Wire Connections - 1 Source S1-THEC11NS Owner's Manual

OWNER'S MANUAL

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
C
RH, R, M, Vr, A
Y1 or Y
W1, W or H
G or F
RC, R, M, Vr, A
O/B
*The RC and RH terminals have a factory installed jumper to control
single transformer systems. Remove this jumper to control dual
transformer systems.
Thermal Insulating Sheet
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.
S1-THEC11NS
Install on the
new thermostat
Function
connector marked
Common
Power
(Heating Transformer)
Cooling
Heating
Fan
Power
(Cooling Transformer)
Rev. Valve
C
RH
Y
W
G
RC
Fig. 1
Wire Slots
Page 11
C (optional)
RH*
Y
W
G
RC*
O/B