Field Control Combustion Air System 24V for Gas- Up to 280,000 BTU - CAS-4
Item #: CAS-4
These models are designed to provide combustion air for appliances when direct connection to the burner is not possible (when the appliance is located in a confined space). According to NFPA 54 and NFPA 31, an engineered system such as a CAS-3, 4, 6 or 7 may be used to overcome the lack of air in a confined space. The CAS-3 is designed for use with oil appliances. The CAS-4 is for use with gas appliances with 24 VAC gas valve controls. The CAS-4MV is for use with 750mV power pile gas appliances. Each 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. Each is equipped with a two speed control for enhanced versatility.
How the CAS-4 Works:
When the thermostat calls for heat, the Fan-in-a-Can engages and begins drawing air into the structure. When air flow is established, the pressure switch closes. The CAS sends a signal to the appliance, allowing the burner to fire. The Fan-in-a-Can diffuses the outside air into the room near the burner to ensure adequate air for efficient combustion.
Field Controlsí Combustion Air System increases AFUE by up to 2% which translates to a savings of approximately 5% to 10% per year on heating costs.
|Air Flow @ 0 static pressure (Hi speed, fan unit)||325 cfm|
|Air Flow @ 1.0" w.c. (Hi speed, fan unit)||130 cfm|
|Weight* (as shipped)||14 lb.|
|Sound Level*, dB @ 36" (Hi Speed)||68|
|RPM (Hi speed)||2600|
|Motor Voltage (VAC)||115 single phase|
|Motor Amps. (max.)||0.80|
|Control Input Voltage||24 VAC|
Overall Rating for Field Control Combustion Air System 24V for Gas- Up to 280,000 BTU - CAS-4
|(no reviews)||Be the first to rate and review this item|