Programmable Thermostat

This replacement smart thermostat kit is compatible with Resideo THX321WFS3001W systems and equivalent applications requiring advanced climate control solutions. The unit features RedLINK 3.0 wireless technology for reliable communication and includes one wireless indoor room sensor for comprehensive multi-room temperature, humidity, and motion monitoring capabilities. Designed for professional HVAC installations, this thermostat supports flexible heating and cooling configurations. For heat pump systems, it accommodates up to three heating stages and two cooling stages without an expansion module, expandable to four heating and two cooling stages with an Energy Interface Module (EIM). Conventional systems support up to two heating and two cooling stages without EIM, or three heating and two cooling stages with EIM. The unit also supports dual fuel and radiant hot water applications. The compact form factor measures 3.7 inches wide by 4.9 inches high by 0.93 inches deep, with a lightweight design at 0.88 pounds, facilitating straightforward installation in residential and light commercial environments. Power requirements specify 24 VAC operation with common wire connection (R and C terminals), with compatibility across 18 to 30 VAC systems at both 50 and 60 Hz frequencies, ensuring broad applicability in various electrical configurations. This replacement component delivers enterprise-grade wireless connectivity and multi-zone temperature management for property managers, HVAC contractors, and facility maintenance professionals seeking reliable thermostat solutions that integrate seamlessly with existing Resideo-compatible systems.