Trane CNT5482 Defrost Control R-407A this valve eliminates the risk

this valve eliminates the risk of both ports being open simultaneously

this 1/4" NPT adjustable deadband switch allows for customizable control between set and reset points

efficient gas furnace operation

Can I use this to replace older mechanical thermostats

Verification is done via a continuity test across the terminals when the system is cool

Trane CNT5482 Defrost Control R-407A this valve eliminates the riskThe Trane CNT5482 Defrost Control is a critical OEM replacement component engineered for Trane and American Standard heat pump systems. This microprocessor based defrost control board actively manages the transition between heating and defrost modes by monitoring both ambient temperature and coil temperature sensors. Designed to replace legacy part numbers like CNT05482 and D341122P01, this board is the primary logic center responsible for preventing