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
Install on the
old thermostat
Function
new thermostat
terminal marked
connector marked
C
Common
C (optional)
Rh, R, M, Vr, A
Power
RH*
(Heating Transformer)
Y1 or Y
Cooling
Y
W1, W or H
Heating
W
G or F
Fan
G
RC, R, M, Vr, A
Power
RC*
(Cooling Transformer)
O/B
Rev. Valve
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.
Wire
Slots
C O/B
Y
W G RC RH
4Z95
MODEL: TSTATD1100-2
97061606
MADE IN CHINA
USE SIZE “AA”
ALKALINE BATTERIES
