Wiring Digram - Ecobee ecobee4 Install Manual

W I RIN G DI AGR AM
Boiler or radiant system with air handler
and conventional cooling or heating.
Rc
G
Y1
Y2
O/B
PEK
Air
Handler
NOTE Do not connect any jumper wires between Rc and Rh. ecobee does this
automatically. The R wire needs to go into the Rc terminal on
your ecobee.
Y1 Y2 R C G
Y1 Y2 C O/B*
Air Conditioner
or Heat Pump*
R
H
C
W1
W2
ACC-
ACC+
W1 R W2
Boiler
*Reversing
valve for heat
pumps only
*Stage 2 heat
and cool,
if applicable