INSTALLATION INSTRUCTIONS
Gas Furnace: (F/G)9MAE
54
440 01 4300 02
Specifications subject to change without notice.
Table 17
Maximum Allowable Exposed Vent Lengths in Unconditioned Space
Maximum Length of Uninsulated and Insulated Vent Pipe-Ft (M)
(F/G)9MAE
Max. Heat
Input
Winter
Design
Temp
°
F (
°
C)
Pipe Length
in Ft. & M
No Insulation
3/8-in. (9.5 mm)
1/2-in. (12.7 mm)
Pipe Diameter-inches (mm)
Pipe Diameter-inches (mm)
Pipe Diameter-inches (mm)
1.5
2.0
2.5
3.0
4.0
1.5
2.0
2.5
3.0
4.0
1.5
2.0
2.5
3.0
4.0
(38)
(51) (64) (76) (102)
(38)
(51)
(64)
(76) (102) (38)
(51)
(64)
(76) (102)
60,000
20 (-10)
Ft.
34.0 29.0 28.0 23.0 N/A
55.0
88.0 79.0 69.0
N/A
55.0 104.0 93.0 81.0
N/A
M
10.4
8.8
8.5
7.0
N/A
16.8
26.8 24.1 21.0
N/A
16.8 31.7 28.3 24.7
N/A
0 (-20)
Ft.
14.0
9.0
7.0
0.0
N/A
55.0
49.0 43.0 34.0
N/A
55.0 60.0 52.0 42.0
N/A
M
4.3
2.7
2.1
0.0
N/A
16.8
14.9 13.1 10.4
N/A
16.8 18.3 15.8 12.8
N/A
-20 (-30)
Ft.
5.0
0.0
0.0
0.0
N/A
41.0
32.0 26.0 18.0
N/A
50.0 40.0 33.0 24.0
N/A
M
1.5
0.0
0.0
0.0
N/A
12.5
9.8
7.9
5.5
N/A
15.2 12.2 10.1
7.3
N/A
-40 (-40)
Ft.
0.0
0.0
0.0
0.0
N/A
30.0
21.0 16.0
8.0
N/A
37.0 28.0 22.0 13.0
N/A
M
0.0
0.0
0.0
0.0
N/A
9.1
6.4
4.9
2.4
N/A
11.3
8.5
6.7
4.0
N/A
60,600
20 (-10)
Ft.
34.0 29.0 28.0 23.0 N/A
55.0
88.0 79.0 69.0
N/A
55.0 104.0 93.0 81.0
N/A
M
10.4
8.8
8.5
7.0
N/A
16.8
26.8 24.1 21.0
N/A
16.8 31.7 28.3 24.7
N/A
0 (-20)
Ft.
14.0
9.0
7.0
0.0
N/A
55.0
49.0 43.0 34.0
N/A
55.0 60.0 52.0 42.0
N/A
M
4.3
2.7
2.1
0.0
N/A
16.8
14.9 13.1 10.4
N/A
16.8 18.3 15.8 12.8
N/A
-20 (-30)
Ft.
5.0
0.0
0.0
0.0
N/A
41.0
32.0 26.0 18.0
N/A
50.0 40.0 33.0 24.0
N/A
M
1.5
0.0
0.0
0.0
N/A
12.5
9.8
7.9
5.5
N/A
15.2 12.2 10.1
7.3
N/A
-40 (-40)
Ft.
0.0
0.0
0.0
0.0
N/A
30.0
21.0 16.0
8.0
N/A
37.0 28.0 22.0 13.0
N/A
M
0.0
0.0
0.0
0.0
N/A
9.1
6.4
4.9
2.4
N/A
11.3
8.5
6.7
4.0
N/A
80,000
20 (-10)
Ft.
35.0 39.0 39.0 33.0 25.0
35.0 118.0 107.0 92.0 76.0 35.0 130.0 125.0 109.0 90.0
M
10.7 11.9 11.9 10.1
7.6
10.7
36.0 32.6 28.0 23.2 10.7 39.6 38.1 33.2
27.4
0 (-20)
Ft.
22.0 16.0 14.0 7.0
0.0
35.0
69.0 60.0 49.0 35.0 35.0 83.0 72.0 60.0
45.0
M
6.7
4.9
4.3
2.1
0.0
10.7
21.0 18.3 14.9 10.7 10.7 25.3 21.9 18.3
13.7
-20 (-30)
Ft.
11.0
5.0
2.0
0.0
0.0
35.0
46.0 39.0 29.0 16.0 35.0 57.0 48.0 37.0
23.0
M
3.4
1.5
0.6
0.0
0.0
10.7
14.0 11.9
8.8
4.9
10.7 17.4 14.6
11.3
7.0
-40 (-40)
Ft.
4.0
0.0
0.0
0.0
0.0
35.0
33.0 26.0 17.0
4.0
35.0 41.0 34.0 24.0
11.0
M
1.2
0.0
0.0
0.0
0.0
10.7
10.1
7.9
5.2
1.2
10.7 12.5 10.4
7.3
3.4
100,000
20 (-10)
Ft.
N/A
47.0 47.0 41.0 32.0
N/A
50.0 110.0 112.0 93.0 N/A
50.0 110.0 132.0 110.0
M
N/A
14.3 14.3 12.5
9.8
N/A
15.2 33.5 34.1 28.3 N/A
15.2 33.5 40.2
33.5
0 (-20)
Ft.
N/A
21.0 19.0 12.0
1.0
N/A
50.0 74.0 61.0 45.0 N/A
50.0 89.0 74.0
57.0
M
N/A
6.4
5.8
3.7
0.3
N/A
15.2 22.6 18.6 13.7 N/A
15.2 27.1 22.6
17.4
-20 (-30)
Ft.
N/A
8.0
6.0
0.0
0.0
N/A
50.0 49.0 38.0 23.0 N/A
50.0 60.0 48.0
32.0
M
N/A
2.4
1.8
0.0
0.0
N/A
15.2 14.9
11.6
7.0
N/A
15.2 18.3 14.6
9.8
-40 (-40)
Ft.
N/A
1.0
0.0
0.0
0.0
N/A
42.0 34.0 24.0 10.0 N/A
50.0 43.0 32.0
18.0
M
N/A
0.3
0.0
0.0
0.0
N/A
12.8 10.4
7.3
3.0
N/A
15.2 13.1
9.8
5.5
120,000
20 (-10)
Ft.
N/A
N/A 15.0 49.0 40.0
N/A
N/A
15.0 100.0 111.0 N/A
N/A
15.0 100.0 131.0
M
N/A
N/A
4.6 14.9 12.2
N/A
N/A
4.6
30.5 33.8 N/A
N/A
4.6
30.5
39.9
0 (-20)
Ft.
N/A
N/A 15.0 17.0
6.0
N/A
N/A
15.0 75.0 57.0 N/A
N/A
15.0 90.0
70.0
M
N/A
N/A
4.6
5.2
1.8
N/A
N/A
4.6
22.9 17.4 N/A
N/A
4.6
27.4
21.3
-20 (-30)
Ft.
N/A
N/A 10.0 2.0
0.0
N/A
N/A
15.0 48.0 32.0 N/A
N/A
15.0 59.0
42.0
M
N/A
N/A
3.0
0.6
0.0
N/A
N/A
4.6
14.6
9.8
N/A
N/A
4.6
18.0
12.8
-40 (-40)
Ft.
N/A
N/A
1.0
0.0
0.0
N/A
N/A
15.0 32.0 17.0 N/A
N/A
15.0 41.0
25.0
M
N/A
N/A
0.3
0.0
0.0
N/A
N/A
4.6
9.8
5.2
N/A
N/A
4.6
12.5
7.6
Copyright 2013 International Comfort Products
Lewisburg, TN 37091 USA