this limit control switch interrupts the 24V or line voltage circuit to the heating elements if the discharge air or internal heat exchanger temperature exceeds the 220-degree Fahrenheit threshold

As a direct replacement for part number 239-49000-01

its compact 2-3/4” x 4” footprint ensures seamless integration into the control box of most standard outdoor units

6 watts for stable

typically found in commercial-grade water heaters and larger heating units

BASO Y90AA-3223 Orifice R-134A this limit control switch interruptsThe BASO Y90AA 3223 is a high precision natural gas pilot burner orifice engineered for reliable performance in standing pilot ignition (SPI) and intermittent pilot ignition (IPI) systems. Featuring a calibrated . 023" orifice size, this component ensures regulated gas flow for optimal flame stability. The unit is built with an aluminum lined inlet body and a 1 4" compression coupling inlet fitting, providing a secure, leak free connection for