Nederman HV Control Panel EX Series - Page 23

HV Control Panel
23
EN
Filter Cleaning Range Default Used
Pilotinterlock Yes/No No
Interval2byMainDPS Yes/No No
Upstreamdamperdelay
before
0-99 s 5
Upstreamdamperdelay
aer
0-99 s 10
Upstream damper at
clean
Range Default Used
Upstreamdamperdelay
before
0-99 s 5
Upstreamdamperdelay
aer
0-99 s 10
Pulsemeisthemethecleaningvalveisopen.
Pauseismebetweenthepulsesinlter1and2(and3and4ifapplicable).
Ifthepauseis0,therearesimultaneouspulses.
Interval1istherunningmebetweencleaningcycles,fromtheendofonecycletostartof
thenextcycle.
Interval2isonlybevisiblewhenitisselectedbypushingthebuonanditshows“Yes”
ingreen.AlltheInterval2itemsinthedisplayareinvisibleifthePilotinterlockisselected
sinceitisnottobeusedifthePilotinterlockisselected.
TheInterval2isacvatedbythemainlterDPSaerinterval2delay.Whenused,Interval
2istypicallyshorterthanInterval1.TheDPSsignalhasaresponsemeof30seconds
(Adjustable0-99seconds).
WhenchangedtoInterval2,acleaningsequenceisiniated.Wheninterval2hasexpired,
thestatusofDPSischecked.Ifthereisanacvesignal,thentheintervalischangedto
Interval1andacleaningsequencestarts.
FiltercleaningispreventedandcannotstartduringaTVFDemptyingsequence.An
emptyingmustbedelayedfor10secondsaeracleaningsequencehasended.
Pilot interlock - No cleaning when Pilot signal acve
•
No:Filtercleaningismecontrolledduringoperaon,i.e.,thedefaultseng.
• Yes:Filtercleaningispreventedunlthepilotsignalhasdisappeared.
CleaningdoesnotstartiftheaccumulatedrunmehasnotpassedInterval1.Butifthe
MainlterDPShasindicatedahighdP(fortheResponseme,asforInterval2),then
cleaningstartsatthefollowingPilotsignaldeacvaon.
Upstream damper
Anisolaondampermaycloseduetothecleaningpulse.Byclosinganupstreamdamper
beforethecleaningpulseanddelayingitsopeningunlaerthesequence,theisolaon
valveremainsopen.