What Is The Ob Wire On A Thermostat. Home Heating Thermostat Wiring Diagram Wiring Diagram and Schematics 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 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) from toolsweek.com
Let's start with understanding what we're dealing with here 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.
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.. 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
What Is the OB Wire on a Nest Thermostat CitizenSide. It's used for systems that don't provide a C wire but have a thermostat that requires one 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
Home Heating Thermostat Wiring Diagram Wiring Diagram and Schematics. What are the 4 wires on a thermostat? 4 Wire Thermostat Wiring (Heat Pumps, HVAC) Red wire for power (24V) 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