Ingersoll-Rand EH 2100 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:

K
Kevin DelacruzAug 13, 2025
Why does my Ingersoll-Rand EH 2100 have an elevated dew point?
- T
  Tammy WebbAug 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
Sergio ElliottAug 17, 2025
What to do if Ingersoll-Rand EH 2100 Dryer fails to shift?
- L
  Luke AndersonAug 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.
M
Mr. Richard GreenAug 21, 2025
Why is there excessive pressure drop in my Ingersoll-Rand EH 2100?
- R
  Robert Diaz MDAug 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.
R
Rebecca SmithAug 25, 2025
How to fix Heater High Temp. Alarm (Heater runs continuously) in Ingersoll-Rand Dryer?
- B
  Brenda JonesAug 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.
J
jilltaylorAug 28, 2025
What to do if Ingersoll-Rand EH 2100 Dryer fails to pressurize?
- J
  John CantuAug 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.
A
Ashley KramerSep 1, 2025
What to do if Ingersoll-Rand EH 2100 fails to depressurize?
- B
  Brandon LamSep 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.
D
David WhiteSep 5, 2025
Why is there excessive back pressure in regenerating tower in my Ingersoll-Rand EH 2100 Dryer?
- S
  stephanie16Sep 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).
P
portermatthewSep 8, 2025
What causes excessively high pressure at the purge gage in Ingersoll-Rand Dryer?
- L
  Leah SchneiderSep 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 2100 Specifications

General

Brand	Ingersoll-Rand
Model	EH 2100
Category	Dryer
Language	English

Summary

6.0 SAFETY AND OPERATION PRECAUTIONS

7.0 PRINCIPLES OF OPERATION

7.6 CONTROLS

7.6.1 MICROPROCESSOR CONTROL USER INTERFACE

Details the keypad functions and display prompts for control.

7.6.2 STATUS PANEL USER INTERFACE

7.6.3 MICROPROCESSOR CONTROL DISPLAY PARAMETERS

8.0 ALARMS AND INDICATORS

8.2 HEATER HIGH TEMPERATURE ALARM WITH INTERLOCK (STANDARD)

Explains the alarm for high heater temperature and its safety interlock.

8.3 HEATER FAILURE ALARM (STANDARD)

Details the alarm triggered if the heater fails to generate heat.

8.4 FAILURE TO SHIFT ALARM (STANDARD)

Alarm indicating issues with the dryer's tower switching sequence.

8.4.1 FAILURE TO REPRESSURIZE

Specific failure to shift alarm for repressurization issues.

8.4.2 FAILURE TO DEPRESSURIZE

Specific failure to shift alarm for depressurization issues.

8.5 HIGH DEW POINT ALARM (INCLUDED WITH EMS)

Alarm for high dew point when the EMS feature is equipped.

8.6 ENERGY MANAGEMENT SYSTEM (EMS) (OPTIONAL)

Describes the EMS feature for energy savings and moisture loading.

8.7 HIGH OUTLET TEMPERATURE (OPTIONAL)

8.8 ALARM LIST

9.0 TECHNICIAN MODE

9.1 ENTERING TECHNICIAN MODE

Instructions for qualified personnel to access technician settings.

9.2 OPERATING MODE (BI-MODE)

9.3 HEATER TEMPERATURE SETPOINT (HEATED PURGE MODE ONLY)

Adjusting the regeneration temperature in heated purge mode.

9.4 ENERGY MANAGEMENT SYSTEM (OPTIONAL)

9.4.1 ENABLING / DISABLING ENERGY MANAGEMENT SYSTEM

9.4.2 SETPOINT ADJUSTMENT

9.5 PURGE TEMPERATURE (OPTIONAL, HEATED PURGE MODE)

9.8 HIGH DEW POINT ALARM (OPTIONAL)

9.8.1 DESCRIPTION AND ACTIVATION

9.8.2 SETPOINT ADJUSTMENT

9.10 SHUTDOWN SEQUENCE

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

10.7 START-UP

10.8 SHUT DOWN PROCEDURES

11.0 MAINTENANCE AND SYSTEM CHECK

11.1 SCHEDULED MAINTENANCE

11.2 PRE-FILTERS AND POST-FILTERS

11.6 DESICCANT CHANGEOUT PROCEDURE

12.0 TROUBLESHOOTING

16.0 REPLACEMENT PARTS

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