3 Or 4 Wires - Ecobee ecobee4 Install Manual

CHE CKP OINT: 3 OR 4 WIR ES
The Power Extender Kit requires your
system to have the following wires:
4 wires: W/W1, Y/Y1, G, and R (or Rc or Rh)
or 3 wires: Y/Y1, G, and R (or Rc or Rh)
Do you have these wires?
YES NO
R R R R
C H C H
YES
NO
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The Power Extender Kit
or email support@ecobee.com
will work with your system!