Trane TRR1838 Transformer 319847-401 This JARD 11953 compatible model

This JARD 11953 compatible model fits standard 1-13/16 inch diameter mounting brackets and features 1/4-inch quick-disconnect terminals for fast field replacement during service calls

the 1830 Series architecture supports multiple inlet orientations to accommodate tight HVAC equipment clearances

Smaller boiler models typically utilize a different gasket profile to match their specific heat exchanger geometry

Common Questions: How do I know if my ASCO valve needs a 302-278 rebuild kit

Trane TRR1838 Transformer 319847-401 This JARD 11953 compatible modelThe Trane TRR1838 Transformer is a heavy duty 75VA control transformer engineered specifically for technical reliability in demanding HVACR environments. This OEM replacement part handles primary input voltages of 208 240V AC and steps it down to a stable 24V secondary output, providing the consistent current required for contactors, ignition modules, and advanced control boards. With its 75VA power rating, this unit offers significantly more overhead