Bryant 352AAV - Page 38

38
Table13–MaximumAllowablePipeLength--Ft.(M)
ALTITUDE
FT (M)
UNIT MAX
INPUT
RATE
(BTUH)
DIRECT VENT (2-PIPE)
ONLY
NON-DIRE
CT VENT
(1-PIPE)
ONLY
NUMBER OF 90° ELBOWS
TERMINA TI
ON TYPE
PIPE DIA
IN. (MM)*
PIPE DIA
IN. (MM)*
1 2 3 4 5 6
0 to 2000
(0 to 610)
60,000
2Pipeor2-in.
(51 mm)
Concentric
1---1/2 (38) 1---1/2 (38)
20
(6.1)
15
(4.6)
10
(3.0)
5
(1.5)
NA NA
2 (51) 2 (51)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
80,000
2Pipeor2-in.
(51 mm)
Concentric
1---1/2 (38) 1---1/2 (38)
10
(3.0)
NA NA NA NA NA
2 (51) 2 (51)
55
(16.7)
50
(15.2)
35
(10.6)
30
(9.1)
30
(9.1)
20
(6.1)
2---1/2 (64) 2---1/2 (64)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
100,000
2Pipeor3-in.
(76 mm)
Concentric
2 (51) 2 (51)
5
(1.5)
NA NA NA NA NA
2---1/2 (64) 2---1/2 (64)
40
(12.1)
30
(9.1)
20
(6.1)
20
(6.1)
10
(3.0)
NA
3 (76) 3 (76)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
120,000
2Pipeor3-in.
(76 mm)
Concentric
2---1/2 (64) one
disk
2---1/2 (64) 10 (3.0) NA NA NA NA NA
3 (76)† NA
45
(13.7)
40
(12.1)
35
(10.6)
30
(9.1)
25
(7.6)
20
(6.1)
3 (76)† no
disk
3 (76)†
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
2001 to
3000
(610 to 914)
60,000
2Pipeor2-in.
(51 mm)
Concentric
1---1/2 (38) 1---1/2 (38)
17
(5.1)
12
(3.6)
7
(2.1)
NA NA NA
2 (51) 2 (51)
70
(21.3)
67
(20.4)
66
(20.1)
61
(18.5)
61
(18.5)
61
(18.5)
80,000
2Pipeor2-in.
(51 mm)
Concentric
2 (51) 2 (51)
49
(14.9)
44
(13.4)
30
(9.1)
25
(7.6)
25
(7.6)
15
(4.6)
2---1/2 (64) 2---1/2 (64)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
100,000
2Pipeor3-in.
(76 mm)
Concentric
2---1/2 (64) 2---1/2 (64)
35
(10.6)
26
(7.9)
16
(4.8)
16
(4.8)
6
(1.8)
NA
3 (76) 3 (76)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
66
(20.1)
61
(18.5)
120,000
2Pipeor3-in.
(76 mm)
Concentric
3 (76) NA
14
(4.2)
9
(2.7)
NA NA NA NA
NA 3 (76)†
63
(19.2)
62
(18.8)
62
(18.8)
61
(18.5)
61
(18.5)
61
(18.5)
3 (76)† no
disk
NA
70
(21.3)
70
(21.3)
63
(19.2)
56
(17.)
50
(15.2)
43
(13.1)
4† no disk 4† no disk
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
3001 to
4000
(914 to
1219)
60,000
2Pipeor2-in.
(51 mm)
Concentric
1---1/2 (38) 1---1/2 (38)
16
(4.8)
11
(3.3)
6
(18.8)
NA NA NA
2 (51) 2 (51)
68
(20.7)
63
(19.2)
62
(18.8)
57
(17.3)
57
(17.3)
56
(17.0)
80,000
2Pipeor2-in.
(51 mm)
Concentric
2 (51) 2 (51)
46
(14.0)
41
(12.4)
28
(8.5)
23
(7.0)
22
(6.7)
13
(3.9)
2---1/2 (64) 2---1/2 (64)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
100,000
2Pipeor3-in.
(76 mm)
Concentric
2---1/2 (64) 2---1/2 (64)
33
(10.0)
24
(7.3)
15
(4.6)
14
(4.2)
5
(1.5)
NA
3 (76) 3 (76)
70
(21.3)
70
(21.3)
70
(21.3)
66
(20.1)
61
(18.5)
56
(17.0)
120,000
2Pipeor3-in.
(76 mm)
Concentric
3 (76)† no
disk
NA
65
(19.8)
58
(17.6)
51
(15.5)
44
(13.4)
38
(11.5)
31
(9.4)
NA 3 (76)†
59
(17.9)
59
(17.6)
58
(17.6)
57
(17.3)
57
(17.3)
56
(17.0)
4† no disk 4† no disk 4† no disk
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
See notes at end of table
352AAV