Temperature Controller, 2 Wire Room Thermostat Heating Thermostat Digital Thermostat with Large Screen LCD Display Wall Hanging for Control Room Temperature (White)

Product Information

Some thermostats have a neon indicator built in, which is internally connected in parallel with the accelerator heater. This is illuminated when the thermostat is on (calling for heat). Other information Earth connections to thermostats The BCC100 also features an automatic schedule programming mode that makes it easy to set up a comfortable temperature schedule for your home. 2-wire heat-only smart thermostat We now know ‘what exactly is a 2 wire thermostat’. Let’s review some of the popular 2 wire thermostat models used in US households.

The Ecobee Smart Thermostat (5th Gen) comes with multimedia support, power audio components, plenty of third-party support, and a user-friendly application. All air conditioner thermostats have a red wire for power. You may also have Rc or Rh terminals for dual transformer systems; these are special cases in thermostat wiring. Thermostat White Wire (“W1” or “W2” Wire) We will learn what each color wire means. Understanding color coding will give you a good understanding of how the thermostat actually functions. While reading the install manual for Honeywell RTH6580WF (old unit: Radio Thermostat CT32), I learned not to look at wires using the colors but by the terminals to which they are connected.

THERMOSTAT REBATES

Identify any wires labeled R, RH, or RC. You typically have one or two of those three. If you have one wire — even if it’s labeled RC — it goes into the R terminal, setting the jumper connecting terminals R and RC in place. Thermostats may have a jumper switch, metal staple, or plug. The jumper may also be a wire connecting the two terminals. If you have two wires, R or RH go into the R terminal and RC into the RC terminal. If you have more than one wire (for example, you have a wire labeled R and another wire labeled Rc), remove any jumpers between the R and Rc terminals or push the switch to open the RC terminal to insert a wire. If you are DIY thermostat wiring, here’s the easiest thing to do before removing the old thermostat:

Take a photo of the wires; you can also label where each one goes, but taking a photo is much easier. If you see wires connected to terminals labeled G1 G2 G3, you need a thermostat capable of controlling multiple fan speeds; none of our retail thermostats are compatible with this system type. G is compatible, but not G1, G2, or G3.

In addition to heating (2 wire thermostats) and C or fan (3 wire thermostats), 4 wire thermostats include the cooling wire, usually in blue or yellow color. Here are the wires in 4 wire thermostats with terminal codes and color codes (also referred to as 4 wire thermostat wiring color code):