Lennox Allied Air Enterprise A97DSMV Installation Instructions Manual page 16

Number of
90° Elbows
Used
070
1 10
2
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.
Page 16 of 73
Maximum Allowable Intake or Exhaust Vent Length (feet)
Concentric Termination at Elevation 0 - 4,500 ft
1-1/2" Pipe
Model
090 110 070
78
73
68
63
58
n/a n/a
53
48
43
38
33
Concentric Termination Elevation 4,501 - 10,000 ft
1-1/2" Pipe
Model
090 110 070
53
48
43
38
33
n/a n/a
28
23
18
13
8
2" Pipe
Model
090 110 070
62 125
57 120
52 115
47 110
42 105
n/a
37 100
32 95
27 90
22 85
17 80
2" Pipe
Model
090 110 070
37 100
32 95
27 90
22 85
17 80
n/a
12 75
7 70
65
n/a 60
55
Table 7B.
Issue 2241
2-1/2" Pipe
Model
090 110 070
84 34 141
79 29 136
74 24 131
69 19 126
64 14 131
59 9 116
54 111
49 106
n/a
44 101
39 96
2-1/2" Pipe
Model
090 110 070
59 116
54 111
49 106
44 101
39 96
n/a
34 91
29 86
24 81
19 76
14 71
3" Pipe
Model
090 110
134 109
129 104
124 99
119 94
114 89
109 84
104 79
99 74
94 69
89 64
3" Pipe
Model
090 110
109 84
104 79
99 74
94 69
89 64
84 59
79 54
74 49
69 44
64 39
507029-05