Trane TRR1729 Transformer Simple analog interface is easy

Simple analog interface is easy for end-users to operate

For contractors performing Armstrong furnace troubleshooting

Designed as a direct replacement for the Cecilware CD140 and Cecilware CD140L

Precise Millivolt Signal: Provides a stable voltage to the gas valve magnet

High Thermal Resistance: Engineered to maintain a leak-proof seal under extreme operating temperatures and fluctuating water chemistry

Trane TRR1729 Transformer Simple analog interface is easyThe Trane TRR1729 Transformer is a critical OEM HVAC replacement part engineered to provide stable 24V control power for residential and commercial heating systems. This 115V to 24V furnace transformer features a 35VA rating, providing sufficient volt ampere capacity to manage the inductive loads of contactors, gas valves, and electronic control boards without saturation. As a direct drop in for legacy part numbers C340041P05, C340041P04, C340041P01,