Form 43471030
Sept 2011
-25-
Combustion Air Cap
(Leslie VersaCap
Type B)
4 Diameter
Single-Wall Pipe
Flashing
1/2 (12mm) fall per 20ft (6m)
toward vent terminal
Horizontal
Through Sidewall
6 (15cm)
Minimum
4 Starting Collar
(field supplied)
3 ft. (91cm)
Minimum
Vertical
Through the roof
Control Box
Perforated Cover
(Remove)