Lennox Allied Air A95DF1D Installation Instructions Manual page 18

A95DF / 95G1DF and A93DF / 92G1DF Maximum Allowable Intake or Exhaust Vent Length in Feet
Number of 90°
Elbows Used
045
1 61
2 56
3 51
4 46
5 41
6 36
7 31
8 26
9 21
10 16
Number of 90°
Elbows Used
045
1 53
2 48
3 43
4 38
5 33
6 28
7 23
8 18
9 13
10 n/a
*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.
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Standard Termination at Elevation 0 - 10,000 ft
2" Pipe
Model
070 090 110
46 24
41 19
36 14
31
26
n/a
21
16
n/a
11
n/a
Concentric Termination Elevation 0 - 10,000 ft
2" Pipe
Model
070 090 110
38 22
33 17
28 12
23
18
n/a
13
n/a
n/a
2-1/2" Pipe
Model
045 070 090
95 80 43
90 75 38
85 70 33
80 65 28
75 60 23
70 55 18
65 50 13
60 45
55 40
n/a
50 35
2-1/2" Pipe
Model
045 070 090
90 70 39
85 65 34
80 60 29
75 55 24
70 50 19
65 45 14
60 40
55 35
n/a
50 30
45 25
Table 7A.
Issue 1917
3" Pipe
Model
110 045 070
127 127
122 122
117 117
112 112
107 107
n/a
102 102
97 97
92 92
87 87
82 82
3" Pipe
Model
110 045 070
111 111
106 106
101 101
96 96
91 91
n/a
86 86
81 81
76 76
71 71
66 66
090 110
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73
68 68
63 63
090 110
104 104
99 99
94 94
89 89
84 84
79 79
74 74
69 69
64 64
59 59
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