4
INSTRUMENTATION
ON/OFF Switch
ThedryerisequippedwithanON/OFFswitchonthefront
panel.Alightsignalswhenthedryerison.
Color Indicator
Alldryersareequippedwithacolorindicatorwhichindicates
dryerconditionsasfollows:
Itisnormalfortheindicatorcolortobeintheredzonewhen
thedryerisrstturnedonandthenmovetothegreenzone
whenthedryerreachesitsnormaloperatingtemperature.If
thisindicatorisintheredzoneduringnormaloperation,turn
thedryerofftoavoidcompressordamage.RefertotheField
ServiceGuideforadditionalinformation,orcallyourlocal
distributor.
DRAIN VALVES
Anelectronicdrainvalveissuppliedtoautomatically
dischargecondensatefromthedryer.Thedrainvalveand
itscontrolsareaccessiblefromtherearofthedryer.The
electronic drain valve has two indicators and a test button to
helpverifyoperation.Pushingthetestbuttoncausesthe
drainporttoclickopen.Ifeitherindicatorfailstoturnon
atthepropertime,refertothemaintenancesectionofthis
manual.Drainvalveoperationiscontrolledbyanelectronic
timer.Thedrainopeningcanbesetfrom0.5secto10sec.
Thedraincyclecanbesetfrom0.5minto45min.
Drain Valve Adjustment
Tominimizeairlosses,thedraintimershouldbeadjusted
toopenthedrainportjustlongenoughtodischarge
accumulatedcondensate.Setthetimersothatonlyair
dischargesattheendoftheopenperiod.
Recommended Drain Settings
Time
ModelSCFM Open(Sec) Closed(Min)
25 2 10
35 210
50 210
NOTE:Ifliquiddischargesastheportisclosing,setthetimerfora
shortercycleoralongeropening.Theamountofcondensatewill
vary as ambient conditions and inlet flow rates change.
START-UP/OPERATION
Follow the procedure below to start your dryer. Failure
tofollowtheprescribedstart-upprocedurewillinvalidate
thewarranty.Ifproblemsariseduringstart-up,callyour
distributor.
RefertoSerialNumberTagfordryeroperating
capacity.Donotexceedrecommendedcapacity.
Drainconnectionsmustbemadebeforethedryercanbe
operated.Thedryersarefullyautomaticandrequireno
auxiliarycontrols.
1. Connectinletandoutletlinestothedryer.Reference
dryerindentationsandinstructiontagforappropriate
inlet and outlet connections.
2. Routedrainconnectionstoacondensateseparatoror
approved collection point.
3. Turntheon/offswitchtoon.Doublecheckconnections.
4. Afterthedryerhasbeenrunningfor30minutes:
a. Checkthaton/offlightedswitchisglowing.Iflight
isnotglowing,unplugunitandrefertoFieldService
Guideforadditionalinformationorcallyourlocal
distributor.
b. ChecktheColorIndicator.IftheIndicatorisinthe
redzone,unplugthedryer.RefertotheField
ServiceGuideforadditionalinformation,orcallyour
local distributor.
c. Conrmthatcondensateisdischargingfromthe
drain. This can only be done when there is air flow
through the dryer.
ReferenceSerialNumberTagforappropriate
powerrequirement/connectionrating.Makeotherdryer
connections prior to connecting power source.
Thedryerisdesignedtoruncontinuously.Letthedryerrun
evenwhenthedemandforcompressedairisinterrupted;
thedryerwillnotfreezeup.
Operating Check Points
1. Powerlightison,lightisilluminated.
2. Condensateisdischargingproperly.
3. ColorIndicatorisintheGreenZone.
SHUTDOWN
Whenthedryermustbeshutdownformaintenanceorother
reasons,usethefollowingprocedure:
1. Turnthepoweron/offswitchtooff.
2. Disconnectthemainpowersupply.
Ifmechanicalrepairsaretobemadeorserviceisperformed,
venttheinternalpressureofthedryertoatmospheric
pressure.Restartthedryeraccordingtothestart-up
instructions.
Disconnectpowersupplyanddepressurize
dryerbeforeservicing.Dismantlingorworkingonany
componentofthecompressedairsystemunderpressure
maycauseequipmentfailureandseriouspersonalinjury.
