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Combustion AIR Systems (oil)
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CAS-1 and CAS-2 (oil)
Direct Connect
The CAS-1 and CAS-2 Field Combustion Air Systems
provide controlled amounts of outside air for proper
combustion of oil heating appliances. These models were
designed specifically for use with Aero, Beckett, Carlin,
Riello, or Wayne burners.
HEN TO USE THE CAS SYSTEM:
• Too tight construction
• Provide source of fresh air for combustion
• CAS-1 & CAS-2 connect directly to oil
burners
4” VRV
Vacuum
Relief
Valve
Furnace Boot™
With telescopic
Feature
(Allows units to fit
any furnace cabinet)
Intake Air Hood
AirBoot®/
Furnace Boot™
Pipe
Diameter
4” 44’ 7’
Maximum
Linear
Feet
Feet/
Elbow
5” 60’ 9’
Field BigBoot™
6” 90’ 11’
6” 30’ 11’
7” 60’ 12’
8” 100’ 14’
Model
CAS-1 Oil
CAS-2A
CAS-2B
CAS-2C
CAS-2W
CAS-2B-90E Oil
CAS-2BB Oil
CAS-2B375 Oil Beckett CF-375
CAS-2BC Oil
Fuel
Beckett AFII, Riello
40BF
Oil
Aero FAFC, HF-US,
HF-AFC, (S)SV
Beckett AFG or AF,
Oil
Carlin EZ-1, CRD,
FRD, Wayne MSR
Beckett AF & AFG
warm air furnaces
Beckett SF,
SMG,CF-500, CF800
Carlin, 99-FRD,100CRD,102-CRD
Burner
Appliance
Input
Up to 2
gph
Up to 2
gph
Up to 1.5
gph
Up to 4.5
gph
Up to 3.5
gph
Up to 4.5
gph
Field AirBoot®
or
Field BigBoot™
Components
4” Intake Air Hood
4” Vacuum Relief Valve
4” Intake Air Hood
4” Vacuum Relief Valve
Field AirBoot®
4” Intake Air Hood
4” Vacuum Relief Valve
FurnaceBoot™
6” Intake Air Hood
6” Vacuum Relief Valve
Field BigBoot™
6” Intake Air Hood
6” Vacuum Relief Valve
Field BigBoot™
6” Intake Air Hood
6” Vacuum Relief Valve
Field BigBoot™
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CAS-3 (oil)
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This model is designed to provide combustion air for
appliances when direct connecto the burner is not
possible. According to NFPA 54 and NFPA 31, an
engineered system such as a CAS-3 may be used to
overcome the lack of air in a confined space. The CAS-3
is designed for optimum safety and includes a proving
device that won’t allow the burner to engage without the
Fan-in-a-Can™ operating. Multiple units or additional
controls are required for multiple appliance installations.
The CAS-3 is equipped with a two speed control for
enhanced versatility.
HOW THE CAS-3
When the thermostat calls for heat, the Fanin-a-Can™ engages and begins drawing
outside air into the structure. When air flow
is established, the CAS allows the burner to
activate. The Fan-in-a-Can™ diffuses the
outside air into the room near the burner.
ORKS:
Model
Number
CAS-3 Oil
Fuel Application Components
Any oil
heating
appliance
4” Intake Air Hood
Fan-in-a-Can™ Assembly
6” to 4” Reducer
Restrictor Plate
Intake Air Hood
Fan-in-a-Can™
Assembly
P/N 46457000 10/03
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