How to hook up a digital thermostat
Last Updated: Digiital 5, References. To create this article, volunteer authors worked to edit and improve it over time. This is pratt dating 2018 has been viewedtimes. Learn more Many older homes have outdated thermostats in which you turn a knob to set it to the desired temperature. These old thermostats can be inefficient and cause heating and cooling bills to rise.
Check your thermostat wiring compatibility. Skip to main content. Our Accessibility Statement. How do I wire my thermostat? Last updated. When wiring, each wire should be identified by what terminal s it connects to — never by color. The thermostat uses one wire to control the primary functions of your HVAC system, such as heating, cooling, and fan.
Digital thermostat hook up - DECIBEL
Old thermostat. Ta, wiring in your new programmable thermostat has a new programmable - how to designate hool pneumatic thermostat? Honeywell thdv is about programmable thermostat? Old thermastat black and cooling system a 2 wire thermostat. When you have a digital thermostat can be purchased for remote wall plate, showing screw terminal connection points.
Even the most seasoned people who enjoy DIY may come across problems with wiring a thermostat. I will explain that in a little more detail further down this page. Thermostah I would like you to know is the information detailed below is based on the industry standard, yet not all thermostats will work this way simply because letters and numbers hiw used as well as color. So, this is what you might expect to see in terms of colored wires and what they mean:. AND it has been recorded by a professional in the industry. Thermostat Center is supported by our readers. When you purchase an item through links on our site, we may earn an affiliate commission.
Yellow — The yellow wire connects to your compressor. Green — The green wire connects to the fan. Orange — This wire connects to your heat pump if you have one. Red — Now, there can be two separate wires for this.
Make a note of any present wire not connected to a terminal. Do not label these wires. Referring to your photo, remove and label each wire.
If we recommend placing a wire in a terminal, do not move it to another terminal if we address it later in the guide. You typically have one or two of those three. Thermostats may have a jumper switch, metal staple, or plug.
The jumper may also be a wire connecting the two terminals. 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 have a Trane model thermostat and a wire labeled X or B, refer to your thermostat manual.
In some cases, one of those wires is your common. If you have a C wire, place it into the C terminal on your wall plate. C wire adapters are available here. This wire goes to the G terminal on your new thermostat. If your O or B terminal shares a label with another wire — typically W —identify whether you have a heat pump system or not. A heat pump runs your compressor for both heating and cooling. Turn off the power to your furnace before beginning digital thermostat installation.
Remove the cover of the old thermostat. Remove the screws from the screw terminals in the sub-base of the old thermostat and remove it from the wall. Disconnect the wires and label them with masking tape so you know where to connect them to the new digital thermostat. Simply mark each spot with the tape with the corresponding letter on it. If the screw holes line up, you can use the old ones. If not, use a drill for new holes and use dry wall mounts if needed.
Mount the sub-base of your new digital thermostat over the old location. Attach the wires to the correct terminals in the new digital thermostat sub-base on the wall.
Attach the cover of the new digital thermostat to the sub-base on the wall. Set the temperature to your new digital thermostat and experience how efficiently it regulates the temperature in your home. If your digital thermostat is the programmable kind, simply program in the desired temperature. It will regulate the temperature in your home to this degree, and keep it there.
If you are talking about the wire for the C common terminal you will either need to buy a thermostat that does not require a C terminal or you will have to buy a 24 volt transformer and wire that to an electrical box. Yes No. Not Helpful 1 Helpful 8. You will need to remove the front cover or remove the thermostat from the wall to access the battery.
Not Helpful 3 Helpful 3. I replaced the thermostat. The heat is working, but not the air. What do I do if the air does not come on? Verify you connected the wires in the manner appropriate for your air conditioner. The thermostat should have come with instructions. Not Helpful 6 Helpful 4. Include your email address to get a message when this question is answered. By using this service, some information may be shared with YouTube. Don't hesitate to install a digital thermostat because you think the task is difficult.
In most cases, it is quite simple to do. Helpful 9 Not Helpful 4.