Resideo TH105PLUS Programmable Thermostat 321142-301 specifically in applications like air

specifically in applications like air handling units

This is often caused by a faulty 2-stage gas valve or a signal failure from the control board

Always verify your current blower wheel orientation before installation to ensure proper airflow direction

s internal housing before ordering

Enhanced Safety: CSA listed to meet rigorous electrical safety standards

Resideo TH105PLUS Programmable Thermostat 321142-301 specifically in applications like airThe Resideo TH105PLUS is a high performance line voltage programmable thermostat purposefully engineered for precise control of electric baseboard heaters, convectors, and fan forced heating systems. Operating on a 120 240 Vac supply, this unit features advanced Triac switching technology, which provides 100% silent operation by eliminating the mechanical clicking common in traditional relay based models. Industrial grade Triac for electric heat