Goodman MEC96 Series Instruction Manual page 15

*MEC96/*CEC96 Direct Vent (2 - Pipe) and Non-Direct Vent (1- Pipe)
Pipe Size
MODEL
(4)
(in.)
*M EC960303AN
2
&
*M EC960403AN
3
2
*M EC960603AN
3
*M EC960302BN
2
&
*M EC960402BN
3
2
*M EC960603BN^
3
2
*M EC960803BN
3
2
*M EC960804CN
3
2
*M EC961004CN
3
2
*M EC961005CN
3
*M EC961205DN
3
2
*CEC960403BN
3
2
*CEC960603BN
3
2
*CEC960803BN
3
2
*CEC961005CN
3
^ *MEC960603BN-add 45' of 2" pipe for upflow.
Figure 11
Maximum Allowable Length of Vent/Flue Pipe
1 2 3
75 70 65
114 107 100
75 70 65
114 107 100
100 95 90
168 161 154
50 45 40
143 136 129
60 55 50
113 106 99
60 55 50
120 113 106
45 40 35
103 96 89
45 40 35
151 144 137
185 178 171
100 95 90
110 103 96
45 40 35
110 103 96
35 30 25
103 96 89
45 40 35
110 103 96
15
(3) (5)
Number of Elbows
4 5
60 55
93 86
60 55
93 86
85 80
147 140
35 30
122 115
45 40
92 85
45 40
99 92
30 25
82 75
30 25
130 123
164 157
85 80
89 82
30 25
89 82
20 15
82 75
30 25
89 82
The rubber elbow is not designed to support
a load. When the rubber elbow is mounted
externally to the furnace cabinet, extreme
care must be taken to adequately support field-
supplied vent/flue piping, as damage can result
in leaks causing bodily injury or death due
to exposure to flue gases, including carbon
monoxide.
(6)
6 7 8
50 45 40
79 72 65
50 45 40
79 72 65
75 70 65
133 126 119
25 20 15
108 101 94
35 30 25
78 71 64
35 30 25
85 78 71
20 15 10
68 61 54
20 15 10
116 109 102
150 143 136
75 70 65
75 68 61
20 15 10
75 68 61
10 5 NA
68 61 54
20 15 10
75 68 61
WARNING