PRODUCT DESIGN
52
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 assem-
bly in the Y concentric fitting and the large pipe assem-
bly. 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 Fig-
ure 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
st
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
Co
m
b
u
s
t
i
o
n
A
i
r
Vent
Exhaust
Dimension "A" is touching or 2" maximum separation.
FIGURE 9
Concentric Sidewall Vent Kit (0170K00000S)
This (sidewall only) vent kit is to be used with 2” or 3” vent
systems. The vent kit must terminate outside the structure
and may be installed with the intake and exhaust pipes
located side-by side or with one pipe above the other. This
kit is NOT intended for use with single pipe (non-direct vent)
installations.
1. Determine the best location for the vent terminal. In
addition to all applicable codes, consider the follow-
ing when determining the location:
a. The vent terminal should be located so as to mini-
mize the total length and number of elbows in the
piping. Consult the furnace installation instructions
for the pipe lengths and number of elbows allowed.
b. Terminal should be positioned where vent vapors will
not damage plants, shrubs, air conditioning equip-
ment or building materials.
c. Terminal should be located where it will not be af-
fected by wind gusts, snow, airborne leaves or other
debris, and where it will not allow recirculation of flue
gases.
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