Climate Wizard CW-H10 - Page 17

INSTALLATION
15
SeeleyInternationalPtyLtd
ControlSchemes
Watermanagementsystem
Pre-wetcycle
(Pre-wetrunsthepumpsfor3minutestoensuretheCoresarefullysaturatedwhenCOOL modeisactivated).
Defaultsetting-Pre-wetcycleenabled
Pre-wetduration3minutes
Duringpre-wetcyclethefanrunsonlowspeed.
AfterPre-wet,fanwillresumerunningatWallControlspeedsetting
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PreWetalwaysoccurswhenCOOL modeisselectedafteraMainspowerinterruption.
IfCOOL modeisselectedandtheMainspowerhasnotbeeninterrupted,thenaPreWetwilloccuriftheDrain
hasnotbeenactivatedsincethelasttimeCOOL modewasselected.
Pumpcontrol
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WhenCOOL selected,fanandpumpwillstart30secondsafterwaterlevelhasreachedthebottomprobe
AfteraPre-wetthepumpthencyclescontinuously: ONfor1minute
OFFfor8minutes
Fanspeedisslowedduringwateringcyclestopreventwatertake-offfromthecoresenteringeithertheexhaustair
streamorthecooledairstreamandthebuildingducting.
Inletsolenoidvalvecontrol-water
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Opens9secondsafterCOOL modestarts(inordertogiveDrainValvetimetoshut).
Opensifwaterlevelisbelowthebottomprobe.
Remainsopenuntilwaterlevelreachestopprobe.
WillalsoopenatanytimethatSalinityControldemandsfreshwater.
Incorporatessoftswitchingtoavoidwater-hammer.
Tank(reservoir)drainvalvecontrol
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Whenpowerswitchedontothecooler,theDrainValveopenstocheckoperationoftheValve.
DrainValveremainsopenuntilCOOL modeselected.
WhenCOOL modeselectedtheDrainvalveshuts.
DrainValveopenswhen:
COOL modeswitchedOFFandtankdraindelayisactivated.DrainValveremainsopenuntilnextCOOL mode
activated.
OR
SalinityControldemandsthetank(reservoir)tobedrained.(RefertotheSalinityControlsectionfollowing)
SalinityControl
ChlorinatorControl
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WaterConductivitysensing:
Measureswaterconductivityfor10secondswithineveryminute
Whenconductivityexceedstheuppersetpointthewaterinletsolenoidvalveisopenedtoallowfreshwaterentry.
Monitoringofconductivityiscontinuousduringthiscycle.
Inletsolenoidvalveremainsopenuntilwaterlevelreachestopprobe,thenitcloses
Ifwaterreachestopprobe,butconductivityisstilltoohigh,adraincyclestarts
Drainvalveopensuntilwaterlevelfallsbelowbottomprobe,thenvalveclosesimmediately,andinletsolenoid
valveopenstorefillthereservoir.
Willsenseconductivitydownto9uS(about4ppm)(ie:rainwater)
WaterUsagesensing:
Numberoftimesthatreservoirisfilledfrombottomprobetotopprobeiscounted.Whenthiscountreaches8,a
draincycleisinitiated.
Drainvalveopensuntilwaterlevelfallsbelowbottomprobe,thenvalveclosesimmediately,andinletsolenoid
valveopenstorefillthereservoir.
Pumpsenabledtorunatanytimeduringthesalinitydraincycle.
TheChlorinatorisapairofspeciallytreatedplates.Whenenergisedandsubmergedinwater,electricalcurrentflows
betweenthem,generatingchlorine. Therearetwo(2)setsofChlorinatorplatesintheClimateWizard.Chlorineisknown
tokillbacteriainwatersuppliesandtheClimateWizardChlorinationsystemisdesignedtominimisebacterialevelswithin
thecooler.
ChlorinatorsareactiveatalltimesthatthecoolerisinCOOL mode, ANDthewaterlevelisabovethebottom
probe, ANDthepumpsarenotrunning(8minutesinevery9minutes), ANDthesalinitycontrolisnotsensing(50
secondsinevery60seconds).
859736-A AU1007