it provides self-regulating heat output

As a direct replacement for Bard 8402-028

Limit switches are safety devices rated specifically for the furnace's BTU output and airflow design

ensuring the unit remains operational in challenging weather environments common on rooftops

Daikin-McQuay 349956814 Pressure Control it provides self-regulating heat outputThe Daikin McQuay 349956814 is a precision engineered Lo Limit Pressure Control designed for high performance HVAC systems. Calibrated specifically for a 0. 15" WC setpoint, this differential pressure switch monitors critical airflow and static pressure thresholds to prevent equipment damage. As a genuine OEM Daikin replacement part, it ensures seamless integration with McQuay air handlers and rooftop units. Its primary function is to serve as a