Ingersoll-Rand HL1500 User Manual

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HL SERIES DESICCANT DRYER

MODELS 90-5000

OPERATORS MANUAL

C.C.N. : 80442833 en

DATE : APRIL 2010

REV. : D

Ensure that the operator reads and understands the decals

and consults the manuals before maintenance or operation.

Ensure that the Operation and Maintenance manual is not

removed permanently from the machine.

Ensure that maintenance personnel are adequately trained,

competent and have read the Maintenance Manuals.



PRINT LANGUAGE

ENGLISH

FRENCH

PORTUGUESES

SPANISH

Table of Contents

Questions and Answers:

S
Scott GonzalezAug 14, 2025
What to do if Ingersoll-Rand Dryer has elevated dew point?
- G
  Garrett CookeAug 14, 2025
  If your Ingersoll-Rand Dryer has an elevated dew point, several factors could be the cause. First, check the purge flow settings to ensure they are sufficient. Also, inspect the purge piping for any obstructions and clean the purge piping and muffler. Verify that the inlet air pressure meets the design conditions and check the system for leaks. Ensure the flow rate is within the design specifications and address any increased demand. If the inlet temperature exceeds the design condition (120°F), inspect and service the aftercooler. Also, check the air/moisture separator and pre-filter for entrained water and replace the dryer desiccant if needed. Finally, if the desiccant is contaminated by oil, install a suitable pre-filter and replace the dryer desiccant.
P
Patrick GonzalesAug 17, 2025
Why Ingersoll-Rand Dryer fails to shift?
- A
  Ashley MaloneAug 17, 2025
  If your Ingersoll-Rand Dryer fails to shift, it could be due to several reasons. First, check the power input to ensure there is power. Next, inspect the no-loss drain valve for any defects. Also, check the pilot air line and ensure that the control air line filter is clean. Finally, examine the pilot-operated diaphragm valve seals and replace them if necessary.
S
Stephanie NelsonAug 21, 2025
What to do if Ingersoll-Rand Dryer has excessive pressure drop?
- P
  Phillip ReedAug 21, 2025
  If your Ingersoll-Rand Dryer experiences an excessive pressure drop, it could be due to excessive flowrate, so check the flow rate and cause for increased air demand. It could also be caused by the inlet pressure being below the design condition, in which case you should check the pressure source.
B
Brittney KennedyAug 25, 2025
What to do if my Ingersoll-Rand Dryer fails to pressurize?
- J
  Joseph HoganAug 25, 2025
  If your Ingersoll-Rand Dryer fails to pressurize, check that the repressurization circuit is sending a control signal to the purge valve. Also, inspect the purge valve and its no-loss drain valve.
A
Alexander VazquezAug 27, 2025
What to do if Ingersoll-Rand Dryer depressurizes too rapidly?
- D
  Dylan WileyAug 28, 2025
  If your Ingersoll-Rand Dryer depressurizes too rapidly, it may be because the purge valve does not close, causing the dryer to repressurize through the inlet valve. Check the purge valve and its no-loss drain valve.
A
Amanda BowersAug 31, 2025
What to do if the Blue Moisture Indicator (BMI) indicates high moisture level in Ingersoll-Rand Dryer?
- K
  kchoiAug 31, 2025
  If the Blue Moisture Indicator (BMI) in your Ingersoll-Rand Dryer indicates a high moisture level, it could be due to an elevated dew point. Refer to the corrective actions for 'Elevated Dew Point'. Also, if the BMI is wet, it may take a week or more of continuous use for it to switch back to its blue (dry) state, depending on the degree of saturation of the desiccant.
J
Jessica ParkerSep 3, 2025
How to fix Ingersoll-Rand Dryer that fails to purge?
- H
  Henry Freeman MDSep 3, 2025
  If your Ingersoll-Rand Dryer fails to purge, it may be because the purge valve does not open or is stuck in the closed position. Check the purge valve and its no-loss drain valve, and repair or replace them if necessary. Also, check that the repressurization circuit is sending a control signal.
K
Kristina QuinnSep 6, 2025
What causes excessive back pressure in regenerating tower of Ingersoll-Rand Dryer?
- H
  Haley MyersSep 6, 2025
  Excessive back pressure in the regenerating tower of your Ingersoll-Rand Dryer (above 5 psig) could be due to a dirty purge muffler that does not pass air; replace it. It may also be caused by the purge muffler passing too much air because air is leaking across the valve; check the inlet valve and outlet check valves, and verify the inlet valve is closed to the purging tower (0 psig tower).
B
Benjamin OlsonSep 10, 2025
What causes excessively high pressure at the purge gauge on the right tower of Ingersoll-Rand Dryer?
- M
  Mrs. Misty GordonSep 10, 2025
  If there is excessively high pressure at the purge gauge on the right tower of your Ingersoll-Rand Dryer, it could be due to improper calibration. Reset it when the right tower is online.

Ingersoll-Rand HL1500 Specifications

General

Brand	Ingersoll-Rand
Model	HL1500
Category	Dryer
Language	English

Summary

Safety and Operation Precautions

Principles of Operation

Introduction

Drying Cycle

Describes the process of wet air passing through the online tower for moisture adsorption.

Regeneration Cycle

Details the process of removing moisture from desiccant in the offline tower.

Setting the Regeneration Air Flow

Controls

Covers the microprocessor controller, user interface, and keypad functions.

Microprocessor Control Display Parameters

Alarms and Their Functions

Alarms and Indicators

Failure to Shift Alarm (Optional)

Energy Management System (EMS) - (Optional)

Explains the EMS feature for minimizing purge air loss during low-load conditions.

High Dew Point Alarm (Included with EMS)

Details the alarm for failing to meet the designed pressure dew point.

Installation and Initial Start-Up

Filtration

Start-Up

Step-by-step guide for the initial start-up and testing of the dryer.

Shut-Down Sequence

Technician Mode

Entering Technician Mode

Details the keystrokes required to access the protected technician mode.

Dew Point Adjuster (-40 °F Dryers Only)

Covers adjusting the outlet dew point setting for specific dryer models.

Energy Management System (Optional)

Explains the optional EMS feature for optimizing purge air usage.

Setpoint Adjustment

Purge Flow Adjuster

Compressor Interlock

High Dew Point Alarm (Included with EMS Option)

Covers setting up and adjusting the high dew point alarm feature.

Description and Activation

Maintenance and System Check

Scheduled Maintenance

Lists daily, semi-annual, annual, and periodic maintenance activities.

Pre-filters and Post-filters

Desiccant Changeout Procedure

Troubleshooting

Wiring Diagram

Flow Diagram

Engineering Specifications

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