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No Elbow
V = 60 ft. (18.3 m) Maximum
V = 12 ft. (3.7 m) Minimum
Figure 5.2
Two Elbows
V
= 60 ft (18.3 m) Maximum
Total
V
= 12 ft (3.7 m) Minimum
Total
Maximum horizontal run is 50% of vertical, but may not exceed
VENT SUPPORTS
30 ft. (9.1 m)
ARE PER VENT
METAL
MANUFACTURER'S
SPECIFICATIONS.
PLUMBERS' STRAP
Figure 5.3
18
Heatilator • NBV3630I-B, NBV3933I-B, NBV4236I-B, NBV4842I-B Installation Manual • 2376-980 Rev. F • 7/16
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