Bryant 352AAV Installation, Start-Up, And Operating Instructions Manual page 44

DIRECT VENT (2-PIPE) TERMINATION KIT
2-in. (51 mm) Concentric Vent Kit
3-in. (76 mm)Concentric Vent Kit
2-in. (51 mm)Termination Bracket Kit
3-in. (76 mm) Termination Bracket Kit
Vertical separation
between combustion
air and vent
8 3/4 in. (222mm)for 3 in. (76mm)ki t
6 3/4 in. (172mm)for 2 in. (51mm) ki t
Maintain 12 in. (305mm)min .
clearance above
highest anticipated
snow level
Maximum of 24 in.(614mm)
above roof
Fig. 44 - - Combustion Air and Vent Pipe Termination for Direct Vent (2-pipe) System
Table 14 – Vent Termination Kit for Direct Vent/2-Pipe System
TERMINATION SYSTEM
Single Penetration of Wall or Roof
Single Penetration of Wall or Roof
2---Pipe Termination System
2---Pipe Termination System
Roof T e rmination (Preferred)
At least 36 in.
(914mm)
18 in. maximum (457mm)
Note: "A" denotes 0 to < 2 in.
(51mm)
Between the first 2 vents
Third vent must be > 36 in. away
(914mm)
12
overhang or roof
90°
A
Roof Termination (Preferred)
Maintain 12 in (305mm) .
minimum clearance
above highest anticipated
snow level maximum of
24 in. (610mm) above roof .
90°
Side wall termination
with 2 elbows (preferred)
Fig. 45 - - Vent Pipe Termination for Non-Direct Vent (1-pipe) System
DIAM. OF COMBUSTION AIR AND VENT
Concentric Vent and Combustion Air
Roof Termination (preferred)
A
Abandoned masonry
used as raceway
(per code)
in.
min from
(typ)
A
At least 36 in.
in. (305mm)
12
(914mm)
separation between
Side wall termination
bottom ofcombustion air and
of less than 12
bottom of vent (typ)
in. (305mm)
Maintain 12
min. clearance above
highest anticipated
snow level or grade
whichever is greater (typ)
Vent
Abandoned masonry
used as raceway
(per code)
6 in. (152mm) minimum clearance
between wall and end of vent pipe.
10 in. (254mm) maximum pipe lengt h
12 in. (305 mm) min. from
overhang or roof
Maintain 12 in. (305mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater.
44
PIPES --- IN (mm)
1, 1---1/2, 2, or 2---1/2 (25, 38, 51, 64 mm)
2---1/2, 3 or 4 (64, 76, 102 mm)
1, 1---1/2 or 2 (25, 38, 51mm)
2---1/2, 3 or 4 (64, 76, 102 mm)
A
At least
36 in. in. (305mm)
Maintain 12
min. clearance above
(914mm)
highest anticipated
snow level, maximum of
24 in. above roof
1 in. (25mm) maximum (typ) from wall to inlet
in. (305mm)
12
overhang or roof
A
Maintain 12
min. clearance above
highest anticipated
snow level or grade
whichever is greater
Concentric Vent
and Combustion - Air
Side T e rmination
in. (305mm) above highest snow level
12 in. min. (305 mm)from
overhang or roof
Maintain 12 in. (305mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater
Sidewall Termination
with Straight Pipe (preferred)
minimum from
in. (305mm)
A05090
A05091