ecobee thermostats require a C (popular) wire to energy on. If the current thermoregulator uses just two cables (R and W, or T and T), you will find a few installation choices available, based on the job.
Prior to starting out, take note the annotated following:
You simply will not manage to install the Power Extender Kit (PEK) with heat-only systems that are 2-wire. The PEK is only able to 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 work, and these 2-wire systems that are heat-only not need these G and Y wires
To find out compatibility, you shall have to access both the wiring at your thermoregulator plus the wiring at your home heating in which 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 JUST 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 wires that are extra have actually behind your wall surface during the thermoregulator
Eliminate your thermoregulator from the wall surface to see any unused cables which are maybe maybe not presently attached to your thermoregulator. Make sure to always check behind the wall surface during the thermoregulator also. 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 quantity down and continue to step three.
Action 3:Determine just what wiring terminals you’ve got on your own heat
The next move involves verifying exactly what your thermostat cables connect with at your heating gear.
Make a note of the wiring tints at your thermoregulator and also the kinds of terminals they truly are linked to. Next, locate 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 regards to the make and model of one’s gear, your thermoregulator wires may connect with the immediate following:
- Wiring terminals such as for example R, W, and C at your furnace
- A fuel valve with terminals such as for example Th, Tr, and Th-Tr
- T/T connections, usually linked to https://www.bestbrides.org 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 straightforward as linking a 3rd cable to your common regarding the furnace or boiler’s low-voltage point that is common. Based on your furnace, this might be either a terminal marked “C” or “Com 24V”, or perhaps you may have to find where in fact the popular could be attached to.
Every furnace and boiler that includes a transformer that is 24vac have a typical terminalвЂ”just trace the 2 low-voltage wires and determine where they connect with. If you have a current connection point, then touch the C cable from the thermoregulator as of this point. Often cutting/stripping the typical cable for splicing the thermoregulator’s C cable are often needed.
IF YOU HAVE GOT A SUPPLEMENTARY CABLE
Merely link the extra cable to your typical connection point.
IF YOU’VE GOT NO ADDITIONAL WIRES
If you don’t have any additional 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 would be to power the ecobee with 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 in 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 ( not DC production)