Description
The Trane CNT02938 Defrost Control is an Electronic Control unit used in heat pumps in HVAC systems. It monitors the outdoor coil and ambient conditions to determine when frost has accumulated and initiates a defrost cycle to clear the coil. It is used within the outdoor unit’s control compartment, the module communicates with sensors and compressors to temporarily reverse operation or activate defrost heaters. Its role is essential for maintaining efficient heating performance, preventing ice buildup, and ensuring stable system operation in colder conditions.
