Last Updated – Apr. 2025Code-Compliant Planning and Installation GuideComplying with Eurocodes 0-9 and VDI 6012Ascent 1.1long side clamping1- Introduction -Clenergy PVezRack Ascent 1.1 is a low ballast, south\/north, east-west facing solution for PV installation on flat roofs. With a special design and a maximum tilt angle of 10 and 15, Ascent 1.1 is suitable for module clamping on its long side.This installation manual must be read carefully prior carrying any installation. This manual provides the following content:(1) Supporting documentation for building permit applications relating to PV-ezRack Ascent 1.1 PV Module Mounting System,(2) Planning and installation instructions.Structural integrity of the PVezRack Ascent 1.1 parts will be compliant with the Eurocodes and VDI 6012 standard when installed correctly. Make sure to comply with the relevant Occupational Health and Safety regulations when carrying any installation. Also, make sure to comply with other relevant State or Federal regulations.Always check you are using the latest version of this Installation manual. To do that, contact your local distributor or contact Clenergy via the following email: tech.euuk@clenergy.com otherwise.IntroductionComplying with all applicable local or nationalbuilding codes, including any that may supersede thismanual;Ensuring that PV-ezRack and other products areappropriate for the particular installation and theinstallation environment;Using only PV-ezRack parts and installer-suppliedparts as specified by the PV-ezRack project plan.(substitution of parts may void the warranty andinvalidate the letter of certification);Recycling: Recycle: according to the local relativestatute.Removal: Reverse installation process.Ensure that there are no less than two professionalsworking on panel installation.Ensure the installation of related electrical equipmentis performed by qualified personnel.Ensuring safe installation of all electrical aspects ofthe PV array.Ensuring that the roof, its rafters\/purlins, connections,and other structural support members can supportthe array under building live load conditions;Ensuring that screws to fix interfaces have adequatepull-out strength and shear capacities as installed;Maintaining the waterproof integrity of the roof,including selection of appropriate flashing;The installer is solely responsible for:List of contentsIntroduction Tools & Component listSystem OverviewInstallation Instructions 134 7Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.02- Introduction -Planning & DesignThe Ascent 1.1 flat roof system is designed to be used on flat roofs with a roof inclination of up to 5 degrees. The system uses ballast weight (paving slabs or similar) to withstand wind loads and stabilise the system. The required amount of ballast depends on the wind load which is specific to the location, building height roof area, system layout and roof surface. For support or requests for ballast calculations please contact tech.euuk@clenergy.com.The friction coefficient value used in the ballast calculation must be determined on site with both wet and dry tests Please refer to the Clenergy guidance note friction coefficient test.For Ascent 1.1 installations clamping on the short side \/ corner clamping of the module it is important that the maximum permissible loads of the module manufacturer and clamping positions are checked.Before installation of the PV system, it is important that the roof area is free of dirt, snow and ice. Clarification that the PV system does not impede the roofs’ ability to drain rainwater. It should be clarified before any installation of a project that the roof structure can take the additional weight and loads of the PV system, ballast and the effects of wind and snow. It is important that the correct building protection matt is specified for the roof covering.Consideration should be given to the position of the PV array. Wind loads are much higher in edge and corners zones. It is good practice to keep a minimum distance of 600-1200mm away from these roof areas. Planning of suitable maintenance gaps \/ walkways should be applied to the design to access the PV system for any maintenance works in the future. Special attention needs to be given to any LPS (lightning protection System) on the building and guidance should be taken from a professional and the relevant National and international guidance notes regarding separation distances between the PV system and the building LPS.Wind Load AssessmentGuidelines for the calculation of ballast can be taken from EN 1991-1-4 Eurocode 1 and the specific National Annexes.Suction and pressure coefficients have been determined through wind tunnel testing at the IFI Institute.ApplicationRoof pitch: maximum 5.Maximum solar panel dimensions (listed in page 5): – When using 2240mm base rail: length 2278mm, width 1047mm, height 28-40mm.- When using 2450mm base rail: length 2278mm, width 1151mm, height 28-40mm.Array set up: maximum length 23m, maximum width 20m, please also keep at lease 20mm gap between arrays.Design Standards: BS EN 1990:2002 Basis of Structural Design DIN EN 1991-1-4 Eurocode 1: Actions on structures – Part 1-4: General actions – Wind actions DIN EN 1991-1-3 Eurocode 1: Actions on structures – Part 1-3: General actions – Snow loads VDI 6012 Blatt 1.4 Integration of decentralised and regenerative energy systems in buildingOngoing maintenance O &MThere should be regular system of maintenance for all PV systems. It is good practice to have a sufficient annual maintenance schedule to check the condition of the PV system, and check for any loose connections or movement of a system and that the ballast blocks are stable, this is particularly relevant in the event of abnormal weather conditions such as a storm or excessive high winds.Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.03Tools and ComponentsToolsScrew DriverTapeDrive Bit String & Marker PenTorque SpannerComponentsFL-ACV11\/G\/10FL-ACV11\/G\/15 Front Leg 10\/15RL-ACV11\/G\/10Rear Leg 10RL-ACV11\/G\/15Rear Leg 15 SEB-ACV11\/100 Start and End Base, Length 100mmCB-ACV11\/EW\/200CB-ACV11\/EW\/250Connection Base, length 200 and 250mmMB-ACV11\/EW\/ XXXX Main Base East-west, length 2450 and 2240mmBB-ACV11\/Z\/XXXXMZ-Shaped Ballast Bar, length 1300mmBB-ACV11\/Z\/2450M\/V2Connection Rail, length 2450mmEZ-PM-ACProtection MatEZ-PM-AC\/RBProtection Mat with EPDMEZ-GL-U\/12Rialto Grounding Lug, with 12mm U-opening- Tools and Components -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.04System OverviewOverview of PV-ezRack Ascent 1.1 long side clamping (take 10 as an example) – System Overview — East-west Facing Start and End Base Front Leg 10 Main Base, East-west Ballast Bar Rear Leg 10 Connection Base Protection Mat Connection Rail Grounding Lug Row Spacing (mm)BC2240 200\/2502450 200\/250Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.05- System Overview -Setting Angle\/ Module Width (mm) Actual Angle\/ Mounting Hole Selection Min.Max. East-west2450mm Base 2240mm Base10 9901013 11.5 251019 1047 11.1 361053 1082 10.7 4Not available1087 111610.3 5Not available1120 115110.0 6Not available15 9901013 16.6 251019 1047 16.0 361053 1082 15.5 4Not available1087 111615.0 5Not available1120 115114.5 6Not availableThere are 8 mounting holes in main base and marked with numbers. Please refer to the table below to identify the correct hole based on the module dimensions.Determine the mounting hole of Main BaseInstallation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.06Installation InstructionMark system start point of the Base and lay out the Start and End Base, Front Leg, Main Base according to the planning documents. Please lay out all components from East to West direction. The sequence is the same in each row and always ends with Start and End Base.Connect the Base with the Front Leg using the method shown in below figures. Place the Base to roof after installation is done.Click!Base Rail Installation- Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.07Protection Mat InstallationInstall Protection Mat under Base where Front Leg and Rear Leg are installed.Protection Mat under Front LegPress the Base down to securely fit into Protection Mat shown in the right figures.- Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.08- Installation Instruction -Protection Mat under Rear LegRear Leg InstallationPress the Base down to securely fit into Protection Mat.Slide Protection Mat to fit into the hole in the base until you hear a clicking sound.Notes:Normally the Protection Mat should be installed into hole 1.Notes:Attention to the installation position of Rear Leg which is selected in Page 5.Install the Rear Leg to the Base using the method shown in below figures.Click!- Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.09Click!Connection Rail InstallationInstall Connection Rail on the Base near the position of Front Leg.Using one set of bolt to fix Connection Rail on each Base.Overlap two adjacent Connection Rail. And using one set of bolt to fix Connection Rail on Base.Please check on page 5 to identify the correct hole based on the module dimensions- Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.010Using uninterrupted Connection Rail to connect all Base.INCORRECTBallast PlacementThere are two different ways to place ballast blocks.Opinion 1: On BasePlace the ballast blocks centrally on the Base.Notes: please place the ballast blocks under the modules first if the space is enough.Opinion 2: On Ballast BarPlace the ballast blocks centrally on Ballast Bar and fasten with 4 sets of T-head bolt and nut with a torque of 10 N.m.- Installation Instruction — Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.011PV Module InstallationAdjust the position of module clamp in the Front Leg and Rear Leg shown in the right figures.Put the module on the Front Leg and Rear Leg. Leave an approx. 20 mm gap between arrays.Tighten the hexagon socket screw with a torque of 14 N.m.- Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.012It is required to install one Grounding Lug per row of base. Fix the Grounding lug on the end of base. Make sure the inner face of side opening of Grounding lug is closely attach to the base as shown in right figure. Strip earthing cable if needed, insert the conductor into the Grounding lugs.The recommended torque of the bolt as shown on right figure. Grounding Lug Installation- Installation Instruction — Installation Instruction -Installation Guide \/ Ascent 1.1 Code-Compliant Planning and Installation Guide V1.0A Clenergy Technologies CompanyWilly-Brandt-Strae 23, 20457 Hamburg, Germany Phone: +49 (0) 40 3562 389 00Email: sales@clenergy.comWeb : www.clenergy.comClenergy Deutschland Gmbh@Clenergy@Clenergy_global@ClenergyClub@Clenergy@ClenergyGlobal \/ @ClenergyClub \/ @ClenergyAUS \/ @ClenergyThailand<\/p>\n","protected":false},"featured_media":0,"template":"","download_language":[86],"download_doc_type":[296],"download_product":[111,116,253,493],"download_search_cat":[],"download_tag":[],"class_list":["post-15108","download","type-download","status-publish","hentry","download_language-d-eu","download_doc_type-installation-guide","download_product-download-roof","download_product-download-flat-roof","download_product-all","download_product-pv-ezrack-ascent-1-1-download-roof"],"yoast_head":"\n