Three 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 30 ft. (9.1 m)
INSTALLED
HORIZONTALLY
Figure 5.4
19
Heatilator • NBV3630I-B, NBV3933I-B, NBV4236I-B, NBV4842I-B Installation Manual • 2376-980 Rev. F • 7/16