33
SSCBL-RPBL-IOM (10-22) 149159-C
⚠ DANGER ⚠
To prevent combustion products from entering the occupied space, all vent terminals must be
positioned or located away from fresh air intakes, doors, and windows. Failure to comply could
result in severe personal injury or death and/or property damage.
1 . Determine vent terminal location on roof:
a . If more than one vertical vent terminal is being installed, minimum spacing between vent center lines is
determined by minimum outdoor design temperature (coldest outdoor condition at installation site) . Refer to
to ensure that location complies with minimum outdoor design temperature requirements .
b . Select location away from fresh air intakes, allowing space for concentric adapter box inside . Vent terminal
must be located away from adjacent buildings as shown in
.
Figure 25. Option CC2 Installation
Table 18. Minimum Spacing Between Center Lines of Vertical Vent Pipes
Minimum Outdoor Design Temperature
Minimum Spacing Between Center Lines of Vertical Vent Pipes
(Inches (mm))
≥
31°F (
≥
0°C)
36 (914)
−
10 to 30°F (
−
23 to
−
1°C)
60 (1524)
<
−
10°F (<
−
23°C)
84 (2134)
Shaded area represents
required continuous
(no joints) section of
vent pipe. Section of
pipe may extend higher.
Vent Pipe
Rear
View
Side View
