STIEBEL ELTRON SOL 25 PLUS - Manual (Page 15)

WWW.STIEBEL-ELTRON-USA.COM SOL 25 PLUS | 15
EN
g
L
IS
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M10 nuts
M10 bolts
Frame Connectors
96.3 in.
48.1 in. 24 in. 48.1 in.
144.4 in.
24 in. 48.1 in.
Brace
R2 Profile Rail
(2-collector width)
R1 Profile Rail
(1-collector width) Frame
Splice
R2 Profile Rail
(2-collector width)
9
10
intervals of ≤ 82 in. (210 cm) for horizontal
installation or ≤ 43 in. (110 cm) for vertical
installation.
5. If installing two or more collectors, the
triangle trusses are to be positioned at the
midpoint, behind the collectors.
6. Whenever two or more triangle trusses
are installed, brace the center span with a
cross-brace, as shown in Figure 8.
7. When installing four or five trusses, brace
both end spans with crossbraces, as shown
in
Figure 9. For six or more trusses, cross-
braces should also be placed in an inside
span.
8. If multiple flat-roof mounting frames are
being set up next to one another, use frame
connector (splice) kits (SFC001, shown in
Figure 10) to join them, as shown in Figures
9 and 11. Line up the mounting supports
with a string so that the mounting frames
will be aligned properly.
9. Fasten the flat-roof mounting racks to the
roof in an appropriate manner, or weight
them down with at least 400 lbs. (180 kg) of
solid, dead weight (e.g. concrete slab) per
collector if the installed height is less than
25 ft (8 m). Remember to take the static and
dynamic (e.g., wind) loading into account for
the roof structure.
10. For installed heights above 25 ft. (8 m),
weighting is not advisable due to the higher
wind loading conditions. In this case, the
holes in the horizontal support base (SE45-
110B) should be used to fasten the mounting
hardware to the roof (six M6 bolts per
horizontal support).
Multiple Rows of Collectors:
If multiple arrays of collectors are being
installed on a flat roof, one behind another,
the recommended spacing between them
should be:
• at least 25 ft. (7.6 m) for vertical
installation, as shown in
Figure 12; or
• at least 14 ft. (4.0 m) for horizontal
installation, as shown in
Figure 13.
This spacing prevents excessive shading
from adjacent rows for latitudes of up to
50°. For latitudes significantly higher than
50°, multiple rows of collectors may not be
practical due to low sun altitude angles.
Figure 9: Multiple-collector framing arrangement, with frame connectors and cross-bracing.
Figure 10: SFC001 Frame Connector (Splice) kit.
Figure 11: SFC001 Frame Connector (Splice) kit.
Frame Connector (splice) to
join two profile rails
Profile rails
11