Carrier KFADK0201DSC Disconnect Kit R-407A a neutral wire must be

a neutral wire must be present at the thermostat to power the digital logic and display

Is this sensor compatible with both residential and commercial units

Utilizing high-grade elastomeric materials

OEM Compatibility: Exact fit for Rheem and Ruud outdoor units

Failed or warped access doors can lead to dangerous flue gas leakage

Carrier KFADK0201DSC Disconnect Kit R-407A a neutral wire must beThe Carrier KFADK0201DSC Disconnect Kit is a field installed electrical accessory designed for seamless integration with compatible fan coil units and electric heaters. This non fused disconnect kit is built to facilitate a safe, local power cutoff for maintenance and emergency servicing of HVAC air handlers. Specifically engineered for use with Carrier 3 to 10 kW heaters, it ensures your installation meets National Electrical Code (NEC) requirements