Trane CNT2938 Defrost Board Els PW 17895 This spring return valve actuator

This spring return valve actuator ensures a fail-safe position upon loss of power

This ensures that the system maintains optimal chemistry and stays protected against moisture contamination throughout its operating life

providing reliable contact closure in control panels

This unit features a standard 1/4" barb connection for a quick

Can I use this kit for a 1/2" or 3/4" valve

Trane CNT2938 Defrost Board Els PW 17895 This spring return valve actuatorThe Trane CNT2938 Defrost Board (also identified as CNT02938) is a critical 24V microprocessor based control designed specifically for Trane and American Standard heat pump systems. Field technicians recognize this as the primary logic center for managing defrost cycles, preventing excessive ice buildup on the outdoor coil during low ambient operation. Unlike generic timers, this OEM Trane replacement part utilizes both ambient and coil temperature