Enhanced System Safety: Actively prevents compressor damage by interrupting the control circuit when internal pressures exceed or fall below the designated safety thresholds

specifically engineered for integration with Aaon rooftop units and air handling systems

Its robust design is optimized for rapid installation in tight mechanical rooms where reliability is non-negotiable

suitable for HVAC/R environments

McDonnell & Miller 2-M 110100 Switch R-410A Enhanced System Safety: Actively preventsThe McDonnell & Miller 2 M (110100) is a heavy duty, SPDT manual reset switch engineered for field installation on Series 47, 247, 51, 51 S, 53, and 63 boiler water feeders. As a low water cut off switch, this component provides critical burner protection by interrupting the circuit if water levels drop below the safe operating line. Designed for versatility in commercial and residential steam systems, the 110100 switch features dual voltage