What do the colors on a thermostat mean?
Rh stands for Red-Heat and Rc stands for Red-Cool. If you only have a single red wire the jumper between Rh and Rc are required for some heating and cooling hybrid systems depending on your thermostat. Yellow/Y is the AC compressor. White/W is the Heating element. Green/G runs the fan.
What is the GREY wire on thermostat?
Other Wire Colors: Gray wire: may be Aux emergency heat, mayu connect to E. The temperature actuated on off switch in a thermostat is actually a single pole double throw switch which will have either the heating or the cooling side closed at all times.
What is the yellow wire for on a thermostat?
The yellow wires underneath your thermostat connect to your compressor. They control your air conditioning system. The yellow wires terminate at your compressor contactor via an air handler. The yellow wires connect to the Y terminals on your thermostat.
What color is thermostat C-wire?
blue wire
The blue wire on the thermostat is the Common or “C” wire.
How do I know if my thermostat has C wire?
It is easy to see if you already have a c-wire connected to your system. Simply remove your current thermostat face from its baseplate and look for the terminal labeled with the letter “c.” If this terminal has a wire attached to it, you have an active “c-wire.”
What are the colors of the thermostat wires?
This thermostat wire color code will help homeowners understand the anatomy of their thermostat: 1 White wires 2 Yellow wires 3 Green wires 4 Orange wires 5 Red or “Rc” wires: Industry standard for geothermal heat pumps 6 Rh wires: Industry standard for geothermal heat pumps 7 Blue or “C” wires
What’s the difference between a blue and orange thermostat?
C wires or varying colors apply to every thermostat, but blue C wires belong to thermostats attached to a heat pump. Blue wires are for heat pumps, like orange wires. This wire connects to terminal B on your thermostat.
What is black wire thermostat?
The black wire may be linked to the C terminal, which controls the transformer. This is most often seen in electronic thermostats where only 24 volts are required. C terminals are connected to the common wire, which is most often black, but can also be other colors.
Where does the RC wire go on a thermostat?
Rc wires connect to the RC terminals on your thermostat. The Rh wire, another type of red wire, is also responsible for 24-hour volt power from your transformer. The Rh wire connects to your heating system as opposed to your cooling system.
This thermostat wire color code will help homeowners understand the anatomy of their thermostat: 1 White wires 2 Yellow wires 3 Green wires 4 Orange wires 5 Red or “Rc” wires: Industry standard for geothermal heat pumps 6 Rh wires: Industry standard for geothermal heat pumps 7 Blue or “C” wires
C wires or varying colors apply to every thermostat, but blue C wires belong to thermostats attached to a heat pump. Blue wires are for heat pumps, like orange wires. This wire connects to terminal B on your thermostat.
The black wire may be linked to the C terminal, which controls the transformer. This is most often seen in electronic thermostats where only 24 volts are required. C terminals are connected to the common wire, which is most often black, but can also be other colors.
Where does the Orange Wire go on a thermostat?
The orange thermostat wire links to your heat pump, if you have one. It terminates in your outdoor condenser for reversing valve operation from hot to cold. The orange wire connects to terminal O on your thermostat. The orange wire only applies to homeowners with an air-source heat pump.
