Installation Manual

General Information
Nest Learning Thermostat Installation Features
No jumper wires needed
The Nest Thermostat does not use jumper wires, it will automatically jump terminals for you. Do not connect
jumper wires to the Nest Thermostat. Before removing any wires from the old thermostat, including jumper
wires, take a picture of the existing wiring configuration in case you or the homeowner need to reinstall it.
System Match
When you first install the Nest Thermostat, it checks to see what wires you’ve inserted into the base’s
connectors and prompts you for additional information where needed.
Pro Setup
Pro Setup lets Nest Pros configure advanced settings in order to set up complex systems, including dual-fuel
systems, humidifiers/dehumidifiers and multi-speed fans. Pro Setup also activates a customer’s extended
warranty if the Nest Thermostat is purchased from and installed by a Pro.
Silent relays
Nest Thermostats use solid state switching instead of relays so there’s no noise when it switches on or off.
You will not hear any “clicking” during system testing and activation.
Press connectors
Connecting the HVAC system wiring to the Nest Thermostat base is easy using the press connectors. Simply
insert the wire into the connector as far as it will go until the press connector stays in the down position.
Multifunctional Star connector
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
diagrams below.
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