Compatibility/Wiring
Nest Learning Features
HVAC Systems
Nest Error Codes/Messages
Nest Hardware Features
100
This system has R, W, Y, and G wires.
What is a conventional single stage heating and cooling system with fan?
100
This feature tells you the amount of time it will take to reach a given setpoint.
What is Time To Temperature?
100
This system is heating only and uses only 2 wires. It is not compatible with Nest.
What is a millivolt system.
100
Displayed when Nest does not PHYSICALLY detect a viable power source in order to charge it's battery.
What is an E4 error.
100
The part of Nest that is used to make selections and adjust the temperature.
What is 'The Nest Ring'.
200
This system has R, Y, O/B, G, and C wires.
What is a single stage heat pump with fan and common wire?
200
With this feature you can adjust Nest as a standard thermostat, and Nest will learn a schedule based on these adjustments.
What is Schedule Learning?
200
This is the standard delivery method for cooling.
What is forced air.
200
"No power to O/B wire detected".
What is an N7 error.
200
Specifically where the HVAC wires connect to Nest.
What is an Easy Push Connector.
300
https://c.na2.content.force.com/servlet/servlet.FileDownload?file=00P4000000BM1PB
What is a heating only system?
300
This handy green leaf lets you know when you're saving energy.
What is The Nest Leaf?
300
An all in one unit that performs both heating and cooling.
What is a Heat Pump?
300
Nest is not able to produce a Pairing Key when connected to Wi-Fi.
What is "Initializing please try again".
300
Detects movement in order to determine Auto Away and Screen On Approach features.
What are Nest's Activity Sensors. More specifically - Nest's 'Near & Far Field' sensors.
400
This system has 4 unlabeled wires and communicates with the furnace using pulse combinations to activate heating, cooling, and fan functions.
What is a proprietary system.
400
This is calculated using the weather data gathered on Nest's Wi-Fi connection, your manual changes to the temperature, and Nest's use of Auto/Manual Away Modes.
What is Energy History?
400
If a fuse is blown, it can be found on this part of an HVAC system.
What is the control board?
400
Remove one of the following wires to resolve an E4 error code with a wiring configuration of Rh, W1, Y1, G, and C.
What is the C wire.
400
Allows for precise mounting of Nest's base.
What is The Nest Level.
500
This system has Rh, Rc, W, Y, G, C, AUX/W2, and O/B.
What is (most likely to be) a dual fuel system.
500
What setting allows Nest to go into Auto-Away between the hours of 8PM and 8AM.
What is choosing the "business" option during Nest's initial set up.
500
Please describe each component in the following photo, as it pertains to an HVAC system. https://www.dropbox.com/s/ftyuxufw8eiyz1u/LabeledMadeDiagram.jpg
What is: A - Cool/Ambient Air B - Return Register C - HVAC Ducting D - Air Filter E - Control Board F - Ignitor/Flame Sensor G - Gas Line/Control Valve H - Exhaust Vent I - Heat Exchanger J - Blower Fan K - Warming Air L - Damper M - Supply Register N - Warm Air Supply
500
What kind of HVAC system is likely to produce an E6 error code. (include wiring configuration in your response)
What is a Dual Fuel System. Rh, W1, Y1, G, C, O/B, and AUX/W2.
500
Allows for remote access to the Nest device (from the Nest servers) as well as the incorporation of outside weather data for Nest's Energy History display.
What is Nest's built in Wi-Fi chip?
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