NEST THERMOSTAT WIRING DIAGRAM WITH OB WIRE
Thermostat Wiring Colors Code [HVAC Wire Color Details]
Thermostat Wiring and Wire Color Chart – Thermostat Wiring Colors Code; Tstat Terminal Designation: Color of Wire and Termination: R – The R terminal is the power. This is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit.
Nest Learning thermostat Installation And Configuration Manual
Page 22 The 2nd generation Nest Learning Thermostat will use System Match to recognize your system as a two-stage heat pump if you’ve connected Y1, Y2, and O/B wires. Nest assumes that your Y1 wire will be used to activate 1st stage heating and cooling for your heat pump.[PDF]
Thermostat E Installation Guide - Nest
a Nest Pro in your area. Wiring tips Wire colors can vary, but: • Common or C wires are generally blue. • If there’s an orange wire in the connector labeled both W and O/B, then you likely have a heat pump. Put this wire in the Nest Thermostat’s * O/B connector. • If there’s a white wire in the connector labeled both W and O/B,[PDF]
Thermostat Wiring Guide - Reliant Energy
Thermostat Wiring Guide | 4 Thermostat RH RC Z W2 W C Y Y2 G OB OB Diagram of conTrol wire connecTions for 7-wire mulTi-sTage heaT pump wiTh mulTi-sTage auxiliary heaT conTrol wires plus c wire O wire (or) B wire – changeover valve NOTE: If both O and B are present connect ONLY the O wire.
Nest 2.0 With Heat Pump & Aux Heat - thermostatforums
Oct 25, 2012I have a Lennox heat pump with electric emergency/aux heat, I also have a humidifier. I'm getting an E33 error, and Nest thermostat is telling me that I can only have one auxiliary heat wire. The diagram on Nest indicates that W1 and W2 are Aux heat, and OB is "heat pump". From what I've been reading, W1 is primary heat, W2 is Aux heat and O B is for the reversing valve.
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