My thermostat has just two cables. Am I appropriate for ecobee?

My thermostat has just two cables. Am I appropriate for ecobee?

ecobee thermostats require a C (popular) wire to energy on. In the event your current thermoregulator utilizes just two cables (R and W, or T and T), you can find an installation that is few available, according to the job.

Prior to starting, take note the annotated following:

    You won’t have the ability to install the Power Extender Kit (PEK) with heat-only 2-wire systems. The PEK can just only be properly used on furnace or heat pump systems that don’t have C cable — the reason being the PEK calls for R (energy), G (fan), and Y (compressor) cables to work, and these 2-wire systems that are heat-only not need these G and Y cables

To ascertain compatibility, you shall want to access both the wiring at your thermoregulator plus the wiring at your home heating in which the thermoregulator wiring comes to an end.

You can reach out to ecobee support for guidance, or hire a technician to aid in installation if you are not comfortable doing so

  • Based on exactly how many extra cables you’ve got behind the wall surface during the thermoregulator, many of these choices will need extra elements that aren’t added to the ecobee, including running brand brand brand new cables and/or buying an external transformer that is 24VAC SP/NO isolation relay, or Fast-Stat Common Maker
  • STEP 1:DETERMINE JUST HOW MANY THERMOSTATS YOU HAVE CONTROLLING YOUR HEATING SYSTEM

    For those who 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

    Eliminate your thermoregulator from the wall surface to check out any unused cables being maybe perhaps not presently linked to your thermoregulator. Make sure to check always behind the wall surface in the thermostat aswell. In some instances, the wire bundle during the thermoregulator will contain much more than two cables total, with many unused cables readily available for use.

    Note this quantity down and continue to step three.

    Action 3:Determine just just just what wiring terminals you have got on your own home heating

    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 together with kinds of terminals they have been attached to. Next, find your thermoregulator wires at your heating gear. You will have to find the true part of that the two low-voltage thermostat wires join up along with your gear.

    With respect 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 example Th, Tr, and Th-Tr
    • T/T connections, frequently attached to an Aquastat

    Situation A:MY THERMOSTAT CONNECTS TO R AND W

    When your thermostat cables connect with terminals marked R and W, installation can be straightforward as linking a 3rd cable into the typical from the furnace or boiler’s low-voltage typical point. According to your furnace, this can be either a terminal marked “C” or “Com 24V”, or you may have to find where in actuality the popular may be attached to.

    Every furnace and boiler which includes a 24vac transformer will have a typical terminal—just trace the 2 low-voltage wires to discover where they hook up to. When there is a current connection point, then touch the C cable from the thermoregulator as of this point. Often cutting/stripping the wire that is common splicing the thermoregulator’s C cable are often needed.

    IF YOU’VE GOT AN ADDITIONAL CABLE

    Merely link the extra wire to your typical connection point.

    IF YOU’VE GOT NO ADDITIONAL WIRES

    If you don’t have any extra cables, you have got two choices:

    • Run a extra cable at your thermoregulator down to your gear
    • Buy and install a Fast-Stat Common Maker

    ALTERNATE SOLUTION: 24VAC TRANSFORMER that is PLUG-IN

    A different is always to power the ecobee with a outside plug-in transformer that is 24VAC. This transformer may be connected to a mail order bride legit wall surface, and will be wired the following:

    • The 24VAC transformer wires would hook up to RC and C in the ecobee
    • The 2 cables on the old thermostat would connect with RH and W1 in the ecobee

    NOTE: Ensure the transformer is with the capacity of 24V AC production ( perhaps perhaps not DC production)