Ingersoll-Rand HRD Series Operator's Instruction Manual
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Ingersoll-Rand HRD Series Operator's Instruction Manual

Ingersoll-Rand HRD Series Operator's Instruction Manual

Heatless compressed air dryers
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HRD SERIES
HEATLESS COMPRESSED AIR DRYERS
OPERATOR'S
INSTRUCTION MANUAL
Before installation or starting the dryer for the
first time, study this manual carefully to obtain
a clear knowledge of the unit and of the duties
to be performed while operating and maintain-
ing the unit.
RETAIN THIS MANUAL WITH UNIT.
This technical manual contains IMPORTANT
SAFETY DATA and should be kept with the
dryer at all times.
Bulletin 341 Revision F 7/97

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Summary of Contents for Ingersoll-Rand HRD Series

  • Page 1 HRD SERIES HEATLESS COMPRESSED AIR DRYERS OPERATOR’S INSTRUCTION MANUAL Before installation or starting the dryer for the first time, study this manual carefully to obtain a clear knowledge of the unit and of the duties to be performed while operating and maintain- ing the unit.

  • Page 2: Table Of Contents

    Table Of Contents INTRODUCTION ......1 SAFETY ....... . . 1 INSTALLATION .

  • Page 3: Introduction

    DANGER—Immediate hazard which will result in se- this manual. Throughout the manual, the word dryer is vere injury or death. used to refer to HRD Series heatless air dryers. WARNING—Hazard or unsafe practice which could re- sult in severe injury or death.

  • Page 4: Handling

    Back pressure reduces the capacity of the dryer. Consult the factory for pip- Figure 1 ing details if required. RECOMMENDED PIPING LAYOUT HRD Series Heatless Dryer (Bulletin 341)

  • Page 5: Desiccant

    HRD50 flow and pressure are factory set. HRD55 HRD60 1025 HRD65 1200 HRD70 1366 HRD75 1567 1045 HRD80 1828 1219 HRD85 2495 1663 HRD90 3205 2150 HRD95 4075 2717 1132 HRD100 5126 3425 1425 HRD Series Heatless Dryer (Bulletin 341)

  • Page 6: Mufflers

    Power ON Light form distribution of the desiccant. The power ON light on the control panel indicates when the dryer is turned on and operating. 6. Replace the plugs in the fill port connections. HRD Series Heatless Dryer (Bulletin 341)

  • Page 7: Vessel Pressure Gauges

    This point on the vertical axis is ap- How It Works proximately the purge airflow. HRD Series heatless dryers provide a continuous supply of dry compressed air by automatically cycling the flow of air through two desiccant beds. While one bed is ad-...

  • Page 8: Start-Up

    –20°F and –60°F. For ap- plications requiring dew points outside this range con- Once the HRD Series heatless dryer has been installed tact your local distributor. according to instructions, it is ready to be operated. The dryer is fully automatic and does not require any auxil- iary controls.

  • Page 9: Dew Point Verification

    Based on 100°F inlet air temperature and –40°F pressure dew point. Maximum recommended inlet temperature, 120°F. For capacity at inlet temperature higher than 100°F, consult your local distributor. Based on –40°F PDP, 100 psig inlet air pressure and average inlet airflow. HRD Series Heatless Dryer (Bulletin 341)

  • Page 10: Maintenance

    Desiccant dusting and tagged in accordance with OSHA requirements. causes valves to wear and malfunction and fil- ters to plug up rapidly. HRD Series Heatless Dryer (Bulletin 341)

  • Page 11: Maintenance Schedule

    If the dryer or a component of the dryer must be returned to the manufacturer, first call your local distributor for a return authoriza- tion number and a shipping address. Your distributor will inform you whether the dryer or only the component must be returned. HRD Series Heatless Dryer (Bulletin 341)

  • Page 12: Desiccant Replacement

    Desiccant Replacement DANGER SHOCK HAZARD Standard –40°F pressure dew point HRD Series heatless Portions of the electrical control circuit re- dryers use activated alumina desiccant. HRD Series main energized when the power switch is heatless dryers designed to achieve a –100°F dew point turned OFF.

  • Page 13: High-Humidity Alarm Field Adjustment

    The high-humidity alarm is now set. To put the dryer back into service, follow the start-up instructions on page 6. Figure 4 HIGH-HUMIDITY ALARM CIRCUIT BOARD Figure 5 POTENTIOMETERS P1, P2 AND P3 SET PLUG HRD Series Heatless Dryer (Bulletin 341)

  • Page 14: Field Service Guide

    Adjust purge air regulator to above 60 psig. letdown valves. 1. Check power with voltmeter. Dryer cuts off auto- Power failure. 2. Check dryer fuse in the electrical enclosure. Replace as neces- matically sary. HRD Series Heatless Dryer (Bulletin 341)
  • Page 15 HRD Series Heatless Dryer (Bulletin 341)

  • Page 16: Replacement Parts

    7DE347CV 7DE347AC Fuse 7DE110AJ 7DE110AJ 7DE110AJ 7DE110AJ 7DE110AJ 7DE110AJ 7DE110AJ Switch, On-Off 7DE240JN 7DE240JN 7DE240JN 7DE240JN 7DE240JN 7DE240JN 7DE240JN Desiccant 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F Lbs. desiccant per tower Recommended spare parts HRD Series Heatless Dryer (Bulletin 341)
  • Page 17 Delay Timer (F Option) 7DE270AS 7DE270AS 7DE270AS 7DE270AS 7DE270AS 7DE270AS 7DE270AS Desiccant 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F Lbs. desiccant per tower 1,025 1,200 Recommended spare parts Quantity required, four per muffler, eight per dryer HRD Series Heatless Dryer (Bulletin 341)
  • Page 18 7DE270AS 7DE270AS 7DE270AS 7DE270AS Desiccant 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F 55DE116F Lbs. desiccant per tower 1,366 1,567 1,828 2,495 3,205 4,075 5,126 Recommended spare parts Quantity required, four per muffler, eight per dryer HRD Series Heatless Dryer (Bulletin 341)

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