Honeywell thermostat 4 wire diagram. How to wire a honeywell thermostat with 4 wires. We have both a natural gas furnace and an ac unit. Typical 4 wire thermostat t stat wiring examples follow. Nest wiring diagram 4 wires duration.
With its implementation of a 2 or 4 wire non. A wiring diagram is a streamlined conventional pictorial representation of an electrical circuit. It reveals the parts of the circuit as streamlined shapes and the power and also signal connections in between the gadgets. Upgrading from a 4 wire thermostat to a 5 wire.
Loosen the terminal screws using a screwdriver insert the. Both examples of how to wire a honeywell thermostat with 4 wires are discussed below. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. 4 wire or 5 wire thermostat wiring problem question.
If you have a system that both heats and cools your house you need a more complex thermostat with more wire terminals and if your system incorporates a heat pump you need even more wire terminals. Some have the common c wire while others do not. We have a 19 year old condo with an old carrier mercury thermostat. If its a new installation you may have to identify the wires first.
There are only four wires going into the existing thermostat red green blue white. 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. How to replace a 4 wire thermostat. Substitute g wire for c wire install the honeywell wi fi smart thermostat with this video duration.
This manual thermostats versatility is increased substantially with its implementation of a 2 or 4 wire non polarized connection. Variety of 4 wire thermostat wiring diagram. The model number of the honeywell thermostat was not provided however here are the typical wiring assignments for a conventional heating system. If you check the honeywell thermostat ct31a1003 wiring diagram youll see that it requires only two wires.
Honeywell manual 4 wire premium baseboardline volt thermostat. The honeywell ct410b1017 manual 4 wire thermostat is a simple to install unit thats compatible with 120 240 and 227 vac baseboard systems. The honeywell ct410b1017 manual 4 wire thermostat is a simple to install.