2630 Airport Road · Kinston, NC 28504
Phone: 252-522-3031· Fax: 252-522-0214
www.fieldcontrols.com
COMBUSTION AIR SYSTEM
Model: CAS-3
This product is designed for use with any oil burning furnace, water heater, or
boiler with 120 VAC control systems. It may also be used with more than one
appliance. The CAS unit mechanically draws air into a structure and
disperses it near the combustion air intake of an appliance. If an optional
Vacuum Relief Valve (VRV) is used, the incoming air is tempered before
entering the structure's airspace. Refer to Diagram A and B for guidance in
setting up the CAS system based on the size and length of the connecting
duct-work and the input rating of the appliance.
This device MUST be installed by a qualified agency in accordance with the manufacturers installation
instructions.
The definition of a qualified agency is:
any individual, firm, corporation or company which either in person or through a
representative is engaged in, and is responsible for, the installation and operation of gas appliances, who is experienced
in such work, familiar with all the precautions required, and has complied with the requirements of the authority having
jurisdiction.
DO NOT DESTROY
THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT
I
TEMS INCLUDED IN KIT
:
1) Motorized
Blower
1)
4" galvanized intake air Vent Hood
2)
Mounting brackets to secure the CAS to a wall
2) Wire/conduit
connector(s)
1)
4" x 6" Pipe Increaser Fitting
1)
6" Orifice Ring
1) Instruction
Sheet
1)
High/Low Motor Speed Switch
