Resideo TH8321WF1001 Thermostat R-407C we recommend installation by a

we recommend installation by a licensed HVAC technician to ensure proper wiring and safety circuit verification

while the direct-drive design reduces vibration and improves overall system longevity

including those previously utilizing the 02-4881 pressure switch

Rugged Reliability: NEMA Type 4 enclosure protects internal components from moisture and environmental contaminants

Featuring a 3 1/2" dial size and a 304 stainless steel case

Resideo TH8321WF1001 Thermostat R-407C we recommend installation by aThe Resideo TH8321WF1001 is a robust, hardwired Wi Fi VisionPRO 8000 digital thermostat engineered for versatile application in both residential and light commercial environments. Designed to handle up to 3 Heat 2 Cool Heat Pump or up to 2 Heat 2 Cool Conventional systems, this unit provides precise control via 18 30Vac screw terminals. It features a high resolution 10 sq. in. touchscreen interface with 7 day programmable or non programmable options,