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    ABB-free@home Thermostat (ABTH11) — Quick Start Guide

    September 08, 2026 2 min read

    Quick start guide for the ABB-free@home Wireless Thermostat (ABTH11), covering the touchscreen controls and Eco energy-saving mode.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Quick start guide for the ABB-free@home® Wireless Thermostat (ABTH11) — covers the touchscreen controls, heating/cooling modes, and energy-saving Eco mode.

    Overview

    The ABB-free@home Thermostat is a wireless thermostat you can operate at home, at the office, or from anywhere via the free@home app. The large display shows the current temperature and setpoint temperature, and can optionally display the outdoor temperature instead.

    ABB-free@home Thermostat touchscreen control diagram showing fan, heat, cool, and Eco mode icons
    Touchscreen control layout — tap any symbol to activate that function

    Touchscreen Controls

    Symbol Function
    Temp Values Large number = current temperature; small number = setpoint temperature. Can be configured to show outdoor temp instead.
    Arrows Tap up or down to change the setpoint temperature.
    Settings Tap to enter settings mode, tap again to exit.
    Fan Set to ON or AUTO (default). Tap to turn the fan on manually.
    Heating Tap to enable/disable heating mode. Indicator glows red while actively heating.
    Cooling Tap to enable/disable cooling mode. Indicator glows blue while actively cooling.
    Eco Energy-saving mode for when you're away — decreases the heating setpoint or increases the cooling setpoint. Tap to activate/deactivate.
    On/Off Tap to turn the thermostat (and all connected appliances) OFF/ON. Only the protection function stays active while off.
    Accessory Activate/deactivate an accessory function such as a humidifier or dehumidifier.
    Auxiliary Heating Only used when a heat pump is controlled — indicator is on when auxiliary heating is enabled.
    Protection Indicates heating/cooling was automatically activated to protect the HVAC system and home from overload or extreme temperatures.

    Cleaning the Screen

    Press and hold the large temperature number for 3 seconds to lock the screen for cleaning.

    For the complete system manual, visit www.abb.com/freeathome.