it functions across different fuel types

While designated as a "T" model for liquid line service

which is essential for rapid troubleshooting in the field

or improper airflow to prevent carbon monoxide hazards

maintaining the appliance's UL certification and operational sequence

York S1-LAPS220A Bulb 318820-201 it functions across different fuelThe York S1 LAPS220A UV Bulb is a genuine OEM replacement lamp designed for 230V York Affinity Series UVC germicidal light systems. This high output ultraviolet C frequency lamp provides continuous indoor air quality (IAQ) improvement by irradiating the evaporator coil and internal air stream. Engineered for the demanding, high velocity environments of HVAC air handlers, the S1 LAPS220A effectively neutralizes airborne pathogens, including surface