Installation Instructions

Proper bonding and grounding may reduce the risk of damage and fire from lightning strikes. Lightning is
a highly destructive force. Even a nearby lightning strike that does not strike a structure directly can
cause metallic systems (such as wiring, piping and ductwork) in the structure to become energized. If
these systems are not properly bonded, the difference in potential between the systems may cause the
charge to arc from one system to another and cause damage to the CSST. Bonding instructions set forth
above should reduce the risk of arcing and its related damages.
Depending upon conditions specific to the location of the structure in which the Pro-Flex® system is
being installed, including but not limited to whether the area is prone to lightning activity, the owner of
the structure should consider whether a lightning protection system is necessary or appropriate. Lightning
protection systems are beyond the scope of this manual, but are covered by NFPA 780, the Standard for
the Installation of Lightning Protection Systems, and other standards.
As with all Pro-Flex® guidelines, the techniques outlined within this manual/bulletin are subject to all
local fuel gas and building codes.
*LIGHTNING SAFTY WARNING
PROPERLY BONDING and grounding the Corrugated Stainless Steel Tubing (CSST) system
may reduce the risk of damage and fire from lightning strike. Lightning is a highly destructive
force. Even a nearby lightning strike that does not strike a structure directly can cause systems in
the structure to become electronically energized. Differences in potential between systems may
cause the charge to arc between systems. Such arching can cause damage to CSST, including
holes. Bonding should reduce the risk of arching and related damage.
29
Note: Bonding wire must be no
smaller than 6 AWG
Drawing 3
Note: Bonding wire must
be no smaller than 6 AWG
Drawing 2
Note: Remove any paint
on pipe surface beneath
clamp location
Note: Remove any paint on pipe surface beneath clamp location
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