Use and Care Manual

5
MAINTENANCE
Thedryersrequirelittlemaintenanceforsatisfactory
operation.Gooddryerperformancecanbeexpectedifthe
followingroutinemaintenancestepsaretaken.
Disconnectpowersupplyanddepressurize
dryerbeforeperforminganymaintenance.
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separatorforcondensatedischarge.Ifno
dischargeisevident,depressurizeandperformthefollowing:
1. ElectricDrain-Cleanstrainerand/orclean/replace
solenoid valve.
Monthly Maintenance
Inspectthecondensercoils.Removeaccumulateddustand
dirtwithasoftbrushorwithairfromanOSHAapproved
compressedairnozzlethatlimitsthedischargepressureto
30 psig.
Electronic Drain Valve Disassembly and Servicing
Donotdisassembledrainvalvetimerorattempt
torepairelectricalparts.Replacetimerifdefective.
Thedrainvalvedischargecondensatethroughafull-port
drain opening. The valve body may need to be cleaned under
conditionsofgrossparticulatecontamination.
Todisassemblethedrainvalvebodyforcleaningandother
maintenance:
1. Turnpowerswitchoff.
2. Disconnectmainpowersupplytodryer.
3. Depressurizeunit.
4. LockoutandtagpowersupplyinaccordancewithOSHA
requirements.
Ifpowersupplyisnotconnectedandunitis
notdepressurizedbeforedisassembly,seriouspersonalinjury
and valve damage may result.
5. Removescrewandwasherfromfrontofthedrainvalve.
6. Removethepowersupplyconnectorandgasket(with
thetimerassemblyifattached)fromthesolenoidcoil
housing.Donotdamageorlosethegasket.
7. Removecoilxingnutandspringwasherfromtopof
solenoid coil housing.
8. Liftsolenoidcoilhousingoffsolenoidcoreinvalvebody.
9. Unscrewsolenoidcorefromvalvebody.
Oncethedrainvalveisdisassembled,thefollowing
maintenancecanbeperformed.
1. Inspectinternalpartsofvalvebody;cleanorreplaceas
required.
 NOTE:Replacesolenoidvalveifcomponentdamageis
observed.
2. Removedebrisfromvalvebody.
3. Wipesolenoidcorecomponentswithacleanclothor
blowoutdebriswithcompressedairfromanOSHA-
approvedairnozzlethatlimitsitsdischargepressureto
30 psig.
4. Checkthattheplungerassemblyiscleanandmoves
freelyinhousing.
5. Iftimerisattachedtovalvebody,checkelectrical
continuity across timer assembly.
Toreassemblethedrainvalve,reversethesequence
oftheprecedingsteps.Afterthedrainvalveis
reassembled,connectthemainpowersupplytothe
dryer.Whenthedryerisreturnedtoservice,check
thedrainvalveforairorcondensateleaks;tighten
connectionsasrequiredtocorrectleaks.Checkthedrain
cycle;adjustthetimeraccordingtotheprocedureinthe
drainvalveadjustmentsection.
Returns to Manufacturer
Ifthedryeroracomponentofthedryermustbereturnedto
themanufacturer,rstcallyourlocaldistributorforareturn
authorizationnumberandshippingaddress.Yourdistributor
willinformyouwhetherthedryeroronlyacomponentmust
bereturned.Markthepackagewiththereturnauthorization
numberandshipfreightprepaidasdirectedbyyourlocal
distributor.