ECR International G95V Installation Manual And Operating Instructions page 20

FIGURE 9 - PERISCOPED VENT DETAIL
FIGURE 10 - VERTICAL VENTING
If it is not possible to obtain proper clearance to
grade by a straight out configuration, the termina-
tion may be raised by the use of a pair of 90° el-
bows. (Figure 9, Exhaust Detail Only)
NOTE: Length of pipe and elbows count toward maximum
allowable vent length as shown in Table 4 (below).
The venting system must stay consistent in re-
gards to pipe diameter through out the entire
vent length. The vent may also terminate in a ver-
tical venting configuration through the roof. No ter-
mination fitting is required.
The exhaust pipe extending through the roof must
extend 18" above the highest point where it extends
through the roof, surface and above any obstruc-
tion within an 18" horizontal distance. (Figure 10)
Exterior vent pipe greater than 24" should be insu-
lated with ½" insulation to prevent moisture from
freezing within the pipe and accumulating.
Size the exhaust pipe as specified in Table 4 - Di-
rect and Non-Direct Vent Lengths. This table lists
the maximum allowable length of pipe with respect
to the number of 90° elbows used. For the purpos-
es of this calculation, one 90° elbow is equivalent
to two 45° elbows.
Avoid locating the terminal in locations where drip-
ping condensate may cause problems such as side-
walks, patios, above planters, near windows where
exhaust gases may cause fogging, etc. Avoid locat-
ing the termination too close to shrubs and other
vegetation. The condensate may stunt or kill them.
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Moisture in the flue gases condenses as it
leaves the terminal. This moisture can freeze
on exterior walls, on soffits, and other near-
by objects. Some discoloration is to be ex-
pected; however, improper location or instal-
lation can cause structural or exterior finish
damage to the building.
Caulk all cracks, seams or joints within a 6 foot ra-
dius of the termination.
Do not terminate under a deck unless there is ad-
equate clearance to prevent damage from the flue
gases. A termination may be located at the end of a
patio deck. Piping running beneath the deck must
be suitably insulated and suspended in a manner to
prevent condensate from collecting and freezing.
Do not locate the terminal on the side of the build-
ing facing the prevailing winter winds.
IN CANADA
In addition to the general guidelines, in Canada,
the non-direct vent exhaust shall not terminate:
• Directly above a paved sidewalk or paved
driveway which is located between two single-
family dwellings and serves both dwellings;
• Less than 7 feet above a paved sidewalk or
paved driveway located on public property;
• Within 6 feet of a mechanical air supply inlet
to any building;
• Above a meter/regulator assembly within
3 feet horizontally of the centerline of the
regulator;
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CAUTION