Bryant Condensing Gas 355CAV - Manual (Page 40)

40
Table 7 – Maximum Allowable Pipe Length (Ft / M)
Direct Vent (2--Pipe Only) NUMBER OF 90_ ELBOWS
ALTITUDE
UNIT SIZE
(BTUH)
Termination
Type
Pipe Dia
(IN.)* 1 2 3 4 5 6
0 to 2000
60,000
2 Pipe or 2---In.
Concentric
1---1/2 50 / 15.2 45 / 13.7 40 / 12.9 35 / 10.7 30 / 9.1 25 / 7.6
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
80,000
2 Pipe or 2---In.
Concentric
1---1/2 30 / 9.14 25 / 7.6 20 / 6.1 15 / 4.6 10 / 3.0 5 / 1.5
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
100,000
2 Pipe or 2---In.
Concentric
2 45 / 13.7 40 / 12.9 35 / 10.7 30 / 9.1 25 / 7.6 20 / 6.1
2---1/2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
120,000
2 Pipe or 3---In.
Concentric
2---1/2 one disk 10 / 3.0 NA NA NA NA NA
3 one disk 35 / 10.7 30 / 9.1 15 / 4.8 NA NA NA
3 one disk† 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
ALTITUDE
UNIT SIZE
(BTUH)
Termination
Type
Pipe Dia
(IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
2001 to 3000
60,000
2 Pipe or 2---In.
Concentric
1---1/2 45 / 13.7 40 / 12.9 35 / 10.7 30 / 9.14 25 / 7.6 20 / 6.1
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
80,000
2 Pipe or 2---In.
Concentric
1---1/2 26 / 7.9 21 / 6.4 16 / 4.9 11 / 3.4 6 / 1.8 NA
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
100,000
2 Pipe or 2---In.
Concentric
2 40 / 12.2 35 / 10.7 30 / 9.1 25 / 7.6 20 / 6.1 15 / 4.6
2---1/2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
120,000
2 Pipe or 3---In.
Concentric
3 one disk 31 / 9.4 26 / 7.9 12 / 3.7 NA NA NA
3 one disk† 63 / 19.2 62 / 18.9 62 / 18.9 61 / 18.6 61 / 18.6 61 / 18.6
ALTITUDE
UNIT SIZE
(BTUH)
Termination
Type
Pipe Dia
(IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
3001 to 4000
60,000
2 Pipe or 2---In.
Concentric
1---1/2 42 / 12.8 37 / 11.2 32 / 9.8 27 / 8.2 22 / 6.7 17 / 5.2
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
80,000
2 Pipe or 2---In.
Concentric
1---1/2 25 / 7.6 20 / 6.1 15 / 4.6 10 / 3.0 5 / 1.5 NA
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
100,000
2 Pipe or 2---In.
Concentric
2 38 / 11.6 33 / 10.1 28 / 8.5 23 / 7.0 18 / 5.5 13 / 4.0
2---1/2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
120,000
2 Pipe or 3---In.
Concentric
3 one disk 29 / 8.8 24 / 7.3 10 / 3.0 NA NA NA
3 one disk† 59 / 18.0 59 / 18.0 58 / 17.8 57 / 17.4 57 / 17.4 56 / 17.0
ALTITUDE
UNIT SIZE
(BTUH)
Termination
Type
Pipe Dia
(IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
4001 to 5000‡
60,000
2 Pipe or 2---In.
Concentric
1---1/2 40 / 12.2 35 / 10.7 30 / 9.1 25 / 7.6 20 / 6.1 15 / 9.6
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
80,000
2 Pipe or 2---In.
Concentric
1---1/2 23 / 7.0 18 / 5.5 13 / 4.0 8 / 2.4 NA NA
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 68 / 20.7
100,000
2 Pipe or 2---In.
Concentric
2 36 / 11.0 31 / 9.4 26 / 7.9 21 / 6.4 16 / 4.8 11 / 3.4
2---1/2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
120,000
2 Pipe or 3---In.
Concentric
3 one disk† 56 / 17.1 55 / 16.8 54 / 16.5 53 / 6.2 52 / 15.8 52 / 15.8
ALTITUDE
UNIT SIZE
(BTUH)
Termination
Type
Pipe Dia
(IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
5001 to 6000‡
60,000
2 Pipe or 2---In.
Concentric
1---1/2 37 / 11.3 32 / 9.8 27 / 8.2 22 / 6.7 17 / 5.2 12 / 3.7
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
80,000
2 Pipe or 2---In.
Concentric
1---1/2 22 / 6.7 17 / 5.2 12 / 3.7 7 / 2.1 NA NA
2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 68 / 20.7 63 / 19.2
100,000
2 Pipe or 2---In.
Concentric
2 33 / 10 28 / 8.5 23 / 7.0 18 / 5.5 13 / 4.0 8 / 2.4
2---1/2 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3 70 / 21.3
120,000
2 Pipe or 3---In.
Concentric
3 one disk† 53 / 16.2 52 / 15.8 50 / 15.2 49 / 14.9 48 / 14.6 47 / 14.3
*See notes on next page.
355C
A
V