4
Refer to Table 2 for the minimum and maximum dimensions
of the vent pipe.
2.2
POSITIONING
WARNING
Poisonous carbon monoxide gas hazard.
Even though the flexible venting is insulated, it must not
be run through an unheated space.
To do so can cause residual condensation inside the
stainless steel liner. This may eventually perforate the
liner and allow vent gasses to enter the dwelling,
potentially resulting in death, personal injury and/or,
property damage.
Important : The minimum clearance of the vent pipe in
relation to combustible material is specified in Table 1
below. This clearance must be maintained all along the pipe.
Table 1 : Minimum clearance around a vent system
PORTION OF VENT
CANADA AND
UNITED STATES
Vent pipe, up to vent terminal*
3" (7,62 cm)
Vent terminal
Zero
* Do not enclose venting.
WARNING
Do not enclose the vent pipe in a ceiling or combustible
structure.
Table 2 : Maximum and minimum vent pipe length
MODEL
VENT PIPE
INSIDE. DIA.
MAX.
LENGTH
VENT PIPE
MIN.
LENGTH
VENT PIPE
VTK-53A & VTK1
7,62
cm (3")
6,10 m (20')
,91 m (3')
VTK-64A & VTK2
10,16 cm (4")
6,10 m (20')
,91 m (3')
VTK-65A, VTK3
& KLAVT0201DET
12,70 cm (5")
6,10 m (20')
,91 m (3')
VTK-54A, VTK098
& KLAVT0101DET
10,16 cm (4")
6,10 m (20')
,91 m (3')
The interior portion of the vent terminal must be installed in
an area where the temperature of the ambient and return air
is higher than 60°F
(15°C). In addition, the furnace should
be located as closely as possible to the vent terminal, so
that the ducts are as short and direct as possible.
2.2.1
Installation considerations
The vent may be installed through a wall with a minimum
thickness of 2" (5,08 cm) and a maximum thickness of 15"
(38,10 cm). Select a location for the vent terminal in
accordance with all local and national codes. The following
requirements shall be considered to be minimum
requirements that can be overridden by stricter local and
national codes.
Figure 1 : Minimum clearance
CAUTION
Ensure that the area around the side wall venter is
always free of snow, ice and debris, since these will
hamper the proper functioning of the furnace.
The vent shall not terminate:
a. Directly above a paved sidewalk or paved driveway that
is located between two buildings, and that serves both
buildings;
b. Less than 7' (2.13 m) above any paved driveway;
c.
Within 6' (1.82 m) (in Canada) of a window or door, or
mechanical air supply inlet to any building;*
d. Within 6' (1.82 m) (in Canada) from the soffit of the roof
of the structure;*
e. Above a gas meter/regulator assembly within 3' (0.91
m) of a vertical centreline of the regulator;
f.
Within 6' (1.82 m) of any gas service regulator vent
outlet, or within 3' (0.91 m) of an oil tank vent, or an oil
fill inlet;
g. Within less than 1' (0.30 m) above ground level;
Note : The vent must be located at least 1' higher than the
highest anticipated accumulation of snow.
h. Within 6' (1.82 m) of any other combustion air inlet;
Note : It is possible that, when the system in not in
operation, combustion products may reach the interior of the
building.
i.
Within 6' (1.82 m) of a property line;
j.
Underneath a veranda, porch or deck;
k.
So that the flue gasses are directed at combustible
material or any openings of surrounding buildings that
are within 6' (1.82 m);
