Ensure that the operator reads and understands the
decals and consults the manuals before maintenance
or operation.
Ensure that the Operation and Maintenance manual
is not removed permanently from the machine.
Ensure that maintenance personnel are adequately
trained, competent and have read the Maintenance
Manuals.
TM
C.C.N. : 54731245
DATE : DECEMBER 2007
REV. : J
AIR COMPRESSOR GROUP
BONDED WARRANTY & REGISTERED START UP
WARRANTY
The Company warrants that the equipment manufactured by it and delivered hereunder will be free of defects
in material and workmanship for a period of twelve months from the date of placing the Equipment in operation
or eighteen months from the date of shipment from the factory, whichever shall first occur. The Purchaser shall
be obligated to promptly report any failure to conform to this warranty, in writing to the Company in said period,
whereupon the Company shall, at its option, correct such nonconformity, by suitable repair to such equipment or,
furnish a replacement part F.O.B. point of shipment, provided the Purchaser has stored, installed, maintained and
operated such Equipment in accordance with good industry practices and has complied with specific recommendations
of the Company. Accessories or equipment furnished by the Company, but manufactured by others, shall carry whatever
warranty the manufacturers have conveyed to the Company and which can be passed on to the Purchaser. The Company
shall not be liable for any repairs, replacements, or adjustments to the Equipment or any costs of labor performed by the
Purchaser or others without Company‘s prior written approval.
The effects of corrosion, erosion and normal wear and tear are specifically excluded. Performance warranties are
limited to those specifically stated within the Company‘s proposal. Unless responsibility for meeting such performance
warranties are limited to specified tests, the Company‘s obligation shall be to correct in the manner and for the period of
time provided above.
THE COMPANY MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER, EXPRESSED OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE HEREBY DISCLAIMED.
Correction by the Company of nonconformities whether patent or latent, in the manner and for the period of time
provided above, shall constitute fulfillment of all liabilities of the Company for such non conformities whether based on
contract, warranty negligence, indemnity, strict liability or otherwise with respect to or arising out of such Equipment.
The purchaser shall not operate Equipment which is considered to be defective, without first notifying the Company in
writing of its intention to do so. Any such use of Equipment will be at Purchaser‘s sole risk and liability.
Note that this is Ingersoll Rand standard warranty. Any warranty in force at the time of purchase of the compressor or
negotiated as part of the purchase order may take precedence over this warranty.
1.0 CONTENTS
CONTENTS PAGE CONTENTS PAGE
1.0 CONTENTS 1
2.0 FOREWORD 2
3.0 ABBREVIATIONS & SYMBOLS 4
4.0 PURCHASE ORDER DETAILS 5
5.0 SAFETY 6
5.1 SAFETY INSTRUCTIONS 6
5.2 SAFETY PRECAUTIONS 6
5.3 TEXT DECALS 9
5.4 GRAPHIC FORM AND MEANING OF ISO
SYMBOLS 13
6.0 RECEIPT / HANDLING 18
6.1 RECEIPT 18
6.2 UNPACKING AND HANDLING 18
7.0 INSTALLATION 19
7.1 LOCATION IN PLANT 19
7.2 DISCHARGE AND CONDENSATE PIPING
20
9.6 OPERATOR SETPOINTS 71
9.7 OPTIONS 73
9.8 SENSOR CALIBRATION 74
9.9 ALARM HISTORY 75
9.10 CLOCK FUNCTIONS 75
9.11 ENERGY STATUS MESSAGES 76
9.12 WARNINGS 77
9.13 SERVICE WARNINGS 77
9.14 INITIAL CHECK ALARMS: 77
9.15 ALARMS 78
10.0 MAINTENANCE 79
10.1 MAINTENANCE PROMPTS 79
10.2 MAINTENANCE CHART 80
10.3 MAINTENANCE PROCEDURES 81
10.4 ROUTINE MAINTENANCE 83
11.0 FAULT FINDING 91
7.3 ELECTRICAL 21
7.4 WATERCOOLED UNITS 23
7.5 SEA WATERCOOLED UNITS SELECTED
UNITS ONLY 25
Machine models represented in this manual may be
used in various locations worldwide. Machines sold and
shipped into European community countries requiresthat
the machine display the EC Mark and conform tovarious
directives. In such cases, the design specification of
this machine has been certified ascomplying with EC
directives. Any modification to any part is absolutely
prohibited and would result in the CEcertification and
marking being rendered invalid.
The contents of this manual are considered to be
proprietary and confidential to Ingersoll Rand and should
not be reproduced without the prior written permission
of Ingersoll Rand.
Nothing contained in this document is
intended to extend any promise, warranty or
representation,expressed or implied, regarding the
Ingersoll Rand products described herein. Any such
warranties or other terms and conditions of sale of
products shall be in accordance with the standard terms
and conditions of sale for such products, which are
available upon request.
This manual contains instructions and technical
data to cover all routine operation and scheduled
maintenance tasks by operation and maintenance staff.
Majoroverhauls are outside the scope of this manual
and should be referred to an authorized
Ingersoll Rand service department.
All components, accessories, pipes and connectors added
to the compressed air system should be:
of good quality, procured from a reputable manufac-
•
turer and, wherever possible, be of a type approved
by Ingersoll Rand.
clearly rated for a pressure at least equal to the ma-
•
chine maximum allowable working pressure.
compatible with the compressor lubricant/coolant.
•
accompanied with instructions for safe
•
installation,operation and maintenance.
Ingersoll Rand reserves the right to make changes and
improvements to products without notice and without
incurring any obligation to make such changes or add
such improvements to products sold previously.
Details of approved equipment are available from Ingersoll
Rand Service departments.
This machine has been designed and supplied for
use only in the following specified conditions and
applications:
Compression of normal ambient air containing no
•
known or detectable additional gases, vapors or
particles
Operation within the ambient temperature range
•
specified in the GENERAL INFORMATION section of
this manual.
IF IN DOUBT CONSULT SUPERVISION.
The company accepts no responsibility for errors in
translation of this manual from the original English
version.
The design of this Compressor package and certain
features within it are covered by patents held by
Ingersoll Rand and patents pending
SSR ULTRA COOLANT is a registered trademark of
Ingersoll Rand Company USA.
INTELLISYS is a registered trademark of Ingersoll Rand
Company USA.
HPM™, HYBRID PERMANENT MAGNET™ and HPM
Logo are trade marks registered by MOTEURS LE-ROYSOMER
The use of the machine in any of the situation types listed in table 1:−
Is not approved by Ingersoll Rand,
a)
May impair the safety of users and other persons, and
b)
May prejudice any claims made against Ingersoll Rand.
c)
TABLE 1
WARNING − NOT PERMITTED
Use of the machine to produce compressed air for:
direct human consumption
a)
indirect human consumption.
b)
Use of the machine outside the ambient temperature range specified in the GENERAL INFORMATION SECTION
of this manual.
Use of the machine where there is any actual or foreseeable risk of hazardous levels of flammable gases or
vapors.
THIS MACHINE IS NOT INTENDED AND MUST NOT BE USED IN POTENTIALLY EXPLOSIVE ATMOSPHERES,
INCLUDING SITUATIONS WHERE FLAMMABLE GASES OR VAPOURS MAY BE PRESENT.
Use of the machine fitted with non Ingersoll Rand approved components.
Use of the machine with safety or control components missing or disabled.
Connection to an electrical supply of incorrect voltage and/or frequency.
WARNING
The use of repair parts other than those included within the Ingersoll Rand approved parts list may create
hazardous conditions over which Ingersoll Rand has no control. Therefore Ingersoll Rand cannot be held
responsible for equipment in which non−approved repair parts are installed.
WARNING
The motor rotor contains a powerful magnetic field. This field can effect the operation of digital devices such
as watches, mobile phones etc. Assembly or handling of the rotor should not be attempted by personnel with
cardiac pacemakers, defibrillators or other implanted electronic medical device.
WARNING
This compressor contains a variable frequency drive. When it is switched off and the motor is stopped, the
internal capacitors store a potentialy lethal high voltage. DO NOT REMOVE THE DRIVE COVER or attempt any
work on the drive unless trained. There are no user serviceable items behind the cover.
WARNING
The compressor can operate in a pressurised shutdown mode. If the compressor stops automatically, the
airend, separator tank and oil system can contain high pressure air. This can be relieved by pressing the
emergency stop button and can be verified by unscrewing the coolant fill plug which has a vent hole through
which any residual pressure will be vented. Downstream of the separator tank may still contain system
pressure which must also be vented.
NOTICE
The manual is intended for worldwide use and contains both metric and imperial data where required.
Ingersoll Rand Company reserves the right to make changes or add
improvements without notice and without incurring any obligation
to make such changes or add such improvements to products sold
previously.
No. of units on order: ___________________________________________
Customer Order No: ____________________________________________
Ingersoll Rand Co. Order No _____________________________________
For ready reference:
Record the serial number and model number of your unit here.
Serial Number: ________________________________________________
Model Number: _______________________________________________
Safety instructions in the operators manual are bold−faced for
emphasis. The signal words DANGER, WARNING and CAUTION are
used to indicate hazard seriousness levels as follows.
Ensure that the operator reads and understands the
decals and consults the manuals before maintenance or
operation.
DANGER
Indicates the presence of a hazard which WILL
cause serious injury, death or property damage, if
ignored.
WARNING
Indicates the presence of a hazard which CAN
cause serious injury, death or property damage, if
ignored.
5.2 SAFETY PRECAUTIONS
General Information
Ensure that the Operation and Maintenance manual, and
the manual holder, are not permanently removed from
the machine.
Ensure that maintenance personnel are adequately
trained, competent and have read the Maintenance
Manuals.
CAUTION
Indicates the presence of a hazard which WILL or
can cause injury or property damage, if ignored.
NOTICE
Indicates important set–up, operating or
maintenance information.
Compressed air and electricity can be dangerous. Before
undertaking any work on the compressor, ensure that the
electrical supply has been isolated, locked off, tagged and
the compressor has been relieved of all pressure.
Make sure that all protective covers are in place and that
the canopy/doors are closed during operation.
Installation of this compressor must be in accordance with
recognized electrical codes and any local Health and Safety
Codes.
Use only safety solvent for cleaning the compressor and
auxiliary equipment.
Compressed air
Ensure that the machine is operating at the rated pressure
and that the rated pressure is known to all relevant
personnel.
All air pressure equipment installed in or connected to
the machine must have safe working pressure ratings of
at least the machine rated pressure.
If more than one compressor is connected to one
common downstream plant, effective check valves and
isolation valves must be fitted and controlled by work
procedures, so that one machine cannot accidentally be
pressurized / over pressurized by another.
If a safety valve is installed between the isolation valve
and the compressor, it must have sufficient capacity to
relieve the full capacity of the compressor(s).
The discharged air contains a very small percentage of
compressor lubricating oil and care should be taken to
ensure that downstream equipment is compatible.
If the discharged air is to be ultimately released into a
confined space, adequate ventilation must be provided.
The use of plastic bowls on line filters without metal
guards can be hazardous. Their safety can be affected
by either synthetic lubricants, or the additives used in
mineral oils. Metal bowls should be used on a pressurized
system.
5.0 SAFETY
When using compressed air always use appropriate
personal protective equipment.
All pressure containing parts, especially flexible hoses
and their couplings, must be regularly inspected, be free
from defects and be replaced according to the Manual
instructions.
Compressed air can be dangerous if incorrectlyhandled.
Before doing any work on the unit, ensure that all
pressure is vented from the system and that the machine
cannot be started accidentally.
Avoid bodily contact with compressed air.
The safety valve located in the separator tank must be
checked periodically for correct operation.
Whenever pressure is released through the pressure relief
valve, it is due to excessive pressure in the system. The
cause for the excessive pressure should be investigated
immediately.
Materials
The following substances are used in the manufacture
of this machine and may be hazardous to health if used
incorrectly:
preservative grease
•
rust preventative
•
compressor coolant
•
WARNING
AVOID INGESTION, SKIN CONTACT AND
INHALATION OF FUMES
For further information, request and consult the coolant
Material Data Sheet (UK ACGP 011/96 −ULTRA COOLANT
ACGP 029/90−food grade coolant. For USA served areas,
use MSDS sheet APDD 236) from your local IR office,
Distributor or Air Center.
Should compressor lubricant come into contact with the
eyes, then irrigate with water for at least 5 minutes.
Should compressor lubricant come into contact with the
skin, then wash off immediately.
Consult a physician if large amounts of compressor
lubricant are ingested.
The above information contains data supplied in support
of United Kingdom Control of Substances Hazardous to Health (C.O.S.H.H.) regulations
Transport
When loading or transporting machines ensure that the
specified lifting and tie down points are used.
It is recommended that the machine be moved using the
fork lift slots in the machine base.
Refer to section 8-General Information for reference
information.
Electrical
The compressor has high and dangerous voltage in the
motor starter and control box. All installations must be
in accordance with recognized electrical codes. Before
working on the electrical system, be sure to remove
voltage from the system by using a manual disconnect
switch. A circuit breaker or fuse safety switch must be
provided in the electrical supply line leading to the
compressor.
Those responsible for installation of this equipment
must provide suitable grounds, maintenance clearance
and lightning arrestors for all electrical components in
accordance with National and Local code requirements.
Keep all parts of the body and any hand−held tools or
other conductive objects, away from exposed live parts
of the compressor electrical system. Maintain dry footing,
stand on insulating surfaces and do not contact any other
portion of the compressor when making adjustments or
repairs to exposed live parts of the compressor electrical
system.
Close and lock all access doors when the compressor is
left unattended.
Do not use extinguishers intended for Class A or Class B
fires on electrical fires. Use only extinguishers suitable for
class BC or class ABC fires.
Attempt repairs only in clean, dry, well lighted and
ventilated areas.
Connect the compressor only to electrical systems that
are compatible with its electrical characteristics and that
are within it’s rated capacity.
Consult a physician if compressor lubricant is inhaled.
Never give fluids or induce vomiting if the patient is
unconscious or having convulsions.
Condensate cannot be discharged into fresh/surface
water drains. In some regions compressor condensate
containing ULTRA COOLANT can be fed directly into a
drainage system that has downstream sewage treatment.
As waste water regulations vary by country and region it
is the responsibility of the user to establish the limitations
and regulations in their particular area. Ingersoll Rand
and its associated distributors are happy to advise and
assist in these matters.
WARNING
This compressor contains a variable frequency drive. When it is switched off and the motor is stopped, the
internal capacitors store a potentially lethal high voltage. DO NOT REMOVE THE DRIVE COVER or attempt any
work on the drive unless trained. There are no user serviceable items behind the cover.
WARNING
There is a high discharge air temperature shutdown function built into each compressor. lt is factory preset
at 109 °C (228° F).This function should be checked at regular intervals for proper operation, once a month is
recommended. Refer to maintenance section.
Failure to adhere to these recommendations can result in mechanical failure, property damage and serious
injury or death.
All air and water inlet, and air and water discharge pipework to and from the inlet and discharge port
•
connections must take into account vibration, pulsations, temperature, maximum pressure applied,
corrosion and chemical resistance. In addition, it should be noted that lubricated compressors will
discharge some oil into the air stream; therefore, compatibility between discharge piping, system
accessories and software must be assured.
For the foregoing reasons, the use of plastic piping and rubber hose as discharge piping is not
•
recommended. In addition, flexible joints and/or flex lines can only be considered for such purposes if
their specifications fit the operating parameters of the system.
It is the responsibility of the installer and owner to provide the appropriate service pipework to and from
•
the machine.
Steps to be taken in the case of spillage: Soak up with a
suitable absorbent material, then sweep into a plastic bag
for disposal.
Burn in an approved incinerator, or according to local area
or country regulations.
For further information, consult ULTRA COOLANT Material
Data Sheets ACGP 011/96 or APDD 236. FOOD GRADE
COOLANT Material Data Sheets IRACA145 or APDD190.
WARNING
“Ingersoll Rand air compressors are not designed, intended, or approved for breathing air applications.
Ingersoll Rand does not approve specialized equipment for breathing air application and assumes no
responsibility or liability for compressors used for breathing air services.”
WARNING
No portable communication devices emitting more than 7.5 volts per metre in the frequency range from 250
MHz to 280 MHz should be operated within 5m (16.5ft) of the unit.
WARNING
The motor rotor contains a powerful magnetic field. This field can effect the operation of digital devices such
as watches, mobile phones etc. Assembly or handling of the rotor should not be attempted by personnel with
cardiac pacemakers, defibrillators or other implanted electronic medical device.
WARNING
The specification of this machine is such that the machine is not suitable for use in flammable gas risk areas.
If such an application is required then all local regulations, codes of practice and site rules must be observed.
To ensure that the machine can operate in a safe and reliable manner, additional equipment such as gas
detection and intake (shut−off) valves may be required, dependant on local regulations or the degree of risk
involved.
WARNING
The compressor can operate in a pressurized shutdown mode. If the compressor stops automatically, the
airend, separator tank and oil system can contain high pressure air. This can be relieved by pressing the
emergency stop button and can be verified by unscrewing the coolant fill plug which has a vent hole through
which any residual pressure will be vented. Downstream of the separator tank may still contain system
pressure which must also be vented
5.0 SAFETY
NOTICE
To obtain satisfactory compressor operation and
maintenance, a minimum of 3 feet clearance on 3
sides is required. 3 1/2 feet is required in front of
the control panel (or minimum required by latest
National Electrical code or applicable local codes.)
Refer to the Instruction / Operators Manual before
performing any maintenance.
DANGER
Discharge air.
Can contain carbon monoxide or other
contaminants. Will cause severe injury or death.
Do not breathe this air.
WARNING
Hazardous voltage. Can cause severe injury or
death.
Disconnect power before servicing.
Lockout/Tagout machine.
WARNING
Rotating fan blade. Can cause severe injury.
Do not operate with covers removed.
Disconnect power. Lock/out and tag out machine.
Depending on point of manufacture and point of use, the compressor and this manual will show symbols from the
following sections. Compressors for use within the European Community must be equipped with symbols from section
5.4. Read and understand thoroughly. Heed warnings and follow instructions. If you do not understand, inform your
supervisor.
Incorrect lifting of machine can cause injury or
property damage.
Lift only from base channels
WARNING
High pressure air.
Can cause severe injury or death.
Compressor can operate in a pressurized
shutdown mode.
Relieve pressure before removing filter plugs/caps,
fittings or covers.
NOTICE
Air discharge
CAUTION
Use of incorrect coolant can cause system
contamination.
Use only SSR ULTRA COOLANT
WARNING
Food contaminant.
Can cause severe injury or death.
Use only Ingersoll Rand SSR H-1F food grade coolan
t.
NOTICE
Lift here
WARNING
Hot surface.
Can cause severe injury.
Do not touch. Allow to cool before servicing.
39568464 Rev. 03
22061915 Rev. A
5.0 SAFETY
CAUTION
Improper coolant filter replacement will cause
compressor damage.
Replace filter element after first 150 hours of
operation and every 2000 hours thereafter or when
coolant is changed.
NOTICE
Rotation
Rotation
Rotation
WARNING HIGH VOLTAGE
Do not attempt any work.
Read manual.
Trained service personnel only.
Remove electrical supply.
Wait 15 minutes.
Check for zero voltage.
Proceed with caution.
WARNING
Moving parts. Can cause severe injury.
Do not operate with covers removed.
Service only with machine blocked to prevent turn over.
Hazardous voltage. Can cause severe injury or
death.
Disconnect power before servicing.
Lockout/Tagout machine.
NOTICE
To obtain satisfactory compressor operation and
maintenance, a minimum of 3 feet clearance on 3
sides is required. 3 1/2 feet is required in front of
the control panel (or minimum required by latest
National Electrical code or applicable local codes.)
Refer to the Instruction / Operators Manual before
performing any maintenance.
Use 75°C copper wire only.
Use 75˚C copper wire only.
Nur 75˚C kupferdraht verwenden.
Use somente fio de cobre de 75˚.
39492384 Rev. 03
usare 75˚C solamente cavi di rame.
Usar solamente cable de cobre para 75˚ C.
Utilisez 75˚C uniquement fil de cuivre.
IMPORTANT
Before starting this air compressor unit the shipping
brace(s) must be removed.
Save the brace(s) for future use.
Refer to Operators / Instruction Manual.
Before starting this air compressor unit
the shipping brace(s) must be removed.
Save the brace(s) for future use. Refer to
Operators/Instruction Manual.
THOROUGHLY INSPECT THIS SHIPMENT IMMEDIATELY UPON ARRIVAL
OUR RESPONSIBILITY FOR THIS SHIPMENT CEASED WHEN THE CARRIER SIGNED
BILL OF LADING
If goods are received short or in damaged condition, it is important that you notify the carrier and insist on a
notation of the loss or damage across the face of the freight bill. Otherwise no claim can be enforced against the
transportation company.
If concealed loss or damage is discovered, notify your carrier at once and request an inspection. This is absolutely
necessary. Unless you do this the carrier will not entertain any claim for loss or damage. The agent will make an
inspection and grant a concealed damage notation. If you give the transportation company a clear receipt for
goods that have been damaged or lost in transit, you do so at your own risk and expense.
WE, AT lR, ARE WILLING TO ASSIST YOU IN EVERY POSSIBLE MANNER TO COLLECT CLAIMS FOR LOSS
OR DAMAGE, BUT THE WILLINGNESS ON OUR PART DOES NOT MAKE US RESPONSIBLE FOR
COLLECTION OF CLAIMS OR REPLACEMENT OF MATERIAL. THE ACTUAL FILING AND PROCESSING OF
THE CLAIM IS YOUR RESPONSIBILITY.
Ingersoll Rand Company
6.1 RECEIPT
When you receive the compressor please inspect it closely. Any indication of careless handling by the carrier should be
noted on the delivery receipt especially if the compressor will not be immediately unpacked. Obtaining the deIivery
persons signed agreement to any noted damages will facilitate any future insurance claims.
6.2 UNPACKING AND HANDLING
The compressor will normally be delivered with a polyethylene or other cover. If a knife has to be used to remove this
cover, ensure that the exterior paintwork of the compressor is not damaged.
Incorporated within the base of the compressor are slots to enable a fork lift truck to move the machine. Ensure truck
forks are fully engaged on both sides. Alternatively a special lifting frame can be utilized to enable a crane or hoist to
move the compressor. Use only marked lifting points.
Once the packaging and pallet are discarded and the unit is in its final position, remove the transit brackets from the
resilient mounts and store for future use or discard.
On N75−160 units remove the screw in the base and slide the separator tank service bracket into the upper position on
the slots and tighten screws.
For major overhaul (i.e. motor removal) position the
machine to obtain lifting access e.g. fork lift truck.
See diagram in reference section for minimum space
requirements for normal operation and maintenance.
Ambient temperatures higher than 46° C (115° F) must be
avoided as well as areas of high humidity.
Consider also the environment surrounding or near the
compressor. The area selected for the location of the
compressor should be free of dust, chemicals, metal
filings, paint fumes and overspray.
Hard surfaces may reflect noise with an apparent
increase in the decibel level. When sound transmission
is important, a sheet of rubber or cork can be installed
beneath the machine to reduce noise. Flexible piping
may be required.
CAUTION
A minimum of 1 m (3.3ft) all round the compressor is recommended. If headroom is restricted, then the exhaust should be ducted or deflected away from the machine.
Screw type compressors [1] should not be installed in air systems with reciprocating compressors without
means of isolation such as a common receiver tank. It is recommended that both types of compressor be
piped to a common receiver using individual air lines.
The machine is shipped with the shipping restraints in place. Ensure that these are removed to allow free
movement of the drive assembly during operation. Each restraint is painted yellow.
It is recommended that provision be made for lifting
heavy components during major overhaul. Use only
lifting points provided.
Minimum space in front of control panel door as required
by National or Local codes must be maintained.
The compressor can be installed on any level floor
capable of supporting it. A dry, well ventilated area where
the atmosphere is as clean as possible is recommended.
Sufficient space all round and above the compressor must
be allowed, to enable the effective removal of the cooling
air which, in turn, will reduce the risk of recirculating the
cooling air back through the compressor.
It is essential when installing a new compressor [1],
to review the total air system. This is to ensure a safe
and effective total system. One item which should be
considered is liquid carryover. Installation of air dryers
[3] is always good practice since properly selected and
installed they can reduce any liquid carryover to zero.
A receiver [2] may be necessary to ensure that the total
system volume is not less than 2.0 U.S. Gal. per rated
delivery C.F.M.
Discharge piping should be at least as large as the
discharge connection of the compressor. All piping
and fittings should be suitably rated for the discharge
pressure.
It is good practice to locate an isolation valve close to the
compressor and to install line filters [4].
Include a means [6] to vent the discharge pipework
downstream from the minimum pressure check valve
located on the separator tank. Upstream of the first
system isolation valve [7].
The discharged air contains a very small percentage of
compressor lubricating oil and care should be taken to
ensure that downstream equipment is compatible.
When two rotary units are operated in parallel, provide an
isolation vaIve and drain trap for each compressor before
the common receiver.
The built−in aftercooler reduces the discharge air
temperature below the dew point (for most ambient
conditions), therefore, considerable water vapor
is condensed. To remove this condensation, each
compressor with built−in aftercooler is furnished with a
combination condensate separator/trap.
A dripleg assembly and isolation valve should be
mounted near the compressor discharge. A drain line
should be connected to the condensate drain in the base.
IMPORTANT: The drain line must slope downward from
the base to work properly. For ease of inspection of the
automatic drain trap operation, the drain piping should
include an open funnel.
NOTICE
For low volume systems that may not include a
receiver [2], compressor response time may need
adjusting. Contact your local IR service agent.
CAUTION
The use of plastic bowls on line filters and other plastic air line components without metal guards can be
hazardous. Their safety can be affected by either synthetic coolants or the additives used in mineral oils. From
a safety standpoint, metal bowls should be used on any pressurized system.
NOTICE
Do not use the compressor to support the discharge pipe.
This procedure should only be carried out by a qualified electrician, electrical contractor or your local Ingersoll Rand Distributor or Air Center.
The compressor and drive should be properly grounded
/ earthed in accordance with Local and National Code
requirements.
Installation of this compressor must be in accordance
with recognized electrical codes and any local Health and
Safety Codes.
The compressor must have its own isolator situated
adjacent to it. The fuse protecting the circuit and the
compressor must be selected in accordance with local
and national code requirements on the basis of the data
provided in the general information section
Feeder cables should be sized by the customer/electrical
contractor to ensure that the circuit is balanced and not
overloaded by other electrical equipment. The length
of wiring from a suitable electrical feed point is critical
as voltage drops may impair the performance of the
compressor.
Cable sizes may vary considerably so the mains
terminals will accept up to 50mm2 (1awg) (37/45k
& 50/60H) and up to 90mm2 (3/0awg) (55/75k &
75/100H) cable. The N75K−160K and N100H−200H
machines mains terminals will accept 2 x 120mm2 (4/0
AWG) cables. The N250H−300H−2S machines main
terminals will accept 2 x 400 MCM cables.
Feeder cable connections to incoming terminals
L1−L2−L3 should be tight and clean.
The applied voltage must be compatible with the motor
and compressor data plate ratings.
The control circuit transformer has different voltage
tappings. Ensure that these are set for the specific applied
voltage prior to starting.
The feeder cable must be suitably glanded into the power
drive module (P.D.M.) electrical box to ensure that dirty air
does not by−pass the filter pads or degrade the cooling
air flow.
On completion of electrical installation, check that blower
motor rotation is correct. N250H−300H utilizes a fan.
This machine is designed for use in heavy industrial
environments, where the electricity supply is separated
from nearby residential and commercial areas. If the
machine is to be used in the light industrial, residential or
commercial environment where the local supply network
is shared, further radio frequency (RF) screening measures
may be required. Consult your local distributor/supplier
for details of the optional RF filter. RF filter supplied as
standard on N250−300H−2S
The compressor has a anti−condensation heater and
thermostat in the electrical box. This circuit can be
connected to an independent electrical supply of either
110V or 230V single phase, dependant on the country
of installation. The supply should be suitable fused
and an independent isolator installed adjacent to the
compressor.
This should be done in accordance with local and national
codes. It is good practice and sometimes mandatory, to
display suitable signs warning that the machine has two
separate electrical supplies which both must be isolated
before any work is attempted.
Alternately it can be supplied from the 110V tapping
of the control transformer and connected as shown on
schematic wiring diagram.
A hole is provided for incoming power connection. If it is
necessary to make a hole in the control box in a different
location, care should be taken to not allow metal shavings
to enter the starter and other electrical components
within the box. If another hole is used, the original hole
must be blocked off.
Supply voltage must be kept to a maximum imbalance of 2% on 50Hz and 3% on 60Hz applications. Voltage
imbalances greater than these levels can cause permanent damage to the drive.
Compressor must not be subjected to any voltage spikes or surges in excess of 575V. Exposure to spikes/surges in excess of 575V can permanently damage the drive. If the possibility of such exists it is recommended
that adequate surge protection is fitted such as an Ingersoll Rand line reactor. See your local Ingersoll Rand
representative.
Failure of the drive due to voltage spikes, line notching, harmonics or other power quality related problems,
will not be covered by the standard compressor warranty.
The correct type and rating of line input fuse MUST BE fitted onto the customers isolator or breaker close to
the compressor. For Amp rating see technical information in Section 8.1.
Product Identification
Class − J, Class − T, or
Semiconductor
See your local Ingersoll Rand representative for a range of fuses and disconnect isolators matched to your particular
machine.
Example of voltage imbalance calculation
U →V 462v
V → W 459v
W → U 453v
Fuse TypeFast Acting Class−J, T or Semiconductor type,
Current limiting, Interrupt Rating − 200,000 Amps
RMS SYM.
Alternate fuse may be used if the time current
characteristics are faster than fuses recommended
in this section.
Water piping to and from the compressor package must
be 1”diameter or larger for N37/75K (N50/100H), 11/2”
diameter or larger for N75/160K (N100H/200H) and 2.0”
diameter or larger for N250/300H−2S. Isolation valves
with side drains should be installed on both the inlet and
outlet lines. Also a strainer of 2mm−mesh size should
be installed on the inlet line. Strainers are available from
Ingersoll Rand. Ingersoll Rand CPN 54689997 (N37/45K &
N50/60H) or CPN 54690029 (N55/75K & N75/100H)
A normally closed solenoid valve is fitted to the water
outlet side of the compressor package. This is wired
into the compressor control circuit and closes when the
compressor stops.
Carefully inspect your water system before installing
the compressor package. Ensure that the piping is free
of scale and deposits that may restrict water flow to the
compressor package.
Proper operation of your compressor requires that the
water flow listed below be provided at a maximum supply
temperature of 46° C (115° F).
Water temperature and pressure gauges should be
installed in the water piping for use in any fault finding
of the water system. Water pressure should ideally be
between 3 and 5 bar (43.5 and 72.5 psi) but must not be
above 10 Bar (145 psi)
At the initial installation or for start−up after draining the
water system proceed to vent the system as follows.
Locate the water system vent cocks on top of the
1.
aftercooler and lubricant cooler.
Open the water valve(s) allowing water to flow to the
2.
package.
Open the vent cocks and allow all air to escape from
3.
the system. When water is observed at the vent
cocks, close them.
The system is now vented.
Draining the water system
Should it become necessary to completely drain the
water system, proceed as follows.
Disconnect the inlet and discharge water lines from
1.
the connections located at the rear of the unit.
Locate the aftercooler and lubricant cooler. Remove
2.
the drain plugs located at the bottom of the coolers.
Allow the system to completely drain.
N75−160k, N100−200H Watercooled
See piping and instrumentation diagram (Section
8.3). The coolers are piped in a ”parallel” water flow
arrangement with a manual trim valve controlling the
flow through the aftercooler. An additional automatic
anti−condensation thermal valve controls the flow of
water to the oilcooler. It has a sensor in the separator
tank and capillary to signal the valve to open and close in
order to avoid water condensing in the tank.
Adjusting the Aftercooler Trim Valve
The anti−condensation valve has no adjustment. The
Aftercooler Trim Valve is factory set and should not need
adjusting but if disturbed use following procedure.
Close valve fully clockwise and then open 1/4 turn. With
machine running loaded observe the package discharge
temperature Intellisys display. It should be be approx 15°
F (8° C) above the water inlet temperature. If it is higher,
open the valve a little more. Put a ’Warning − Do Not
Adjust’ label on the valve or fit a lock.
Water cleanliness is also extremely important. Cleaning of
coolers as a result of fouling is a customer responsibility.
Therefore, it is highly recommended that proper water
quality must meet the requirements listed in WATER
QUALITY RECOMMENDATIONS later in this section.
Water quality recommendations Water quality is often
overlooked when the cooling system of a water−cooled
air compressor is examined. Water quality determines
how effective the heat transfer rate, as well as the flow
rate will remain during the life of the unit. It should
be noted that the quality of water used in any cooling
system does not remain constant during the operation
of the system. Evaporation, corrosion, chemical and
temperature changes, aeration, scale and biological
formations effect the water makeup. Most problems in
a cooling system show up first in a reduction in the heat
transfer rate, then in a reduced flow rate and finally with
damage to the system.
Scale: Scale formation inhibits effective heat transfer, yet
it does help prevent corrosion. Therefore, a thin uniform
coating of calcium carbonate is desired on the inner
surface. Perhaps the largest contributor to scale formation
is the precipitation of calcium carbonate out of the water.
This is dependent on temperature and pH. The higher the
pH value, the greater the chance of scale formation. Scale
can be controlled with water treatment.
Corrosion: In contrast to scale formation is the problem
of corrosion. Chlorides cause problems because of their
size and conductivity. Low pH levels promote corrosion,
as well as high levels of dissolved oxygen.
Substances Test interval Acceptable
concentration
Corrosivity
(Hardness,
pH, Total
Monthly - if stable
for 3 to 4 months,
analyse quarterly.
Langelier Index
0 to 1
Dissolved Solids,
Temperature at
inlet Alkalinity)
Fouling: Biological and organic substances (slime)
can also cause problems, but in elevated temperature
environments such as cooling processes they are not a
major concern. If they create problems with clogging,
commercial shock treatment are available.
To ensure good operation life and performance of
the compressor cooling system, the recommended
acceptable ranges for different water constituents are
included below:
Water cleanliness is extremely important. Strainers are
available from Ingersoll Rand. Cleaning of coolers as a
result of fouling is a customer responsibility.
Isolation valves with side drains should be installed on
both the inlet and outlet lines.
A normally closed solenoid valve is fitted to the water
outlet side of the compressor package.
It is important to ensure that the recommended flow
rate cannot be exceeded. This will normally mean that an
orifice plate must be fitted in the pipework at least 1m
(3.3ft) before the cooler, with the orifice size calculated to
ensure that the maximum sea water flow rate cannot be
exceeded. If these precautions are not taken, it is possible
that the sea water flow rate through the cooler may be
several times the recommended maximum, which will
lead to rapid failure.
Sea Water Pressure Bar
(psi)
3 (43.5) 12 (0.472)
4 (58) 11 (0.433)
5 (72.5) 10 (0.394)
6 (87) 9.6 (0.378)
7 (101.5) 9.2 (0.362)
8 (116) 8.9 (0.35)
9 (130.5) 8.7 (0.343)
10 (145) 8.4 (0.33)
Orifice diameter in mm
(inch) to give a maximum
sea water flow of 90l/min
(23.76 US gall/min)
No oil cooler manufacturer can guarantee that its
products will have an indefinite life and for this reason, we
suggest that the cooling system is designed to minimize
any damage caused by a leaking oil cooler. This can be
achieved as follows ;
The oil pressure should be higher than the sea water
1.
pressure, so that in the event of a leak occurring, the
oil will not be contaminated.
If the sea water pressure is 100PSIG (7BARG) or above
2.
it is recommended that the water solenoid valve is
changed to the water inlet side. This will protect the
system from high pressure surges when not in use.
Flow at 7.5 Barg (m³/min) 6.43 7.39 − −
Flow at 8.5 Barg (m³/min) 6.12 7.02 − −
Flow at 10 Barg (m³/min) 5.83 6.46 − −
Flow at 100 psig (cfm) − − 235 262
Flow at 125 psig (cfm) − − 216 248
Flow at 140 psig (cfm) − − 209 233
Air Cooling System
Cooling air flow m3/min (cfm) 184 (6500) 184 (6500) 184 (6500) 184 (6500)
Maximum ∆P in air ducts Pa (inch WG) 124 (0.5) 124 (0.5) 124 (0.5) 124 (0.5)
Compressed air outlet ∆T ° C (° F) 8 (15) 8 (15) 8 (15) 8 (15)
Water Cooling System
Cooling (clean) water flow l/min (US
gallon/min) @ 10 ° C (50 ° F) / 32 ° C
(90 ° F)
Maximum ∆P in air ducts Pa (inch WG) 62 (0.25) 62 (0.25) 62 (0.25) 62 (0.25)
Compressed air outlet ∆T ° C (° F) 14 (25) 14 (25) 14 (25) 14 (25)
Main Power Circuit A/C (W/C) ***
Package full load current at 220V (A) **140 (131) 168 (159) 140 (131) 168 (159)
Package full load current at 400V (A) **75 (70 ) 90 (85) − −
Package full load current at 460V (A) **− − 68 (63) 81 (77)
Package full load current at 575V (A) **− − 56 (52) 67 (63)
Max fuse size @ 220V (A) 250 250 250 250
Max fuse size @ 400V (A) 125 125 125 125
Max fuse size @ 460V (A) 125 125 125 125
Max fuse size @ 575V (A) 100 100 100 100
Fuse type Fast acting class J, T or semiconductor type, current limiting interrupt
Heater Circuit
110V Single Phase Rating (A) 44 4 4
230V Single Phase Rating (A) 44 4 4
Fuse type General purpose
* In accordance with PNEUROP PN8NTC2.3
** Tolerances in accordance with ISO 1217
*** Always apply local electrical codes for sizing cables and fusing. In the absence of local codes the minimum cable
size should be calculated on basis of mean package full load current X1.25 (i.e. 25% margin)
Sound pressure level dB(A) * 75 75 75 75
Maximum ambient temperature ° C (° F) 46 (115) 46 (115) 46 (115) 46 (115)
Minimum ambient temperature ° C (° F) 1.7 (35) 1.7 (35) 1.7 (35) 1.7 (35)
Weight Kg (lbs) 1531 (3374) 1531 (3374) 1531 (3374) 1531 (3374)
Maximum pressure barg (psig) 10 (145) 10 (145) 10 (145) 10 (145)
Minimum pressure barg (psig) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65)
Coolant capacity litres (US gal) 30 (8) 30 (8) 30 (8) 30 (8)
HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248) 120 (248)
Performance
Flow at 7.5 Barg (m3/min) 10.11 12.94 − −
Flow at 8.5 Barg (m3/min) 9.29 12.15 − −
Flow at 10 Barg (m3/min) 8.49 11.50 − −
Flow at 100 psig (cfm) − − 372 479
Flow at 125 psig (cfm) − − 328 429
Flow at 140 psig (cfm) − − 306 413
Air Cooling System
Cooling air flow m3/min (cfm) 241 (8500) 241 (8500) 241 (8500) 241 (8500)
Maximum ∆P in air ducts Pa (inch WG) 124 (0.5) 124 (0.5) 124 (0.5) 124 (0.5)
Compressed air outlet ∆T° C (° F) 8 (15) 8 (15) 8 (15) 8 (15)
Water Cooling System
Cooling (clean) water flow l/min (US
gallon/min) @ 10 ° C (50 ° F) / 32 ° C (90
° F)
Maximum ∆P in air ducts Pa (inch WG) 62 (0.25) 62 (0.25) 62 (0.25) 62 (0.25)
Compressed air outlet ∆T ° C (° F) 14 (25) 14 (25) 14 (25) 14 (25)
Main Power Circuit A/C (W/C) ***
Package full load current at 220V (A) **208 (196) − 208 (196) −
Package full load current at 400V (A) **110 (104) 144 (138) − −
Package full load current at 460V (A) **− − 100 (94) 131 (125)
Package full load current at 575V (A) **− − 82 (78) 108 (103)
Max fuse size @ 220V (A) 300 400 300 400
Max fuse size @ 400V (A) 150 200 150 200
Max fuse size @ 460V (A) 150 200 150 200
Max fuse size @ 575V (A) 125 150 125 150
Fuse type Fast acting class J, T or semiconductor type, current limiting
Heater Circuit
110V Single Phase Rating (A) 4 4 4 4
230V Single Phase Rating (A) 4 4 4 4
Fuse type General purpose
* In accordance with PNEUROP PN8NTC2.3
** Tolerances in accordance with ISO 1217
*** Always apply local electrical codes for sizing cables and fusing. In the absence of local codes the minimum cable
size should be calculated on basis of mean package full load current X1.25 (i.e. 25% margin)