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View Full Version : Replacing seco 24 vac ta2000 stat with a honeywell ct3611- does the black w go


jack of many
Aug 20, 2013, 08:50 AM
I am replacing a Seco 24 VAC TA2000 with a Honeywell CT3611thermostat. On the SECO, Black wire is currently connected to E and blue is connected to X .

From the Honeywell's previous wiring connection to a similar system, the blue wire was connected to Honeywell's C. All other wires are connected to the corresponding color's letter - although white is connected to Honeywell's W2. There is a jumper from Honeywell Y to W1.

There is a Black wire on the Seco stat connected to it's E terminal on the far right.

Where does this black belong on the Honeywell?