TWP/TWB200 – TWP/TWB9000
26
SWITCHING TO HEATLESS
The Switch To Heatless button has been touched from the Service Screen.
The dryer will immediately switch to cooling and completely cool the tower before
switching to Heatless.
SWITCHING TO HEATED
The Switch To Heated button has been touched from the Service Screen.
The dryer will immediately switch to Heated once the towers have repressurized.
RUNNING IN HEATLESS BACKUP
The dryer is running in Heatless Regeneration Mode.
DRYER IN POWER SAVER STATE
The Dewpoint is below the dewpoint demand set point at the end of the standard
drying time.
Dryer will wait until dewpoint rises above the set point before switching towers.
EXTENDED PURGING ACTIVE (Blower Models Only)
The 2% Cooling Setting is enabled in the Advanced Setting screen.
The dewpoint is below the dewpoint demand set point at the end of the
standard drying time.
The regenerating tower will continue to regenerate for the amount of time specied
in the Extended Drying Time setting (Typically 60 minutes), or until the dewpoint
rises above the dewpoint demand set point.
Not applicable if Dewpoint Demand is not installed and enabled.
Refer to the Alarms Section for a complete list of alarm messages which are also
displayed on this line.
a. State Message Line –
Displays the current regeneration state and the amount of time remaining in that state.
DRYER PARKED
The dryer has not yet been started. Once the dryer is started, it cannot be placed into
PARKED state without re-programming the PLC.
LEFT TOWER BLOWING DOWN / RIGHT TOWER BLOWING DOWN
Regenerating tower is waiting to depressurize before purging.
LEFT TOWER HEATING / RIGHT TOWER HEATING
Heated purge air is regenerating the tower before purging.
LEFT TOWER BLOWER COOLING / RIGHT TOWER BLOWER COOLING
(Blower Models Only).
Blower is cooling down the heater tube before switching to Cooling Regeneration.
BLOWER REGENERATION MODELS ONLY.
LEFT TOWER COOLING / RIGHT TOWER COOLING
Cool air is cooling down the tower.
If the dryer uses a blower and the Use 2% Purge Cooling setting is enabled, additional
purging also takes place during this state.
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