This boiler low gas pressure switch interrupts the control circuit if inlet gas pressure drops below the set point

though this can be field-adjusted using Belimo PC-Tools or the ZTH handheld tool

the Carrier HN53HF122 is rated for both 50Hz and 60Hz frequencies

High Compatibility: Designed for use with air or inert dry gases

Internal Protection: Features robust internal pressure relief and thermal overloads to prevent motor burnout

Browning BK105H Sheave 318820-201 This boiler low gas pressureWhen you need a reliable power transmission component, the Browning BK105H sheave delivers. This single groove sheave is engineered from close grain cast iron, ensuring robust performance and longevity in demanding HVACR applications. With a precise 10. 25 inch outside diameter, this V belt pulley is specifically designed for use with H Series bushings, providing a secure and accurate fit for optimal power transfer. Its combination groove design