Ingersoll-Rand EPE 50 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:

N
Nancy PattersonAug 9, 2025
What to do if my Ingersoll-Rand Air Compressor shuts down?
- H
  hollyhillAug 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.
S
Stephanie MorrisAug 14, 2025
Why does my Ingersoll-Rand EPE 50 Air Compressor have low system air pressure?
- T
  Theresa TurnerAug 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.
J
Justin GilbertAug 21, 2025
How to troubleshoot a Ingersoll-Rand EPE 50 Air Compressor that fails to start?
- D
  Dana VazquezAug 21, 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.
E
Edward BrownAug 27, 2025
What to do if my Ingersoll-Rand Air Compressor has high coolant consumption?
- A
  Aaron MurrayAug 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.
M
margarethurleySep 1, 2025
How to remove water from the air system of my Ingersoll-Rand EPE 50?
- T
  Teresa WarnerSep 1, 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 EPE 50 Specifications

General

Brand	Ingersoll-Rand
Model	EPE 50
Category	Air Compressor
Language	English

Summary

0.0 SAFETY AND WARNINGS

0.1 SAFETY INSTRUCTIONS

Read all instructions carefully before installation and operation.

0.2 SAFETY PRECAUTIONS

Understand hazard signal words (DANGER, WARNING, CAUTION, NOTICE).

SAFETY SHUTDOWN

GENERAL WARNING

CRITICAL SAFETY WARNING

2.0 INSTALLATION

2.1 VENTILATION REQUIREMENTS

Ensure adequate ventilation for heat dissipation and prevent recirculation.

2.2 FOUNDATION REQUIREMENTS

Follow foundation plans for proper placement and vibration isolation.

2.3 PIPING GUIDELINES

Guidelines for air discharge piping, avoiding plastic and soldered copper.

2.4 ELECTRICAL INSTALLATION

ELECTRICAL INSTALLATION OVERVIEW

Confirm line voltage, starter box compliance, and electrical connections.

DRIVE MOTOR ROTATION CHECK

How to check and correct compressor drive motor rotation.

3.0 INTELLISYS CONTROLLER

INTELLISYS CONTROLLER OVERVIEW

Overview of the Intellisys controller display and its main functions.

3.1 EMERGENCY STOP SWITCH

Function of the emergency stop switch for immediate shutdown.

3.4 PUSH BUTTONS

SET POINT AND CALIBRATION CONTROLS

3.5 SET POINT PROCEDURE

3.6 WARNINGS

3.7 ALARMS

4.0 SYSTEMS

4.3 COOLANT SYSTEM

4.4 COMPRESSED AIR SYSTEM

4.5 COOLANT/AIR SEPARATION SYSTEM

4.6 ELECTRICAL SYSTEM

4.7 COMPRESSOR CONTROL SYSTEM

AUTOMATIC UNLOADED START

ON/OFF LINE CONTROL

UNLOADED STOP

AUTOMATIC START/STOP CONTROL

4.8 OPTIONS

4.8.2 REMOTE START/STOP

4.8.3 POWER OUTAGE RESTART

4.8.5 MODULATION

5.0 SCHEDULED PREVENTATIVE MAINTENANCE

5.1 MAINTENANCE SCHEDULE

Specifies maintenance tasks and intervals based on hours or time.

5.3 MAINTENANCE PROCEDURES

5.4 INLET AIR FILTER

5.5 COOLANT FILTER

5.6 COOLANT

5.8 COOLANT SEPARATOR ELEMENT

5.10 MOTOR LUBRICATION

5.16 FLUID AND VIBRATION MONITORING

6.0 TROUBLE SHOOTING CHART

7.1 ELECTRICAL SCHEMATIC-FULL VOLTAGE

7.2 ELECTRICAL SCHEMATIC-STAR-DELTA

7.6 BASIC FLOW SCHEMATIC - AIR COOLED

7.7 BASIC FLOW SCHEMATIC - WATER COOLED

7.8 TYPICAL SYSTEM FLOW DIAGRAMS

8.0 WATER QUALITY RECOMMENDATIONS

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