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Emerson Climate Technologies 1F89EZ-0251 is a low-voltage, 2-inch thermostat designed for heat pump and forced-air systems with Z-Wave connectivity and push-button controls. The unit supports 2 heat/1 cool wiring, can be hardwired or battery powered, and offers Home, Sleep, and Away modes. It includes adjustable differential, dual-transformer compatibility, auto/on fan settings, positive-off, and a control range of 45°F to 99°F.
Low-voltage 2-inch thermostat for heat pump and forced-air systems with Z-Wave, 2H/1C support, hardwired or battery power, and mode/fan controls.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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