20
Direct Vent - Vent Installation - Sidewall
1. Vent and Combustion Air Penetration
-
Vent pipe penetration through combustible or
non-combustible wall material should maintain a
minimum 1/4” [6mm] clearance for 3” and 4”
PVC/CPVC vents or 1” for 2” PVC/CPVC Vents.
The diameter of the penetration hole should be
4” [10.2 cm] minimum for 2” and 3” pipe or 5”
[12.7 cm] minimum for 4” pipe. When using
Polypropylene or Stainless Steel vent refer to
vent manufacture’s installation instructions, sup-
plied with the vent for clearances.
-
Combustion air pipe penetration can maintain
zero clearance. The diameter of the penetration
hole should be 2-3/8” [6 cm] minimum for 2” pipe
or 3-1/2” [8.9 cm] minimum for 3” pipe or 4-1/2”
[11.4 cm] minimum for 4” pipe.
2. The installer must use a galvanized metal thimble for
the vent pipe penetration.
3. Locate the vent and combustion air pipe penetra-
tions to provide clearances as described in Figs. 8
through 15 pages 17 and 18.
4. The installer must comply with all local codes for iso-
lating the vent pipe as it passes through floors and
walls.
5. The installer should seal all exterior openings
around penetration with an exterior silicon caulk.
Termination Fittings - Sidewall
1. The vent and combustion air terminations must
include a factory supplied “bird screen” installed as
shown in Figs. 16 through 19 page 21.
2. The combustion air pipe must terminate using a 90
º
elbow as shown in Figs. 8 through 15 pages 17 and
18.
3. The vent pipe can terminate:
-
Using a 90º elbow as shown in Figs. 8 or 10 page 17.
-
Using coupling as shown in Figs. 9 or 13 pages 17 or
18.
-
Using a tee as shown in Figs. 11 or 14 pages 17 or
18.
-
Using a 45º elbow as shown in Figs. 12 or 15 page
18.
The vent termination must be installed 12” [30.5 cm]
minimum above grade / highest anticipated snow level.
Do not extend the vent pipe outside the sidewall
beyond the dimensions shown in Figs. 8 through 15.
Extended exposure of the vent pipe could cause
condensate to freeze and block the vent pipe.
WARNING
Direct Vent Installation of Vent/Air Piping
Содержание Prestige CPVC
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