Operating instructions

17
ENG
(see figure 6/b - 6/d)
NOTE: The vent termination must be at least
3 ft. (1 m) to a maximum of 6ft. above the roof
line and 2 ft. (.61 m) higher than any part of a
structure within 10 ft. (3.1 m). The total verti-
cal distance of the vent system from appliance
flue collar to the rain cap termination and the
maximum length of offsets shall not exceed
that specified in the appliance manufacturer’s
installation instructions. No continuous verti-
cal run shall be longer than sixty feet (18.3 m).
All horizontal sections must observe the rules
for HORIZONTAL VENTING. The clearance to
combustibles inside a chase shall be no less
than 4” (100 mm).
1. Prior to beginning the installation loosely
assemble all parts required to make sure
all parts are present.
2. Locate position for venting system and
proceed to cut holes for firestop support
and firestop spacers. All vertical installa-
tions require the use of a support. Frame
the opening of the floor using lumber,
which is dimensionally consistent with the
structural members. Insert the support
from beneath the framed opening and
secure with nails or screws as required.
3. Refer to JOINT PROCEDURE (figure 6)
before assembling system.
4. Install system joining pipe as required
up through roof (illustration page 25).
Tighten gear clamp on firestop support to
hold vent system. NOTE: A firestop must
be provided when a vent passes through
a combustible floor or ceiling. The opening
must be framed for the support since the
support also serves as a firestop.
5. The roof flashing can now be installed.
Where the vent passes through the roof
a flashing must be used to maintain the
required clearances and to protect from
the elements. The framed opening must
be large enough to provide the necessary
clearances to combustibles, taking into
account the slope of the roof. The flashing
can be used on slopes from flat to 6/12
pitch. Install the flashing while holding the
pipe centered in the opening. Fasten the
flashing to the roof under the roofing
material upslope from the pipe and above
the roofing material below the pipe. Seal as
required using high temperature silicone.
6. Install Top Support around pipe and against
flashing collar. (figure 6/b, 6/d, 6/e,
6/c)
7. Attach rain cap using. JOINT
PROCEDURE (figure 6)
8. The vertical section is connected by an
elbow joined to the horizontal run and
then through a drain tee (see page 4
for details) to the appliance. Elbows
are joined to pipe using the JOINT
PROCEDURE (figure 6).
NOTE: If there is no solid anchor point
in the system below the roof (ie Firestop
Support etc.) then a Z-Vent Guy Band must
be used below the roof as follows. (see
figure 6/c)
a. Attach the Guy Band at any point above
an elbow or tee in the vertical section
within 20 feet of the roof.
b. Fasten stainless steel or galvanized
cable with a minimum capacity of 500
lbs. to each of the four anchor holes.
c. Anchor the cables to a rigid building
member using an appropriate fastening
method.
Above the roof
(see figure 6/c)