Resideo AT20B1056 Transformer 326010-701 a staple in high-capacity commercial

a staple in high-capacity commercial and industrial applications like burners

or restricted airflow over the evaporator coil (such as a frozen coil or dirty filter)

and 250C units

preventing internal corrosion and ice formation at the expansion valve

For VFD-controlled motors

Resideo AT20B1056 Transformer 326010-701 a staple in high-capacity commercialThe Resideo AT20B1056 is a professional grade 120V to 24V step down transformer engineered for high reliability in residential and light commercial HVACR control circuits. Delivering a 20VA power rating, this unit is specifically designed to power 24VAC thermostats, zone valves, and relay coils with consistent voltage output. The channel frame mounting configuration allows for secure installation directly onto junction boxes or appliance cabinets,