ecobee thermostats require a C (popular) wire to energy on. In case your current thermoregulator makes use of just two cables (R and W, or T and T), you will find a few installation choices available, according to the job.
Prior to getting started, please note the immediate following:
You’ll not manage to install the Power Extender Kit (PEK) with heat-only 2-wire systems. The PEK can only just be utilized on furnace or temperature pump systems which do not have C cable вЂ” it is because the PEK calls for R (energy), G (fan), and Y (compressor) cables to work, and these 2-wire systems that are heat-only n’t have these G and Y cables
To ascertain compatibility, you will have to access both the wiring at your thermostat plus the wiring at your home heating where in actuality the thermostat 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 JUST HOW MANY THERMOSTATS YOU HAVE CONTROLLING YOUR HEATING SYSTEM
For those who have one thermostat managing your heating system, proceed to step two below.
Action 2:Determine how many additional cables you have actually behind your wall surface in the thermoregulator
Eliminate your thermoregulator from the wall surface and look for any unused cables which are perhaps maybe not presently linked to your thermoregulator. Make sure to always check behind the wall surface in the thermostat too. In order wives some instances, the cable bundle during the thermoregulator will contain sigbificantly more than two wires total, with many unused cables designed for usage.
Note this true quantity down and continue to Step 3.
Action 3:Determine just what wiring terminals you’ve got on your own home heating
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 additionally the forms of terminals they’ve been linked to. Next, find your thermoregulator wires at your heating equipment. You’ll want to find the point in that the two low-voltage thermostat wires join up along with your gear.
With regards to the make and model of one’s gear, your thermoregulator wires may hook up to the immediate 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 attached 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 is really as straightforward as linking a third cable to your typical in the furnace or boiler’s low-voltage point that is common. Dependent on your furnace, this can be either a terminal marked “C” or “Com 24V”, or perhaps you might have to find where in actuality the popular could be linked to.
Every furnace and boiler that includes a transformer that is 24vac have a typical terminalвЂ”just trace the 2 low-voltage wires to see where they hook up to. Then tap the C wire coming from the thermostat at this point if there is an existing connection point. Often cutting/stripping the wire that is common splicing the thermoregulator’s C cable are often needed.
IF YOU’VE GOT A SUPPLEMENTARY WIRE
Merely link the free cable to your connection point that is common.
IF YOU’VE GOT NO ADDITIONAL WIRES
You have two options if you do not have any additional wires:
- Run a wire that is additional your thermostat down to your gear
- 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 having a outside plug-in transformer that is 24VAC. This transformer could be attached to a wall surface, and could be wired the following:
- The transformer that is 24VAC would hook up to RC and C from the ecobee
- The 2 cables in your old thermostat would connect with RH and W1 from the ecobee
NOTE: Ensure the transformer can perform 24V AC production ( perhaps maybe not DC production)