Restoring the Process Air Dew Point Meter (E5CK) to Factory Setup................25
Redundant Safety Controller Display.................................................................. 26
Setting the Redundant Safety Controller.............................................................26
Restoring the WATLOW Redundant Safety Controller to Factory Setup............ 26
4-3 System Operation Procedures.................................................................................. 29
Controller Operation (Without Optional Alarm Horn & Reset Button).................28
Controller Operation (With Optional Alarm Horn & Reset Button).......................29
Alarm Display Messages.....................................................................................31
4-4 Auto-Tuning the Dryer............................................................................................... 32
4-5 Shutting Down the Dryer........................................................................................... 32
CHAPTER 5: MAINTENANCE ................................................. 35 5-1 Preventative Maintenance Schedule.........................................................................35
5-2 Preventative Maintenance.........................................................................................35
Servicing Process Air Filters................................................................................35
Servicing the Dew Point Monitor......................................................................... 37
5-3 Corrective Maintenance ............................................................................................37
Symptoms of Worn Desiccant............................................................................. 38
Replacing Worn Desiccant.................................................................................. 37
Replacing the Regeneration Heaters.................................................................. 39
Replacing the Process Heaters ……………………………………………………. 40
Replacing / Cleaning the Cooling Coil …………………………………………….. 40
CHAPTER 6: TROUBLESHOOTING ....................................... 42 6-1 Introduction................................................................................................................42
6-2 Determining Temperature Controller Errors or Sensor Errors...................................44
Using a Thermocouple.......................................... Error! Bookmark not defined.
Using a Platinum Resistance Thermometer..........Error! Bookmark not defined.
CHAPTER 7: APPENDIX..........................................................45 7-1 Warranty....................................................................................................................45
Warranty Specifications.......................................................................................45
Warranty Restrictions.......................................................................................... 45
Warranty Liabilities.............................................................................................. 45
Customer Responsibilities...................................................................................46
7-2 Technical Specifications............................................................................................46
Annex B Information............................................................................................46
Aftercooler Design Specifications........................................................................47
7-3 Drawings and Diagrams............................................................................................ 47
7-4 Spare Parts List.........................................................................................................50
7-5 Returned Material Policy........................................................................................... 52
Credit Returns..................................................................................................... 52
Warranty Returns................................................................................................ 52
7-6 Dryer Identification (Serial Number) Tag...................................................................52
7-7 Technical Assistance.................................................................................................53
Parts Department................................................................................................ 53
Service Department.............................................................................................53
Sales Department................................................................................................53
Contract Department........................................................................................... 53
Dehumidifying Dryers 4