Payne PG9MAA, Installation Manual

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Table 11—Maximum Allowable Vent Pipe Length (Ft) for Non-Direct Vent Applications Continued
For Use with 040 through 120 Size Furnaces Only
ALTITUDE UNIT SIZE
VENT PIPE
DIAMETER
(IN.)*
NUMBER OF 90° ELBOWS
1 2 3 4 5 6
5001 to 6000‡
024040
036040
1-1/2 57 52 47 42 40 35
2 70 70 70 70 70 70
024060
036060
048060
1-1/2 14 9 NA NA NA NA
2 60 55 54 49 48 47
036080
048080
060080
2 41 36 23 18 17 8
2-1/2 70 70 70 70 70 70
048100
060100
2-1/2 29 21 12 11 NA NA
3 70 67 62 57 52 47
060120
3† no disk 42 35 29 22 15 9
4† no disk 70 70 70 70 70 70
Altitude Unit Size
Vent Pipe
Diameter
(In.)*
Number of 90° Elbows
1 2 3 4 5 6
6001 to 7000‡
024040
036040
1-1/2 53 48 43 38 37 32
2 70 70 68 67 66 64
024060
036060
048060
1-1/2 13 8 NA NA NA NA
2 57 52 50 45 44 43
036080
048080
060080
2 38 33 21 16 15 6
2-1/2 70 70 68 67 66 64
048100
060100
2-1/2 27 19 10 9 NA NA
3 68 63 58 53 48 43
060120
3† no disk 31 24 18 11 NA NA
4† no disk 70 70 70 70 67 62
Altitude Unit Size
Vent Pipe
Diameter
(In.)*
Number of 90° Elbows
1 2 3 4 5 6
7001 to 8000‡
024040
036040
1-1/2 49 44 39 34 33 28
2 66 65 63 62 60 59
024060
036060
048060
1-1/2 12 7 NA NA NA NA
2 53 48 46 41 40 38
036080
048080
060080
2 36 31 19 14 12 NA
2-1/2 66 65 63 62 60 59
048100
060100
2-1/2 25 17 8 7 NA NA
3 63 58 53 48 43 38
060120
3† no disk 20 13 7 NA NA NA
4† no disk 61 56 51 46 41 36
Altitude Unit Size
Vent Pipe
Diameter
(In.)*
Number of 90° Elbows
1 2 3 4 5 6
8001 to 9000‡
024040
036040
1-1/2 46 41 36 31 29 24
2 62 60 58 56 55 53
024060
036060
048060
1-1/2 11 6 NA NA NA NA
2 49 44 42 37 35 34
036080
048080
060080
2 33 28 17 12 10 NA
2-1/2 62 60 58 56 55 53
048100
060100
2-1/2 23 15 7 5 NA NA
3 59 54 49 44 39 34
060120
3† no disk 10 NA NA NA NA NA
4† no disk 35 30 25 20 15 10
See notes at end of table.
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