Rh Vs Rc Nest. What Is The Difference Between RH And RC On A Nest Thermostat The RC terminal is for cooling-specific functions, while the RH terminal is for heating-specific functions Rh: If you don't have an Rc wire, the Rh wire is the power wire for both your heating and cooling systems
Nest Red Wire To Rc Or Rh Uploadard from uploadard82.blogspot.com
In this case, the R wire should be connected to both the RH and RC terminals Some HVAC systems, called dual transformer systems, use separate power sources for heating and cooling (Rc and Rh).
Nest Red Wire To Rc Or Rh Uploadard
So, if you have a supply of 24 V AC, there will be a jumper from the Rh to the Rc The RC terminal supplies the 24-volt cooling power, and the RH terminal is the 24-volt heating power supply If you just have an R wire, it's responsible for powering your entire HVAC system (through the use of a transformer)
Nest Red Wire To Rc Or Rh Uploadard. If you have an Rh and an Rc wire, the Rh wire is the power wire for your heating system It's the same with the RH wire in that it powers the thermostat
Nest 3 Generation Wiring Diagram Rc And Rh. In this case, the R wire should be connected to both the RH and RC terminals The RC terminal supplies the 24-volt cooling power, and the RH terminal is the 24-volt heating power supply