For the expert technician Installation manual auroTHERM On-roof/flat roof installation GB VTK 570/2 VTK 1140/2
Contents Contents 1 1.1 1.2 1.3 1.4 Notes on the documentation......................... 3 Other applicable documents ................................3 Storage of the documents ....................................3 Symbols used ...........................................................3 Applicability of the manual...................................3 2 2.1 2.2 Intended use .................................................... 3 Combination with other components ................3 Operational conditions ...
Notes on the documentation 1 Intended use 2 1 Notes on the documentation The instructions below are intended to help you throughout the entire documentation. 1.1 Other applicable documents When assembling the tube collectors, pay attention to all the installation instructions for the components and assemblies within the solar installation. These instructions are included with the individual components of the system and the additional components.
2 Intended use 3 Safety instructions On-roof mounting: The tube collectors can be mounted at an angle of 15° – 75°. An installation angle of less than 15° is not permissible. Flat roof installation: The tube collectors can be installed on flat roof frames in the as-delivered condition with an angle of 30°, 45° or 60°. An installation angle of less than 15° is not permissible.
Safety instructions 3 Before installation 4 associated with the work. All scaffolding in the UK, other than prefabricated (zip-up) scaffold towers, must be designed and constructed by a vetted contractor, and have suitable kick boards, hand rails and where appropriate netting. Areas around the scaffolding should be zoned off and marked with suitable warning signs to a suitable distance to protect persons from falling objects. Workers should have available and use personal protective equipment as necessary.
4 Before installation 4.2 Scope of delivery • Check the mounting kit for completeness based on the illustrations and bills of materials. 4.2.1 On-roof mounting 12 1 11 10 9 2 8 7 6 5 3 4 Fig. 4.1 On-roof mounting kit Pos.
Before installation 4 4.2.2 Flat-roof mounting 1 9 2 8 3 7 4 6 5 Fig. 4.2 Flat roof mounting kit Pos. Description Quantity Article number (kit) 1 Rail kit VTK 1140/2 2 0020076781 2 Rail kit VTK 570/2 2 0020076780 3 Open air installation, VTK 1 0020076778 4 Gravel tray kit 2 3 0020059904 (2 pcs.) 0020059905 (3 pcs.
4 Before installation 4.3 Assembling the collector array The following tables list the required components according to the type of installation. 4.3.1 On-roof mounting When mounted on the roof, Vaillant tube collectors can be arranged above one another in up to 3 rows. 4.3.1.1 Collector arrangement, 1-row Fig. 4.3 Installation kit for single row on-roof mounting (here: VTK 570/2) Number of collectors 1 2 3 4 5 6 7 Connecting kit VTK (basic module) Part No.
Before installation 4 Number of collectors 1 2 3 Connecting kit VTK (basic module) Part No. 0020076785 5 6 7 11) Connecting kit VTK (expansion module) Part No. 0020076779 1 2 3 4 5 6 12) 22) 32) 42) 52) 62) 72) 1 2 3 4 5 6 7 Number of collectors VTK 1140/2 1 2 3 4 5 6 Number of collectors VTK 570/2 1 1 1 1 1 1 Bracket kit Type S Part No. 0020067275 Bracket kit Type S flat Part No. 0020080145 Required quantity - Bracket kit Type P (pantile) Part No.
4 Before installation 4.3.1.2 Collector arrangement, 2-row A B A Fig. 4.4 Installation kit for 2-row on-roof mounting (here: VTK 570/2) Number of collectors per row 1 2 3 4 5 6 7 Number of rows Connecting kit VTK (basic module) Part No. 0020076785 Connecting kit VTK (expansion module) Part No. 0020076779 Bracket kit Type P (pantile) Part No. 0020067273 10 11 12 13 14 21) a Bracket kit Type S flat Part No. 0020080145 Bracket kit Type P (pantile) Part No.
Before installation 4 Number of collectors per row 1 2 3 Number of rows 4 5 6 7 2 Connecting kit VTK (basic module) Part No. 0020076785 21) Connecting kit VTK (expansion module) Part No. 0020076779 - 2 4 6 8 10 12 12) 22) 32) 42) 52) 62) 72) 12) 22) 32) 42) 52) 62) 72) 2 4 6 8 10 12 14 Bracket kit Type P (pantile) Part No. 0020067273 Bracket kit Type S Part No. 0020067275 Required quantity VTK 1140/2 a Bracket kit Type S flat Part No.
4 Before installation Number of collectors per row 1 2 3 4 5 6 7 Number of rows 11 12 13 14 - 3 6 9 12 15 18 21 24 27 30 33 36 39 12) 22) 32) 42) 52) 62) 72) 82) 92) 102) 112) 122) 132) 142) 22) 42) 62) 82) 102) 122) 142) 162) 182) 202) 222) 242) 262) 282) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 1 2 3 4 5 6 7 Required quantity VTK 570/2 a Bracket kit Type S flat Part No. 0020080145 Bracket kit Type P (pantile) Part No.
Before installation 4 4.3.2 Flat-roof mounting Number of collectors 1 2 3 4 5 6 7 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 Mounting kit for open-air installation on a flat roof Part No. 0020076778 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Gravel trays required 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Gravel tray kit (2 pcs.) Part No. 0020059904 2 - 1 2 - 1 2 - 1 2 - 1 2 - Gravel tray kit (3 pcs.) Part No.
4 Before installation 4.4 Interconnection scheme h Note Observe the planning information when dimensioning the array volume flow. Furthermore, observe the following rules: • Connect a maximum of 14x VTK 570/2 (corresponding to an aperture area of 14 m2) in series. max. 14 Fig. 4.6 Series connection VTK 570/2 • Connect a maximum of 7x VTK 1140/2 (corresponding to an aperture area of 14 m2) in series. max. 7 Fig. 4.
Before installation 4 When collector arrays are connected in parallel, each individual array must have the same aperture area. Fig. 4.9 Sizes of the individual arrays Caution! a Danger of air locks! If 3 or more collector arrays are connected in parallel, a stop valve must be fitted in the collector supply line (hot side) of each individual array. These will be used for venting the individual arrays during commissioning. Only use the Vaillant stop valve, Part No. 0020076784 Fig. 4.
4 Before installation 5 On-roof mounting 4.5 Preparing the hydraulic connection 4.5.1 On-roof mounting Fig. 4.12 Assembly tools: spirit level, cordless screwdriver, Torx bit (TX30, supplied), allen key 5mm, socket/combination wrench (13 mm), hammer, measuring tape / folding rule Fig 4.11 Passing the pipe through the sarking membrane 5 If there is a sarking membrane, proceed as follows: • Make a v-shaped cut in the sarking membrane.
On-roof mounting 5 5.1 Fitting the brackets For collectors arranged side-by-side • Mount the anchors for the mounting rails at the following distances: h Note During final fixing the pre-assembly dimension A is reduced by approx. 20 - 25 mm. Take care that there is adequate clearance on the anchors, therefore.
5 On-roof mounting For collectors arranged on top of each other • Mount the anchors for the mounting rails at the following distances: Note h During final fixing the pre-assembly dimension A is reduced by approx. 20 - 25 mm. Take care that there is adequate clearance on the anchors, therefore.
On-roof mounting 5 5.2.1 Bracket Type P (pantile) 1 2 A 3 2 B 5 mm 1 Fig. 5.3 Bracket type P Key 1 Lower bracket 2 Upper bracket 3 Central bracket The bracket type P can be fixed to the rafters (Pos. A) or by use of the long rear plate set 0020080177 can be offset to suit tile profile. Fixing to rafters 5 A 3 6 2 1 4 B Fig. 5.4 Fixing to rafters 1. Uncover the rafters where needed. For distances please see Tab. 5.1 and 5.2. 2. Position the bracket.
5 On-roof mounting h Note With some roof covering it may be necessary to offset the roof bracket to the left or right of the rafter, to do this use the accessory: Part No. 0020080177 (not available in every country). Observe the appropriate installation manual. Fixing to the roof batten Caution! a Only acceptable if roof and battens have been inspected by a competent roofing contractor / designer.
On-roof mounting 5 5.2.2 Bracket Type S (for high profile pantiles) Caution! a Before installation on the roof batten, check the load capacity of the roof batten! If necessary, replace the roof batten. 1 3 2 4 Fig. 5.6 Fixing the bracket type S 1. Uncover the rafters or the roof batten where needed. For distances please see Tab. 5.1 and 5.2. 2. Position the bracket. Take note of the correct positions of the upper, central and lower brackets (see Fig. 5.3). 5.2.3 3.
5 On-roof mounting 5.2.3 Hanger bolt fixing kit Caution! a Before installation check the load-bearing capacity of the wooden substructure! If necessary, strengthen it. Only for use on roof structures with timbers large enough to accept stair bolt. 1 3 6 2 5 4 Fig. 5.8 Fixing with stair bolt 1. Bore a hole in the roof covering in the corresponding position. For distances please see Tab. 5.1 and 5.2. 2. Tighten the stair bolt to the rafters through the pantile. 3.
On-roof mounting 5 5.3 Fitting the collectors • Fix the horizontal mounting rails with the frame clamping elements on the brackets. h Note For the vertical spacing between the brackets please see Tables 5.1 and 5.2. h Note For a better visual appearance, position the lower rail as low as possible on the bracket. Fig. 5.9 Fixing the mounting rails • Insert the connecting elements into the mounting rails by the side, until they lock into place.
5 On-roof mounting • Place the collector with the lower edge on the mounting rail and hook it to the clamping elements. • Make sure that the upper part (1) of the clamping element is above the collector rail. • Tighten the clamping elements of the lower mounting rail with the socket/combination wrench (13 mm). 1 Caution! a After tightening the clamping ele- ments, make sure the tension is correct by shaking the upper part of the clamping element. If it can be moved, retighten the nut. Fig. 5.
On-roof mounting 5 • Place the next collector on the lower mounting rail. • Make sure that the upper part (1) of the clamping element is above the collector rail. • Tighten the lower clamping elements on the collector. • Slide the upper mounting rails and clamping elements little by little from the top against the collector. 1 Fig. 5.15 Mounting other collectors 1 A • Couple the double nipple (A) (from the VTK expansion module connecting kit, Part No.
5 On-roof mounting 2 For collectors arranged on top of each other 3 1 • Slide the central mounting rail flush with the lower collector (1). • Make sure that the hook of the clamping element (3) is above the edge of the collector. • Fix the mounting rail (2) for the next row of collectors to the clamping element. Fig. 5.19 Central mounting rail for 2 or 3 rows of collectors 1 3 For collectors arranged on top of each other • Place the upper collector (1) in the central mounting rail (2).
On-roof mounting 5 • For systems with collector sensors: Plug the collector sensor into the opening provided on the flow side of the collector (hot side). With several rows of collectors: • Connect the rows of collectors in accordance with the interconnection schemes (cf. Section 4.4). In general it is possible to attach the h Note collector sensor to the left or the right side of the collector array, as the collectors have a corresponding opening on each side.
6 Flat-roof mounting 6 Flat-roof mounting With flat roof installation, the tube collectors are fastened to frames. The flat roof frames allow for a flexible installation with an angle of 30 °, 45 ° or 60 °. Also note that the height of the mounting rails is variable, in order to compensate for small floor irregularities. 6.2 Weighting and arrangement of the frames First of all, define the necessary load of the frames based on Tab. 6.1.
Flat-roof mounting 6 For the required space and the distances between frames please see Tables 6.2 to 6.4. 45° (42.5°) 60° (59.
6 Flat-roof mounting VTK 1140/2 [distances in mm] B E D A α1) F α1) C C Number of collectors A3) 1 11704) 2 2548 3 3945 4 5342 5 6739 6 8136 7 9533 30° B 1072 45° F 29502) B 1432 60° F 39402) B 1757 F 48302) C 2460 D ±30 A - - 1274 1397 1) Angle of attack 30°, 45° or 60° 2) Solar altitude of 20° (winter sun) 3) Dimension A may vary in conjunction with dimensions D and E by ±30 mm 4) ±5 mm Table 6.
Flat-roof mounting 6 VTK 1140/2 and VTK 570/2 in combination [distances in mm] B D E G A VTK 1140/2 α1) F α1) C C Number of collectors 30° A3) VTK 570/2 VTK 1140/2 1 1 11704) 1 2 2548 1 3 3945 1 4 5342 1 5 6739 1 6 8136 VTK 570/2 45° 60° B F B F B F 1072 29502) 1432 39402) 1757 48302) C D ±30 A G 2460 584 1397 1274 1) Angle of attack 30°, 45° or 60° 2) Solar altitude of 20° (winter sun) 3) Dimension A may vary in conjunction with dimensions D and E by
6 Flat-roof mounting 6.3 Fitting the collectors • Open the frames. Caution! a Follow Tables 6.1 to 6.4 without exception to determine the required weights! 3 2 With screwed connection on the roof: • Fasten the rear section to the base section with a retaining pin and locking clip. 1 Fig. 6.1 Preparing the frame VTK 570/2 VTK 1140/2 If gravel trays are used: • Slide the gravel tray (1) on the base section. • Fasten the rear section to the base section with a retaining pin and locking clip.
Flat-roof mounting 6 VTK 1140/2 VTK 570/2 1 1 If gravel trays are used: • Place large protection mats under the system. • Set up the frames (1) according to the number of collectors to be mounted. h Note The weights and distances can be found in Table 6.1. Caution! a Before mounting the collectors, fill the gravel trays on the first frame with gravel or other suitable weighting material, to give the system stability. Fig. 6.
6 Flat-roof mounting A • If multiple collectors are mounted, have the mounting rails (1) meet in the centre of the frames (2) (A). • On the first and last frame, the mounting rails (1) should project by 20 mm over the edge (B). B 2 20 1 1 Fig. 6.7 Positioning the mounting rails 1 • Insert the connecting elements (1) into the ends of the mounting rails. • Join the mounting rails and fix them to the frame clamping elements. • Compensate any difference in height by moving the clamping elements. Fig.
Flat-roof mounting 6 • Remove the carrying straps. Fig. 6.11 Removing the carrying straps • Place the next collector on the lower mounting rail at a distance of approx. 10 cm from the first collector. 1 Fig. 6.12 Mounting other collectors 1 A B 2 • Couple the double nipple (A) (from the VTK expansion module connecting kit, Part No. 0020076779) to the union nut (B) on the first collector. • Push the collectors together. Fig. 6.
6 Flat-roof mounting 1 • Slide the upper mounting rails towards the collectors. • Take care that the upper parts (1) of the clamping elements are over the rails on the collectors. • Tighten the clamping element with the socket/combination wrench (13 mm AF). Caution! a After tightening the clamping ele- Fig. 6.15 Positioning the upper mounting rail ments, make sure the tension is correct by shaking the upper part of the clamping element. If it can be moved, retighten the nut.
Flat-roof mounting 6 Final operations 7 2 1 3 After commissioning: • Insulate the hydraulic connections with the Armeflex insulation (1) (from the VTK expansion module connecting kit, Part No. 0020076779). • Cover the insulation with the cover clip (2) (from the VTK expansion module connecting kit, Part No. 0020076779). • Insulate the hydraulic system connections with the EPDM insulation (3) (from the VTK expansion module connecting kit, Part No. 0020076779). Fig. 6.
8 Disposal 9 Vaillant Customer Service and warranty 8 Recycling and disposal The development of all Vaillant products takes into account the future with regard to use of materials that can be easily recycled with the least detrimental affects upon our environment. The packaging makes maximum use of recycled materials and the appliance itself consists mainly of metals that are readily separated into recyclable raw materials.
Technical data 10 10 Technical data Units VTK 570/2 VTK 1140/2 6 12 η0 (aperture), DIN4757-4 or EN12975 % 64.2 c1 with wind, relative to aperture W/(m2k) 0.885 c2 with wind, relative to aperture W/(m2k2) 0.001 Number of vacuum tubes K θ,trans (50°), relative to aperture 1 K θ,long (50°), relative to aperture 0.
10 Technical data VTK 570/2 111 1652 702 Fig. 10.
Technical data 10 VTK 1140/2 111 1652 1392 Fig. 10.2 Dimensional drawing VTK 1140/2 η 80% 70% 60% 50% 40% 30% 20% 10% 0% ΔT 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Fig. 10.
10 Technical data η 80% 70% 60% 50% 40% 30% 20% 10% 0% ΔT 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Fig. 10.4 Efficiency of the VTK 570/2 and the 1140/2 at an irradiance Eg of 800 W/m2 Key η Efficiency [%] ΔT = TCollector - TAmbient air [K] Δp [mbar] 160 140 120 VTK 570/2 VTK 1140/2 100 90 60 40 20 0 0 50 100 150 200 250 300 350 400 450 Q [l/h] 500 Fig. 10.
0020077994_00 GB 022009 – Modifications reserved
