Nest Thermostat Wiring Diagram For Heat Pump

Nest thermostat wiring diagram heat pump.
Nest thermostat wiring diagram for heat pump. Read the particular schematic like a new roadmap. Www.diynot.com before reading a schematic, get acquainted and understand all the symbols. Dual fuel thermostat wifi with outdoor sensor heat pump.
Here is the wiring for 1 stage heat with aux heat and emergency heat from the nest e pro installation guide. Nest assumes that your y1 wire will be used to activate 1st stage heating and cooling for your heat pump. White wire on w, green on g and so on.
As shown in the diagram, you will need to power up the thermostat and the 24v ac power is connected to the r and c terminals. If you are wiring an hvac system or an air conditioner, wiring system would be different from the wiring of the thermostat of a heat pump system. Nest thermostat itself is another generation of heating and cooling devices.
If you have an r, rc or rh wire, you can put it into the r connector on the nest thermostat. How to quick reference guide as an example, if it’s a heat only system, nest won’t show any cooling options. The color of wire r is usually red and c is black.
The nest learning thermostat 3rd gen is simple to set up and install. Aux heat can cost about 2 to 5 times as much as running your heat pump. She sent me an email to reply back with photos of the original thermostat wiring and my current wiring on the nest which helped things along.
It’s important to install the heat link before the nest thermostat. The exposed wire should be straight. I have successfully installed a nest thermostat on the downstairs unit.