Carrier 58MCB120 Product Data page 13

Combustion-air and vent piping for Direct Vent/2-Pipe
(All Sizes) and Non-Direct Vent/1-Pipe (Sizes 040
through 120 Only) Applications
UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
4001 to 5000‡
100,000
120,000
140,000
UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
5001 to 6000‡
100,000
120,000
140,000
UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
6001 to 7000‡
100,000
120,000
140,000
See notes at end of table
DIRECT VENT (2-PIPE) ONLY
TERMINATION PIPE DIA
TYPE (IN.)*
1-1/2
2 Pipe or 2-in
Concentric
2
1-1/2
2 Pipe or 2-in
Concentric
2
2
2 Pipe or 2-in
Concentric
2-1/2
2-1/2
2 Pipe or 3-in
Concentric
3
3† no disk
2 Pipe or 3-in.
NA
Concentric
4† no disk
3† no disk
2 Pipe or 3-in.
Concentric
4† no disk
DIRECT VENT (2-PIPE) ONLY
TERMINATION PIPE DIA
TYPE (IN.)*
1-1/2
2 Pipe or 2-in
Concentric
2
1-1/2
2 Pipe or 2-in
Concentric
2
2
2 Pipe or 2-in
Concentric
2-1/2
2-1/2
2 Pipe or 3-in
Concentric
3
3† no disk
2 Pipe or 3-in.
NA
Concentric
4† no disk
3† no disk
2 Pipe or 3-in.
Concentric
4† no disk
DIRECT VENT (2-PIPE) ONLY
TERMINATION PIPE DIA
TYPE (IN)*
1-1/2
2 Pipe or 2-in
Concentric
2
1-1/2
2 Pipe or 2-in
Concentric
2
2
2 Pipe or 2-in
Concentric
2-1/2
2-1/2
2 Pipe or 3-in
Concentric
3
3† no disk
2 Pipe or 3-in.
NA
Concentric
4† no disk
2 Pipe or 3-in.
4† no disk
Concentric
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
1
(IN.)*
1-1/2 60
2 70
1-1/2 15
2 64
2 44
2-1/2 70
2-1/2 31
3 70
NA 53
3† 56
4† no disk 70
NA 21
NA 69
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
1
(IN.)*
1-1/2 57
2 70
1-1/2 14
2 60
2 41
2-1/2 70
2-1/2 29
3 70
NA 42
3† 53
4† no disk 70
NA 12
NA 42
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
1
(IN)*
1-1/2 53
2 70
1-1/2 13
2 57
2 38
2-1/2 70
2-1/2 27
3 68
NA 31
3† 49
4† no disk 70
NA 17
NUMBER OF 90° ELBOWS
2 3 4 5
55 50 45 44
70 70 70 70
10 5 NA NA
59 58 53 52
39 26 21 20
70 70 70 70
22 13 12 NA
70 67 62 57
46 40 33 26
55 54 53 52
70 70 70 70
17 13 9 5
64 59 54 49
NUMBER OF 90° ELBOWS
2 3 4 5
52 47 42 40
70 70 70 70
9 NA NA NA
55 54 49 48
36 23 18 17
70 70 70 70
21 12 11 NA
67 62 57 52
35 29 22 15
52 50 49 48
70 70 70 70
8 NA NA NA
37 32 27 22
NUMBER OF 90° ELBOWS
2 3 4 5
48 43 38 37
70 68 67 66
8 NA NA NA
52 50 45 44
33 21 16 15
70 68 67 66
19 10 9 NA
63 58 53 48
24 18 11 NA
48 47 45 44
70 70 70 67
12 7 NA NA
6
39
70
NA
52
11
70
NA
52
20
52
70
NA
44
6
35
70
NA
47
8
70
NA
47
9
47
70
NA
17
6
32
64
NA
43
6
64
NA
43
NA
43
62
NA
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