Installation Guide

HOME-FLEX CSST 29
Protection
When installed outdoors, the yellow jacketing of HOME-FLEX® must be intact along the entire
run. Any areas of tubing not covered by the jacket are to be wrapped with self-bonding sili-
cone tape or sleeved to prevent damage from acids and chlorides.
If HOME-FLEX® is installed in the equipment room of a swimming pool or hot tub, or other-
wise exposed to a corrosive environment which could be harmful to the tubing, the tubing
shall be installed in a protective device, and any exposed portions of the stainless steel tubing
should be wrapped with self-bonding silicone tape, beginning on the jacket and ending on
the nut of the HOME-FLEX® tting.
Care must be taken to protect HOME-FLEX® from mechanical damage when installed along
the exterior of a building. If installed within 6 feet of the ground, HOME-FLEX® tubing must be
routed within a conduit or chase. If installed in a location where the tubing will not be subject
to possible mechanical damage, a conduit is not required, but is recommended.
HOME-FLEX® should never be buried directly underground. To route HOME-FLEX® tubing
underground, it must be protected within a nonmetallic water-tight conduit that is at least
½" larger than the outer diameter (OD) of the CSST tubing. Fittings and joints are not per-
missible in such runs—the run must be one unbroken line of tubing. Runs underneath slabs
must be sleeved and vented per local codes. (See Section 4.9, “Underground Installations” on
page 36)
Note: If installed underneath mobile homes or in crawl spaces, HOME-FLEX® should be
installed in accordance with the above Outdoor Installation Issues section.
4.4 Protection
Protection is required when HOME-FLEX® tubing is concealed, constrained, and within 3
inches of a potential threat.
HOME-FLEX® exible gas tubing must be adequately protect-
ed wherever it is at risk of damage from puncture, shearing,
crushing, or other physical threats. Tubing is to be protect-
ed at support points, and when passing through structural
members of the building such as studs, joists, and plates as
outlined in this section. If the tubing requires protection, the
measures in this section should be followed.
Striker Plates
Shielding devices (striker plates) are used to protect the
HOME-FLEX® tubing from puncture threats such as drill bits,
nails, screws, etc. Such devices are required when the tubing
is concealed and is constrained such that the tubing would
not be able to move if struck by a puncture threat.
1. At support points and areas of possible penetration less
than 2 inches away from any edge of a stud, joist, plate, etc., shielding is required both at
the area of support and within 5 inches of each side. (Figure 4.10)
2. At support points and
points of possible
penetration 2-3 inches
from any edge of stud,
joist plate, or other
member, shielding is
required throughout
the area of support.
(Figure 4.11)
3. At termination points using the HOME-FLEX® termination ange, HOME-FLEX® Flexible
Figure 4.10 Elevated View of Unsupported
Horizontal Tubing Run
3
1
⁄2"
5"
Protected Area
Protected Area
Outside
Wall
Support
Adequate
Distance for
Escape
Non-Restrained Length
(Safe From Puncture)
Less than 2"
5"
5"
26"
Figure 4.11 Shielding at Support Area When Penetration is 2-3 inches from Edge
Support Joist
Striker Plate
Between 2-3"