Ingersoll-Rand EP 75-100 User Manual

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XFE/EPE/HPE 50

XF/EP/HP 60

XF/EP/HP/XP 75-100

ML/MM/MH 37-75

OPERATORS/

INSTRUCTION MANUAL

OPTIONS

Before installation or starting the compressor for the

first time, this manual should be studied carefully to

obtain a clear knowledge of the unit and of the duties

to be performed while operating and maintaining the

unit.

RETAIN THIS MANUAL WITH UNIT.

This Technical manual contains IMPORTANT SAFETY

DATA and should be kept with the air compressor at all

times.

FORM: APDD 696C

July 2002

More Than Air. Answers.

Online answers: http://www.air.irco.com

Phone: 1-800-526-3615

CCN: 80440332 REV: C

Table of Contents

Questions and Answers:

L
Lauren WillisAug 9, 2025
What to do if my Ingersoll-Rand EP 75-100 Air Compressor shuts down?
- J
  Jessica WalshAug 9, 2025
  If your Ingersoll-Rand Air Compressor shuts down, ensure the installation area has adequate ventilation and the cooling fan is operating. If not, reset the circuit breaker inside the starter box. Check and add coolant if required. Clean dirty cooler cores. Also, inspect for a restricted or malfunctioning blowdown valve or minimum pressure check valve, and check for air leaks from the tank or blowdown piping. Adjust sump pressure, check for defective sensor, bad sensor connection, or broken sensor wires. Try interchanging any two line connections (L1, L2, L3) at the starter. Check for loose wires and the supply voltage. Verify the heater size and inspect starter contactors.
J
Joseph HernandezAug 14, 2025
Why does my Ingersoll-Rand EP 75-100 have low system air pressure?
- T
  Tiffany JeffersonAug 14, 2025
  If your Ingersoll-Rand Air Compressor has low system air pressure, first check if the compressor is running in 'Unload' Mode and press the 'UNLOAD/LOAD' button. If it is in 'UNLOAD/STOP' mode, set the off-line set point at a higher value. Check and replace the filter if required. Inspect and repair the air system piping. Finally, check the control system operation, and consider installing a larger or an additional compressor.
F
Frances SuttonAug 20, 2025
How to troubleshoot a Ingersoll-Rand EP 75-100 that fails to start?
- P
  pamelahuntAug 20, 2025
  If your Ingersoll-Rand Air Compressor fails to start, check the fuses, transformers, and wiring connections to ensure 110/120V control voltage is available. Inspect the contactors. Rotate the emergency stop button to disengage it and press the 'SET' button twice. Manually reset the main or fan motor over-load relay and press the 'SET' button twice. Also, check for a defective sensor, a bad sensor connection, or broken sensor wires.
T
timothysharpAug 27, 2025
What to do if my Ingersoll-Rand EP 75-100 Air Compressor has high coolant consumption?
- M
  michael65Aug 27, 2025
  If your Ingersoll-Rand Air Compressor has high coolant consumption or coolant in the air system, check the coolant level and lower it by draining if it's excessive. Inspect the separator pressure drop; if it's low, replace the element. Remove and inspect the orifice/screen, and clean if required. Ensure you operate at the rated pressure and reduce the system load. Inspect and repair any leaks.
S
Samuel SmithSep 2, 2025
How to remove water from the air system of my Ingersoll-Rand EP 75-100 Air Compressor?
- B
  Brad YoungSep 2, 2025
  If there is water in the air system of your Ingersoll-Rand Air Compressor, inspect and clean the moisture separator/drain trap; replace the separator/trap if defective. Install enclosure panels and slope the drain line away from the trap. Install a drip leg.

Ingersoll-Rand EP 75-100 Specifications

General

Model	EP75-100
Power Source	Electric
Cooling Method	Air Cooled
Manufacturer	Ingersoll Rand
Voltage	460V
Phase	Three Phase

Summary

Introduction and Initial Guidance

Warranty Information

General Safety and Warnings

Safety Instructions and Precautions

Guidelines for safe installation, operation, maintenance, including electrical safety.

Operational Safety Alerts

High Air Temperature Shutdown Procedure

Describes the Intellisys high discharge air temperature shutdown function and its check.

Piping and Air Use Warnings

Warnings regarding piping materials, compressor use for breathing air, and system compatibility.

Safety Labels for Moving Parts

Fan Blade and Moving Parts Safety Labels

Warnings about exposed fan blades/moving parts, emphasizing safe operation and servicing.

Safety Labels for Surfaces and Pressure

Hot Surface and High Pressure Air Labels

Cautions on hot surfaces and high-pressure air, requiring safety precautions during servicing.

Electrical and Operational Safety Notices

Electrical Power and Voltage Safety Notices

Notices on hazardous voltage, electrical inlet, and remote start/stop safety procedures.

Equipment Receipt and Handling

Installation Requirements

Ventilation and Foundation Requirements

Specifies ventilation needs and refers to foundation plans for compressor placement.

Piping Installation Safety

Discusses piping safety, warns against plastic pipe, recommends metal bowls.

Electrical Installation Details

Electrical System Components and Fuses

Details data plates, starter box, and fuse table for electrical setup.

Electrical Wiring and Motor Checks

Drive Motor Rotation Check

Instructions to check the correct rotation of the compressor drive motor.

Intellisys Control and Operation

Intellisys Rotation and Operating Instructions

Covers Intellisys rotation checks and guidance on starting, stopping, and emergency procedures.

Outdoor Installation Guidelines

Outdoor Sheltered Installation Recommendations

Intellisys Controller Interface Overview

Controller Display and Button Layout

Intellisys Control Functions

Emergency Stop and Power Lights

Explains the emergency stop switch, power on light, and power indicator functions.

Push Button Operations

Details operation of START, STOP, UNLOAD, DISPLAY SELECT, and SET buttons.

Intellisys Display Navigation and Calibration

Pressure Sensor Calibration Procedure

Intellisys Set Point Configuration

Set Point Procedures and Variables

Details modifying controller set points, including variable lists and limits.

Intellisys Alarms and Fault Diagnosis

Alarm Messages and Causes

Lists alarm messages, triggers, and reset procedures, including emergency stop.

Compressor System Components Overview

Compressor Control System Features

Control System Overview and Modes

Automatic Start/Stop Control Logic

Unloaded Stop and Auto Start/Stop Operation

Compressor Options and Operation Examples

Available Control Options

Advanced Control Option Details

Scheduled Preventative Maintenance

Maintenance Schedule Table

Table detailing required maintenance actions and their recommended intervals.

Maintenance Records and Procedures

Importance of Maintenance Records

Filter Maintenance Procedures

Inlet Air Filter Replacement

Instructions for replacing inlet air filter element, including indicators and procedures.

Coolant Filter Replacement

Guidance on when and how to replace coolant filter element to prevent compressor damage.

Coolant System Servicing

Coolant Types, Intervals, and Fill Quantities

Separator System Maintenance

Separator Tank Scavenge Maintenance

Coolant Separator Element Replacement

Cooler Core Cleaning Procedures

Motor Lubrication Procedures

Motor Lubrication Intervals and Amounts

Motor Lubrication Steps and Grease Selection

Hose Replacement Procedures

Monitoring and Sampling Procedures

Troubleshooting Guide

Compressor Start/Shutdown Troubleshooting

Chart listing causes and actions for compressor start failures and shutdowns.

System and Operational Troubleshooting

System Issues Troubleshooting

Troubleshooting guide for high coolant consumption, water in air, noise, vibration, pressure relief valve issues.

Reference Drawings and Schematics

Electrical Schematics

Wiring diagrams for full voltage and star-delta electrical systems.

Water Quality Recommendations

Importance of Water Quality for Cooling

Water Quality Parameters and Analysis

Water Quality Analysis and Control Methods

Langelier Index and Dissolved Oxygen Control

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