Figure 13 – Superior DT-400CMP User Manual
Page 9
9
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1
With the appliance secured in framing, deter-
mine vent routing and identify the exterior
termination location. The following sections
describe vertical (roof) and horizontal (exterior
wall) vent applications. Refer to the section
relating to your installation. A list of approved
venting components is shown in the tables on
pages 24 and 25.
SV4.5CGV-1
Termination
SV4.5FA OR
SV4.5FB Flashing
AND SV4.5SC
STORM COLLAR
*SV4.5BF
Firestop/Spacer
SV4.5L6/12/24/36/48
Vent Sections
40' Max
(12.2 M)
1" (25.4 mm)
Minimum
Clearance to
Combustibles
*When using Secure Flex,
use Firestop/Spacer
SF4.5BF
Figure 13
VERTICAL TERMINATION SYSTEMS (ROOF)
Vertical (Straight) Installation
Select Venting System - Horizontal or Vertical
Figures 13, and Figures 23 through 27 on
pages 12 to 13 and their associated
Vertical Vent Tables illustrate the various ver-
tical venting configurations that are possible
for use with these appliances. Secure Vent
pipe applications are shown in these figures;
Secure Flex pipe may also be used. A Vertical
Vent Table summarizes each system’s mini-
mum and maximum vertical and horizontal
length values that can be used to design and
install the vent components in a variety of
applications. Both these vertical vent systems
terminate through the roof. The minimum
vent height above the roof and/or adjacent
walls is specified in ANSI Z223.1-(latest edi-
tion) (In Canada, the current CAN-1 B149
installation code) by major building codes.
Always consult your local codes for specific
requirements. A general guide to follow is the
Gas Vent Rule (refer to
Figure 4 on page 5).
Determine the number of straight vent sections
required. 4
¹⁄₂" (114 mm), 10 ¹⁄₂" (267 mm), 22
¹⁄₂" (572 mm), 34 ¹⁄₂" (876 mm) and 46 ¹⁄₂" (1181
mm) net section lengths are available. Plan the
vent lengths so that a joint does not occur at the
intersection of ceiling or roof joists. Refer to
the Vent Section Length Chart.