SYSTEM OPERATION
18
3” MIN
12” MIN TO GRADE OR HIGHEST
ANTICIPATED SNOW LEVEL
12” M IN SE PARATION
3”MIN
24”MAX
Direct Vent
Terminal
50,000 Btuh
or less
9"
12"
12"
12"
Direct Vent Terminal
More than 50,000 Btuh
Forced Air Inlet
3'
1. The vent termination must be located at least 12” above
ground or normally expected snow accumulation levels.
2. Do NOT terminate over public walkways. Avoid areas
where condensate may cause problems such as above
planters, patios, or adjacent to windows where steam
may cause fogging.
3. The vent termination shall be located at least 4’
horizontally from any electric meter, gas meter, regulator
and any relief equipment. These distances apply ONLY
to U.S. Installations.
4. The vent termination shall be located at least 3’ above
any forced air inlet located within 10’; and at least 10’
from a combustion air intake of another appliance, except
another direct vent furnace intake.
5. In Canada, the Canadian Fuel Gas Code takes
precedence over the preceding termination instructions.
3" or 4" Diameter
SDR-26 Pipe
2 or 2 1/2" Diameter
SDR-26 Pipe
2" or 3" Diameter
Y Concentric Fitting
2" or 3" Diameter
Rain Cap
These kits are for vertical or horizontal termination of the
combustion air inlet and the exhaust vent pipes on Category
kit can be used for 3” diameter pipe systems. The DCVK-
20 (CVENT-2) kit can be used for the 2” diameter pipe
system. Both the combustion air inlet and the exhaust vent
pipes must attach to the termination kit. The termination kit
must terminate outside the structure and must be installed
per the instructions outlined below for vertical or horizontal
termination. Vertical termination is preferred. Field supplied
1. Determine the best location for the termination kit. Roof
termination is preferred since it is less susceptible to dam-
age, has reduced intake contaminants and less visible
vent vapors. For side termination, consideration should
be given to:
a. Possible damage from the vapors to plants/shurbs,
other equipment and building materials
b. Possible damage to the terminal from foreign objects
products, debris or light snow
d. Visible vent vapors.
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