7
7. Auto-Restart
a. Use the ‘Up’ and ‘Down’ arrow buttons to enable/
disable auto-restart. Press ‘Enter’ to accept the new
selection.
b. Press ‘ESC’ to return to the Main Menu.
E. Dryer Startup
NOTICE:EnergizeDryerfor24hourspriortostarting
refrigerationcompressor!Failuretofollowthesenoticesmay
resultinanon-warrantablecompressorfailure.
1. Start dryer 15 minutes prior to compressed air flow.
2. On water-cooled models: begin cooling water flow prior
to compressor startup.
3. Checkforproperelectricalvoltage.
4. Slowlypressurizeunitairsidebyopeninginletisolation
valve.Checkforleaks.
5. After15minutes,openoutletisolationvalveslowly.
6. Close air bypass valve.
7. Select dryer operating mode with Manual/Schedule
mode button.
NOTE:Checkforcorrectphasingofunit.
Onair-cooledmodels:checkfanrotation(airmustbepulled
throughthecondenser).Fansmaynotstartimmediatelyor
maycycleonandoff.Ifrotationisinthewrongdirection
followtheprocedurebelow.
Onwater-cooledmodels:Afterstartingdryerifanunusual
noise is heard and the discharge line does not get hot,
stopthedryer,reversetwopowerleads,restart,andverify
discharge line gets hot.
F. Dryer Operation
1. ManualMode-PushingtheOn/Offbuttonwillcausethe
dryertoturnonorturnoff.Dryerstatusisindicatedon
thetextdisplay.Thecompressorwillbegincyclingbased
on the glycol temperature. The compressor LED will
reectthestateofthecompressor.
2. Scheduled Mode - Pressing the Schedule Mode button
will cause the dryer to toggle between scheduled and
manual modes. In scheduled mode the dryer will turn
on/offbasedonthescheduleenteredduringthedryer
setup. The compressor will cycle based on the glycol
temperature when the dryer is on.
3. Remote Mode - By closing the remote mode contact the
dryerwillenteraremotecontrolmode.Thestateofthe
dryerwillbebasedontheremotecontrolcontact.Ifthe
contactisclosedthedryerwillrun,ifthecontactisopen
thedryerwillremainoff.
NOTE: The dryer may be returned to manual mode at any
time by pressing the schedule button. Manual Mode will
appearontextdisplay.Tore-enablescheduledoperation,
press the schedule button again.
Auto-Restart
Disabled(FactoryDefault)-Followingapowerinterruption
the dryer will begin operation in manual mode with the dryer
off.
Enabled - Following a power interruption the dryer will return
to the previous operating mode and will turn the dryer on or
offbasedonthemode.
Manual Mode - Dryer will return to state it was in prior to
powerfailure.
ScheduledMode-Dryerwillbeonoroffbasedonthe
programmed schedule.
RemoteMode-Dryerwillbeonoroffbasedonremote
control contact.
G. Dryer Display
1. Operating Mode - Displays the current date/time and
operating mode.
2. DryingStatus-Displaysthestatusofthedryer(on/off)
3. HourstoService-Displaysthehoursremainingbefore
dryer service is required.
4. Total Hours - Displays the total hours the dryer has been
operating.
5. Daily Run Time - Displays the average dryer load over the
last 24 hours.
6. Average Run Time - Displays the average dryer load over
the last 30 days.
7. Energy Savings - Displays the estimated annual energy
savings based on the average dryer load over the last 30
days.
8. Glycol Temperature - Displays the glycol temperature
reading.
H. Dryer Alarms
SERVICE DRYER - Indicates that the service interval
forthedryerhasexpired.Performrequireddryer
maintenance and reset using the alarm reset button.
HIGH DISCHARGE PRESSURE - Indicates that the
refrigerationcompressorcontrolcircuithasopened
becauseofhighheadpressure.Thehighpressure
switchmustberesetmanually.Afterxingthefaultand
resetting the pressure switch the alarm can be cleared
using the alarm reset button.
COMPRESSOR–Indicatesthatthecompressorcontactor
hasnotengaged.Checkthecompressorcontactor.
Oncethefaulthasbeencorrectedthealarmcanbe
manually cleared using the alarm reset button.
TEMPERATURESENSORFAILURE–Indicatesaproblem
withthe10kOhmNTCThermistor.Checktomakesure
the thermistor is properly connected to the control
board and the resistance across the Thermistor is correct.
Oncethefaulthasbeencorrected,thealarmcanbe
manually cleared using the alarm reset button.
HIGH TEMPERATURE -
HIGHGLYCOLTEMPERATURE–
Indicates that the dryer is overloaded or there is a
problemwiththerefrigerationsystemleadingtopoor
dryerperformance.Oncethefaulthasbeencorrected
the alarm can be manually cleared using the alarm reset
button.
HEATER–Indicatesaproblemwiththecrankcaseheater.
Thecrankcaseheatershouldenergizeanytimethe
dryerisoff.Checktomakesurethecrankcaseheateris
energized.Oncethefaulthasbeencorrectedthealarm
can be manually cleared using the alarm reset button.
DRAIN–Indicatesaproblemwiththeelectronicdemand
drain.Refertotheelectronicdemanddrainmanualfor
furtherinformationonhowtocorrectthedrainfault.
Oncethefaulthasbeencorrectedthealarmcanbe
manually cleared using the alarm reset button.
