Installation Guide

HOME-FLEX CSST 33
Appliance connections
minimizes the need for concealed ttings and makes the installation of gas connections
for moveable appliances easy. The ange plate should be securely fastened in place during
rough-in of the structure. It may be attached to a brace spanning between wall studs or
directly to the oor.
As an alternative to the special termination ange, a termination can be made with rigid pipe
connected to the main HOME-FLEX® system. The rigid stub-out must be fastened to the wall
or oor using a pipe ange or other rigid mounting object.
Connections made between HOME-FLEX® and movable appliances must be made with a
HOME-FLEX® Flexible Appliance Connector, or similar approved device.
Direct connections between HOME-FLEX® CSST and movable appliances are not allowed.
Direct Connection
In most localities, xed appliances may be
directly connected to HOME-FLEX® exible gas
piping systems. When located in a secure ded-
icated place, like an attic or garage, the gas
piping can be connected directly to the appli-
ance shut-o valve without installing a special
termination ange or exible appliance connec-
tor. (Figure 4.17)
Pad-Mounted Equipment
Gas equipment like pool heaters, generators,
heat pumps, and gas air conditioners that are
mounted on concrete pads should connect to
the HOME-FLEX® system at a termination tting
with either black steel pipe or an approved out-
door appliance connector. Direct connection
of HOME-FLEX® to pad-mounted equipment is
allowed when the CSST is securely supported
and protected from physical damage, so long
as such practice is permissible by local and state
codes. Any exposed tubing
should be wrapped with
self-bonding silicone tape,
sealing the tting connec-
tion.
Roof Top Equipment
Special mechanical pro-
tection of HOME-FLEX®
tubing is not required for
roof-mounted equipment
unless the tubing may be
subject to physical or envi-
ronmental damage in the location. It is recommended that the tubing be covered to protect it
from the elements. HOME-FLEX® tubing should penetrate the roof within 6 feet of the equip-
ment location, whenever possible. Long runs of tubing on the roof should be supported
with nonmetallic blocks at the intervals specic in Table 4.2, and raised above the roof at the
height dictated by local code. (Figure 4.18)
In addition to nonmetallic blocks, HOME-FLEX® can be supported with a strut or channel run-
ning from block to block. This provides a secure, damage resistant track for the CSST and
allows for the block spacing to be set at every 8 feet. The channel run should be a ⁄" gal-
vanized shallow channel with splice plates at joints and bends. HOME-FLEX® tubing should
appliance
shut-off valve
drip leg
sediment trap
(if required by code)
union
(if required by code)
Figure 4.17 Direct Connection to Fixed Appliance
Non-moveable Appliance
Union (if required
by code)
Drip Leg
Sediment Trap
(if required by
code)
Appliance
Shut-off Valve
TYPICAL:
NON-METALLIC TUBING SUPPORT
SPACING PER TABLE 4-2
*TUBING ELEVATED
4-6" TYP. ABOVE ROOF
STANDARD ROOF
PENETRATION
TUBING CLIP
CSST
HUNG CEILING
SHUT-OFF VALVE UNION
GAS
APPLIANCE
*HEIGHT OF ELEVATION BASED ON LOCAL PLUMBING/BUILDING
CODE REQUIREMENTS AND/OR WINTER ICE BUILDUP.
Figure 4.18 Roof Top Equipment Installation
CSST
Tubing Clip
Standard Roof
Penetration
Typical: Nonmetallic Tubing Support
Spacing per Table 4.2
Tubing Typically Elevated
4-6" Above Roof*
Shut-off Valve
Union
Gas
Appliance
Hung Ceiling
* Height of elevation based on local plumbing/building code requirements
and/or winter ice buildup.
Figure 4.19 Rooftop Support with Strut
CSST
Clamp
Channel
Roof
Nonmetallic Block
be rmly attached to each block with metallic
clamps designed for the strut, or other appropri-
ate fastener. Black UV resistant cable ties can be
used at intermediate points to ease the rolling
out of HOME-FLEX®. Blocks should be attached to
the roof surface in compliance with the roong
manufacturer’s instructions. (Figure 4.19)
Any HOME-FLEX® tubing run vertically up the
side of a building or on a rooftop must be pro-
tected in accordance with "Outdoor Installation
Issues" in Section 4.3.
Outdoor Appliances: Barbecue Grills, Gaslights, and Heaters
As with movable indoor appliances, movable barbecue grills, heaters, and other applianc-
es should not be directly attached to HOME-FLEX® CSST. An approved outdoor appliance
connector should be used to make the connection from
the appliance to the piping system at a special termina-
tion ange, a steel nipple, or a quick-connect device as
described in Section 2.6 (p. 7). Always follow manufac-
turer’s installation instructions. (Figure 4.20)
Non-movable outdoor appliances, such as xed barbecues,
gas lights, or heaters can be directly connected with
HOME-FLEX® so long as such connections are permissible
by local code. On a deck, the outdoor portion of the tubing
run must be supported against the sides of joists. If the
deck elevation is below the building foundation, exposed
tubing must be routed through a protec-
tive water-tight nonmetallic conduit.
Underground tubing runs must follow the
guidelines in Section 4.9 (p. 36). The
exposed end of conduit must be sealed to
prevent foreign objects (dirt, water, pests,
etc.) from entering. (Figure 4.21 and Figure
4.22)
Fireplace Installations
Most gas replaces and gas logs are considered xed appliances which can be directly con-
nected with HOME-FLEX® without a special termination ange (ANSI Z24.50). Direct delivery
Figure 4.20 Quick Connect Outlet
Inside Wall
Quick
Connect
Outlet
Outside
Wall
Striker
Plates
Enclosure Box
Flexible
Protective
Conduit
Grommet
Floor Joist
Suboor
* See manufacturer’s instruc-
tions for enclosure mounting
and Quick Connect instal-
lation.
Figure 4.21 Fixed Outdoor Appliance (Deck Mounted)
Diameter of hole shall be at least 1/2 in. great-
er than OD of tubing and shall be sleeved and
sealed in accordance with local building code
(if applicable)
Connection of CSST to grill controls/shut-off
valve shall be in accordance with the manufac-
turer’s instructions
Note: CSST shall be installed only on
inside surfaces of joists at the centerline
Outdoor Wooden
Deck
House Foundation
Figure 4.22 Fixed Outdoor Appliance (Underground Routing)
Termination Fitting
90° Elbow
Shut-off Valve
Small gab between conduit and
tting is permitted
Seal against water entry with
compound non-corrosive to stain-
less steel
Protection required up to 6
ft. above ground
Appliance Pedestal/Post
CSST
1" Max
PVC or PE Conduit*
Minimum burial depth 12” or in
compliance with local code
Recommended minimum bend radius: 6”
*ID of conduit should be at least 1/2” greater than OD of CSST
Note: Connection of CSST to equipment gas controls shall
be in accordance with the manufacturer’s instructions