How you can Install a Five Line Thermostat

1 Heat/1 Cool Thermostat

Everything you may need:

Thermostat
Phillips screwdriver (I’d suggest a 6-in-1)
A Precision screwdriver (phillips or apartment )
W ire Strippers
A Level (rather a torpedo level)
PPE (Personal Protection Equipment, safety glasses, gloves, etc.. .)

In this tutorial we are supposing that the thermostat cable was ran from your furnace into your thermostat place.

First step is to put on your PPE equipment closely by turning off the breaker followed. In case you have a switch by your furnace I would also suggest turning that to the off position as well.Failing to perform this step can, and most likely will, result in broken equipment. BE SURE TO TURN THE SYSTEM OFF!

Proceed to the place or to where your thermostat is set up. If this is a new install and you are pulling wire I’d suggest pulling 18/8 thermostat wire. Most thermostats and standard (single heating / single trendy ) systems will not need more than 5 wire to run your fan, heating, and heating attributes. But, it’s never a bad idea to have extra cable for future expansion of the body (I.E. outdoor air sensor, humidification, etc.. .) .

Eliminate your thermostat. It is important that you don’t simply throw it away if your furnace has mercury bulbs. Mercury is toxic and should be handled as such. If you have one of those thermostats please see the site for handling and appropriate disposal of your old t-stat. (epa.gov)

Determine what kind of wire was pulled As soon as your thermostat is removed. Depending on how old your home is you could have anywhere between two (2) to eight (8) cable pulled. Nearly all of today’s digital thermostats need five or more wire to be pulled to the thermostat place. If you have two cord pulled into your location don’t worry you wont necessarily need to pull wire. There are thermostats that can be found on the market.


Hopefully you have at least five (5) cable pulled into the location. We’re going to base the remainder of the tutorial with the thought that you have pulled.

You should have the following cable colours:

Red / White / Yellow / Green / Blue

On some older cables your colours might not be exactly the exact same but these colors would be the norm now, at least in the USA.

For a better knowledge of your own body, and exactly what each wire is for, I will break them down.

Red (R terminal): The red wire is your control voltage wire. It is the cable that offers a 24v signal from your Furnace to your Thermostat which permits your thermostat to maneuver signs back to your own furnace to Heat, Cool, operate your Fan, and any accessories that you might have. It enables your thermostat to display all the attributes of it and also supplies power. Temperature, date, time, etc.. .

White (W or W1 terminal): The white cable is in your control circuit for heatingsystem. It helps a signal to travel into your furnace out of the thermostat.

Yellow (Y or Y1 terminal): The yellow wire is on your hands circuit for cooling. It helps a signal to travel out of your thermostat into your furnace when it’s time to cool.

Green (G terminal): The green cable is in your hands circuit for your own syllable. It helps a signal to travel into your furnace to run the fan from your thermostat.

Blue (C or Y or B terminal): The blue cable is the typical wire. It enables your thermostat to have a screen and back-lights and completes the control voltage circuit to your thermostat.

Now that you have a better understanding of exactly what each wire is actually for let us begin installing your own thermostat.

Separate your thermostats face plate from it is base-plate. Put your face-plate in a secure location. Thread the wire through the back of this base-plate and apply the mounting hardware (normally supplied with the toaster ) to mount your thermostat. Ensure your thermostat base-plate is flat with your torpedo degree. Once you’ve mounted your base-plate we can begin wiring your thermostat.

First thing is ; If the sheathing of this thermostat wire is we need to strip sheathing back so we are able to work with our five wires. I suggest stripping at least six inches of sheathing leaving the five wires exposed and no more bound by the 31, In case you have enough slack on your cable.

1-1

Standard 18/5 Wire.

If you do not Have Sufficient slack to do so only use what you have from the previous thermostat

Once the wires are vulnerable we’ll strip approximately 1/4″ from every one of the individual wires. Exposing the aluminum.

For the purposes of the tutorial I will assign an order to connect your cables into the bottom plate although there is no particular order you need to do the next.

We’ll start with the cable. Plug the exposed aluminum from the RED wire into the terminal. Utilize your controller screwdriver to screw the terminal screw onto the wire. Give a emitting, on the cable, to make certain that the wire is fastened to the base-plate.

Next we will attach the Blue cable. Insert the exposed aluminum into the C terminal. This terminal may also be labeled with an X or a B. Simply install the wire to the C terminal In case you’ve got these labels in your base-plate all. Utilize your control screwdriver to twist the terminal screw onto the wire. Give a light emitting, on the wire, to ensure that the wire is secured to the base-plate.

Then we will take the Green cable. Insert the exposed aluminum wire of the thermostats base-plate. Use your control screwdriver to screw down the terminal screw onto the wire. Give a mild tug, on the cable that is now attached, to make certain that the cable is secured to the base-plate.

We’ll take the White cable. Plug the exposed aluminum from the WHITE wire on your base-plate into the W terminal. This terminal may also be tagged W1 or W1/O depending on your thermostat. Use your control screwdriver to twist the terminal screw on the wire. Give a tug, on the attached cable, to make certain that the wire is fastened to the base-plate.

We’ll take the Yellow cable and plug the copper that is exposed into the Y terminal. This terminal may also be labeled Y1. Use your controller screwdriver to twist the terminal screw onto the cable. Give a light emitting, on the wire, to ensure that the cable is secured to the base-plate.

Congratulations, you’ve wired your thermostat! Snap back your faceplate on your base-plate. Viola! You’re done with that area of the setup.

Just to ensure we are matching on the furnace end remove the entry panels to check the wiring matches up and you will have to find your furnace. While the coordination that I’ve shown you here is basically a standard now, you can’t know what the tech that is original did. It’s best to double check his wiring to make certain that it matches what we done using the thermostat. Check to Be Certain that each wire matches Precisely the same as we did:

Red to R

Blue to C

Green to G

White into W

Yellow to Y

Be sure to change any discrepancies you may find in the furnace wiring. Once you’re done for this, put the panels back. Go to power and your breaker on the furnace . In the event that you had a support disconnect (a switch) next to your furnace move and turn this on at this time as well.

The fun part. Go back to your thermostat and check to find out whether the display of it is on. To guarantee everything is functioning properly operate it through every purpose: Fan on, Heat on, A/C on.

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