Lennox A97UH2E Installation Instructions Manual page 19

1-1/2" Pipe
Number
Model
of 90°
Elbows
030
70
Used
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
Model
of 90°
Elbows
030
70
Used
045
1 25 20
2 20 15
3 15 10
4 10
5
6
7 n/a
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.
508390-01
Maximum Allowable Intake or Exhaust Vent Length in Feet
Standard Termination at Elevation 0 - 4,500 ft
2" Pipe
Model
030
90 110 70
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
Standard Termination at Elevation 4,501 - 10,000 ft
2" Pipe
Model
030
90 110 70
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
2-1/2" Pipe
Model
030
90 110 70
045
39 19 110 110
34 14 105 105
29 9 100 100
24 95 95
10 90 90
14 85 85
9 n/a 80 80
75 75
n/a 70 70
65 65
2-1/2" Pipe
Model
030
90 110 70
045
39 110 110
34 105 105
29 100 100
24 95 95
19 90 90
n/a
14 85 85
9 80 80
75 75
n/a 70 70
65 65
Table 5A.
Issue 2327
3" Pipe
Model
030
90 110 70
045
88 53 133 132
83 48 128 127
78 43 123 122
73 38 118 117
68 33 113 112
63 28 108 107
58 23 103 102
53 18 98 97
48 13 93 92
43 8 89 87
3" Pipe
Model
030
90 110 70
045
88 53 133 132
83 48 128 127
78 43 123 122
73 38 118 117
68 33 113 112
63 28 108 107
58 23 103 102
53 18 98 97
48 13 93 92
43 8 88 87
90 110
113 113
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73
68 68
90 110
113 113
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73
68 68
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