DCVK Concentric Vent Install Instructions

3
type for 2” and 3” vents.
NOTE: Feet of pipe is whichever pipe run is the longest,
either inlet or outlet side.
2. Determine the best location for the termination kit.
See Figure 3 for vertical termination or Figure 6 and Figure
7 for horizontal termination. Roof termination is preferred
since it is less susceptible to damage, 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/shrubs,
other equipment and building materials
b) possible damage to the terminal from foreign objects
c) wind effects that may cause recirculation of flue
products, debris or light snow
d) visible vent vapors
Vent
Maintain 12" (18" for Canada)
minimum clearance above highest
anticipated snow level. Maximum of
24" above roof.
Combustion Air
Roof Boot/Flashing
(Field Supplied)
Support (Field Supplied)
45 Elbow
(Field Supplied)
Combustion Air
Vent
FIGURE 3
3. Cut one 5” diameter hole through the structure for the
DCVK-30 kit or one 4” diameter hole for the DCVK-20 kit.
4. Refer to Figure 4 for Concentric Vent Dimensional Draw-
ing and refer to Table 1 for Concentric Vent Dimensions.
1 1/2"
A
C
D
PVC Intake/Combustion Air
B
1 3/16"
B PVC Vent/Exhaust
FIGURE 4
MODEL A* B C D**
DCVK-20 33 3/8 2 3 1/2 16 7/8
DCVK-30 38 7/8 3 4 1/2 21 1/8
* Dimension will change accordingly as Dimension D is lengthened or shortened.
** Dimension D may be lengthened to 60” and may also be shortened by cutting
the kit provided pipes to 12” minimum.
TABLE 1
5. Partially assemble the concentric vent termination kit.
Clean and cement the parts using the procedures for
Joining Pipe and Fittings section of the furnace installation
manual.
a) Cement the Y Concentric fitting to the larger diameter
kit pipe (See Figure 2)
b) Cement the rain cap to the small diameter kit part (See
Figure 2).
NOTE: A field supplied stainless steel screw may be used
to secure the rain cap to the pipe instead of cementing when
field disassembly is desired for cleaning (See Figure 5).
Stainless Steel Screw
(Field Supplied)
Drill clearance hole in rain cap
and pilot hole in vent pipe.
FIGURE 5
6. Install the Y concentric fitting and the pipe assembly
through the structure’s hole. For vertical termination, install
the parts through the field supplied roof boot/flashing.
NOTE: Do not allow insulation or other materials to accu-
mulate inside the pipe assembly when installing through the