30
Venting continued-
Figure 19 - Dimensional Layout of Concentric Vent Kits
Concentric Vent Size
(A) Nominal Pipe Size
(B) in inches
2 in
2 in
3 ½ in
3 in
3 in
4 ½ in
4 in
4 in
6 5/8 in
Figure 20 - Concentric Vent Kit Part Identification
Concentric Vent Size
(A) in inches
(B) in inches
2 in
2 in
3 ½ in
3 in
3 in
4 ½ in
4 in
4 ½ in
6 5/8 in
2. Determine the best location for the termination kit.
3. Cut the recommended 3 ½ in
(8.9 cm)
diameter hole for 2 in
(5.1 cm)
vent termination, 6 5/8 in
(16.9 cm)
diameter
hole for 4 in
(10.2 cm)
vent termination, or 4 ½ in
(11.5 cm)
for 3 in
(7.6 cm)
vent termination.
4. Partially assemble vent kit by performing the following:
a. Cement concentric Y fitting to larger diameter pipe (see Figure 20).
b. Cement rain cap to smaller diameter pipe (see Figure 21).
Figure 21 - Rain Cap to Small
Vent Pipe Assembly
Содержание 100T199
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