Its there so you can supply power to the heating and cooling switches with a single wire which is usually red. Find out if your home is compatible with a honeywell home thermostat.
1 Wire Thermostat Wiring Diagram Wiring Diagram Images
Honeywell 4 wire thermostat wiring diagram. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. Learn more about resideos response to covid 19. Youll probably see a thermostat jumper wire connecting the rc and rh terminals. To develop a pcb layout you must know the associates of components component sizes footprints and a myriad of extra properties. Honeywell thermostat wiring diagram 4 wire examples. Use our helpful tool to take an assessment of the existing wiring in your home.
Keep in mind that there should be a low voltage cable in the wall where the thermostat is located which has individual wires as shown in the instructions below. C 24 vac common you might see blue purple or brown typically used for this wire. Some have the common c wire while others do not. However your connections may seem a little different on the thermostat itself. We have both a natural gas furnace and an ac unit. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams.
4 wire honeywell thermostat wiring diagram a pcb layout is the resulting design from taking a schematic once specific components and determining how they will physically be laid out upon a printed circuit board. Inspirational honeywell thermostat wiring diagram for rth 3 4 5 wire a beginner s overview of circuit diagrams a first appearance at a circuit representation may be complex however if you can review a train map you can check out schematics. There are only four wires going into the existing thermostat red green blue white. How to wire a honeywell thermostat with 4 wires. The model number of the honeywell thermostat was not provided however here are the typical wiring assignments for a conventional heating system. We have a 19 year old condo with an old carrier mercury thermostat.
Just take a look at the picture below the diagram. Both examples of how to wire a honeywell thermostat with 4 wires are discussed below. Y yellow wire for cooling enable g green wire controls fan on auto the diagram shows how the wiring works. But here is a list of the most common wire color mappings as seen in many four wire t stat setups. The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. The red wire or 24 vac power lead is connected straight to the rc 4 terminals.
4 wire or 5 wire thermostat wiring problem question. Typical 4 wire thermostat t stat wiring examples follow. Heat pumps are different than air conditioners because a heat pump uses the process of refrigeration to heat and coolwhile 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.
Gallery of Honeywell 4 Wire Thermostat Wiring Diagram
