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Dehumidifying Dryers ii
Table of Contents
CHAPTER 1: SAFETY................................................................V
1-1 How to Use This Manual ............................................................................................. v
Safety Symbols Used in this Manual..................................................................... v
1-2 Warnings and Precautions ......................................................................................... vi
1-3 Responsibility .............................................................................................................vii
General Responsibility......................................................................................... vii
Operator Responsibility .......................................................................................viii
Maintenance Responsibility.................................................................................. ix
Reporting a Safety Defect .................................................................................... ix
CHAPTER 2: FUNCTIONAL DESCRIPTION ........................... 11
2-1 Models Covered in This Manual................................................................................11
2-2 General Description................................................................................................... 11
What is desiccant? ..............................................................................................12
The Process/Regeneration Cycle........................................................................12
2-3 Standard Features..................................................................................................... 12
Mechanical Features ...........................................................................................12
Electrical Features...............................................................................................12
Controller Features..............................................................................................13
2-4 Options......................................................................................................................13
2-5 Safety Devices and Interlocks...................................................................................13
CHAPTER 3: INSTALLATION.................................................. 15
3-1 Uncrating the Equipment...........................................................................................15
3-2 Rigging and Placing the Dryer................................................................................... 15
Recommended Dryer Lifting Hardware ...............................................................18
3-3 Electrical Connections............................................................................................... 19
3-4 Setup Procedures......................................................................................................20
Checking for Proper Blower Rotation ..................................................................20
Making Dryer/Drying Hopper Process Air Connections.......................................20
Drying Hopper Air Trap Considerations...............................................................21
Optional Aftercooler.............................................................................................21
3-5 Initial Start-up ............................................................................................................22
Pre-Startup Checks .............................................................................................22
Starting Up the Dryer...........................................................................................22
Auto-Tuning the Dryer .........................................................................................22
Shutting Down the Dryer .....................................................................................23
CHAPTER 4: OPERATION....................................................... 24
4-1 Start-up......................................................................................................................24
4-2 Controller Description and Operation........................................................................25
Identifying Control Panel Indicator Lights and Switches for the Standard
Controller.............................................................................................................25
Process Air Temperature Controller....................................................................26
Setting the Process Air Temperature ..................................................................27