Carrier 58MCB Installation, Start-Up, And Operating Instructions Manual page 34

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UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
0 to 2000
100,000
120,000
140,000
UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
100,000
2001 to 3000
120,000
140,000
UNIT SIZE
ALTITUDE (FT)
(BTUH)
40,000
60,000
80,000
3001 to 4000 100,000
120,000
140,000
See notes at end of table
Table 11—Maximum Allowable Pipe Length (ft)
DIRECT VENT (2-PIPE) ONLY
TERMINATION PIPE DIA
TYPE (IN.)*
1
2 Pipe or 2-in
1-1/2
Concentric
2
1-1/2
2 Pipe or 2-in
Concentric
2
1-1/2
2 Pipe or 2-in
2
Concentric
2-1/2
2
2 Pipe or 3-in
2-1/2
Concentric
3
2-1/2 one disk
2 Pipe or 3-in.
3†
Concentric
3† no disk
2-1/2 one disk
3† one disk
2 Pipe or 3-in.
Concentric
3† no disk
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
NA
2 Pipe or 3-in.
Concentric
3† no disk
4† no disk
3† one disk
2 Pipe or 3-in.
3† no disk
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.
Concentric
NA
4† no disk 4† no disk
3† one disk
2 Pipe or 3-in.
3† no disk
Concentric
4† no disk
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1
1-1/2 70
2 70
1-1/2 20
2 70
1-1/2 10
2 55
2-1/2 70
2
2-1/2 40
3 70
2-1/2 10
NA 45
3† 70
NA
NA 40
NA 60
NA 70
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2 67
2 70
1-1/2 17
2 70
2 49
2-1/2 70
2-1/2 35
3 70
NA 14
3† 63
NA 70
4† no disk 70
NA 20
NA 39
NA 70
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2 64
2 70
1-1/2 16
2 68
2 46
2-1/2 70
2-1/2 33
3 70
NA 65
3† 59
4† no disk 70
NA 11
NA 30
NA 70
34
NUMBER OF 90° ELBOWS
1 2 3 4 5
5 NA NA NA NA
70 65 60 60
70 70 70 70
15 10 5 NA
70 70 70 70
NA NA NA NA
50 35 30 30
70 70 70 70
5 NA NA NA NA
30 20 20 10
70 70 70 70
NA NA NA NA
40 35 30 25
70 70 70 70
5 NA NA NA NA
35 30 25 20
56 52 48 44
70 70 70 70
NUMBER OF 90° ELBOWS
1 2 3 4 5
62 57 52 52
70 70 70 70
12 7 NA NA
67 66 61 61
44 30 25 25
70 70 70 70
26 16 16 6
70 70 70 66
9 NA NA NA
62 62 61 61
70 63 56 50
70 70 70 70
15 10 5 NA
35 31 27 23
70 70 70 70
NUMBER OF 90° ELBOWS
1 2 3 4 5
59 54 49 48
70 70 70 70
11 6 NA NA
63 62 57 57
41 28 23 22
70 70 70 70
24 15 14 5
70 70 66 61
58 51 44 38
59 58 57 57
70 70 70 70
6 NA NA NA
26 22 18 14
70 70 70 70
6
NA
55
70
NA
70
NA
20
70
NA
NA
70
NA
20
70
NA
15
40
70
6
47
70
NA
61
15
70
NA
61
NA
61
43
70
NA
19
70
6
43
70
NA
56
13
70
NA
56
31
56
70
NA
10
70