7-3 Alarms
The Alarm Screen will pop up to show what alarm the dryer is having that moment. Look through the window on the door to see the screen.
7-4 Alarm Descriptions
Alarm |
| Alarm Description |
| Alarm Effect |
Code |
|
|
|
|
BV |
| The Main Air Valve did not maintain or find |
| Immediate |
| position. |
| ||
|
| Shut Down | ||
|
| Possible Motor or Limit Switch Failure. |
| |
|
|
|
| |
CV |
| The Closed Loop Cooling Valve did not find |
| Immediate |
| position. |
| ||
|
| Shut Down | ||
|
| Possible Motor or Limit Switch Failure. |
| |
|
|
|
| |
PS |
| The process supply air temperature switch |
| Process |
| opened. |
| ||
|
| Shut Down | ||
|
| Possible thermocouple failure. |
| |
|
|
|
| |
RS |
| The regeneration air temperature switch opened. |
| Regeneration |
| Possible thermocouple failure. |
| Shut Down | |
|
|
| ||
PH |
| Process air temperature deviation is above high |
| Process |
| limit value. |
| ||
|
| Shut Down | ||
|
| Possible solid state relay failure. |
| |
|
|
|
| |
PL |
| Process air temperature deviation is below low |
|
|
| limit value. |
| Alert Only | |
|
| Possible heater failure. |
|
|
RH |
| Regeneration air temperature deviation is above |
| Regeneration |
| high limit value. |
| Shut Down | |
|
|
| ||
|
| The dew point value is above the high limit |
|
|
DP |
| value. |
| Alert Only |
| Possible ambient air contamination or failed |
| ||
|
|
|
| |
|
| regeneration cycle. |
|
|
PB |
| Process blower is not running. |
| Process |
| Possible overload fault, contactor fault. |
| Shut Down | |
|
|
| ||
RB |
| Regeneration blower is not running. |
| Regeneration |
| Possible overload fault, contactor fault. |
| Shut Down | |
|
|
| ||
PF or RF |
| Process air filter (PF) or regen air filter (RF) |
| Alert Only |
|
| requires cleaning. |
|
|
|
| The process redundant air temperature |
|
|
PR |
| thermocouple is out of range. |
| Immediate |
| Possible thermocouple or solid state relay |
| Shut Down. | |
|
|
| ||
|
| failure. |
|
|
Large Dehumidifying Dryers | Troubleshooting | 51 |
