Lennox Allied Air A95UH1D Installation Instructions Manual page 19

A93UH1D and 92G1UH-P Maximum Allowable Intake or Exhaust Vent Length in Feet
Number of
90° Elbows
Used
045 070
1 76 61
2 71 56
3 66 51
4 61 46
5 56 41
6 51 36
7 46 31
8 41 26
9 36 21
10 31 16
Number of
90° Elbows
Used
045 070
1 68 53
2 63 48
3 58 43
4 53 38
5 48 33
6 43 28
7 38 23
8 33 18
9 28 13
10 23 8
*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.
507270-03
Standard Termination at Elevation 0 - 10,000 ft
2" Pipe
Capacity
090 110 135
39 19
34 14
29 9
24
19
n/a
14
9
n/a
n/a
Concentric Termination Elevation 0 - 10,000 ft
2" Pipe
Capacity
090 110 135
37 17
32 12
27 7
22
17
n/a
12
7 n/a
n/a
2-1/2" Pipe
Capacity
045 070 090 110
110 95 63 38
105 90 58 33
100 85 53 28
95 80 48 23
90 75 43 18
85 70 38 13
80 65 33 8
75 60 28
70 55 23
n/a
65 50 18
2-1/2" Pipe
Capacity
045 070 090 110
100 85 59 34
95 80 54 29
90 75 49 24
85 70 44 19
80 65 39 14
75 60 34 9
70 55 29
65 50 24
n/a
60 45 19
55 40 14
Table 5A.
Issue 1917
3" Pipe
Capacity
135 045 070 090
132 132 113
127 127 108
122 122 103
117 117 98
112 112 93
n/a
107 107 88
102 102 83
97 97 78
92 92 73
87 87 68
3" Pipe
Capacity
135 045 070 090
116 116 109
111 111 104
106 106 99
101 101 94
96 96 89
n/a
91 91 84
86 86 79
81 81 74
76 76 69
71 71 64
110 135
113 109
108 104
103 99
98 94
93 89
88 84
83 79
78 74
73 69
68 64
110 135
109 100
104 95
99 90
94 85
89 80
84 75
79 70
74 65
69 60
64 55
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