ecobee thermostats require a C (common) wire to energy on. In the event your current thermoregulator utilizes just two cables (R and W, or T and page T), you can find a few installation choices available, according to the job.
Prior to starting, take note the immediate following:
You won’t have the ability to install the Power Extender Kit (PEK) with heat-only 2-wire systems. The PEK can simply be properly used 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) wires to use, and these 2-wire heat-only systems do not need these G and Y cables
To ascertain compatibility, you shall have to access both the wiring at your thermoregulator along with the wiring at your heat in which the thermoregulator wiring concludes.
If you’re uncomfortable performing this, you’ll touch base to ecobee help for guidance, or employ a specialist to help in installation
ACTION 1:DETERMINE EXACTLY HOW MANY THERMOSTATS YOU HAVE CONTROLLING YOUR HEATING SYSTEM
When you yourself have one thermostat managing your heating system, continue to step two below.
Action 2:Determine how many additional cables you have actually behind your wall surface in the thermoregulator
Remove your thermoregulator from the wall surface to check out any unused cables which are perhaps perhaps maybe not presently linked to your thermoregulator. Make sure to always check behind the wall during the thermoregulator too. In many cases, the cable bundle during the thermoregulator will contain much more than two cables total, with numerous unused cables readily available for usage.
Note this true quantity down and continue to step three.
Action 3:Determine what wiring terminals you’ve got in your heat
The next thing involves confirming exactly what your thermostat cables connect with at your heating equipment.
Make a note of the wiring colours at your thermoregulator and also the kinds of terminals these are typically linked to. Next, find your thermoregulator wires at your heating gear. You will have to find the part of that the two low-voltage thermostat wires join up together with your gear.
With regards to the make and model of the 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 instance Th, Tr, and Th-Tr
- T/T connections, usually attached to an Aquastat
Situation A:MY THERMOSTAT LINKS TO R AND W
When your thermostat cables connect with terminals marked R and W, installation can be as straightforward as linking a 3rd cable into the typical regarding the furnace or boiler’s low-voltage typical point. Based on your furnace, this might be either a terminal marked “C” or “Com 24V”, or perhaps you might want to find where in fact the common could be linked to.
Every furnace and boiler which have a 24vac transformer will have a typical terminalвЂ”just trace the 2 low-voltage wires and find out where they hook up to. If you have a preexisting connection point, then touch the C cable from the thermoregulator at this point. Often cutting/stripping the typical wire for splicing the thermoregulator’s C cable are often needed.
IF YOU’VE GOT A SUPPLEMENTARY CABLE
Merely link the extra cable towards the connection point that is common.
IF YOU HAVE GOT NO ADDITIONAL WIRES
Should you not have any extra cables, you’ve got two choices:
- Run a extra cable at your thermoregulator down to your gear
- Buy and use a Fast-Stat Common Maker
ALTERNATE SOLUTION: 24VAC PLUG-IN TRANSFORMER
Another solution is always to power the ecobee with a outside plug-in transformer that is 24VAC. This transformer are connected to a wall surface, and could be wired the following:
- The 24VAC transformer cables would hook up to 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 maybe not DC production)