It is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit. This is a show and tell video i am showing what.
Some thermostat wires that coming from the air conditioner unit with four wires and there is no common wire.
Ac thermostat wiring diagram. Explaining to home owners or do it yourselfer s about thermostat wiring. In this article i am going to explain the function and wiring of the most common home climate control thermostats. Heat pumps are different than air conditioners because a heat pump uses the process of refrigeration to heat and cool while an air conditioner uses the process of refrigeration to only cool the central air conditioner will usually be paired with a gas furnace an electric furnace or some other method of heating.
We will focus mainly on the basics of. Set up the nest thermostat the first step in setting up the nest thermostat is selecting your language. These four wires are.
To navigate through setup as well as the different menus when you have it set up spin the silver dial on the unit in either direction to move the selector on the screen and then push on the entire unit to select it. Variety of ac thermostat wiring diagram. Home ac thermostat wiring diagram mobile house diagrams best air conditioner parts further duo therm wiring diagram honeywell thermostat 3 wire maseratiusa co wonderful heat pump thermostat wiring diagram photos ac heater thermostat wiring sezeriya com home depot thermostat wire nuuufoundation club.
A wiring diagram is a simplified conventional pictorial depiction of an electrical circuit. This information is designed to help you understand the function of the thermostat to assist you when installing a new one or replacing or up grading an old one. Air conditioning thermostats wire are color coded in white yellow green red and c common wire.
Thermostat wiring and wire color chart thermostat wiring colors code. A step by process made easy to understand air conditioning thermostats. I had seen common wires are sometime blue black or brown.
R the r terminal is the power. It reveals the elements of the circuit as streamlined forms as well as the power as well as signal links in between the gadgets. Standard ac with standard furnace control wiring standard furnace standard thermostat standard a c condenser 1st stage heat white 24 volt fan only operation common air conditioning ac contactor control board 1 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system.
W for furnace r for 24 volt y for air conditioner. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams. Color of wire and termination.