Irn200h Cc

User Manual: irn200h-cc

Open the PDF directly: View PDF .
Page Count: 100

AIR COMPRESSOR GROUP BONDED WARRANTY & REGISTERED START UP
1.0 CONTENTS
2.0 FOREWORD
3.0 ABBREVIATIONS & SYMBOLS
4.0 PURCHASE ORDER DETAILS
5.0 SAFETY
6.0 RECEIPT / HANDLING
7.0 INSTALLATION
8.0 GENERAL INFORMATION
9.0 OPERATING INSTRUCTIONS
10.0 MAINTENANCE
11.0 FAULT FINDING

OPERATION AND MAINTENANCE MANUAL

C.C.N. : 54731245

DATE : DECEMBER 2007

REV. : J

IRN37−160K−CC

IRN50−200H−CC

IRN75−160K−2S

IRN100−200H−2S

IRN250−300H−2S

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.

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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 1

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

7.3 ELECTRICAL 21

7.4 WATERCOOLED UNITS 23

7.5 SEA WATERCOOLED UNITS SELECTED

UNITS ONLY 25

7.6 OUTDOOR SHELTERED INSTALLATION 26

8.0 GENERAL INFORMATION 27

8.1 TECHNICAL INFORMATION 27

8.2 INSTALLATION DRAWING 33

8.3 PROCESS AND INSTRUMENTATION

DIAGRAM 42

8.4 ELECTRICAL SCHEMATIC 50

8.5 GENERAL DESCRIPTION 64

9.0 OPERATING INSTRUCTIONS 65

9.1 BASIC OPERATION 65

9.2 INTELLISYS CONTROLS 67

9.3 DISPLAY SCREEN 68

9.4 CURRENT STATUS SCREEN 69

9.5 MAIN MENU 70

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

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

2.0 FOREWORD

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-ROY-

SOMER

INGERSOLL RAND COMPANY

•

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 3

WARNING

The use of the machine in any of the situation types listed in table 1:−

Is not approved by Ingersoll Rand,

May impair the safety of users and other persons, and

May prejudice any claims made against Ingersoll Rand.

TABLE 1

WARNING − NOT PERMITTED

Use of the machine to produce compressed air for:

direct human consumption

indirect human consumption.

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.

2.0 FOREWORD

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

3.0 ABBREVIATIONS & SYMBOLS

#### Contact Ingersoll Rand for serial number

−>#### Up to Serial No.

####−> From Serial No.

* Not illustrated

† Option

NR Not required

AR As required

SM Sitemaster/Sitepack

HA High ambient machine

WC Watercooled machine

AC Aircooled machine

ERS Energy recovery system

T.E.F.C. Totally enclosed fan cooled motor (IP54)

O.D.P. Open drip proof (motor)

ppm parts per million

cs Czech

da Danish

de German

el Greek

en English

es Spanish

et Estonian

ﬁ Finnish

fr French

hu Hungarian

it Italian

lt Lithuanian

lv Latvian, Lettish

mt Maltese

nl Dutch

no Norwegian

pl Polish

pt Portuguese

sk Slovak

sl Slovenian

sv Swedish

zh Chinese

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 5

4.0 PURCHASE ORDER DETAILS

ROTARY SCREW AIR COMPRESSOR

This unit was purchased from

_____________________________________________________________

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: _______________________________________________

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

5.1 SAFETY INSTRUCTIONS

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.

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.

5.2 SAFETY PRECAUTIONS

General 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.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 7

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.

Consult a physician if compressor lubricant is inhaled.

Never give ﬂuids or induce vomiting if the patient is

unconscious or having convulsions.

•

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.

5.0 SAFETY

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

Condensate disposal

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.

Coolant disposal

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

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.

•

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

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 9

5.0 SAFETY

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.

5.3 TEXT DECALS

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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

CAUTION

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 coolant.

NOTICE

Lift here

WARNING

Hot surface.

Can cause severe injury.

Do not touch. Allow to cool before servicing.

22061915 Rev. A

39568464 Rev. 03

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 11

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

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.

Air

Discharge

39540224 Rev. 04

39540257 Rev. 04

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

Condensate

drain.

Electrical

power inlet.

WARNING

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.

IMPORTANT

39481130 Rev. 02

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 13

5.0 SAFETY

5.4 GRAPHIC FORM AND MEANING OF ISO SYMBOLS

Prohibition / Mandatory Information / Instructions Warning

WARNING: Electrical shock risk. WARNING − Pressurized component or

system.

WARNING − Hot surface.

WARNING − Pressure control. WARNING − Corrosion risk. WARNING − Air/gas ﬂow or Air discharge.

WARNING − Pressurized vessel. Do not remove the Operating and

Maintenance manual from this machine.

WARNING − Flammable liquid.

WARNING − Rotor magnetic ﬁeld

can aﬀect pacemakers.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

0°

WARNING − Do not undertake any

maintenance on this machine until the

electrical supply is disconnected and the

air pressure is totally relieved.

WARNING − Consult the Operation

and Maintenance manual before

commencing any maintenance.

WARNING − For operating temperature

below 0°C, consult the Operation and

Maintenance manual.

Read the Operation and Maintenance

manual before operation or maintenance

of this machine is undertaken.

Do not stack. Do not operate the machine without the

guard being in place.

Do not stand on any service valve or

other parts of the pressure system.

Do not operate with the doors or

enclosure open.

Do not use fork lift truck from this side.

Do not breathe the compressed air from

this machine.

No naked lights. Do not open the service valve before the

air hose is attached.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 15

5.0 SAFETY

Use fork lift truck from this side only. Emergency stop. Tie down point

Lifting point. On (power). Oﬀ (power).

SET SEQUENCER STATUS LOAD

SEQUENCER (AUTOMATIC CONTROL) COMPRESSOR OFF LOAD (UNLOADED)

RESET COMPRESSOR STATUS MODULATE

MALFUNCTION POWER FOULED FILTER

POWER INLET ELECTRIC MOTOR HOURS

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

5.0 SAFETY

COOLANT SEPARATOR PRESSURE AIR DISCHARGE

PRESSURIZED TANK ON / OFF CYCLE COOLANT FILTER

AIR FILTER ON / OFF PUSH BUTTON COOLANT PRESSURE

AIR PRESSURE STAR DELTA IEC 617−7 AUTOMATIC RESTART

HEAT EXCHANGER MAINTENANCE MAINTENANCE PROHIBITED

COOLANT DRAIN CONDENSATE DRAIN PRESSURE CONTROL

MANUAL (SELECT) TEMPERATURE HIGH TEMPERATURE

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 17

5.0 SAFETY

BELT TENSION FILTER MOTOR LUBRICATION

FRAGILE KEEP DRY THIS WAY UP

USE NO HOOKS NO SIDE CLAMPS ROTATION

POWER INLET (AC) WATER IN WATER OUT

TRAINED SERVICE PERSONNEL WAIT TIME CHECK ZERO VOLTS

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

6.0 RECEIPT / HANDLING

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.

IMPORTANT

READ THIS

LOST OR DAMAGED GOODS

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

6.2 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.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 19

7.0 INSTALLATION

For technical information see section 8.0.

7.1 LOCATION IN PLANT

Ensure that the correct tie down points are used.

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.

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.

CAUTION

A minimum of 1 m (3.3ft) all round the compressor is recommended. If headroom is restricted, then the ex-

haust 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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

7.0 INSTALLATION

7.2 DISCHARGE AND CONDENSATE PIPING

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.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 21

7.0 INSTALLATION

7.3 ELECTRICAL

CAUTION

This procedure should only be carried out by a qualiﬁed electrician, electrical contractor or your local Inger-

soll 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.

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.

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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

7.0 INSTALLATION

CAUTION

VERY IMPORTANT

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/surg-

es 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

Fuse Type Fast 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.

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

V(m) = (462 + 459 + 453) / 3 = 458v

V∆ max = 462 − 453 = 9v

= (9 / 458) x 100 = 1.97%

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 23

7.0 INSTALLATION

7.4 WATERCOOLED UNITS

Cooling Water Piping

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).

Model

Range

Minimum cooling water requirement vs

water inlet temperatures, in litres per

minute (US gallons per minute)

10°F /

50°F

21°F /

70°F

32°C /

90°F

46°C /

115°F

N37 23(6.0) 23 (6.0) 38 (10.0) 57(15.0)

N45 27(7.0) 30(8.0) 49(13.0) 76(20.0)

N55 51(13.5) 46(12.0) 38(10.0) 38(10.0)

N75 95(25.0) 68(18.0) 46(12.0) 53(14.0)

N75-2S 175(46.0) 133(35.0) 106(28.0) 76(20.0)

N90 84(22.0) 72(19.0) 65(17.0) 72(19.0)

N110 95(25.0) 80(21.0) 72(19.0) 87(23.0)

N132 110(29.0) 91(24.0) 87(23.0) 106(28.0)

N160 125(33.0) 118(31.0) 106(28.0) 125(33.0)

N250 91(24.0) 110(29.0) 179(47.0)

N300 95(25.0) 133(35.0) 220(58.0)

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)

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.

Venting the water system

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

aftercooler and lubricant cooler.

Open the water valve(s) allowing water to ﬂow to the

package.

Open the vent cocks and allow all air to escape from

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

the connections located at the rear of the unit.

Locate the aftercooler and lubricant cooler. Remove

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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

7.0 INSTALLATION

Water quality recommendations

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.

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:

Cooling Water Analysis Chart

Substances Test interval Acceptable

concentration

Corrosivity

(Hardness,

pH, Total

Dissolved Solids,

Temperature at

inlet Alkalinity)

Monthly - if stable

for 3 to 4 months,

analyse quarterly.

Langelier Index

0 to 1

Iron Monthly <2 ppm

Sulphate Monthly <50 ppm

Chloride Monthly <50 ppm

Nitrate Monthly <2 ppm

Silica Monthly < 100 ppm

Desolated

Oxygen Daily - if stable,

analyse weekly 0 ppm (as low

as possible)

Oil & Grease Monthly <5 ppm

Ammonia Monthly <1 ppm

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 25

7.0 INSTALLATION

7.5 SEA WATERCOOLED UNITS SELECTED UNITS ONLY

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)

Oriﬁce diameter in mm

(inch) to give a maximum

sea water ﬂow of 90l/min

(23.76 US gall/min)

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)

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

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

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.

The sea water outlet pipe from the cooler should

have a free run to waste.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

7.0 INSTALLATION

7.6 OUTDOOR SHELTERED INSTALLATION

Nirvana compressors are not suitable for outdoor

installation.

Installing a Nirvana compressor outside voids the

warranty of the compressor.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

TECHNICAL INFORMATION-SINGLE STAGE

N37K N45K N50H N60H

General

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) 1048 (2310) 1048 (2310) 1048 (2310) 1048 (2310)

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) 18 (4.8) 18 (4.8) 18 (4.8) 18 (4.8)

HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248) 120 (248)

Performance **

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)

23/38 (6/10) 27/49 (7/13) 23/38 (6 /10) 27 /49 (7 /13)

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

rating 200, 000 Amps RMS SYM.

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)

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

N55K N75K N75H N100H

General

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)

51/38

(13.5 /10)

95/46

(25 /12)

51/38

(13.5/10)

95/46

(25/12)

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

interrupt rating 200, 000 Amps RMS SYM.

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)

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

N90K N110K N125H N150H

General

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) 3175 (6985) 3175 (6985) 3175 (6985) 3175 (6985)

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) 91 (24) 91 (24) 91 (24) 91 (24)

HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248) 120 (248)

Performance **

Flow at 7.5 Barg (m3/min) 17.1 20.0 − −

Flow at 8.5 Barg (m3/min) 15.3 19.2 − −

Flow at 10 Barg (m3/min) 14.0 17.5 − −

Flow at 100 psig (cfm) − − 655 739

Flow at 125 psig (cfm) − − 571 670

Flow at 140 psig (cfm) − − 524 610

Air Cooling System

Cooling air ﬂow m3/min (cfm) 382 (13500) 382 (13500) 382 (13500) 382 (13500)

Maximum ∆P in air ducts Pa (inch WG) 124 (05) 124 (05) 124 (05) 124 (05)

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)

84/65

(22/17)

95/72

(25/19)

84/65

(22/17)

95/72

(25/19)

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 400V (A) ** 182 (170) 218 (206) − −

Package full load current at 460V (A) ** − − 170 (160) 200 (190)

Package full load current at 575V (A) ** − − 140 (132) 165 (157)

Max fuse size @ 380V − 415V (A) 250 350 − −

Max fuse size @ 440V − 480V (A) − − 250 250

Max fuse size @ 550V − 575V (A) − − 200 200

Fuse type Fast acting class J, T or semiconductor type, current limiting

interrupt rating 200, 000 Amps RMS SYM.

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)

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

N132K N160K N200H

General

Sound pressure level dB(A) * 75 75 75

Maximum ambient temperature ° C (° F) 46 (115) 46 (115) 46 (115)

Minimum ambient temperature ° C (° F) 1.7 (35) 1.7 (35) 1.7 (35)

Weight Kg (lbs) 3175 (6985) 3175 (6985) 3175 (6985)

Maximum pressure barg (psig) 10 (145) 10 (145) 10 (145)

Minimum pressure barg (psig) 4.5 (65) 4.5 (65) 4.5 (65)

Coolant capacity litres (US gal) 91 (24) 91 (24) 91 (24)

HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248)

Performance **

Flow at 7.5 Barg (m3/min) 23.5 28.0 −

Flow at 8.5 Barg (m3/min) 22.3 26.0 −

Flow at 10 Barg (m3/min) 21.0 25.0 −

Flow at 100 psig (cfm) − − 993

Flow at 125 psig (cfm) − − 892

Flow at 140 psig (cfm) − − 819

Air Cooling System

Cooling air ﬂow m3/min (cfm) 382 (13500) 382 (13500) 382 (13500)

Maximum ∆P in air ducts Pa (inch WG) 124 (0.5) 124 (0.5) 124 (0.5)

Compressed air outlet ∆T ° C (° F) 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) 110/87

(29/23)

125/106

(33/28)

125/106

(33/28)

Maximum ∆P in air ducts Pa (inch WG) 62 (0.25) 62 (0.25) 62 (0.25)

Compressed air outlet ∆T ° C (° F) 14 (25) 14 (25) 14 (25)

Main Power Circuit A/C (W/C) ***

Package full load current at 400V (A) ** 251 (239) 301(289) −

Package full load current at 460V (A) ** − − 255 (245)

Package full load current at 575V (A) ** − − 210 (202)

Max fuse size @ 380V − 415V (A) 350 450 −

Max fuse size @ 440V − 480V (A) − − 350

Max fuse size @ 550V − 575V (A) − − 300

Fuse type Fast acting class J, T or semiconductor type, current limiting

interrupt rating 200, 000 Amps RMS SYM.

Heater Circuit

110V Single Phase Rating (A) 4 4 4

230V Single Phase Rating (A) 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)

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.1 TECHNICAL INFORMATION − TWO STAGE

N75K N90K N110K N100H N125H N150H

General

Sound pressure level dB(A) * 75 75 75 75 75 75

Maximum ambient temperature ° C (° F) 46 (115) 46 (115) 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) 1.7 (35) 1.7 (35)

Weight Kg (lbs) 3650

(8030)

3650

(8030)

3650

(8030)

3650

(8030)

3650

(8030)

3650

(8030)

Maximum pressure barg (psig) 10 (145) 10 (145) 10 (145) 10 (145) 10 (145) 10 (145)

Minimum pressure barg (psig) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65)

Coolant capacity litres (US gal) 95 (25) 95 (25) 95 (25) 95 (25) 95 (25) 95 (25)

HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248) 120 (248) 120 (248) 120 (248)

Performance **

Flow at 7.5 Barg (m3/min) 15.7 18.0 22.1 − − −

Flow at 8.5 Barg (m3/min) 14.2 17.5 20.4 − − −

Flow at 10 Barg (m3/min) 13.1 15.4 18.9 − − −

Flow at 14 Barg (m3/min) − 12.5 15.4 − − −

Flow at 100 psig (cfm) − − − 560 690 825

Flow at 125 psig (cfm) − − − 504 621 743

Flow at 140 psig (cfm) − − − 470 580 693

Flow at 200 psig (cfm) − − − − 443 548

Air Cooling System

Cooling air ﬂow m3/min (cfm) 382

(13500)

382

(13500)

382

(13500)

382

(13500)

382

(13500)

382

(13500)

Maximum ∆P in air ducts Pa (inch WG) 124 (0.5) 124 (0.5) 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) 8 (15) 8 (15)

Water Cooling System

Cooling (clean) water ﬂow l/min (US

gallon/min) @ 10° C (50° F) / 32° C (90°

175/106

(46/28)

84/65

(22/17)

95/72

(25/19)

175/106

(46/28)

84/65

(22/17)

95/72

(25/19)

Maximum ∆P in air ducts Pa (inch WG) 62 (0.25) 62 (0.25) 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) 14 (25) 14 (25)

Main Power Circuit A/C (W/C)***

Package full load current at 400V (A) ** 153 (142) 182 (170) 218 (206) − − −

Package full load current at 460V (A) ** − − − 139 (129) 170 (160) 200 (190)

Package full load current at 575V (A) ** − − − 114 (106) 140 (132) 165 (157)

Max fuse size @ 380V − 415V (A) 250 250 350 − − −

Max fuse size @ 440V − 480V (A) − − − 200 250 250

Max fuse size @ 550V − 575V (A) − − − 200 200 200

Fuse type Fast acting class J, T or semiconductor type, current

limiting interrupt rating 200, 000 Amps RMS SYM.

Heater Circuit

110V Single Phase Rating (A) 4 4 4 4 4 4

230V Single Phase Rating (A) 4 4 4 4 4 4

4Fuse 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 onbasis of mean package full load current X1.25 (i.e. 25% margin)

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

N132K N160K N200H N250H N300H

General

Sound pressure level dB(A) * 75 75 75 80 80

Maximum ambient temperature ° C (° F) 46 (115) 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) 1.7 (35)

Weight Kg (lbs) 3650

(8030)

3650

(8030)

3650

(8030)

5933

(13,080)

5933

(13,080)

Maximum pressure barg (psig) 10 (145) 10 (145) 10 (145) 10 (145) 10 (145)

Minimum pressure barg (psig) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65) 4.5 (65)

Coolant capacity litres (US gal) 95 (25) 95 (25) 95 (25) 152 (40) 152 (40)

HAT switch setting ° C (° F) 120 (248) 120 (248) 120 (248) 120 (248) 120 (248)

Performance **

Flow at 7.5 Barg (m3/min) 26.2 31.1 − − −

Flow at 8.5 Barg (m3/min) 24.2 29.6 − − −

Flow at 10 Barg (m3/min) 23.1 27.2 − − −

Flow at 14 Barg (m3/min) 18.4 22.2 − − −

Flow at 100 psig (cfm) − − 1100 1380 1690

Flow at 125 psig (cfm) − − 990 1249 1527

Flow at 140 psig (cfm) − − 924 1167 1430

Flow at 200 psig (cfm) − − 735 − −

Air Cooling System

Cooling air ﬂow m3/min (cfm) 382

(13500)

382

(13500)

382

(13500)

679

(24000)

679

(24000)

Maximum ∆P in air ducts Pa (inch WG) 124 (0.5) 124 (0.5) 124 (0.5) 62 (0.25) 62 (0.25)

Compressed air outlet ∆T ° C (° F) 8 (15) 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) ****

110/87

(29/23)

125/106

(33/28)

125/106

(33/28)

352

(93)

352

(93)

Maximum ∆P in air ducts Pa (inch WG) 62 (0.25) 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) 14 (25)

Main Power Circuit A/C (W/C) ***

Package full load current at 400V (A) ** 251 (239) 301 (289) − − −

Package full load current at 460V (A) ** − − 255 (245) 335 (313) 406 (384)

Package full load current at 575V (A) ** − − 210 (202) 267 (250) 324 (307)

Max fuse size @ 380V − 415V (A) 350 450 − − −

Max fuse size @ 440V − 480V (A) − − 350 − 600

Max fuse size @ 550V − 575V (A) − − 300 − 500

Fuse type Fast acting class J, T or semiconductor type, current limiting interrupt

rating 200, 000 Amps RMS SYM.

Heater Circuit

110V Single Phase Rating (A) 4 4 4 4 4

230V Single Phase Rating (A) 4 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)

**** Cooling water ﬂow for N250H and N300H are @ 46 deg C (115 deg F)

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING−N37/45K−CC & N50/60H−CC − AIR COOLED

KEY

A 11/2” NPT Air discharge (Female) 60Hz units

11/2” BSP Air discharge (Female) 50Hz units

B Ø63mm (2.48”) Electrical inlet

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an open

drain due to diﬀerences in drain pressures.

Use drain lines at least as large as the connection.

Read operations manual and check local regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”) Compressor should be

bolted to the ﬂoor with fourM10 (0.38”) bolts using holes

shown. Seal base toﬂoor with cork or rubber.

H INTELLISYS Controller

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING− N37/45K−CC & N50/60H−CC − WATER COOLED

KEY

A 11/2” NPT Air discharge (Female) 60Hz units

11/2” BSP Air discharge (Female) 50Hz units

B Ø63mm (2.48”) Electrical inlet

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an

open drain due to diﬀerences in drain pressures.

Use drain lines at least as large as the connection.

Read operations manual and check local

regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”) Compressor should be

bolted to the ﬂoor with four M10 (0.38”) bolts

using holes shown. Seal base to ﬂoor

with cork or rubber.

H INTELLISYS Controller

J 1” NPT Water inlet (Female) 60Hz units

1” BSP Water inlet (Female) 50Hz units

K 1” NPT Water outlet (Female) 60Hz units

1” BSP Water outlet (Female) 50Hz units

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING − N55/75K−CC & N75/100H−CC − AIR COOLED

KEY

A 2” NPT Air discharge (Female) 60Hz units

2” BSP Air discharge (Female) 50Hz units

B Ø63mm (2.48”) Electrical inlet

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an open

drain due to diﬀerences in drain pressures. Use drain

lines at least as large as the connection. Read operations

manual and check local regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”)

Compressor should be bolted to the ﬂoor with

four M10 (0.38”) bolts using holes shown. Seal

base to ﬂoor with cork or rubber.

H INTELLISYS Controller

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING−N55/75K−CC & N75/100H−CC−WATER COOLED

KEY

A 2” NPT Air discharge (Female) 60Hz units

2” BSP Air discharge (Female) 50Hz units

B Ø63mm (2.48”) Electrical inlet

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an

open drain due to diﬀerences in drain pressures.

Use drain lines at least as large as the connection.

Read operations manual and check local

regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”)

Compressor should be bolted to the ﬂoor with

four M10 (0.38”) bolts using holes shown. Seal

base to ﬂoor with cork or rubber.

H INTELLISYS Controller

J 1” NPT Water inlet (Female) 60Hz units

1” BSP Water inlet (Female) 50Hz units

K 1” NPT Water outlet (Female) 60Hz units

1” BSP Water outlet (Female) 50Hz units

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING − N90/160K − CC SINGLE STAGE & N90/160K −

CC TWO STAGE − WATER COOLED

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

A 2” NPT Air discharge (Female) 60Hz units

(N100H−N150H)

2” BSP Air discharge (Female) 50Hz units

(N75K−N110K)

2 1/2” NPT Air discharge (Female) 60Hz units

(N200H)

2 1/2” BSP Air discharge (Female) 50Hz units

(N132K and N160K units)

B Electrical inlet −

Ø75mm (3”)

Ø64mm 575V (Option)

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an open

drain due to diﬀerences in drain pressures. Use drain

lines at least as large as the connection. Read operations

manual and check local regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”)

Compressor should be bolted to the ﬂoor with

four M10 (0.38”) bolts using holes shown. Seal

base to ﬂoor with cork or rubber.

H INTELLISYS Controller

J 1.5” NPT Water inlet (Female) 60Hz units

1.5” BSP Water inlet (Female) 50Hz units

K 1.5” NPT Water outlet (Female) 60Hz units

1.5” BSP Water outlet (Female) 50Hz units

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING − N90/160K, N125/200H SINGLE STAGE &

N75/160K, N100/200H TWO STAGE − AIR COOLED

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

A 2” NPT Air discharge (Female) 60Hz units

(N100H−N150H)

2” BSP Air discharge (Female) 50Hz units

(N75K−N110K)

2 1/2” NPT Air discharge (Female) 60Hz units

(N200H)

2 1/2” BSP Air discharge (Female) 50Hz units

(N132K and N160K units)

B Electrical inlet − Ø75mm (3”)

Ø64mm 575V (Option)

C 0.38“ NPT (Female)

Note: Pipe condensate drain lines separately to an

open drain due to diﬀerences in drain pressures. Use drain

lines at least as large as the connection. Read operations

manual and check local regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 13.0mm (0,5”)

Compressor should be bolted to the ﬂoor with

four M10 (0.38”) bolts using holes shown. Seal

base to ﬂoor with cork or rubber.

H INTELLISYS Controller

U Right

V Bottom

W Front

X−X Section through X−X

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.2 INSTALLATION DRAWING − N250/300H TWO STAGE

KEY

A 4” NPT Air discharge (Female)

B Electrical inlet −

Ø75mm (3”)

C 0.50“ NPT (Female)

Note: Pipe condensate drain lines separately to an

open drain due to diﬀerences in drain pressures. Use drain

lines at least as large as the connection. Read operations

manual and check local regulations

D Cooling airﬂow

E Exhaust airﬂow

F Cabinet cooling airﬂow

G 4 x Ø 14.2mm (0,6”)

Compressor should be bolted to the ﬂoor with

four M12 (0.5”) bolts using holes shown. Seal

base to ﬂoor with cork or rubber.

H INTELLISYS Controller

U Right

V Bottom

W Front

X Left view

Y Rear view

Z Plan view

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.3 PROCESS AND INSTRUMENTATION DIAGRAM N37/45KCC & N50/60HCC

T28

DFF

T21

2nd

1st

TWO STAGE ONLY

22381206

Revision B

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1 Air discharge

2 Compressor

3 Air ﬁlter

4 Vacuum switch 1VAC

5 Cooler, air

6 Cooler, coolant

7 Condensate discharge

8 Coolant ﬁlter

9 Pressure switch, coolant ﬁlter 1DPS

10 Drain valve, coolant

11 Temperature switch 1ATS

12 Air inlet check valve

13 Timed solenoid condensate drain.

(single stage)

14 Minimum pressure check valve

15 Moisture separator

16 Pressure transducer 4APT

17 Pressure relief valve

18 Scavenge ﬁlter / oriﬁce / check

19 Separator tank (primary/secondary)

20 Oil temperature control valve

21 Temperature transducer 2ATT

22 3SV blowdown solenoid valve

23 Drive motor

24 Blower motor

25 Cooling air blower

26 Cooling water inlet (W.C. only)

27 Cooling water outlet (W.C. only)

28 Pressure transducer 3APT

29 Pressure transducer 6APT

30 Dryer (customer supply equipment)

31 Line ﬁlters (customer equipment)

32 Receivers (customer equipment)

33 Dryer AUX warning

34 Line ﬁlter AUX warning

35 Receiver trap AUX warning

36 Remote pressure transducer 9APT (optional)

37 Water stop valve 4SV

38 Typical customer downstream air treatment

39 Anti − condensation valve 11SV

40 Cooling air exhaust box

41 Package discharge temperature transducer 4ATT

42 Injected coolant temperature sensor

43 Seal scavenge air supply

44 Seal scavenge line

45 Air intake temperature sensor. 1ATT

46 Electronic drain trap. Alternative to item 13.

(Standard equipment on 2 stage. Optional on

single stage).

45 Interstage pressure relief valve. (2 stage.)

46 Interstage pressure transducer. (2 stage)

49 Air/Coolant separator element

Air/coolant

Air

Coolant

Condensate

Cooling water (W.C. only)

Compressor enclosure

Sensor connection

Equipment downstream of

compressor

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.3 PROCESS AND INSTRUMENTATION DIAGRAM N55/75KCC & N75/100HCC

PIPING LEGEND

AIR/COOLANT

AIR

COOLANT

COOLING WATER

(W.C. ONLY)

CONDENSATE

T28

DFF

COMPRESSOR

ENCLOSURE

SENSOR

CONNECTION

EQUIPMENT

DOWNSTREAM

OF COMPRESSOR

T21

2nd

1st

TWO STAGE ONLY

23128994

Revision A

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1 AIR DISCHARGE

2 COMPRESSOR

3 AIR FILTER

4 VACUUM SWITCH 1VAC

5 COOLER, AIR

6 COOLER, COOLANT

7 CONDENSATE DISCHARGE

8 COOLANT FILTER (S)

9 PRESSURE SWITCH, COOLANT FILTER 1DPS

10 DRAIN VALVE, COOLANT

11 HIGH AIR TEMPERATURE SWITCH 1ATS

12 AIR INLET/CHECK VALVE

13 TIMED SOLENOID CONDENSATE DRAIN SINGLE

STAGE UNITS ONLY)

14 MINIMUM PRESSURE CHECK VALVE

15 MOISTURE SEPARATOR

16 PRESSURE TRANSDUCER 4APT

17 PRESSURE RELIEF VALVE

18 SCAVENGE FILTER / ORIFICE / CHECK VALVE

19 SEPARATOR TANK (PRIMARY/SECONDARY)

20 OIL TEMPERATURE CONTROL VALVE

21 TEMPERATURE SENSOR 2ATT

22 BLOWDOWN SOLENOID VALVE 3SV

23 DRIVE MOTOR - VARIABLE SPEED

24 MOTOR, BLOWER - VARIABLE SPEED

25 COOLING AIR BLOWER

26 COOLING WATER INLET (W.C. ONLY)

27 COOLING WATER OUTLET (W.C. ONLY)

28 PRESSURE TRANSDUCER 3APT (WET)

29 PRESSURE TRANSDUCER 6APT (DRY)

30 DRYER (CUSTOMER EQUIPMENT)

31 LINE FILTERS (CUSTOMER EQUIPMENT)

32 RECEIVERS (CUSTOMER EQUIPMENT)

33 DRYER AUX WARNING |

34 LINE FILTER AUX WARNING | AW1 (WIRE IN

SERIES)

35 RECEIVER TRAP AUX WARNING |

36 REMOTE AIR PRESSURE TRANSDUCER 9APT

(OPTIONAL)

37 WATER SHUTOFF VALVE 4SV (W.C.ONLY)

38 TYPICAL CUSTOMER DOWNSTREAM AIR

TREATMENT

39 ANTI-CONDENSATION VALVE 11SV

40 COOLING AIR EXHAUST BOX

41 PACKAGE DISCHARGE AIR TEMPERATURE SENSOR

4ATT

42 INJECTED COOLANT TEMPERATURE SENSOR

2CTT

43 ORIFICE, SEAL SCAVENGE AIR SUPPLY

44 SEAL SCAVENGE LINE DRAIN

45 PACKAGE INTAKE AIR TEMPERATURE SENSOR

1ATT

46 ELECTRONIC DRAIN TRAP-ALTERNATIVE TO ITEM

13 (STANDARD EQUIPMENT ON 2 STAGE

OPTIONAL ON SINGLE STAGE)

47 INTERSTAGE PRESSURE RELIEF VALVE (TWO

STAGE)

48 INTERSTAGE PRESSURE TRANSDUCER (TWO

STAGE)

49 AIR/COOLANT SEPARATOR ELEMENT

50 OIL COOLER OUT TEMPERATURE SENSOR 4CTT

Air/coolant

Air

Coolant

Condensate

Cooling water (W.C. only)

Compressor enclosure

Sensor connection

Equipment downstream of

compressor

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.3 PROCESS AND INSTRUMENTATION DIAGRAM N90/160K &

N125/200H SINGLE STAGE AND N75/160K & N100/200H TWO STAGE

DFF

T21

2nd

1st

TWO STAGE ONLY

T51

22099006

Revision C

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1 Air discharge

2 Compressor

3 Air ﬁlter

4 Vacuum switch 1VAC

5 Cooler, air

6 Cooler, coolant

7 Condensate discharge

8 Coolant ﬁlter

9 Pressure switch, coolant ﬁlter 1DPS

10 Drain valve, coolant

11 Temperature switch 1ATS

12 Air inlet check valve

13 Timed solenoid condensate drain.

(single stage only)

14 Minimum pressure check valve

15 Moisture separator

16 Pressure transducer 4APT

17 Pressure relief valve

18 Scavenge ﬁlter / oriﬁce / check

19 Separator tank (primary/secondary)

20 Oil temperature control valve

21 Temperature transducer 2ATT

22 3SV blowdown solenoid valve

23 Drive motor

24 Blower motor

25 Cooling air blower

26 Cooling water inlet (W.C. only)

27 Cooling water outlet (W.C. only)

28 Pressure transducer 3APT

29 Pressure transducer 6APT

30 Dryer (customer supply equipment)

31 Line ﬁlters (customer equipment)

32 Receivers (customer equipment)

33 Dryer AUX warning

34 Line ﬁlter AUX warning

35 Receiver trap AUX warning

36 Remote pressure transducer 9APT (optional)

37 Water stop valve 4SV (W.C. only)

38 Typical customer downstream air treatment

39 Anti − condensation valve 11SV

40 Cooling air exhaust box

41 Package discharge temperature transducer 4ATT

42 Injection temperature, transducer 2CTT

43 Seal scavenge air supply

44 Seal scavenge line

45 Temperature sensor 1ATT

46 Electronic drain trap. Alternative to item 13

(Optional on single stage)

47 Interstage pressure relief valve. 2 stage.

48 Interstage pressure transducer. 2 stage

49 Element, separator

50 Valve, aftercooler trim (W.C. only)

51 Valve, airend discharge temperature control

(W.C. only)

Air/coolant

Air

Coolant

Condensate

Cooling water (W.C. only)

Compressor enclosure

Sensor connection

Equipment downstream of

compressor

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.3 PROCESS AND INSTRUMENTATION DIAGRAM N250−300H TWO STAGE

DFF

T21

2nd

1st

22402135

Revision C

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1 Air discharge

2 Compressor

3 Air ﬁlter

4 Vacuum switch 1VAC

5 Cooler, air

6 Cooler, coolant

7 Condensate discharge

8 Coolant ﬁlter

9 Pressure switch, coolant ﬁlter 1DPS

10 Drain valve, coolant

11 Temperature switch 1ATS

12 Air inlet/adaptor

13 Coolant stop solenoid valve 5SV

14 Minimum pressure check valve

15 Moisture separator

16 Pressure transducer 4APT

17 Pressure relief valve

18 Scavenge ﬁlter / oriﬁce / check

19 Separator tank (primary/secondary)

20 Oil temperature control valve

21 Temperature transducer 2ATT

22 3SV blowdown solenoid valve

23 Drive motor

24 Blower motor

25 Cooling air blower

26 Cooling water inlet (W.C. only)

27 Cooling water outlet (W.C. only)

28 Pressure transducer 3APT

29 Pressure transducer 6APT

30 Dryer (customer supply equipment)

31 Line ﬁlters (customer equipment)

32 Receivers (customer equipment)

33 Dryer AUX warning

34 Line ﬁlter AUX warning

35 Receiver trap AUX warning

36 Remote pressure transducer 9APT (optional)

37 Water stop valve 4SV (W.C. only)

38 Typical customer downstream air treatment

39 Anti − condensation valve 11SV

40 Cooling air exhaust box

41 Package discharge temperature transducer 4ATT

42 Injection temperature, transducer 2CTT

43 Oriﬁce, seal scavenge air supply

44 Seal scavenge line

45 Temperature sensor 1ATT

46 Electronic drain trap

47 Interstage pressure relief valve. 2 stage.

48 Interstage pressure transducer. 2 stage

49 Element, separator

50 Valve, aftercooler trim (W.C. only)

51 Valve, airend discharge temperature control

(W.C. only)

52 Airend discharge check valve.

PIPING LEGEND

Air/coolant

Air

Coolant

Condensate

Cooling water (W.C. only)

Compressor enclosure

Sensor connection

Equipment downstream of

compressor

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC N37K − N45KCC / N5060H−CC A/C BLOWER VFD

T23

KM5-1

MCB9

HTR1 HTR2

T23

KM5-1

25 24

MCB9

HTR1 HTR2

220/230 V

50/60 HZ

100

121

110/120V

50/60 HZ CDV

OPT

CDV

OPT

KM5

1ATS

PSU

MCB1

MCB3

MCB5

CFO

110V

SG-NE 1

P10

KM1

1DPS

ES-2

1VAC

AW1

AW2

RFI

ES-1

12V DC

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

100

121

101 102

120

L1 L2 L3

211

212

213

214

215

216

217

1ATS

PSU

P10

KM1

1DPS

1VAC

RFI

12V DC

K2-1

110

112

113

114

105104

103

101 102

MCB4

125

200/230V-3ph-50/60Hz

PSU

RFI

SGN

CAB

3SV

DVF

RST

RSP

BLK

RED

SS1

SS3

TRR

RED

BLK

WHI BLK

WHI

RED

BLK

OPT

400/460V-3ph-50/60Hz

3SV

11SV

SS2

A+

B-

SC+

SC-

SD+

SD-

230V

200V

MMS

UVW

L1 L2

U V W

16 17 18

K1-2

242

240

241

55 -

214

215

252

253

P5P5

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

4-20 mA 9

FAULT

PORO

OPT

105 (110V)

120

126

9SV 9

T1ATT

WHI

BLK

+24V

START

STOP

KM1KM1

116

OUTPUT

+252

-253

18 CDE (OPT)

L1 L2 L3

PX6

PX1

102

115

L1 L2 L3

116

123

PX3

GND

RED

BLK

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

+ DC-BUS

+ RECTIFIER

OUT

K1-1

4-20mA

231

230

4-20mA

WHI

BLK

9APT

RED

WHI

GND

OPT

WHI

PX2

GND

AO1

A11+

A11-

A12

+24VDC

D11

D12

ENABLE

RED

KM5-1

MCB2

106

122

107

DVF

BLK

BLU

BRN

124

GRN/YEL

DVF3

22775738

Revision B

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

1ATS Switch, high airend discharge temperature

1DPS Switch, fouled oil ﬁlter

1VAC Switch, fouled air ﬁlter

1ATT Sensor, airend inlet.

2ATT Sensor, airend discharge temperature

2CTT Sensor, injected coolant temperature

3APT Transducer, sump pressure, wet side

3SV Valve, blowdown solenoid

4APT Transducer, package air discharge pressure

4ATT Sensor, package discharge temperature

4SV Valve, water stop solenoid (W/C only)

6APT Transducer, sump air pressure, dry side

9APT Transmitter, remote air pressure (optional)

9SV Valve, condensate drain

11SV Valve, anti − condensation solenoid

AT Autotransformer (if ﬁtted)

AW1 Auxiliary warning 1

AW2 Auxiliary warning 2

BP Backplate

C Capacitor

CAB Cabinet

CDE Condensate drain error

CDV Condensate drain valve. (if ﬁtted)

CFO Common fault output

CK Choke

EXC External communications

DR Drive

DVF Fan, drive box ventilation

EB Earth bar

ES Switch, emergency stop

FD Drive, blower

FM Motor, blower

GND Ground

HC Heater circuit

HTR1 Heater, spacer 25 Watts

HTR2 Heater, spacer 25 Watts

K1 Relay, run

K2 Relay fault

KM1 Contactor, main motor

KM5 Contactor, Drive ventilation fan.

MCB1 Breaker, miniature circuit, transformer

MCB2 Breaker, miniature circuit, DVFMCB3

Breaker, miniature circuit, control circuits

MCB4 Breaker, miniature circuit, VFD supply

MCB5 Breaker, miniature circuit, PSU

MCB9 Breaker, miniature circuit, heater

MF Mains ﬁlter (if ﬁtted)

MM Motor, main

MMS Breaker, blower motor

OPT Optional

OV Zero voltage

PE Protected earth

PORO Power outage restart option (optional)

PSU Power supply unit

RFI Filter, radio frequency interference

RSP Remote stop

RST Remote start

SGNE Controller, Intellisys

SL Serial link

SS1−3 Relay, solid state

ST Service tool

T1 Transformer, control

TH Thermostat

TRR True running relay

WR General warning

Colors

BLK Black

BLU Blue

BRO Brown

GRE Green

PIN Pink

RED Red

SCR Screened

VIO Violet

WHI White

YEL Yellow

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

8.0 GENERAL INFORMATION

KEY

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N5575KCC / N75100HCC A/C BLOWER VFD

KM5

1ATS

PSU

MCB1

MCB3

MCB5

CFO

110V

SG-NE 1

P10

KM1

1DPS

ES-2

1VAC

AW1

AW2

RFI

ES-1

12V DC

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

100

121

101 102

120

L1 L2 L3

211

212

213

214

215

216

217

1ATS

PSU

P10

KM1

1DPS

1VAC

RFI

12V DC

K2-1

110

112

113

114

105104

103

101 102

MCB4

125

200/230V-3ph-50/60Hz

PSU

RFI

SGN

CAB

3SV

DVF

RST

RSP

BLK

RED

SS1

SS3

TRR

RED

BLK

WHI BLK

WHI

RED

BLK

OPT

400/460V-3ph-50/60Hz

3SV

11SV

SS2

A+

B-

SC+

SC-

SD+

SD-

230V

200V

MMS

UVW

L1 L2

U V W

16 17 18

K1-2

242

240

241

55 -

214

215

252

253

P5P5

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

4-20 mA 9

FAULT

PORO

OPT

105 (110V)

120

126

9SV 9

T1ATT

WHI

BLK

+24V

START

STOP

KM1KM1

116

OUTPUT

+252

-253

18 CDE (OPT)

4CTT

WHI

BLK T

L1 L2 L3

PX6

PX1

102

115

L1 L2 L3

116

123

PX3

GND

RED

BLK

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

+ DC-BUS

+ RECTIFIER

OUT

K1-1

4-20mA

231

230

4-20mA

WHI

BLK

9APT

RED

WHI

GND

OPT

WHI

PX2

GND

AO1

A11+

A11-

A12

+24VDC

D11

D12

ENABLE

RED

KM5-1

MCB2

106

122

107

DVF

BLK

BLU

BRN

124

GRN/YEL

DVF3

T23

KM5-1

MCB9

HTR1 HTR2

T23

KM5-1

25 24

MCB9

HTR1 HTR2

220/230 V

50/60 HZ

100

121

110/120V

50/60 HZ CDV

OPT

CDV

OPT

23131337

Revision A

LABEL DESCRIPTION

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

1ATT SENSOR, AIREND INLET

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

LABEL DESCRIPTION

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

4CTT SENSOR, OIL COOLER OUT TEMPERATURE

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

4SV VALVE, WATER STOP SOLENOID (W/C ONLY)

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSMITTER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

EXC EXTERNAL COMMUNICATIONS

DR DRIVE

DVF FAN, DRIVE BOX VENTILATION

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

FD DRIVE, BLOWER

FM MOTOR, BLOWER

GND GROUND

HTR1 HEATER, SPACER 25 WATTS

HTR2 HEATER, SPACER 25 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM5 CONTACTOR, DRIVE VENTILATION FAN

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, DVF

MCB3 BREAKER, MINIATURE CIRCUIT, CONTROL

CIRCUITS

MCB4 BREAKER, MINIATURE CIRCUIT, VFD SUPPLY

MCB5 BREAKER, MINATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATERS

MF MAINS FILTER (IF FITTED)

MM MOTOR, MAIN

MMS BREAKER, FAN MOTOR

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTED EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNE CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

WR GENERAL WARNING

COLORS

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N37/45KCC/N50/60HCC W/C

KM4

1ATS

PSU

MCB1

MCB3

MCB5

CFO

110V

SGNE 1

P10

KM1

1DPS

ES-2

1VAC

AW1

AW2

RFI

ES-1

12V DC

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

100

121

101 102

120

L1 L2 L3

211

212

213

214

215

216

217

1ATS

PSU

P10

KM1

1DPS

1VAC

RFI

12V DC

K2-1

110

112

113

114

105104

103101 102

MCB4

125

200/230V-3ph-50/60Hz

PSU

RFI

SGN

CAB

3SV

4SV

RST

RSP

BLK

RED

SS1

SS3

TRR

RED

BLK

WHI BLK

WHI

RED

BLK

OPT

400/460V-3ph-50/60Hz

3SV

11SV

SS2

A+

B-

SC+

SC-

SD+

SD-

230V

200V

MMS

UVW

16 17 18

P5P5

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

4-20 mA 9

PORO

OPT

105 (110V)

120

126

9SV 9

KM1KM1

116

OUTPUT

18 CDE (OPT)

KM4

KM5

4SV

MMS-1

9SV

DVF

KM5-1

MCB5

106

122

107

DVF

BLK

BLU

BRN

124

GRN/YEL

DVF3

PX6

PX1

102

115

L2 L3

116

123

PX3

GND

RED

BLK

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

+ DC-BUS

+ RECTIFIER

OUT

K1-1

4-20mA

231

230

4-20mA

WHI

BLK

9APT

RED

WHI

GND

OPT

WHI

PX2

GND

AO1

A11+

A11-

A12

+24VDC

D11

D12

ENABLE

RED

T23

KM5-1

MCB9

HTR1 HTR2

T23

KM5-1

25 24

MCB9

HTR1 HTR2

220/230 V

50/60 HZ

100

121

110/120V

50/60 HZ CDV

OPT

CDV

OPT

22776520

Revision B

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

1ATT SENSOR, AIREND INLET

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

4SV VALVE, WATER STOP SOLENOID (W/C ONLY)

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSMITTER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

EXC EXTERNAL COMMUNICATIONS

DR DRIVE

DVF FAN, DRIVE BOX VENTILATION

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

FD DRIVE, BLOWER (A/C ONLY)

FM MOTOR, BLOWER

GND GROUND

HTR1 HEATER, SPACER 25 WATTS

HTR2 HEATER, SPACER 25 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM4 CONTACTOR, FAN MOTOR (W/C ONLY)

KM5 CONTACTOR, DRIVE VENTILATION FAN

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, DVF

MCB3 BREAKER, MINIATURE CIRCUIT, VFD SUPPLY

MCB4 BREAKER, MINIATURE CIRCUIT, VFD SUPPLY

MCB5 BREAKER, MINIATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATERS

MF MAINS FILTER (IF FITTED)

MM MOTOR, MAIN

MMS BREAKER, FAN MOTOR

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTED EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNE CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

WR GENERAL WARNING

COLOR

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N5575KCC / N75100HCC W/C

KM4

1ATS

PSU

MCB1

MCB3

MCB5

CFO

110V

SGNE 1

P10

KM1

1DPS

ES-2

1VAC

AW1

AW2

RFI

ES-1

12V DC

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

100

121

101 102

120

L1 L2 L3

211

212

213

214

215

216

217

1ATS

PSU

P10

KM1

1DPS

1VAC

RFI

12V DC

K2-1

110

112

113

114

105104

103101 102

MCB4

125

200/230V-3ph-50/60Hz

PSU

RFI

SGN

CAB

3SV

4SV

RST

RSP

BLK

RED

SS1

SS3

TRR

RED

BLK

WHI BLK

WHI

RED

BLK

OPT

400/460V-3ph-50/60Hz

3SV

11SV

SS2

A+

B-

SC+

SC-

SD+

SD-

230V

200V

MMS

UVW

16 17 18

P5P5

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

2CTT

2ATT

4ATT

4APT

3APT

6APT

WHI

BLK

4-20 mA 9

PORO

OPT

105 (110V)

120

126

9SV 9

KM1KM1

116

OUTPUT

18 CDE (OPT)

KM4

KM5

4SV

MMS-1

9SV

DVF

4CTT

WHI

BLK T

KM5-1

MCB5

106

122

107

DVF

BLK

BLU

BRN

124

GRN/YEL

DVF3

PX6

PX1

102

115

L2 L3

116

123

PX3

GND

RED

BLK

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

+ DC-BUS

+ RECTIFIER

OUT

K1-1

4-20mA

231

230

4-20mA

WHI

BLK

9APT

RED

WHI

GND

OPT

WHI

PX2

GND

AO1

A11+

A11-

A12

+24VDC

D11

D12

ENABLE

RED

T23

KM5-1

MCB9

HTR1 HTR2

T23

KM5-1

25 24

MCB9

HTR1 HTR2

220/230 V

50/60 HZ

100

121

110/120V

50/60 HZ CDV

OPT

CDV

OPT

23131345

Revision A

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

1ATT SENSOR, AIREND INLET

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

4CTT SENSOR, OIL COOLER OUT TEMPERATURE

4SV VALVE, WATER STOP SOLENOID (W/C ONLY)

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSMITTER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

EXC EXTERNAL COMMUNICATIONS

DR DRIVE

DVF FAN, DRIVE BOX VENTILATION

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

FD DRIVE, BLOWER (A/C ONLY)

FM MOTOR, BLOWER

GND GROUND

HTR1 HEATER, SPACER 25 WATTS

HTR2 HEATER, SPACER 25 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM4 CONTACTOR, FAN MOTOR (W/C ONLY)

KM5 CONTACTOR, DRIVE VENTILATION FAN

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, DVF

MCB3 BREAKER, MINIATURE CIRCUIT, VFD SUPPLY

MCB4 BREAKER, MINIATURE CIRCUIT, VFD SUPPLY

MCB5 BREAKER, MINIATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATERS

MF MAINS FILTER (IF FITTED)

MM MOTOR, MAIN

MMS BREAKER, FAN MOTOR

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTED EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNE CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

WR GENERAL WARNING

COLOR

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N75160KCC / N125200HCC A/C

1ATS

PSU

MCB1

KM1

MCB2

MCB4

CFO

SG-Ne 1

P10

KM1

1DPS

ES-2

1VAC

AW1

2CTT

2ATT

4ATT

4APT

3APT

6APT

RFI

ES-1

12V DC

P2P1

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

101 102

120

211

212

213

214

215

216

217

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

P10

12V DC

K2 WHI

BLK

PSU

RFI

SGNe

CAB

3SV

11SV

RST

RSP

BLK

RED

SS1

SS3

TRR

PORO

OPT

RED

BLK

WHI BLK

WHI

RED

BLK

3SV

11SV 1

105 (110V)

120

SS2

A+

B-

SC+

SC-

SD+

SD-

MCB3

200v

110v

MMS1

UVW

121

153

150 151

9SV

L1 L2

U V W

16 17 18

K1-2

242 FD

SHT 2

240

241

4-20 mA

OUTPUT

FAULT

KM5

214

215

252

253

252

CDV

+12V

SIGNAL

AW2

116 9

9SV

1ATT

WHI

BLK

CDE

18 (OPT)

11 WHI

BLK

RED

HTR

V2APT

2 STG

ONLY

L1 L2 L3

MMS2

KM5

14 15

U V W

380-480V

50/60 Hz 3ph + PE

214A

MMS1-1

214B

MMS2-1

10 4CTT

WHI

BLK T

L1 L2 L3

PX6

K1-1 1-STG ONLY P

4-20mA

PX1

PX2

102

123

PX3

231

230

4-20mA

152

151

WHI

BLK

9APT

WHI

RED

GND

RED

BLK

OPT

RED

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

WHI

AO1

AI1+

AI1-

AI2

+24Vdc

DI1

DI2

ENABLE

GND

+ DC-BUS

RECTIFIER

K1-1 2-STG ONLY

230

L1 L2 L3

T2322

KM5-2

100

121

HEATER CIRCUITS:-

MCB9

HTR1 MF

MAIN INPUT

TERMINALS

OPTIONS

110/120 V

50/60 HZ

FROM SHT 1

CDV OPT OR

L1 L2 L3

MAINS FILTER AUTO - TRANSFORMER

LOAD

L2 L3

L1 L2

LINE

HTR2

T2322

KM5-2

100

121

MCB9

HTR1

CDV

121

OPT

HTR2

MCB10

110/120 V

50/60 HZ

EXTERNAL SUPPLY

F10

T2322

KM5-2

HTR1 HTR2

MCB10

220/230 V

50/60 HZ

EXTERNAL SUPPLY

F10

SUPPLIED BY CUSTOMER

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

110 / 120 V SUPPLY

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

220 / 230 V SUPPLY

STANDARD HEATER

CONNECTIONS AS

DELIVERED

110/120 V

50/60 HZ

FROM SHT 1

22093058

Revision M

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1ATT SENSOR, INLET TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

2APT SENSOR, INTERSTAGE PRESSURE (2STG ONLY)

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

4CTT SENSOR, OIL COOLER OUT TEMPERATURE

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSDUCER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID 1

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR (OPTIONAL)

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

DR DRIVE

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

EXC EXTERNAL COMMUNICATIONS

F10 FUSE, EXTERNAL HEATER SUPPLY

FD FAN DRIVE

FM MOTOR, BLOWER

GND GROUND

HB HEATSINK BLOWER

HTR1 HEATER, 125 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM5 CONTACTOR, HEATSINK BLOWER

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, CONTROL

CIRCUITS

MCB3 BREAKER, MINIATURE CIRCUIT, DR

MCB4 BREAKER, MINIATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATER

MCB10 BREAKER, MINIATURE CIRCUIT, HEATER

(EXTERNAL)

MF MAINS FILTER (IF FITTED)

MM MOTOR, MAIN

MMS1 BREAKER, FAN MOTOR

MMS2 BREAKER, HEATSINK BLOWER

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTIVE EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNe CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

COLOR

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N75160KCC / N125200HCC W/C

1ATS

PSU

MCB1

MCB2

MCB4

CFO

SG-Ne 1

P10

KM1

1DPS

ES-2

1VAC

AW1

2CTT

2ATT

4ATT

4APT

3APT

6APT

RFI

ES-1

12V DC

P2P1

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

101 102

120

211

212

213

216

217

WHI

BLK

WHI

BLK

WHI

BLK

P10

12V DC

WHI

BLK

PSU

RFI

SGNe

CAB

3SV

11SV

RST

RSP

BLK

RED

SS1

SS3

TRR

PORO

OPT

RED

BLK

WHI BLK

WHI

RED

BLK

3SV

11SV

102 (110V)

120

SS2

A+

B-

SC+

SC-

SD+

SD-

MCB3

200v

110v

MMS1

121

153

150 151

9SV

SHT 2

4-20 mA

OUTPUT

CDV

AW2

116 9

9SV

1ATT

WHI

BLK

CDE

18 (OPT)

11 WHI

BLK

RED

HTR

V2APT

2 STG

ONLY

L1 L2 L3

380-480V

50/60 Hz 3ph + PE

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

MMS2

KM5

KM1

KM5

4SV

U V W U V W

MMS1-1

214

215 MMS2-1

214A

10 4CTT

WHI

BLK T

L1 L2 L3

PX6

PX1

102

123

PX3

152

151

GND

RED

BLK

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

+ DC-BUS

RECTIFIER

K1-1 1-STG ONLY P

4-20mA

PX2

231

230

4-20mA

WHI

BLK

9APT

WHI

RED

OPT

RED

WHI

AO1

AI1+

AI1-

AI2

+24Vdc

DI1

DI2

ENABLE

GND

K1-1 2-STG ONLY

230

L1 L2 L3

T2322

KM5-2

100

121

HEATER CIRCUITS:-

MCB9

HTR1

MAIN INPUT

TERMINALS

OPTIONS

110/120 V

50/60 HZ

FROM SHT 1

CDV OPT

L1 L2 L3

MAINS FILTER AUTO - TRANSFORMER

LOAD

L2 L3

L1 L2

LINE

HTR2

T2322

KM5-2

100

121

MCB9

HTR1

CDV

121

OPT

HTR2

MCB10

110/120 V

50/60 HZ

EXTERNAL SUPPLY

F10

T2322

KM5-2

HTR1 HTR2

MCB10

220/230 V

50/60 HZ

EXTERNAL SUPPLY

F10

SUPPLIED BY CUSTOMER

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

110 / 120 V SUPPLY

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

220 / 230 V SUPPLY

STANDARD HEATER

CONNECTIONS AS

DELIVERED

110/120 V

50/60 HZ

FROM SHT 1

22258891

Revision E

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1ATT SENSOR, INLET TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

2APT SENSOR, INTERSTAGE PRESSURE (2STG ONLY)

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

4CTT SENSOR, OIL COOLER OUT TEMPERATURE

4SV VALVE, WATER STOP

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSMITTER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID 1

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR (OPTIONAL)

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

DR DRIVE

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

EXC EXTERNAL COMMUNICATIONS

F10 FUSE, EXTERNAL HEATER SUPPLY

FM MOTOR, BLOWER

GND GROUND

HB HEATSINK BLOWER

HTR1 HEATER, 125 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM5 CONTACTOR, HEATSINK BLOWER

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, CONTROL

CIRCUITS

MCB3 BREAKER, MINIATURE CIRCUIT, DR

MCB4 BREAKER, MINIATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATER

MCB10 BREAKER, MINIATURE CIRCUIT, HEATER

(EXTERNAL)

MF MAINS FILTER (IF FITTED)

MM MOTOR, MAIN

MMS1 BREAKER, FAN MOTOR

MMS2 BREAKER, HEATSINK BLOWER

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTED EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNe CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

COLOR

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.4 WIRING SCHEMATIC  N250300H

1ATS

PSU

MCB1

KM1

MCB2

MCB4

CFO

SG-Ne 1

P10

KM1

1DPS

ES-2

1VAC

AW1

2CTT

2ATT

4ATT

4APT

3APT

6APT

RFI

ES-1

12V DC

P2P1

K2-1

EXC

110

111

112

113

114

105

120

104

103

210

200

201

108

101 102

120

211

212

213

214

215

216

217

WHI

BLK

WHI

BLK

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

P10

12V DC

K2 WHI

BLK

PSU

RFI

SGNe

CAB

3SV

11SV

RST

RSP

BLK

RED

SS1

SS3

TRR

PORO

OPT

RED

BLK

WHI BLK

WHI

RED

BLK

3SV

11SV 1

105 (110V)

120

SS2

A+

B-

SC+

SC-

SD+

SD-

MCB3

200v

110v

MMS1

UVW

121

153

150 151

9SV

L1 L2

U V W

16 17 18

K1-2

242 FD

SHT 2

240

241

4-20 mA

OUTPUT

FAULT

KM5

214

215

252

253

252

CDV

+12V

SIGNAL

AW2

116 9

9SV

1ATT

WHI

BLK

CDE

18 (OPT)

11 WHI

BLK

RED

HTR

V2APT

2 STG

ONLY

L1 L2 L3

380-480V

50/60 Hz 3ph + PE

214A

MMS1-1

214B

MMS2-1

5SV

K1-3

MCB5

230v

KM5-1

DVF

124

106 107

122

115

L1 L2 L3

PX6

K1-1 1-STG ONLY P

4-20mA

PX1

PX2

102

123

PX3

231

230

4-20mA

152

151

WHI

BLK

9APT

WHI

RED

GND

RED

BLK

OPT

RED

PX4

YEL

BLK

RED

GRE

BRO

BLU

VIO

GND

WHI

AO1

AI1+

AI1-

AI2

+24Vdc

DI1

DI2

ENABLE

GND

+ DC-BUS

RECTIFIER

K1-1 2-STG ONLY

230

L1 L2 L3

T2322

KM5-2

100

121

HEATER CIRCUITS:-

MCB9

HTR1

MAIN INPUT

TERMINALS

OPTIONS

110/120 V

50/60 HZ

FROM SHT 1

CDV OPT

L1 L2 L3

MAINS FILTER AUTO - TRANSFORMER

LOAD

L2 L3

L1 L2

LINE

HTR2

T2322

KM5-2

100

121

MCB9

HTR1

CDV

121

OPT

HTR2

MCB10

110/120 V

50/60 HZ

EXTERNAL SUPPLY

F10

T2322

KM5-2

HTR1 HTR2

MCB10

220/230 V

50/60 HZ

EXTERNAL SUPPLY

F10

SUPPLIED BY CUSTOMER

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

110 / 120 V SUPPLY

ALTERNATIVE HEATER

CONNECTION FOR EXTERNAL

220 / 230 V SUPPLY

STANDARD HEATER

CONNECTIONS AS

DELIVERED

110/120 V

50/60 HZ

FROM SHT 1

22407100

Revision C

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

KEY

1ATS SWITCH, HIGH AIR END DISCHARGE

TEMPERATURE

1ATT SENSOR, INLET TEMPERATURE

1DPS SWITCH, FOULED OIL FILTER

1VAC SWITCH, FOULED AIR FILTER

2APT SENSOR, INTERSTAGE PRESSURE (2STG ONLY)

2ATT SENSOR, AIREND DISCHARGE TEMPERATURE

2CTT SENSOR, INJECTED COOLENT TEMPERATURE

3APT TRANSDUCER, SUMP PRESSURE, WET SIDE

3SV VALVE, BLOWDOWN SOLENOID

4APT TRANSDUCER, PACKAGE AIR DISCHARGE

PRESSURE

4ATT SENSOR, PACKAGE AIR DISCHARGE

TEMPERATURE

6APT TRANSDUCER, SUMP AIR PRESSURE, DRY SIDE

9APT TRANSDUCER, REMOTE AIR PRESSURE

(OPTIONAL)

9SV VALVE, CONDENSATE DRAIN

11SV VALVE, ANTI-CONDENSATION SOLENOID 1

AT AUTOTRANSFORMER (IF FITTED)

AW1 AUXILIARY WARNING 1

AW2 AUXILIARY WARNING 2

BP BACKPLATE

C CAPACITOR

CAB CABINET

CDE CONDENSATE DRAIN ERROR (OPTIONAL)

CDV CONDENSATE DRAIN VALVE (IF FITTED)

CFO COMMON FAULT OUTPUT

CK CHOKE

DR DRIVE

EB EARTH BAR

ES SWITCH, EMERGENCY STOP

EXC EXTERNAL COMMUNICATIONS

F10 FUSE, EXTERNAL HEATER SUPPLY

FD FAN DRIVE

FM MOTOR, BLOWER

GND GROUND

HTR1 HEATER, 125 WATTS

K1 RELAY, RUN

K2 RELAY, FAULT

KM1 CONTACTOR, MAIN MOTOR

KM5 CONTACTOR, HEATSINK BLOWER

MCB1 BREAKER, MINIATURE CIRCUIT, TRANSFORMER

MCB2 BREAKER, MINIATURE CIRCUIT, CONTROL

CIRCUITS

MCB3 BREAKER, MINIATURE CIRCUIT, DR

MCB4 BREAKER, MINIATURE CIRCUIT, PSU

MCB9 BREAKER, MINIATURE CIRCUIT, HEATER

MCB10 BREAKER, MINIATURE CIRCUIT, HEATER

(EXTERNAL)

MF MAINS FILTER

MM MOTOR, MAIN

MMS1 BREAKER, FAN MOTOR

OPT OPTIONAL

OV ZERO VOLTAGE

PE PROTECTIVE EARTH

PORO POWER OUTAGE RESTART OPTION (OPTIONAL)

PSU POWER SUPPLY UNIT

RFI FILTER, RADIO FREQUENCY INTERFERENCE

RSP REMOTE STOP

RST REMOTE START

SGNe CONTROLLER, INTELLISYS

SL SERIAL LINK

SS1-3 RELAY, SOLID STATE

ST SERVICE TOOL

T1 TRANSFORMER, CONTROL

TH THERMOSTAT

TRR TRUE RUNNING

DVF FAN, DRIVE VENTILATION

5SV VALVE, COOLANT STOP

COLOR

BLK BLACK

BLU BLUE

BRO BROWN

GRE GREEN

PIN PINK

RED RED

SCR SCREEN

VIO VIOLET

WHI WHITE

YEL YELLOW

Wires

Numbers Function Wire color

1−99

100−199

200−299

300−399

Power

AC Control

DC Control

Auxiliary

Black

Red

Blue

Orange

NOTES:

1. FACTORY SUPPLIED AS SHOWN BY CONNECTION TO

OUTPUT OF CONTROL TRANSFORMER T1. WIRE NUMBER

100 & 121.

2. ALTERNATIVELY THE SUPPLY MAY BE TAKEN FROM AN

INDEPENDENT SOURCE: IN THAT CASE, FACTORY

SUPPLIED CONNECTION MUST BE DISCONNECTED.

3. ENSURE PARALLEL CONNECTION OF HEATERS.

NOTES:

1. CONNECTIONS FOR USE ON 200/230V SYSTEMS. THE

SUPPLY IS INDEPENDENT OF THE MAIN COMPRESSOR. THE

CUSTOMER MUST PROVIDE AN ISOLATOR / DISCONNECT

SWITCH ADJACENT TO THE MACHINE FOR THIS SUPPLY. IN

THAT CASE, FACTORY SUPPLIED CONNECTION MUST BE

DISCONNECTED.

2. ENSURE SERIES CONNECTION OF HEATERS.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

8.0 GENERAL INFORMATION

8.5 GENERAL DESCRIPTION

The compressor is an electric motor driven, contact

cooled screw compressor, complete with all necessary

components piped, wired and baseplate mounted. It is a

totally self contained air compressor package.

The standard compressor is designed to operate in an

ambient range of 1.7° C to 46° C (35° F to 115° F). The

standard maximum temperature of 46° C (115° F) is

applicable up to an elevation of 1000m (3280ft) above

sea level. Above this altitude signiﬁcant reductions in

ambient temperature are required if a standard motor is

to be used.

The compressor is managed by the onboard electronic

controller. The controller and drive system operate

together to vary the speed of the compressor to deliver

compressed air at the target pressure.

Panel instrumentation is provided to indicate the

compressor operating conditions and general status.

The air/coolant mixture discharges from the compressor

into the separation system. This system removes all

but a few PPM of the coolant from the discharge air.

The coolant is returned to the cooling system and the

air passes to the aftercooler and out of the compressor

through the moisture separator.

Air is pulled into the machine by the cooling blower

(N250−300H use a propeller fan for cooling) and through

the combined cooler / aftercooler.

By cooling the discharge air, much of the water vapor

naturally contained in the air is condensed and is drained

from the built−in moisture separator and drain.

The coolant system consists of a sump, cooler,

thermostatic valve, anti−condensation valve and a

ﬁlter. When the unit is operating, coolant is forced by

air pressure from the separator tank to the thermostatic

element. The position of the element (a direct result

of coolant temperature) will determine whether the

coolant circulates through the cooler, bypasses the

cooler, or mixes the two paths together to maintain

an optimum compressor injection temperature. The

two position anti−condensation valve can reduce the

coolant ﬂow and hence the temperature rise of coolant

through the compressor. This temperature is controlled

to preclude the possibility of water vapor condensing. By

injecting coolant at a suﬃciently high temperature, the

discharge air coolant mixture temperature will be kept

above the dew point. On the N90/160K, N125/200H−SS,

N75/160K−2S, N100/200H−2S and N250/300H−2S, the

system is enhanced by a control logic that varies the

cooling blower speed dependant on the intake and

discharge temperatures and hence controls the injection

temperature even closer while saving blower motor

energy.

The compressor is provided with a temperature sensor

which will shut the unit down in case of excessive

temperature, 109° C (228° F).

Eﬀective coolant ﬁltration is provided by the use of a

screw on, heavy duty coolant ﬁlter.

NOTICE

Nirvana air comrpessors are factory ﬁlled with SSR ULTRA COOLANT which is designed to operate for 8,000

hours or two years, whichever comes ﬁrst.

Units supplied with optional Food Grade Coolant are designed to operate 1000 hours or 6 months, whichever

comes ﬁrst.

The coolant must be changed at these intervals to avoid breakdown and equipment damage.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 65

9.0 OPERATING INSTRUCTIONS

9.1 BASIC OPERATION

WARNING

Ensure that all protective covers/guards are in place before

attempting to start the machine.

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.

NOTICE

The language and units of measure displayed on the Intellisys

controller will be pre−set before leaving the factory. If these

are required to be changed, contact your local Ingersoll Rand

Service Department, Distributor or Air Center.

Prior to starting

Refer to diagram T5716 above.

Check that the coolant level is at least visible in the center of

the sight glass, add coolant if necessary. Refer to maintenance

procedures for setting correct level.

Ensure that the discharge air isolation valve is open. Switch on the

main electrical isolation switch. The control panel will illuminate,

indicating that the line and control voltages are available.

The contrast of the display may be adjusted by turning the small

screw which is on the right hand side of the controller when

accessed through the starter cabinet door.

Initial check sequence

The controller will perform an initial check sequence if the

compressor (1) receives initial power to the controller or (2) has

experienced an alarm reset. While the initial check sequence occurs,

the controller will display a “Checking Machine” message.

During the initial check sequence, the controller will check the

control system for proper operation. During this time, if any items

are found inoperative an alarm will occur and the unit will not start.

After completion of the initial check sequence, the controller will

then display “READY TO START’. This process should be completed

within 10 seconds.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

Start sequence

The compressor will initially start by the operator pressing the

local start button or receiving a remote start command. The

compressor will start loaded and will ramp up the motor speed to

its minimum speed. Once the minimum speed has been achieved,

the compressor will begin to control pressure by using its speed

regulation. When the system pressure reaches the target pressure,

the compressor will start to slow. If the system pressure rises to

the immediate stop pressure setpoint the compressor will stop.

If the system pressure rises to the auto stop setpoint and the

compressor is at minimum speed, if the blowdown mode is set to

oﬀ, the compressor will stop. However if the blowdown mode is set

to on, the compressor will open the blowdown valve for up to 10

seconds or until the pressure in the separator tank falls to 2.4 Bar (35

psi) before stopping. The compressor will restart once the system

pressure falls below the target pressure.

Stop sequence

The compressor can be stopped by a local or remote stop, a

shutdown due to an alarm or an emergency stop. All of the above

conditions will cause the compressor to stop immediately, except

the local or remote stop. A local or remote stop will open the

blowdown valve and the compressor will run for up to 10 seconds

or until the pressure in the separator tank falls to 35 psi before

stopping. The compressor will stop if the system pressure reaches

the automatic stop or immediate stop pressure setpoints. However,

if the compressor stops for this reason, it will automatically restart

when the system pressure falls below the target pressure.

The N250/300H − 2S compressor will operate for 30 seconds with

the blowdown valve open and at reduced speed before stopping.

This sequence occurs for local or remote stops and when the

system pressure reaches the automatic or immediate stop pressure

setpoints. The compressor will automatically restart when the

system pressure falls below the target pressure.

Important: Depress the emergency stop button when the

compressor must be stopped immediately.

Blowdown mode

All 2 stage compressors will blowdown when compressor is signaled

to stop. Intellisys indicates that Blowdown Mode is ”not installed”.

If the blowdown mode is set to on, the compressor will open the

blowdown valve anytime that it stops. This will release pressure

from the airend and separator tank. If the blowdown mode is set to

oﬀ, the blowdown valve will remain closed when the compressor

stops due to an automatic stop

Blower control N37/160K−1S, N50/200H−1S &

N75/160−2S, N100/200H−2S

Fan control N250/300H−2S

The blower speed varies in some conditions to assist in controlling

the coolant injection temperature. The blower motor has its own

variable speed drive and will ramp up and down as the compressor

starts and stops.

Stopping the machine in an emergency

If the machine has to be stopped in an emergency DEPRESS

THE EMERGENCY STOP BUTTON LOCATED UNDERNEATH THE

INSTRUMENT PANEL.

This will over−ride the normal unload/stop button and will

immediately stop the machine.

Restarting after an emergency

If the unit has been switched oﬀ because of a machine malfunction,

identify and correct the fault before attempting to restart.

If the unit has been switched oﬀ for reasons of safety, ensure that

the machine can be operated safely before restarting.

Refer to the PRIOR TO STARTING and START SEQUENCE instructions

earlier in this section before restarting the machine.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 67

9.0 OPERATING INSTRUCTIONS

9.2 INTELLISYS CONTROLS

1. Emergency stop

Pressing this switch stops the compressor immediately. The

blowdown valve will open to vent pressure in the separator tank to

atmosphere. Note: the system downstream of the separator tank

may still contain pressure. The compressors can not be restarted

until the switch is manually reset. Turn the switch knob clockwise

and press the reset button twice to reset.

On reset the controller will display a message, indicating that the

compressor is ready to start.

2. Start

Pressing this button will activate the start sequence.

3. Stop

Pressing this button will activate the stop sequence.

4. F1

Not used.

5. F2

Not used.

6. Arrows

These up and down buttons have multiple functions relating to

the right half of the display screen. When lists are presented, the

buttons are used to move up or down through the items on the

list. The small arrow(s) displayed in the upper right hand corner of

the display screen indicate when you can move up (designated by

arrow head pointing up) and/or down (designated by arrow head

pointing down) through the list.

When the value of a speciﬁc machine operating parameter is

highlighted on the display screen for the purpose of changing that

value, the buttons are used to change the value itself.

7. Display buttons

The functions of the three buttons below the display screen

change and are deﬁned by the words immediately above them in

the bottom line of the screen. Each function, such as MAIN MENU,

STATUS, etc., is described in appropriate sections in this manual.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

9.3 DISPLAY SCREEN

The display screen is divided into three functional areas, as seen in

the typical CURRENT STATUS screen shown here.

The left side continuously shows the package discharge pressure

in large numbers with the line directly below showing the running

condition of the machine

100 PSI

READY TO START

− CURRENT STATUS −

PACKAGE DISCHARGE

TEMP

102° F

AIREND DISCHARGE

TEMP

192° F

MAIN MENU

The right side shows various items or lists such as the machine’s

CURRENT STATUS readings, the MAIN MENU, the OPERATOR

SETPOINTS list, etc. Any of the lists can be moved up or down by

pressing the arrow buttons to the right of the screen. The small

arrow(s) displayed in the upper right corner of the screen indicate

when you can move up and/or down through a list. The arrow

buttons are also used to change an individual item’s value. At

certain times, items and/or their values are “highlighted”. This means

that they are displayed as light characters on a dark background.

The bottom of the screen is divided into thirds with the words in

each small box showing the function of the button directly beneath

it. The words will change in these boxes depending on what

actions are permitted at any particular time. The action resulting

from pressing each of these buttons is indicated in the Operator

Panel Flow Diagram later in this section. This can be used as a quick

reference of how to step the controller screen through any desired

function.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 69

9.0 OPERATING INSTRUCTIONS

9.4 CURRENT STATUS SCREEN

The CURRENT STATUS screen is considered to be the “normal”

display that the controller shows.

The following items and their present values can be displayed on

the right side of the screen by pressing the up and down arrow

buttons

The controller automatically returns the display to this CURRENT

STATUS screen from other screens if no buttons are pressed within

30 seconds.

Use the UP and DOWN arrows to move between selections.

CURRENT STATUS items

1 % Energy Saving

2 % Capacity

3 Package kW

4 Package Discharge Temperature

5 Airend Discharge Temperature

6 Injected Coolant Temperature

7 Inlet Temperature

8 Sump Pressure

9 Separator Pressure Drop

10 Interstage Pressure

11 Coolant Filter

12 Inlet Filter

13 Total Hours

14 Motor Speed

15 Motor Current

16 Motor Voltage

17 Input Voltage

18 DC Bus Voltage

19 Remote Pressure (optional)

20 Time and Date

21 Program Name

22 Version of Drive Software

When the CURRENT STATUS screen is displayed, pressing the

ENERGY STATUS button will toggle the display to the ENERGY

STATUS screen. Likewise, when the ENERGY STATUS screen is

displayed, pressing the STATUS button will toggle the display to the

CURRENT STATUS screen.

The ENERGY STATUS screen displays the following items.

ENERGY STATUS Items

1 Average Package kW−hr

2 Average % Capacity

3 Average Capacity

4 Energy Cost

5 Energy Savings

6 Lifetime Energy Savings

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

9.5 MAIN MENU

The MAIN MENU screen can be accessed from the CURRENT STATUS

screen by pressing the MAIN MENU button, identiﬁed by the words

“MAIN MENU” in the bottom line of the screen directly above the

center button.

The MAIN MENU screen is the point from which various operator

functions can be accessed. Refer to the Operator Panel Flow

Diagram.

Each of the functions can be chosen by using the up and down

arrows to highlight it on the screen.

The controller will go to the highlighted function if the SELECT

button is pressed or will return to the CURRENT STATUS screen if the

STATUS button is pressed.

The language and units of measure are pre−set prior to the

compressor leaving the factory.

100 PSI

READY TO START

−MAIN MENU−

OPERATOR SETPOINTS

OPTIONS

SENSOR CALIBRATION

ALARM HISTORY

STATUS SELECT

OPERATOR

SETPOINTS

OPERATOR

SETPOINTS

ITEM

MAIN MENU

CURRENT

STATUS/ENERGY

STATUS

OPTIONS

OPTIONS ITEM

SENSOR

CALIBRATION

SENSOR

CALIBRATION

ITEM

ALARM

HISTORY

ALARM

HISTORY ITEM

CLOCK

FUNCTIONS

DATE

AND TIME

“Status”

“Main Menu”

“Select”

”sutatS“”sutatS“ “Status”

“Status”

“Main Menu” “Main

Menu”

“Main Menu”

“Main Menu” “Main Menu”

“Status”

“Main

Menu”

“Status”

“Main Menu”

”etarbilac ro lecnaC“”tes ro lecnaC“”tes ro lecnaC“

”tes ro lecnaC“”tsih mralA“

”tceleS“”tceleS“”tceleS“

“Select” “Select”

“Status”

“Main Menu”

“Cancel or set”

ENERGY

STATUS

AVG. PACKAGE kW HRS

AVG. % CAPACITY

AVG. CAPACITY

ENERGY COST

ENERGY SAVINGS

LIFETIME ENERGY SAVINGS

“Status”

“Main

Menu”

Energy

Status

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 71

9.0 OPERATING INSTRUCTIONS

9.6 OPERATOR SETPOINTS

Setpoints are user−adjustable variables in the controller logic that

can be set using the OPERATOR SETPOINTS screen shown opposite.

The name and value of each of the setpoints listed can be seen on

the screen by moving the list up and down using the arrow buttons.

Setpoints associated with options are described in the OPTIONS

sections.

100 PSI

READY TO START

OPERATOR SETPOINTS−

TARGET PRESSURE

105 psi

STATUS MAIN MENU SELECT

FACTORY DEFAULTS

OPERATOR SETPOINTS DEFAULT MIN. MAX. STEP UNIT

Target pressure 100 65 145 / 203 1 PSI

Automatic stop pressure 110 Target +1 Target +10 1 PSI

Immediate stop pressure 120 Auto Auto +10 1 PSI

Blowdown mode Oﬀ Oﬀ On − −

Condensate release 5 2 20 1 SEC.

Condensate interval 180 90 270 1 SEC.

% savings compared to Modulation − − − −

Energy Rate 0 0 9999.999 − −

Reset Avg. -- − − Reset Date −

Service menu 1 1 25535 1 −

A setpoint’s value can be changed by ﬁrst highlighting the item

and its value and pressing the SELECT button to highlight just the

value. When the value line is highlighted by itself, the value can

be adjusted using the up and down arrow buttons. The CANCEL

and SET buttons appear at this time. Press the SET button to enter

the new value or press the CANCEL button to return the value of

the setpoint prior to using the arrows. The displayed value will

ﬂash twice to indicated that it has been entered into the setpoint

and the pair of setpoint item and value display lines will again be

highlighted together.

Operator setpoints can be exited by pressing the STATUS or MAIN

MENU buttons. If no buttons are pressed within 30 seconds, the

display will return to the CURRENT STATUS screen.

Target pressure

The compressor will try to operate at this pressure setting. The

target pressure ranges and step sizes for each unit of measure are

listed in the table below.

Unit Min Max (1S / 2S) Step

PSI 65 145 / 203 1

BAR 4.4 10 / 14 0.1

kPa 440 1000 / 1400 10

KGCM2 4.5 10.2 / 14.2 0.1

Note: the max target pressure for N250/300H−2S is 145 PSI, 10 BAR ,

1000 kPa, 10.2 KGCM2.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

Automatic stop pressure

The compressor will stop once the system pressure rises to this

pressure and the compressor is operating at the minimum speed.

The range for this setpoint will be the target pressure+1 to target

pressure+10 psi if the target pressure is 145 psi or less, to target

pressure+7 psi if the target pressure is greater than 145, but less

than or equal to 175 psi, or target pressure +5 psi if the target

pressure is greater than 175 psi. If the remote sensor is ’on’, the

maximum automatic stop pressure will always be target pressure

+5 psi.

Immediate stop pressure

The compressor will stop if the system pressure rises to this

pressure. The range for this setpoint will be the automatic stop

pressure to automatic stop pressure+10 psi if the target pressure

is 145 psi or less, to automatic stop pressure+7 psi if the target

pressure is greater than 145, but less than or equal to 175 psi, or

automatic stop pressure +5 psi if the target pressure is greater than

175 psi. If the remote sensor is ’on’, the maximum immediate stop

pressure will always be automatic stop pressure +5 psi.

Blowdown Mode

2 stage compressors will always blowdown when signaled to stop.

If this mode is selected to ON the compressor will open the

blowdown valve anytime that it stops. This will vent pressure from

the airend and the separator tank. If this mode is selected to OFF

the blowdown valve will remain closed when the compressor stops

due to an automatic stop. Blowdown mode is set on at all times for

2 stage models. Blowdown mode will be shown as ”Not Installed” at

the controller display.

Condensate Release

This is the number of seconds that the condensate solenoid will be

open (energized) when blowing out the condensation.

Condensate Interval

This is the time interval between condensation blowdowns

% savings compared to

This setpoint is to determine what Nirvana’s percent of savings is

compared to. The modes of operation for comparing Nirvana to are

modulation, online/oﬄine, and geometry. The percent savings value

is displayed by the status message, % energy savings

Energy Rate

The energy cost and the energy savings items on the ENERGY

STATUS screen will use this value for their calculations. It is intended

to be a monetary value representing the user’s power cost per

kilowatt hour.

Reset Averaging

When this setpoint is selected and the SET button is pressed, the

items on the ENERGY STATUS screen will be reset, and the date

the reset occurred will be displayed in this setpoint. This selects

the beginning of the time period over which the ENERGY STATUS

information will be calculated. Note that the “Lifetime Energy

Savings” item will not be reset.

Service Menu

For use by IR personnel only.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 73

9.0 OPERATING INSTRUCTIONS

9.7 OPTIONS

Options are turned on or oﬀ and their associated values are set

using the OPTION screen shown opposite.

Some options are purchased, they require additional machine

hardware and must ﬁrst be enabled by service personnel. The name

and value of each of the following options can be seen by moving

the list up and down using the arrow buttons

An Option item’s value can be changed the same way that

OPERATOR SETPOINTS values are changed.

100 PSI

READY TO START

−OPTIONS−

REMOTE START/STOP ON

STATUS MAIN MENU SELECT

OPTIONS Items SELECTION MIN. MAX. Step Unit Installed

Option

Required

Remote Pressure Sensor ON/OFF No

Sequencer ON/OFF No

Remote Start/Stop ON/OFF Yes

Power Out Restart ON/OFF Yes

Power Out Restart Time 10 600 1 SEC Yes

Scheduled Start Day day day 1 day Yes

Scheduled Start 00:00 23:59 1 time Yes

Scheduled Stop Day day day 1 day Yes

Scheduled Stop 00:00 23:59 1 time Yes

Modbus Protocol ON/OFF/ICU No

Modbus Address 1 247 1 No

Remote pressure sensor

If this setting is set to ON, the compressor will use a remote

mounted pressure sensor for controlling system pressure by

comparing it to the Target Pressure setting and the Auto Stop

Pressure setting. The pressure measured by this sensor is shown in

the CURRENT STATUS display as the Remote Pressure reading. The

local sensor at the package discharge is still used for Immediate

Stop, for certain Alarm conditions and for display on the left side of

the screen.

Sequencer

If this setting is set to ON, the compressor will be able to start and

stop by commands from a host device. When the Intellisys receives

a load command from the host device, the compressor will start.

When the Intellisys receives an unload command the compressor

will respond as though executing an immediate stop.

Remote start/stop

If the remote start/stop option is installed and this setting is set

to ON, the compressor can be started and stopped from a remote

device.

Power out restart

If this setting is set to ON, the compressor will automatically restart

when power is returned to the compressor if it was operating when

power was removed.

Note:

A kit including instruction manual is required to install this option.

Power out restart time

If the power out restart setting is set to ON, this is the number of

seconds from the time power is restored until the compressor starts.

The power out restart horn will sound during this time.

Scheduled start day

This option is the selection for the day that a scheduled start will

take place. The selections are Sunday, Monday, Tuesday, Wednesday,

Thursday, Friday, Saturday, Daily (Su- Sa), Weekdays (M - F), or

Weekends. This option setpoint will work with the scheduled start

setpoint.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

Scheduled start

This option will cause the unit to start on the scheduled start day , at

the time stored in this setpoint. To disable this option, set the value

of scheduled start equal to the value of scheduled stop.

Scheduled stop day

This option is the selection for the day that a scheduled stop will

take place. The selections are Sunday, Monday, Tuesday, Wednesday,

Thursday, Friday, Saturday, Daily (Su - Sa), Weekdays (M - F), or

Weekends. This option setpoint will work with the scheduled stop

setpoint.

Scheduled stop

This option will cause the unit to stop on the scheduled stop day, at

the time stored in this setpoint. To disable this option, set the value

of scheduled stop equal to the value of scheduled start.

Modbus protocol and address

See the Modbus manual.

9.8 SENSOR CALIBRATION

Pressure sensor calibration is done through the SENSOR

CALIBRATION screen. Sensor calibration can only take place when

the machine is stopped. Calibration needs to be done only after

a sensor has been replaced or the Intellisys controller has been

replaced.

100 PSI

READY TO START

−SENSOR CALIBRATION−

SENSOR 4APT

CALIBRATE

SENSOR 3APT

CALIBRATE

STATUS MAIN MENU SELECT

Each of the sensors listed below can be chosen by using the up and

down arrow buttons to highlight it on the screen.

SENSOR CALIBRATION Items

Sensor 4APT (Package Discharge)

Sensor 3APT (Wet Side Sump)

Sensor 6APT (Dry Side Sump)

Sensor 2APT (Interstage)

Sensor 9APT (Remote Sensor)

Select the highlighted sensor by pressing the SELECT button. Press

the CALIBRATE button to start the automatic calibration procedure,

or press the CANCEL button to not calibrate it and return to the

sensor list.

The calibration screen can be exited by pressing either the STATUS

or MAIN MENU buttons. If no buttons are pressed within 30 seconds,

the display will return to the CURRENT STATUS screen.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 75

9.0 OPERATING INSTRUCTIONS

9.9 ALARM HISTORY

Alarm History displays each of the Alarm messages for the last

15 Alarms experienced by the machine. It also gives access to

displaying the machine operating conditions that existed at the

time of each Alarm. The ﬁrst one shown, “Alarm History 1”, was

the most recent Alarm to occur. Note that multiple, consecutive

EMERGENCY STOP Alarms are not recorded as separate Alarms, only

the ﬁrst one will be shown.

100 PSI

READY TO START

−ALARM HISTORY−

ALARM HISTORY 1

BLOWER MOTOR

OVERLOAD

ALARM HISTORY 2

HIGH AIREND DISCH

TEMP

STATUS MAIN MENU SELECT

Each of the last 15 Alarm messages can be seen by moving the

Alarm History list up and down using the arrow buttons. Pressing

the SELECT button when one of the Alarms is highlighted will

display the list of machine values that existed at the time that

particular Alarm occurred.

The name and value of each of the items can be seen by moving the

list up and down using the arrow buttons. Pressing the ALARM HIST.

button will return the display to the ALARM HISTORY screen.

Alarm histories can be exited by pressing either the STATUS or MAIN

MENU buttons. If no buttons are pressed within 30 seconds, the

display will return to the CURRENT STATUS screen.

9.10 CLOCK FUNCTIONS

100 PSI

READY TO START

−CLOCK FUNCTIONS−

Time

01:15

Date

Jan 01, 00

STATUS MAIN MENU SELECT

The date and time for the real time clock is set through the CLOCK

FUNCTIONS screen. Use the up and down arrows to highlight either

TIME or DATE. Select the highlighted setting by pressing SELECT.

If TIME is selected, ﬁrst the hours will be highlighted. Adjust the

hours (00−23 hour clock) by using the up and down arrows. Once

the correct time is in the display, press SET to highlight the minutes.

Adjust the minutes (00−59) and then press SET to complete setting

the time.

If DATE is selected, ﬁrst the month will be highlighted. Adjust the

month by using the up and down arrows and then press SET to

highlight the date. Once the correct date is displayed, press SET to

highlight the year. Once the correct year is displayed, press SET to

complete setting the date.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

9.11 ENERGY STATUS MESSAGES

100 PSI

READY TO START

−ENERGY STATUS−

AVERAGE PACKAGE kW

HRS

AVERAGE % CAPACITY−

−AVERAGE CAPACITY

STATUS MAIN MENU SELECT

The Energy Status display can be selected by pressing the ENERGY

STATUS button. The following items and their present values will

be displayed on the right side of the screen by pressing the up and

down arrows.

AVERAGE PACKAGE kW HOURS − This displays the average

package kW per hour for the time period that was started by

selecting the reset averaging setpoint. This value includes the

blower power usage.

AVERAGE % CAPACITY − Displays the compressor’s average

percent capacity for the time period that was started by selecting

the reset averaging setpoint. The value is determined by taking the

average package kW per hour, removing the blower power usage

and then dividing that number by the motor kW per hour for that

size of compressor at 100% capacity.

AVERAGE CAPACITY − Displays the compressor’s average capacity

in cfm or m3 for the time period that was started by selecting the

reset averaging setpoint.

ENERGY COST − Displays the energy cost of the compressor for

the time period that was started by selecting the reset averaging

setpoint. This is calculated by multiplying the kW hours of the motor

and the blower by the energy rate.

ENERGY SAVINGS − Displays the energy savings of the compressor

for the time period that was started by selecting the reset averaging

setpoint as compared to a conventional compressor. This value is

determined by calculating how much a conventional compressor

motor would cost to operate at the same average capacity and then

subtracting the motor energy cost of the Nirvana compressor from

it. It is assumed that the blower cost is the same in both packages.

LIFETIME ENERGY SAVINGS − Displays the lifetime energy savings

of the compressor at the existing energy rate and at the average

percent capacity as compared to a conventional compressor.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 77

9.0 OPERATING INSTRUCTIONS

9.12 WARNINGS

When a WARNING occurs, a large question mark will ﬂash on the

display screen.

If multiple WARNINGS exist, the small up/down arrows will appear

in the upper right corner of the display screen. The multiple

WARNINGS can be seen by pressing the up and down arrow

buttons. Pressing the STATUS button will display the CURRENT

STATUS screen with the WARNING button indicating that a

WARNING still exists.

A WARNING will not cause the unit to shut down. The unit will

continue to run in its normal operation and the WARNING will

remain displayed until reset.

A Warning needs to be reset by the operator by pressing the RESET

button twice.

The possible Warning messages are as follows;

HIGH AIREND DISCHARGE TEMP − This will occur if the Airend

Discharge exceeds 97% of the alarm limit, 109° C (228° F) and is not

adjustable.

CHANGE COOLANT FILTER − This warning will occur if the high

side pressure is 1.4 bar (20 psig) greater than the low side pressure.

CHANGE INLET FILTER − This will occur if the Inlet Vacuum is

greater than 0.05 bar (0.7 psig).

CHANGE SEPR ELEMENT − This will occur if the pressure

diﬀerential across the separator is 1.0 bar (12 psig).

SENSOR FAILURE − This will occur if a sensor is recognized as

missing or broken.

HIGH DISCHARGE PRESS − Will occur if the unit is under the

control of an external device, such as an ISC, and the discharge

pressure is greater than the immediate stop pressure.

AUXILIARY WARNING 1 or 2 − Will occur if the auxiliary warning

input closes.

REMOTE PRESSURE SENSOR FAILURE (option) − This will occur

if the remote pressure sensor fails. If this happens, the lntellisys

will start using the package discharge pressure sensor to measure

system pressure.

CONDENSATE DRAIN ERROR − On 2 stage units, this will occur if

the condensate drain error contacts close while the unit is running.

9.13 SERVICE WARNINGS

SERVICE − Service warnings occur when the unit has operated a

certain number of hours, based on the total hours, or has operated

for a certain number of months, based on the real time clock.

Service warnings can have multiple levels, depending on the service

level selection.

This will be set prior to the compressor being shipped from the

factory. When a service warning occurs, contact your local IR service

representative.

9.14 INITIAL CHECK ALARMS:

The following alarms will only occur when the machine is not

running. These alarms are related to high temperature, power loss,

and sensor calibration. They will have the same display mode as

other alarms.

HIGH AIREND DISCH TEMP− Will occur if airend discharge

temperature is greater than 95% of 109° C (228° F).

CHECK SETPOINTS − Will occur if the controller has determined

that some of the data stored in memory contains unacceptable

values.

INVALID CALIBRATION − Will occur if the sensor zero value is

−10% to +1% of its scale. See Sensor Calibration.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

9.0 OPERATING INSTRUCTIONS

9.15 ALARMS

When an Alarm occurs, a large exclamation mark in a triangle will

ﬂash on the display screen. The display message will indicate what

caused the Alarm.

The compressor will stop and cannot be re−started again until the

alarm condition no longer exists and the alarm message reset.

Pressing the STATUS button will display the STATUS screen. The

presence of the ALARM button indicates that an Alarm condition

still exists. Alarm Status is the list of machine operating conditions

that existed at the time of the Alarm.

The name and value of each of the items listed can be seen by

moving the list up and down using the arrow buttons. Pressing the

ALARM button will return the display to the Alarm screen and the

RESET button.

The Alarm needs to be reset by the operator by pressing the RESET

button twice. Any exceptions to this are explained in the alarm

descriptions.

100 PSI

STOPPED BY

ALARM

−ALARM STATUS−

PACKAGE DISCH

PRESSURE

100 psi

PACKAGE DISCHARGE

TEMP

103° F

ALARM MAIN MENU

The possible Alarm messages are as follows;

EMERGENCY STOP− This will occur if the Emergency Stop button is

engaged. The button must be disengaged before the alarm can be

cleared.

BLOWER FAULT− This will occur if a blower fault is sensed.

HIGH AIREND DISCH TEMP− This will occur if the airend discharge

temperature is greater than 109° C (228° F).

REMOTE START FAILURE− This will occur if the Remote Start

button is pressed after the machine is running or if the Remote Start

button remains closed.

REMOTE STOP FAILURE− This will occur if the Remote Stop button

remains open and either Start button is pressed.

SENSOR FAILURE − This will occur if a sensor is recognized as

missing or broken.

VSD FAULT − The VSD fault is read from the drive. The Intellisys will

read the status menu of the variable speed drive. If a fault condition

is returned in the status information, the Intellisys will issue a VSD

FAULT alarm and display the number of the fault condition.

CONTROL POWER LOSS − This will occur if the control circuit is

broken by a bad connection or safety switch (e.g. HAT Switch/ Phase

Monitor). Any fall of voltage below 100VAC for more than 2 seconds

will cause this alarm trip.

STOP FAILURE − This will occur if the compressor should be

stopped but the motor is still running above minimum speed 4

seconds after the stop signal is given.

HIGH START PRESSURE − If the sump pressure is above 100 psi

(6.9 bar) when the compressor starts, the Intellisys will open the

blowdown valve during the ﬁrst few seconds of starting (3 to 7

seconds). If the sump pressure does not fall to 100 psi (6.9 bar)

during that time period, this shutdown will occur.

CHECK MOTOR ROTATION − This will occur if the Intellisys reads a

negative speed from the VSD when starting .

VSD COMMUNICATION FAILURE − This will occur if the Intellisys

does not receive a response from the VSD when requesting

information. This alarm will take about 8 seconds to occur.

VSD INITIALIZATION FAULT − Will occur if the Intellisys is unable to

establish communications with the VSD after a power up.

LOW SUMP PRESSURE − Will occur if the compressor is operating

at or above the minimum speed and the sump pressure drops

below 15psi (1.03 bar) for 15 seconds.

REPLACE COOLANT FILTER − This will occur if the coolant ﬁlter is

blocked and requires changing.

INCORRECT VSD TYPE − Will occur at power up if the VSD type

does not match the size of the compressor

125HP (90kW) machines and above also have the following alarm

messages;

CONTROL POWER LOSS − This will occur if the compressor should

be running and the AC input voltage, as read from the VSD, falls

below 100 VAC. There is a delay of 2 seconds on this alarm in case

the power quickly returns. An open HAT switch or phase monitor are

two things that can cause this alarm.

STOP FAILURE − This will occur if the compressor should be

stopped, but the motor speed has not dropped below the minimum

motor speed setpoint. The Intellisys will wait 4 seconds for the

compressor to stop before issuing this alarm.

HIGH INTERSTAGE PRESSURE − If the interstage pressure is over

100psi while the unit is running and the unit is a 2−stage.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 79

10.0 MAINTENANCE

10.1 MAINTENANCE PROMPTS

The service warning and ﬂashing LED will appear at

intervals, dependant on the service level selected. Refer

to operating instructions.

The customer can only reset the warning for 24 hours by

pressing the “set” button.

IR service engineers will master reset the warning after

completing the service work.

The service warning will return each subsequent 2000

hours.

The machine will be master reset after service work

conducted prior to the 2000 hour interval to prevent false

indication.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

10.2 MAINTENANCE CHART

The MAINTENANCE CHART indicates the various components and the intervals when maintenance has to take place.

Where a service interval is stated in both hours and months, it is the sooner of the two intervals that must be adhered

to. Coolant capacities etc can be found in the GENERAL INFORMATION section of this manual. Note that any Local or

National codes that require speciﬁc maintenance that exceeds the requirements of this section must be adhered to.

™

Maintenance Schedule

Hours:

Daily

150

(1st time

only)

500

1000

1500

2500

3000

2000

6000

10000

14000

18000

4000

12000

20000

8000

16000

Coolant ﬁlter Change Change Change Change

Air ﬁlter ** Check

pressure Change Change

Separator element *** Check

pressure Change Change

ULTRA COOLANT* Check Sample Sample Change

Power Drive Module ﬁlter * Check Change Change Change

Scavenge screen ** Check /

clean Check /

clean

Hoses *** Check /

clean Check /

clean

High Air Temperature sensor Check Check Check Check

Pressure relief valve Check Check Check

Cooler Core(s) Check /

clean Check /

clean

Moisture separator Check /

clean Check /

clean

Motor cowl Check /

clean Check /

clean

Vibration Analysis Analysis Analysis Analysis

Coolant Analysis Analysis Analysis Analysis

Food Grade Coolant * Analysis at every 500

Change at every 1000

Blower Motor / Fan Motor Regrease Regrease

If the compressor is run less than 4,000 hours per year,

HPM 250L motor Regrease at 2000hrs and 4000hrs N250/300H-2S only

* Maintain every 6 months

** Maintain every year

*** Maintain every 2 years

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 81

10.0 MAINTENANCE

Note:

On some sea watercooled models the oil cooler and aftercooler are ﬁtted with sacriﬁcial zinc anodes (pencils) that are

located in the end bonnets of the coolers. These sacriﬁcial zinc anodes should be checked after the ﬁrst 50 hours of

operation to determine if corrosive conditions exist. If satisfactory this interval may be extended to 500 hours.

NOTE:

If sacriﬁcial zinc anode is 50% corroded it should be replaced.

Coastal/harbor waters can contain corrosive chemicals from pollution and may reduce anode/cooler life.

Eﬀects of corrosion or erosion are speciﬁcally excluded from warranty considerations.

10.3 MAINTENANCE PROCEDURES

CAUTION

Before beginning any work on the compressor, read and understand the safety instructions earlier on in this

manual. Open, lock and tag the main electrical disconnect and close the isolation valve on the compressor

discharge. Do not under any circumstances open any drain valve or remove components from the compres-

sor until this has been carried out. Ensure that all pressure has been vented from the compressor. Verify this

by slowly unscrewing the coolant ﬁll cap one turn. Unscrewing the ﬁll cap opens a vent hole, drilled in the

cap, allowing pressure to release to atmosphere. Do not remove the ﬁll cap until all pressure has vented from

the unit. Note that pipework downstream of the separator tank may still contain pressure that must also be

vented to atmosphere before beginning any work.

CAUTION

When using any form of liquid for cleaning, ensure that all electrical components are protected or

covered to prevent ingress of liquid.

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.

DANGER

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 electric charge which gradually falls to zero over

time. After switching oﬀ the machine at its local isolator WAIT AT LEAST 15 MINUTES for the capacitors to fully

discharge before opening the power drive module doors.

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 pres-

sure which must also be vented.

WARNING

Use suitable equipment for lifting heavy items and ensure loose components are adequately supported to

eliminate risk of dropping.

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.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

Compressed air can be dangerous if incorrectly handled.

Before doing any work on the unit, ensure that all

pressure is vented from the system and that the machine

cannot be started accidentally.

Ensure that maintenance personnel are adequately

trained, competent and have read the Maintenance

Manuals.

Prior to attempting any maintenance work, ensure

that:−

all air pressure is fully discharged and isolated from the

system. If the automatic blowdown valve is used for

this purpose, then allow enough time for it to complete

the operation.

the machine cannot be started accidentally or

otherwise, by posting warning signs and/or ﬁtting

appropriate anti−start devices.

all residual electrical power sources (mains and battery)

are isolated.

Prior to opening or removing panels or covers to work

inside a machine, ensure that:−

anyone entering the machine is aware of the reduced

level of protection and the additional hazards,

including hot surfaces and intermittently moving parts.

the machine cannot be started accidentally or

otherwise, by posting warning signs and/or ﬁtting

appropriate anti−start devices.

•

Prior to attempting any maintenance work on a

running machine, ensure that:−

the work carried out is limited to only those tasks

which require the machine to run.

the work carried out with safety protection devices

disabled or removed is limited to only those tasks

which require the machine to be running with safety

protection devices disabled or removed.

all hazards present are known (e.g. pressurized

components, electrically live components, removed

panels, covers and guards, extreme temperatures,

inﬂow and outﬂow of air, intermittently moving parts,

safety valve discharge etc.).

appropriate personal protective equipment is worn.

loose clothing, jewelry, long hair etc. is made safe.

warning signs indicating that Maintenance Work is in

Progress are posted in a position that can be clearly

seen.

Upon completion of maintenance tasks and prior to

returning the machine into service, ensure that:−

the machine is suitably tested.

all guards and safety protection devices are reﬁtted.

all panels are replaced, canopy and doors closed.

hazardous materials are eﬀectively contained and

disposed of.

•

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 83

10.0 MAINTENANCE

10.4 ROUTINE MAINTENANCE

This section refers to the various components which

require periodic maintenance and replacement.

For all other maintenance, contact your local Ingersoll

Rand oﬃce, Distributor or Air Center.

Refer to safety information and maintenance procedures

prior to carrying out any of the maintenance in the

following sections.

Prior to starting

Coolant level checking procedure

The coolant level should be checked daily. A coolant level

sight glass is located on the side of the separator tank

and while the machine is running on load, coolant should

always be visible in the sight glass. The normal position is

half way.

Stop the machine and ensure coolant is still visible in the

sight glass.

Adding coolant

Run the compressor for a minimum of 40 seconds, the

coolant level should be visible in the sight glass. If not,

stop the compressor, depressurize by isolating the

compressor from the system, pressing the emergency

stop to vent the separator tank & airend & then slowly

unscrew the coolant ﬁll plug to verify all pressure has

been released and add coolant. Replace the coolant ﬁll

plug, restart the compressor and recheck the coolant

level. Repeat until the coolant level is visible in the sight

glass with the compressor both running and stopped.

Do not add coolant through the intake of the compressor,

as this can result in overﬁlling, saturation of the separator

ﬁlter element, and coolant carry−over downstream.

DANGER

Under no circumstance should the compressor be

operated with the coolant ﬁll plug removed.

Coolant change procedure

WARNING

The coolant ﬁlter and coolant may be hot!

The compressor features a ’no drip’ coolant drain feature

which requires no special tools and minimizes the risk of

coolant spillage.

It is better to drain the coolant immediately after the

compressor has been operating as the liquid will drain

faster and any contaminant will still be in suspension

Remove the cap from the drain valve located at the

front of the separator vessel.

Place a suitable container close to the drain valve.

Screw the coolant drain hose onto the drain valve.

As the threads engage, the valve will automatically

open and the coolant will drain.

Remove the drain hose. The valve will automatically

close and seal.

Replace the cap on the drain valve.

For a complete drain, remove the plug near the

vessel inlet ﬂange and replace when complete.

Replace the coolant ﬁlter element.

Reﬁll with correct quantity of coolant.

See 8.0 General Information.

•

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

Drain sequence for N250/300H−2S

Remove plug from drain valve located on the bottom

of the separator tank.

Install supplied drain hose and ﬁtting assembly in

end of drain valve and place end of hose in a suitable

pan.

Open drain valve to start drainage.

After draining is complete, close valve, remove hose

an ﬁtting assembly from valve, and store in a suitable

location for future use.

Replace plug in end of drain valve.

Do not store drain hose in starter box after it has

been used to drain the separator tank.

Coolant ﬁll quantity

250−300 hp − 2 stage

40.0 gallons (152 liters)

COOLANT DRAIN

CAUTION

Do not mix coolant types. Use only coolant speciﬁed

by IR

Start the compressor and check for leaks.

Check the coolant level, reﬁlling if necessary.

Dispose of waste coolant in accordance with local

and governmental regulations.

NOTICE

Shorter coolant drain intervals may be necessary if

the compressor is operated in adverse conditions.

Food Grade Coolant option

SSR Food Grade Coolant is a polyalphaoleﬁn base

coolant. Change after 1000 hours or every 6 months

whichever comes ﬁrst. Do not operate unit past this

1000 hour change interval, as coolant degradation

will occur.

•

Coolant ﬁlter change procedure

Loosen ﬁlter element with the correct tool.

Remove the element from the housing.

Place the old element in a sealed bag and dispose of

in a safe way.

Clean the mating face of the housing.

Remove the new Ingersoll Rand replacement

element from its protective package.

Apply a small amount of coolant to the element seal.

Screw the new element down until the seal makes

contact with the housing, then hand tighten a

further half turn.

Start the compressor and check for leaks and check

the coolant level.

Separator element checking procedure

With the compressor running on load, check the

separator diﬀerential pressure via the Intellisys controller.

It will be necessary to change the element if the

diﬀerential pressure equals zero or exceeds 1 bar

(12 psig).

Separator element change procedure

Remove all the capscrews securing the cover to the

tank except the screw opposite the pivot bolt which

should be left engaged by 2−3 threads with at least

6.5mm (0.25”) clearance from the screw head to the

lid. Rotate the jacking bolt clockwise until the cover

lifts oﬀ the tank at least 2mm (0.08”) all the way

around the tank. The cover can now be rotated to

allow access to inside the tank.

Carefully lift out the element spacer and retain for

reassembly. Do not damage the ﬂat surfaces of the

spacer as this may cause higher oil carryover or leaks.

A hoist is available for 175HP (90kW) machines and

above if required.

Carefully withdraw the used element, place it in a

sealed bag and dispose of it safely.

Remove the O−rings from the top of the tank, the

separator element sealing face and the scavenge

tube sealing face.

Clean the surfaces on both the tank and the cover.

Install new O−rings

Install replacement element remembering to ﬁt the

small O−ring on the scavenge tube and positioning

the tube into the matching hole in the Separator

Tank

Re−ﬁt the separator element spacer with the notch

over the scavenge tube.

Rotate the tank cover back into position taking care

not to damage the O−ring, and locate the cover

using 2 capscrews but do not tighten down.

•

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 85

10.0 MAINTENANCE

Separator element change procedure for N250/

300H−2S

Disconnect the scavenge tube at the airend.

Loosen the ﬁtting that holds the scavenge tube into

the tank and withdraw the tube assembly

Disconnect the piping from the tank cover. Tag the

lines if required.

Use a suitable wrench and remove the bolts that

hold the tank cover in position. Remove cover by

lifting up and away.

Carefully lift the separator element up and out of the

tank. Discard the faulty element.

Clean the gasket surface on both the tank and its

cover. Exercise care to prevent pieces of the old

gasket from falling down into the tank.

Check the tank to be absolutely certain that no

foreign objects such as rags or tools have been

allowed to fall into the tank. Install replacement

element down into the tank after checking the new

element gaskets for possible damage. Center the

element up within the tank.

Place the tank cover in its correct position and

install bolts. Tighten the bolts in a cross−pattern to

prevent over−tightening one side of the cover. An

improperly tightened cover will likely result in a leak.

Tank cover bolt torque values

250−300 HP

3/4−10 UNC

210ft−lb. (285 n−M)

Inspect tank scavenge screen and oriﬁce. Clean if

necessary following instructions in Section 4.7.

Install scavenge tube down into the tank until the

tube just touches the separator element and then

raise it 1/8inch (3.2 mm). Tighten ﬁttings.

Install the regulation lines in their original position.

Start unit, check for leaks, place in service.

RECOMMENDED BOLT TIGHTENING

CROSS PATTERN

250 − 300 HP

Scavenge screen clean/check procedure

The screen/oriﬁce assemblies are similar in appearance to

a straight tubing connector and will be located between

two pieces of 1/4 inch O.D. scavenge line tubing.

•

The main body is made from 1/2 inch hexagon

shaped steel and the diameter of the oriﬁce and a

direction−of−ﬂow arrow is stamped in ﬂat areas of the

hexagon.

A removeable screen and oriﬁce is located in the exit end

of the assembly. (see ﬁgure) and will require clearing as

outlined in the Maintenance Schedule Section 10.2.

To remove the screen/oriﬁce, disconnect the scavenge

line tubing from each end. Hold the center section ﬁrmly

and use a pair of pliers to gently grasp the exit end of

the assembly that seals against the scavenge line tubing.

Pull the end out of the center section while using care to

prevent damage to the screen or sealing surfaces.

Clean and inspect all parts prior to reinstallation.

When the assembly is installed, conﬁrm the direction of

ﬂow to be correct. Observe the small arrow stamped in

the center section and ensure the direction ﬂow to be

from the separator tank to the airend.

ORIFICE

SCREW HOUSING SCREEN

O−RING

SEPARATOR TANK SCAVENGE SCREEN/ORIFICE

WARNING

Unscrew the jacking bolt suﬃciently to ensure that

the cover can be fully tightened down without im-

parting any stress onto the jacking points. Tighten

down the cover setscrews.

Start the compressor and check for leaks and

coolant level.

CAUTION

Do not use any form of sealant on either the separa-

tor tank or the separator tank cover faces.

Separator tank / Pressure system

At 2000 hour intervals, inspect the external surfaces of

the airend and separator tank, including all ﬁttings, for

visible signs of impact damage, excessive corrosion and

abrasions. When changing the separator element inspect

the internal components and surfaces. Any suspect parts

should be replaced before the compressor is put back

into service.

The separator tank should also be tested and inspected

in accordance with any national or local codes that may

exist.

•

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

Blower motor Re−Grease

(N75−160 Aircooled units)

6 Months or 4000 Hrs

Apply high melting point grease into the blower motor

drive end bearing using a grease gun at the nipple

provided.

Stop when excess grease is seen at the relief port.

Main motor Re−Grease instructions

HPM 250L motor Re-Grease (N250/300N-2S units only)

Every 2000 hours

Apply Exxon Polyrex - EM or Mobilith - CHC 220 grease

into main motor drive end and non-drive end bearings

using a grease gun at the nipple provided.

Drive end and non-drive end grease quantity 75 grams.

Stop when excess grease is seen at the relief port.

Coolant hoses

The ﬂexible hoses that carry coolant through the

cooling system may become brittle with age and

will require replacement. Have your local Ingersoll

Rand Distributor or Air Center inspect them every 3

months and replace them as needed or every 2 years.

Depending on the location of the hose, it may

contain compressor coolant. It is recommended to

drain the coolant into a clean container. Cover the

container to prevent contamination. If the coolant

is contaminated, a new charge of coolant must be

used.

Remove the hose.

Install the new hose and reﬁll the unit with coolant.

Start the compressor, check for leaks and check

coolant level. Reﬁll as necessary

Pressure relief valve check

The pressure relief valve must be frequently tested

and regularly maintained. Remove from the machine

and check for the correct operating pressure. Adjust as

necessary. If operating conditions are particularly severe,

the frequency of testing and maintenance must be

increased accordingly. A pressure relief valve check must

also be performed at the end of any non−service period.

The user must establish the frequency of such tests as it is

inﬂuenced by such factors as the severity of the operating

environment.

CAUTION

High pressure air will discharge through the dis-

charge ports of the valve during pressure relief

valve check. Wear ample clothing, gloves, safety

glasses and ear protection during valve testing.

•

Run the compressor for about 10 minutes by venting

air from the system to let the unit warm up. With the

unit running, test at or near the maximum operating

pressure by opening the valve for the minimum period

required to ﬂush the valve seat free of debris. This can

be accomplished by holding the test lever fully open or

unscrewing the spring pressure retaining cap, depending

on the type of valve installed. If there is no evidence of

discharge or the valve does not fully close, discontinue

use of equipment and contact a licensed contractor or

qualiﬁed service personnel.

The pressure relief valve should also be tested and

re−calibrated in accordance with any national or local

codes that may exist. If no code exists, IR recommend that

the pressure relief valve is recalibrated at intervals of one

year.

Air ﬁlter change procedure

Unclip the retaining cap and withdraw the old

element.

Fit the new element and reﬁt the retaining cap.

Air ﬁlter change procedure N250/300H−2S

Loosen wing nut on top of inlet ﬁlter housing. Lift

cover up and away to expose elements.

Carefully remove the old element to prevent dirt

from entering the the compressor inlet.

Thoroughly clean the element housing and wipe all

surfaces

Install new element and inspect to ensure that they

have seated properly.

Install top of inlet ﬁlter housing.

Inspect the rubber seal on the retainer wing nut and

replace seal if required.

Tighten wing nuts.

Aircooled Cooler Cleaning

Ensure that the compressor is isolated from the

compressed air system and is vented of all pressure. When

undertaking any work on the compressor always use

certiﬁed lifting equipment and employ sound working

principles.

Ensure that the main power disconnect switch is locked

oﬀ and tagged.

Visually check the outside of the cooler cores to be

certain that a complete cleaning of the cooler is required.

Frequently, dirt, dust or other foreign material may

only need to be removed with a vacuum to remedy the

problem.

When the cooler is covered with a combination of oil,

grease or other heavy substances that may aﬀect the

unit’s cooling, then it is recommended that the cooler

cores be thoroughly cleaned on the outside.

If it is determined that the compressor operating

temperature is higher than normal due to the external

passages between the ﬁns of the cooler cores being

restricted with deposits of foreign material, then the

cooler should be removed for cleaning.

•

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 87

10.0 MAINTENANCE

N50/100H N37/75K

Following are instructions for tilting the cooler away from

the enclosure and cleaning of the cooler.

Remove 6 screws from lower rear ﬁxed panel and

remove panel.

Remove 10 screws from the rear intake panel and

remove panel.

Loosen clamp and disconnect the air inlet hose from

the intake plenum.

Remove intake plenum. Note, plenum is

unsupported, before removing the 8 screws from

the intake plenum, block underside of plenum

prior to removing screws to prevent plenum from

falling.

Remove hose from elbow in aftercooler inlet. Plug

elbow in inlet hole of aftercooler.

Unscrew the ﬁtting connecting the aftercooler to the

discharge tube.

Loosen mounting bolts on moisture separator to

allow moisture separator to slide down in mounting

bracket. Once lowered, remove the discharge tube

connecting the moisture separator to the aftercooler

outlet.

Plug aftercooler discharge hole.

To tilt cooler forward, remove 6 screws holding the

cooler in place. While removing the last screw,

hold the top of the cooler in place to prevent the

cooler from tilting. Once the screw is removed,

allow the cooler to tilt forward until the pivot

brackets touch the pivot stops. The cooler will stop

tilting at 45 degrees.

Cover the main drive motor with plastic sheeting to

prevent cleaning solution from entering the motor.

Before cleaning coolers, check to ensure aftercooler

intake and discharge holes are plugged to prevent

contamination of compressor system. Clean coolers

with a mild cleaning solution.

WARNING

Strong cleaners can harm aluminium cooler parts.

Follow cleaner manufacturers instructions for use.

Wear appropriate safety equipment.

After cleaning is complete, reassemble in reverse

order.

N125/200H (N90/160K) SINGLE STAGE and N100/200H

(N75K−160K) TWO STAGE

The coolers in these machines can either be cleaned by

removing the complete cooler for oﬀ site cleaning or

’back ﬂushing’ in place using a high pressure hose and

gaining access through the holes in the intermediate

plenum.

•

Instructions for cleaning the coolers while installed in

the compressor.

While cleaning coolers, great care must be taken to

protect the rest of the machine from moisture and

contamination by covering sensitive parts with plastic

sheeting.

Remove 4 screws from enclosure panel below

moisture separator and remove panel.

Remove 4 screws from enclosure panel above

moisture separator and remove panel.

Remove the 16 screws securing the access panels on

the cooling plenum and remove covers.

Cover main drive motor, PDM Heat sink blower

motor, drain valve, and cooling motor variable speed

drive with plastic sheeting to prevent damage from

entrance of cleaning solution.

Cover inlet of blower wheel with plastic sheeting to

prevent entrance of cleaning ﬂuid.

Cover the inlet grill of the intake panel with plastic

sheeting to prevent cleaning solution from exiting

the compressor.

Attach drain hose to the coupling on the bottom of

the plenum to allow the cleaning solution to drain

outside the compressor. Alternately, place large

bucket underneath plenum to collect cleaning ﬂuid.

Use an extended length nozzle and a mild cleaning

solution to clean the coolers.

WARNING

Strong cleaners can harm aluminium cooler parts.

Follow cleaner manufacturers instructions for use.

Wear appropriate safety equipment.

Cleaning ﬂuid will collect on both sides of the cooler

core. If required, periodically drain ﬂuid from intake

plenum and bucket to prevent them from over

ﬂowing.

After cleaning is complete, dry oﬀ plenum, intake,

and cooler core. Reassemble parts in reverse order.

If the cooler cores are unable to be cleaned while in-

stalled in the compressor, remove cooler as follows:

Remove 5 screws from panel below the intake panel

and remove panel. Be careful not to damage the

electrical leads entering the panel.

Remove 8 screws from the intake panel and remove

panel.

Remove 8 screws from the intake plenum supports

and remove the supports.

Remove the 10 screws securing the intake plenum

and remove the plenum

Disconnect both oil lines and both air lines from the

cooler. Plug all 4 inlets to prevent cleaning ﬂuid from

entering the cooler cores.

•

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

Remove 6 screws from top panel above cooler and

remove panel.

Using lifting device from above, attach lifting straps

to lifting supports on each side of cooler.

With the weight of the cooler supported by the

lifting device, remove the 10 screws securing the

cooler and remove the cooler.

Clean coolers with a mild cleaning solution.

WARNING

Strong cleaners can harm aluminium cooler parts.

Follow cleaner manufacturers instructions for use.

Wear appropriate safety equipment.

After cleaning is complete, reassemble in reverse

order.

N250/300H−TWO STAGE

COOLANT COOLERS

Following are instructions for removal and internal

cleaning of coolant coolers.

Remove panels and top cover.

Drain the coolant. See Section 4.6.

Remove side panels from coolant cooler box.

Disconnect piping from coolant cooler inlet and

outlet ports.

Plug cooler inlet and outlet ports to prevent possible

contamination.

Remove coolant cooler holding screws from sides of

coolant cooler and remove cooler through side of

cooler shroud.

It is recommended the cooler be taken to a

professional cooler service shop for ﬂushing with an

appropriate environmentally safe cleaning agent.

Reassemble in reverse order.

Make sure fan guards are replaced.

Reﬁll the compressor with coolant. If con tamination

is suspected, replace with new coolant.

Replace ﬁll plug.

Run compressor for ten minutes. Check for possible

leaks. Check coolant level.

Replace enclosure panels.

WARNING

Strong cleaners can harm aluminum cooler parts.

Follow cleaner manufacturer‘s instructions for use.

Wear appropriate safety equipment.

AFTERCOOLER

Following are instructions for the removal and

internal cleaning of aftercoolers.

•

Disconnect hose from aftercooler inlet ﬂange.

Disconnect tube from aftercooler outlet ﬂange.

Remove aftercooler holding screws from aftercooler

support and remove cooler.

It is recommended the cooler be taken to a

professional cooler service shop for ﬂushing with an

appropriate environmentally safe cleaning agent.

Reassemble in reverse order.

Replace enclosure panels.

Watercooled Cooler Cleaning

A periodic inspection and maintenance program should

be implemented for watercooled heat exchangers. The

following steps should be taken:

Inspect ﬁlters in system and replace or clean as

required.

Carefully examine cooler tubes for scale and clean if

necessary. If a cleaning solution is used, be sure to

wash out all chemicals thoroughly with clean water

before returning the compressor to service. After

cleaning, examine the cooler for erosion or corrosion.

The internal cooler tubes can be cleaned by several

methods. Flushing a high velocity stream of water

through the tubes will remove many forms of

deposits. More severe deposits may require running

wire brushes or rods through the tubes. Also, rubber

plugs can be forced through the tubes if a special air

or water gun is available for this procedure.

A qualiﬁed cleaning service should be used for the

cleaning process. These organizations can evaluate

the type of deposit to be removed and supply the

appropriate solution and method for a complete

cleaning job.

When reinstalling bonnets to cooler shell, tighten

bolts uniformly in a cross−pattern. Overtightening

can result in cracking of the bonnet.

Cleaning solutions must be compatible with the

metallurgy of the cooler

Care must be taken to avoid damaging tubes if

mechanical cleaning procedures are used.

Airend bearings

Airend bearings are lubricated by the compressor coolant

and require no maintenance.

High Airend Temperature Sensor checking procedure

It is recommended that the discharge temperature sensor

(2ATT) is checked regularly as follows:

Aircooled machines

Stop the cooling blower by opening the blower / fan mo-

tor circuit breaker.

•

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 89

10.0 MAINTENANCE

Watercooled machines

Shut oﬀ the cooling water.

The machine should trip at 109° C (228° F).

CAUTION

Under no circumstances should these discharge

temperatures be exceeded. If the machine fails to

trip A FAULT EXISTS. Investigate immediately.

Separator tank scavenge check valve/oriﬁce

Disconnect tubing at each end of check valve/

screen/ oriﬁce assembly.

Check oriﬁce and clean if required. Use suitable tool

and remove oriﬁce from its housing. Be careful not to

damage ﬂared end of ﬁtting or O−ring.Wash housing

in safety solvent and blow dry.

Press the check valve/oriﬁce into ﬁtting block.

Assemble the check valve/oriﬁce assembly to the

tubing lines.The ﬁtting must be re−installed with the

check valve on the upstream side of the oriﬁce as

indicated by the ﬂow arrow.

Blower / fan Motor Bearing Maintenance

(Stored units)

Prior to placing a unit in storage for extended

intervals, rotate the blower motor several revolutions

by hand in the direction of rotation.

On N75 − 160, N250 − 300H aircooled units, whilst

rotating the motor, pump grease into the bearing

until grease is seen at the relief port.

Thereafter rotate the motor as described above

every three months until such time as the unit is

placed in service.

If the storage time is to exceed a total of nine (9)

months duration, the compressor must be ordered

for long term storage.

Motor cowl cleaning N75−160 units only

Ensure compressor is electrically isolated for at least

15 minutes before commencing any maintenance

work.

Remove panels from the compressor.

Using a clean dry cloth, remove dust from the

surface of the motor cowl and ensure all ventilation

slots are free of obstructions.

Replace panels to the compressor.

Drive Box Filter Removal / Replacement

Ensure compressor is electrically isolated for at least

15 minutes before commencing any maintenance

work.

Unclip the front grill of the drive box ﬁlter.

•

Remove the ﬁlter pad from the housing and replace

with a new ﬁlter pad from Ingersoll Rand.

Replace front grill to the drive box ﬁlter.

Moisture Separator Check / Cleaning

Ensure compressor is electrically isolated for at least

15 minutes, before commencing any maintenance

work.

Isolate the compressor from the system and fully

discharge the compressed air within the unit.

Remove plastic tube from the ﬁtting located on the

bottom of the moisture separator.

Remove the bowl of the moisture trap, clean and

replace.

Condensate (Moisture) Drain Valve / Trap

Ensure compressor is electrically isolated for 15

minutes and all pressure is relieved from system.

Remove all pipes going to and from the valve (or

trap).

Disconnect any electrical cables to the valve (or trap).

Determine the type of condensate drain device and

continue in the appropriate section below:−

Timed Solenoid Drain Valves (where ﬁtted) Check /

Cleaning

Remove the central nut and then the electrical coil.

Remove screws holding bonnet of valve and carefully

split the valve. Clean and inspect all internal parts.

Similarly check and clean the ball valve and needle

valve.

Replace any defective parts as identiﬁed in parts

manual.

Re−assemble and later, with machine running, check

that condensate and air is expelled at frequency

and duration set into the INTELLISYS controller (see

section 9.6).

•

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

10.0 MAINTENANCE

No Loss Drain Trap (where ﬁtted) Check / Cleaning

Remove the four socket head screws then carefully

split the trap. Clean and inspect all internal parts

with particular attention to the water level sensor(s).

If the stainless steel strainer mesh is blocked, remove

it and clean in a weak detergent solution.

Replace any defective parts (see parts manual for

repair kit).

Re−assemble and later, with machine running, check

that condensate is expelled at regular period and no

alarms are signaled on trap or on INTELLISYS display.

Fluid and Vibration Monitoring

Ingersoll Rand recommends incorporating predictive

maintenance, speciﬁcally the use of coolant and vibration

analysis, into all Preventative Maintenance programs.

Predictive Maintenance is designed to increase system

reliability and prevent costly downtime. Through the

use of sophisticated diagnostic tools, including ﬂuid,

vibration, and optional air analysis, IR Certiﬁed Service

Technicians can identify and correct potential problems

BEFORE they can cause expensive unscheduled

downtime.

How does predictive analysis work? By establishing an

initial baseline for normal operation, and then regularly

monitoring ﬂuid and vibration conditions, any sudden

deviation or signiﬁcant increase from this baseline can

be identiﬁed and investigated to pinpoint the cause.

More quickly diagnosing potential problems can directly

save money by preventing costly failures and reducing

or eliminating downtime. In addition, regular condition

monitoring also helps to maximize the time between

expensive preventative maintenance intervals, such as

component rebuilds and coolant changes.

•

Coolant Sampling Procedure

Bring unit up to operating temperature. Draw sample,

using pump kit, from separator tank port. DO NOT draw

sample from drain port or oil ﬁlter. Use a new hose on

pump for each sample, failure to do this can give false

readings.

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 91

11.0 FAULT FINDING

11.1 GENERAL FAULTS

WARNING

When attempting to identify and remedy any fault or failure, ensure it is only attempted by qualiﬁed person-

nel and that the safety and maintenance sections of this manual have been read and are fully understood and

followed. Major overhauls should only be carried out by a qualiﬁed Ingersoll Rand representative. Failures

caused by ﬁtting parts not recommended by Ingersoll Rand or non−authorized Ingersoll Rand personnel may

not be covered by the terms of any warranty agreement

SYMPTOM FAULT REMEDY

Compressor will not

start

No power supply to package Check supply is switched on. If so, contact a

qualiﬁed electrician.

Intellisys controller failure Check supply to unit. Replace unit.

Starter failure Isolate supply, lock oﬀ and tag. Replace

failed

component or contact your local

Ingersoll Rand representative

Compressor stops and

will not restart

Drive controller has tripped See section 11.2 & 11.3

Intellisys controller has tripped the

compressor See section 11.2 & 11.3

Maximum number of starts per hour

exceeded

Compressor is stopped

and will not restart

Intellisys controller has tripped the

compressor and has not been reset See section 11.2 & 11.3

Emergency stop has been pressed and

not released Identify reason why, repair fault, disengage

button and reset Intellisys controller

Emergency stop has been pressed and

released but Intellisys controller has not

been reset

Repair fault and reset Intellisys controller

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

11.0 FAULT FINDING

SYMPTOM FAULT REMEDY

Compressor will not meet

pressure required by system Compressor not sized to

meet system requirements or

requirements have been changed.

Contact your local IR representative

Air loss due to pipe, hose, joint or

seal failure Overhaul or replace

Air loss due to blowdown valve stuck

open Overhaul or replace

Air loss through pressure relief valve

not seating or set incorrectly Overhaul or replace

Air loss due to moisture separator

drain trap stuck open Overhaul or replace

Motor speed too low caused by drive

incorrectly set Contact your local IR representative

Motor speed too low caused by fault

in drive settings See section on drive faults

Intellysis controller fault Overhaul or replace

Drive motor fault See section on drive faults

Pressure transducer faulty,

incorrectly calibrated or EMF

interference

Recalibrate or replace

Incorrect Intellisys controller settings Check and modify settings

Inlet grill or ducting is blocked Check and clean

Air ﬁlter dirty or collapsed Replace

Inlet valve not opening fully Overhaul or replace

Separator element dirty or collapsed Replace

Pipe / Hoses blocked or collapsed Clean or replace

Cooler core blocked Clean or replace

Minimum pressure check valve not

functioning correctly Overhaul or replace

Equipment between compressor

and customer measuring point

causing pressure drop / pressure loss

Review system requirements

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 93

11.0 FAULT FINDING

SYMPTOM FAULT REMEDY

Pressure produced

by compressor is too

highcompressor is too high

due to speed not reducing as

demand reducesreduces

Intellisys set incorrectly Check and modify settings

Pressure transducer may be

faulty, incorrectly calibrated or

not receiving pressure signal

Recalibrate or replace

Drive settings fault Contact your local IR representative

Compressor discharge air too

hot

High ambient temperature Review installation and system parameters

Insuﬃcient cooling air Check ducting and cooling air path, check

direction of blower rotation

Blocked aftercooler matrix Clean or replace

Compressor package produces

excessive noise

Panels or doors are not closed

properly

Rectify fault

Air leaks from internal pipework /

components

Overhaul or replace

Blower or blower motor bearings

worn

Overhaul or replace

Loose debris impacting on

blower during rotation

Remove and rectify any damage

Blowdown valve stuck open Overhaul or replace

Pressure relief valve not seating

correctly

Overhaul or replace

Vibration due to motor, airend or

blower imbalance

Overhaul or replace

Airend requires overhaul Contact your local IR representative

Discharge air is contaminated

with coolantcoolant

Scavenge pipe is blocked, broken

or o−ring is not sealing

Clean or replace

Separator element is punctured,

or incorrect, or requires changing,

or not sealing correctly

Replace

Incorrect coolant has been added Drain system, check for damage. Clean, reﬁll

with correct coolant.

System has been overﬁlled with

coolant

Check for damage, drain excess.

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

11.0 FAULT FINDING

SYMPTOM FAULT REMEDY

Discharge air is contaminated

with condensate Aftercooler not functioning correctly Clean or replace

Moisture separator drain trap faulty Overhaul or replace

Continuous low speed / low ambient

operation causing condensate build

Review system requirements and

contact your local IR representative

Compressor package draws too

much current Compressor operating above rated

pressure Check and modify settings. Review

system requirements and contact your

local IR representative

Separator ﬁlter element dirty or

blocked Replace

Voltage supply is low or unbalanced Contact your local IR representative or a

qualiﬁed electrician

Airend is damaged Contact your local IR representative

Excessive coolant consumption Coolant system leak Overhaul or replace

See also ‘discharge air is contaminated

with coolant’ See above

11.2 INTELLISYS FAULTS

INDICATED ON THE INTELLISYS CONTROLLER

FAULT CAUSE REMEDY

Emergency Stop Emergency stop button has

been pressed. Identify reason why, repair fault, disengage button

and reset Intellisys controller

Blower motor overload Blower is blocked, damaged or

blower motor is faulty. Remove blockage, repair or replace damaged

components

High airend discharge

temperature

Compressor operating above

rated pressure Check and modify settings. Review system

requirements and contact your local IR

representative

Low coolant level Check for leaks. See also ‘discharge air is

contaminated with coolant’. Top up coolant.

High ambient temperature Review installation and system parameters

Insuﬃcient cooling air Check ducting and cooling air path.

Blocked coolant cooler matrix Clean or replace

Blower motor direction of

rotation incorrect Wire correctly

Check setpoints Controller software has been

changed Recalibrate all sensors and check setpoints

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com 95

11.0 FAULT FINDING

FAULT CAUSE REMEDY

Remote start failure Remote start button is pressed

after machine is running or

remote start button remains

closed.

Check operation of buttons or operating

procedures

Remote stop failure Remote stop button remains

open and either start button is

pressed

Check operation of buttons or operating

procedures

Sensor failure Sensor is missing or faulty Install, repair or replace faulty sensor

Compressor trips indicating a

high compressor temperature. Insuﬃcient cooling taking place If machine is watercooled or sea watercooled,

check that the cooling water is ﬂowing. Check

that there is no air in the water cooling system.

Check that the strainer is not blocked.

Intellisys controller has

tripped the compressor A fault has occurred Repair fault / reset Intellisys controller

Invalid Calibration Calibration done with pressure

in compressor. Depressurise and re calibrate with pressure pipe

to sensor disconnected. If fault still exists, replace

pressure transducer.

Low sump pressure System leak Located and repair

Minimum pressure check valve

faulty Repair with service kit

Blowdown valve faulty Repair with service kit

Loss of control power Check 110V circuit breaker

Check wiring

Check contactor KM1

Check motor rotation Drive system fault Contact your local IR representative

VSD communication failure Communication wiring faulty Check and replace if required

Drive faulty Contact your local IR representative

Intellisys faulty Contact your local IR representative

VSD initialisation fault Communication wiring faulty Check and replace if required

Drive faulty Contact your local IR representative

Intellisys faulty Contact your local IR representative

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S

http://air.irco.com

11.0 FAULT FINDING

11.3 DRIVE FAULTS

INDICATED ON THE INTELHYS CONTROLLER

The drive controller is directly linked to the Intellisys controller. Faults in the drive controller will be displayed on the

Intellisys controller as ‘VSD fault 0, VSD fault 1’ etc.

The following VSD faults may be investigated and remedied at source. For all other VSD faults, contact your local IR

customer support representative.

FAULT CAUSE ACTION

VSD Fault 1 Over−current Check separator element.

Check cooler, pipework and moisture separator for

blockages.

Check operation of minimum pressure check valve.

VSD Fault 3 Drive temperature too high Check drive ﬁlter, replace if necessary

Check drive cooling fan circuit breaker

Check wiring

Irn200h Cc

Navigation menu

Versions of this User Manual:

Views

Navigation