Ingersoll-Rand HL160 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:

A
Amy CareyAug 14, 2025
What to do if Ingersoll-Rand Dryer has elevated dew point?
- T
  Terri CarrilloAug 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.
C
Charles ReynoldsAug 17, 2025
Why Ingersoll-Rand Dryer fails to shift?
- R
  Rita GouldAug 18, 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.
E
Emily AnthonyAug 21, 2025
What to do if Ingersoll-Rand Dryer has excessive pressure drop?
- C
  Casey ValenzuelaAug 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.
W
William TaylorAug 25, 2025
What to do if my Ingersoll-Rand Dryer fails to pressurize?
- S
  simpsonstacyAug 26, 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.
M
Melissa HenryAug 28, 2025
What to do if Ingersoll-Rand Dryer depressurizes too rapidly?
- T
  Teresa TateAug 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
Andrew JohnsonAug 31, 2025
What to do if the Blue Moisture Indicator (BMI) indicates high moisture level in Ingersoll-Rand Dryer?
- K
  Karen SanchezAug 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.
B
Brian AndersonSep 3, 2025
How to fix Ingersoll-Rand Dryer that fails to purge?
- R
  Robert PetersenSep 4, 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.
J
John HartSep 7, 2025
What causes excessive back pressure in regenerating tower of Ingersoll-Rand Dryer?
- T
  Taylor GomezSep 7, 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).
C
Cheryl ParkerSep 10, 2025
What causes excessively high pressure at the purge gauge on the right tower of Ingersoll-Rand Dryer?
- K
  Kimberly GreenSep 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 HL160 Specifications

General

Inlet Temperature Range	120 °F
Capacity	160 scfm
Inlet Temperature	120°F
Outlet Dew Point	50 °F (3.3 - 10 °C)
Power Supply	115/1/60, 460/3/60

Summary

OPERATORS MANUAL

6.0 SAFETY AND OPERATION PRECAUTIONS

7.0 PRINCIPLES OF OPERATION

7.8 CONTROLS

Covers the microprocessor controller and its interface.

7.8.1 BASIC USER INTERFACE

Overview of the control panel and keypad.

7.8.3 ALARMS AND THEIR FUNCTIONS

Explains various alarms and their causes.

Fail to Shift Alarm (OPTIONAL) - (FAIL TO SHIFT)

Alarm for switching valve failure.

High Dew Point Alarm (OPTIONAL) - (HIGH DEW POINT)

Alarm for high outlet dew point.

8.0 ALARMS AND INDICATORS

8.2 FAILURE TO SHIFT ALARM (OPTIONAL)

Alarm for switching valve failure.

8.3 ENERGY MANAGEMENT SYSTEM (EMS) - (OPTIONAL)

EMS for optimizing purge air usage.

8.4 HIGH DEW POINT ALARM (INCLUDED WITH EMS)

Alarm for failing to meet dew point specification.

9.0 INSTALLATION AND INITIAL START-UP

9.4 FILTRATION

Importance of pre-filters and post-filters for dryer life.

9.6 ELECTRICAL CONNECTION

Procedures for safe and correct electrical hookup.

9.8 START-UP

Step-by-step guide for initial dryer operation.

9.9 SHUT-DOWN SEQUENCE

Proper procedure to power down the dryer.

10.0 TECHNICIAN MODE

10.1 ENTERING TECHNICIAN MODE

Accessing advanced settings via specific keystrokes.

10.2 DEW POINT ADJUSTER (-40 °F DRYERS ONLY)

Setting desired pressure dew points for -40°F dryers.

10.3 ENERGY MANAGEMENT SYSTEM (EMS) OPTIONAL

Description and activation of the EMS feature.

10.3.1 DESCRIPTION AND ACTIVATION

10.3.2 SETPOINT ADJUSTMENT

10.7 HIGH DEW POINT ALARM (INCLUDED WITH EMS OPTION)

Alarm for failure to supply designed dew point.

10.7.1 DESCRIPTION AND ACTIVATION

10.7.2 SETPOINT ADJUSTMENT

11.0 MAINTENANCE AND SYSTEM CHECK

11.1 SCHEDULED MAINTENANCE

11.2 PRE-FILTERS AND POST-FILTERS

11.8 DESICCANT CHANGEOUT PROCEDURE

12.0 TROUBLESHOOTING

15.0 WIRING DIAGRAM

16.0 FLOW DIAGRAM

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