87 Amp rating

Optimized Airflow: 3/4 HP rating delivers reliable CFM performance for consistent heat exchange

and Intertherm furnace control circuits

ensuring efficient airflow transition between heating and cooling cycles

Can I use this switch for R-22 systems

Trane CNT1858 Control 328140-751 87 Amp ratingThe Trane CNT1858 Control is a specialized dual stage compressor staging control designed for multi stage residential and light commercial HVAC systems. This OEM Trane control board replaces previous iterations like the CNT01858 and is engineered to manage transitions between low and high compressor stages based on real time 24VAC signal demands. For contractors, the CNT1858 is essential for maintaining precise indoor climate regulation and preventing