Introduction; Support; Phone And Tablet Support; Installation And Set Up - Johnson Controls GLAS Technical Bulletin

GLAS Smart Thermostat
Technical Bulletin

Introduction

GLAS is a multi-functional thermostat designed to configure temperature controls, monitor air quality, and aid
energy savings in commercial and residential applications. GLAS features a translucent, color touchscreen display
with an intuitive user experience that makes installation and setup simple.
Refer to the GLAS Thermostat Installation Instructions (LIT-12012975) for important product application
information.

Support

How-to videos and FAQs are available at https://glas.johnsoncontrols.com/support.

Phone and Tablet Support

GLAS offers remote control and support through a smart phone or tablet. By generating a username and password,
you have access to control setpoint preferences, edit schedules, view air quality, and energy savings. By setting up
a GLAS account before beginning the installation and setup process, you are provided with a guided setup and
wire compatibility checker.
Create your GLAS account by downloading the GLAS app from the Apple App Store or the Google Play Store and
following the prompts in the app to sign up.

Installation and Set Up

The smart device simplifies installation and setup. Following the intuitive mobile walk-through and the on-device
configuration lets you complete the installation, from wiring to configuration, in less than 30 minutes.

Follow the Walk-through

Wire Detection

Once you have wired the thermostat, the device will auto-detect your HVAC configuration. If the displayed
configuration does not match the wiring, you can easily adjust it by tapping the terminal on screen and forcing the
terminal to register.
Note: If the C or RC connection is not detected, you will need to contact technical support.
Note: GLAS requires a C-wire to be connected or the included C-wire adapter to be installed in the HVAC
system.
Note: The C-wire adapter requires R, Y, and G thermostat wires to use the adapter to power the device.

Equipment Selection

For GLAS to properly control your system, select your heating configuration (single or dual stage), cooling
configuration (single or dual stage), heat pump, and auxiliary devices (if applicable). The device will use the
detected wires to provide you with the correct configuration options.
GLAS Smart Thermostat Technical Bulletin
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