Carrier Infinity 96 58UVB - Page 18

18
COMBUSTION--AIR AND VENT PIPING FOR DIRECT VENT/2--PIPE (ALL SIZES)
CONTINUED
Maximum Allowable Pipe Length (ft)
ALTITUDE
UNIT SIZE
(BTUH)
TERMINATION
T
Y
PE
PIPE DIA (IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
6001 to 7000}
60,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 35 30 25 20 15 10
2 70 70 68 67 66 64
80,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 20 15 10 5 N/A N/A
2 70 70 68 67 62 57
100,000
2 --- P i p e o r 2 --- i n .
Concentric
2 31 26 21 16 11 6
2 --- 1 / 2 70 70 68 67 66 64
120,000
2 Pipe or 3--- in.
Concentric
3{ one disk 49 48 47 45 44 43
ALTITUDE
UNIT SIZE
(BTUH)
TERMINATION
T
Y
PE
PIPE DIA (IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
7001 to 8000}
60,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 32 27 22 17 12 7
2 66 65 63 62 60 59
80,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 18 13 8 N/A N/A N/A
2 66 65 63 62 57 52
100,000
2 --- P i p e o r 2 --- i n .
Concentric
2 29 24 19 14 9 N/A
2 --- 1 / 2 66 65 63 62 60 59
120,000
2 Pipe or 3--- in.
Concentric
3{ one disk 46 44 43 41 40 38
ALTITUDE
UNIT SIZE
(BTUH)
TERMINATION
T
Y
PE
PIPE DIA (IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
8001 to 9000}
60,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 30 25 20 15 10 5
2 62 60 58 56 55 53
80,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 17 12 7 N/A N/A N/A
2 62 60 58 56 51 46
100,000
2 --- P i p e o r 2 --- i n .
Concentric
2 27 22 17 12 7 N/A
2 --- 1 / 2 62 60 58 56 55 53
120,000
2 Pipe or 3--- in.
Concentric
3{ one disk 43 41 39 37 35 34
ALTITUDE
UNIT SIZE
(BTUH)
TERMINATION
T
Y
PE
PIPE DIA (IN.)*
NUMBER OF 90_ ELBOWS
1 2 3 4 5 6
9001 to 10000}
60,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 27 22 17 12 7 N/A
2 57 55 53 51 49 47
80,000
2 --- P i p e o r 2 --- i n .
Concentric
1 --- 1 / 2 15 10 5 N/A N/A N/A
2 57 55 53 51 46 41
100,000
2 --- P i p e o r 2 --- i n .
Concentric
2 24 19 14 9 N/A N/A
2 --- 1 / 2 57 55 53 51 49 47
120,000
2 Pipe or 3--- in.
Concentric
3{ one disk 39 37 35 33 31 29
* Disk usage ---Unless otherwise stated, use perforated disk assembly (factory ---supplied in loose parts bag).
{ Wide radius elbow.
} Vent sizing for Canadian installations over 4500 ft (1370m) above sea level are subject to a cceptance by the local au th orities having ju risdiction.
N/A---Not Allowed; pressure switch will not make.
NOTES:
1. Do not use pipe size greater than those specified in table or incomplete combustion, flame disturbance, or flame sense lockout may occur.
2. Size both the combustion ---air and vent pipe independently, determine the smallest diameter allowed by the table for each pipe, then use the larger diameter
for both pipes.
3. Assume two 45_ elbows equal one 90_ elbow. Long radius elbows are desirable and may be required in some cases.
4. Elbows and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
5. The minimum pipe length is 5 ft for all applications.
58UVB