What Is The Ob Wire On A Thermostat. 4 Wire Thermostat Wiring Thermostat Wiring Diagrams Wire Installation If you removed the thermostat display from your thermostat, you may notice that there is a terminal labeled O/B on your thermostat and a wire as well 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.
What is OB Wire on Thermostat? (Basics, Function, Precautions) from toolsweek.com
To get the most out of your Nest thermostat and the OB wire that controls the reversing valve on your heat pump system, consider these tips for optimizing its performance: 1 Let's start with understanding what we're dealing with here
What is OB Wire on Thermostat? (Basics, Function, Precautions)
One is for cool and the other is for heat, hence the abbreviation "RH" and "RC" One is for cool and the other is for heat, hence the abbreviation "RH" and "RC" 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
4 Wire Thermostat Wiring Thermostat Wiring Diagrams Wire Installation. Let's start with understanding what we're dealing with here it appears the brown wire and blue wire both end at the zone controller box, but are not hooked up to anything
What is OB Wire on Thermostat? (Basics, Function, Precautions). A reversing valve is a small device on a heat pump system that moves between two positions depending on the OB settings on your thermostat. The OB wire controls your HVAC system's heating and cooling functions.