During installation the wires are connected to one board that sends certain data through each wire to the thermostat. Honeywell thermostat wiring diagram 4 wire examples.

Wv 9071 Gqf Incubator Thermostat Wiring Diagram Wiring Diagram
T stat wiring diagram. Always follow manufacturers instructions for both the thermostat and the hvac system. Heat pump thermostat wiring chart diagram hvac the following graphics are meant as a guide only. O or b these terminals are for heat pumps and the b t stat terminal is used on for rheem or ruud and any manufacturer that energizes the reversing valve in heating mode. Even the most seasoned people who enjoy diy may come across problems with wiring a thermostat. For the thermostat wiring colors code for this terminal if equipped consult with the installer. Heck now im not calling anyone a dummy.
But here is a list of the most common wire color mappings as seen in many four wire t stat setups. Additional articles on this site concerning thermostats and wiring can help you solve your problem or correctly wire a new thermostat. How to read ac wiring diagram duration. Wiring a heat pump thermostat to the air handler and outdoor unit. The system will not operate correctly if the wires are incorrectly. Finally if that is not possible then trace the wire out to the source.
The main trouble is dealing with those different colored wires knowing which one does what and if that wasnt enough you also have numbers and letters to deal with. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. By the use of an adjustable set point the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home and to turn off the system when the desired temperature is achieved. Word of advice tv 60284 views. C 24 vac common you might see blue purple or brown typically used for this wire. Thermostat wire is made of multiple strands of solid copper wire each wrapped individually with a colored shell and enclosed together inside a protective sheathing.
The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system. Sophisticated gadgets and apparatus even come to increase your house with technologies one of which can be nest thermostat. Nest t stat wiring diagram nest t stat wiring diagram nest thermostat wiring diagram air conditioner nest thermostat wiring diagram dual fuel technology makes a much better life and it is true.