ecobee3 lite smartthermostat, black - you want to connect C-wire to the other side of the same end of the transformer that R-wire runs from -- you should read about 24V AC between the terminals + - maybe as much as 4 or 5V while idle, and not much more than that. in the past
ecobee3 lite smartthermostat, black - you want to connect C-wire to the other side of the same end of the transformer that R-wire runs from -- you should read about 24V AC between the terminals + - maybe as much as 4 or 5V while idle, and not much more than that. in the past
ecobee3 lite smartthermostat, black - you want to connect C-wire to the other side of the same end of the transformer that R-wire runs from -- you should read about 24V AC between the terminals + - maybe as much as 4 or 5V while idle, and not much more than that. in the past
