Installation Guide

30
POWERING THE THERMOSTAT
Wiring 24VAC Common
·Single-Transformer System:
Conn
ect the common side of the transformer to the C screw terminal of the thermostat wall
plate. Leave the metal jumper wire in place between RC and R.
·
T wo-Transformer System:
C
onnect the common side of the cooling transformer to the C screw terminal of the
thermostat wall plate. Remove the metal jumper wire between RC and R.
Mount Thermostat to Wall Plate
Align the terminal screw blocks with the pins on the back of the thermostat. Push the
thermostat straight onto the wall plate until it snaps into place. See Fig. 21.