OWNER'S MANUAL
Page 11
Wire Connections
If the terminal designations on your old
thermostat do not match those on the
new thermostat,
refer to the chart below
or the wiring diagrams that follow.
Wire from the
old thermostat
terminal marked
Function
Install on the
new thermostat
connector marked
C
Common
Y1 or Y
Cooling
Y
W1, W or H
Heating
W
G or F
Fan
G
O/B
Rev. Valve
O/B
C (optional)
A label is provided on the
backplate that prevents drafts
originating inside the wall from
entering the thermostat.
These drafts, left unchecked, may
cause incorrect room temperature
readings.
Please do not remove this label
from the thermostat. Insert the wires
through the slots provided in the label
as shown in Fig. 1.
Thermal Insulating Sheet
RC, R, M, Vr, A
Power
RC*
(Cooling Transformer)
RH, R, M, Vr, A
Power
RH*
(Heating Transformer)
*The RC and RH terminals have a factory installed jumper to control
single transformer systems. Remove this jumper to control dual
transformer systems.
Wire Slots
S1-THEC11NS
Fig. 1
4
Z
9
5
M
O
D
E
L:
S
1
-T
H
E
C
1
1
N
S
9
7
0
6
1
6
0
6
M
A
D
E
IN
C
H
IN
A
U
SE
S
IZ
E
“
A
A
”
A
LK
A
LI
N
E
B
A
TT
E
R
IE
S
C
RH
Y
W
G
RC
O
/B
