Ecobee ecobee4 - Step 2 Diagram

NOTE During setup, select 2-wire (ACC+, ACC-) accesory on the
thermostat screen.
ACC+
ACC-
W2
W1
C
R
H
RC
G
Y1
Y2
O/B
PEK
(24V) R CC G Y W
Humidifier/
Dehumidifier Solenoid
Furnace
Control Board
HUMIDIFIER / DEHUMIDIFIER (1-WIRE SETUP)
Step 2: Wire the humidifier/dehumidifer
as shown below.