Owner manual

6
Remote Humidity Control (Wall Mounted)
When a remote Humidistat is utilized, set the unit mounted humidistat to the “OFF” position.
Thiscontrolprovidesthesamecontrolfunctionsasabovebutwithgreaterprecisionandcanbelocatedinthespace
foreasieraccess,andmayincludedadditionalfeatures.Availableasanaccessoryitemthesecontrolsmayhave
differentfeatures;refertoinstructionsincludedwiththecontrol.
Typical System Operation Sequence
Upontherelativehumidityexceedingthehumidistatsetpoint,normallybyapproximately3%,thehumidistatwill
energizethedehumidicationandaircirculationcomponentsoftheDH95(note15minutedelayonsomeelectronic
humidistats).IftheDH95systemisconnectedandinterlockedwithanexistingHeating/Airconditioningsystem,this
systemscirculationfanwillalsobeenergized.TheDH95willcontinuetooperateuntilthehumiditylevelisreducedto
thesetpointselectedonthehumidistatandthenwillcycleoff.Duringthiscycle,theaircirculatedthroughtheDH95
systemwillbelteredanddehumidied.Ifanoutsideventilationairducthasbeeninstalled,freshairwillbeltered
anddehumidiedandintroducedtothespaceduringthiscycle.
Coil Freeze Protection (Auto Defrost)
Thedehumidicationcoil(evaporator)isequippedwithalowtemperaturefreezethermostat;ifthecoiltemperatureis
reducedtothepointoficebuildup,thisthermostatwillopenthecompressorcontrolcircuitwhileallowingthefanto
continuingrunning.Oncethecoilhasreturnedtonormalconditionsthecontrolwillcloseandallowthecompressor
tore-start.Theprevailingconditionsofthereturnair,temperatureandhumidity,willdeterminethelengthofthis
cycle.
Maintenance
High Efficiency Air Filter
TheDH95issuppliedwitha2”pleatedhighefciencyairlter.The2”lterisratedMERV11,andismoreefcient
thanstandardairltersandisabletocatchmuchsmallerparticlesthatcanaggravateallergies.Operatingthe
unitwithadirtylterwillreducedehumidiercapacityandefciencyandmaycausethecompressortocycleoff
andonunnecessarily.Undernormaloperatingconditions,thelterwilllastapproximately6months.However,in
highparticulateconcentrationsmorefrequentreplacementsmayberequired.Itisrecommendedthatthelterbe
inspectedregularlyfortherstthreetofourmonthstodeterminetheloadingandcorrectreplacementintervals.Your
installationcontractorshouldbecontactedforassistance.
Toaccesstheairlter,removethelteraccesspanelfromtheFrontorBacksideoftheunit,marked“FilterAccess”.
Theltershouldbereadilyvisibleandcanberemovedbypullingitstraightoutoftheunit.
Replacementlterscanbepurchasedfromyourinstallationcontractorororderedfromthefactoryifalocal
representativeisnotavailable.DO NOToperatetheunitwithoutthelter,orwithalesseffectivelterthanoriginally
supplied.Theheatexchangecoilsinsidetheunitcouldbecomecloggedandrequiredisassemblytoclean.FAILURE
TO MAINTAIN SERVICE AND CLEAN FILTERS WILL VOID WARRANTY.
Oiling & Lubrication
Thefanmotorisfactorylubricatedandsealed,andnofurtheroilingisrequired.Therearenoothercomponents
requiringtheadditionoflubricants.
Optional Fresh Air Ventilation (OSA)
Ifyoursystemincludestheoptionalfreshairsystem,itwillhaveanoutsideairintake.Checkandcleanthescreenon
theoutdoorfreshairintakeseasonally.Theintakescreenmustremainclearofanydebristhatcouldrestrictairow
intothesystem.Thisintakeshouldneverbelocatedwhereundesirablefumes,gasesorodorsmakebetakenupby
theintake.Inallcaseslocalcodesprevailastothelocationoffreshairintakes.