Ecobee ecobee3 - Step 1: Power Off HVAC System; Safely Powering Down the System; Verification of System Power Off

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4. Open up the PEK. It has two rows of terminals (one
side is for thermostat connections, the other side,
pre-wired, is for the control board connections).
5. Disconnect the wires from the control board and
reconnect them to the corresponding terminals on the
thermostat side of the PEK.
6. Using the wires provided with the PEK, connect the
terminals on the equipment side of the PEK to the
corresponding terminals on the control board.
7. Close the PEK and use the provided double-sided
tape on the back to mount it in a dry location that
doesn’t strain the wires. The PEK can be safely placed
on any free space on an inside wall of your HVAC unit.
8. Close the HVAC cover panel.
Wires connecting
to thermostat
Power Extender Kit basePower Extender Kit cover
Y
W
G
C
R
W
G
R
Y
G
R
Y
W
Pre-installed wires
to HVAC control board