Aprilaire 8466 Thermostat 322838-753 which is functionally identical to

which is functionally identical to the 312867H/U model

With a precise 8

ensuring an exact fit for the outdoor condensing unit to prevent debris entry and accidental contact with high-speed fan blades

preventing floodback during high-load periods or defrost cycles

Designed for professional HVAC/R contractors

Aprilaire 8466 Thermostat 322838-753 which is functionally identical toThe Aprilaire 8466 Thermostat is a high performance universal programmable thermostat designed to provide precision control over your indoor climate. Engineered for versatility, this multi stage thermostat supports up to 2 stages of heating and 2 stages of cooling for conventional systems, or up to 4 stages of heating and 2 stages of cooling for heat pump systems. With flexible 5 1 1 day programming or 5 2 day scheduling, you can customize your