Lennox Allied Air A93UH1E Installation Instructions Manual page 19

A93UH1E & 92G1UHE Maximum Allowable Intake or Exhaust Vent Length in Feet
1-1/2" Pipe
Number of
Capacity
90° Elbows
Used
030 /
070
045
1 25 20
2 20 15
3 15 10
4 10
5
6
7
n/a
n/a
8
9
10
1-1/2" Pipe
Number of
Capacity
90° Elbows
Used
030 /
070
045
1 20 15
2 15 10
3 10
4
5
6
n/a
7 n/a
8
9
10
*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.
507867-02
Standard Termination at Elevation 0 - 10,000 ft
2" Pipe
Capacity
030 /
090 110 070
045
76 61
71 56
66 51
61 46
56 41
n/a n/a
51 36
46 31
41 26
36 21
31 16
Concentric Termination Elevation 0 - 10,000 ft
2" Pipe
Capacity
030 /
090 110 070
045
68 53
63 48
58 43
53 38
48 33
n/a n/a
43 28
38 23
33 18
28 13
23 8
2-1/2" Pipe
Capacity
030 /
090 110 070
045
39 19 110 95
34 14 105 90
29 9 100 85
24 95 80
19 90 75
14 85 70
9 80 65
n/a
75 60
70 55
n/a
65 50
2-1/2" Pipe
Capacity
030 /
090 110 070
045
37 17 100 85
32 12 95 80
27 7 90 75
22 85 70
17 80 65
12 75 60
7 n/a 70 55
65 50
n/a 60 45
55 40
Table 5.
Issue 1922
3" Pipe
Capacity
030 /
090 110 070
045
63 38 132 132
58 33 127 127
53 28 122 122
48 23 117 117
43 18 112 112
38 13 107 107
33 8 102 102
28 97 97
23 92 92
n/a
18 87 87
3" Pipe
Capacity
030 /
090 110 070
045
59 34 116 116
54 29 111 111
49 24 106 106
44 19 101 101
39 14 96 96
34 9 91 91
29 86 86
24 81 81
n/a
19 76 76
14 71 71
090 110
113 113
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73
68 68
090 110
109 109
104 104
99 99
94 94
89 89
84 84
79 79
74 74
69 69
64 64
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