This unit is built as a fan center and functions as the cover plate for a 4x4 junction box

Key Benefits for Technicians: Universal PopTop Design: Allows for one-handed actuator removal

Key Benefits Broad Operating Range: Rated for temperatures between -30°F and 220°F

Direct Interchangeability: Exact cross-reference for the FHR205-16

Can I use a switch with a different water column rating

York S1-031-03000-000 Enthalpy Sensor 30067439-890 This unit is built asThe York S1 031 03000 000 Enthalpy Sensor is a critical component for optimizing HVAC economizer systems by measuring both latent and sensible heat in the outdoor air stream. Designed for precision air enthalpy control, this sensor ensures the rooftop unit (RTU) utilizes free cooling only when the outdoor air's total energy content is lower than the return air. This OEM York replacement part serves as the direct successor to the S1 031 00863 000,