Ingersoll-Rand EH 4000 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:

M
michael17Aug 13, 2025
Why does my Ingersoll-Rand Dryer have an elevated dew point?
- T
  terrigarzaAug 13, 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).
C
carolyn86Aug 16, 2025
What to do if Ingersoll-Rand EH 4000 Dryer fails to shift?
- J
  jeremywalkerAug 16, 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.
P
Pamela DunnAug 20, 2025
Why is there excessive pressure drop in my Ingersoll-Rand EH 4000?
- S
  stacey87Aug 20, 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.
N
Nicholas JacksonAug 25, 2025
How to fix Heater High Temp. Alarm (Heater runs continuously) in Ingersoll-Rand EH 4000 Dryer?
- P
  Patrick KellerAug 25, 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.
T
Tara ParkerAug 27, 2025
What to do if Ingersoll-Rand EH 4000 Dryer fails to pressurize?
- R
  rhensleyAug 27, 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.
Y
yfowlerAug 31, 2025
What to do if Ingersoll-Rand EH 4000 fails to depressurize?
- R
  rachellyonsAug 31, 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.
D
Daniel GraySep 4, 2025
Why is there excessive back pressure in regenerating tower in my Ingersoll-Rand Dryer?
- J
  Justin WillisSep 4, 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).
D
Derrick MorrowSep 8, 2025
What causes excessively high pressure at the purge gage in Ingersoll-Rand Dryer?
- H
  hannahallenSep 8, 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 4000 Specifications

General

Brand	Ingersoll-Rand
Model	EH 4000
Category	Dryer
Language	English

Summary

6.0 SAFETY AND OPERATION PRECAUTIONS

General Safety and Operation Precautions

Essential safety rules for operating and maintaining the dryer.

7.0 PRINCIPLES OF OPERATION

7.1 INTRODUCTION

7.6.2 STATUS PANEL USER INTERFACE

7.6.3 MICROPROCESSOR CONTROL DISPLAY PARAMETERS

7.2 DRYING CYCLE

7.7 TIMING SEQUENCE

7.3 REGENERATION CYCLE

7.8 RESTART MODES

7.6 CONTROLS

7.6.1 MICROPROCESSOR CONTROL USER INTERFACE

8.0 ALARMS AND INDICATORS

8.2 HEATER HIGH TEMPERATURE ALARM

Alarm for high heater temperature and its safety interlock.

8.7 HIGH OUTLET TEMPERATURE

Alarm for high dryer discharge air temperature.

8.3 HEATER FAILURE ALARM

Alarm indicating heater failure.

8.8 ALARM LIST

Accessing and reviewing the 20 most recent alarm conditions.

8.4 FAILURE TO SHIFT ALARMS

Alarms indicating failure in dryer sequencing.

8.5 HIGH DEW POINT ALARM

Alarm for exceeding the specified dew point.

9.0 TECHNICIAN MODE

9.1 ENTERING TECHNICIAN MODE

Procedure for qualified personnel to enter technician mode.

9.4 ENERGY MANAGEMENT SYSTEM (OPTIONAL)

Overview of the EMS feature and its operation.

9.4.2 SETPOINT ADJUSTMENT

9.7 EXTENDED HEATING (OPTIONAL)

9.9 PROGRAM JOG

9.2 OPERATING MODE (BI-MODE)

Changing the dryer operation mode (heated/heatless).

9.4.1 ENABLING / DISABLING ENERGY MANAGEMENT SYSTEM

9.5 PURGE TEMPERATURE (OPTIONAL)

9.8 HIGH DEW POINT ALARM (OPTIONAL)

9.10 SHUTDOWN SEQUENCE

Procedure for proper dryer shutdown.

9.3 HEATER TEMPERATURE SETPOINT

Adjusting the regeneration heater temperature.

9.6 RESTART MODE

9.8.1 DESCRIPTION AND ACTIVATION

9.8.2 SETPOINT ADJUSTMENT

10.0 INSTALLATION AND INITIAL START-UP

10.1 EQUIPMENT APPLICATION GUIDELINES

10.5 DEW POINT TRANSMITTER INSTALLATION

10.6 ELECTRICAL CONNECTION

10.2 LOCATING AND MOUNTING

10.7 START-UP

Initial startup procedure for the dryer.

10.3 PIPING

10.8 SHUT DOWN PROCEDURES

Procedures for safely shutting down the dryer.

10.4 FILTRATION

11.0 MAINTENANCE AND SYSTEM CHECK

11.1 SCHEDULED MAINTENANCE

Routine maintenance tasks based on frequency.

11.2.1 THREADED FILTERS

11.2 PRE-FILTERS AND POST-FILTERS

11.2.2 FLANGED FILTERS

11.6 DESICCANT CHANGEOUT PROCEDURE

12.0 TROUBLESHOOTING

Elevated Dew Point

Causes and corrective actions for elevated dew point.

Excessive Pressure Drop

Causes and corrective actions for excessive pressure drop.

Excessive Back Pressure

Causes and corrective actions for excessive back pressure.

Failure to Shift Alarms

Causes and corrective actions for switching and pressurization failures.

14.0 WIRING DIAGRAM

15.0 FLOW DIAGRAM

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