FScurtis RNP75 - OPERATION AND MAINTENANCE; Start-Up Procedure; Continuous Operation; Shutdown for Maintenance

6
START-UP/OPERATION
Follow the procedure below to start your dryer. Failure
tofollowtheprescribedstart-upprocedurewillinvalidate
thewarranty.Ifproblemsariseduringstart-up,callyour
distributor.
RefertoSerialNumberTagfordryeroperating
capacity.Donotexceedrecommendedcapacity.
Drainconnectionsmustbemadebeforethedryercanbe
operated.Thedryersarefullyautomaticandrequireno
auxiliarycontrols.
1. TurnthedryerON/OFFswitchtoOFF.
2. Checkthatthemainelectricalsupplyvoltagematches
thevoltagespeciedonthedryerdataplate.
3. Checkproperconnectionandsupportofcompressedair
linestothedryer;checkbypassvalvesystem,ifinstalled.
4. SLOWLYpressurizethedryer.Theoutletvalvesofthe
dryershouldbeclosedtopreventowthroughthe
dryer.
5. Turn on the main electrical power to the dryer.
6. Ensureadequateventilationforair-cooleddryers.
To start dryer:
1. Turn the power switch to ON.Therefrigerantcompressor
will turn on.
2. Allowthedryertorun15minutes.Conrmthatthe
temperatureindicatorsareinthegreenzone.
3. SLOWLYopenthedryeroutletvalvespermittingow
through the dryer.
4. Conrmthatcondensateisdischargingfromthedrain
valvebypressingthe"TEST"button.
5. Checkdrainvalvetiming.SeeAUTOMATICDRAINVALVE
sectionfordrainvalveadjustmentprocedure.
6. Conrmthattheinletairtemperature,pressureand
airowtothedryermeetthespeciedrequirements(see
EngineeringDatasection).
7. Conrmthatthecondensatelinesfromthedrainvalve
dischargeintoacollectiontankoranenvironmentally-
approved disposal system.
Thedryerisdesignedtoruncontinuously.Letthedryerrun
evenwhenthedemandforcompressedairisinterrupted;
thedryerwillnotfreezeup.
SHUTDOWN
Whenthedryermustbeshutdownformaintenanceorother
reasons,usethefollowingprocedure.
Ifelectricalrepairsmustbemade:
1. Turnoffthepowerswitch.
2. Disconnectthemainpowersupply.
3. Lockoutandtagthepowersupplyinaccordancewith
OSHArequirements.
Ifmechanicalrepairsaretobemadeorserviceisperformed,
venttheinternalpressureofthedryertoatmospheric
pressure.Restartthedryeraccordingtothestart-up
instructions.
Disconnectpowersupplyanddepressurize
dryerbeforeservicing.Dismantlingorworkingonany
componentofthecompressedairsystemunderpressure
maycauseequipmentfailureandseriouspersonalinjury.
MAINTENANCE
Thedryersrequirelittlemaintenanceforsatisfactory
operation.Gooddryerperformancecanbeexpectedifthe
followingroutinemaintenancestepsaretaken.
Dismantlingorworkingonanycomponent
ofthecompressedairsystemunderpressuremaycause
equipmentfailureandseriouspersonalinjury.Before
dismantlinganypartofthedryerorcompressedairsystem,
completely vent the internal pressure to the atmosphere.
General
Forcontinuedgoodperformanceofyourrefrigerateddryer,
allrefrigerationsystemmaintenanceshouldbeperformedby
acompetentrefrigerationmechanic.
NOTE:Beforecorrectivemaintenanceisdoneduringthe
warrantyperiod,callyourlocaldistributorandproceed
accordingtoinstructions.Refertothewarrantyforlimitsof
your coverage.
Daily Maintenance
Checktheoperationoftheautomaticdrainvalveatleast
oncedaily.SeetheFieldServiceGuideforremediestodrain
valvemalfunctions.SeetheAUTOMATICDRAINVALVE section
fordrainvalveadjustment.