The Trane MOD02132 CSTI ECM Adapter Module Board is an electronic interface component designed to support communication and compatibility between the control system and electronically commutated motors (ECMs) in compatible Trane HVAC equipment. It helps transmit control signals, enabling the motor to operate according to the system’s heating, cooling, and airflow requirements. Commonl... https://www.partshnc.com/trane-mod02132-csti-ecm-adapter-module-board