Instructions / Assembly

9
prior to construction. Note that the enclosure
requires an access door for inspection and
maintenance purposes.
10. Terminations. Where the Pipe Sections
pass through the roof, a hole must be cut to
provide a minimum clearance (air space) of
1 inch between the Pipe and construction
materials. Straight lengths of pipe are run up
above the roof a minimum of 1-foot. (Refer
to Table 2) A Roof Flashing is placed down
over the pipe, and adjusted so it ts tightly
against the roof, with the Pipe Section held
in a position maintaining the 1 inch minimum
clearance from combustibles. The Flashing is
then nailed to the roof. The roong material
(shingles, asphalt paper, etc.) should overlap
the top edge (uphill side) of the Flashing.
A non-hardening sealant should be used
around the edges of the ashing base where
it meets the roof. Non-hardening sealant is
placed around the joint between the Flashing
and the vertical Pipe Section and the Storm
Collar is then placed over this joint, to make
a watertight seal. (Figure 12) Add sufcient
Pipe Sections to attain the minimum height
specied in Table 2 (see next page). To
connect the Termination Cap to the pipe, hold
Cap by its collar, slide collar over locking lugs
of pipe, and twist-lock clockwise. Termination
Caps of diameters greater than 16 inches do
not twist-lock, but are afxed with sheet metal
screws.
11. Inspection. This completes the installation
steps. Conduct a nal inspection to ensure
that all joints are secure, the system is
properly supported, and is mechanically
sound. Especially verify that the one-inch
clearance to combustibles requirement has
been met, and that adequate combustion air
will be furnished to the appliance.
Figure 12
HIGH
WIND
CAP
STORM
COLLAR
FLASHING
1 INCH
MINIMUM
CLEARANCE
CAPS ARE
INTERCHANGEABLE
DURACAP
CAP
SEALANT
SEE
TABLE 2
1 INCH
MINIMUM
CLEARANCE
Figure 11
1 INCH
MINIMUM
CLEARANCE
(ALL SIDES)
TEE CAP
TEE
REMOVABLE
ACCESS
DOOR/PANEL
FOR CLEANING
AND
INSPECTION
FRAMED
ENCLOSURE
GAS APPLIANCE
WALL
THIMBLE
WALL STRAPS
WALL STRAP