Sullair SD-820 Series User Manual
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Sullair SD-820 Series User Manual

Sd heatless desiccant compressed air dryer with dewpoint dependent switching
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SD Heatless Desiccant Compressed Air Dryer
User Manual
For Model Series SD-820 to -1710
With Dewpoint Dependent Switching
This dryer includes equipment
options as selected (X) below:
DDS OPTION
EDP OPTION
3V OPTION
This Manual is part number 02250159-760
Applicable for dryers serial number 13982 and up
Revision 04, October 2005

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Summary of Contents for Sullair SD-820 Series

  • Page 1 SD Heatless Desiccant Compressed Air Dryer User Manual For Model Series SD-820 to -1710 With Dewpoint Dependent Switching This dryer includes equipment options as selected (X) below: DDS OPTION EDP OPTION 3V OPTION This Manual is part number 02250159-760 Applicable for dryers serial number 13982 and up Revision 04, October 2005...
  • Page 3 Rev 04 – October 2005 FOREWORD Reading this user manual will fully familiarize you with the Sullair adsorption dryer. You will be better able to run this equipment in accordance with its intended use. This manual contains important information for safe, proper and economic dryer installation, start-up, operation and maintenance.
  • Page 4 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005...

  • Page 5: Table Of Contents

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 TABLE OF CONTENTS 1. INTRODUCTION ............................1 1.1 G ..............................1 ENERAL 1.2 P ..........................1 RODUCT NFORMATION 1.2.1 Pressure Vessel Regulations ........................2 1.2.2 Leak Test............................... 2 1.3 S ..........................
  • Page 6 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 APPENDIX A – DRYER OPERATING SEQUENCE..................A-1 APPENDIX B – DRYER FLOW CAPACITY....................B-1...

  • Page 7: Introduction

    Sullair accepts no liability for corrosion damage or malfunctions caused by aggressive media. Applications other than those mentioned in this manual must be agreed to by Sullair and confirmed in writing. This dryer additionally requires the installation of Sullair pre- and afterfilters (refer to paragraph 1.8) which are shipped separately.

  • Page 8: Pressure Vessel Regulations

    Design Temperature Min: -20 °F (-29 °C) 1.2.2 L Each Sullair adsorption dryer is subjected to, and must pass, a leak test prior to shipment. 1.3 SAFETY INSTRUCTIONS This manual contains basic tips which must be followed during set-up, operation and servicing.

  • Page 9: General Safety Tips For Assembly, Inspection And Maintenance

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 1.3.2 G ENERAL AFETY IPS FOR SSEMBLY NSPECTION AND AINTENANCE The purchaser is to ensure that all assembly, maintenance and inspection work is carried out by personnel qualified to do it. The personnel involved in assembly, operation, maintenance and inspection must have the corresponding qualifications to do this work.

  • Page 10: Technical Data Sheet

    NOTE: EDP Option indicates a dryer which has been specifically set up at the factory to obtain a pressure dewpoint of -100 F. Paragraph 1.2 identifies the options provided with this dryer. This option requires reduction of the rated flow. Contact Sullair for details.

  • Page 11: Overloading

    In order to prevent breakdown in downstream consumers caused by material that has been abraded from the desiccant bed, a Sullair SCR 1-micron particulate afterfilter must be mounted downstream of the adsorption dryer. Since no condensate accumulates in...
  • Page 12 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 1.8 USE OF A PREFILTER AND AFTERFILTER (CONTINUED) Both filters should be equipped with an incident monitor (i.e., differential pressure indicator) to advise of premature blockage of the filter elements. Elements must be changed annually regardless of the reading on the indicator.

  • Page 13: Installation

    Ensure that the Sullair dryer is carried only by its skid base frame. It must be positioned so that the side from which it is to be operated is easily accessible. The piping is to be connected at a slightly downward slope toward the prefilter.

  • Page 14: Purge Exhaust

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 2.4 PURGE EXHAUST The purge exhaust may be piped to an open vent. Noise levels at the dryer may be reduced by extending the purge exhaust piping to a remote location. Refer to the purge piping selection chart below to prevent excessive backpressure which may adversely affect dryer performance.

  • Page 15: Equipment Operation

    3. EQUIPMENT OPERATION 3.1 GENERAL OPERATING PRINCIPLES This Sullair dryer has two parallel adsorption chambers filled with desiccant. While the medium is being dried flowing bottom-up in one chamber, regeneration takes place from the top down in the other chamber. The changeover from one chamber to the other is controlled by the Dewpoint Dependent Switching system that monitors desiccant performance by measuring the outlet air dew point.

  • Page 16: Operator Controls

    Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 When sized correctly, the Sullair type SD air dryer with DDS is designed to provide a specific pressure dewpoint performance (generally -40°F (-40°C)) at worst-case operating conditions (maximum flow at lowest pressure and highest inlet temperature).
  • Page 17 LED lit. FIGURE 2 – STATUS DISPLAY There are two Sullair filter assemblies also required for proper dryer operation. The prefilter housing has an incident monitor (also known as differential pressure indicator) and an automatic drain.

  • Page 18: Initial Start-Up

     The ambient temperature must not be less than 33°F. NOTE: Failure resulting from faulty installation or start-up does not fall under the Sullair warranty obligation. Start-up by factory trained personnel is highly recommended. Perform the following tasks in sequence for the initial start-up: ...

  • Page 19: Short-Term Shut-Down

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005  Perform a soap bubble test to check for leaks on all parts of the sample line, connections and the humidity sample cell.  The digital display will read the dew point of the dryer system. It will take a period of time for a humidity probe to be purged of humidity and read the correct dew point.

  • Page 20: Alarms

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 NOTE: If the dryer is restarted after a long standstill, proceed as for an initial start-up (see paragraph 3.3). 3.7 ALARMS 3.7.1 H YGROMETER AILURE LARM If the hygrometer probe fails, then a fault will be triggered by the hygrometer. The DEW POINT display on the operator control panel will read 999.

  • Page 21: Maintenance

    NOTE: Should the need for spare parts or service arise during work on the adsorption dryer, then the dryer model and serial number must be conveyed to Sullair. This information is given on the nameplate mounted on the control cabinet.

  • Page 22: Whichever Is First: After Each 2,500 Operating Hours Or Annually

     Check the seat O-rings on the outlet check valves.  Contact Sullair to recalibrate the dewpoint sensor humidity probe. NOTE: In order to ensure continuous and trouble-free operation, a maintenance agreement with your authorized Sullair distributor is recommended.

  • Page 23: Replacement Of The Desiccant

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 4.3 REPLACEMENT OF THE DESICCANT Desiccant life is determined by the care with which it is handled, the quality of filtered inlet air provided and by its time in use. Be careful to not abrade (i.e., wear down) the desiccant when installing it.

  • Page 24: Changing The Purge Regeneration Orifice

     Remove regeneration orifice and re-install new orifice as required  Verify that all pipe connections are properly secured. NOTE: Consult Sullair for recommendations and/or replacement of the purge regeneration orifice. Modification of the regeneration orifice can lead to performance deterioration of the dryer.

  • Page 25: Spare Parts List

    Part # Part # Consumables Refer to filter Refer to filter Prefilter ( Element Only ) Nameplate or Nameplate or Afterfilter ( Element Only ) Consult Sullair Consult Sullair Moisture Indicator 02250130-254 02250130-254 Activated Alumina – Pounds 02250140-346 02250140-346 (50-lb bag)

  • Page 26: Sd-1200 To Sd-1710

    Part # Consumables Refer to Filter Refer to Filter Refer to Filter Prefilter (Element Only) Nameplate or Nameplate or Nameplate or Afterfilter (Element Only) Consult Sullair Consult Sullair Consult Sullair Moisture Indicator 02250130-254 02250130-254 02250130-254 Activated Alumina – 02250140-346 1400...

  • Page 27: Faults And Troubleshooting

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 6. FAULTS AND TROUBLESHOOTING 6.1 DEW POINT TOO HIGH POSSIBLE CAUSE SOLUTION Operating pressure too low, air flow Increase operating pressure, reduce air flow volume too high capacity Reduce temperature or install an air cooler Air inlet temperature too high...

  • Page 28: Back Pressure Too High During Regeneration

    Attention! If you are not able to repair a fault, call your local Sullair distributor or the Sullair Service Department to arrange for service. A service technician will help you with the problem or, if necessary, will be sent...

  • Page 29: Drawings

    USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 7. DRAWINGS...
  • Page 30 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005...
  • Page 31 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 APPENDIX A – DRYER OPERATING SEQUENCE This dryer uses a printed circuit board (PCB) as its standard controller. In the event of a power failure, the inlet valves will open and the dryer will pressurize both chambers. Since this control panel uses retentive programming, the dryer will return to the step in the cycle where dryer was before power was removed.
  • Page 32 4 minutes and 30 seconds. The half-cycle time will remain at 5 minutes and full cycle at 10 minutes. The regeneration and repressurization times shall be adjusted by Sullair trained personnel only. Changing the factory settings will result in loss of dew point and/or failure to repressurize before changeover.
  • Page 33 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005 APPENDIX B – DRYER FLOW CAPACITY 1. DRYER FLOW CAPACITY The specific size/model of your dryer was selected to meet performance requirements based on an analysis of air supply and demand capacities. The model selection chart provided following should confirm that this dryer remains suitable for its intended use.
  • Page 34 USER MANUAL Models SD-820 to SD-1710 with DDS Rev 04 – October 2005...
  • Page 36 Fax(33) 4-77-96-84-99 Fax: 755-685-3473 SULLAIR CORPORATION Subsidiary of Sundstrand Corporation 3700 East Michigan Boulevard, Michigan City, Indiana 46360 – U.S.A Toll Free (USA only): 1-800-SULLAIR Outside the USA: 1-(219)-879-5451 Fax: 1 (219)-874-1273 Fax Parts: (219) 874-1835 Fax Service: (219) 874-1805...

This manual is also suitable for:

Sd-1050 seriesSd-1200 seriesSd-1450 seriesSd-1710 series

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