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Installation 

23 

 

3-7  

  Optional Bypass Valve 

 

If your system required it, the Bypass Valve 
would be located at the very last manifold at the 
end of the system.  The airflow schematic can 
illustrate the location.  The purpose of the valve 
is to send excess delivery air into the return 
stream.  This excess air pushes up on a plunger 
inside the valve and enters the return air hosing.  
Make sure the valve is placed correctly before 
operating your system.  It is important that the 
valve is not flipped because you do not want the 
return air to contaminate the process air. 

 
 

 

Summary of Contents for 882.02569.00

Page 1: ...Central Drying System with MDB Dehumidifying Dryers Mechanical Manual Part Number 882 02569 00 Bulletin Number DRY2 600 00 Effective August 18 2014...

Page 2: ...__________________ _________________________ _________________________ _________________________ We are committed to a continuing program of product improvement Specifications appearance and dimension...

Page 3: ...original Bill of Lading is attached to our original invoice If the shipment was prepaid write us for a receipted transportation bill Advise customer service regarding your wish for assistance and to...

Page 4: ...pplied No credit will be issued for material that is not within the manufacturer s warranty period and or in new and unused condition suitable for resale Warranty Returns Prior to the return of any ma...

Page 5: ...l Options 17 CHAPTER 3 INSTALLATION 18 3 1 Positioning Your Dryer 18 3 2 Connecting the Process and Return Air Hoses 18 3 3 Drying Hopper 21 Removing the Rust Inhibitor 21 Air Trap Considerations 21 3...

Page 6: ...CHAPTER 7 APPENDIX 33 7 1 Technical Assistance 33 Parts and Service Department 33 Sales and Contracting Department 33 7 2 Annex B Information 34 7 3 Drawings and Schematics 35 7 4 Revisions to Manual...

Page 7: ...chapter is intended to serve as a source of detailed assembly and disassembly instructions for those areas of the equipment requiring service Preventive maintenance sections are included to ensure th...

Page 8: ...ures Use caution when using or maintaining this product Every month check heater elements for continuity using an ohmmeter For further information see the Maintenance Chapter in this manual Mandatory...

Page 9: ...the equipment Use care when LOADING UNLOADING RIGGING or MOVING this equipment Operate this equipment within design specifications OPEN TAG and LOCK ALL DISCONNECTS before working on equipment You sho...

Page 10: ...ffective safety program is responsible and economically sound Organize a safety committee or group and hold regular meetings Promote this group from the management level Through this group the safety...

Page 11: ...modify or remove safety guards Such alteration is not only unsafe but will void the warranty on your equipment n When changing control settings to perform a different mode of operation be sure selecto...

Page 12: ...not exceed the capacity of the handling equipment or cause it to become unstable Carefully test the condition of lifting cables chains ropes slings and hooks before using them to lift a load Be sure...

Page 13: ...General Description Moisture removal from hygroscopic moisture attracting plastic pellets is an essential step in the manufacture of high quality plastic products Our Dehumidifying Dryers are used by...

Page 14: ...General Information 14 Orange Standard Hosing Green Option Specific Hosing...

Page 15: ...to the atmosphere The regeneration heater is then turned off while the regeneration blower continues to blow air through the desiccant bed until it is cooled Material Overdrying Protection DryPro Cont...

Page 16: ...have joined with the plastics industry to develop safety standards Every effort has been made to incorporate these standards into the design of the dehumidifying dryer however it is the responsibilit...

Page 17: ...quire Mechanical Options WH Series Stainless Steel Drying Hoppers 30 800 Liter Capacities Hopper Mounted Heater Boosters Consult Factory for available kW Isolation Valves Premium Slidegate Different S...

Page 18: ...Due to the size of the Central Drying System and the number of hoppers the process and return air hoses from the dryer cannot directly be attached to a hopper inlet and outlet Instead the two main hos...

Page 19: ...r Manifold Air returns to the Dryer Inlet Process Air Manifold Air travels to the Hopper Inlet Process Air Hose Connected to a Heater Booster at the Hopper Inlet Return Air Hose Air returns to the Dry...

Page 20: ...Installation 20 This is the optional heater booster which is attached to the hopper inlet The air coming from the dryer passes through here before entering the hopper...

Page 21: ...same direction so that all of the access doors are on one side and all of the manifolds are on one side Remember that all of the manifolds have to be connected via hose and you want to use as little h...

Page 22: ...d the connections that should be present The tubing at the top of the manifold should run to the HI input on the transducer in the hopper control box The lower tubing should be connected to the LO inp...

Page 23: ...n illustrate the location The purpose of the valve is to send excess delivery air into the return stream This excess air pushes up on a plunger inside the valve and enters the return air hosing Make s...

Page 24: ...sufficient cooling water flows properly through the coil and that you have bled any trapped air from the system Make sure that the Aftercooler Precooler has the proper supply water temperature 8 If yo...

Page 25: ...ng or maintaining your CDS System If these instructions become damaged or unreadable you can obtain additional copies from the manufacturer Only qualified personnel familiar with this equipment should...

Page 26: ...22 00856 00 4 Shaft 822 00855 00 located inside spring 5 Hex Nut 3 8x16 6 3 8 Flat Washer 7 Aluminum Plate 822 00860 00 8 Valve Seal W00054021 9 Retaining Ring 10 Gasket W00017812 11 Set Screw 1 4x20x...

Page 27: ...llow cool down may cause serious injury due to excessive temperatures 1 Remove the screws that are bolting the cover onto the NEMA Box 2 Remove the Screws and washers bolting the heater to the box fra...

Page 28: ...k out electrical power and check heater elements for continuity using an ohmmeter Check dew point and temperature tracking with an external dew point monitor and pyrometer Visually inspect the shiftin...

Page 29: ...resin If so replace the desiccant and remove any resin carry over Otherwise change the phase of two legs of the three phase power drop Loss or reduction of process air temperature Process heaters are...

Page 30: ...t is off Check power supply and power wiring to PLC Faulty PLC PLC Power light is on Run light is off and or Error light is on Replace PLC Material in drying hopper cakes or meltdown occurs Process te...

Page 31: ...rol power switch ON Process value is abnormal or not obtained Input polarity on thermo couple is wrong or connection is wrong Properly wire the terminals Negative is always Red No compensating lead wi...

Page 32: ...inals the controller is normal and the sensor is probably broken short circuited or incorrectly wired Using a Platinum Resistance Thermometer If the controller displays a temperature of about 0 0 C 32...

Page 33: ...86 512 8717 1919 Email acsasiacustserv corpemail com Sales and Contracting Department Our products are sold by a worldwide network of independent sales representatives Contact our Sales Department for...

Page 34: ...ed disconnect serves as the electrical disconnect device 15 Dryer is equipped with a CE mark On applicable models 16 Dryer is supplied with an operating manual in the language of the destination count...

Page 35: ...7 3 Drawings and Schematics Drawings and schematics have been shipped to you along with this manual If you need additional copies contact ACS with your model number s and new copies will be sent you...

Page 36: ...Appendix 36 7 4 Revisions to Manual Revision Bulletin Number DRY2 600 00 Revision Date August 18 2014 Changes Made 1 Initial Release...

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