Haier GE NF96DS Service Manual page 26

Maximum Allowable Exhaust Vent Lengths With Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl
1-1/2" Pipe
Capacity
Number of 90°
Elbows Used
045
1 10
2
3
4
5
6 n/a
7
8
9
10
NOTE - 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.
NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length
calculation.
NOTE - Contact your local FTC if more than 85ft of venting is needed.
Maximum Allowable Exhaust Vent Lengths With Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl
1-1/2" Pipe
Capacity
Number of 90°
Elbows Used
045
1
2
3
4
5
n/a
6
7
8
9
10
NOTE - 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.
NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length
calculation.
NOTE - Contact your local FTC if more than 85ft of venting is needed.
Space For Intake Air in Feet
Standard Termination at Elevation 0 - 2,000 ft
2" Pipe
Capacity
070 090 045
10 51
46
41
36
31
n/a
n/a 26
21
16
11
n/a
Space For Intake Air in Feet
Standard Termination at Elevation 2,001 - 10,000 ft
2" Pipe
Capacity
070 090 045
30
25
20
15
10
n/a n/a
n/a
2-1/2" Pipe
Capacity
070 090 045
36 14 85
31 9 80
26 75
21 70
16 65
11 60
n/a
55
50
n/a
45
40
Table 11A.
2-1/2" Pipe
Capacity
070 090 045
20 10 80
15 75
10 70
65
60
n/a 55
n/a 50
45
40
35
Table 11B.
Page 26
3" Pipe
Capacity
070 090 045
65 28 107
60 23 102
55 18 97
50 13 92
45 8 87
40 82
35 77
30 n/a 72
25 67
20 62
3" Pipe
Capacity
070 090 045
53 28 107
48 23 102
43 18 97
38 13 92
33 87
28 82
23 77
n/a
18 72
13 67
n/a 62
070 090
107 88
102 83
97 78
92 73
87 68
82 63
77 58
72 53
67 48
62 43
070 090
107 88
102 83
97 78
92 73
87 68
82 63
77 58
72 53
67 48
62 43
31-5000729 Rev. 0