Ingersoll-Rand HL2700 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
Sheila HarperAug 14, 2025
What to do if Ingersoll-Rand Dryer has elevated dew point?
- S
  Shannon StevensAug 15, 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.
W
William StevensAug 18, 2025
Why Ingersoll-Rand Dryer fails to shift?
- G
  gregory14Aug 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.
K
Kayla AnthonyAug 21, 2025
What to do if Ingersoll-Rand Dryer has excessive pressure drop?
- J
  Joseph WilliamsAug 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.
J
Jessica BellAug 25, 2025
What to do if my Ingersoll-Rand Dryer fails to pressurize?
- M
  Mr. Jeffrey LewisAug 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.
C
Craig HaneyAug 28, 2025
What to do if Ingersoll-Rand Dryer depressurizes too rapidly?
- R
  robertleeAug 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.
E
enelsonAug 31, 2025
What to do if the Blue Moisture Indicator (BMI) indicates high moisture level in Ingersoll-Rand Dryer?
- W
  William MillerAug 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.
M
Mary DixonSep 4, 2025
How to fix Ingersoll-Rand Dryer that fails to purge?
- M
  mpaulSep 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.
R
robin52Sep 7, 2025
What causes excessive back pressure in regenerating tower of Ingersoll-Rand Dryer?
- C
  Christopher OrozcoSep 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).
P
Priscilla BrownSep 10, 2025
What causes excessively high pressure at the purge gauge on the right tower of Ingersoll-Rand Dryer?
- D
  Dawn BakerSep 12, 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 HL2700 Specifications

General

Maximum Inlet Temperature	120 °F
Maximum Working Pressure	150 psig
Maximum Operating Pressure	150 psig
Inlet Connection	4 in
Outlet Connection	4 in
Type	Refrigerated
Inlet Temperature	120°F
Phase	3
Airflow Capacity	2700 CFM
Capacity	2700 CFM

Summary

Receiving, Inspection, and Safety Precautions

General Safety and Operation Precautions

Lists critical safety rules to be observed for dryer operation and maintenance.

Principles of Operation

Alarms and Their Functions

Details alarms detected by the controller and their meaning.

Alarms and Indicators

Moisture Indicator Function

Describes the blue moisture indicator's function and color changes.

Failure to Shift Alarm

Details the alarm for switching failure in dryer valves.

High Dew Point Alarm Details

Describes the alarm for failure to supply air at designed pressure dew point.

Installation and Initial Start-Up

Application and Installation Checks

Ensures design and installation requirements are met for optimal dryer performance.

Locating and Mounting Instructions

Provides guidance on lifting and mounting the dryer correctly.

Piping and Pre-filter Placement

Details compressed air line connections and pre-filter placement.

Filtration Requirements

Emphasizes the importance of pre-filters and post-filters for dryer protection.

Electrical Connection Procedures

Instructions for making proper electrical connections to the dryer.

Initial Dryer Start-Up Guide

Step-by-step guide for initial dryer start-up procedures.

Dryer Shut-Down Sequence

Procedure for safely shutting down the dryer.

Technician Mode Operations

High Dew Point Alarm Configuration

Details the High Dew Point Alarm and its setpoint adjustment.

Maintenance and System Checks

Scheduled Maintenance Tasks

Lists daily, semi-annual, and annual maintenance tasks.

Two-Year and Three-to-Five-Year Maintenance

Tasks to perform every two and three to five years for dryer maintenance.

Pre-filters and Post-filters Maintenance

Check Valve and Desiccant Maintenance

Troubleshooting Guide

Troubleshooting Elevated Dew Point

Troubleshooting guide for elevated dew point issues.

Troubleshooting Moisture Indicator and Pressure Drop

Troubleshooting steps for a wet BMI and excessive pressure drop.

Troubleshooting Switching and Pressurization Failures

Troubleshooting causes for switching failures and pressurization issues.

Troubleshooting Purge and Back Pressure Issues

Troubleshooting causes for rapid depressurization, purge failure, and back pressure.

Wiring Diagram

Wiring Diagram for HL90-HL5000

Flow Diagrams

Flow Diagram for HL90-HL2700

Flow Diagram for HL3300-HL5000

Replacement Parts Information

Replacement Parts (HL90-HL250 Models)

Replacement Parts (HL300-HL800 Models)

Replacement Parts (HL1000-HL2100 Models)

Replacement Parts (HL2700-HL5000 Models)

Engineering Specifications

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