EN 14336 2025.docx

EN14336June2025EuropeanstandardNormeeuropeenneEuropaischenormICS91.140.10SupersedesEN14336:2004EnglishVersionHeatingsystemsinbuildings-InstallationandcommissioningofwaterbasedheatingandcoolingsystemsSystemesdechauffagedanslesbatiments-InstallationetCommissionnementdessystemesdechauffageaeauHeizungsanlageninGebauden-InstallationundAbnahmederWarmwasser-HeizungsanlagenThisEuropeanStandardwasapprovedbyCENon21April2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040BrusselsRef.No.EN14336:2025E©2025CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.PageContentsEuropeanforeword5Introduction61 Scope82 Normativereferences83 Termsanddefinitions84 Installation114.1 Preparationfortheinstallation114.1.1 Documentation114.1.2 Sitepreparation124.2 Inventoryandinspectionofincominggoods124.3 Handlingofmaterials124.4 Storageofmaterials124.5 Installationofcomponents134.5.1 General134.5.2 Heatgeneration134.5.3 Heatdistribution-pipingandpumps144.5.4 Heatemission.154.5.5 Controlandmonitoring154.5.6 Thermalinsulation164.6 Siteinspectionsduringtheinstallationwork164.7 Changesduringtheinstallationprocess165 Pre-functionalchecks175.1 Objective175.2 Generalcheck175.3 Equipmentandcomponentcheck175.4 Electricalchecks186 Pressuretest186.1 General.186.2 Hydraulictest206.3 Pneumatictest206.4 Tightnesstest216.5 Loadtest226.5.1 Hydraulictest226.5.2 Pneumatictest227 Systemcleaning227.1 General227.2 Simpleanddynamicflushing237.2.27.2.37.37.4SimpleflushingDynamicflushing.Mechanicalcleaning8 Systemfillingandventing268.1 General268.2 Frostprecautions278.3 Useofchemicals278.4 Fillingreport279 Balancingwaterflowrates2810 Functionaltesting2910.1 General2910.2 Testingandsettingsofindividualdevices2910.3 Testingthesequencesofoperation2911 Handover3011.1 Objective3011.2 Documentsforoperation,maintenanceanduse3011.3 Instructionsonoperationanduse3011.4 Handoverdocumentation30Annex A (informative)Listoftestandcontrolactivities32A.lGeneral32A.2Contentsofthelist32A.3Samplelistoftestandcontrolactivities34Annex B (informative)Installationsiteinspection358.1 General358.2 Installationsiteinspectionreport358.3 Samplesiteinspectionreport36Annex C (informative)PRE-COMMISSIONINGCHECKS37C.lGeneral37C.2Equipmentandmajorcomponentscheck-lists37C.2.1Pump37C.2.2Boiler38C.2.3Heatpump40C.2.4Fan-coilunit41C.2.5Controlvalves42C.3Electricalchecks43Annex D (informative)Pressuretesting46D.lGeneral46D.2Samplepressuretestreport46Annex E (informative)Systemcleaning49E.lGeneral49E.2Procedures49E.2.1Flushing49E.2.2Chemicalcleaning51E.2.3Samplecleaningreport52Annex F (informative)Fillingandventing54F.lGeneralinformation54F.2Samplefillingreport54Annex G (informative)Balancingofwaterflowrates56G.lGeneral56G.2Simplesetting56G.2.1Concept56G.2.2Samplespecificationandreport57G.3Balancingwithmanualbalancingvalvesandflowmeasurement58G.3.1General58G.3.2Theiterativemethod59G.3.3Theproportionalmethod59G.3.4Thecompensatedmethod59G.3.5Computeraidedbalancingmethod60G.4Balancingwithflowmeasurementandself-actingbalancingvalves60G.4.1Differentialpressurecontroller60G.4.2Flowlimiter60G.5Balancingbytemperaturemeasurements60G.5.1General60G.5.2Concept61G.5.3Method61G.6Flowaccuracy61G.7Balancingreport62Annex H (informative)Functionaltesting64H.lGeneralinformation64H.2Functionaltestingofindividualappliancesandcontrols64H.3Globalcheck65Annex I (informative)Samplehand-overchecklist67Bibliography68EuropeanforewordThisdocument(EN14336:2025)hasbeenpreparedbyTechnicalCommitteeCEN/TC228"Heatingsystemsandw