CRS2500 TECHNICAL GUIDE Model # CRS-2500 220v 1PH, 50/60 HZ Description CRS2500IDECcoolersaredesignedforoutdoorinstallation.Onlyutilityandductconnectionsarerequiredatthe pointofinstallation. FieldinstalledThermostatisrequired(Singlephaseonly)
CRS2500 TABLE OF CONTENTS Description.......................................................... 1 Table of Contents..................................................... 2 Features and Benefits.................................................. 3 Specifications................................................. 4 Physical Data........................................................ 5 Capacity and EER Performance........................................6-7 Primary Airflow Fan Curve............................................. 8 Wiring Diagram..................................................... 9 Dip Switch Settings.................................................... 10 Critical Dimensions................................................... 11
CRS2500 Features and Benefits: Advancedtechnologyachieves 120%+wetbulbdepression effectiveness. LowerInstallationCostInstallation timeandcostsarereducedbyeasy powerandcontrolwiring connections.thesmallbase dimensionmeanslessspaceis requiredonthegroundorroof UtilityConnectionsMadeEasy Electricutilityknockoutsare providedthroughthesideofthe unit.utilityconnectionscanbe madequicklyandwithaminimum amountoffieldlabor.anelectrical disconnectswitchmustbeinstalled (notincluded). ControlinterfaceusesanyUniversal Thermostatwitha O terminal. Auxiliaryfunctionalityisincluded. LowOperatingSoundLevelThe crossdirectionalairflowcarriesthe normaloperatingnoisedownand awayfromthesurroundings.the rigidfilterpaneleffectivelyisolates motorsound. MistEliminatorpreventswater carryover Watersump Stainlesssteelnon corrosivepan Factorywiredandtestedpriorto shipment. DurableFinish 18Gauge galvanizedsteel(g90)cabinet powdercoatedwithaneutralcolor. Primaryairaddsmoderatehumidity comparedtoasinglestagecooler anditisnotasdryasaconventional airconditioner. Providesexcellentventilationand maybeusedinasimilarmannerasa wholehousefanwhenconditions permit(optionaloutdoorthermostat requiredseebypass1inwiring diagram). Automaticdailydryoutcycle Automaticwaterrefreshcycleto preventtdsbuildup
CRS2500 Specifications: GENERALUnitsshallbefactoryassembled,singlepackageddesignedforoutdoorinstallation. Theunitsshallbefactorywired,pipedandtestedpriortoshipment.Allwiringshallbecolor coded. UNITCABINETUnitcabinetshallbeconstructedof18gaugegalvanized(G90)steelwith powdercoatedfinish.cabinetpanelsshallbe"large"size,easilyremovableforservicingand maintenance.thewetsectionshallbeconstructedfrom304stainlesssteel. BLOWERASSEMBLYFanshallbeadirectdrive,constanttorque1hpmotor.Thefanwheel shallbeofthenonoverloadingbackwardinclinedcentrifugaltype.wheelsshallbestatically anddynamicallybalancedtooperatesmoothlythroughouttheentirerangeofoperation. Airflowdesignshallbeconstantairvolume.Bearingsshallbesealedandpermanently lubricatedforlongerlifeandnomaintenance.fanassemblyshallbeaccessibleviaremovable servicepanel. POWERCONTROLSshallbemountedinacontrolbox,allowingeasyaccessfortroubleshooting andmaintenancewithoutaffectingthenormalsystemoperation. MECHANICALACCESSUnitshallhavelarge,easilyremovablepanels,coveringelectrical controlsandmechanicalareas,allowingeasyaccessforanynecessarymaintenanceor servicing. PUMPSshallbemounted,pipedandtestedpriortoshipmentandincludewaterlevel protection. ELECTRICALREQUIREMENTSAllunitpowerwiringshallenterunitcabinetatasinglefactory providedlocation.separateopeningsshallbeprovidedforthecontrolwiring. NOTE: Wedonotrecommendtheuseofanychemicalsonourpads.Followingtheguidelines inour CoolingPadChecklist shouldhelptocontrolmostproblems.ifyoustillhave problems,youmayconsiderusinganammoniumchloridebasedproductlikeevap100, Greenshield,SaniClean,orBearcat.DONOTUSECHLORINE,BROMINE,CLOROX,OR PRODUCTSBASEDTHESECHEMICALS.
CRS2500 Physical Data: Capacity: EER, COP: Nominal CFM: Refer to capacity chart using design conditions Refer to capacity chart using design condition 2500 CFM, 4250 m 3 /h @ 0.5 wc external static pressure DATA CRS-2500 DIMENSIONS Length 47.25 1200 mm Width 42.50 1080 mm Height 46.50 1182 mm WEIGHT Operating 900 lb 425 KG Dry 500 lb 235 KG CONNECTIONS Water Inlet ¾ Male NPT Drain ¾ Male NPT PRIMARY BLOWER Quantity 1 KW/ HP 0.80 KW/ 1 HP Speeds 1 Type Centrifugal Plug Fan Direct Drive Wheel Size 450 mm Power 220V 1Ph 50/60HZ PUMPS Quantity 3 Submerged, 1 Self Priming hp Submerged 1/30 HP and 1/15 HP & Self Priming 1/3 HP Power 220V 1Ph 50/60 HZ Direct Media Type Rigid Cooling Media Dimensions 23.5 x 30 x 6 Secondary Fan Type Axial KW/hp 0.37 KW / ½ HP Blade Size 18 450mm Secondary Media Type Rigid Cooling Media Dimensions 23.5 x 30 x 12 Heat exchanger Type Tube and Fin Water Coil
CRS2500 Capacity Chart *Capacityinformationcalculated@SeaLevel29.9PSI&78 o F(25.5 o C)IndoorTemp o F
CRS2500 EER Chart *EERinformationcalculated@SeaLevel29.9PSI&78 o F(25.5 o C)IndoorTemp o F
CRS2500 Primary Airflow Fan Curve:
CRS2500 WIRING DIAGRAM BypassCircuits: Bypass1(Economizermode)ConnectoptionalOutdoorthermostattoturnoffpumpsandsecondary fanwhenoutdoorconditionspermit. Bypass2(IndoorHumidity)AttachoptionalHumidistattooperateprimaryairsupplyinINDIRECTonly coolingwhenindoorhumidityisabovesetpoint. Bypass3(Freezeprotection)Ifunitisoperationalduringfreezingconditions,attachanoutdoor thermostathere.waterinletsolenoidwillcloseandthereservoirwilldrainifoutdoortemperature reachessetpoint.externalsupplylinerequiresitsownfreezeprotection. AUX(Heat)24VACconnectionforheatercontrol. Note:BothPrimaryandSecondarycirculationpumpsincludewaterlimitswitchprotection.
CRS2500 DIPSWITCHES
CRS2500 CRITICALDIMENSIONS