Maximum Allowable Exposed Vent Length - International comfort products N9MSE Series Installation Instructions Manual

INSTALLATION INSTRUCTIONS
Table 17
Winter
Design
Pipe
Furnace Temp
Length in
Input °F (°C)
Ft. & M
20 (-10)
0 (-20)
40,000
-20 (-30)
-40 (-40)
20 (-10)
0 (-20)
60,000
-20 (-30)
-40 (-40)
20 (-10)
0 (-20)
80,000
-20 (-30)
-40 (-40)
20 (-10)
0 (-20)
100,000
-20 (-30)
-40 (-40)
20 (-10)
0 (-20)
120,000
-20 (-30)
-40 (-40)
20 (-10)
0 (-20)
140,000
-20 (-30)
-40 (-40)
56
Maximum Allowable Exposed Vent Lengths in Unconditioned Space
Maximum Length of Uninsulated and Insulated Vent Pipe-Ft (M)
No Insulation
Pipe Diameter − in. (mm)
1 1/2 2 2 1/2 3
(38) (51) (64) (76) (102)
Ft. 48 42 42 N/A
M 14.6 12.8 12.8 N/A
Ft. 25 19 17 N/A
M 7.6 5.8 5.2 N/A
Ft. 14 7 5 N/A
M 4.3 2.1 1.5 N/A
Ft. 7 0 0 N/A
M 2.1 0.0 0.0 N/A
Ft. 30 61 61 54
M 9.1 18.6 18.6 16.5 N/A
Ft. 30 31 30 23
M 9.1 9.4 9.1 7.0
Ft. 24 17 15 7
M 7.3 5.2 4.6 2.1
Ft. 15 8 5 0
M 4.6 2.4 1.5 0.0
Ft. 20 70 78 70
M 6.1 21.3 23.8 21.3 18.3
Ft. 20 42 41 33
M 6.1 12.8 12.5 10.1
Ft. 20 25 23 14
M 6.1 7.6 7.0 4.3
Ft. 20 14 12 3
M 6.1 4.3 3.7 0.9
Ft. N/A 25 99 89
M N/A 7.6 30.2 27.1 23.8
Ft. N/A 25 55 46
M N/A 7.6 16.8 14.0 10.1
Ft. N/A 25 34 24
M N/A 7.6 10.4 7.3
Ft. N/A 23 20 11
M N/A 7.0 6.1 3.4
Ft. N/A N/A 15 99
M N/A N/A 4.6 30.2 26.2
Ft. N/A N/A 15 51
M N/A N/A 4.6 15.5 11.6
Ft. N/A N/A 15 28
M N/A N/A 4.6 8.5
Ft. N/A N/A 15 14
M N/A N/A 4.6 4.3
Ft. N/A N/A 10 90
M N/A N/A 3.0 27.4 30.2
Ft. N/A N/A 10 61
M N/A N/A 3.0 18.6 14.3
Ft. N/A N/A 10 35
M N/A N/A 3.0 10.7
Ft. N/A N/A 10 20
M N/A N/A 3.0 6.1
Specifications subject to change without notice.
Copyright 2013 International Comfort Products
Lewisburg, TN 37091 USA
3/8-in. (9.5 mm) Insulation
Pipe Diameter − in. (mm)
4 1 1/2 2 2 1/2 3
(38) (51) (64) (76) (102) (38)
N/A 50 122 111 N/A
N/A 15.2 37.2 33.8 N/A
N/A 50 75 66 N/A
N/A 15.2 22.9 20.1 N/A
N/A 50 52 45 N/A
N/A 15.2 15.8 13.7 N/A
N/A 50 38 31 N/A
N/A 15.2 11.6 9.4 N/A
N/A 30 135 163 142
9.1 41.1 49.7 43.3
N/A 30 113 100 85
N/A 9.1 34.4 30.5 25.9
N/A 30 81 70 57
N/A 9.1 24.7 21.3 17.4
N/A 30 61 52 40
N/A 9.1 18.6 15.8 12.2
60 20 70 175 183
6.1 21.3 53.3 55.8 46.9
21 20 70 132 111
6.4 6.1 21.3 40.2 33.8 27.1
1 20 70 94 77
0.3 6.1 21.3 28.7 23.5 17.4
0 20 70 71 56
0.0 6.1 21.3 21.6 17.1 11.6
78 N/A 25 110 233
N/A 7.6 33.5 71.0 80.8
33 N/A 25 110 145
N/A 7.6 33.5 44.2 35.7
11 N/A 25 110 103
3.4 N/A 7.6 33.5 31.4 24.1
0 N/A 25 95 77
0.0 N/A 7.6 29.0 23.5 16.8
86 N/A N/A 15 100
N/A N/A 4.6 30.5 66.8
38 N/A N/A 15 100
N/A N/A 4.6 30.5 39.6
14 N/A N/A 15 100
4.3 N/A N/A 4.6 30.5 26.8
0 N/A N/A 15 85
0.0 N/A N/A 4.6 25.9 18.9
99 N/A N/A 10 90
N/A N/A 3.0 27.4 64.0
47 N/A N/A 10 90
N/A N/A 3.0 27.4 46.6
21 N/A N/A 10 90
6.4 N/A N/A 3.0 27.4 31.7
NA N/A N/A 10 90
NA N/A N/A 3.0 27.4 22.9
Gas Furnace: N9MSE
1/2-in. (12.7 mm) Insulation
Pipe Diameter − in. (mm)
4 1 1/2 2 2 1/2 3
(51) (64) (76) (102)
N/A 50 144 130 N/A
N/A 15.2 43.9 39.6 N/A
N/A 50 90 79 N/A
N/A 15.2 27.4 24.1 N/A
N/A 50 64 55 N/A
N/A 15.2 19.5 16.8 N/A
N/A 50 48 40 N/A
N/A 15.2 14.6 12.2 N/A
N/A 30 135 191 166
N/A 9.1 41.1 58.2 50.6
N/A 30 135 120 101
N/A 9.1 41.1 36.6 30.8
N/A 30 98 85 70
N/A 9.1 29.9 25.9 21.3
N/A 30 75 64 51
N/A 9.1 22.9 19.5 15.5
154 20 70 175 215
6.1 21.3 53.3 65.5
89 20 70 157 133
6.1 21.3 47.9 40.5
57 20 70 113 94
6.1 21.3 34.4 28.7
38 20 70 86 70
6.1 21.3 26.2 21.3
265 N/A 25 110 235
N/A 7.6 33.5 71.6
117 N/A 25 110 173
N/A 7.6 33.5 52.7
79 N/A 25 110 124
N/A 7.6 33.5 37.8
55 N/A 25 110 94
N/A 7.6 33.5 28.7
219 N/A N/A 15 100
N/A N/A 4.6 30.5
130 N/A N/A 15 100
N/A N/A 4.6 30.5
88 N/A N/A 15 100
N/A N/A 4.6 30.5
62 N/A N/A 15 100
N/A N/A 4.6 30.5
210 N/A N/A 10 90
N/A N/A 3.0 27.4
153 N/A N/A 10 90
N/A N/A 3.0 27.4
104 N/A N/A 10 90
N/A N/A 3.0 27.4
75 N/A N/A 10 90
N/A N/A 3.0 27.4
440 01 4103 03
4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
181
55.2
107
32.6
71
21.6
50
15.2
229
69.8
140
42.7
97
29.6
70
21.3
250
76.2
156
47.5
108
32.9
79
24.1
210
64.0
183
55.8
128
39.0
94
28.7