Description
Product Summary
The Field Controls CAS-34U is a control board from Field Controls, described by the manufacturer as: combustion air system for oil (3.5 GPH) or gas (450000 BTU) compatible with both 120V & 24V control systems includes 4" intake air hood. It is rated for 120V. It replaces CAS-3 and CAS-4 603400700.
A control board coordinates the operation of the equipment, switching the motors, valves and safety circuits based on thermostat calls and sensor inputs. Replace a board with burnt traces or relays, one that does not respond to correct inputs, or one that shows incorrect fault codes after its sensors test good.
Before you order, match CAS-34U to the part number on the part you are replacing or in your equipment's repair parts list, and confirm the voltage, size and connections match your equipment. If you are not sure which part your equipment needs, call us at 1.888.509.3391 with the model and serial number and we will confirm it for you.
Key Features
- Genuine Field Controls part: Manufacturer part number CAS-34U, factory new.
- Voltage: 120V.
- Cross-reference: Replaces CAS-3 and CAS-4 603400700.
- Includes: 4" Intake Air Hood.
Frequently Asked Questions
Is this a genuine Field Controls part?
Yes. This is the Field Controls CAS-34U, a factory-new control board from Field Controls.
How do I make sure it fits my equipment?
Compare CAS-34U with the part number printed on the part you are replacing or listed in your equipment's repair parts list, and confirm the voltage and connections match. If you are not sure, call us at 1.888.509.3391 with your model and serial number and we will confirm it.
What part numbers does the CAS-34U replace?
The Field Controls CAS-34U replaces CAS-3 and CAS-4 603400700.
Do I need to set anything on a new board?
Many boards have DIP switches or jumpers for timing, model or capacity. Set them to match the original board or the equipment's instructions.
Should a professional install this part?
Yes. Gas, electrical, hydronic and combustion components should be installed by a qualified technician who can test the system afterward and follow the codes that apply where you live.
