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3 vertical 45° mounting on the ground, 4 vertical 45° mounting on a pitched roof – STIEBEL ELTRON SOL 25 PLUS User Manual

Page 15

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SOL 25 PLUS |

15

EN

G

L

IS

H

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)

M10 nuts

M10 bolts

Frame Connectors

Frame Connector (splice) to

join two profile rails

Profile rails

Figure 5.2.8: Multiple-collector framing arrangement, with frame connectors andcross-
bracing.

Figure 5.2.7: SFC001 Frame Connector (Splice) Kit.

Figure 5.2.6: SFC001 Frame Connector Kit.

5.2.3 Vertical 45° Mounting On The
Ground

Procedures described above for mounting of
collectors upon a flat roof apply to ground
mounting, except for the following:

1. Installer must ensure that the mounting
foundation for the system is not subject to
movement, such as frost heaves. Therefore, it
is necessary to install footings below the frost
line in locations subject to freezing weather.
If it is not possible or practicable to avoid
movement due to frost, etc., it will be necessary
to provide a floating frame that does not flex
or warp the collectors’ mounting frames if the
ground shifts or heaves.

2. Ground mounting configurations may be
prone to damage from falling ice or nearby
vehicles or other hazards. Appropriate
precautions should be taken to mitigate these
hazards.

3. Ground mounting often requires longer
outside piping runs, so proper insulation
and protection of collector piping essential.
Installers should consider laying pipe runs
below grade to avoid damage and to mark the
location of these runs to avoid damage from
digging operations.

5.2.4 Vertical 45° Mounting On A
Pitched Roof

Procedures described above for mounting of
collectors upon a flat roof apply to mounting
on a pitched (sloped) roof, except for the
following:

1. Use of weights to secure collectors and
mounting hardware is not advisable. Collector
mounting frames should be fastened to all
pitched roofs in an appropriate manner.

2. The 45° mounting kits add 45° to an existing
roof pitch, as shown in table 5.2.9. Roofs with
pitches above 9-in-12 generally should not use
this mounting kit, as the resulting collector tilt
angle will be too steep for almost any location.