heavy panel weight

Pre-Installed Safety: Includes a factory-mounted L200-60F limit switch to protect the system from airflow restrictions and thermal runaway

High Voltage Threshold: Rated for 440V

It features a broad 100 to 240 degree temperature range with a sensing element consisting of a liquid-filled immersion bulb that delivers rapid response to thermal changes

This board is engineered as a pin-for-pin ICM321 equivalent

Trane CNT2237 Defrost Controller R-410A heavy panel weightThe Trane CNT2237 Defrost Controller is a high precision OEM electronic board engineered for demand based defrost management in specialized Trane heat pump systems. As a veteran grade HVAC replacement part, this 24V AC controller replaces legacy boards by utilizing advanced adaptive control logic to monitor evaporator coil temperatures. Unlike standard time and temperature units, the CNT2237 uses localized sensor data to initiate the defrost cycle