How do I set up 1-Touch Presets for Home, Away, and Sleep on the XL824?
1-Touch Presets require scheduling to be disabled; navigate to Home > Menu > Schedules & Presets > Use Schedules Off. Then go to Home Screen > Menu > Schedules & Presets > 1-Touch Presets, select the cooling or heating set point for each preset (Home, Away, Sleep), adjust using the up and down arrows, and select Apply. When scheduling is enabled, only the Away preset is available.
From the official Trane XL824 Smart Wi-Fi Thermostat manual, page 18
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