Overview of Primary Product

Page 4
INSTALLATION
PLACEMENT OF THE CAS UNIT
The motorized CAS unit should be located on a flat horizontal
surface within the same space as that3 feet of the appliance and
within 3 feet of the combustion air intake as possible. Two
mounting brackets are provided for securing the unit against a solid
structure, such as a wall, column, or the side of the appliance itself.
Use the included screws to attach the brackets to the CAS housing
as shown in Figure 2. Secure the brackets to a solid structure with
appropriate fasteners. It is not required to use the brackets as long
as the unit is located so that it may not be bumped, moved, or
tipped over.
INTAKE AIR HOOD LOCATION
The 4" galvanized vent hood should be located on an outside wall
maintaining minimum clearances to other intake and exhaust vents in accordance with the National
Fuel Gas Code, ANSI Z223.1, manufacturer's recommendations and/or local codes which are
applicable. The hood should be located at least 10 feet from a power vented exhaust outlet and
should be on the same wall. The intake air hood should be a minimum of 1 foot above grade or
snowlines where applicable.
INSTALLATION OF INTAKE AIR HOOD
After determining the location of the vent hood, cut a 4-1/2 inch round or square hole in the wall.
Insert the vent hood and secure with appropriate fasteners. Take precautions to avoid interference
with wiring or other plumbing in the wall to be cut.
INSTALLATION OF DUCT
Refer to Diagram A to determine what size pipe is needed. Connect the duct pipe from the top of the
CAS unit to the Vent Hood in the wall. The duct should be
supported with appropriate mounting straps from floor joists, walls,
or other solid structures. The straps should be placed so as to keep
the duct work out of passageways (see Figure 1).
Figure 2
Figure 1