P.O. Box 9792
●
Boardman, Ohio 44513
PH: (855)629-4648
●
Fax: (330)758-3314
www.spartanscientific.com
P.O. Box 9792
●
Boardman, Ohio 44513
PH: (855)629-4648
●
Fax: (330)758-3314
www.spartanscientific.com
Installation How It Works
Application and
Installation Guide
Model CRDV/S Application and
Installation Guide
Model CRDV/S
2/2 WAY SHUT
OFF VALVE
CRDV/S
UNIT OUTLET TO DRAIN
OR SEPARATOR
6FT CORDSET
2/2 WAY SHUT
OFF VALVE
OPTIONAL #8-32
THREAD FOOTPRINT
6FT CORDSET
CRDV/S
UNIT
OUTLET TO DRAIN
OR SEPARATOR
OPTIONAL #8-32
THREAD FOOTPRINT
2/2 WAY SHUT
OFF VALVE
2/2 WAY SHUT
OFF VALVE
1. The CRDV/S is an automatic device and will cycle with the presence of water at the inlet and one time initially to indicate
that it is working. It is important to make all pressure connections prior to making electrical connections as the CRDV/S
automatically cycles without warning.
2. Drain the tanks, dryers, coolers or any device that is the producer of the condensate of any water and air pressure prior to
CRDV/S installation.
3. It is necessary to mount the CRDV/S below the vessel it is draining, as the condensate is gravity fed to the inlet port of the
CRDV/S.
4. Connecttheunit’sinletporttothecondensateline;followtheowarrowontheCRDV/S,(itisadvisabletoinstallaballvalve
or ball valve strainer to facilitate future service of your CRDV/S).
5. Connect the exhaust port to an air-oil separator or equivalent device.
6. Connect the wall plug to a convenient wall connection and you are ready to go.
NOTE: Spartan Scientic strongly recommends the use of a strainer prior to the inlet of the CRDV/S to lter out any
particulate. If no strainer is used particulate build up may occur causing a minor leak. To remedy this condition, it is necessary
to apply a sustained purge of 5 to 10 seconds to clear the debris.
HORIZONTAL MOUNTING VERTICAL MOUNTING
OPEN POSITION CLOSED POSITION
Normal Mode:
WhentheCRDV/Sisrstconnectedtoelectricity,theunitgoesintoaoneminuteinitializationmodeduringwhichtheoverride
button is non-functional and the following sequence occurs:
L1LED=Power(grn)/Valve(yel)
L2LED=Detect(grn)/Alarm(yel)
L1red/grn L2red/grn @1Hz(chatterwarning) for10seconds.
L1red/grn L2off @10Hzandvalvechatters for2seconds
L1 grn L2 off Pause for 3 seconds
L1yel L2off Valveon(shortvaporpurge) for1second
L1grn/red L2off @1Hz (sensorwarmup) for35seconds
L1 grn L2 off – unit ready for /use.
Aftertheinitializationmode,theunitwillimmediatelyenternormalmode.
Ascondensateisgenerated,thewaterandefuentfallsbygravitythroughthepipingtotheinletoftheCRDV/S.
AshortvaporpurgeoccurscontinuallytoinsurethereisnotrappedairinthelinestopreventwaterfromreachingtheCRDV/S.
The time interval between vapor purges is automatically adjusted based on the need and can vary between 2 minutes and 2 hours.
NothingelsehappensuntiltheCRDV/Ssolid-statesensorsensesthepresenceofcondensate.Atthattimetheelectronicssends
thesignaltoenergizethesolenoidvalve,whichopensandexhauststhecondensatefromthepneumaticsystem.Aftera1second
purgeintervalthevalvede-energizesandthesensornolongersenseswaterattheinletport.TheCRDV/Sthengoesdormantfor
aminimumof35secondsafterwhichtheunitwillstandreadytopurgecondensateagain,onlywhenitissensed.Ascondensate
once again builds up, the sensor senses the presence of condensate and the purge cycle continues.
High Flow Mode:
If, during normal mode, there is a high production of condensate, the CRDV/S function will change to accommodate the
increasedneedtoremovewaterfromthesystem.Asinnormalmode,theCRDV/Sremainsdormant,sensingforcondensate.
If there is a high amount of condensate at the inlet port, so much so that the 1 second purge will not remove it all from the port,
the CRDV/S “learns” and opens for a 2 second purge interval. The unit then goes into a 35 second wait cycle after which the
CRDV/S, if it continues to sense condensate, continues to re-cycle adding 1 second to the purge interval each time. The sensor
goes into alarm mode when the purge interval gets to 6 seconds. During alarm mode the CRDV/S repeats the purge cycle adding
1 second to the purge interval each time until the sensor stops sensing condensate. When the sensor runs free of condensate the
CRDV/S returns to normal mode. If during alarm mode the purge interval gets to 16 seconds, the unit will enter an emergency
shutdownmodetoconserveairandwillashbothLEDsata1Hzrateuntilpowerisremovedandreapplied.
Electrical and Manual Override:
The CRDV/S is equipped with both a manual override and an electrical override. The manual override is the green push button
found on the side of the valve at the back of the unit. Pressing this button allows for drainage of the condensate line without the
needforelectricity.Theelectricaloverrideisabuttonfoundatthefrontoftheunitwhichenergizesthesolenoidanddrainsthe
condensate line. Both overrides are momentary contact, spring return.
One 1 second purge cycle every 24 hours
Thereisone1secondpurge/chattercycleevery24hoursjusttoensurethatthecondensatelinesareclearandefuentisowing
to the CRDV/S.
Indicator Light Chart
