Stulz DESICAiR 500 Series Engineering Manual
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Stulz DESICAiR 500 Series Engineering Manual

Stulz DESICAiR 500 Series Engineering Manual

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DESICAiR
Series 500
®
Engineering Manual
Desiccant Dehumidification

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Summary of Contents for Stulz DESICAiR 500 Series

  • Page 1 DESICAiR Series 500 ® Engineering Manual Desiccant Dehumidification...
  • Page 2 No part of this document may be photocopied, reproduced, or translated into another language for use by anyone other than the owner of the equipment for which this manual is written without the prior written consent of Stulz Air Technology Systems, Inc. (STULZ).

  • Page 3: Table Of Contents

    General Theory of Operation ....... 3     Rotor Repair ..........18     Construction ..........4     8.0  STULZ PRODUCT SUPPORT ... 19  1.5.1 Design Features .......... 4         1.5.2 Cabinet ............4 Technical Support........19  ...
  • Page 4 DRY Series 500 Installation, Operation and Maintenance Manual List of Figures Appendices   Figure 1 - General Theory of Operation ....3 Appendix A, Forms Figure 2 - Locating Wall-Mounted Humidistat/Control   Sensor ............7 Installation Checklist .......... A1   Figure 3 - Control Panel ..........

  • Page 5: General Information

    These placards/stickers are intended to call attention dehumidification system covered by this manual to personal safety and equipment damage is designed and manufactured by Stulz Air hazards. Technology Systems, Inc. Recognized as a world leader, Stulz Air Technology Systems, Inc.
  • Page 6 DRY Series 500 Installation, Operation and Maintenance Manual CAUTION Air intake and discharge Never work on electrical openings must be free of obstructions. Ensure equipment unless there is someone nearby who filters are clean and access panels are on and is familiar with the operation and hazards of the properly secured.

  • Page 7: General Theory Of Operation

    DRY Series 500 Installation, Operation and Maintenance Manual 1.4 General Theory of Operation This unit is designed to dehumidify a user-defined During operation, the desiccant rotor space or process to humidity levels that are continuously rotates at a constant speed below those attainable with a refrigeration-based through the process and reactivation sections system.

  • Page 8: Construction

    Checklist” is also included with the Data that are included (see Section 1.5.4). For particular Package. This form must be completed during detail of the features, refer to the drawings installation and returned to STULZ Product provided with this unit. Support to activate your warranty. 1.5.2...

  • Page 9: Dehumidifier Identification Number (Din) Sheet

    DRY Series 500 Installation, Operation and Maintenance Manual 1.5.5 Dehumidifier Identification Number (DIN) Sheet The DIN starts with the model number. The model number includes the process cfm followed by the desiccant rotor diameter combination (ex. DRY-700-35). The first 15 digits after the model number (represented by the uppercase letters A-N below) pertain to the cabinet construction, rotor, and process and reactivation accessories or options.

  • Page 10: Installation

    Generally, all equipment ships “F.O.B. Factory”. 3) If possible, avoid locations where the air STULZ can assist in the claim filing process with intakes will be laden with dust, dirt, soot, the freight company.

  • Page 11: Utility Connections

    DRY Series 500 Installation, Operation and Maintenance Manual All ducting must be air-tight or the 1. Refer to the electrical drawing for the main dehumidification system will not perform to its power connections and see the unit maximum capability. Even small leaks can have nameplate for the minimum circuit ampacity a dramatic effect on system performance.

  • Page 12: Operation

    It should be completed during application. Airflow is indicated by rotor installation and a copy should be sent to STULZ pressure drop values as viewed on the Product Support. It will assist if service or differential pressure gauges mounted on the troubleshooting support is needed.

  • Page 13: Controller

    (optionally provided by STULZ) or a customer-supplied dry contact. Mode Status of Unit As an option, the process blower may cycle on...

  • Page 14: Control Panel Lights

    Figure 4. The unit nameplate provides Troubleshooting section of this manual. technical operating information along with the model number, serial number and specific Stulz Air Technology Systems job number. This The "light" next to the following indicator light information will be required if it is necessary to name specifies its color.

  • Page 15: Unit Features

    DRY Series 500 Installation, Operation and Maintenance Manual Set the airflows by adjusting the process and 4.0 UNIT FEATURES reactivation air dampers while the unit is still cold. The air dampers are generally located in the 4.1 Standard Features process and reactivation air inlets. 4.1.1 Control Sensor Terminals Afterward, if the differential pressure gauges show This unit is equipped with terminal positions for the...

  • Page 16: Electrical Disconnect

    If not furnished by STULZ, a disconnect switch is recommended and may be required by national electrical codes. If a disconnect switch is NOT provided, the unit will have power when the electrical connections to the main power terminal block (TB1) are made.

  • Page 17: Preventive Maintenance

    Also observe the motor while operating for record maintenance inspections. For assistance, high motor current, unusual noises or vibration, contact STULZ Product Support. overheating, worn or loose couplings and belts or loose mounting bolts. The following lists the preventive maintenance checks and services that should be performed and the recommended intervals.

  • Page 18: Troubleshooting

    If the problem can’t be resolved using the guidelines below, contact STULZ Product Support for assistance (see Section 8.0). NOTE: The High Reactivation Temperature safety could trip if the main power is disconnected from the unit while it is running.
  • Page 19 DRY Series 500 Installation, Operation and Maintenance Manual Problem: Process Blower Does Not Problem: Dehumidifier Performance Turn, Yet “Unit On” Lamp is is Reduced Illuminated This condition could indicate a problem with the dehumidifier or a change in moisture loads 1.

  • Page 20: Repair Procedures

    DRY Series 500 Installation, Operation and Maintenance Manual  Energize the unit and let the rotor make 7.0 REPAIR PROCEDURES several revolutions, carefully checking that the Under normal operating conditions and with the rotor is rotating smoothly and continuously. proper preventive maintenance, the unit should ...

  • Page 21: Cleaning

    DRY Series 500 Installation, Operation and Maintenance Manual process blower OFF for 60 minutes. Then CAUTION Do not roll the rotor on its rim resume normal unit operation. once it is outside of the cassette. This may cause damage to the rotor flutes. Allow the rotor to 9.

  • Page 22: Rotor Repair

    If damage DOES occur to the face of the rotor, refer to the Rotor Repair Section or contact After applying the silicone, take the piece of STULZ Product Support for repair assistance. cardboard, and at a 45 degree angle, drag the cardboard over the bead to press the...

  • Page 23: Stulz Product Support

    Support which not only provides technical support • Contact Name and parts but the following additional services, as • Unit Model No., Serial No. & STULZ Item No. requested:  Performance Evaluations  The customer is responsible for the shipping cost Start-up Assistance ...
  • Page 24 DRY Series 500 Installation, Operation and Maintenance Manual (April 2017)

  • Page 25: Appendix A Forms

    DRY Series 500 Installation, Operation and Maintenance Manual Appendix A Forms...
  • Page 26 DRY Series 500 Installation, Operation and Maintenance Manual...
  • Page 27 1572 Tilco Drive Frederick, Maryland USA 21704 Telephone: (301) 620-2033 DESICAiR PRODUCT DIVISION Facsimile: (301) 620-1396 Appendix A- Forms Checklist for Completed Installation Proper clearances for service access Main power wiring connections to the have been maintained around equip- equipment, including earth ground, have ment.
  • Page 28 1572 Tilco Drive Frederick, Maryland USA 21704 Telephone: (301) 620-2033 DESICAiR PRODUCT DIVISION Facsimile: (301) 620-1396 Periodic General Maintenance Checks and Services Checklist Date: Prepared By: Model Number: Serial Number: Item Number: Monthly Filters Cleanliness No Obstructions Rotor Check Condition of Rotor Face Check Condition of Seals Miscellaneous Check and Tighten Loose Fasteners...

  • Page 29: Glossary

    Full Load Amperage Pounds per Square Inch F.O.B. Freight On Board PSIG Pounds Per Square Inch Gauge Grains Per Pound Relative Humidity Horse Power SATS Stulz Air Technology Systems, Hertz (Frequency) Voltage, Alternating Current Inches of Water Column In. w.c.
  • Page 30 Notes...
  • Page 31 Notes...
  • Page 32 Our mission is to be the premier provider of ® energy efficient temperature and humidity control solutions for mission critical applications. STULZ Air Technology Systems, Inc. 1572 Tilco Drive, Frederick, Maryland 21704 Phone: 301.620.2033 • Fax: 301.662.5487 E-mail: info@stulz-ats.com www.STULZ-USA.com...

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