What Is The Ob Wire On A Thermostat. how to check thermostat power Wiring Work At the heart of a thermostat's wiring system lies the O/B wire, which serves as a crucial link between the thermostat and the heat pump in HVAC setups 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.
1 Wire Thermostat Wiring Diagram Activity diagram from activitydiagrams.blogspot.com
This simply means that your system is a heat pump. One is for cool and the other is for heat, hence the abbreviation "RH" and "RC"
1 Wire Thermostat Wiring Diagram Activity diagram
This simply means that your system is a heat pump. White wire for heating (connected to W or W1 terminal) Orange - This wire connects to your heat pump (if you have one)
My Nest isn’t detecting my OB wire and is blowing hot air, but our. I've gotta tell you troubleshooting the 'OB' wire on your thermostat can seem daunting at first The OB wire controls your HVAC system's heating and cooling functions.
What is OB Wire on Thermostat? (Basics, Function, Precautions). This terminal can be used to control several different system functions, depending on what type of system you have.. At the heart of a thermostat's wiring system lies the O/B wire, which serves as a crucial link between the thermostat and the heat pump in HVAC setups