FScurtis RNP150 - INSTRUMENTATION; ON;OFF Switch; Dew Point Indicator; Dryer System Monitor (DSM)

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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
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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.