Installation Guide
Table Of Contents
- Chapter 1: Introduction
- Chapter 2: Description of System Components
- Chapter 3: Sizing and Configurations
- Chapter 4: Installation Practices
- Chapter 5: Inspection, Repair, and Replacement of CSST
- Chapter 6: Pressure Test Procedures
- Chapter 7: Sizing/Capacity Tables
- Chapter 8: Technical Information Sheet
- Chapter 9: Definitions
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Installation Practices
grommets, bushings, HOME-FLEX® Flexible Protective Conduit, PVC tape, thermal contraction
sleeve material, or a minimum of four wraps of 10 mil duct tape.
Concealed Locations for Fittings
The HOME-FLEX® mechanical attachment ttings have been tested and are listed per the
requirements of ANSI LC1 and CSA 6.26 Standard (USA and Canada). This specication pro-
vides test requirements which certify ttings for concealed installations and connections to
appliances where concealing the ttings is the only practical alternative
These guidelines address some of the known situations which may require the use of a con-
cealed tting. While accessibility of ttings is always preferred, there are some situations
where concealing the ttings is the only practical option. This guide cannot address all appli-
cations of concealed ttings, but instead provides general instructions to demonstrate the
principles which apply to ttings listed for installation in concealed locations (National Fuel
Gas Code, NFPA 54 Chapter 7).
NOTE: Manifold stations which are composed of multiport manifold(s), shut o valve, and
pressure regulator shall not be installed in concealed locations regardless of the qualica-
tions of tubing ttings.
New Installations
HOME-FLEX® can be connected to steel piping systems through threaded pipe connections.
This can be a sub-out run to an appliance connection, be outdoors to a meter, etc.
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 sin-
gle 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
4.8)
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 4.9)
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 cer-
tied 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.
Figure 4.8 Multiple Outlets Along Main CSST Run
Striker Plate
Floor
Ceiling
CSST Run
Figure 4.9 Extension of Existing Tubing Run
Striker Plate
Tee Fitting
Modied InstallationExisting Installation