Products and are certified with the registration numbers 011-7S154F and 011-7S832F. The copyright of this instruction incl. graphical material remains in any case at the STI GmbH. The instruction can only be duplicated completely or in parts with written authorisation of the STI GmbH. Subject to technical changes and misprints.
Safety regulations, instructions and guidelines Engineer standards and guidelines Teil 2: Sonnenheizungsanlagen mit organischen Wärmeträgern; • VBG 4 Unfallverhütungsvorschriften Elektrische Anforderungen an die sicherheitstechnische Ausrüstung Anlagen und Betriebsmittel • DIN VDE 0100-510 Errichten von Starkstromanlagen mit • VBG 37 Unfallverhütungsvorschrift Bauarbeiten Nennspannungen bis 1000 V;...
Page 4
To protect the system of overheating during standstill and substructure on site to sufficient load-carrying capacity. accelerated glycole-aging a self-draining system (e.g. STI Drain Master or Drain Box) is recommended. Pay increased attention to the possible durability of the screw...
Product description Solar collector FKA The solar thermal collector FKA uses the radiant energy of the sun to heat the heat transfer medium. This glycol-water mixture gives off the stored heat via a heat exchanger to a storage. The obtained energy can be used for water heating and heating support.
Page 6
Product description Specifications The FKA collector has a pure copper absorber with meander shaped tubes as well as integrated manifolds. The hydraulic system enables to connect 15 collectors in one series and up to six collectors on one side. In one collector field up to 45 collectors can be connected in three rows.
Collector field dimensions Vertical section across a collector field Lip (Collector cover) In case of multi-row installations the collectors will always be mounted on joint on top of each other . The lip (collector cover) of the upper collector has to be put onto the lower collector.
Page 8
Collector field dimensions Collector type per each additional collector 240 V Number of collectors Field width in mm 1,167 2,387 3,607 4,827 6,047 7,267 8,487 9,707 + 1,220 Number of rows Field height in mm 2,067 4,134 6,201 8,268 10,335 12,402 14,469 16,536 + 2,067 240 H Number of collectors...
Hydraulic connections Temperature sensor Each collector has a sleeve for inserting a temperature sensor. The sleeve is directly connected with the absorber. If the collectors are installed correctly, the sleeve is always located on the top of the collector on the left. The temperature sensor can be inserted in any collector.
Spacing multi-row collector fields Distance measures roof-tiles Roof-tiles roof covering For each collector row two rows roof-tiles are necessary. The vertical sizes H1 to Hn are each taken on the top edge of the roof-tiles. The measures for installation of the roof-tiles are obligatory.
Roof-mounted installation on roof-tiles lateral view sketchy depiction for roof-tiles brackets without cover. 1400022 Connection set for profile set 1400026 Profile set alu 240V / 270V 1400027 Profile set alu 240H 1400028 Profile set alu 270H 1400025 Stop set for profile set For roof-mounted installations one profile set alu 1400026, 1400027 or 1400028 (depending on the collector type) as well as one stop set for profile set 1400025 are deliverd for each collector.
Assembly roof-tile clamps Completely tiled roof. When mounting the field in regions with snow load zone III and higher or with expected increased snow loads, it is necessary to place the roof hooks in the rafter area. Removal of the tiles after previous determination of the placement of the roof-tile clamps (see page 10 „Spacing multi-row collector fields“).
Page 13
Assembly roof-tile clamps In addition to the grinding of the roof-tile we recommend to use a screw that is mounted on the roof-tile clamp support as distance saver. Finished mounting of screw as distance saver. Fix the roof-tile clamp with the support 50x150x5 mm using two screws 5x60 mm.
Assembly roof-tile clamps with lead Completely tiled roof. Removal of the tiles after previous determination of the placement of the roof-tile clamps (see page 10 „Spacing multi-row collector fields“) When mounting the field in regions with snow load zone III and higher or with expected increased snow loads, it is necessary to place the roof hooks in the rafter area.
Page 15
Assembly roof-tile clamps with lead Place the first mounting tab so that the lower tile is covered. Additionally make sure that the mounting tab is put sideways under the adjacent tiles (bend up mounting tabs sidewise). Mount the roof-tile clamps without covering the lower tile. The roof-tile clamp must not cover the lower tile.
Assembly plain tile clamps without lead Use the roof-tile for roof-mounted installation for plain tile roof covering also for slate, shingle and prefa covering. Fixation of the lower lath 24x80x600 mm with two screws 4x50 mm. If the lath is placed near the counter lath, the lath 24x80x600 mm must not be applied.
Assembly plain tile clamps with lead Fixation of the lower lath 24x80x600 mm with two screws 4x50 mm. Assembly of the upper tile clamp support 100x80x25 mm with two screws 5x60 mm. When mounting the field in regions with snow load zone III and higher or with expected increased snow loads, it is necessary to place the roof hooks in the rafter area.
Page 18
Assembly plain tile clamps with lead Fixation of the roof-tile clamp with two screws 5x60 mm. Screw the lower one into the tile lath and the upper one into the tile clamp support. Completely mounted roof-tile clamp with lower lead sheet. The tile clamp must have a minimum distance to the underlying tile of 5 mm.
(see page 20). If the roof clamps cannot be mounted within the limits indicated on page 10, you first have to mount horizontal or vertical STI system profiles onto the roof clamp. Afterwards the added fastening profiles are mounted.
Assembly mounting profiles Readily mounted tile clamps for one collector field with two collec- tors. Top: Tiles left out and clamp set with mounting tabs assembled Bottom: Tiles coarsly ground and clamps assembled without mounting tabs Dachhaken Place the T-head screws laterally into the profile into any groove. 1400026 Profile set Alu 240V and 270V or 1400027 Profile set Alu 240H or 1400028 Profile set Alu 270H...
Page 21
Assembly mounting profiles In the border area of the fastening profile to be mounted the connection profile has to be put in and centered; also at an angle of 90° to the T-head screw. 1400022 Connection set for profile set Before fixing the connection profile, the next fastening profile with preassembled collector edge is mounted.
Assembly collectors Single-row collector field In case of single-row collector fields the collectors are installed starting with the respective outer collector. The precise installation of the collectors is described from page 26. single-row collector field Assembly sequence Multi-row collector field In case of multi-row collector fields the superimposed collectors are installed first of all.
Page 23
Assembly collectors Assembly sequence In case of multi-row installations the collectors are to be mounted adjoining. The lip (collector covering) of the top collector is set over the lower collector. The lip (collector covering) of the lower collector is clamped into the joining area so that an optimum waterflow is guaranteed.
Page 24
Assembly collectors Multi-row collector fields with distance metal sheets It is possible to assemble metal sheets between the collectors to achieve a homogeneous appearance of the installation. The distance metal sheets are assembled exclusively for optical aspects and do not have any influence on the installation.
Page 25
Assembly collectors By removing the lip (collector covering) on the appropriate place the distance metal sheets can easily be mounted. When mounting the upper collector, pay attention that the lip (collector covering) of the lower collector is covered by the upper collector (see figure page 23). The assembly of the collectors is illustrated on the following pages.
Page 26
Assembly collectors Placement of the first collector. Place the collector on the upper profile rail and put it down on the lower one. Make sure that the back panel of the collector is not damaged by any protruding parts. The collector is applied to the profile of the collector stop set. The stop set profile has to be mounted so that it can be fixed indented maximal 20 cm from the outer edge of the collector.
Page 27
Assembly collectors Before mounting the following collectors, the compensator has to be installed on the flush protruding copper flange. It is important to ensure that the o-ring seal is used for the compensator. 1300001 Collector connection set hydraulical Fixation of the compensator on one side with the clamp. Before tightening of the screw the clamp must be positioned by a rotary motion up and down.
Page 28
Assembly collectors Tighten the clamp on the compensator. Pay attention to the correct position of the clamp and the o-ring seals. Install the fastening plates single on the edge and tighten them. Do not exceed the tightening torque of 37 Nm. Tighten the fastening plate double.
Arrangement hydraulic connections is mounted on all non-used collector connections. 1310009 Cap set Connection 3/4“ 1310005 Collector connection set R3/4“ (2 pcs. compl.) Connection for reductions 1310001 Collector connection set 12 mm (2 pcs. compl.) 1310002 Collector connection set15 mm (2 pcs. compl.) 1310003 Collector connection set18 mm (2 pcs.
Hydraulic connection with manifold Hydraulic connections for multi-row systems O-ring seal 20 mm Elbow collecting pipe Elbow collecting pipe connection connection O-ring seal 20 mm O-ring seal 20 mm T-single collecting pipe T-single collecting pipe connection connection O-ring seal 20 mm Place O-ring 20 mm on Place O-ring seal 20 mm O-ring seal...
Overview hydraulic connections / accessories Hydraulic connections Exhauster connection Collector connection 3/4“ Collector connection 22 mm For the installation at the for thread fittings for soldered fittings or clamping collector without extension ring joints Collector connection 18 mm Collector connection 15 mm Collector connection 12 mm for soldered fittings or clamping for soldered fittings or clamping...
Assembly distance metal sheets It is possible to mount metal sheets between the collectors for a homogenous appearance. The distance metal sheets are only assembled for optical aspects and do not have any functional influence on the system. Therefore, the distance metal sheets have to be ordered seperately and are not necessarily included in the delivery. Distance metal sheets for the assembly in one row For the collector types FKA 240 V and FKA 270 V in every gap between the collectors two distance metal sheets are...
Pipe dimension of the connecting pipe Recommended pipe dimension of the connecting pipe Length of pipe F + BF up to 10 m from 10 m from 15 m to 15 m to 20 m Number of collectors 2 coll. - 132 L/h 12 x1 15 x 1 15 x 1...
Page 34
Pipe dimensions of the connecting pipe Recommended pipe dimensions of the connecting pipe Length of pipe F + BF from 40 m from 45 m from 50 m from 55 m to 45 m to 50 m to 55 m to 60 m Number of collectors 2 coll.
Initial operation Initial operation After installing the other components such as flow An annual review is recommended. The following compon- ents must be checked for proper function (if installed): pipe, return pipe, insulation, pump group, expansion tank and controller the installation can be put into •...
Need help?
Do you have a question about the FKA 240 Series and is the answer not in the manual?
Questions and answers