Allied Air A96US2V Installation Instructions Manual page 20

Number of
90° Elbows
Used
45
1 68
2 63
3 58
4 53
5 48
6 43
7 38
8 33
9 28
10 23
Number of
90° Elbows
Used
45
1 68
2 63
3 58
4 53
5 48
6 43
7 38
8 33
9 28
10 23
*Size intake and exhaust pipe length separately. Values in table are for intake OR Exhaust, not combined total. Both Intake and Exhaust
must be same pipe size.
Page 20 of 80
Maximum Allowable Intake or Exhaust Vent Length in Feet
Concentric Termination at Elevation 0 - 4500 ft
2" Pipe
Model
70 90 110 135
53 37 17 n/a
48 32 12
43 27 7
38 22 n/a
33 17
28 12
23 7
18 n/a
13
8
Concentric Termination Elevation 4501 - 10,000 ft
2" Pipe
Model
70 90 110 135
53 37 n/a n/a
48 32
43 27
38 22
33 17
28 12
23 7
18 n/a
13
8
2-1/2" Pipe
Model
45 70 90 110 135
100 100 84 49
95 95 79 44
90 90 74 39
85 85 69 34
80 80 64 29
75 75 59 24
70 70 54 19
65 65 49 14
60 60 44 9
55 55 39 n/a
2-1/2" Pipe
Model
45 70 90 110 135
100 100 84 49
95 95 79 44
90 90 74 39
85 85 69 34
80 80 64 29
75 75 59 24
70 70 54 19
65 65 49 14
60 60 44 9
55 55 39 n/a
Table 5B
Issue 1621
3" Pipe
Model
45 70 90
n/a 116 116 109 109 100
111 111 104 104
106 106 99
101 101 94
96 96 89
91 91 84
86 86 79
81 81 74
76 76 69
71 71 64
3" Pipe
Model
45 70 90
n/a 116 116 109 109 100
111 111 104 104
106 106 99
101 101 94
96 96 89
91 91 84
86 86 79
81 81 74
76 76 69
71 71 64
110 135
95
99 90
94 85
89 80
84 75
79 70
74 65
69 60
64 55
110 135
95
99 90
94 85
89 80
84 75
79 70
74 65
69 60
64 55
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