Ingersoll-Rand EH 600 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:

V
Victoria EdwardsAug 12, 2025
Why does my Ingersoll-Rand Dryer have an elevated dew point?
- J
  James BallAug 12, 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).
L
Lisa ThompsonAug 15, 2025
What to do if Ingersoll-Rand EH 600 fails to shift?
- T
  Teresa FranklinAug 15, 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.
A
Allen TaylorAug 19, 2025
Why is there excessive pressure drop in my Ingersoll-Rand EH 600 Dryer?
- A
  Aaron GillAug 19, 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.
T
timothyramirezAug 23, 2025
How to fix Heater High Temp. Alarm (Heater runs continuously) in Ingersoll-Rand EH 600 Dryer?
- M
  Melvin JohnsAug 23, 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
Mary ColemanAug 27, 2025
What to do if Ingersoll-Rand EH 600 fails to pressurize?
- A
  Ashley McdonaldAug 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.
G
griffinsheriAug 31, 2025
What to do if Ingersoll-Rand EH 600 fails to depressurize?
- K
  Kenneth MurrayAug 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.
M
melissa55Sep 3, 2025
Why is there excessive back pressure in regenerating tower in my Ingersoll-Rand Dryer?
- X
  xsimmonsSep 3, 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).
C
Caitlin ColonSep 7, 2025
What causes excessively high pressure at the purge gage in Ingersoll-Rand Dryer?
- H
  Holly ReidSep 7, 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 600 Specifications

General

Brand	Ingersoll-Rand
Model	EH 600
Category	Dryer
Language	English

Summary

6.0 Safety and Operation Precautions

7.0 Principles of Operation

7.6 Controls

Explanation of the dryer's control systems and interfaces.

8.0 Alarms and Indicators

8.2 Heater High Temperature Alarm

8.3 Heater Failure Alarm

8.4 Failure to Shift Alarm

Alarms indicating failure in dryer sequencing functions.

8.5 High Dew Point Alarm

Alarm for exceeding the desired pressure dew point.

9.0 Technician Mode

9.1 Entering Technician Mode

Procedure for qualified personnel to enter technician mode.

9.2 Operating Mode (Bi-Mode)

9.3 Heater Temperature Setpoint

Adjusting the regeneration temperature in heated purge mode.

9.6 Restart Mode

9.8 High Dew Point Alarm (Optional)

Function and activation of the High Dew Point Alarm.

9.10 Shutdown Sequence

Proper procedure for shutting down the dryer.

10.0 Installation and Initial Start-Up

10.1 Equipment Application Guidelines

10.2 Locating and Mounting

10.3 Piping

10.4 Filtration

10.5 Dew Point Transmitter Installation (Optional)

10.6 Electrical Connection

Guidelines for proper electrical connections and grounding.

10.7 Start-Up

Procedures for initial dryer start-up.

10.8 Shut Down Procedures

Correct steps to shut down the dryer to avoid damage.

11.0 Maintenance and System Check

11.1 Scheduled Maintenance

Routine maintenance tasks scheduled daily, monthly, and quarterly.

11.2 Pre-Filters and Post-Filters

Information on pre-filter and post-filter maintenance and replacement.

11.6 Desiccant Changeout Procedure

Instructions for safely changing the desiccant material.

12.0 Troubleshooting

14.0 Wiring Diagram

15.0 Flow Diagram

16.0 Replacement Parts

17.0 Engineering Specifications

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