Bryant 4-WAY MULTIPOISE TWO-STAGE CONDENSING GAS FURNACE 352AAV - Manual (Page 7)

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352AAV
MAXIMUM ALLOWABLE PIPE LENGTH (FT) (CONTINUED)
ALTITUDE (FT)
UNIT MAX
INPUT RATE
(BTUH)
DIRECT VENT (2-PIPE) ONLY NON-DIRECT VENT
(1-PIPE) ONLY
NUMBER OF 90° ELBOWS
TERMINATION
TYPE
PIPE DIA
(IN.)*
PIPE DIA
(IN.)*
1 2 3 4 5 6
4001 to 5000‡
60,000
2 Pipe or 2-in
Concentric
1-1/2 1-1/2 15 10 5 NA NA NA
2 2 64 59 58 53 52 52
80,000
2 Pipe or 2-in
Concentric
2 2 44 39 26 21 20 11
2-1/2 2-1/2 70 70 70 70 70 70
100,000
2 Pipe or 3-in
Concentric
2-1/2 2-1/2 31 22 13 12 NA NA
3 3 70 70 67 62 57 52
120,000
2 Pipe or 3-in.
Concentric
3† no disk NA 53 46 40 33 26 20
NA 3† 56 55 54 53 52 52
4† no disk 4† no disk 70 70 70 70 70 70
ALTITUDE (FT)
UNIT MAX
INPUT RATE
(BTUH)
DIRECT VENT (2-PIPE) ONLY NON-DIRECT VENT
(1-PIPE) ONLY
NUMBER OF 90° ELBOWS
TERMINATION
TYPE
PIPE DIA
(IN.)*
PIPE DIA
(IN.)*
1 2 3 4 5 6
5001 to 6000‡
60,000
2 Pipe or 2-in
Concentric
1-1/2 1-1/2 14 9 NA NA NA NA
2 2 60 55 54 49 48 47
80,000
2 Pipe or 2-in
Concentric
2 2 41 36 23 18 17 8
2-1/2 2-1/2 70 70 70 70 70 70
100,000
2 Pipe or 3-in
Concentric
2-1/2 2-1/2 29 21 12 11 NA NA
3 3 70 67 62 57 52 47
120,000
2 Pipe or 3-in.
Concentric
3† no disk NA 42 35 29 22 15 9
NA 3† 53 52 50 49 48 47
4† no disk 4† no disk 70 70 70 70 70 70
ALTITUDE (FT)
UNIT MAX
INPUT RATE
(BTUH)
DIRECT VENT (2-PIPE) ONLY NON-DIRECT VENT
(1-PIPE) ONLY
NUMBER OF 90° ELBOWS
TERMINATION
TYPE
PIPE DIA
(IN)*
PIPE DIA
(IN)*
1 2 3 4 5 6
6001 to 7000‡
60,000
2 Pipe or 2-in
Concentric
1-1/2 1-1/2 13 8 NA NA NA NA
2 2 57 52 50 45 44 43
80,000
2 Pipe or 2-in
Concentric
2 2 38 33 21 16 15 6
2-1/2 2-1/2 70 70 68 67 66 64
100,000
2 Pipe or 3-in
Concentric
2-1/2 2-1/2 27 19 10 9 NA NA
3 3 68 63 58 53 48 43
120,000
2 Pipe or 3-in.
Concentric
3† no disk NA 31 24 18 11 NA NA
NA 3† 49 48 47 45 44 43
4† no disk 4† no disk 70 70 70 70 67 62
See notes at end of table
COMBUSTION-AIR AND VENT PIPING FOR DIRECT VENT (2-PIPE)
AND NON-DIRECT VENT (1-PIPE) APPLICATIONS continued