Ecobee ecobee3 - Step 3: PEK Wiring Connections; Labeling and PEK Terminal Overview; PEK Cover and Base Wiring

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3. Using the stickers provided with the PEK, label the
wires in the control panel leading to the thermostat.
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 equipment panel connections.
PEK Cover
PEK Base
G
R
Y
W
W
G
R
Y
Y
W
G
C
R
Pre-installed wires
to HVAC
Wires connecting to
thermostat