
H03620‐00.B5.EN–2011/11
9
ensurenoforeignbodiesobstructthefangrid.
cleantheevaporatorwithasoftbrushandafreshwaterjet(disconnectthepowercable),donottwistorbend
themetalblades,thentocleanthedischargepipeofthecondensatesinordertoevacuatetheimpuritieswhich
couldblockit,
cleantheoutsideoftheunitwithasolvent‐freeproduct.AspecificPACNETcleaningkitisavailableasan
optionalextra(see§4.3),
checkthatthewatercondensationflowsoutproperlyduringtheoperationofthedevice.
checktheproperoperationoftheregulator,
checkelectricalcomponents,
checkthatallmetalelementsaregrounded,
checkthetighteningandconnectionsofelectriccablesandthecleanlinessoftheelectricalcompartment.
4.2Additionalrecommendations
inrelationtothePressureEquipmentDirective(PED‐97/23/CE)
4.2.1Installationandmaintenance
theunitmaynotbeinstalledclosetocombustiblematerials,ortheairductinletofanadjacentbuilding.
withsomedevices,itisessentialtofitprotectiongridsiftheunitisinstalledinanareawithuncontrolledaccess.
duringinstallation,troubleshootingandmaintenance,pipesmaynotbeusedassteps:thepipecouldbreak
undertheweight,spillingrefrigerantandpossiblycausingseriousburns.
whenservicingtheappliance,thecompositionandstateofheatcarryingfluidmustbechecked,aswellasthe
absenceofanyrefrigerant.
duringtheannualunitsealingtestinaccordancewithapplicablelegislation,thehighandlowpressureswitches
mustbecheckedtoensurethattheyaresecurelyfastenedtothecoolantcircuitandthattheycutoffthe
electricalcircuitwhentripped.
duringmaintenancework,ensuretherearenotracesofcorrosionoroilaroundcoolingcomponents.
beforebeginningworkonthecoolingcircuit,stopthedeviceandwaitforafewminutesbeforefittingthe
temperatureandpressuresensors.Someelementssuchasthecompressorandpipingmayreachtemperatures
inexcessof100°Candhighpressureswiththeconsequentriskofseverescalding.
4.2.2Troubleshooting
allsolderingworkmustbecarriedoutbyasomeonequalifiedtodoso.
replacementpipesmustalwaysbemadeofcopperincompliancewithstandardNFEN12735‐1.
leakdetection;pressuretest:
-neveruseoxygenordryair,riskoffireorexplosion,
-usedrynitrogenorthemixtureofnitrogenandrefrigerantindicatedontheinformationplate,
-thetestpressureforboththehighandlowpressurecircuitsmustnotexceed42bar.
thehighpressurecircuitpipesaremadeofcopperandhaveadiameterequaltoorgreaterthan1’’5/8.A
certificateasindicatedin§2.1incompliancewithstandardNFEN10204willberequestedfromthesupplierand
filedininstallationtechnicaldocumentation.
technicaldatarelativetothesafetyrequirementsofthevariousapplicabledirectivesmustbeindicatedonthe
informationplate.
Thisdatamustberecordedintheinstallationinstructionsforthedevicewhichareincludedintheinstallation
technicalfile:model,code,serialnumber,maximumandminimumOT,OP,yearofmanufacture,EClabel,
manufacturer’saddress,refrigerantandweight,electricalparameters,thermo‐dynamicandacoustic
performances.
4.3Availableaccessories
NamePACNETWinteringcover
Representation
ItemcodeWMA03491W20HOUSSEPFIRST