Joule Solar Collector Heating Systems
Contents
1. Figure 21 Dual Storage System Schematic Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAI Part Three Design Data 0 40 80 120 160 ee o O 2 40 60 80 100 Statute miles Figure 22 Basic Wind Velocity ref Irish National Annex to Eurocode 1 3 1 STRENGTH AND STABILITY When mechanically load tested in accordance with EN 12975 2 2006 the Joule collectors achieved the following results oule Navitas On Roof Collector The Joule Navitas Collector was tested to 5319 Pa positive pressure i e downward pressure and 4308 Pa negative pressure i e wind load upward pressure without failure occurring Using the safety factor of 1 5 for positive pressure Section 5 9 1 of EN 12975 2 2006 and a safety factor of 2 for negative pressure Section 5 9 2 of EN 12975 2 2006 the Joule Navitas Collectors can be deemed to withstand a positive pressure of up to 3546 Pa and negative pressures of up to 2154 Pa Joule VisSolis In Roof Collector The Joule VisSolis Collector was tested to 5319 Pa positive pressure i e downward pressure and 3532 Pa negative pressure i e wind load upward pressure without failure occurring Using the safety factor of 1 5 for positive pressure and a safety factor of 2 for negative pressure the Joule VisSolis Collectors can be deemed to withstand a positive pressure of up to 3546 Pa and negative pressures of up to 1768 Pa Jo2. EPDM seal Mineral Wool Insulation q Figure 3 Joule VisSolis In Roof Collector 2 2 MANUFACTURE 2 2 1 The Joule Acapella Solar Collectors are manufactured by Jiangsu Sunrain Solar Energy Co Ltd in China The management systems of Sunrain have been assessed and registered as meeting the requirements of 1SO9001 2000 Under conditions set out by the Solar Keymark Certification Sunrain Solar Energy are registered and continuously monitored by Fraunhofer ISE Germany Manufacture consists of fabrication and assembly of the heat pipes absorbers manifolds and evacuated tubes Sunrain Solar Energy Co Ltd operate a 100 inspection of their products which include vacuum and stress testing of the evacuated tubes and pressure testing of the copper HP tubes and manifolds The solar collector mounting frame is manufactured using profiled aluminium vertical and horizontal sections See Figure 4 The manifold is made from pressed aluminium The header is insulated using polyurethane PU foam The heat pipe condenser bulb 24mm diameter x 90mm length is nickel coated to prevent welding of heat pipe and heat pipe socket during high temperatures operation Certificate No 10 0353 Joule Solar Collector Heating Systems C9 NSAI 2 2 2 The Joule Navitas On Roof and VisSolis In Roof Solar Collectors are manufactured by Gasokol GmbH in Austria The management systems of Gasokol have been assessed and registered as meeting th
3. building planning regulations The solar collector must not be left exposed to solar radiation when the solar loop and manifold have been drained or prior to filling Collectors left exposed in a dry state must be covered to prevent possible long term damage The solar collector system should be commissioned in low light or by covering the collector array until it has cooled down to a safe working temperature ideally in the morning when the solar loop should be coolest Fixings used with the Joule Solar Collectors must comply with Clause 4 11 and 5 9 of I S ICP 2 2002 All tiles adjacent to the collectors should be mechanically fixed in place Flashings used with the systems must comply with Clause 4 12 of I S ICP 2 2002 2 4 2 Pre installation Sizing of the Solar Heating System Minimising the risk of stagnation must be considered by the installer when sizing a solar heating system The system must not be oversized but must comply with the requirements of Part L of the Building Regulations 1997 to 2009 The following steps should be taken to correctly size a solar heating system e Determine the daily hot water demand e Calculate the hot water heat requirement e Calculate the storage volume e Size the required collector area e Size the system components Sizing of Safety Equipment Component sizes are relative to the volume of liquid in the system the Joule Technical Design Guide should be consulted for each sys
4. flush hose connected to the flush valve Point B e Valve Cis turned to the closed position Horizontal e The solar fill and flush pump is switched on e Transfer fluid is circulated through the system for a minimum of 60 minutes Valve C is intermittently opened and closed to remove air pockets leaving it in the horizontal closed position when completed After 60 min valve at point B is closed and the circulation pump is allowed to pressurise the system to 4 bar When 4 bar pressure is achieved valve at point A is closed and the solar fill and flush pump is switched off All connections and joints are checked with the 4 bar pressure maintained to ensure there are no leaks or weeps The system pressure of 4 bar is maintained for a minimum period of 45 mins If any weeps or leaks become evident the system pressure is relieved and affected joints resealed When system maintains pressure without leaks or weeps valve at point B is opened to allow system pressure to drop to 2 bar Valve at point C is opened to allow for normal system operation The pump station is turned on following instructions described in the Certificate holders installation manual The manual pump speed is set to 1 and the flow rate checked The pump speed is adjusted up until the flow rate is above the required flow rate Using the valve at point D see Figure 18 the flow rate is regulate back down to the flow rate required The fill
5. The system Should be decommissioned in low light ideally in the morning when the solar loop should be coolest or by covering the collector array until it has cooled down to a safe working temperature 2 6 RETROFITTING REPLACING The Joule range of collectors can be retrofitted to existing roofs During the pre installation survey Special attention must be given to the condition of the existing roof structure and its ability to take the additional applied loadings of the collector as described in the Joule Energy Solutions Risk Assessment and Site Survey assessment procedures The required slates tiles are removed The panels are fixed as described in Section 2 4 of this Certificate and the slates tiles are then re integrated as described Should the collectors require replacing the flashings tiles are removed as required in reverse order to their installation collectors replaced and the flashing reinstated Certificate No 10 0353 Joule Solar Collector Heating Systems CINSA 1 SOLAR COLLECTOR STANDARD SOLAR PUMP STATION 2 EAST WEST SOLAR PUMP STATION DUAL STORE SOLAR PUMP STATION 3 SOLAR CONTROLLER 18L EXPANSION VESSEL 4 24L EXPANSION VESSEL _ 36L EXPANSION VESSEL 5L TEMP REDUCING VESSEL 5 8L TEMP REDUCING VESSEL HEAT DUMP TO BE INSTALLED ONLY IF REQUIRED 05340 SV10 R586SY001 R586SY001 R586SY001 35200074 VESY002 VESY004 VESY005 VESY010 VESY011 VESY012 2700019
6. and the solar panels Stainless steel plumb screws for fixing the flashings to the frame of the collector are supplied with the flashing kit No additional lead sealants or fixings are required Full installation details of the Tile Slate flashings for single and multiple collector panels are included in the Certificate holders installation manual See Figure 7 and 8 2 4 6 Roof Penetrations The Certificate holder supplies the Glidevale Gl vent tile Figure 9 for the Joule Acapella and Navitas on roof collectors for carrying pipes through the roof into the attic space This vent tile is manufactured from ABS Acrylonitrile Butadiene Styrene and is AA fire rated when tested to BS 476 3 2004 Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs The vent tile will have a design life equivalent to the Joule Solar Collector Heating System and must be inspected as part of routine maintenance on the system Replacement of the Glidevale Gl vent tile will require draining and refilling the system Figure 9 Glidevale G1 Vent Tile Where pipes penetrate the interior of the attic space e g through the roof underlay or plasterboard for the Joule Acapella Navitas on roof and VisSolis in roof systems all resulting penetrations must be sealed in accordance with the Certificate holders installation manual before completing the work When installed in accordance wit
7. glass tubes or flat panels and sharp object Shall not be used to open the tube boxes Associated components also supplied should be stored in a clean dry frost free environment until ready for installation Parts should be inspected for damage on arrival to site and any damages or losses reported to the Certificate holder Current Health and Safety legislation apply to these products with regard to safe lifting and manual handling Certificate No 10 0353 Joule Solar Collector Heating Systems ES NSAI Model o Acapella Navitas VisSolis O O A AAA Evacuated Tube On Roof Panel In Roof Panel 1 8mx0 058m Tube length 2 1m 1 x1 GEAR x 2 1m 1 x1 07m w x x outer dia 0 106m h 0 122m h Absorber shape Cylindrical Flat TA Flat Plate Gross Surface Area E i A Efficiency Constants for G 8000W m no 0 734 no 0 781 no 0 765 Aperture Area a WIM K 1 529 a W m K 3 976 ai W m K 3 320 1 a2 W m2K 0 0166 a2 W m2K 0 014 a2 W m2K 0 014 a CEEE E Coating ALN SS ALN Cu Highly Selective Highly Selective outer tube Polyurethane mix mix mix Y mo zero loss collector efficiency a heat loss coefficient and az temperature dependence of heat loss coefficient values from tests carried out in accordance with I S EN 12795 2 2006 Fraunhofer Institute Test report KTB Nr 2007 07 en for the Acapella collector AlT Report project No 2 04 00327 1 0 2 04 00312 1 0 1 for the Navi
8. impact and the effect on mechanical strength stability and durability were assessed 1 The manufacturing process was examined including the methods adopted for quality control and details were obtained of the quality and composition of the materials used 111 Site visits were conducted to assess the practicability of installation and the history of performance in use of the product Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAN 5 1 National Standards Authority of Ireland NSAI following consultation with NSAI Agr ment has assessed the performance and method of installation of the product process and the quality of the materials used in its manufacture and certifies the product process to be fit for the use for which it is certified provided that it is manufactured installed used and maintained in accordance with the descriptions and specifications set out in this Certificate and in accordance with the manufacturer s instructions and usual trade practice This Certificate shall remain valid for five years from date of issue so long as a the specification of the product is unchanged b the Building Regulations 1997 to 2007 and any other regulation or standard applicable to the product process its use or installation remains unchanged c the product continues to be assessed for the quality of its manufacture and marking by NSAI d no new information becomes available which in t
9. installed and individual thermal mixing valves fitted to each of the hot water taps 2 4 9 Joule Pump Station Both a single stream and a dual stream Joule pump station are available for use with the Joule Solar Collector Heating Systems The flow rate required on a system is typically 1 litre minute per square metre installed Therefore a 2 16 litre pump station will be sufficient for systems up to 12m providing pipework diameter head and component losses have been calculated correctly See Table 4 Connections of flow and return pipe work to the pump station are made with the straight compression fittings provided for direct copper connection The Joule pump station must be fixed to a sound surface suitable for holding the weight of the unit and should be in an accessible location and not obstructed or concealed to allow for easy inspection maintenance and or replacement i E 1 min R5865Y001 R5865Y002 R5865Y003 2 4 10 Safety Vessel Connections Pressure Relief Valve PRV Rated at 6 bar the PRV may discharge heat transfer fluid which must be channelled into a container capable of withstanding high temperature discharge and containing 1 5 times the total collector volume The container should be secured so it cannot be removed or spilled All safety control valves should be readily accessible and verifiable in operation particularly during commissioning and maintenance The PRV mus
10. opinion of NSAI Agr ment the Joule Solar Collector Heating Systems if used in accordance with this Certificate can meet the requirements of the Building Regulations 1997 to 2009 as indicated in Section 1 2 of this Agr ment Certificate 1 2 BUILDING REGULATIONS 1997 to 2009 REQUIREMENTS Part D Materials and Workmanship D3 Proper Materials The Joule Solar Collector Heating Systems as certified in this Certificate are comprised of proper materials fit for their intended use see Part 4 of this Certificate D1 Materials amp Workmanship The Joule Solar Collector Heating Systems as certified in this Certificate meet the requirements for workmanship Part A Structure A1 Loading The Joule Solar Collector Heating Systems once appropriately designed and installed in accordance with this Certificate have adeguate strength and stability to meet the requirements of this Regulation see Part 3 of this Certificate Part One Certification E Part B Fire Safety B4 External Fire Spread The Joule Solar Collector Heating Systems will not affect the external fire rating of the roof structure on which they are installed see Part 4 of this Certificate Part C Site Preparation and Resistance to Moisture C4 Resistance to Weather and Ground Moisture The Joule Solar Collector Heating Systems once appropriately designed and installed in accordance with this Certificate will not affect a roof s resis
11. to penetrate the grounds or rafter to a depth Roof Hanger of 120mm Redrill the hole using a 44mm drill bit but only pass through the slate tile with this drill bit Figure 5 Joule On roof Solar Collector Fixing Options Fixing Bolt Roof Hangers The pilot hole needs to penetrate the grounds or rafter to a depth of 120mm The tile slate is then re drilled using a 14mm drill bit to provide a clearance hole for the roof fixing bolts complete with the EPDM weather tight gasket which are then screwed into the rafter pilot holes using two nuts locked against each other Stainless Steel roof hanger The location on the roof where the panels are to be mounted is first selected Tiles are removed at each bracket location positioned In line with rafters at the left and right edges of the array and where the panels adjoin Top mounting brackets must be at least 2 tile rows below the ridge Before fitting the mounting brackets EPDM weather tight rubber plugs are fitted 1 per bottom bracket to protect and seal the tiles See Figure 5 The fixing plate is pre drilled for ease of alignment The plastic Spacers can be used in different combinations to pack the mounting brackets according to the height of the tiles and batten The brackets are loosely screwed to the rafters using 8x80mm coach screws Navitas installation The top and bottom aluminium profiles are fixed to the panel using a self tapping screw located at the pr
12. www nsai ie Certificate No 10 0353 Joule Solar Collector Heating Systems
13. 0 SOLAR CONTROLLER WIRING SCHEMATIC s s1 s2 s2 s3 s3 TT ROOF CYLINDERTOP CYLINDER AOTORISED PROBE PROBE PROBE b PUMP VALVE Figure 19 Standard System Schematic Certificate No 10 0353 Joule Solar Collector Heating Systems Agrement 1 SOLAR COLLECTOR 05340 SV10 STANDARD SOLAR PUMP STATION R586SY001 2 EAST WEST SOLAR PUMP STATION R586SY001 DUAL STORE SOLAR PUMP STATION R586SY001 3 SOLAR CONTROLLER 35200074 18L EXPANSION VESSEL VESY002 4 24L EXPANSION VESSEL VESY004 SOLAR CONTROLLER WIRING SCHEMATIC 36L EXPANSION VESSEL VESY005 5L TEMP REDUCING VESSEL VESY010 5 8L TEMP REDUCING VESSEL VESY011 _112L TEMP REDUCING VESSEL VESYO12 _ 6 SOLAR DIVERTING VALVE 27000190 eee PROBE PROBE Figure 20 East West System Schematic Certificate No 10 0353 Joule Solar Collector Heating Systems Agr ment 1 SOLAR COLLECTOR 05340 SV10 STANDARD SOLAR PUMP STATION R586SY001 2 EAST WEST SOLAR PUMP STATION R5865Y001 SOLAR CONTROLLER WIRING SCHEMATIC DUAL STORE SOLAR PUMP STATION R586SY001 3 SOLAR CONTROLLER 35200074 18L EXPANSION VESSEL VESY002 4 24L EXPANSION VESSEL VESY004 36L EXPANSION VESSEL VESY005 5L TEMP REDUCING VESSEL VESY010 5 8L TEMP REDUCING VESSEL VESY011 12L TEMP REDUCING VESSEL VESY012_ ROOF CYLINDER ererRPrRoOBE CYLINDER BUFFER 6 SOLAR DIVERTING VALVE 27000190 PROBE FRODE ES EMF
14. CI SIB 41 Ra2 me Ri SH AGR MENT BOARD CERTIFICATE NO 10 0353 Joule Energy Solutions Kylemore Parkwest Ballyermot Dublin 10 a Tel 353 0 1 623 7080 Agrement Fax 353 0 1 626 9337 Email eb Joule Solar Collector Heating Systems Le systeme solaire de chauffage Solarheizungssystem NSAI Agr ment Irish Agr ment Board is designated by Government to issue European Technical Approvals NSAI Agr ment Certificates establish proof that the certified products are proper materials suitable for their intended use under Irish site conditions and in accordance with the Building Regulations 1997 to 2009 PRODUCT DESCRIPTION This Certificate relates to the following Joule Solar Collector Heating Systems e Joule Acapella Solar Collector Heating System e Joule Navitas Solar Collector Heating System e Joule VisSolis Solar Collector Heating System Each system is comprised of a solar collector a cylinder pump station control panel expansion vessel connections sloping roof kit antifreeze user amp installation manual and labelling packs The Acapella solar collector consists of an insulated manifold and a row of evacuated solar tubes for on roof applications The Navitas solar collector consisting of aluminium framed flat plate array for on roof applications The VisSolis solar collector consisting of timber frame flat plate array with powder coated aluminium flashing for in roof applications Th
15. D Part L to the Irish Building Regulations The only pipes which should not be insulated are the pipes to the safety vessel as they should allow heat to dissipate when the system is experiencing excessive heat and pressure 2 4 8 Cylinder Consideration should be given to the load bearing requirements of the Cylinder and the space required to house the solar cylinder pump Station and associated expansion vessel valves and pipework with regard to installation inspection and maintenance The Certificate holder supplies the KIWA approved Joule Cyclone Stainless Steel Cylinder or the Joule Copperking Cylinder as part of the Joule Solar Collector System package See Figure 11 In addition other DHW cylinders may be used provided they have NSAI Agr ment Certification for use with this system The Joule Cyclone Cylinder is a Duplex stainless steel twin or triple coil cylinder for use in pressurised or vented systems The Joule Copperking twin or triple cylinder to BS 1566 1 2002 Copper indirect cylinders for domestic purposes Open vented copper cylinders Requirements and test Figurel1 Joule Cyclone amp Joule Copperking Solar Cylinders A twin coil hot water storage cylinder enables energy input from the central heating system to the top half of the tank and energy input from the solar heating system to the bottom half of the tank Cylinder storage size is calculated at twice the household s hot water demand which is e
16. art of the site survey report Any timbers showing signs of damaged or rot must be replaced In high wind load areas identified during the initial assessment survey the truss design should be checked by a Structural Engineer for suitability in relation to the applicable point loads Any resulting modification required shall form part of the Structural Design report and sign off documentation issued by the Structural Engineer This should be completed prior to commencement of works Stainless Steel roof hangers may be used as alternative roof fixings depending on the roof covering Details on the use of roof hangers roof fixings are as follows See also Figure 5 Stainless Steel roof bolt The highest and lowest solar roof fixing bolt locations are first measured type vertical 2180mm type horizontal 1153mm to find the optimal position of the collectors The holes shall be drilled in the middle of the tiles slates so that only one tile slate has to be drilled The line of the top and bottom profile on the roof is marked out using a chalk line and spirit level The distance between the screws is dependant on the location of the rafters or grounds Pilot holes for solar fixing bolts are drilled using a 7mm drill bit Certificate No 10 0353 Joule Solar Collector Heating Systems Flat Solar Panel Aluminum Profile SO Using a 7mm drill bit drill pilot holes for _ Solar fixing bolts the pilot hole needs
17. as collectors are detailed in the Joule Installation Manual e Each Joule Acapella collector mounting frame consists of vertical profiles 3 vertical profiles per 20 30 tubes 2 vertical profiles per 10 tube collectors and horizontal profiles The location of the horizontal profiles may be adjusted as reguired to allow roof bolts or roof hangers to line up with roof slates tiles and roof structure as required The horizontal profiles are locked to the vertical profiles using the L brackets as shown in Figure 4 e The Joule Navitas collectors are supported on upper and lower powder coated aluminium profiles See Figure 5 e The roof is measured to establish the collector or array position In order to minimise suction force caused by wind loads the distance between the outer edge of the roof and the collector should be 700mm about 3 tiles The distance from the roof ridge should be approx 2 tile rows e The existing tiles are slid back and the rafter timbers measured Rafter timbers depending on width may require mechanical fixing of additional timbers either side to be specified by the Certificate holder to ensure the solar connection meets the requirement of I S EN 1995 1 1 2005 Eurocode 5 Design of timber structures General Common rules and rules for buildings Timber adhesive may also need to be applied to ensure an adequate bond between surfaces is achieved An assessment of the condition of the rafter timbers is p
18. ation gaskets shall be used where necessary to ensure bi metallic corrosion does not occur The collectors and fixing bracket systems are designed to cover all Irish wind zones as illustrated in Figure NA 1 in Irish National Annex to Eurocode 1 However in high wind load areas e g at excessive heights or very exposed areas additional roof fixing brackets may be required The advise of the Certificate holder shall be sought in all such instances or if doubt exists See Cl 3 1 of this Certificate for details of the mechanical load testing performed on the Joule range of collectors Certificate No 10 0353 Joule Solar Collector Heating Systems CA C A CA CA ES ee ee ee ee ee M ii ii ee A lk a a a a AA RA a ae Nc hid allo alo hie F E imi ED a Powder Coated Aluminum Profiled Manifold lt Powder Coated Aluminum Connecting L Bracket Powder Coated Aluminum Stainless Steel Roof Fixing Bolt Socket H CE D 4 Ld Powder Coated Aluminum Profiled Horizontal Support Frame Powder Coated Aluminum Profiled Vertical Support Frame 10 TUBE COLLECTOR 20 TUBE COLLECTOR 30 TUBE COLLECTOR Powder Coated Aluminum Tube Footer Bar c w Black Tube Holder Sockets Figure 4 Joule Acapella Solar Collector Mounting Frame 2 4 4 Joule Acapella and Navitas Collectors On Roof Installation The complete procedure for the installation of the Joule Acapella and Navit
19. centre may now be disconnected and the blanking caps replaced on the valves Once commissioning has been completed the information is recorded in the Commissioning Certificate Figure 17 Filling Valves Certificate No 10 0353 Joule Solar Collector Heating Systems Figure 18 Flow Rate Adjustment Final Commissioning Requirements e The installer must complete two copies of the Commissioning Certificate One copy is left with the customer in the User Manual and the second copy is kept by the installer e The installer must complete the Maintenance Log and locate it in a viewable position e g attached to the expansion vessel or pump station e The installer must apply the Product ID label to the controller and the HOT PIPE warning labels x2 to the cylinder flow and return e The installer shall hand over the User Manual to owners and instruct users on all aspects of the documentation and how to effectively use the solar equipment User Manual After commissioning a user manual is given to the homeowner which contains important information about the system The user manual includes a recommended maintenance schedule commissioning certificate full contact details of the installer and guidance on use Decommissioning the System Due to temperatures potentially exceeding 170 C and pressures greater than 6 bar a solar installation should only be decommissioned by a Joule trained and approved installer
20. e drilled centre point of each panel The stainless steel solar bolt connects to this profile using the stainless steel L bracket The L bracket is fixed to the profile using a T head bolt held in place by the profile of the aluminium rail The stainless steel roof hanger connects directly to the aluminium profiles using the T head bolt The X axis position of the bolt or roof hanger may be set according to the installation requirements Acapella installation The stainless steel roof bolts connect directly to the collector frame in the pre drilled brackets The X and Y axis may be set by moving the vertical position of the cross support bars and by sliding the pre drilled brackets left or right The stainless steel L bracket connects directly to the cross support bars The X and Y axis position may be set also by the same method described previously Certificate No 10 0353 Joule Solar Collector Heating Systems CI NSAI amp No Screw amp x 33 mm Angle brackets Screw 6x150 mm Black Rubber Tube For Solar Controller Solar Panel Sensor Flow to the cylinder hot Existing Roof Batons for Holding Roof Slates Tiles Angle brackets This baton may not be used to connect 8 No Screw solar panel to roof using L brackets 8 x 35 mm 3x1 a e Roof Baton For Connection To Solar Panel Only May not be an existing roof baton for holding slates tiles Figure 6 Joule VisSolis Co
21. e requirements of S09001 2000 Under conditions set out by the Solar Keymark Certification Gasokol Gmbh are registered and by annually monitored by AIT Austrian testing center Austria Manufacture consists Of fabrication of the aluminium wooden frames and assembly with the absorbers and insulation glass and seals Gasokol operate a 100 final inspection of their products Quality control checks include measurement within tolerance visual inspection during each stage of the assembly process and pressure testing by the supplier of the absorber to 15 bar 2 3 DELIVERY STORAGE AND HANDLING Joule supply a full package for each solar heating system installation which includes the collectors cylinder pump station expansion vessel connections antifreeze stainless steel pipework connections solar inhibitor antifreeze roof mountink kit control panel user amp installation manual and labelling packs Acapella Collector Tube and manifold boxes should be transported horizontally Tubes should be unpacked and installed only after the manifold and pipework has been installed Navitas Collectors should always be stored indoors vertically or on the flat with the glass facing upwards VisSolis Collectors should always be stored indoors on the flat with the glass facing upwards Heavy goods should not be loaded on top of the kit boxes Care should be taken when opening boxes to prevent scratches or sudden shocks to the
22. e solar control panel must have a permanent mains electrical power supply which must not be interrupted by a time switch A non switchable fused spur with LED should be used for the system If the permanent electrical supply to the building is to be switched off for any extended periods of time the solar collector Should either be covered or the system drained and covered to prevent degradation of the anti freeze or damage to the system The solar control panel should be located in a prominent location that is readily accessible and frequently occupied normally on the landing outside the solar store fixed not less than 1 5m above floor level The control panel display should be readily visible at all times with clear access and not concealed or obstructed In order to protect the normal operation of the control panel it should be located at least 100mm from insulated pipes which may become hot during operation To limit potential damage to the controller from lighting via the solar collector thermostat a transient voltage suppression TVS diode Product Code 18011010 can be incorporated into the system which suppresses high voltages to a safe level when required In addition all pipework shall be bonded in order to avoid electrical potential differences The flow and return pipes to the solar collector should be fitted with earth clamps connected to the earthling system of the property using an earth bonding cable of 10mm
23. h the Certificate holder s instructions this system creates a permanent seal which ensures the windtightness of the external building envelope is maintained The Certificate holder recommends the Siga Airtight IAB Certificate 08 0314 range of seals and tapes for this purpose Where existing insulation and or plasterboard is displaced it must be replaced with similar material and made airtight Figure 10 Sealing of Roof Underlay 2 4 7 Connections In any solar heating system the return refers to the intake in the collector where liquid is returning to be reheated The flow refers to the hot outflow side where the liquid is flowing to the heat exchanger It is essential that the collector temperature sensor is located in the flow line of the collector All copper pipework should meet the requirements of I S EN1057 2006 A1 2010 Copper and copper alloys Seamless round copper tubes for water and gas in sanitary and heating applications and be clearly marked in accordance with BS 1710 1984 Identification of pipelines and services Ideally pipes should take the shortest route to the solar store and always Slope back to avoid air locks from the collector to the pump station All solar pipework should only be secured with metal pipe clips Plastic clips can not withstand the higher temperatures generated by Solar Heating Systems and must never be used Flexible Pipe Connections Flexible pipe connections are
24. he opinion of the NSAI would preclude the granting of the Certificate o e the product or process continues to be manufactured installed used and maintained in accordance with the description specifications and safety recommendations set out in this certificate f the registration and or surveillance fees due to IAB are paid 5 2 The NSAI Agr ment mark and certification number may only be used on or in relation to product processes in respect of which a valid Certificate exists If the Certificate becomes invalid the Certificate holder must not use the NSAI Agr ment mark and certification number and must remove them from the products already marked 5 3 In granting Certification the NSAI makes no representation as to a the absence or presence of patent rights subsisting in the product process or b the legal right of the Certificate holder to market install or maintain the product process or c whether individual products have been manufactured or installed by the Certificate holder in accordance with the descriptions and specifications set out in this Certificate 5 4 This Certificate does not comprise installation instructions and does not replace the manufacturer s directions or any professional or trade advice relating to use and installation which may be appropriate 5 5 Any recommendations contained in this Certificate relating to the safe use of the certified product process are preconditio
25. immediately if the system shows evidence of having lost pressure or has discharged liquid at the pressure relief valve Items checked on the annual service include the system pressure flow rate antifreeze level pH reading inspection of the collectors and flashings including the barium getter on the Joule Acapella collector tubes and inspection of the Glidevale G1 vent tile 4 4 DURABILITY In the opinion of NSAI Agr ment when installed in accordance with this Certificate and the manufacturer s instructions the Joule Solar Collector Heating Systems will have a design life as Solar collectors in the order of 20 years with regular inspection and maintenance The structural durability of the Joule collectors fixings flashing etc has been assessed and if maintained as per the Joule Energy Solutions maintenance schedule should have a design life equivalent to that of the roof structure on in which they are incorporated 4 5 TESTS AND ASSESSMENTS WERE CARRIED OUT TO DETERMINE THE FOLLOWING e Internal pressure of absorber High temperature resistance Exposure Determination of stagnation temperature External and internal thermal shock Rain penetration Mechanical load Impact resistance Thermal Performance Spread of Flame Fire Penetration Certificate No 10 0353 Joule Solar Collector Heating Systems CI NSAI 4 6 OTHER INVESTIGATIONS 1 Existing data on product properties in relation to fire toxicity environmental
26. is Certificate certifies compliance with the requirements of the Building Regulations 1997 to 2009 USE The Acapella Navitas and VisSolis solar collectors are Suitable for application on new and existing buildings with a roof pitch of between 252 70 The collectors must be fixed to a roof that meets the requirements of I S ICP 2 2002 Code of practice for slating and tiling The Joule Solar Collector Heating Systems should be installed by competent persons with suitable training and practical experience of the systems and who have been approved by Joule and NSAI Agr ment to install the system Readers are advised to check that this Certificate has not been withdrawn or superseded by a later issue by contacting NSAI Agr ment NSAI Santry Dublin 9 or online at http www nsai ie modules certificates uploads pdf 1AB100353 pdf CI NSAI MARKETI NG DESI GN AND MANUFACTURE The Joule Acapella Solar collectors are designed and manufactured by Sunrain China and the Joule Navitas and VisSolis Solar Collectors are designed and manufactured by Gasokol Austria The Collector Heating Systems are designed marketed and distributed by Joule Energy Solutions Kylemore Parkwest Ballyermot Dublin 10 Tel 353 0 1 623 7080 Fax 353 0 1 626 9337 Email info joulesolutions ie Web www joulesolutions ie Certificate No 10 0353 Joule Solar Collector Heating Systems E NSA AI emeni 1 1 ASSESSMENT In the
27. lar Collector Heating Systems To NSAI 4 1 BEHAVIOUR IN RELATION TO FIRE The roof covering on which the collectors are installed must have an AA AB or AC rating as Stated in Table 4 4 of TGD to Part B of the Building Regulations 1997 to 2009 The Joule Navitas On Roof and Acapella Tube Solar Collectors have not been assessed in accordance with BS 476 3 2004 Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs However many of the materials used in the construction of the Joule Solar Collectors are defined in Commission Decision 2000 553 EC 6t September 2000 implementing Council Directive 89 106 EEC for use as roof coverings without restriction When tested in accordance with BS 476 3 2004 Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs the Joule VisSolis In roof solar collector achieved an EXT S AA rating when incorporated into a tiled roof and a EXT S AB rating when incorporated into a slate roof When tested and in accordance with ENV 1187 2005 Test methods for external fire exposure to roofs and classified in accordance with the requirements of I S EN 13501 5 2006 Fire classification of construction products and building elements Classification using data from external fire exposure to roofs tesis the Joule VisSolis In roof solar collector achieved a Broof 14 rating Where pipes pa
28. lated aluminium frame The energy absorbed by the absorber causes the solar fluid to be heated The solar system solution is pumped through the absorber where it receives energy and is then transferred to the solar coil integrated in the solar storage vessel Up to a maximum of 6 flat panel collectors can be joined together in series with a flow rate of 15 litres minute 2 1 3 VisSolis Solar Collector VisSolis Solar Collectors are flat plate collectors consisting of a coated copper absorber housed in an insulated timber frame The panel is flashed into the surrounding roof covering by either slate or tile aluminium flashing kit The energy absorbed by the absorber causes the solar fluid to be heated The solar system solution is pumped through the absorber where it receives energy and is then transferred to the solar coil integrated in the solar storage vessel Up to a maximum of 6 flat panel collectors can be joined together in series with a flow rate of 15 litres minute Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAI Agrement Selective Coated Copper Absorber Copper Pipe Array Ventilation Chanel Mineral Woo Insulation Easy Screw Pipe Connectors E Toughened Safety Glass Profiled Alumintum Frame Figure 2 Joule Navitas On Roof Collector insulation Unique thread y connections Absorber umn Covering system Flashing Toughened Safety Glass 4 Wooden frame
29. llector Fixing Details 2 4 5 Joule VisSolis Collector In Roof Installation The complete procedure for the installation of the e Fixing between panels is achieved by means of Joule VisSolis collector is detailed in the Joule 6x150 mm screws through the elongated holes Installation Manual All relevant general in the aluminium profile to the roof instruction in Cl 2 4 4 should be applied rafters noggins The outside panels are fixed e The sensor panel on the right hand side of the on their edges directly into the rafters or into array is first installed marked by a sticker at structurally designed timber bearers the top right corner of the panel e Moulded covers are fitted with screws to the e The roof tiles slates from the chosen area on aluminium profile at the bottom of the panels the roof where the panel s are to be placed to cover the gaps between the panels Powder are removed including up to Im each side of coated aluminium cover strips are then fitted the panels The upper part of the flashing between panels A rubber mallet is used to Should be at least 2 tile rows below the ridge ensure the cover strip is fully located in place e The Joule VisSolis collector can be fixed The two side strips are installed after the directly into the rafter recommended or to flashing has been fitted additional structurally designed and e The collector sensor probe is then inserted into adequately supported timber bearers not the tube housing situated
30. minimum Certificate No 10 0353 Joule Solar Collector Heating Systems CI NSAI joule ei Figure 16 Joule TVS Diode 2 5 COMMISSIONING Commissioning must be carried out by a Joule trained and approved installer of the system The system should not be commissioned if the collectors are in excess of 70 C because the pressures recorded will not be stable in the long term Expansion Vessel Prior to filling the system the expansion vessel pressure must be set 0 3 bar below the system pressure The pressure is checked at the base of the expansion vessel and the bleed valve may be bled or topped up with a pump Omitting to perform this check will result in irregular pressure readings during commissioning of the system Filling the Loop setting the flow rate The system is first flushed with clean water to remove debris or flux residue The system must then be fully drained The Joule Solar Collector Heating System utilises Joule Zitrec Solar LC a mono propylene glycol based non toxic heat transfer fluid This is supplied diluted with 60 water to provide 20 C freeze protection and a target pH value of 8 8 It is important that a motorised flush and fill centre is used to fill and pressurise the system with the antifreeze in accordance with the Joule Installation Manual as follows See Figures 17 and 18 e The flush and fill centre fill hose is connected to the fill inlet valve Valve A Fig 17 and the
31. ns to the validity of the Certificate However the NSAI does not certify that the manufacture or installation of the certified product or process in accordance with the descriptions and specifications set out in this Certificate will satisfy the requirements of the Safety Health and Welfare at Work Act 2005 or of any other current or future common law duty of care owed by the manufacturer or by the Certificate holder 5 6 The NSAI is not responsible to any person or body for loss or damage including personal injury arising as a direct or indirect result of the use of this product or process 5 7 Where reference is made in this Certificate to any Act of the Oireachtas Regulation made thereunder Statutory Instrument Code of Practice National Standards manufacturer s instructions or similar publication it shall be construed as reference to such publication in the form in which it is in force at the date of this Certification Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAI Agr ment NSAI Agr ment This Certificate No 10 0353 is accordingly granted by the NSAI to Joule Energy Solutions on behalf of NSAI Agr ment Date of Issue November 2010 Se n Balfe Director of NSAI Agr ment Readers may check that the status of this Certificate has not changed by contacting NSAI Agr ment NSAI 1 Swift Square Northwood Santry Dublin 9 Ireland Telephone 01 807 3800 Fax 01 807 3842
32. o 2009 The installer of the System must ensure that this has been done prior to commencing installation 3 2 IMPACT RESISTANCE When tested for impact resistance in accordance with EN 12975 2 2006 Cl 5 1 Method 1 The Joule Navitas met the pass criteria for 150g steel ball impact up to 2m height The Joule VisSolis met the pass criteria for 150g steel ball impact up to 2m height The Joule Acapella Collector sustained no damage when tested using 150g steel balls up to a height of 0 8m 3 3 COLLECTOR EFFICIENCIES The ability to convert solar energy into thermal energy is expressed by the optical efficiency no zero loss collector efficiency in SEAI DEAP software of the system Table 1 shows the no values for the Joule Solar Collectors when tested to EN 12975 2 2006 At high levels of sunlight 1000W m when the average system fluid temperature is slightly higher than ambient temperature 10K system utilising the Joule collectors can transfer approximately 1 49 kW of energy for the Joule Navitas Collector 2 kW of energy for the Joule Acapella Collector and 1 48 kw of energy for the Joule VisSolis collector based on Acapella 30ET 30 tube set to the building hot water store Test results of the performance of the collectors are shown in Table 1 and 2 3 4 RISK OF BACTERIAL GROWTH LEGI ONELLA The installer of the Joule Solar Collector Heating System completes a Legionnaires Checklist as part of the initial risk asse
33. on the right hand Standard roof battens See Figure 6 side of the panel e Lifting straps are provided on the upper and under side of the panel Connecting sockets Should never be used for lifting purposes e The collector panels are placed on the cleared section of the roof A lath on the back of each panel is used to temporarily locate the panel over the roofing battens Additional panels are placed on the roof as required and pushed together until the joining edges interlink Certificate No 10 0353 Joule Solar Collector Heating Systems EN K NSAI aluminum flashing Top powder coated AK Uf PA flashing including skirt qe amp Bottom powder coated aluminum Side powder coated alurni soak aluminum flashing op powder coated T m gt Figure 7 oule VisSolis Collector Tile Flashing Detail Figure 8 oule VisSolis Collector Slate Flashing Detail Certificate No 10 0353 Joule Solar Collector Heating Systems e E E 5 E E 2 E 5 3 flashing including skirt Bottom powder coated aluminum ah NA gt E NSA e Joule Energy Solutions offer Tile and Slate flashing kits with the Joule VisSolis collectors to suit the roof covering in which the collectors are to be installed These powder coated aluminium flashing kits for use on tiled or Slated roofs with an inclination of more than 25 provide a weatherproof connection between the roof tiles
34. or range and technical specifications The Joule Solar Collector range have been tested to EN 12975 2 2006 Thermal solar systems and components Solar collectors Test methods 2 1 1 Joule Acapella Solar Collector The Joule Acapella Solar Collectors consist of an array of evacuated Sydney Tubes which house the heat pipes and absorbers Evaporator fluid is contained within the heat pipe The energy absorbed by the absorber causes the fluid to change from a fluid state to a vapour state and the vapour rises to the condenser bulb See Figure 1 The condenser is connected directiy into the manifold via a dry pocket Within the manifold the solar system solution is passed across the dry pocket that houses the condenser The condenser releases the latent heat of evaporation to the solar system solution and condenses The condensate returns to the heat pipe and the cycle is repeated Due to the dry connection the Joule Acapella Solar tubes can be replaced without the need of draining down the solar system Up to a maximum of 4 x 30 tube collectors can be joined together in series with a flow rate of 12 litres minute Table 1 shows the Joule Acapella Solar Collector technical specifications Copper Manifold Zinc Coated Bulb Alluminium Header Figure 1 Joule Acapella Heat Pipe Collector 2 1 2 Navitas Solar Collector Navitas Solar Collectors are flat plate collectors consisting of a coated copper absorber housed in an insu
35. required to connect the manifold through the building fabric and allow flexibility in connecting to the internal pipe work Flexible stainless steel pipes are available in both 15mm and 22mm diameter If connecting one diameter pipe to another a suitable reducer compression fitting is required to make the connection Certificate No 10 0353 Joule Solar Collector Heating Systems Agr ment Types of Connections The only pipes which should be used with a solar installation are Oo copper pipe to S EN1057 2006 A1 2010 continuous flexible Stainless steel or mild seamless steel pipe to ISO 9329 1 1989 Seamless steel tubes for pressure purposes Technical delivery conditions Part 1 Unalloyed steels with specified room temperature properties When using copper pipe only compression fittings or brazed joints at 900 C can be used Soft Solder joints are not suitable for solar installations Note PEX Plastic PEX ALU PEX or galvanised tubing or fittings should NOT be used under any circumstances Pipe work Insulation All pipe work on the solar loop shall be insulated with high temperature insulation suitable for use at temperatures above 150 C such as HT Armaflex or equivalent This is essential as regular pipe insulation will degrade at temperatures experienced by solar pipes The wall thickness of the insulation should be at least equal to the diameter of the pipe and must conform to the requirements of Cl 1 4 4 of TG
36. s Disease in Ireland 3 5 HIGH TEMPERATURE CONDITIONS Joule Zitrec Solar LC used with the Joule Solar Collector Heating Systems is mono propylene glycol based heat transfer fluid blended with high temperature corrosion and scale inhibitors tested to 300 C Continuous temperatures in excess of 137 C will cause the gradual degrading of the antifreeze solution and its inhibitor properties and over time will also cause damage to the solar pump station rated at 160 C max and the expansion vessel diaphragm rated at 100 C max in the system The Joule Control Panel uses the following three functions to prevent stagnation in the system from occurring Thermostat Function This function allows the controller to control the circulator supplying to the hot water system depending on a pre defined temperature difference When the temperature in the cylinder exceeds the defined on value typically 80 C the pump is switched on until the temperature difference falls below the off value typically 60 C This cycle will continue until the collector temperature has been reduced Stagnation Reduction Function This function delays the end of the cylinder s loading phase in order to reduce or even to avoid the system s stagnation times at high temperatures This function causes the pump to be stopped repeatedly and only briefly switched on again when high collector temperatures arise With higher collector temperature
37. s the efficiency decreases significantly thus loading takes longer This delays the beginning of any stagnation time Certificate No 10 0353 Joule Solar Collector Heating Systems CI NSAI Holiday Function Re coolin This function is typically enabled when the household is on holiday When the holiday function is activated and the temperature in the cylinder reaches 10 C below the set maximum cylinder temperature the controller circulates water from the lower part of the cylinder until the set minimum storage tank temperature is reached 3 6 LIGHTNING PROTECTION To limit potential damage to the Joule Solar Controller a transient voltage suppression TVS diode Product Code 18011010 should be incorporated in series with collector sensor This diode suppressed any potential high voltages to a safe level See Figure 16 All pipe work is bonded to avoid electrical potential differences and the collector should be earthed as detailed in Cl 2 4 11 of this Certificate In general the risk of property damage due to lightning is relatively low in Ireland for domestic properties and installation of Joule Solar Collector Heating Systems does not generally increase the level of risk as the collectors are placed below ridge level and not higher than the chimney Where a building requires specific lightning protection the collector should be connected to the lightning protection system Certificate No 10 0353 Joule So
38. ss through fire rated walls or cavity barriers they must be adequately fire stopped without compromising provision for thermal expansion Combustible materials should not be exposed to solar heating equipment having operating temperatures which can cause ignition 4 2 WEATHERTIGHTNESS The Joule Solar Collector are fixed to the roof rafters and or additional structurally designed batons Completed roofs will provide adequate resistance to weather ingress when installed in accordance with this Certificate and the Certificate holder s installation instructions Particular attention must be paid to correct installation of all components and to the detailing and positioning of gaskets and areas where pipe work enters the building 4 3 MAINTENANCE Users should regularly check the temperatures which the solar control panel is recording If the collector temperatures have been excessively high i e over 170 C it is recommended that the antifreeze level be checked using a refractometer by an approved installer qualified engineer If the antifreeze has lost its antifreeze properties the system should be refilled with fresh Joule Zitrc Solar LC antifreeze fluid With correct operation of the Joule Solar Collector Heating System Joule Zitrc Solar LC antifreeze fluid should remain operative for up to 7 years when replacement is required It is recommended that the solar heating system is serviced annually by a qualified engineer and
39. ssment of the site If a risk of legionella is identified during this risk assessment a supplementary relay connected to an auxiliary heating source activated by the control panel is installed Guidance shall be sought from the Certificate Holder in all such instances When this additional relay function is activated the full contents of the cylinder is heated to 60 C measured at the base of the cylinder utilising the immersion heater or boiler at a frequency set by the timer daily for cylinders with a capacity of over 400 litres Scald out time set by the installer is dependent on the cylinder temperature and volume In addition a thorough review of all pipework is required in such situations with alterations incorporated as required to limit risk Information and guidance is provided to the homeowner by the installer on the correct operation of the solar heating system during normal operation and after periods of non use to help reduce the risk of legionella Examples of areas where a risk of legionella may be identified include long periods of non use of the hot water supply infrequently used outlets such as showers and taps and residents who are highly vulnerable to infection For further guidance refer to the HPSC Health Protection Surveillance Centre document National Guidelines for the Control of Legionella in Ireland and the NDSC National Disease Surveillance Centre document The Management Of Legionnaire
40. stimated at 50 litres adult day The Certificate holder recommends a 200 litre cylinder for a one to two adult household and a 300 litre cylinder for three to five adults All hot water storage vessels should carry a label containing the following information Manufacturers name Nominal capacity in litres Standing heat loss in kWh day Type of vessel Auxiliary heating heat exchanger performance in kW where present methods is used for open vented systems i e No of Panel Tube Recommended Product gravity hot water systems The advice of the System System certificate holder shall be sought regarding the Size Size suitability and sizing of the solar copper cylinders Joule Cyclone when used Solid fuel heating systems must not 2 pane a es o be integrated into a pressurised plumbing 3 5 3panel 40tube 300litres TSM300 oule Copperkino system 2 panel 200 litres LBS14045 3 panel 300 litres LBS18050 Certificate No 10 0353 Joule Solar Collector Heating Systems nsa A thermostatic mixing valve TMV set at 52 C shall be installed with the Joule Solar Collector heating Systems to prevent accidental scalding to the householder In short pipework runs without dead legs where the legionella risk has been assessed to be minimal the mixing valve can be located at the hot water outlet from the cylinder Where a legionella risk has been assessed to be high insulated recirculation pipework should be
41. t not be channelled into a drain or any pipe work which will allow it to enter the normal water course Figure 12 Joule Pump Station Expansion Vessel The expansion vessel should be located below the level of the connection from the pump station to prolong its life and should be fixed to a sound surface suitable for holding the weight of the unit The expansion vessel supplied with the Joule Solar Collector Heating Systems includes an appropriate corrugated hose and threaded connection to join the vessel to the pump station Certificate No 10 0353 Joule Solar Collector Heating Systems Figure 13 Expansion vessel Figure 15 Joule Control Panel For safety the pump and sensor connections Should always be wired prior to connecting power to the solar control panel 18 litre VESY002 24 litre VESY003 35 litre VESY004 Temperature Reducing Vessel When the contents of the pipe work between the collector array and the expansion vessel with a fixed membrane is lower than 50 of the liquid capacity of a correctly dimensioned expansion tank a Joule Temperature Reducing Vessel Code VESY005 Figure 14 is incorporated into the system as shown in Figure 19 21 Figure 14 Temperature Reducing Vessel Product Code VESY005 2 4 11 Wiring the Solar Control Panel All electrical aspects of the installation should be undertaken in accordance with ETCI regulations by a qualified RECI electrical contractor Th
42. tance to the ingress of moisture see Part 4 of this Certificate Part L Conservation of Fuel and Energy L1 Conservation of Fuel and Energy The Joule Solar Collector Heating Systems can be designed to meet the minimum level of energy provision from renewable technologies stated in this Regulation i e 10kWh m annum contributing to energy use for domestic hot water heating Certificate No 10 0353 Joule Solar Collector Heating Systems Part Two Technical Specification and Control Data 2 1 PRODUCT DESCRIPTION This Certificate relates to the following Joule Solar Collector Solar Heating Systems e Joule Acapella Solar Collector Heating System e Joule Navitas Solar Collector Heating System e Joule VisSolis Solar Collector Heating System Each system is comprised of a solar collector a cylinder pump station control panel expansion vessel connections sloping roof kit antifreeze user amp installation manual and labelling packs The Acapella solar collector consists of an insulated manifold and a row of evacuated solar tubes for on roof applications The Navitas solar collector consisting of aluminium framed flat plate array for on roof applications The VisSolis solar collector consisting of timber frame flat plate array with powder coated aluminium flashing for on roof applications Figure 1 21 show the main elements of the Joule Solar Collector Solar Heating Systems Table 1 shows the Joule Solar Collect
43. tas Collector and ITW Report No 06COL470 1 for the VisSolis Collector Global I rradiance G G 400 W m 700 W m 1 000 W m Acapella o man E a a Memi Lanto so o ER ES Ea m e er Era 1 G Tm mean temperature of system fluid Ta ambient temperature and performance values per I S EN 12795 2 2006 Fraunhofer Institute Test report KTB Nr 2007 07 en for the Acapella collector AIT Report project No 2 04 00327 1 0 2 04 00312 1 0 1 for the Navitas Collector and ITW Report No 06COL470 1 for the VisSolis Collector Above values for the Acapella system are based on output from the Acapella 30ET 30 tube set Largest collector of series Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAL 2 4 INSTALLATION 2 4 1 General The Joule Solar Collector Heating Systems should be installed by competent persons with suitable training and practical experience of the systems and who have been approved by Joule and NSAI Agr ment to install the system The installer shall fully understand the requirements of the customer and have completed a user and installation health amp safety risk assessment The necessary plumbing work should be undertaken by a qualified plumber The necessary electrical work required to install control equipment should be undertaken by a qualified RECI electrical contractor Solar panel installation must be performed in accordance with all Health Safety legislation and local
44. tem Risk Assessment Before work commences on the installation a risk assessment must be completed and recorded by the installer Items assessed include e Access to roof e Ability of roof structure to accommodate all applied loadings Working at height Effects of wind and snow loads High temperature pipe work and liquids Antifreeze storage and discharge release Water quality Fire safety installation of high temperature components e Risk of Legionella e Access for routing pipework e Protection from overhead wires Site Survey Following completion of the initial risk assessment a site survey must be carried out by the installer This survey will typically cover the following points e Identification of any special user requirements e Shading current and potential risk e Suitability of roof collector fixing surface tile slate condition etc e Roof orientation e Access to collector location e Pre heat storage location is there adequate space for DHW cylinder and solar control system e Configuration of occupants DHW system and anticipated usage patterns e Sizing of the solar heating system e Location of pump station assembly e Control panel location and fixing height 2 4 3 Sloping Roof Kit The Certificate Holder defines the roof kit to be used depending on the collector being installed and the type of slate tile used All roof brackets are manufactured from Stainless Steel Isol
45. ule Acapella Collector The Joule Acapella Collector was tested to 1000 Pa positive pressure i e downward pressure without failure occurring Using the safety factor of 1 5 for positive pressure the Joule Acapella Collectors can be deemed to withstand a positive pressure of up to 666 Pa The negative pressure uplift test was not conducted as any negative pressure on the fixing between the vacuum tubes and the casing are deemed to be negligible The collectors and fixing bracket systems are designed to cover all Irish wind zones as illustrated in Figure NA 1 in Irish National Annex to Eurocode 1 However In high wind load areas e g at excessive heights or very exposed areas wind loads should be calculated in accordance with I S EN 1991 1 4 Eurocode 1 Actions on Structures General actions Wind actions The advice of the Certificate holder should be sought when the force acting upon the solar collector is greater than the above tested values To minimise the effect of wind load on the collectors it is recommended that collectors are not installed within 0 5m of the roof edge ridge eaves or projections such as parapets chimneys or dormer windows Certificate No 10 0353 Joule Solar Collector Heating Systems E NSAN The host roof structure and any modifications necessary to accommodate the Joule Solar Collectors should be checked by a suitably qualified engineer in accordance with the Building Regulations 1997 t
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