Ingersoll-Rand EP 20 User Manual

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®

APDD 739

June 1999

XF 20 - 30

EP 20 - 30

HP 20 - 30

HXP 20 - 30

OPERATORS/

INSTRUCTION MANUAL

OPTIONS

Before installation or starting the compressor for

the first time, this manual should be studied careful-

ly to obtain a clear knowledge of the unit and of the

duties to be performed while operating and main-

taining the unit.

RETAIN THIS MANUAL WITH UNIT.

This Technical manual contains IMPORTANT SAFE-

TY DATA and should be kept with the air compres-

Table of Contents

Questions and Answers:

K
Keith HuffAug 14, 2025
What to do if Ingersoll-Rand Air Compressor fails to start?
- L
  Lauren BradleyAug 14, 2025
  If your Ingersoll-Rand Air Compressor fails to start, there are several potential causes and solutions: * Check the fuses, transformers, and wiring connections to ensure that 110/120V control voltage is available. * Inspect the contactors in case of a "STARTER FAULT". * If there is an "EMERGENCY STOP" message, rotate the emergency stop button to disengage it and press the "SET" button twice. * If the message is "MAIN MTR OVER LD", manually reset the main overload relay and press the "SET" button twice. * For "PRES SENSOR FAIL", "TEMP SENSOR FAIL", or "NO CONTROL POWER" messages, check for a defective sensor, a bad sensor connection, or broken sensor wires.
K
kguerreroAug 18, 2025
Why does my Ingersoll-Rand EP 20 Air Compressor shut down?
- B
  Brandi DeleonAug 18, 2025
  Your Ingersoll-Rand Air Compressor might shut down due to several reasons: * If there is a "HIGH AIREND TEMP." message, ensure the installation area has adequate ventilation. * For a "HIGH AIR PRESS." message, make sure the cooling fan is operating. If not, reset the circuit breaker inside the starter box. * If the message is "LOW SUMP PRESS.", check the coolant level and add coolant if needed. * In case of "PRES SENSOR FAIL" or "TEMP SENSOR FAIL", check for a defective sensor, a bad sensor connection, or broken sensor wires.
S
Sarah JoyceAug 21, 2025
What causes low system air pressure in Ingersoll-Rand EP 20?
- A
  Ashley HillAug 21, 2025
  Low system air pressure in your Ingersoll-Rand Air Compressor can be caused by: * The compressor running in "Unload" Mode - press the "UNLOAD/LOAD" button. * The controller off-line set point being too low - press the "UNLOAD/STOP" button and set the off-line set point at a higher value. * A dirty air filter element - check the filter condition and replace it as required.
R
Roger ThomasAug 25, 2025
What to do if Ingersoll-Rand EP 20 has high coolant consumption or coolant in air system?
- S
  Steven SimmonsAug 25, 2025
  If your Ingersoll-Rand Air Compressor is experiencing high coolant consumption or has coolant in the air system: * Check the coolant level and lower it by draining if it's excessive. * Check the separator pressure drop, as a plugged separator element could be the cause. * Inspect the coolant system for leaks and repair them.
N
nathansmithAug 28, 2025
How to reduce excessive noise level of Ingersoll-Rand Air Compressor?
- S
  Stacey BallardAug 28, 2025
  To address an excessive noise level in your Ingersoll-Rand Air Compressor: * Inspect the moisture separator/drain trap and clean it if required. Replace the separator/trap if it is defective. * Inspect and clean the aftercooler core if it's dirty.
M
Madeline DudleyAug 30, 2025
What causes black residue on belt guards of Ingersoll-Rand EP 20 Air Compressor?
- K
  Kaitlyn HarrisAug 31, 2025
  Black residue on the belt guards of your Ingersoll-Rand Air Compressor is typically caused by: * Loose V-belts - adjust the belt tension. * Misaligned sheaves - align the sheaves.
M
Michael AdamsSep 3, 2025
What causes excessive vibration in Ingersoll-Rand EP 20 Air Compressor?
- R
  robert21Sep 3, 2025
  Excessive vibration in your Ingersoll-Rand Air Compressor can be due to: * Loose components - inspect and tighten them. * Motor or compressor bearing failure - contact an authorized Distributor or Air Center immediately and do not operate the unit.
J
Justin WhiteSep 6, 2025
What causes Pressure relief valve to open on Ingersoll-Rand EP 20 Air Compressor?
- C
  chinesSep 6, 2025
  The pressure relief valve on your Ingersoll-Rand Air Compressor may open if the compressor is operating over pressure. Adjust the Intellisys setpoints to resolve this issue.
W
Willie SmithSep 10, 2025
What causes Shaft Seal leak in Ingersoll-Rand Air Compressor?
- M
  Mr. Kyle VanceSep 10, 2025
  A shaft seal leak in your Ingersoll-Rand Air Compressor is caused by a defective shaft seal. Replace it according to the manual or contact an authorized Distributor or Air Center.

Ingersoll-Rand EP 20 Specifications

General

Brand	Ingersoll-Rand
Model	EP 20
Category	Air Compressor
Language	English

Summary

Warranty Information

Bonded Warranty and Registered Start Up

Details the standard warranty terms, conditions, and registration process.

Safety and Warnings

Safety Instructions and Precautions

Provides essential safety guidelines and critical precautions for operation and maintenance.

Warning Levels and Signal Words

Safety Shutdown Procedures

Details the high air temperature shutdown function and its operational procedure.

Installation Guide

Ventilation and Environmental Considerations

Covers ventilation requirements and ambient environmental factors for compressor placement.

Foundation and Piping Requirements

Directs users to foundation plans and discusses essential piping considerations.

Electrical Installation

Details electrical connection requirements, wiring, and safety measures.

Rotation Check

Describes how to verify correct motor and fan rotation for proper operation.

Starting and Stopping Procedures

Outlines the step-by-step process for safely starting and stopping the compressor.

System Components and Operation

General System Overview

Describes the main components and basic function of the air compressor system.

Coolant System

Air System Components

Electrical System

Describes electrical system components, wiring, and available controller options.

Capacity Control Modes

Explains on-line/off-line, automatic start/stop, and modulation control modes.

Modulation and ACS Control

Intellisys Controller

Emergency Stop and Indicators

Describes the emergency stop function and power indicator light.

Intellisys Push Buttons

Setpoint Procedure

Setpoint Adjustment Guide

Warnings and Alarms

Alarm Messages and Handling

Lists various alarm conditions, their causes, and how to reset them.

Scheduled Preventative Maintenance

Maintenance Schedule Overview

Details routine maintenance tasks and recommended intervals for optimal operation.

General Maintenance Procedures

Troubleshooting Guide

Standard Control Troubleshooting

Provides a chart of common troubles and corresponding check points for standard controls.

Intellisys Control Troubleshooting

Lists common troubles, display messages, and corrective actions for Intellisys controls.

Reference Drawings and Diagrams

Electrical Schematics

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