Installation Guide
27
Routing
HOME-FLEX® connections to replace key valves can be located in a concealed location, pro-
vided that accessibility is not readily provided.
When multiple outlets are supplied from a
single tubing run (like in a series arrangement),
each downstream outlet branch can be con-
nected to the main run using a tee tting which
can be located in a concealed location. (Figure
4.7)
Modications to Existing Systems
New Ceilings: HOME-FLEX® ttings originally
installed in an unnished ceiling location can
be concealed in the event that a ceiling is installed at a later date.
Extensions to existing tubing runs: A concealed run of tubing can be extended with a new
pipe run to feed another appliance location, so long as there is sucient capacity to supply
both appliances simultaneously. If an accessible
location for the modication is not available,
the existing run can be modied with a tee t-
ting, resulting in a concealed tting (Figure 4.8)
Repairs to existing tubing runs: Damaged tub-
ing runs should be repaired in accordance with
Section 5.2 of this guide. The repair can result in
a line splice that may be located in a concealed
location.
Outdoor Installation
ANSI LC1-CSA 6-26 contains test requirements
determining suitability for exposure of CSST to outdoor environments. HOME-FLEX® is certi-
ed to this standard and is suitable for outdoor installations. The HOME-FLEX® jacket is UV
resistant and able to withstand exposure to sunlight for a limited time. Avoid prolonged
exposure to direct sunlight to attain longevity of the jacket. When this is not possible, tubing
should be routed in a non-metallic sleeve or wrapped in self-bonding silicone tape.
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 permis-
sible 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 35)
Note: If installed underneath mobile homes or in crawl spaces, HOME-FLEX® should be
installed in accordance with the above Outdoor Installation Issues section.
Figure 4.7 Multiple Outlets Along Main CSST Run
Striker Plate
Floor
Ceiling
CSST Run
Figure 4.8 Extension of Existing Tubing Run
Striker Plate
Tee Fitting
Modied InstallationExisting Installation