1.2.4 Placement
Fig. 18: Flat roof holder clearances
a
Distance of holders
b
Collector overhang
(a), (b) see
Tab. "Number of required flat roof holders and
spacing", p. 17
Number of required flat roof holders and spacing
Designation
Number of flat roof holders
Holder spacing (a) ± 100 [mm]
Collector overhang (b) [mm]
Number of flat roof holders
Holder spacing (a) ± 80 [mm]
Collector overhang (b) [mm]
Number of flat roof holders
Holder spacing (a) ± 50 [mm]
Collector overhang (b) [mm]
Determining the installation angle
Installation angle (=
slope angle) α [º]
25
30
35
40
45
50
55
60
At an installation angle smaller than 40º, it is necessary to
1)
shorten the support rail S by the measurement specified.
SOLVIS FDS SolvisFera · Technische Änderungen vorbehalten 09.16 · E 63-M
SolvisFera
F-552
F-652
3
4
1240
1170
620
580
4
5
950
950
475
475
5
6
740
780
370
390
Installation angle setting
Shortening size for
C [mm]
S [mm]
105
360
278
360
525
360
89
-
274
-
486
-
734
-
1071
-
1 Flat roof holders Fera Installation Guide EN
c
Fig. 19:Flat roof holder, dimensions and installation angle
3
F-802
5
1120
560
max. 200
6
Fig. 20: Setting up the flat roof holder
950
475
Low Slope Surfaces
Low slope surfaces present special cases in terms of
7
setting up flat roof holders.
800
400
If the collectors are to be installed on low slope surfaces
(roof slope angle in relation to horizontal = γ) using flat
roof holders, a flat roof holder installation angle (= β) of a
maximum of 20º is permitted. The overall slope of the
collector α in relation to horizontal may not exceed 60º.
1)
Fig. 21: Angle on low slope surfaces
s
α
1989
2
max. 200
1 2 3
α
1
max. 200
α > 20°
α = β + γ
β
γ
17