WEG CFW900 - Installation and Connection; Mechanical Installation; Environmental Conditions; Positioning and Mounting

English
INSTALLATIONANDCONNECTION
3INSTALLATIONANDCONNECTION
ThischapterprovidesinformationoninstallingandwiringtheCFW900. Theinstructionsandguidelineslistedin
thismanualshallbefollowedtoguaranteepersonnelandequipmentsafety,aswellastheproperoperationofthe
inverter.
3.1MECHANICALINSTALLATION
3.1.1EnvironmentalConditions
✓
NOTE!
Thisproductisdesignedforuseinshelteredplacesonly.
Avoid:
Directexposuretosunlight,rain,highhumidity,orsea-air.
Inflammableorcorrosivegasesorliquids.
Excessivevibration.
Dust,metallicparticles,andoilmist.
Environmentconditionsfortheoperation:
Themaximumratedambienttemperatureatthebackoftheinverter(aroundtheheatsink)is:
-10°Cto45°C(14°Fto113°F)forframeEmodels.
-10°Cto50°C(14°Fto122°F)forotherframes.
Operationattemperaturesabovetheratedoneispossible;however,inthesecases,theoutputcurrentmustbe
derated,asdescribedin
Section8.2.
Themaximumratedambienttemperatureonthefrontoftheinverteris60°Cforallmodels,exceptforthemodels
indicatedin
Section8.1.4.
Humidity:from5%to95%non-condensing.
Maximumaltitude:upto1000m(3,300ft)ratedconditions.Operationatanaltitudeofupto4000mispossible,
however,inthesecases,theratedoutputcurrentandsupplyvoltagemustbederatedasper
Section8.2.
Pollutiondegree:2(accordingtoEN50178andUL61800-5),withnon-conductivepollution.Condensationshall
notoriginateconductiontheaccumulatedresidues.
3.1.2PositioningandMounting
Consulttheinverterweightatthe
Section8.4.
Mounttheinverterintheuprightpositiononaflatandverticalsurface.FramesA...Ccanbeinstalledhorizontally
aslongastherecommendationsofFigure3.3.
Externaldimensionsandfixingholespositionaccordingtothe
Figure3.1.RefertoSection8.4forfurtherdetails.
Firstmarkthemountingpointsanddrillthemoutingholes.Then,positiontheinverterandfirmlytightenthescrews
inallfourcornerstosecuretheinverter.
Minimummountingclearancesrequirementsforpropercoolingaircirculationarespecifiedin
Figure3.2andTable
3.3.
InvertersofframesA...Dcanbearrangedside-by-sidewithnoclearancerequiredbetweenthem.Inthesecases,
theupperventilationopeningsmustbefreeforaircirculation,thatis,itisnotpossibletousetheIP21andULtype
1kits.
CFW900|11