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Summary of Contents for nest Learning
- Page 1 Nest Learning Thermostat Pro Installation & Configuration Guide Last updated: November 2017 Version: 1.1 ...
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Page 2: Table Of Contents
Table of Contents General Information 2 Nest Learning Thermostat Installation Features 2 HVAC System Compatibility 3 Technical Specifications 3 How to use Pro Setup 4 Installation Overview 5 Supported Wiring 7 Nest Thermostat Connectors 7 Wiring Diagrams: Conventional Heating/Cooling Systems 8 ... -
Page 3: General Information
The Star connector on the Nest Thermostat can control a number of different applications. If you insert a wire into this terminal, the Nest Thermostat will ask you to select the application and will control it based on your selection. For a list of compatible applications that can be inserted into the Star connector, see the wiring ... -
Page 4: Hvac System Compatibility
● Y1 ● W1 ● Wi-Fi is required for software updates and remote Y2 W2/AUX ● ● control with the Nest App ● G ● C Wi-Fi 802.11 b/g/n, 2.4 GHz ● ● O/B ● Secure: AES-128, SSL/TLS, WEP, WPA/WPA2 ... -
Page 5: How To Use Pro Setup
How to use Pro Setup When going through setup on the Nest Thermostat, the first question in the Equipment section asks if you’re a Homeowner or Pro. Selecting Pro will take you through Pro Setup, which has additional options to help ... -
Page 6: Installation Overview
You may need to cover up holes, old paint or marks left by the old thermostat. Ask your customer if they prefer to repair the wall themselves or if they want to have the Nest trim plate installed. Let the customer ... - Page 7 10. Help your customer pair the Nest Thermostat with the Nest App If your customer already has a Nest product and is using the Nest App, show them how to add the thermostat to their Nest account. If it’s your customer’s first Nest product, show them how to download ...
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Page 8: Supported Wiring
Rh 24VAC power from transformer* * No jumper wires required. You don’t need to hang on to any old jumper wires going from Rh (sometimes just called R) to Rc. Nest will automatically jump these two connectors. ... -
Page 9: Wiring Diagrams: Conventional Heating/Cooling Systems
24VAC power from heating transformer ‡ * Fan relay (G) is optional. However, without a G wire, Nest will not be able to control the fan independent of heating. † C ommon wire (C) not required in most cases, but strongly recommended. ... - Page 10 Conventional 3 Stage Heating Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 Heat Relay (Stage 1) W2/AUX ...
- Page 11 Conventional 2 Stage Heating, 1 Stage Cooling Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 Heat Relay (Stage 1) W2/AUX ...
- Page 12 Conventional 3 Stage Heating, 2 Stage Cooling Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2) , 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 Heat Relay (Stage 1) ...
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Page 13: Wiring Diagrams: Heat Pump Systems
Wiring Diagrams: Heat Pump Systems 1 S tage Heat Pump Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 ... - Page 14 1 Stage Heat Pump with Aux heat and Emergency Heat Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 ...
- Page 15 2 Stage Heat Pump with Aux Heat Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2) , 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 ...
- Page 16 Dual Fuel - 2 Stage Heat Pump, 1 Stage Heat Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2) , 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 ...
- Page 17 Dual Fuel - 2 Stage Heat pump, 2 Stage Heat Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2) , 2nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 ...
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Page 18: Wiring Diagrams: Multi-Speed Fans
Wiring Diagrams: Multi-Speed Fans 2 Speed Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2 nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 Heat Relay (Stage 1) ... -
Page 19: Wiring Diagrams: Humidifiers And Dehumidifiers
Wiring Diagrams: Humidifiers/Dehumidifiers Label: Function: Y1 Compressor Relay (Stage 1) Y2 Compressor Relay (Stage 2), 2 nd-speed fan relay G Fan Relay* O/B Heat Pump Changeover Valve Rc 24VAC power from cooling transformer W1 Heat Relay (Stage 1) W2/AUX ... -
Page 20: Configuring Nest Thermostat With Pro Setup
The F an default is D on’t activate . This means that the Nest Thermostat will rely on the system to activate the fan when the furnace (W1) is running. If you test the furnace and notice that the fan is not activating, change ... -
Page 21: How To Configure Complex Systems
Dual Fuel Systems If there’s an O/B wire and one or more W wires connected to the Nest thermostat (which indicates that the system uses a heat pump with an additional heating source), Pro Setup will first ask if the heating system ... - Page 22 If your customer has a multi-speed fan with a single wire, the system will control the fan speed, not the Nest thermostat. This means they’ll be able to use the Nest Learning Thermostat to adjust the temperature and turn ...
- Page 23 Forced Air HVAC Systems - Fan Activation Depending on your fuel source selection, you’ll need to determine when the fan activates for your customer’s heating system. Some systems will activate the fan automatically when the thermostat calls for heat. Some systems will rely on the thermostat to activate the fan. ...
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Page 24: Troubleshooting
B a nd a C , connect to B t o the Nest O /B c onnector and connect the C t o the Nest C ... - Page 25 While we find that in the vast majority of homes the Nest Thermostat can charge its built in battery by power sharing from the regular heating and cooling wires. But in some rare cases a common wire is needed to ...
- Page 26 The heat call is detected by the controller board when the W wire is shorted to the R wire, which causes the 24V AC voltage to be detected. When the Nest thermostat is taking power, a small voltage is generated ...
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Page 27: Reference Materials
As an example, if it’s a heat only system, the Nest Thermostat won’t show any cooling options. If it’s a heat pump, the Nest Thermostat will know and do a special test to check the orientation of the O/B wire. ... - Page 28 Turn the ring and select EQUIPMENT Turn the ring and select HEAT PUMP Adjust ECO Heating and These temperatures are set as the final step during the setup interview. But if the Nest Thermostat is already configured, here are the steps: Cooling Temperatures ...
- Page 29 Follow the Nest App’s instructions, when prompted type in the entry key you obtained in step 4 You’ll see the thermostat appear on the Nest App home screen. Tap the thermostat icon to control it and change settings. Demonstrate how to use the Nest Thermostat: ...
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Page 30: Wiring Error Quick Reference Guide
If the Nest Thermostat senses a problem with the wiring, you’ll receive an “E” error. These errors must be fixed before setup can continue. “N” errors are not as critical and setup will continue but certain features may not ... - Page 31 E89 - Y2 wire without Y1 wire The Nest Thermostat is physically detecting a Y2 wire but not a Y1 wire that is required for 2 stage conventional cooling systems or 2 stage heat pumps. E90 - W3 wire without W2/AUX wire ...
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Page 32: Important Note
The Wi-Fi access point may have security settings enabled that prevent the Nest Thermostat from connecting. W3 - Failed to connect The Wi-Fi access point is not providing a network IP address to the Nest Thermostat. W4 - Failed to connect ... -
Page 33: Troubleshooting Quick Reference Guide
This their Wi-Fi network is online. may happen if: If it is, check the Nest system status in the The customer’s Internet Service upper right of nest.com/support. Nest will Provider is down publish maintenance or outage ... - Page 34 Customer has forgotten the lock code to The Nest Thermostat can be remotely their Nest Thermostat unlocked by logging onto the Nest Account paired with their device from the Nest Web app or from the Nest Mobile app. ...
- Page 35 This system has a humidifier that is separate from the HVAC system. • Install the 2 hum wires directly into the relay. • Run the single wire from the relay to the * terminal. • Nest recommends the White Rogers 90-290Q or similar 24VAC HVAC relay. ...
- Page 36 Install the 2 hum wires directly into the relay • Run the single wire from the relay to the * terminal. • Nest recommends the White Rogers 90-290Q or similar 24VAC HVAC relay. Built-in Humidifier System, 1 Wire ...
- Page 37 Where to Find Additional Help • Help online: ttps://nest.com/support/thermostat/ • Nest Pro Tech Support: 1-855-VIP-NEST (1-855-847-6378) Dedicated Pro Support Hours: 6am-6pm (pacific), 9am-9pm (eastern)
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