Trane TCONT203AS42MA 326058-757 preventing localized hotspots and improving

preventing localized hotspots and improving overall SEER ratings

the R18 resistor can be cut to enable a continuous heating-speed blower

Enhanced System Safety: Restores proper flame patterns to reduce the risk of heat exchanger damage

ensuring the system maintains correct electrical sequencing

Smith parts ensures long-term reliability and peak performance for commercial and residential 285 series units

Trane TCONT203AS42MA 326058-757 preventing localized hotspots and improvingThe Trane TCONT203AS42MA (XR203) is a precision engineered 7 day programmable thermostat designed for high performance multistage applications, supporting up to 4 heating and 2 cooling stages. This commercial grade control is ideal for dual fuel systems, standard gas electric configurations, and complex heat pump systems. Its 3. 5 inch backlit display and soft key interface provide a streamlined experience for contractors managing advanced HVAC