Dettson Chinook C15-M-V Instructions D'installation Et Manuel Du Propriétaire page 24

A vent for this appliance shall not terminate:
-over public walkways;
-near soffit vents or crawl space vents or other areas
where condensate or vapor could create a nuisance or
hazard;
-near regulators, relief valves, or other equipment where
condensate or vapor could be detrimental to their
operation;
See figures 28 and 29 for venting clearance.
7.10.1 Concentric vent
For multiple concentric installation, spacing of minimum
12" between each concentric is required. Figures 20
and 21 show the required clearance for concentric
installation.
For installation through the roof or side wall, cut one 4"
(102 mm) diameter hole for 2" (51 mm) kit, or one 5"
(127 mm) diameter hole for 3" (76 mm) kit in the desired
location. Loosely assemble concentric vent/combustion
air termination components together following the kit
instructions. Slide the assembled kit with rain shield
REMOVED through the hole in the wall or roof flashing.
NOTE: Do not allow insulation or other materials to
accumulate inside the pipe assembly when installing it
through the hole. Disassemble loose pipe fittings. Clean
and cement using the same procedures as used for
system piping.
Figure 20 – Roof concentric termination
Figure 21 – Sidewall concentric termination
7.10.2 Two pipe termination
Maintain the required distance between vents or pairs
of vents. Cut the required number of holes in the roof
or sidewall for vent and combustion air pipes. Sidewall
holes for two pipes vent terminations should be side-by-
side, allowing space between the pipes for the elbows to
fit on the pipes. Holes in the roof for two pipe terminations
should be spaced no more than 18" (457 mm) apart.
Termination elbows will be installed after the vent and
combustion air pipe are installed.
Combustion air intake can be snorkeled to acheive 12"
min distance from expected level of snow and/or ground.
Figure 22 – Roof termination
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