ecobee thermostats require a C (popular) wire to energy on. Should your current thermoregulator utilizes just two cables (R and W, or T and T), you can find a few installation choices available, dependent on the job.
Before starting out, take note the immediate following:
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You won’t have the ability to install the Power Extender Kit (PEK) with heat-only systems that are 2-wire. The PEK can simply be applied on furnace or temperature pump systems which do not have C cable — it is because the PEK calls for R (energy), G (fan), and Y (compressor) cables to work, and these 2-wire heat-only systems do not have these G and Y wires
To find out compatibility, you shall have to access both the wiring at your thermoregulator along with the wiring at your home heating where in actuality the thermoregulator wiring finishes.
You can reach out to ecobee support for guidance, or hire a technician to aid in installation if you are not comfortable doing so
ACTION 1:DETERMINE EXACTLY HOW MANY THERMOSTATS YOU HAVE CONTROLLING YOUR HEATING SYSTEM
For those who have one thermostat managing your heating system, continue to Step 2 below.
Action 2:Determine how many additional cables you have actually behind your wall surface during the thermoregulator
Eliminate your thermostat from the wall surface to see any unused cables being maybe perhaps not presently linked to your thermoregulator. Make sure to check always behind the wall surface during the thermoregulator too. The wire bundle at the thermostat will contain more than two wires total, with numerous unused wires available for use in some cases.
Note this true quantity down and proceed to step three.
Step 3:Determine just what wiring terminals you’ve got on your own heat
The step that is next confirming exactly what your thermostat cables connect with at your heating gear.
Put in writing the wiring tints at your thermoregulator and also the forms of terminals they have been attached to. Next, find your thermoregulator wires at your heating gear. You will have to find the point in that the two low-voltage thermostat wires join up together with your gear.
With respect to the make and model of one’s gear, your thermoregulator wires may hook up to the annotated following:
- Wiring terminals such as for instance R, W, and C at your furnace
- A fuel valve with terminals such as for example Th, Tr, and Th-Tr
- T/T connections, frequently linked to an Aquastat
Situation A:MY THERMOSTAT LINKS TO R AND W
In case your thermostat cables connect with terminals marked R and W, installation can be as simple as linking a 3rd cable into the typical regarding the furnace or boiler’s low-voltage typical point. Dependent on your furnace, this might be either a terminal marked „C“ or „Com 24V“, or perhaps you may have to find where in actuality the popular may be attached to.
Every furnace and boiler which includes a transformer that is 24vac have a standard terminal—just trace the 2 low-voltage wires and view where they connect with. Then tap the C wire coming from the thermostat at this point if there is an existing connection point. Often cutting/stripping the typical cable for splicing the thermoregulator’s C cable can also be needed.
IF YOU’VE GOT AN ADDITIONAL CABLE
Merely link the extra cable into the connection point that is common.
IF YOU’VE GOT NO ADDITIONAL WIRES
If you don’t have any additional cables, you’ve got two choices:
- Run a wire that is additional your thermoregulator down to your equipment
- Buy and put in a Fast-Stat Common Maker
ALTERNATE SOLUTION: 24VAC TRANSFORMER that is PLUG-IN
A different would be to power the ecobee by having an outside 24VAC plug-in transformer. This transformer could be attached to a wall surface, and will be wired the following:
- The 24VAC transformer cables would connect with RC and C regarding the ecobee
- The 2 cables on your own old thermostat would connect with RH and W1 regarding the ecobee
NOTE: Ensure the transformer is with the capacity of 24V AC production ( perhaps perhaps not DC production)