DCVK Concentric Vent Install Instructions

4
structure’s hole.
7. Secure the assembly to the structure as shown in Figure 3
or Figure 7 using field supplied metal strapping or equivalent
material.
NOTE:
• Ensure that the strap is installed to prevent movement of
termination kit in side wall.
• Ensure the termination height is above the roof surface or
anticipated snow level as shown in Figure 3 for vertical
termination.
• Ensure the termination location clearance dimensions are
as shown in Figure 6 and Figure 7 for horizontal termination.
Roof Overhan
g
12" min.
C
o
m
b
u
s
t
i
o
n
A
i
r
Maintain 12" clearance above
hi
g
hest anticipated snow level
or
g
rade, whichever is
g
reater.
Vent
1" max.
FIGURE 6
Vent
Combustion Air
Flush to
1" maximum
45 Elbow
(Field Supplied)
Combustion Air
Vent
Strap
(Field Supplied)
FIGURE 7
8. Install the rain cap and the small diameter pipe assembly in
the Y concentric fitting and the large pipe assembly. Ensure
that the small diameter pipe is bottomed out and securely
cemented in the Y concentric fitting.
9. Cement the furnace combustion air and vent pipes to the
concentric vent termination assembly. See Figure 3 or
Figure 7 for proper pipe attachment.
10. Operate the furnace through one heat cycle to ensure
combustion air and vent pipes are properly connected to the
concentric termination connections.
MULTI-VENT TERMINATION CLEARANCES
When two (2) or more furnaces are vented near each other,
each furnace must be individually vented.
Two (2) vent terminations may be installed as shown in Figure
8 and Figure 9, but the next vent termination must be at least
36” away from first 2 terminations. It is important that vent
terminations be made as shown to avoid recirculation of flue
gases.
"A"
E
x
h
a
u
s
t
Combustion Air
12" Min. Grade
(18" for Canada)
or Snow Level
Dimension "A" is touching or 2" maximum separation.
FIGURE 8
1" Maximum
(TYP.)
"A"
Vent
C
o
m
b
u
s
t
i
o
n
A
i
r
Vent
Exhaust
Dimension "A" is touching or 2" maximum separation.
FIGURE 9
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5151 San Felipe, Suite 500, Houston, TX 77056
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