3.7.5 Rooftop vent termination
Warning
Condensate can cause corrosion of metal roofing components and other roofing
materials. Check with the builder or roofing contractor to ensure that materials are
resistant to acidic condensate. pH levels can be as low as 3.0.
a. Rooftop vents must terminate as follows:
The exhaust pipe can terminate in an open vertical orientation without concern
about rain infiltration; rain will drain away through the condensate trap.
Optional bird screen may be placed in a termination fitting. Leave unglued, and hold
in place with a short nipple. This permits easy access for cleaning.
Do not
exhaust vent into a common venting system.
b. For rooftop direct vent systems:
Rooftop, two pipe, direct vent configurations, including typical clearance
requirements are shown below in the following images.
Figure 12
Rooftop vent terminal
configurations
Figure 13
Rooftop vent termination with
sidewall combustion air
27
3.7.5 Rooftop vent termination
Summary of Contents for SL Series
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Page 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Page 64: ...Figure 40 Electric wiring connections 60 Section Installation...
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Page 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
Page 111: ...Sequence of operations Figure 47 Sequence of Operation 107 Sequence of operations...