 3, 0.01 MICRON, 0.003 PPM
1 QVA-00148 ASME SAFETY VALVE, 1/4”, 200 PSIG
1 QVA-03137 CHECK VALVE, 1/4”
2 QGM-00775 PRESSURE GAUGE, 0-300 PSIG, 2.5” DIA., PANEL MOUNT
1 QRG-02700 MEMBRANE, NITROGEN
1 QVA-00085 NEEDLE VALVE, FLOW/PURITY CONTROLLER, 1/4”
1 CSNT-00030 COALESCING PRE-FILTER NO. 1 COMPLETE
1 CXNT-00030 COALESCING PRE-FILTER NO.2 COMPLETE
1 ACNT-00030 ADSORBING PRE-FILTER NO. 3 COMPLETE
16 Quincy Compressor-DEFENDER™