STIEBEL ELTRON SOL 25 PLUS - Manual (Page 16)

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Roof Pitch (rise-to-run) Roof Pitch Angle Resulting Collector Tilt Angle with 45° Mount
1-in-12 4.8° 49.8°
2-in-12 9.5° 54.5°
3-in-12 14.0° 59.0°
4-in-12 18.4° 63.4°
5-in-12 22.6° 67.6°
6-in-12 26.6° 71.6°
7-in-12 30.3° 75.3°
8-in-12 33.7° 78.7°
9-in-12 36.9° not recommended
10-in-12 39.8° not recommended
11-in-12 42.5° not recommended
12-in-12 45.0° not recommended
Table 5.2.9: Resulting Inclination Angle When Mounting a 45° Kit to Various Roof Pitches
At least 25 ft. (7.6 m)
Array spacing for 45° Vertical Mounting
on a flat roof or ground.
Figure 5.2.10: Recommended row spacing for 45° vertical arrays for latitudes up to 50°.
At least 14 ft. (4.0 m)
Array spacing for 45° Horizontal Mounting
on a flat roof or ground.
Figure 5.2.11: Recommended row spacing for 45° horizontal arrays for latitudes up to 50°.