Roof (Vertical) Direct Venting; Vent/Air Termination - Vertical; Determine Location - Slant/Fin VHG-100-CH Installation And Service Manual

Roof (vertical) direct venting

V /
ENT AIR TERMINATION
Follow instructions below when determining vent location to avoid possibility of severe
personal injury, death or substantial property damage.
WARNING
D
ETERMINE LOCATION
Locate the vent/air terminations using the following guidelines:
1.
The total length of piping for vent or air must not exceed the limits given in the section 9.1 of this manual.
2.
Prepare the vent termination and the air intake termination elbow (see Figure 9.21) by inserting bird screens.
3.
The exhaust vent must terminate at least 3 feet above the highest place in which the exhaust vent penetrates
the roof and at least 2 feet above any part of a building within 10 horizontal feet.
4.
The air intake piping must terminate in a down-turned 180° direction utilizing two elbows, see Figure 9.21.
5.
The exhaust piping must terminate in a vertical coupling as shown in . The top of the coupling must be at least
1 foot above the air intake. When the vent termination uses a rain cap, maintain at least 36" (914 mm) above
the air inlet. The air intake pipe and exhaust vent pipe can be located in any desired position on the roof,
provided that the exhaust vent termination is at least 1 foot above the air intake.
6.
Maintain the required dimensions of the finished termination piping as shown in Figure 9.21.
7.
Do not extend exposed vent pipe outside of building more than shown in this document. Condensate could
freeze and block the vent pipe.
Rooftop exhaust vent and air intake inlet terminations must terminate in the same pressure
zone.
WARNING
Two pipes vertical termination of air and vent.
Figure 9.21
8.
Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject
to buildup of leaves or sediment.
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VERTICAL
E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO