Trane TRR2928 Transformer 321702-401 replacing the older G665 model

replacing the older G665 model with improved internal sealing and pressure compensation features while maintaining the same face-to-face dimensions

maintaining seamless compatibility for maintenance and replacement in existing mechanical rooms

Key Benefits Universal Compatibility: Optimized for multiple Reznor model lines including V3

While some ICM or White-Rodgers boards are universal

technicians can eliminate noise issues from worn bearings and ensure efficient flue gas venting

Trane TRR2928 Transformer 321702-401 replacing the older G665 modelIntegrate the Trane TRR2928 Transformer into your service routine when you need a high reliability 24VAC step down transformer for residential or light commercial systems. Engineered for precision, this 120V to 24V transformer provides a stable low voltage supply essential for the seamless operation of relays, contactors, and advanced control modules. As an OEM Trane replacement part, it ensures exact fitment and electrical performance, eliminating