30
CONCENTRIC TERMINATION INSTALLATION PREPARATION
1.
Concentric terminations must be ordered separately. All models
must use the four-inch concentric termination; Part Number:
100111100 for both three-inch and four-inch vent diameters or
the two-inch terminal (100153586 ) for two-inch diameter pipe.
Contact your local distributor or call the parts department phone
number on the back cover of this manual to order concentric
terminations.
2.
Determine the location for the termination.
Note:
Roof termination is preferred since it is less
susceptible to damage, has reduced chances
to intake contaminants and vent vapors are less
visible.
3. When installing a concentric termination vertically through the
roof; ensure that all exterior vertical clearance requirements for
the concentric termination, shown in
are
being maintained. These clearances and those cited by local
and national codes must be maintained.
4.
When installing a concentric termination vertically through a
flat roof, the termination's vent cap must be a minimum of 10
feet (3 m) away from any parapet, vertical wall or structure as
shown in
.
CONCENTRIC TERMINATION(S)
MUST BE A MINIMUM OF 10 FEET
(3 m) AWAY FROM ANY PARAPET,
VERTICAL WALL OR
STRUCTURE.
VENT PIPE
INTAKE AIR PIPE
Figure 27. Concentric Termination - Flat Roof Clearance
Note:
If this required 10 foot (3 m) distance to a parapet,
vertical wall or structure cannot be maintained,
standard terminations must be used. See
5.
When installing a concentric termination through a sidewall;
ensure that all exterior sidewall clearance requirements for
the termination, shown in
(page 38), are being
maintained. These clearances and those cited by local and
national codes must be maintained.
6. When installing multiple concentric terminations vertically
through a roof or horizontally through a sidewall ensure the
required clearances between terminations and groupings of
multiple terminations are maintained. See pages 32 and
7.
Cut a 5 inch (13 cm) diameter hole for the four-inch concentric
terminal, or a three-inch hole for the two-inch terminal, where
the termination will pass through the wall or roof.
Note:
Beware of concealed wiring and piping when
cutting through the wall or roof.
8.
When installing multiple concentric terminations vertically
through the roof in the same location, the termination caps for
all concentric terminations must be at the same height measured
from ground. See
Multiple Concentric Termination Clearances
9.
Determine if the concentric termination will need to be shortened
to accommodate required clearances or to ensure all vent caps
are at the same height when installing multiple terminations
vertically through the roof in the same location.
• See
for the minimum lengths al-
lowed for the concentric termination.
Note:
When shortening the length of the termination,
carefully measure and cut the larger (intake air)
pipe first. Cut the same amount of pipe from the
smaller (vent) pipe.
Note:
Lengthening of the Concentric Vent Termination is
not permitted.
10.
Proceed to
Concentric Termination Installation Preparation
.
Содержание SUF 60120 THRU
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