18
Horizontal Vents
Acceptable Configurations
Example 1
V
= V (4') = 4'
H
= H1(2')+H2(2')+H3(2')+H4(2')+H5(1’)=9'
V Value
= Total length of all vertical sections in
feet.
H Value
= Total length of horizontal sections in
feet.
NOTE:
a) for H & V values for 45
°
venting see Chart IV
b) elbows are not counted in H or V values
c) vent chart starts from the top of the unit
Содержание BRITANNIA 31
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