Bryant 355MAV Installation, Start-Up, And Operating Instructions Manual page 38

MAINTAIN 12 IN. (305 mm).
(18 IN. (457 mm) FOR CANADA)
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. (610 mm) ABOVE ROOF.
Fig. 40—Concentric Vent and Combustion-Air RoofTermination (Preferred)
Fig. 41—Concentric Vent and Combustion-Air SideTermination
VENT
90¡
BRACKET
COMBUSTION-AIR
Fig. 42—Sidewall Termination of 12 in. or More
VENT
OVERHANG OR ROOF
12" (305 mm) MINIMUM
1" MAXIMUM
COMBUSTION-AIR
VENT
MAINTAIN 12 IN. (305 mm)
CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL OR GRADE,
WHICHEVER IS
GREATER.
OVERHANG OR ROOF
12" MINIMUM
12 IN. SEPARATION
BETWEEN BOTTOM OF
COMBUSTION AIR AND
BOTTOM OF VENT
MAINTAIN 12 IN.
CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL OR GRADE,
WHICHEVER IS
GREATER.
—38—
COMBUSTION
AIR
A93054
A93055
A87225