WIRING LEGEND
9
INSTRUCTION MANUAL
RC DH H C
Y2 RH W2
OB
W1
EH
G Y1
TERMINAL
EQUIPMENT
STANDARD COLOR
Y1
Cool 1 or Compressor (HP)
Yellow
G
Fan
Green
W1/EH
Heat 1 or Emergency Heat (HP)
White
W2/OB
Reversing Valve or Heat 2
Orange
RH
24VAC Heat
Red
Y2
No Connection
Unknown
C
24VAC Common
Blue
H
No Connection
DH
No Connection
RC
24VAC Cool
NOTE: The above colors are standard in HVAC industry. The wiring should be
confirmed before installation
MOUNTING THERMOSTAT TO THE WALL
8
XCI
TSZ-1
1.
Make sure to turn off the power supply located at the electrical service panel.
All heating and cooling units should be OFF.
2.
Separate the backplate from the thermostat by grasping the unit firmly at the
bottom lip and pulling gently until the two piece are apart.
3.
Align the backplate to the wall.
4.
Mark the three locations for drilling the 3/16” holes required for the plastic
screw anchors.
5.
Remove the backplate and drill the three 3/16” holes in these locations.
6.
Insert the plastic gyproc screws and ensure that they are snug in the wall.
7.
Securely mount the backplate to the wall with the 3 supplied screws.
8.
Make the appropriate wire connections based on the specifications of the
household HVAC unit(s). Please refer to Wiring Table to determine the appro-
priate wire connections.
9.
Place the thermostat on the backplate by firmly but gently from the top align-
ing the pins with the screw terminals.
10. Turn on the electricity at the electrical service panel.
0706-XCI Manual-TSZ-1:TSZ-1 6/20/07 3:53 PM Page 8
