Carrier 58MXA Product Data page 15

ALTITUDE
ABOVE SEA
LEVEL (FT) UNIT SIZE
040-08
040-12
060-08
060-12
060-16
080-12
080-16
5001 to 6000‡
080-20
100-16
100-20
120-20
140-20
040-08
040-12
060-08
060-12
060-16
080-12
080-16
6001 to 7000‡
080-20
100-16
100-20
120-20
140-20
040-08
040-12
060-08
060-12
060-16
080-12
080-16
7001 to 8000‡
080-20
100-16
100-20
120-20
140-20
040-08
040-12
060-08
060-12
060-16
080-12
080-16
8001 to 9000‡
080-20
100-16
100-20
120-20
140-20
040-08
040-12
060-08
060-12
060-16
080-12
9001 to
080-16
10,000‡
080-20
100-16
100-20
120-20
140-20
* Disk usage—Unless otherwise specified, use perforated disk assembly (factory-supplied in loose parts bag). If 1 disk is stated, separate 2 halves of
perforated disk assembly and use shouldered disk half. When using shouldered disk half, install screen side toward inlet box.
† Wide radius elbow.
‡ Vent sizing for Canadian installations over 4500 ft (1370m) above sea level are subject to acceptance by the local authorities having jurisdiction.
NA — 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, 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.
6. Use 3 in. diameter vent termination kit for installations requiring 4 in. diameter pipe.
MAXIMUM ALLOWABLE PIPE LENGTH (FT) Continued
TERMINATION TYPE
2 Pipe 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In.
Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric '
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
PIPE DIA
(IN.)* 1 2
1-1/2 57 52
2 70 70
1-1/2 14 9
2 60 55
2 41 36
2-1/2 70 70
2-1/2 29 21
3 70 67
3† no disk 42 35
4† no disk 70 70
3† no disk 12 8
4† no disk 42 37
1-1/2 53 48
2 70 70
1-1/2 13 8
2 57 52
2 38 33
2-1/2 70 70
2-1/2 27 19
3 68 63
3† no disk 31 24
4† no disk 70 70
4† no disk 17 12
1-1/2 49 44
2 66 65
1-1/2 12 7
2 53 48
2 36 31
2 1/2 66 65
2-1/2 25 17
3 63 58
3† no disk 20 13
4† no disk 61 56
NA
1-1/2 46 41
2 62 60
1-1/2 11 6
2 49 44
2 33 28
2-1/2 62 60
2-1/2 23 15
3 59 54
3† no disk 10 NA
4† no disk 35 30
NA
1-1/2 42 37
2 57 55
2 45 40
2 30 25
2-1/2 57 55
2-1/2 21 13
3 54 49
4† no disk 10 5
NA
NUMBER OF 90° ELBOWS
3 4 5
47 42 40
70 70 70
NA NA NA
54 49 48
23 18 17
70 70 70
12 11 NA
62 57 52
29 22 15
70 70 70
NA NA NA
32 27 22
43 38 37
68 67 66
NA NA NA
50 45 44
21 16 15
68 67 66
10 9 NA
58 53 48
18 11 NA
70 70 67
7 NA NA
39 34 33
63 62 60
NA NA NA
46 41 40
19 14 12
63 62 60
8 7 NA
53 48 43
7 NA NA
51 46 41
36 31 29
58 56 55
NA NA NA
42 37 35
17 12 10
58 56 55
7 5 NA
49 44 39
NA NA NA
25 20 15
32 27 25
53 51 49
38 33 31
14 9 7
53 51 49
5 NA NA
44 39 34
NA NA NA
6
35
70
NA
47
8
70
NA
47
9
70
NA
17
32
64
NA
43
6
64
NA
43
NA
62
NA
28
59
NA
38
NA
59
NA
38
NA
36
24
53
NA
34
NA
53
NA
34
NA
10
20
47
29
NA
47
NA
29
NA
15