ACS 882.02569.00 User manual

Central Drying System
with MDB Dehumidifying Dryers
Mechanical Manual
Part Number: 882.02569.00
Bulletin Number: DRY2-600.00
Effective: August 18, 2014

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Write Down Your Serial Numbers Here For Future Reference:
_________________________ _________________________
_________________________ _________________________
_________________________ _________________________
We are committed to a continuing program of product improvement.
Specifications, appearance, and dimensions described in this manual are subject to change without notice.
DCN No. ____________
© Copyright 2014
All rights reserved.

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Shipping Info
Unpacking and Inspection
You should inspect the Central Drying System for possible shipping damage.
Thoroughly check the equipment for any damage that might have occurred in transit, such as
broken or loose wiring and components, loose hardware and mounting screws, etc.
In the Event of Shipping Damage
According to the contract terms and conditions of the Carrier, the responsibility of the Shipper
ends at the time and place of shipment.
Notify the transportation company’s local agent if you discover damage.
Hold the damaged goods and packing material for the examining agent’s inspection. Do not
return any goods before the transportation company’s inspection and authorization.
File a claim with the transportation company. Substantiate the claim by referring to the agent’s
report. A certified copy of our invoice is available upon request. The 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 obtain an RMA (return
material authorization) number.
If the Shipment is Not Complete
Check the packing list as back-ordered items are noted on the packing list. You should have:
!Dehumidifying Dryer, Drying Hoppers, and any other equipment that has been
ordered for your drying system.
!Bill of lading
!Packing list
!Operating and Installation packet
!Electrical schematic and panel layout drawings
!Component instruction manuals
Re-inspect the container and packing material to see if you missed any smaller items during
unpacking.
If the Shipment is Not Correct
If the shipment is not what you ordered, contact the shipping department immediately. For
immediate assistance, please contact the correct facility located in the technical assistance section
of this manual. Have the order number and item number available. Hold the items until you
receive shipping instructions.

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Returns
Do not return any damaged or incorrect items until you receive shipping instructions from the
shipping department.
Credit Returns
Prior to the return of any material authorization must be given by the manufacturer. A RMA
number will be assigned for the equipment to be returned.
Reason for requesting the return must be given.
ALL returned material purchased from the manufacturer returned is subject to 15% ($75.00
minimum) restocking charge.
ALL returns are to be shipped prepaid.
The invoice number and date or purchase order number and date must be supplied.
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 material, authorization must be given by the manufacturer. A RMA
number will be assigned for the equipment to be returned.
Reason for requesting the return must be given.
All returns are to be shipped prepaid.
The invoice number and date or purchase order number and date must be supplied.
After inspecting the material, a replacement or credit will be given, at the manufacturer’s
discretion. If the item is found to be defective in materials or workmanship, and it was
manufactured by our company, purchased components are covered under their specific warranty
terms.

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Table of Contents
CHAPTER 1:!SAFETY..............................................................VII!
1-1!How to Use This Manual ............................................................................................vii!
Safety Symbols Used in this Manual....................................................................vii!
1-2!Warnings and Precautions ..........................................................................................ix!
1-3!Responsibility .............................................................................................................. x!
General Responsibility .......................................................................................... x!
Operator Responsibility......................................................................................... x!
Maintenance Responsibility .................................................................................xii!
Reporting a Safety Defect ....................................................................................xii!
CHAPTER 2:!GENERAL INFORMATION ................................ 13!
2-1!Models Covered in This Manual................................................................................ 13!
2-2!Necessary Documents .............................................................................................. 13!
2-3!General Description .................................................................................................. 13!
The Process/Regeneration Cycle ....................................................................... 15!
Material Overdrying Protection (DryPro Control Only) ........................................ 15!
2-4!Central Drying System Options................................................................................. 17!
Mechanical 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!
3-4!Positioning Your Hopper ........................................................................................... 21!
3-5!Optional Damper Valve ............................................................................................. 21!
3-6!Optional Pressure Orifice (Required with Damper Valve)......................................... 22!
3-7!Optional Bypass Valve ............................................................................................. 23!
CHAPTER 4:!OPERATION....................................................... 24!
4-1!Pre-Startup Checks................................................................................................... 24!
4-2!Using the Optional Isolation Valves .......................................................................... 24!
CHAPTER 5:!MAINTENANCE ................................................. 25!
5-1!Work Rules................................................................................................................ 25!
5-2!Optional Damper Valve Maintenance ....................................................................... 25!
5-3!Optional Bypass Valve Maintenance ........................................................................ 26!
5-4!Replacing the Process Heaters................................................................................. 27!
5-5!Preventative Maintenance Checklist......................................................................... 28!
CHAPTER 6:!TROUBLESHOOTING ....................................... 29!
Determining Temperature Controller Errors or Sensor Errors................................... 32!

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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.................................................................................................. 36!

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Chapter 1: Safety
1-1 How to Use This Manual
Use this manual as a guide and reference for installing, operating, and maintaining the Central
Drying System. The purpose is to assist you in applying efficient, proven techniques that enhance
equipment productivity.
This manual covers only light corrective maintenance. No other maintenance should be undertaken
without first contacting a service engineer.
The General Information section outlines models covered, standard features, and safety features.
Additional sections within the manual provide instructions for installation, pre-operational
procedures, operation, preventive maintenance, and corrective maintenance.
The Installation chapter includes required data for receiving, unpacking, inspecting, and setup of
the Central Drying System. We can also provide the assistance of a factory-trained technician to
help train your operator(s) for a nominal charge. This section includes instructions, checks, and
adjustments that should be followed before commencing with operation of the dryer. These
instructions are intended to supplement standard shop procedures performed at shift, daily, and
weekly intervals.
The Maintenance 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 that the dehumidifying dryer provides excellent, long service.
The Troubleshooting chapter serves as a guide for identification of most common problems.
Potential problems are listed, along with possible causes and related solutions.
The Appendix contains technical specifications, drawings, schematics, parts lists, and available
options. A spare parts list with part numbers specific to your machine is provided with your
shipping paperwork package. Refer to this section for a listing of spare parts for purchase. Have
your serial number and model number ready when ordering.
Safety Symbols Used in this Manual
The following safety alert symbols are used to alert you to potential personal injury hazards.
Obey all safety messages that follow these symbols to avoid possible injury or death.
DANGER indicates an imminently hazardous situation that, if not avoided, will result
in death or serious injury.
WARNING indicates a potentially hazardous situation or practice that, if not avoided,
could result in death or serious injury.
CAUTION indicates a potentially hazardous situation or practice that, if not avoided,
may result in minor or moderate injury or in property damage.

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Dryer Safety Tags
Hazard Alert Symbol
Description/Explanation
Preventative Maintenance
High Voltage Hazard. The
electrical enclosure is supplied
with 3-phase electrical power.
Use caution when using or
maintaining this product.
Every six months inspect all
electrical connections for
secure attachment
Auto start Hazard.
Equipment may start at any
time. Lock out/tag out
before servicing the
machine.
Every month inspect all
electrical connections for
secure attachment and that all
warning labels are in place.
Hot Surface Hazard.
When the unit operates
above 212F (100C) the
surface of the unit may
reach excessive
temperatures. 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 Symbol
Description/Explanation
Read Operators Manual. This equipment must be operated and
maintained by properly trained personnel. The information
contained within this manual must be read and understood prior to
operating this equipment.
Lock Out. This equipment is operated with 3-phase electrical
power. Therefore, when performing any maintenance operations
we recommend following the local standards for performing a
lock-out/tag-out procedure.
Prohibition Symbol. Do not reach into any of the equipment while
the equipment is running and/or the power is on. Lock out all
power before performing maintenance on the machine(s).

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1-2 Warnings and Precautions
Our equipment is designed to provide safe and reliable operation when installed and operated
within design specifications, following national and local safety codes. This may include, but is
not limited to OSHA, NEC, CSA, SPI, and any other local, national and international regulations.
To avoid possible personal injury or equipment damage when installing, operating, or maintaining
this equipment, use good judgment and follow these safe practices:
!Read and follow these operation and installation instructions when installing,
operating, and maintaining this equipment. If these instructions become
damaged or unreadable, additional copies are available from the manufacturer.
!Follow all SAFETY CODES.
!Wear SAFETY GLASSES and WORK GLOVES.
!Work only with approved tools and devices.
!Disconnect and/or lock out power before servicing or maintaining 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 should remove the fuses and carry them with you.
!Make sure the equipment and components are properly GROUNDED before you
switch on power.
!When welding or brazing in or around this equipment, make sure VENTILATION is
ADEQUATE. PROTECT adjacent materials from flame or sparks by shielding with
sheet metal. An approved FIRE EXTINGUISHER should be nearby and ready for
use if needed.
!Do not restore power until you remove all tools, test equipment, etc., and the
equipment and related components are fully reassembled.
!Only PROPERLY TRAINED personnel familiar with the information in this
manual should work on this equipment.
We have long recognized the importance of safety and have designed and manufactured our
equipment with operator safety as a prime consideration. We expect you, as a user, to abide by the
foregoing recommendations in order to make operator safety a reality.

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1-3 Responsibility
These machines are constructed for maximum operator safety when used under standard operating
conditions and when recommended instructions are followed in the maintenance and operation of
the machine.
All personnel engaged in the use of the machines should become familiar with their operation as
described in this manual.
Proper operation of the machine promotes safety for the operator and all workers in its vicinity.
Each individual must take responsibility for observing the prescribed safety rules as outlined. All
warning and danger signs must be observed and obeyed. All actual or potential danger areas must
be reported to your immediate supervisor.
General Responsibility
No matter who you are, safety is important. Owners, operators and maintenance personnel must
realize that every day, safety is a vital part of their jobs.
If your main concern is loss of productivity, remember that production is always affected in a
negative way following an accident. The following are some of the ways that accidents can affect
your production:
•Loss of a skilled operator (temporarily or permanently)
•Breakdown of shop morale
•Costly damage to equipment
•Downtime
An effective 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 program can be continually reviewed,
maintained, and improved. Keep minutes or a record of the meetings.
Hold daily equipment inspections in addition to regular maintenance checks. You will keep your
equipment safe for production and exhibit your commitment to safety.
Please read and use this manual as a guide to equipment safety. This manual contains safety
warnings throughout, specific to each function and point of operation.
Operator Responsibility
The operator’s responsibility does not end with efficient production. The operator usually has the
most daily contact with the equipment and closely knows its capabilities and limitations.
Plant and personnel safety is sometimes forgotten in the desire to meet incentive rates, or through
a casual attitude toward machinery formed over a period of months or years. Your employer
probably has established a set of safety rules in your workplace. Those rules, this manual, or any
other safety information will not keep you from being injured while operating your equipment.
Learn and always use safe operation. Cooperate with co-workers to promote safe practices.
Immediately report any potentially dangerous situation to your supervisor.