and F20 models equipped with either manual or hydraulic air shutter mechanisms

this furnace gas manifold ensures the balanced delivery of natural gas or propane to the burner assembly

DPST Configuration: Provides double-pole switching for enhanced control and safety across multiple electrical legs

Technicians rely on the 550001266 switch for its seamless integration with existing control boards and wiring harnesses

maintaining system integrity and air conditioning efficiency

Cleveland Controls RFS-4100-078 Air Flow Switch R-407A and F20 models equipped withThe Cleveland Controls RFS 4100 078 Air Flow Switch is a high sensitivity differential pressure switch specifically engineered for HVAC ventilation monitoring and air proving applications. This unit features a factory calibrated 0. 17" WC actuation point, making it an essential component for detecting low airflow conditions in critical ducts or air handling units. Built with a robust plated housing and a durable silicone diaphragm, the RFS 4100 078