STIEBEL ELTRON SOL 25 PLUS - Manual (Page 60)

60 | SOL 25 PLUS WWW.STIEBEL-ELTRON-USA.COM
6. LIghTNINg PROTECTION ANd BONdINg
WARNING: HAVE LIGHTNING PROTECTION MEASURES CARRIED
OUT BY PROFESSIONALS.
If there is an existing lightning protection system, the collector
casing, their mounting frames, and the piping must be tied into the
lightning protection measures by professionals.
Collector Casing (Pan)
Drill into each collector from the bottom and use screw-type devices
to tie it into the lightning protection measures. Use two 1/4” (6.3
mm) diameter stainless-steel sheet metal screws for each collector.
The drill holes should be predrilled to a diameter of 3/16” (5 mm).
See
Figure 29 for locations of holes.
Piping
Make the piping connection by means of pipe clamps in the
immediate vicinity of the collectors (above the roof). (Note
possibility of corrosion. Use only compatible metals for fastening to
the aluminum collector pans and mounting hardware.)
Mounting Frame
Connect the mounting frame to the lightning protection equipment
separately via screw-type or clamp connections. Connect the
forward and return piping to the building’s equipotential bonding
system (ground) at frequent intervals.
Min. 4 inches
On each collector, drill two 3/16"
diameter holes in the hatched
area and make the connection to
the lightning protection equipment
with two 1/4" diameter stainless
steel sheet metal screws.
29
Figure 29: Attachment of bonding wire for lightning protection.