12
TRANSITION NO LESS
THAN 45 DEGREES TO
HORIZONTAL PLANE TO
AVOID CREATING A WATER
TRAP IN VENT PIPING.
ACCEPTABLE
NO TRANSITION ON
HORIZONTAL PLANE,
THIS CREATES A
WATER TRAP AND
GASES
per foot downward slope toward the furnace to return
condensate to the furnace’s drain system. Condensation
may also occur in the intake pipe. This commonly takes
place during the summer months when humid air enters
conditioned space.
to outdoors in excess of the terminations permitted as
ceiling or other area where dripping of condensate will
RF000142 kit and managing condensation.
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