Google Nest Learning Thermostat 4th Gen Installation And Configuration Manual page 21

Key Features and Functionality
Utility Rebates and Programs
Nest thermostats are eligible for rebates through local utility providers. Some rebates require enrollment
in programs and features that work on Nest thermostats, such as Rush Hour Rewards. For more
information about Rush Hour Rewards, visit this link. For other energy-saving features and programs,
visit this link or check out the glossary for links to specific features.
How do Nest thermostats handle outdoor temps?
We use local weather data for the features dependent on temperature, which can be displayed on
the thermostat.
We are able to read outdoor weather data without an additional sensor by connecting the Nest Learning
Thermostat to the internet using home Wi-Fi.
Outdoor temperatures are an important factor for compressor lockout temps, aux lockout temps, and dual fuel
breakpoint.
Staging
:
When there is a call for heating/cooling, the thermostat will not engage a second stage unless the
temperature goes in the opposite direction within the first 15 minutes.
If the temperature does not go in the opposite direction from the call to heat/cool, the thermostat will wait 60
minutes for conventional heating to upstage, or 2 hours for cooling.
The second stage of heating or cooling will turn on when the user adjusts the set point 3.3°F beyond the
current temperature, while the third stage will need a change of at least 7°F to activate.
At the start of a heat cycle, auxiliary heat is disabled due to the aux minimum delay. After the minimum delay,
aux may be enabled if the temperature decreases or the aux upstage timer is reached. Aux is disabled if the
temperature reaches the droop threshold.
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