Installation Guide

507277-03CPage 16 of 53 mrcool.com
Maximum Allowable Intake or Exhaust Vent Length in Feet
Number
of 90
Elbows
Used
Capacity Capacity Capacity Capacity
045 070 090 110 045 070 090 110 045 070 090 110 045 070 090 110
1 20 15
n/a n/a
61 46 24
n/a
100 80 43
n/a
127 127 108 108
2 15 10 56 41 19 95 75 38 122 122 103 103
3 10
n/a
51 36 14 90 70 33 117 117 98 98
4
n/a
46 31
n/a
85 65 28 112 112 93 93
5 41 26 80 60 23 107 107 88 88
6 36 21 75 55 18 102 102 83 83
7 31 16 70 50 13 97 97 78 78
8 26 11 65 45
n/a
92 92 73 73
9 21
n/a
60 40 87 87 68 68
10 16 55 35 82 82 63 63
Number
of 90
Elbows
Used
Capacity Capacity Capacity Capacity
045 070 090 110 045 070 090 110 045 070 090 110 045 070 090 110
1 15 10
n/a n/a
53 38 22
n/a
90 70 39
n/a
111 111 104 104
2 10
n/a
48 33 17 85 65 34 106 106 99 99
3
n/a
43 28 12 80 60 29 101 101 94 94
4 38 23
n/a
75 55 24 96 96 89 89
5 33 18 70 50 19 91 91 84 84
6 28 13 65 45 14 86 86 79 79
7 23
n/a
60 40
n/a
81 81 74 74
8 18 55 35 76 76 69 69
9 13 50 30 71 71 64 64
10 n/a 45 25 66 66 59 59
Table 7.