This product is designed for use with any natural gas or LP burning furnace,
water heater, or boiler with a 750mV control system. It may be used with
more than one appliance with the addition of a CK-81 Control Kit. 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.
-COMBUSTION AIR SYSTEM
Model: CAS-4mV
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
2630 Airport Road · Kinston, NC 28504
Phone: 252-522-3031· Fax: 252-522-0214
www.fieldcontrols.com
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