Get started with your
G² Smart Thermostat

Watch our detailed video explaining how to install your Greenlite thermostat with a C-wire: https://www.youtube.com/watch?v=aCJt7UWItVs

Watch our detailed video explaining how to install your Greenlite thermostat without a C-wire: https://www.youtube.com/watch?v=itpaZtRbCuw

Learn how to operate your new Greenlite G2 Thermostat by watching this simple video: https://www.youtube.com/watch?v=Yo2sEWHNgs0

Learn how to the use the Greenlite Thermostat App to operate your Greenlite G2 Thermostat: https://www.youtube.com/watch?v=m6Ykuu-1BAA

Learn how to connect your Greenlite G² Thermostat to iOS and Apple Home Kit in this short video: https://www.youtube.com/watch?v=m0PURome2kM

Learn how to connect your Greenlite G² to Amazon Alexa Device in this video: https://www.youtube.com/watch?v=GoFJU3RHJDA

Learn how to connect your Greenlite G² Thermostat to an Android device in this video: https://www.youtube.com/watch?v=b1KrV3OZCQE

Download the G2 Installation Manual (PDF format, 1MB)

• A radius can be set around a location
• Whenever all users with access to this location leave this radius (with their phone) the devices within a location will be set to their away set point
• When a single user returns to the location, the devices will resume normal operation

• Press the aware button or access the location settings for a chosen location to set the radius
• The radius can be set as tight as .3 miles, or as wide as 60 miles around the chosen location
• To disable this feature, press the Aware button and then “Turn Off Home and Away Aware”

• While in home mode, your devices will behave according to your instructions
• If one user is within the radius for the location, the devices will operate in home mode
• Devices will follow your schedule, respect a pause in the schedule, or stay at your chosen stop set point as appropriate

• While in away mode, your devices will go to their respective away set points
• The away set point can be adjusted by editing the scheduling options for a device, and pressing the thermometer icon in the upper right
• A location can manually be set to away mode with the home/away toggle button

• To get started, press the edit locations button
• Press the name of an existing location to edit its information
• Press Add Location to add an additional location

The Greenlite Thermostat App takes an intuitive approach to organizing your thermostats and locations:

• A location is where your devices are located
  • Examples: Home, Office, Beach House
• Your account can have any number of locations associated with it
• Those locations can have any number of thermostats, referred to as devices, assigned to them
• A location can be shared to other users, who will have access to the devices in that location

• When you login to The Greenlite Thermostat App, you will be presented with a list of locations
• Selecting a location will display all of the devices assigned to that location
• Locations can be added, removed or edited through the Edit Locations tool at the bottom of the screen

• Devices can be easily added or removed to a location through the edit devices tool
• Touching the name or icon of a device will bring up the controls for that device
• From a devices dashboard, a user can easily swipe between each of the devices within a location using left and rightward swiping gestures.
• Each device within a location can have its own schedule, and be run in its own schedule mode

• Users can now be added or removed through the app
• Users can be added through the edit location and edit user tools
• When inviting a user, you will be able to choose which locations they can access
• The users invitation will be sent to their email address

• While running a schedule, your device will change to different set points throughout the day, based on your settings
• While a pause is active, your device will maintain your chosen set point until the selected time and date
• While the schedule is stopped, your device will maintain your chosen set point indefinitely

• To access the scheduling options, press the calendar icon on a devices dashboard
• Each day can have an entirely different schedule, and can be set to a 2 or 4 event format
• Repeat allows a days schedule to be copied to every day, every weekday (or weekend if Saturday or Sunday), or a user selected set of days through the custom option
• To edit a scheduled event, touch it on the screen

• To set a pause, access your schedule settings through the calendar icon, and press “pause schedule”
• You will be able to set the pause to last until a given time and date within the year
• To confirm a pause, press the Pause Schedule button above the red Schedule Off button

• To stop the schedule, access your schedule settings through the calendar icon, and press the off/standard button to set it to off
• While the schedule is stopped, there will be a red dot on the calendar icon
• A device will still follow home and away aware settings while the schedule is stopped

• From the dashboard of your thermostat, tap the calendar icon.
• Touch a scheduled event to adjust its start time and set-point temperature
• Press Repeat to copy the current day other days of the week
• The schedule can be converted between 2 and 4 even formats by pressing “Switch to 2/4 Events”
• Pressing Pause Schedule will allow you to set an override until a specified time and date
• The Off/Standard toggle disables and enables your schedule, and the Home/Away toggle will quickly set your thermostat to its away set-point.

• To get started, select a location and tap on a thermostat within the location. This will take you to the dashboard for that thermostat
• Pull the pointer on the dial wheel to the left or right to lower or raise the temperature by up to 5 degrees in one motion
• Tap the dot with an arrow symbol beneath the dial to set the comfort and fan modes
• Tapping the thermostat icon in the bottom left will give you access to a limited set of advanced options. Lock/Unlock, F/C, and backlight duration.

Programmable thermostats automatically change the thermostat’s set temperature between comfort levels and energy saving levels at specified times, according to the programs you set up. Generally, to save energy, you would set up 4 program periods for each day – 2 comfort programs and 2 energy saving programs. Here is an example of typical comfort and energy saving program periods for weekdays:

Yes, Greenlite programmable thermostats can be used to replace most conventional low voltage and millivolt thermostats. The same wires used for installation of conventional mechanical thermostats are used for installation of programmable electronic thermostats.

Yes, programmable thermostats can save energy and save you money on utility bills. According to the U.S. Department of Energy, a programmable thermostat can reduce heating costs by up to 35% and cooling costs by up to 25%. Your savings will largely depend on the length of your energy saving program periods and the temperatures set. For example, an energy saving period of 10 hours with the temperature set back 10° will save more than a 5 hour energy saving period with the temperature set back 5°.

Don’t worry, all Greenlite thermostats are pre-programmed with a typical energy-saving schedule, with separate programs built-in for Heat and Cool.

Yes! You can change any of the preset times and/or temperatures to suit your schedule.

Yes, Greenlite has a staff of trained technicians to help you with any questions you may have. The technical assistance telephone number is 844.695.9090.

They can be either or. Installation is made easier with a C-wire connection (5 wire). If a C-wire is not available, the power bridge can be installed to adapt it to a 4 wire system as long as there is a common terminal on the air handler control board and the heat is gas/petrol based.

The wires coming out of the wall will attach to a “lettered” terminal on the base of your thermostat. The system common terminal is labeled “C”; if you have a wire connected to this terminal, you are system powered.

You can use the included Power Bridge to power and operate your thermostat. Alternatively, your local heating/cooling (HVAC) professional can install a “C” wire for your existing thermostat.

Changes requested through Alexa voice commands will be visible on the thermostat display screen and the mobile app.

Changes you make to your thermostat settings from the website can take up to five minutes to take effect on your thermostat. For the mobile apps, changes should take effect immediately when you are connected to the same wireless network as your thermostat. Changes made from other wireless networks or from outside your home can take up to five minutes to take effect.

Your thermostat will maintain the schedule you have set for it even when it’s not connected to the Internet. To reconnect your thermostat:

First check that your wireless router is working and you have access to the Internet. If your Internet connection or router is down, your thermostat will reconnect automatically when your Internet connection is restored.

If that doesn’t work, confirm that your thermostat is connected to your router. If your thermostat is connected to your WiFi router, you’ll see a WiFi icon on the upper right hand corner of the screen. If not, your thermostat is not connected to your router, and you should continue with the suggestions below until your thermostat is connected to your router again.

Try resetting your thermostat. Remove the thermostat from the wall and press the RESET button on the back. Once pressed, replace the thermostat on the wall. Once the thermostat is connected to your router, it will display a WiFi icon on the upper right hand corner of the thermostat’s screen.

If none of the above steps resolves the issue, you should perform the setup process again. Consult the product manual for instructions.

For Heat Pump systems, ensure that the thermostat is configured for the Heat Pump system type.

If you want to cool your home, make sure that your thermostat is in Cool or Auto mode and that your target temperature is below the ambient temperature shown on the thermostat. If you want to heat your home, make sure that your thermostat is in Heat or Auto mode and that your target temperature is above the ambient temperature shown on the thermostat.

If the thermostat was just installed, review the wiring connections that were made for any errors. Make sure you were using the correct wiring diagram for your specific heating/cooling system type.

Contact our Technical Assistance Line (844.695.9090, techsupport@greenliteusa.com) or your HVAC service company. Please make sure that you are prepared to provide us with the exact terminal letters and wire colors from your previous thermostat. NOTE: any wires that were not used on your previous thermostat will not be used on the new thermostat.

The wires coming out of the wall will attach to lettered terminals on the base of your thermostat. The system common terminal is labeled “C”; if you have a wire connected to this terminal, then you are system powered and can proceed with a typical c-wire installation.

Use the Power Bridge, included in the package with G2 thermostats. Please refer to the “Installing without a c-wire” section in the Installation Manual or watch our video online: https://www.youtube.com/watch?v=SGTZ_0Yp0iY

Alternatively, your local heating/cooling (HVAC) professional can install a C-wire for your thermostat.

Use the Power Bridge, included in the package with G2 thermostats. Please refer to the “Installing without a c-wire” section in the G2 Installation Manual, or visit this link to view the manual online.

Alternatively, your local heating/cooling (HVAC) professional can install a C-wire for your thermostat.

The G2 will not support an actual 2 stage heat pump system. However, a lot of users refer to a regular 1 stage heat pump with Emergency/Auxiliary heat as a 2 stage heat pump system. The G2 will work in a 1 stage heat pump with auxiliary heat setup, whether it’s dual fuel or all electric.

Setting a schedule saves you money and energy. Many people don’t set heating and cooling schedules because their thermostats are just too difficult to operate. Using the Greenlite Thermostat App to control your thermostat offers an intuitive interface that makes setting your schedule a breeze.

The set temperature is the temperature your thermostat will keep your home at or near. If your home is in cooling mode, your cooling system will turn on if the temperature in your home rises above the set point. If your home is in heating mode, your heating system will turn on if the temperature in your home falls below the set point.

If your thermostat is in Cool mode, your cooling system will turn on if the temperature in your home rises above the set point. Cool mode is best for the summer months, when there’s no chance you’ll want your heat system activated. To protect your cooling equipment from possible damage, do not use Cool mode when the outdoor temperature is below 50°F/10°C.

If your thermostat is in Heat mode, your heating system will turn on if the temperature in your home falls below the set point. Heat mode is best for the winter months, when there’s no chance you’ll want your cool system activated.

If your thermostat is in Auto mode, heating or cooling modes will be automatically activated within the range of your heating and cooling schedules. To protect your cooling equipment from possible damage, do not use Auto mode when the outdoor temperature is below 50°F/10°C.

If your thermostat is in Off mode, you are not using your HVAC system to control your home’s temperature.

When your fan is set to Auto, it remains off until needed to circulate warm or cool air through your home. When your fan is set to On, it runs continuously, even if your HVAC system is not actively heating or cooling your home. Setting your fan to Auto is the more energy-efficient choice.

The IAQ mode uses your fan to intermittently circulate air in your home, which keeps the air quality in your home clean, fresh, and healthy.

If your thermostat is in Auto mode, Heat or Cool modes will be automatically activated within the range of your heating and cooling schedules. You may notice that on the website and mobile apps you can’t make any temporary changes to the current Set Temperature. Additionally, you won’t see the current Set Temperatures for Heating and Cooling.

First, make sure that your thermostat is installed and can be controlled by the Greenlite Thermostat App. To connect your thermostat with Google Home, please visit this article for detailed instructions.

To connect your thermostat with an Android device using the Google Assistant, please visit this article for detailed instructions.

To connect your thermostat with an iOS device using the Google Assistant, please visit this article for detailed instructions.

• Here are some example:
  • Turn on the heat.
  • Set the (thermostat name) thermostat to 72.
  • Make it warmer.
  • Raise the temp by 4 degrees.
• For a full list of supported commands, visit Step 5 of this article.

• First, make sure that your thermostat is installed and can be controlled by the Greenlite Thermostat App. Next, go to the Amazon Alexa mobile App. In the Skills section of the main menu, search for LUX Products and click enable to complete the connection.

Here are some examples:

• What’s the temperature in (thermostat name)?
• Set the (thermostat name) temperature to 72 degrees.
• Increase the (thermostat name) by 4 degrees.

Your thermostat will maintain the schedule you have set for it even when it’s not connected to the Internet. To reconnect your thermostat:

First check that your wireless router is working and you have access to the Internet. If your Internet connection or router is down, your thermostat will reconnect automatically when your Internet connection is restored.

If that doesn’t work, confirm that your thermostat is connected to your router. If your thermostat is connected to your WiFi router, you’ll see a WiFi icon on the upper right hand corner of the screen. If not, your thermostat is not connected to your router, and you should continue with the suggestions below until your thermostat is connected to your router again.

Try resetting your thermostat. Remove the thermostat from the wall and press the RESET button on the back. Once pressed, replace the thermostat on the wall. Once the thermostat is connected to your router, it will display a WiFi icon on the upper right hand corner of the thermostat’s screen.

If none of the above steps resolves the issue, you should perform the setup process again. Consult the product manual for instructions.

Maybe. If you use the same wireless router and network name, your thermostat should reconnect automatically in your new location. Otherwise, you must reconnect your thermostat to the Internet using the setup process. Don’t forget to update your Profile with your new location’s information.

Different systems require different setup options. When the thermostat’s SYSTEM TYPE settings are adjusted properly, this sends the appropriate fan signals for applications that require the thermostat to trigger the blower fan during heating (as opposed to the system handling this task).

Check that the Fan mode is set to AUTO, instead of ON. If the blower fan continues to run after removing the front half from the wall plate (for at least 5 minutes after removal), this would indicate that there is a fault in the HVAC system, not the thermostat. Consult your local HVAC technician for service.

First, check that the thermostat’s OFFSET setting is not set to 0 (zero). This needs to be set to at least 1 or higher for the 2nd stage of heating to work. If this doesn’t resolve the issue, confirm that the Aux heating wire is attached to the thermostat’s “W2” wire terminal.

On the thermostat connected to your heat pump, confirm that the Aux heating wire is attached to the “W2” wire terminal. The “W2” terminal is used for both Aux heat and also Emergency Heat.

Remove the thermostat body from the wall plate. Check to see if the heating or cooling output turns off within the next few minutes. If it does not, these components can be turned off at the circuit breaker panel.

If the thermostat was just installed, review the wiring connections that were made for any errors. Make sure you were using the correct wiring diagram for your specific heating/cooling system type.

Note that if you are trying to use your cooling system, the thermostat may not activate a cooling stage until its compressor protection time has elapsed (this may be a long as 5 minutes).

Fill the hole behind your thermostat that contains its wires with non-combustible insulation or putty to prevent any drafts. Drafts from this hole can impact the thermostat’s room temperature measurement accuracy.

For Heat Pump systems, ensure that the thermostat is configured for the Heat Pump system type.

If you want to cool your home, make sure that your thermostat is in Cool or Auto mode and that your target temperature is below the ambient temperature shown on the thermostat. If you want to heat your home, make sure that your thermostat is in Heat or Auto mode and that your target temperature is above the ambient temperature shown on the thermostat.

If the thermostat was just installed, review the wiring connections that were made for any errors. Make sure you were using the correct wiring diagram for your specific heating/cooling system type.