Blue Summit BG952UHV, Руководство по установке

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507266-04B Page 21 of 56 Issue 1904
Maximum Allowable Exhaust Vent Lengths with Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl
Space for Intake Air in Feet
Standard Termination at Elevation 0 - 4500 ft
Number of 90° Elbows
Used
2" Pipe 2" Pipe 2" Pipe
Capacity Capacity Capacity
70 90 110 70 90 110 70 90 110
1 51 29 9 95 73 38 112 93 93
2 46 24 4 90 68 33 107 88 88
3 41 19
n/a
85 63 28 102 83 83
4 36 14 80 58 23 97 78 78
5 31 9 75 53 18 92 73 73
6 26 4 70 48 13 87 68 68
7 21
n/a
65 43 8 82 63 63
8 16 60 38 3 77 58 58
9 11 55 33
n/a
72 53 53
10 6 50 28 67 48 48
Standard Termination Elevation 4,501 - 10,000 ft
Number of 90° Elbows
Used
2" Pipe 2" Pipe 2" Pipe
Capacity Capacity Capacity
70 90 110 70 90 110 70 90 110
1 51 29
n/a
95 73 38 112 93 93
2 46 24 90 68 33 107 88 88
3 41 19 85 63 28 102 83 83
4 36 14 80 58 23 97 78 78
5 31 9 75 53 18 92 73 73
6 26 4 70 48 13 87 68 68
7 21
n/a
65 43 8 82 63 63
8 16 60 38 3 77 58 58
9 11 55 33
n/a
72 53 53
10 6 50 28 67 48 48
* 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.
* Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length
calculation.
Table 5C.