FScurtis RNP75 User manual

3227498
Rev. A
AUGUST 2012
RNP SERIES
REFRIGERATED COMPRESSED AIR DRYERS
OPERATOR
MANUAL
RNP75 RNP100 RNP125
RNP150 RNP200 RNP250
RNP300 RNP400 RNP500

2
GENERAL SAFETY INFORMATION
1. PRESSURIZED DEVICES:
This equipment is a pressure containing
device.
• Donotexceedmaximumoperating
pressure as shown on equipment
serial number tag.
• Makesureequipmentisdepressurizedbefore
workingonordisassemblingitforservice.
2. ELECTRICAL:
This equipment requires electricity to
operate.
• Installequipmentincompliancewith
all applicable electrical codes.
• Standardequipmentissuppliedwithelectrical
enclosuresnotintendedforinstallationinhazardous
environments.
• Disconnectpowersupplytoequipmentwhen
performinganyelectricalservicework.
3. BREATHING AIR:
• Airtreatedbythisequipmentmay
notbesuitableforbreathingwithout
furtherpurication.
 Refertoapplicablestandardsand
specicationsfortherequirements
forbreathingqualityair.
RECEIVING, MOVING, AND UNPACKING
A. RECEIVING
Thisshipmenthasbeenthoroughlychecked,packedand
inspectedbeforeleavingourplant.Itwasreceivedin
goodconditionbythecarrierandwassoacknowledged.
CheckforVisibleLossorDamage.Ifthisshipmentshows
evidenceoflossordamageattimeofdeliverytoyou,
insistthatanotationofthislossordamagebemadeon
the delivery receipt by the carrier’s agent.
B. UNPACKING
Checkforconcealedlossordamage.Whenashipment
hasbeendeliveredtoyouinapparentgoodorder,but
concealeddamageisfounduponunpacking,notifythe
carrier immediately and insist on his agent inspecting
the shipment. Concealed damage claims are not our
responsibilityasourtermsareF.O.B.pointofshipment.
C. MOVING
Inmovingortransportingdryer,donottipdryerontoits
side.
D. STORAGE
IMPORTANT:Donotstoredryerintemperaturesabove
130°F (54.4°C).

3
Compressor
Oil Removal
Filter
Aftercooler Automatic Drain
Dryer
Separator Receiver
TYPICAL COMPRESSED AIR SYSTEM
INSTALLATION
Ambient Air Temperature
Locatethedryerindoorswheretheambientairtemperature
willbebetween45°Fand110°F.Intermittentoperationat
ambient temperatures up to 113°F will not damage the dryer
but may result in a higher dew point or dryer shutdown
duetohighrefrigerantdischargepressure(seeFieldService
Guide).
Donotoperateair-cooleddryersatambientairtemperatures
below40°F.Suchoperationmayresultinlowsuction
pressure,causingfreeze-up.
Location and Clearance
Mountthedryeronalevelbase.Ifthebasevibrates,bolt
theunitdownusingvibrationdampeners.Ifthedryeris
air-cooled,installitinaclean,well-ventilatedareatoreduce
foulingofthecondensercoilswithdirtanddust.Allowat
least24inchesclearanceonthesidesandthefrontofthe
dryerforcoolingairowandforserviceaccess.
System Arrangement
Liquidwaterintheinletairwilladverselyaffectthe
performanceofthedryer.Installthedryerdownstreamofan
aftercoolerorseparatorsothatthetemperatureofthedryer
inletairdoesnotexceed120°Fandtheinletairdoesnot
contain any liquid water.
Ifthecompressedairowisrelativelyconstantanddoesnot
exceedthedryerowrating,itisrecommendedthatthe
dryerbelocateddownstreamofthereceivertank.Ifthe
natureoftheapplicationissuchthattheairdemandregularly
exceedsthedryerowrating,itisrecommendedthatthe
dryerbelocatedupstreamofthereceiver.
Forsafetyandconvenience,installinletandoutletshutoff
valvesanddepressurizationvalves.Thesevalvesallowthe
dryertobeisolatedanddepressurizedforservicing.Bypass
pipingmaybeinstalledaroundthedryerforuninterrupted
airowwhenthedryerisserviced.Ifthecompressedair
operationcannottolerateundriedairforshortperiods,install
a second dryer in the bypass line.
Compressedairsystemscommonlyrequirelterstoremove
compressoroils,particulates,condensedliquidsandother
contaminants.Whenanoil-removallterisused,itshould
beinstalleddownstreamoftherefrigerateddryer.At
thislocation,thelifeofthereplaceablelterelementis
prolongedsincesomeoftheentrainedoilisremovedbythe
dryer and drained through the separator.
Piping and Connections
Pipingmustbefurnishedbytheuserunlessotherwise
specied.Connectionsandttingsmustberatedforthe
maximumoperatingpressuregivenonthedryerdataplate
andmustbeinaccordancewithapplicablecodes.Support
allpiping;donotallowtheweightofanypipingtostressthe
dryerorlterconnections.Inletandoutletshutoffvalvesand
avalvedbypassvalvearerecommended.Pipingshouldbeat
leastthesizeoftheinletandoutletconnectionstominimize
pressuredropintheairsystem.SeeEngineeringDatasection
fordryerinletandoutletconnections.
Removing Condensate
Condensatemustbedrainedfromthedryertopreventre-
entrainment. The dryers are equipped with automatic drain
valves and internal drain hoses up to the drain connections
on the dryer cabinets. The user must install a separate
dischargelineatthedrainconnectiontocarryoffcondensate
to an environmentally approved condensate collection/
disposalsystem.Pipingorcoppertubing1/2inchorlarger
isrecommendedforcondensatedischargelines.Installthe
drain lines so that condensate can be seen as it drains.
Electrical Connections
ThedryersareconstructedaccordingtoNEMAType1
electrical standards. Field wiring must comply with local and
nationalre,safetyandelectricalcodes.Installationmust
beinaccordancewiththeNationalElectricalCode.Conrm
that your line voltage is the same as the voltage listed on the
dryerdataplate.RefertoFigure1forelectricalschematics.
Operation of dryers with improper line
voltage constitutes abuse and could affect the dryer
warranty.

4
INSTRUMENTATION
ON/OFF Switch
ThedryerisequippedwithanON/OFFswitchonthefront
panel.Alightsignalswhenthedryerison.
Dew Point Indicator
(75 through 150 scfm models)
Alldryersareequippedwithadewpointindicatorwhich
indicatesdryerconditionsasfollows:
Itisnormalforthedewpointindicatortobeintheredzone
whenthedryerisrstturnedonandthenmovetothe
greenzonewhenthedryerreachesitsnormaloperating
temperature.Ifthisindicatorisintheredzoneduring
normaloperation,turnthedryerofftoavoidcompressor
damage.RefertotheFieldServiceGuideforadditional
information,orcallyourlocaldistributor.
Dryer System Monitor (DSM)
(200 through 5000 scfm models)
TheDryerSystemMonitor(DSM)hasLEDtypedewpoint
temperature indicators and electronic drain valve timing
controls.Whenthedryerisrunningnormally,thegreenLEDs
willilluminate.IftheredLEDisilluminated,thereisaneed
forthedryer'soperatingconditiontobechecked.
NOTE:Whenthedryeristurnedon,allLEDswillbe
illuminated.Allow15minutesfortheredandyellowLEDsto
beextinguished.
Theautomaticdrainvalvecontrolsallowtheperiodofdrain
openingtobesetfrom0.5secondsto9secondsanddrain
valveclosedtimetobesetfrom0.5minutesto9minutes.
Whenthe"PUHTOTEST"buttonispushed,thedrainvalve
opensandremainsopenfortheadjusted"open"time.
Automatic Drain Valve
Allmodelsareequippedwithanelectronicdrainvalvethat
automaticallydischargescondensatefromthedryer.Drain
valve operation is controlled by a drain valve timer. The drain
openingcanbesetfrom0.5secondsto9seconds.Thedrain
cyclecanbesetfrom0.5minutesto9minutes.
Models75through150havethetimermounteddirectlyon
thedrainvalve.Formodels200through500,drainvalve
adjustmentsaremadeontheDryerSystemMonitor(DSM).
Electronic Drain Valve Adjustment
Tominimizeairlosses,thedrainvalvecontroltimeshould
beadjustedtoopenthedrainportjustlongenoughto
dischargeaccumulatedcondensate.Setthedrainvalve
operatingtimesothatonlyairdischargesattheendofthe
open period. Recommended initial settings are a 1 to 2
seconddrainopeningand30secondsdrainclosedtime.If
liquidstilldischargesastheportisclosing,setthetimerfora
shorter cycle or a longer opening.
timershouldbeadjustedtoopenthedrainportjustlong
enoughtodischargeaccumulatedcondensate.Setthetimer
sothatonlyairdischargesattheendoftheopenperiod.
Dew Point Indicator
(Models RNP75, RNP100, RNP125 and RNP150)
3 4
2
1
5
Drain Timer
(Models RNP75, RNP100, RNP125 and RNP150)
1. Adjustmentknobforthedrainvalveopentime.The
values on the dial correspond to the time in seconds
that the valve is open in each drain cycle.
2. Adjustmentknobforthedrainvalveclosedtime.The
values on the dial correspond to the time in minutes
that the valve is closed in each drain cycle.
3. LEDtoindicatewhenthedrainvalveisopen.
4. Draintestbutton.Whenthebuttonispressed,the
drainvalveopensforthetimecorrespondingtothe
setting on item 1.
5.LEDtoindicatewhenthedrainvalveisclosed.

5
2
1
10 9 8
7
6
543
Dryer System Monitor
(Models RNP200, RNP250, RNP300, RNP400 and RNP500)
1. On/OffSwitch:Pressthetopoftheswitch(I)toturn
thedryeron.Pressthebottomoftheswitch(O)to
turnthedryeroff.Whenthedryerison,theswitchis
illuminated.
2. ThisisagraphicsymbolfortheAirDryercompressor.
Itsimplyindicatesthattheswitchisusedtoturnthe
compressor(dryer)onandoff.
3. Partofthegraphicforthedewpointtemperature
scale.Thesnowflakeindicatesthelow(cold)endof
the scale.
4. Mainportionofthegraphicforthedewpoint
temperaturescale.Greenindicateslow,orange
indicatesmedium,redindicateshigh.
5. Partofthegraphicforthedewpointtemperature
scale. The thermometer indicates the high (hot) end
ofthescale.
6. Six(6)LEDsthatindicatedewpointtemperature
accordingtothegraphicscaleabovetheLEDs.The
colorofeachLEDmatchesthecoloredbars
7. Adjustmentknobforthedrainvalveopentime.The
values on the dial correspond to the time in seconds
that the valve is open in each drain cycle.
8. Adjustmentknobforthedrainvalveclosedtime.The
values on the dial correspond to the time in minutes
that the valve is closed in each drain cycle.
9. LEDtoindicatewhenthedrainvalveisopen.
10. Draintestbutton.Whenthebuttonispressed,the
drainvalveopensforthetimecorrespondingtothe
settingonitem7.

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.

7
Weekly Maintenance
Inspecttheambientairlterweeklyandcleanitifnecessary.
Dirtyairlterscauselossofefciencyandmayresultin
damage to the product.
AirFilter—Cleanaccumulateddustanddirtfromairlter
weeklyasrequired.
1. Openambientltersidedoor.
2. Removeairlterbyslidingupwards.
3. Washwithsoapandwaterandallowtodrybefore
reinstalling.
NOTE:Donotusesolventstocleanlter.
4. Reinstallairlterandrightsidedoor.
5. Ifthelterisdamaged,replaceitwithanewlter.
Contact your distributor.
Donotoperatethedryerwithouttheambient
airlter.Permanentcondenserdamagemayresult.
Monthly Maintenance
Forair-cooledcondensers,itisrecommendedtoinspect
thecondensercoilsmonthly.Ifnecessary,removedirtor
otherparticleswithcompressedairfromanOSHA-approved
airnozzlethatlimitsitsdischargepressureto30psig
(2.1kgf/cm²).
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. Removes hoses that connect the drain valve to the drain
valve strainer.
6. Removescrewandwasherfromfrontofthedrainvalve.
7. 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.
8. Removecoilxingnutandspringwasherfromtopof
solenoid coil housing.
9. Liftsolenoidcoilhousingoffsolenoidcoreinvalvebody.
10. 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.

8
FIELD SERVICE GUIDE
Problemsmostfrequentlyencounteredwithrefrigerated
dryersarewaterdownstreamofthedryerandexcessive
pressuredrop.Mostcausescanbeidentiedandremedied
byfollowingthisguide.
Closedrefrigerationsystemsarepotentially
dangerous.Workontherefrigerationsystemmustbedone
onlybyacompetentlicensedrefrigerationmechanic.Donot
releaseuorocarbonrefrigerantstotheatmosphere.Donot
dischargeliquidrefrigerantsintooordrains.Refrigerant
vaporsmayaccumulateinlowplaces.Inhalationofhigh
concentrationsmaybefatal.Allrefrigerantsmustbe
recoveredperEPArequirements.
Donotsmokewhenarefrigerationleakissuspected.Burning
materialsmaydecomposerefrigerants,formingatoxicgasor
acidsthatmaycauseseriousinjuryandpropertydamage.
Beforedismantlinganypartofthedryerorcompressed
airsystem,completelyventtheinternalpressuretothe
atmosphere.
PROBLEM SYMPTOM POSSIBLE CAUSE REMEDY
Water Downstream of
Dryer
Refrigerantcompressornot
running.
Lossofpowertodryer Checkpowersupply,fusesand/orbreakers.Check
forlooseconnections.
Dryerturnedoff. CheckOn/Offswitchposition.
Dryeroverloaded. Conrmthatinletow,inlettemperatureandinlet
pressurearewithinacceptablerangeofdryer.
Condenser clogged with debris. Check/cleanambientairlterandcondenser.
Fan motor inoperative Checkfanmotoroperation.Replaceifnecessary.
Ambienttemperaturetoohigh. Verifyambienttemperaturethroughoutday.
Highpressureswitchactivated
(models 200 to 500 only)
Pressmanualresetbuttontoswitchtoresetbutton.
Compressor overheated. Turndryeroff.Contactlocaldistributor.
Compressordefective. Turndryeroff.Contactlocaldistributor.
Nocondensatedischargingfrom
dryer.
Drainstrainerclogged. Clean drain strainer.
Drainvalveinoperative. Check/rebuilddrainvalve.
DraintimerorDSMinoperative. ConrmthereispowertothetimerorDSM.
ReplacetimerorDSM,ifnecessary.
Drainsolenoidinoperative. Conrmthereispowertothecoil.Replacecoil,if
necessary.
Condensatedischargingfromdryer. Incorrectdraintimersetting. Adjustdraintimer-increaseopentimeand/or
decrease closed time.
Liquidwaterenteringdryer. Aftercoolerdrainvalvemalfunction. Check,repairaftercoolerdrainvalve.
Excessive Pressure
Drop Across Dryer
Frozencondensateinevaporator. Incorrecthotgasbypassvalve
setting.
Contact local distributor.
Inletairpressurelow. Upstreamrestrictioninairsystem. Checkallupstreamairsystemcomponents(valves,
regulators,etc.)
Dryerundersized. Excessivecompressedairow. Resizedryer.
Dew Point Indicator
Out of Green Zone
Dryeroverloaded. Conrmthatinletow,inlettemperatureandinlet
pressurearewithinacceptablerangeofdryer.
Condenser clogged with debris. Check/cleanambientairlterandcondenser.
Loosesensorconnection. ConrmgaugeorDSMsensoristightlyconnected
to dryer tubing.
Defectivegauge,DSMorDSM
sensor.
Replacegauge,DSMorDSMsensor.

9
ENGINEERING DATA
MODEL 75 100 125 150 200 250 300 400 500
SPECIFICATIONS
Rated Capacitya-(scfm) 75 100 125 150 200 250 300 400 500
Inlet/OutletConnections-(inches) 3/4 1 1 1 1-1/2 1-1/2 1-1/2 2 2
Dimensions
Height-(inches) 20.1 20.6 20.6 20.6 30.0 30.0 29.9 29.9 31.5
Length-(inches) 19.7 28.3 28.3 28.3 35.4 35.4 37.4 37.4 41.3
Width-(inches) 18.9 13 13 13 16.1 16.1 19.3 19.3 23.2
PowerSupply-(V/Ph/Hz) 115/1/60 115/1/60 115/1/60 115/1/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60
RefrigerantCompressorCapacityc-
(BTU/hr) 3,414 3,953 3,953 5,406 8,787 13,969 13,969 17,574 22,151
InputPower-(kW) 0.72 0.74 0.76 1.11 1.42 1.98 2.05 2.50 3.06
RefrigerantTypebR-134a R-134a R-134a R-134a R-134a R-134a R-134a R-134a R-134a
aRating conditionsare100°Finlettemperature,100psiginletpressure,100%inletrelativehumidity,100°Fambienttemperature@60Hz.PerCAGIADF-100.
bRefertodryerdataplateforrefrigerantcharge.
cCompressorcapacity@35°Fevaporatingtemperature,130°Fcondensingtemperature.
MINIMUM - MAXIMUM OPERATING CONDITIONS ALL MODELS
Min.-Max.InletAirPressure(compressedairatinlettodryer) 10-232psig
Min.-Max.InletAirTemperature(compressedairatinlettodryer) 40°F-120°F
Min.-Max.AmbientTemperature 40°F-110°F
NOTE:Continuousoperationintheabovemaximumandminimumoperationconditionsisnotallowable.
SUCTION PRESSURE REFRIGERANT PRESSURE SWITCH SETTINGS
Refrigerant Without Airflow Models75to500
R-134a 31 psig Fan Cycle Control
FanPressureSwitchSetting
R-134a
Cut-In Cut-Out
199psig 142 psig
Models200to500
RefrigerantCompressorControl
HighPressureSwitchSetting
SensorLocation R-134a
Cut-Out Cut-In
CompressorDischarge 298psig
Manual Reset 201 psig

10
ELECTRICAL SCHEMATICS
Figure 1b
100 to 125 scfm models
115V / 1PH / 60Hz
ON/OFF SWITCH
WITH RUNNING LAMP
R
25
CS CR
1
36
PTC STARTER F. P. S.
FAN
MOTOR
T
ELECTRONIC AUTO DRAIN VA LV E
OVERLOAD
PROTECTOR
COMP.
1PH
SM
C
Figure 1a
75 scfm models
115V/1PH/60Hz
5
6
ON/OFF SWITCH
WITH RUNNING LAMP
R
2
F. P. S
MS
C
COMP.
1PH
OVERLOAD
PROTECTOR
PTC STARTER
FAN
MOTOR ELECTRONIC
AUTO DRAIN
VALVE
T

11
ELECTRICAL SCHEMATICS
Figure 1d
200 to 500 scfm models
Figure 1c
150 scfm models
115V/1PH/60Hz
R
ON/OFF SWITCH
WITH RUNNING LAMP
ELECTRONIC
AUTO DRAIN
VALVE
Starting
Capacitor
S
R
COMP.
1~
C
P.R-b
Potential
Relay
FAN
MOTOR
Overload
protector
(OLP) P. R
T
F. P. S
H.P. S
* FUSE FOR
AUTO DR
SENSORELECTRO AUTO
DRAIN VALVE
* FUSE
U1
RL1
DSM
SOL
21
21
24
3
F1(2A) ON/OFF SWITCH
WITH RUNNING LAMP
SRT
0V
R
440V
T
380V
TR 150VA
115V
0V
MC1 11
460V/3Ø/60Hz
F. P. S
31
21
24 24
1234567
oo
o
o
o
o
o
R
MC1
REF. COMP.
With internal T.P
M
FAN MOTOR
With internal T.P

12
Figure 2a
75 to 150 scfm models
AIR AND REFRIGERANT FLOW SCHEMATICS
DRAIN VALVE
STRAINER
FAN PRESSURE SWITCH
FILTER/DRYER REFRIGERANT
COMPRESSOR CONDENSER
FAN BLADES
& FAN MOTOR
AIR FLOW
CHILLER
(REF TO AIR HEAT EXCHANGER)
REHEATER
(AIR TO AIR HEAT EXCHANGER)
COMPRESSED AIR INLET
COMPRESSED AIR OUTLET
S
MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER
ELECTRONIC AUTO
DRAIN VALVE WITH TIMER
CAPILLARY TUBE
HOT GAS
BY-PASS VALVE
F. P. S

13
Figure 2b
200 to 500 scfm models
AIR AND REFRIGERANT FLOW SCHEMATICS
DRAIN VALVE
STRAINER
FILTER/DRYER REFRIGERANT
COMPRESSOR CONDENSER
FAN BLADES
& FAN MOTOR
AIR FLOW
CHILLER
(REF TO AIR HEAT EXCHANGER)
REHEATER
(AIR TO AIR HEAT EXCHANGER)
COMPRESSED AIR INLET
COMPRESSED AIR OUTLET
S
MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER
ELECTRONIC AUTO
DRAIN VALVE
HIGH PRESSURE SWITCH
HOT GAS BY-PASS VALVE
CAPILLARY TUBE
FAN PRESSURE SWITCH
H.P. SF. P. S

14
REPLACEMENT PARTS
Item Description 75 scfm 100 scfm 125 scfm 150 scfm
1RefrigerantCompressor 3149274 3161249 3161249 3161250
2Condenser(air-cooled 1283269 3161253 3161253 3161254
3 Fan Blades 3041954 3041954 3041954 3041954
4FanMotor 3161257 3161257 3161257 3161257
5FilterDryer 3161259 1283273 1283273 1283273
6SolenoidValveAssembly 3161263 3161263 3161263 3161263
7 SolenoidValveTimer 3161264 3161264 3161264 3161264
8SolenoidValveStrainer 3161265 3161265 3161265 3161265
9 DINSocket 3161266 3161266 3161266 3161266
10 On/OffSwitchwithRunningLamp 3161244 3161244 3161244 3161244
11 DewPointIndicator 3041493 3041493 3041493 3041493
12 HotGasBypassValve 3161268 3161268 3161269 3161270
13 HeatExchanger 3161275 3161276 3161277 3161277
14 AmbientAirFilter — 3161260 3161260 3161260
15 FanPressureSwitch 3161274 3161274 3161274 3161274
16 MaintenanceKits RNPJMK3 RNPJMK3 RNPJMK3 RNPJMK3
Item Description 200 scfm 250 scfm 300 scfm 400 scfm 500 scfm
1RefrigerantCompressor 3161251 3093041 3137014 3090708 3161242
2Condenser(air-cooled) 3161255 3161255 3161256 3161256 3161245
3 Fan Blades 3041955 3041955 3041957 3041957 3041957
4FanMotor 5000011 5000011 5000011 5000011 5000011
5FilterDryer 1283273 1283273 1283369 1283369 1283369
6SolenoidValveAssembly 3161248 3161248 3161248 3161248 3161248
7 SolenoidValveTimer — — — — —
8SolenoidValveStrainer 3146976 3146976 3146976 3146976 3146976
9 DINSocket 3161267 3161267 3161267 3161267 3161267
10 On/OffSwitchwithRunningLamp 3161244 3161244 3161244 3161244 3161244
11 DryerSystemMonitor(DSM) 3161282 3161282 3161282 3161282 3161282
12 HotGasBypassValve 3161271 3161271 3161271 3161272 3161272
13 HeatExchanger 3161278 3161279 3161280 3161281 3161246
14 AmbientAirFilter 3161261 3161261 3161262 3161262 3161247
15 FanPressureSwitch 3161274 3161274 3161274 3161274 3161274
16 HighPressureSwitch 3161273 3161273 3161273 3161273 3161273
17 MaintenanceKits RNPJMK4 RNPJMK4 RNPJMK5 RNPJMK5 RNPJMK6

15

AUTHORIZATION FROM THE SERVICE DEPARTMENT IS NECESSARY BEFORE MATERIAL IS
RETURNED TO THE FACTORY OR IN-WARRANTY REPAIRS ARE MADE.
WARRANTY
Themanufacturerwarrantstheproductmanufacturedbyit,whenproperlyinstalled,operated,applied,andmaintainedinaccordancewithproce-
duresandrecommendationsoutlinedinmanufacturer’sinstructionmanuals,tobefreefromdefectsinmaterialorworkmanshipforaperiodas
speciedbelow,providedsuchdefectisdiscoveredandbroughttothemanufacturer’sattentionwithintheaforesaidwarrantyperiod.
Themanufacturerwillrepairorreplaceanyproductorpartdeterminedtobedefectivebythemanufacturerwithinthewarrantyperiod,provided
suchdefectoccurredinnormalserviceandnotasaresultofmisuse,abuse,neglectoraccident.Normalmaintenanceitemsrequiringroutinereplace-
mentarenotwarranted.Thewarrantycoverspartsandlaborforthewarrantyperiodunlessotherwisespecied.Repairorreplacementshallbemade
atthefactoryortheinstallationsite,atthesoleoptionofthemanufacturer.Anyserviceperformedontheproductbyanyoneotherthanthemanu-
facturermustrstbeauthorizedbythemanufacturer.
Unauthorizedservicevoidsthewarrantyandanyresultingchargeorsubsequentclaimwillnotbepaid.Productsrepairedorreplacedunderwarranty
shallbewarrantedfortheunexpiredportionofthewarrantyapplyingtotheoriginalproduct.
Theforegoingistheexclusiveremedyofanybuyerofthemanufacturer’sproduct.Themaximumdamagesliabilityofthemanufactureristheoriginal
purchasepriceoftheproductorpart.
THEFOREGOINGWARRANTYISEXCLUSIVEANDINLIEUOFALLOTHERWARRANTIES,WHETHERWRITTEN,ORAL,ORSTATUTORY,ANDISEXPRESSLYINLIEU
OFTHEIMPLIEDWARRANTYOFMERCHANTABILITYANDTHEIMPLIEDWARRANTYOFFITNESSFORAPARTICULARPURPOSE.THEMANUFACTURERSHALL
NOTBELIABLEFORLOSSORDAMAGEBYREASONOFSTRICTLIABILITYINTORTORITSNEGLIGENCEINWHATEVERMANNERINCLUDINGDESIGN,MANUFAC-
TUREORINSPECTIONOFTHEEQUIPMENTORITSFAILURETODISCOVER,REPORT,REPAIR,ORMODIFYLATENTDEFECTSINHERENTTHEREIN.
THEMANUFACTURER,HISREPRESENTATIVEORDISTRIBUTORSHALLNOTBELIABLEFORLOSSOFUSEOFTHEPRODUCTOROTHERINCIDENTALORCONSE-
QUENTIALCOSTS,EXPENSES,ORDAMAGESINCURREDBYTHEBUYER,WHETHERARISINGFROMBREACHOFWARRANTY,NEGLIGENCEORSTRICTLIABILITY
INTORT.
Themanufacturerdoesnotwarrantanyproduct,part,material,component,oraccessorymanufacturedbyothersandsoldorsuppliedinconnection
withthesaleofmanufacturer’sproducts.
Warranty Period
Partsandlaborfortwo(2)yearsfromthedateofshipmentfromthefactory;heatexchangersarecovered(partsonly)foranadditionalthree(3)
years(totalofve[5]).Onunitsthatmanufacturerrequestsbereturnedtothefactory,aonetimeremoval/reinstallationlaborallowanceasnotedin
theServiceWarrantyPoliciesandProceduresHandbookwillapply.Freighttothefactoryfromtheinstallationsiteandtotheinstallationsitefromthe
factorywillbepaidbythemanufacturer;meansoftransportationtobespeciedbymanufacturer.
SERVICE DEPARTMENT: [phone]
Curtis-Toledo, Inc.
1905 Kienlen Avenue, St. Louis Missouri 63133
phone: [phone] fax: [phone] email: [email protected]
WWW.FSCURTIS.COM