What system modes are available on the Honeywell thermostat?

Available system modes include Auto (thermostat automatically selects heating or cooling as needed), Heat (heating system only), Cool (cooling system only), Em Heat (auxiliary heat only, available only on heat pumps), and Off (both systems off, though fan may still run if set to On). To change modes, press Menu and then Mode, cycle through options until you see the desired mode, and press Done.