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Step 4. Set Thermostat for Your Type of Heating System
I
M
P
O
R
T
A
N
T
:
IMPORTANT:
Setting your thermostat correctly
for your type of heating system
allows it to maintain accurate
temperature control, minimize
swings in the temperature of the
room, and efficiently run the fan.
a. Use the FUEL SWITCH on the
back of the thermostat to set your
new thermostat for the type of fuel
that your heating system uses: F–
gas or oil, or E–electric.
NOTE: This setting enables
proper fan operation.
b. Use DIP switches 1 and 2 on
the back of the thermostat to set
your new thermostat for your type
of heating system. See the Heat-
ing System Table on the next
page to find the correct settings.
NOTE: These DIP switches are
factory-set for a warm air, gas, or
oil heating system.
c. The thermostat is set to display the temperature in degrees Fahrenheit (°F). If you want to display the tem-
perature in degrees Celsius (°C), turn DIP Switch 3 to Off position.
d. You can install the batteries and program your thermostat now, or you can wait until the thermostat is
mounted on the wall. To install the batteries, see Step 7.To program the thermostat, see the Programming
section.
Fig. 8.
M2063
7
R
W Y G
W Y G
C R R
THERMOSTAT BACK
DISPLAY F
DISPLAY C
3 - ON
3 - OFF
F
E
FUEL SWITCH
WARM AIR
FURNACE
1 - ON 2 - ON F
1 - OFF 2 - ON F
1 - ON 2 - OFF E
FUEL SWITCH
POSITION
DIP SWITCH
POSITION
HEATING
SYSTEM
C
C
C
1
OFF ON
2
3
ON
1
2
3
HOT WATER OR
HIGH EFFICIENCY
ELECTRIC
FURNACE