Installation Manual

3GLAS smart thermostat installation instructions -
©
2018 Johnson Controls
Compatibility
GLAS is compatible with most 24 VAC heating and cooling systems.
Use the compatibility checker to ensure your system will work with GLAS by going to
www.glas.johnsoncontrols.com/compatibilitychecker.
Heating One or two stages
Cooling One or two stages
Heat Pump One or two stages with one or two stages auxiliary heat
Fan Single-speed fan
Auxiliary Humidier, dehumidier, or ventilator (including HRV or ERV)