Trane CNT4991 Pressure Switch 321142-301 Industrial-Grade Durability: Rugged material selection

Industrial-Grade Durability: Rugged material selection stands up to the corrosive environments typical of warehouse and garage settings

and fan functions from a single interface

For technicians performing a condenser control board replacement

Is the 32-00000-143 compatible with older 032-series units

40" water column setpoints for precise safety monitoring

Trane CNT4991 Pressure Switch 321142-301 Industrial-Grade Durability: Rugged material selectionThe Trane CNT4991 is a 10 inch SPST pressure switch engineered for precise atmospheric monitoring in high efficiency Trane and American Standard HVAC systems. This OEM air pressure switch features a single pole single throw (SPST) contact configuration, rated at 0. 1" WC (water column) for low pressure detection. It is designed to interrupt or complete the 24V control circuit (rated at 28 VA) when specific airflow or flue gas pressure thresholds are