Installation Instructions

32
FIGURE 4-39
Extension of existing tubing r
un
FIGURE 4-38
Appliance termination/stub-out
FIGURE 4-36
Short (2 to 6 ft.) outdoor connection to root mounted equipment
FIGURE 4-37
Long outdoor connection to roof mounted equipment
CSST fittings or
iginally installed in accessible ceiling locations may become
concealed at a later date it a permanent ceiling is installed. Precautions
shall be taken to insure that the tubing and fittings to be concealed are
adequately protected from puncture in accordance with the man
uf
acturer’
s
instructions for the installation of mechanical protection devices.
* Height of elevation based on local plumbing/building code requirements and/or
winter ice b
uildup
**When the equipment manufacturer requires the use of a flexible connector, the
CSST shall be installed in a fashion similar to that shown on Figure 4-35.
R
oof Mounted Equipment: FIGURE 4-36
-
No special
mechanical protection of the CSST is required for con-
nections to roof top equipment. Whenever possible,
roof penetrations shall be located within 6 ft of the
equipment to be connected as shown in Figure (4-36).
Long runs of tubing shall be supported with nonmetallic
blocks every 4-ft. along its outdoor length, and raised
above the roof a distance determined by local
code/practice (4-37).
Lengths of CSST which run vertically up the side of the
building shall be protected in accordance with the
guidelines for outdoor installations.