If it can't catch up it will use the auxiliary heat to supplement.
What got tricky was the B wire, which Nest has an O/B slot and the X2 wire, Here is how I now have my Nest 3rd Generation thermostat wired and working. Wiring Diagrams: Conventional Heating/Cooling Systems.
8. Wiring Diagrams: Troubleshooting. Handling Unusual Thermostat Wiring.
23. Reference Materials.
26 Heat pump: with auxiliary/alternate and emergency heat (O/B, AUX. Nest Learning Thermostat Manual Online: Wiring Diagrams: Heat Pump Systems. 1 stage heat pump 1 W2/AUX.
Heat Relay (Stage 2)/Auxiliary Heat Relay. C.
Using Auxiliary Heat with a Nest Thermostat -- Explore a wide variety of topics In normal operation, a heat pump works like an air conditioner: a see " Equipment detected" and a diagram of the backplate with the wires that. Nest gen 3 with system that is no longer heat pump and gas for emergency heat the compatibility tool to get a custom wiring diagram for your Nest thermostat.Jan 06, · I assume that the heat pump's "emergency heat" (or maybe "auxiliary heat"?) isn't being activated, because of a wiring problem.
The Nest itself lights up red, indicating that it's aware that it should be using emergency heat. Oct 10, · This covers the color code for the thermostat wires used on heat pumps.
This video is part of the heating and cooling series of training videos made to accom Skip navigation. Dec 11, · In this video we go over the heat pump balance feature in the programming of the NEST thermostat.
It is important to know how to change this setting in the event that auxiliary or second stage. Using Auxiliary Heat with a Nest Thermostat If you have a central HVAC (heating / ventilation / air conditioning) system called a "heat pump", and live in an area where the temperature in the winter goes below about 50°F (or 10°C) then you probably have something called "emergency heat" or . Heat Pump Thermostat Wiring Chart.
This is for use for heatpumps. You should % make sure that you have a heat pump system and not an air conditioner with electric heating strips as it is a common mistake for people to misidentify their HVAC systems.Using Auxiliary Heat with a Nest Thermostat at MROBUsing Auxiliary Heat with a Nest Thermostat at MROB