What Is The Ob Wire On A Thermostat. What is OB Wire on Thermostat? (Basics, Function, Precautions) White wire for heating (connected to W or W1 terminal) I've gotta tell you troubleshooting the 'OB' wire on your thermostat can seem daunting at first
Honeywell 4 Wire Thermostat Wiring Color Code from guidefixlykoh3.z4.web.core.windows.net
This terminal can be used to control several different system functions, depending on what type of system you have.. Proper Wiring Connections: Ensure that the OB wire is securely connected to both the O/B terminal on your HVAC system and the Nest thermostat
Honeywell 4 Wire Thermostat Wiring Color Code
Orange - This wire connects to your heat pump (if you have one) it appears the brown wire and blue wire both end at the zone controller box, but are not hooked up to anything White wire for heating (connected to W or W1 terminal)
Home Heating Thermostat Wiring Diagram Wiring Diagram and Schematics. Damaging the thermostat unit, the electrical system or even the AC/furnace unit itself This terminal can be used to control several different system functions, depending on what type of system you have..
What is OB Wire on Thermostat? (Basics, Function, Precautions). While thermostat wire colors can vary, you can also sometimes use color as a guide if a wire is in your thermostat's O/B - W terminal. The Nest Thermostat E and the Nest Thermostat's star terminal also have an O/B label because it can alternately be used as an O/B connector for heat pump systems