Lennox Allied Air Enterprise A97DSMV Installation Instructions Manual page 15

Number of
90° Elbows
Used
070
1 15
2 10
3
4
5
6
n/a
7
8
9
10
Number of
90° Elbows
Used
070
1
2
3
4
5
n/a
6
7
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.
507029-05
Maximum Allowable Intake or Exhaust Vent Length (feet)
Standard Termination at Elevation 0 - 4,500 ft
1-1/2" Pipe
Model
090 110 070
86
81
76
71
66
n/a n/a
61
56
51
46
41
Standard Termination at Elevation 4,501 - 10,000 ft
1-1/2" Pipe
Model
090 110 070
61
56
51
46
41
n/a n/a
36
31
26
21
16
2" Pipe
Model
090 110 070
64 135
59 130
54 125
49 120
44 115
n/a
39 110
34 105
29 100
24 95
19 90
2" Pipe
Model
090 110 070
39 110
34 105
29 100
24 95
19 90
n/a
14 85
9 80
75
n/a 70
65
Table 7A.
Issue 2241
2-1/2" Pipe
Model
090 110 070
88 38 157
83 33 152
78 28 147
73 23 142
68 18 137
63 13 132
58 8 127
53 122
48 n/a 117
43 112
2-1/2" Pipe
Model
090 110 070
63 132
58 127
53 122
48 117
43 112
n/a
38 107
33 102
28 97
23 92
18 87
3" Pipe
Model
090 110
138 113
133 108
128 103
123 98
118 93
113 88
108 83
103 78
98 73
93 68
3" Pipe
Model
090 110
113 88
108 83
103 78
98 73
93 68
88 63
83 58
78 53
73 48
68 43
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