Ecobee Smart Si - Page 22

YN/C
W
O/B
GRCRHCY2
W2
AUX
1-stage AC
C
24V
Boiler
C
R
W
Y1
R
C
Y2
G
Air Handler
Smart Si Thermostat
Boiler with air handler and single-stage cool
* Remove RH/RC factory jumper
C terminal to be connected to heating
transformer common
17