| Setting the Process Air Temperature | 29 |
| Restoring the Process Air Temperature Controller (E5CN) to Factory Settings..29 | |
| Process Air Dew Point Display | 32 |
| Setting the High Dew Point Alarm | 32 |
| Restoring the Process Air Dew Point Meter (E5CK) to Factory Setup | 32 |
| Redundant Safety Controller Display | 33 |
| Setting the Redundant Safety Controller | 33 |
| Restoring the WATLOW Redundant Safety Controller to Factory Setup | 33 |
CHAPTER 5: OPERATION | 35 | |
Initial | 35 | |
| 35 | |
| 35 | |
| Shutting Down the Dryer | 35 |
Dryer Operation Procedures | 36 | |
| Controller Operation (Without Optional Alarm Horn & Reset Button) | 36 |
Alarm Display Messages | 39 | |
40 | ||
40 | ||
CHAPTER 6: MAINTENANCE | 41 | |
Maintenance Schedule | 41 | |
Preventative Maintenance | 42 | |
| Cleaning or Replacing the Process Air Filters | 42 |
| Cleaning or Replacing the Regeneration Filter | 43 |
| Calibrating the Dirty Filter Alarm | 43 |
| Checking the Dewpoint Control System | 44 |
Corrective Maintenance | 45 | |
| Symptoms of Worn Out Desiccant | 45 |
| Replacing the Desiccant | 45 |
| Replacing the Process Heater (Electric Dryers) | 46 |
| Replacing the Regeneration Heater (Electric Dryers) | 47 |
CHAPTER 7: TROUBLESHOOTING | 49 | |
Introduction | 49 | |
Basic Troubleshooting | 49 | |
Alarms | 51 | |
Alarm Descriptions | 51 | |
52 | ||
| Using a Thermocouple | 52 |
| Using a Platinum Resistance Thermometer | 52 |
CHAPTER 8: APPENDIX | 53 | |
Warranty | 53 | |
Technical Specifications | 54 | |
| Annex B Information | 54 |
| Aftercooler Design Specifications | 54 |
Drawings and Diagrams | 55 | |
Spare Parts List | 57 |
Large Dehumidifying Dryers | v |