Bryant 352MAV - D. Concentric Vent and Combustion-Air Termination Kit Installation

7. Check dry fit of pipe and mark insertion depth on pipe.
NOTE: It is recommended that all pipes be cut, prepared, and
preassembled before permanently cementing any joint.
8. After pipes have been cut and preassembled, apply gener-
ous layer of cement primer to pipe fitting socket and end of
pipe to insertion mark. Quickly apply approved cement to
end of pipe and fitting socket (over primer). Apply cement
in a light, uniform coat on inside of socket to prevent
buildup of excess cement. Apply second coat.
9. While cement is still wet, twist pipe into socket with 1/4
turn. Be sure pipe is fully inserted into fitting socket.
10. Wipe excess cement from joint. A continuous bead of
cement will be visible around perimeter of a properly made
joint.
11. Handle pipe joints carefully until cement sets.
12. Support combustion-air and vent piping a minimum of
every 5 ft (3 ft for SDR-21 or -26 PVC) using perforated
metal hanging strap.
13. Slope combustion-air and vent pipes downward toward
furnace a minimum of 1/4-in. per linear ft with no sags
between hangers.
14. Use appropriate methods to seal openings where vent and
combustion-air pipes pass through roof or side wall.
D. Concentric Vent and Combustion-Air
TerminationKit Installation
NOTE: If these instructions differ from those packaged with
termination kit, follow kit instructions.
Combustion-air and vent pipes must terminate outside structure. A
factory accessory termination kit must be installed in 1 of the
installations shown in Fig. 37, 38, 39, 40, and 41. Four termination
kits are available.
See Table 6 for additional termination information.
1. The 2-in. termination bracket kit is for 1-in., 1-1/2 in., and
2-in. diameter 2-pipe termination systems.
2. The 3-in. termination bracket kit is for 2-1/2 in., 3-in., and
4-in. diameter 2-pipe termination systems.
3. The 2-in. concentric vent/air termination kit is for 1-in.,
1-1/2 in., 2-in., and 2-1/2 in. diameter pipe systems when
single penetration of wall or roof is desired.
4. The 3-in. concentric vent/air termination kit is for 2-1/2 in.,
3-in., and 4-in. diameter pipe systems when single penetra-
tion of wall or roof is desired.
TABLE 7-MAXIMUM ALLOWABLE PIPE LENGTH (FT) (CONTINUED)
ALTITUDE (FT) UNIT SIZE
TERMINATION
TYPE
PIPE DIA
(IN.)*
NUMBER OF 90° ELBOWS
123456
4001 to 5000‡
036060
2 Pipe or 2-in
Concentric
1-1/2 15 10 5 NA NA NA
2 645958535252
036080
048080
2 Pipe or 2-in
Concentric
2 443926212011
2-1/2 70 70 70 70 70 70
048100
060100
2 Pipe or 3-in
Concentric
2-1/2 31 22 13 12 NA NA
3 707067625752
060120
2 Pipe or 3-in.
Concentric
3† no disk 53 46 40 33 26 20
4† no disk 70 70 70 70 70 70
ALTITUDE (FT) UNIT SIZE
TERMINATION
TYPE
PIPE DIA
(IN.)*
NUMBER OF 90° ELBOWS
123456
5001 to 6000‡
036060
2 Pipe or 2-in
Concentric
1-1/2 14 9 NA NA NA NA
2 605554494847
036080
048080
2 Pipe or 2-in
Concentric
2 4136231817 8
2-1/2 70 70 70 70 70 70
048100
060100
2 Pipe or 3-in
Concentric
2-1/2 29 21 12 11 NA NA
3 706762575247
060120
2 Pipe or 3-in.
Concentric
3† no disk 42 35 29 22 15 9
4† no disk 70 70 70 70 70 70
ALTITUDE (FT) UNIT SIZE
TERMINATION
TYPE
PIPE DIA
(IN.)*
NUMBER OF 90° ELBOWS
123456
6001 to 7000‡
036060
2 Pipe or 2-in
Concentric
1-1/2 13 8 NA NA NA NA
2 575250454443
036080
048080
2 Pipe or 2-in
Concentric
2 3833211615 6
2-1/2 70 70 68 67 66 64
048100
060100
2 Pipe or 3-in
Concentric
2-1/2 27 19 10 9 NA NA
3 686358534843
060120
2 Pipe or 3-in.
Concentric
3† no disk 31 24 18 11 NA NA
4† no disk 70 70 70 70 67 62
ALTITUDE (FT) UNIT SIZE
TERMINATION
TYPE
PIPE DIA
(IN.)*
NUMBER OF 90° ELBOWS
123456
7001 to 8000‡
036060
2 Pipe or 2-in
Concentric
1-1/2 12 7 NA NA NA NA
2 534846414038
036080
048080
2 Pipe or 2-in
Concentric
2 3631191412NA
2-1/2 66 65 63 62 60 59
048100
060100
2 Pipe or 3-in
Concentric
2-1/2 25 17 8 7 NA NA
3 635853484338
060120
2 Pipe or 3-in.
Concentric
3† no disk 20 13 7 NA NA NA
4† no disk 61 56 51 46 41 36
See notes at end of table.
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