Resideo TB7100A1000 Thermostat 319825-402 the 8105-062BX is the manufacturer-designated

the 8105-062BX is the manufacturer-designated upgrade for the legacy 8105-062 model

High-Efficiency Performance: Optimizes refrigerant heat rejection to maintain suction pressure stability

Can I expand the system beyond four zones

Secure Electrical Junctions: High-quality brass terminals prevent voltage drops and loose contacts

it provides the necessary reach for standard furnace ignition systems and commercial boiler configurations

Resideo TB7100A1000 Thermostat 319825-402 the 8105-062BX is the manufacturer-designatedThe Resideo TB7100A1000 MultiPro 7000 Thermostat is a high performance commercial and residential control designed for versatile equipment management, including 2 or 4 pipe fan coil systems, PTAC units, and conventional heat pumps. Built with a backlit digital display, this multispeed thermostat supports 1 Heat 1 Cool conventional and up to 2 Heat 1 Cool heat pump configurations. Integrating the VersaSpeed fan ramping algorithm, the TB7100A1000