Ingersoll-Rand EH 3000 User Manual

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EH Series Desiccant Dryer

Models 150-8000

Operator’s Manual

Manual Del Operador

ES

Manual do Operador

PT

Manuel De L’opérateur

FR

Operator’s Manual

EN

December 2013

PRINT LANGUAGE

ENGLISH

FRENCH

PORTUGUESES

SPANISH

Table of Contents

Questions and Answers:

D
Destiny MezaAug 13, 2025
Why does my Ingersoll-Rand Dryer have an elevated dew point?
- V
  Virginia SanchezAug 14, 2025
  If your Ingersoll-Rand Dryer has an elevated dew point, several factors could be the cause. It might be due to an insufficient purge rate, so you should check the purge flow settings and piping for obstructions, cleaning them as necessary. Low inlet air pressure could also be the culprit, so verify the pressure source. Other potential causes include a flow rate higher than the design condition (check the flow rate), an inlet temperature exceeding the design condition (inspect and service the aftercooler), water entering the desiccant bed (check the air/moisture separator and pre-filter, replacing the desiccant if needed), or desiccant contaminated by oil (install a pre-filter and replace the desiccant).
S
Shelby FischerAug 17, 2025
What to do if Ingersoll-Rand Dryer fails to shift?
- B
  brownabigailAug 17, 2025
  If your Ingersoll-Rand Dryer fails to shift, begin by checking the power input. If that's not the issue, inspect the no-loss drain valve, pilot air line, control air line filter, and regulator setpoint. Also, check the pressure switch, ensuring it opens above 65 psig and closes below 40 psig.
N
Nancy CummingsAug 21, 2025
Why is there excessive pressure drop in my Ingersoll-Rand Dryer?
- S
  Steven CarrollAug 21, 2025
  An excessive pressure drop in your Ingersoll-Rand Dryer can be caused by an excessive flow rate. In this case, check the flow rate and determine the cause for the increased air demand. Also, check the pressure source, because the inlet pressure may be below the design condition.
D
Derek AguirreAug 25, 2025
How to fix Heater High Temp. Alarm (Heater runs continuously) in Ingersoll-Rand EH 3000 Dryer?
- H
  harriskimberlyAug 26, 2025
  If your Ingersoll-Rand Dryer's heater is running continuously and triggering a high-temperature alarm, the contactor might be stuck closed, in which case you should replace it. Other potential causes include a defective thermocouple or temperature control, which would also require replacement.
M
michaelconradAug 28, 2025
What to do if Ingersoll-Rand Dryer fails to pressurize?
- B
  brownwendyAug 28, 2025
  If your Ingersoll-Rand Dryer fails to pressurize, you should check the purge valve and its no-loss drain valve. Also, ensure that the repressurization circuit is sending a control signal.
B
Brian DelgadoSep 1, 2025
What to do if Ingersoll-Rand EH 3000 fails to depressurize?
- A
  Alyssa LopezSep 1, 2025
  If your Ingersoll-Rand Dryer fails to depressurize, it could be due to the purge valve not opening or being stuck in the closed position. Check the no-loss drain valve, and repair or replace it if necessary.
A
alexcareySep 5, 2025
Why is there excessive back pressure in regenerating tower in my Ingersoll-Rand Dryer?
- L
  lori59Sep 5, 2025
  Excessive back pressure in the regenerating tower (above 5 PSIG) in your Ingersoll-Rand Dryer can be caused by air leaking across the valve. Check the inlet valve and verify that it is closed to the purging tower (0 PSIG tower).
H
Haley OlsenSep 9, 2025
What causes excessively high pressure at the purge gage in Ingersoll-Rand EH 3000 Dryer?
- C
  Charles DillonSep 9, 2025
  If the pressure at the purge gauge is excessively high in your Ingersoll-Rand Dryer, it may be due to improper calibration. Check the gauge against tower gauges when in switching sequence, and replace the gauge as required.

Ingersoll-Rand EH 3000 Specifications

General

Brand	Ingersoll-Rand
Model	EH 3000
Category	Dryer
Language	English

Summary

Safety and Operation Precautions

Principles of Operation

Drying Cycle Process

Describes how wet air passes through desiccant for moisture adsorption.

Regeneration Cycle Process

Explains desiccant moisture removal via desorption and venting.

Setting Regeneration Air Flow

Heated Purge Regeneration Procedure

Heatless Regeneration Process

Microprocessor Control Interface

Status Panel Interface

Displayable Parameters

Timing Sequence

Explains how the microprocessor controller manages timing functions for tower switching.

Alarms and Indicators

Heater High Temperature Alarm

Monitors heater housing temp; halts program if alarm set point is exceeded.

Heater Failure Alarm

Triggers if heater fails to reach 150°F within 10 minutes of heating cycle.

Failure to Shift Alarm

Monitors dryer sequencing via pressure switches for proper operation.

High Dew Point Alarm (EMS)

Warns if dryer fails to supply air at designed pressure dew point.

High Outlet Temperature Alarm

Technician Mode Operations

Entering Technician Mode

Procedure for qualified personnel to enter technician mode for parameter adjustments.

Changing Operating Mode

Instructions to switch dryer between heated purge and heatless modes.

Heater Temperature Setpoint

Allows adjustment of regeneration temperature in heated purge mode.

Energy Management System (EMS)

Overview of EMS feature that uses dew point sensor for energy savings.

Purge Temperature Control

High Dew Point Alarm Configuration

Shutdown Sequence

Procedure for properly shutting down the dryer to preserve performance.

Installation and Initial Start-Up

Equipment Application Guidelines

Ensures dryer design and installation meet performance requirements.

Location and Mounting

Piping Connections

Filtration Requirements

Dew Point Transmitter Installation

Electrical Connection

Dryer Start-Up Procedure

Step-by-step instructions for initial dryer start-up, including pressurization and checks.

Shutdown Procedures

Procedures to properly shut down the dryer to avoid damage and preserve performance.

Maintenance and System Check

Scheduled Maintenance Tasks

Pre-filters and Post-filters

Desiccant Changeout Procedure

Troubleshooting Guide

Replacement Parts List

Engineering Specifications

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