Broan 688 Fan User Manual


 
ATTIC SOLAR VENTILATION
Weathered Wood
29.875"
25.5"
9"
25.5"
26.625"
Dome
Base
19.75"
29.875"
11"
19.75"
26.625"
Dome
Base
Black Model shown with
a flat roof installation
Surface Mount—345SOBK and 345SOWW
For most roofs, our one piece SPAV is the perfect
solution. Because our solar cells are highly efficient at
capturing the sun’s energy, there is no need for
unsightly raised panels or tracking systems. Instead,
what you see is a low profile ventilator in a contoured
design that integrates well with the roof.
Curb Mount—345CSOBK and 345CSOWW
Identical in design to the Surface Mount unit but with an
added lip for flat, tiled, or unusually steep roof
installations. A Curb Mount installation requires the
fabrication of a simple curb box frame made from
treated 2x4s to create a solid platform and better
manage water runoff.
VENTILATE
YOUR ATTIC
WITH THE POWER
OF THE SUN.
345CSOBK (BLACK) | 345CSOWW (WEATHERED WOOD)345SOBK (BLACK) | 345SOWW (WEATHERED WOOD)
Weathered
Wood Model
shown with
a steep roof
installation
Black Model
48