Ingersoll-Rand IRN 7.5/5.5 kW User Manual

Ingersoll-Rand IRN 7.5/5.5 kW

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OPERATION AND MAINTENANCE MANUAL

C.C.N. : 80442981

REV. : A

DATE : JANUARY 2007

Ensure that the operator reads and understands the

decals and consults the manuals before maintenance or

operation.

Ensure that maintenance personnel are adequately

trained, competent and have read the Maintenance

Manuals.

Ensure that the Operation and Maintenance manual is

not removed permanently from the machine.

IRN 7.5 − 15 HP (5.5 − 11 kW)

ENGLISH

PORTUGUESE

SPANISH

PRINT LANGUAGE

FRENCH

Table of Contents

Questions and Answers:

C
Carolyn RossAug 19, 2025
Why is my Ingersoll-Rand Air Compressor drawing high current?
- T
  Tammy MooreAug 19, 2025
  High current draw in your Ingersoll-Rand Air Compressor can occur due to several reasons. It might be that the compressor is operating above its rated pressure, in which case you should set the pressure to the correct rating for the machine. Other causes include a contaminated separator cartridge (change the air filter and separator cartridge), low voltage (ensure voltage does not drop below 10% on start up and 6% running), unbalanced voltage (correct the incoming supply voltage), a damaged airend (change the airend), or contaminated compressed air filters (replace the air filters).
S
ssmithAug 21, 2025
Why does my Ingersoll-Rand Air Compressor shut down periodically?
- A
  Ashley GutierrezAug 21, 2025
  If your Ingersoll-Rand Air Compressor machine shuts down periodically and indicates a fault condition, it could be due to high airend temperature, in which case you should top up the coolant. Another potential cause is line voltage variation out of range. To resolve this, ensure the voltage is correctly between operating limits and that no voltage spikes are being introduced into the supply by external equipment or power feed.
R
Robert WarrenAug 23, 2025
Why is the system air pressure low in my Ingersoll-Rand IRN 7.5/5.5 kW?
- M
  Mary HowardAug 25, 2025
  If your Ingersoll-Rand Air Compressor has low system air pressure, it could be due to a contaminated separator cartridge (fit a new separator cartridge), incorrect pressure transducer setting (set pressure to correct rating for machine), minimum pressure valve malfunction, air system leaks, inlet valve malfunction or the system demand exceeds compressor delivery (reduce demand or install additional compressor).
N
Nicholas HillAug 26, 2025
How to troubleshoot a Ingersoll-Rand Air Compressor that fails to start?
- M
  Mrs. Lisa SmithAug 26, 2025
  If your Ingersoll-Rand Air Compressor fails to start, it could be due to mains power or control voltage not being available. Check the incoming power supply and the control circuit fuse.
J
Janet Mcdonald MDAug 28, 2025
What to do if my Ingersoll-Rand IRN 7.5/5.5 kW trips due to over temperature?
- J
  Jonathan Green DDSAug 28, 2025
  If your Ingersoll-Rand Air Compressor trips due to over temperature, it could be caused by several factors. The compressor module might be operating above its rated pressure, which can be addressed by setting the pressure to the correct rating. Other potential causes include blocked filters or separator cartridge, restricted air flow through the dryer, a blocked package pre-filter (clean or replace it), a blocked cooler (clean it), missing or incorrectly fitted enclosure panels (ensure they are correctly fitted), low coolant level (top up coolant and check for leaks), high ambient temperature (re-site the compressor), or restricted cooling air flow (ensure correct air flow to the compressor).
W
William SnyderAug 30, 2025
What causes the pressure relief valve to open on my Ingersoll-Rand IRN 7.5/5.5 kW?
- E
  estesmelindaAug 30, 2025
  If the pressure relief valve on your Ingersoll-Rand Air Compressor opens, it could be due to a defective transducer or incorrect pressure transducer setting (replace or set pressure to the correct rating for the machine), minimum pressure valve malfunction, inlet valve malfunction, contaminated compressed air filter(s) (replace the air filter(s)), a blocked separator cartridge (clean or replace separator cartridge), blocked compressed air filters (clean or replace compressed air filters), or frozen condensate in the dryer (check hot gas bypass valve and ensure the ambient temperature is greater than 35°F (2°C)).
S
Susan WrightSep 1, 2025
What causes excessive noise in my Ingersoll-Rand Air Compressor?
- L
  Lisa ClarkSep 1, 2025
  Excessive noise level in your Ingersoll-Rand Air Compressor can be caused by air system leaks, a defective airend, a defective motor or loose components.
C
Charles Adams IISep 4, 2025
What causes high discharge pressure in my Ingersoll-Rand IRN 7.5/5.5 kW?
- M
  Michelle CarterSep 4, 2025
  If your Ingersoll-Rand Air Compressor has high discharge pressure, it could be due to a defective or incorrect pressure switch setting (replace or set the pressure to the correct rating for the machine), or an inlet valve malfunction.
F
fmillerSep 6, 2025
Why is my Ingersoll-Rand IRN 7.5/5.5 kW Air Compressor using excessive coolant?
- A
  Alexis MartinezSep 6, 2025
  If your Ingersoll-Rand Air Compressor is consuming coolant excessively, it might be due to a separator cartridge leak (fit a new separator cartridge), a blocked separator cartridge drain, the compressor operating below its rated pressure (set the pressure to the correct rating for the machine), or a coolant system leak.
D
David McdowellSep 8, 2025
What causes low current draw in my Ingersoll-Rand Air Compressor?
- D
  David VasquezSep 8, 2025
  Low current draw in your Ingersoll-Rand Air Compressor can be attributed to several factors. It could be due to a contaminated air filter (change the air filter), the compressor operating unloaded (set pressure to correct rating for machine), or high voltage (reduce site voltage to correct operating voltage).

Ingersoll-Rand IRN 7.5/5.5 kW Specifications

General

Power	7.5/5.5 kW
Model	IRN 7.5/5.5 kW
Motor Type	Electric
Type	Rotary Screw
Brand	Ingersoll-Rand
Air Delivery	Varies by model; consult specific model datasheet
Weight	Varies by configuration

Summary

Decals

ISO Symbols

Explains graphic symbols used for safety and operations.

ANSI Symbols

Details safety warnings and instructions using ANSI standards.

Decals (I.S.O.)

Safety

General Safety Information

Provides essential safety guidelines for operators and maintenance personnel.

Compressed Air Safety

Details hazards and precautions related to handling compressed air.

Electrical Safety

Outlines electrical hazards and precautions for safe operation and maintenance.

Operating Instructions

General Operation

Control Panel Overview

Identifies and explains the function of key indicators and controls on the operator panel.

Starting the Compressor

Details the procedure for safely starting the compressor.

Normal Stopping Procedure

Outlines the correct steps for shutting down the compressor during normal operation.

Emergency Stopping Procedure

Explains how to perform an emergency shutdown and the implications.

Indicator Symbols and Operation

Maintenance

Routine Maintenance Tasks

Describes regular tasks required for compressor upkeep and component longevity.

Top Up Coolant Procedure

Coolant Change Procedure

Coolant Filter Change Procedure

Air Filter Element Change Procedure

Separator Cartridge Change Procedure

Air Filter Maintenance

Refrigeration Circuit Troubleshooting

Trouble Shooting

Compressor Fails to Start

Explains reasons why the compressor may not start and remedies.

Machine Shuts Down Periodically

Addresses intermittent shutdowns and fault indications, with causes and solutions.

High Current Draw Issues

High Discharge Pressure

Low System Air Pressure

Over Temperature Trips

Investigates reasons for compressor over-temperature trips and their solutions.

Shaft Seal Leaking

Pressure Relief Valve Operation

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